diff --git a/.drone-manifest-local.yml b/.drone-manifest-local.yml deleted file mode 100644 index d9da4dd..0000000 --- a/.drone-manifest-local.yml +++ /dev/null @@ -1,22 +0,0 @@ -image: registry.nemunai.re/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}latest{{/if}} -{{#if build.tags}} -tags: -{{#each build.tags}} - - {{this}} -{{/each}} -{{/if}} -manifests: - - image: registry.nemunai.re/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64 - platform: - architecture: amd64 - os: linux - - image: registry.nemunai.re/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64 - platform: - architecture: arm64 - os: linux - variant: v8 - - image: registry.nemunai.re/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm - platform: - architecture: arm - os: linux - variant: v7 diff --git a/.drone-manifest.yml b/.drone-manifest.yml deleted file mode 100644 index ade2314..0000000 --- a/.drone-manifest.yml +++ /dev/null @@ -1,22 +0,0 @@ -image: nemunaire/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}latest{{/if}} -{{#if build.tags}} -tags: -{{#each build.tags}} - - {{this}} -{{/each}} -{{/if}} -manifests: - - image: nemunaire/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64 - platform: - architecture: amd64 - os: linux - - image: nemunaire/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64 - platform: - architecture: arm64 - os: linux - variant: v8 - - image: nemunaire/youp0m:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm - platform: - architecture: arm - os: linux - variant: v7 diff --git a/.drone.yml b/.drone.yml deleted file mode 100644 index 358f8fc..0000000 --- a/.drone.yml +++ /dev/null @@ -1,130 +0,0 @@ ---- -kind: pipeline -type: docker -name: build-arm64 - -platform: - os: linux - arch: arm64 - -steps: - - name: build - image: golang:alpine - commands: - - apk --no-cache add git go-bindata - - go generate -v - - go get -v -d - - go build -v -ldflags="-s -w" -o youp0m - - wget -O Dockerfile https://ankh.serekh.nemunai.re/local/Dockerfile-youp0m - - wget -O entrypoint.sh https://ankh.serekh.nemunai.re/local/entrypoint.sh-youp0m && chmod +x entrypoint.sh - - - name: publish - image: plugins/docker - settings: - repo: nemunaire/youp0m - auto_tag: true - auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH} - experimental: true - squash: true - username: - from_secret: docker_username - password: - from_secret: docker_password - - - name: publish on nemunai.re - image: plugins/docker - settings: - registry: registry.nemunai.re - repo: registry.nemunai.re/youp0m - auto_tag: true - auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH} - experimental: true - squash: true - username: - from_secret: docker_nemunai.re_username - password: - from_secret: docker_nemunai.re_password - ---- -kind: pipeline -type: docker -name: build-amd64 - -platform: - os: linux - arch: amd64 - -steps: - - name: build - image: golang:alpine - commands: - - apk --no-cache add git go-bindata - - go generate -v - - go get -v -d - - go build -v -ldflags="-s -w" -o youp0m - - wget -O Dockerfile https://ankh.serekh.nemunai.re/local/Dockerfile-youp0m - - wget -O entrypoint.sh https://ankh.serekh.nemunai.re/local/entrypoint.sh-youp0m && chmod +x entrypoint.sh - - - name: publish - image: plugins/docker - settings: - repo: nemunaire/youp0m - auto_tag: true - auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH} - experimental: true - squash: true - username: - from_secret: docker_username - password: - from_secret: docker_password - - - name: publish on nemunai.re - image: plugins/docker - settings: - registry: registry.nemunai.re - repo: registry.nemunai.re/youp0m - auto_tag: true - auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH} - experimental: true - squash: true - username: - from_secret: docker_nemunai.re_username - password: - from_secret: docker_nemunai.re_password - ---- -kind: pipeline -name: docker-manifest - -steps: -- name: publish - image: plugins/manifest - settings: - auto_tag: true - ignore_missing: true - spec: .drone-manifest.yml - username: - from_secret: docker_username - password: - from_secret: docker_password - -- name: publish on nemunai.re - image: plugins/manifest - settings: - auto_tag: true - ignore_missing: true - spec: .drone-manifest-local.yml - username: - from_secret: docker_nemunai.re_username - password: - from_secret: docker_nemunai.re_password - -trigger: - event: - - cron - - push - - tag - -depends_on: -- build-arm64 -- build-amd64 diff --git a/.gitignore b/.gitignore deleted file mode 100644 index 656e38e..0000000 --- a/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -youp0m -vendor \ No newline at end of file diff --git a/api.go b/api.go index 6fcd695..66cecd0 100644 --- a/api.go +++ b/api.go @@ -12,31 +12,21 @@ import ( type DispatchFunction func(*User, []string, io.ReadCloser) (interface{}, error) +var apiRoutes = map[string]*(map[string]struct{AuthFunction;DispatchFunction}){ + "images": &ApiImagesRouting, + "next": &ApiNextImagesRouting, + "version": &ApiVersionRouting, +} + type apiHandler struct { - PE *PictureExplorer - Authenticate func(*http.Request) *User - routes map[string](map[string]struct { - AuthFunction - DispatchFunction - }) + Authenticate func(*http.Request) (*User) } -func NewAPIHandler(pe *PictureExplorer, authenticate func(*http.Request) *User) *apiHandler { - return &apiHandler{ - pe, - authenticate, - map[string](map[string]struct { - AuthFunction - DispatchFunction - }){ - "images": ApiImagesRouting(pe), - "next": ApiNextImagesRouting(pe), - "version": ApiVersionRouting, - }, - } +func ApiHandler(Authenticate func(*http.Request) (*User)) (apiHandler) { + return apiHandler{Authenticate} } -func (a *apiHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { +func (a apiHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { user := a.Authenticate(r) log.Printf("Handling %s API request from %s: %s %s [%s]\n", r.Method, r.RemoteAddr, r.URL.Path, user, r.UserAgent()) @@ -62,8 +52,8 @@ func (a *apiHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { // Route request if len(sURL) == 0 { err = errors.New(fmt.Sprintf("No action provided")) - } else if h, ok := a.routes[sURL[0]]; ok { - if f, ok := h[r.Method]; ok { + } else if h, ok := apiRoutes[sURL[0]]; ok { + if f, ok := (*h)[r.Method]; ok { if f.AuthFunction(user, sURL[1:]) { ret, err = f.DispatchFunction(user, sURL[1:], r.Body) } else { diff --git a/api_images.go b/api_images.go index 685215b..422b767 100644 --- a/api_images.go +++ b/api_images.go @@ -5,88 +5,72 @@ import ( "io" ) -func ApiImagesRouting(pe *PictureExplorer) map[string]struct { - AuthFunction - DispatchFunction -} { - return map[string]struct { - AuthFunction - DispatchFunction - }{ - "GET": {PublicPage, pe.listImages}, - "POST": {PublicPage, pe.addImage}, - "DELETE": {PrivatePage, pe.hideImage}, - } +var ApiImagesRouting = map[string]struct{AuthFunction; DispatchFunction}{ + "GET": {PublicPage, listImages}, + "POST": {PublicPage, addImage}, + "DELETE": {PrivatePage, hideImage}, } -func ApiNextImagesRouting(pe *PictureExplorer) map[string]struct { - AuthFunction - DispatchFunction -} { - return map[string]struct { - AuthFunction - DispatchFunction - }{ - "GET": {PrivatePage, pe.listNextImages}, - "POST": {PublicPage, pe.addImage}, - "DELETE": {PrivatePage, pe.deleteImage}, - } +var ApiNextImagesRouting = map[string]struct{AuthFunction; DispatchFunction}{ + "GET": {PrivatePage, listNextImages}, + "POST": {PublicPage, addImage}, + "DELETE": {PrivatePage, deleteImage}, } -func (pe *PictureExplorer) listImages(u *User, args []string, body io.ReadCloser) (interface{}, error) { +func listImages(u *User, args []string, body io.ReadCloser) (interface{}, error) { if len(args) < 1 { - return pe.GetPublishedImages() + return GetPublishedImages() } else if args[0] == "last" { - return pe.GetLastImage() + return GetLastImage() } else { - return pe.GetPublishedImage(args[0]) + return GetPublishedImage(args[0]) } } -func (pe *PictureExplorer) listNextImages(u *User, args []string, body io.ReadCloser) (interface{}, error) { +func listNextImages(u *User, args []string, body io.ReadCloser) (interface{}, error) { if len(args) < 1 { - return pe.GetNextImages() + return GetNextImages() } else if len(args) >= 2 && args[1] == "publish" { - if pict, err := pe.GetNextImage(args[0]); err != nil { + if pict, err := GetNextImage(args[0]); err != nil { return nil, err - } else if err := pe.Publish(pict); err != nil { + } else if err := pict.Publish(); err != nil { return nil, err } else { return true, nil } } else { - return pe.GetNextImage(args[0]) + return GetNextImage(args[0]) } } -func (pe *PictureExplorer) addImage(u *User, args []string, body io.ReadCloser) (interface{}, error) { +func addImage(u *User, args []string, body io.ReadCloser) (interface{}, error) { if len(args) < 1 { return nil, errors.New("Need an image identifier to create") - } else if err := pe.AddImage(args[0], body); err != nil { + } else if err := AddImage(args[0], body); err != nil { return nil, err } else { return true, nil } } -func (pe *PictureExplorer) hideImage(u *User, args []string, body io.ReadCloser) (interface{}, error) { +func hideImage(u *User, args []string, body io.ReadCloser) (interface{}, error) { if len(args) < 1 { return nil, errors.New("Need an image identifier to delete") - } else if pict, err := pe.GetPublishedImage(args[0]); err != nil { + } else if pict, err := GetPublishedImage(args[0]); err != nil { return nil, errors.New("No matching image") - } else if err := pe.Unpublish(pict); err != nil { + } else if err := pict.Unpublish(); err != nil { return nil, err } else { return true, nil } } -func (pe *PictureExplorer) deleteImage(u *User, args []string, body io.ReadCloser) (interface{}, error) { +func deleteImage(u *User, args []string, body io.ReadCloser) (interface{}, error) { if len(args) < 1 { return nil, errors.New("Need an image identifier to delete") - } else if pict, err := pe.GetNextImage(args[0]); err != nil { + } else if pict, err := GetNextImage(args[0]); err != nil { return nil, errors.New("No matching image") - } else if err := pe.Remove(pict); err != nil { + } else if err := pict.Remove(); err != nil { return nil, err } else { return true, nil diff --git a/assets-dev.go b/assets-dev.go deleted file mode 100644 index 549607f..0000000 --- a/assets-dev.go +++ /dev/null @@ -1,32 +0,0 @@ -//go:build dev -// +build dev - -package main - -import ( - "flag" - "net/http" - "os" - "path/filepath" -) - -var ( - Assets http.FileSystem - StaticDir string = "static/" -) - -func init() { - flag.StringVar(&StaticDir, "static", StaticDir, "Directory containing static files") -} - -func sanitizeStaticOptions() error { - StaticDir, _ = filepath.Abs(StaticDir) - if _, err := os.Stat(StaticDir); os.IsNotExist(err) { - StaticDir, _ = filepath.Abs(filepath.Join(filepath.Dir(os.Args[0]), "static")) - if _, err := os.Stat(StaticDir); os.IsNotExist(err) { - return err - } - } - Assets = http.Dir(StaticDir) - return nil -} diff --git a/assets.go b/assets.go deleted file mode 100644 index 1841ebe..0000000 --- a/assets.go +++ /dev/null @@ -1,28 +0,0 @@ -//go:build !dev -// +build !dev - -package main - -import ( - "embed" - "io/fs" - "log" - "net/http" -) - -//go:embed static/* static/js/* static/css/* -var _assets embed.FS - -var Assets http.FileSystem - -func init() { - sub, err := fs.Sub(_assets, "static") - if err != nil { - log.Fatal("Unable to cd to static/ directory:", err) - } - Assets = http.FS(sub) -} - -func sanitizeStaticOptions() error { - return nil -} diff --git a/auth.go b/auth.go index 0860bd9..96fe98d 100644 --- a/auth.go +++ b/auth.go @@ -6,7 +6,7 @@ import ( "os" "strings" - "gitlab.com/nyarla/go-crypt" + "github.com/nyarla/go-crypt" ) type User struct { @@ -52,9 +52,10 @@ func (h Htpasswd) Authenticate(username, password string) *User { } } + /// Request authentication -func Authenticate(htpasswd Htpasswd, r *http.Request) *User { +func Authenticate(htpasswd Htpasswd, r *http.Request) (*User) { // Authenticate the user if any if username, password, ok := r.BasicAuth(); ok { return htpasswd.Authenticate(username, password) @@ -63,6 +64,7 @@ func Authenticate(htpasswd Htpasswd, r *http.Request) *User { } } + /// Page rules type AuthFunction func(*User, []string) bool diff --git a/backend.go b/backend.go deleted file mode 100644 index e5d2073..0000000 --- a/backend.go +++ /dev/null @@ -1,44 +0,0 @@ -package main - -import ( - "fmt" - "image" - "io" - "net/http" - "strings" -) - -var existing_backends []string - -type BackendSelector string - -func (s *BackendSelector) String() string { - return string(*s) -} - -func (s *BackendSelector) Set(v string) error { - found := false - for _, b := range existing_backends { - if strings.ToLower(v) == b { - found = true - tmp := BackendSelector(v) - s = &tmp - break - } - } - - if !found { - return fmt.Errorf("%q is not a known file backend (existing backends: %v)", v, existing_backends) - } - return nil -} - -type FileBackend interface { - DeletePicture(string, string) error - ServeFile() http.Handler - GetPicture(string, string, io.Writer) error - GetPictureInfo(string, string) (*Picture, error) - ListPictures(string) ([]*Picture, error) - MovePicture(string, string, string) error - PutPicture(string, string, *image.Image) error -} diff --git a/backend_local.go b/backend_local.go deleted file mode 100644 index 55aa353..0000000 --- a/backend_local.go +++ /dev/null @@ -1,106 +0,0 @@ -package main - -import ( - "image" - "image/jpeg" - "io" - "io/ioutil" - "net/http" - "os" - "path" - "time" -) - -func init() { - existing_backends = append(existing_backends, "local") -} - -type LocalFileBackend struct { - BaseDir string -} - -func (l *LocalFileBackend) getPath(box, name string) string { - return path.Join(l.BaseDir, box, name+".jpg") -} - -func (l *LocalFileBackend) DeletePicture(box, name string) error { - return os.Remove(l.getPath(box, name)) -} - -func (l *LocalFileBackend) ServeFile() http.Handler { - return http.FileServer(http.Dir(l.BaseDir)) -} - -func (l *LocalFileBackend) createPictureInfo(local_path, name string, file os.FileInfo) *Picture { - return &Picture{ - local_path, // Path - name, // Basename - name[:len(name)-len(path.Ext(name))], // Sanitized filename - file.ModTime(), // UploadTime - } -} - -func (l *LocalFileBackend) GetPicture(box, name string, w io.Writer) error { - local_path := l.getPath(box, name) - - fd, err := os.Open(local_path) - if err != nil { - return err - } - defer fd.Close() - - _, err = io.Copy(w, fd) - - return err -} - -func (l *LocalFileBackend) GetPictureInfo(box, name string) (*Picture, error) { - local_path := l.getPath(box, name) - - file, err := os.Stat(local_path) - if err != nil { - return nil, err - } - - return l.createPictureInfo(path.Join(box, name+".jpg"), name, file), nil -} - -func (l *LocalFileBackend) ListPictures(box string) ([]*Picture, error) { - files, err := ioutil.ReadDir(path.Join(l.BaseDir, box)) - if err != nil { - return nil, err - } - - pictures := make([]*Picture, 0) - for _, file := range files { - if !file.IsDir() { - pictures = append(pictures, l.createPictureInfo(path.Join(box, file.Name()), file.Name(), file)) - } - } - - return pictures, nil -} - -func (l *LocalFileBackend) MovePicture(box_from, box_to, name string) error { - newpath := l.getPath(box_to, name) - - err := os.Rename( - l.getPath(box_from, name), - newpath, - ) - if err != nil { - return err - } - - return os.Chtimes(newpath, time.Now(), time.Now()) -} - -func (l *LocalFileBackend) PutPicture(box, name string, img *image.Image) error { - fd, err := os.OpenFile(l.getPath(box, name), os.O_RDWR|os.O_CREATE, 0644) - if err != nil { - return err - } - defer fd.Close() - - return jpeg.Encode(fd, *img, nil) -} diff --git a/backend_s3.go b/backend_s3.go deleted file mode 100644 index 4d6c589..0000000 --- a/backend_s3.go +++ /dev/null @@ -1,272 +0,0 @@ -package main - -import ( - "bytes" - "flag" - "fmt" - "image" - "image/jpeg" - "io" - "log" - "net/http" - "os" - "path" - - "github.com/aws/aws-sdk-go/aws" - "github.com/aws/aws-sdk-go/aws/credentials" - "github.com/aws/aws-sdk-go/aws/session" - "github.com/aws/aws-sdk-go/service/s3" - "github.com/aws/aws-sdk-go/service/s3/s3manager" -) - -var ( - s3_endpoint string - s3_region = "us" - s3_bucket string - s3_access_key string - s3_secret_key string - s3_path_style bool -) - -func init() { - existing_backends = append(existing_backends, "s3") - - if endpoint, ok := os.LookupEnv("S3_ENDPOINT"); ok { - backend = "s3" - s3_endpoint = endpoint - } - if region, ok := os.LookupEnv("S3_REGION"); ok { - backend = "s3" - s3_region = region - } - s3_bucket, _ = os.LookupEnv("S3_BUCKET") - s3_access_key, _ = os.LookupEnv("S3_ACCESS_KEY") - s3_secret_key, _ = os.LookupEnv("S3_SECRET_KEY") - if path_style, ok := os.LookupEnv("S3_PATH_STYLE"); ok { - s3_path_style = path_style == "1" || path_style == "ON" || path_style == "on" || path_style == "TRUE" || path_style == "true" || path_style == "yes" || path_style == "YES" - } - - flag.StringVar(&s3_endpoint, "s3-endpoint", s3_endpoint, "When using S3 backend, endpoint to use") - flag.StringVar(&s3_region, "s3-region", s3_region, "When using S3 backend, region to use") - flag.StringVar(&s3_bucket, "s3-bucket", s3_bucket, "When using S3 backend, bucket to use") - flag.StringVar(&s3_access_key, "s3-access-key", s3_access_key, "When using S3 backend, Access Key") - flag.StringVar(&s3_secret_key, "s3-secret-key", s3_secret_key, "When using S3 backend, Secret Key") - flag.BoolVar(&s3_path_style, "s3-path-style", s3_path_style, "When using S3 backend, force path style (when using minio)") -} - -type S3FileBackend struct { - Endpoint string - Region string - Bucket string - AccessKey string - SecretKey string - PathStyle bool - BaseDir string -} - -func (l *S3FileBackend) getPath(box, name string) string { - if l.BaseDir == "" { - return path.Join(box, name+".jpg") - } else { - return path.Join(l.BaseDir, box, name+".jpg") - } -} - -func (l *S3FileBackend) newSession() (*session.Session, error) { - return session.NewSession(&aws.Config{ - Credentials: credentials.NewStaticCredentials(l.AccessKey, l.SecretKey, ""), - Endpoint: &l.Endpoint, - Region: &l.Region, - S3ForcePathStyle: &l.PathStyle, - }) -} - -func (l *S3FileBackend) DeletePicture(box, name string) error { - s, err := l.newSession() - if err != nil { - return err - } - - log.Println(l.getPath(box, name)) - - input := &s3.DeleteObjectsInput{ - Bucket: aws.String(l.Bucket), - Delete: &s3.Delete{ - Objects: []*s3.ObjectIdentifier{ - { - Key: aws.String(l.getPath(box, name)), - }, - }, - }, - } - - _, err = s3.New(s).DeleteObjects(input) - return err -} - -func (l *S3FileBackend) ServeFile() http.Handler { - return l -} - -func (l *S3FileBackend) ServeHTTP(w http.ResponseWriter, r *http.Request) { - s, err := l.newSession() - if err != nil { - return - } - - result, err := s3.New(s).GetObject(&s3.GetObjectInput{ - Bucket: aws.String(l.Bucket), - Key: aws.String(r.URL.Path), - }) - if err != nil { - return - } - - io.Copy(w, result.Body) -} - -func (l *S3FileBackend) createPictureInfo(local_path, name string, file *s3.Object) *Picture { - return &Picture{ - local_path, // Path - name, // Basename - name[:len(name)-len(path.Ext(name))], // Sanitized filename - *file.LastModified, // UploadTime - } -} - -func (l *S3FileBackend) GetPicture(box, name string, w io.Writer) error { - s, err := l.newSession() - if err != nil { - return err - } - - s3_path := l.getPath(box, name) - - input := &s3.GetObjectInput{ - Bucket: aws.String(l.Bucket), - Key: aws.String(s3_path), - } - - result, err := s3.New(s).GetObject(input) - if err != nil { - return err - } - - _, err = io.Copy(w, result.Body) - - return err -} - -func (l *S3FileBackend) GetPictureInfo(box, name string) (*Picture, error) { - s, err := l.newSession() - if err != nil { - return nil, err - } - - input := &s3.ListObjectsInput{ - Bucket: aws.String(l.Bucket), - Prefix: aws.String(l.getPath(box, name)), - } - - result, err := s3.New(s).ListObjects(input) - if err != nil { - return nil, err - } - - var pictures []*Picture - for _, file := range result.Contents { - pictures = append(pictures, l.createPictureInfo(*file.Key, path.Base(*file.Key), file)) - break - } - - if len(pictures) == 0 { - return nil, fmt.Errorf("Object not found") - } - - return pictures[0], nil -} - -func (l *S3FileBackend) ListPictures(box string) ([]*Picture, error) { - s, err := l.newSession() - if err != nil { - return nil, err - } - - input := &s3.ListObjectsInput{ - Bucket: aws.String(l.Bucket), - } - - if l.BaseDir == "" { - input.Prefix = aws.String(box) - } else { - input.Prefix = aws.String(path.Join(l.BaseDir, box)) - } - - result, err := s3.New(s).ListObjects(input) - if err != nil { - return nil, err - } - - pictures := make([]*Picture, 0) - for _, file := range result.Contents { - pictures = append(pictures, l.createPictureInfo(path.Join(box, *file.Key), path.Base(*file.Key), file)) - } - - return pictures, nil -} - -func (l *S3FileBackend) MovePicture(box_from, box_to, name string) error { - s, err := l.newSession() - if err != nil { - return err - } - - log.Println(l.getPath(box_from, name), l.getPath(box_to, name)) - - _, err = s3.New(s).CopyObject(&s3.CopyObjectInput{ - Bucket: aws.String(l.Bucket), - CopySource: aws.String(path.Join("", l.Bucket, l.getPath(box_from, name))), - Key: aws.String(l.getPath(box_to, name)), - }) - if err != nil { - return err - } - - log.Println(l.getPath(box_from, name)) - - input := &s3.DeleteObjectsInput{ - Bucket: aws.String(l.Bucket), - Delete: &s3.Delete{ - Objects: []*s3.ObjectIdentifier{ - { - Key: aws.String(l.getPath(box_from, name)), - }, - }, - }, - } - - _, err = s3.New(s).DeleteObjects(input) - return err -} - -func (l *S3FileBackend) PutPicture(box, name string, img *image.Image) error { - s, err := l.newSession() - if err != nil { - return err - } - - bbuf := new(bytes.Buffer) - err = jpeg.Encode(bbuf, *img, nil) - if err != nil { - return err - } - - _, err = s3manager.NewUploader(s).Upload(&s3manager.UploadInput{ - Bucket: aws.String(l.Bucket), - ACL: aws.String("public-read"), - Key: aws.String(l.getPath(box, name)), - Body: bbuf, - }) - - return err -} diff --git a/go.mod b/go.mod deleted file mode 100644 index 20b88a8..0000000 --- a/go.mod +++ /dev/null @@ -1,9 +0,0 @@ -module git.nemunai.re/youp0m - -go 1.16 - -require ( - github.com/aws/aws-sdk-go v1.44.136 - github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 - gitlab.com/nyarla/go-crypt v0.0.0-20160106005555-d9a5dc2b789b -) diff --git a/go.sum b/go.sum deleted file mode 100644 index 7195d1a..0000000 --- a/go.sum +++ /dev/null @@ -1,108 +0,0 @@ -github.com/aws/aws-sdk-go v1.44.91 h1:SRWmuX7PTyhBdLuvSfM7KWrWISJsrRsUPcFDSFduRxY= -github.com/aws/aws-sdk-go v1.44.91/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.95 h1:QwmA+PeR6v4pF0f/dPHVPWGAshAhb9TnGZBTM5uKuI8= -github.com/aws/aws-sdk-go v1.44.95/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.96 h1:S9paaqnJ0AJ95t5AB+iK8RM6YNZN0W0Lek1gOVJsEr8= -github.com/aws/aws-sdk-go v1.44.96/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.97 h1:lxgxp7d6uuGsP7jHKIX3GHd7ExFigCIF04VuKf8XUII= -github.com/aws/aws-sdk-go v1.44.97/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.98 h1:fX+NxebSdO/9T6DTNOLhpC+Vv6RNkKRfsMg0a7o/yBo= -github.com/aws/aws-sdk-go v1.44.98/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.99 h1:ITZ9q/fmH+Ksaz2TbyMU2d19vOOWs/hAlt8NbXAieHw= -github.com/aws/aws-sdk-go v1.44.99/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.100 h1:7I86bWNQB+HGDT5z/dJy61J7qgbgLoZ7O51C9eL6hrA= -github.com/aws/aws-sdk-go v1.44.100/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.101 h1:O/em5aIxKI/FkwcWAFKEY+JhPDCRsqoVUC6xEF4tGic= -github.com/aws/aws-sdk-go v1.44.101/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.102 h1:6tUCTGL2UDbFZae1TLGk8vTgeXuzkb8KbAe2FiAeKHc= -github.com/aws/aws-sdk-go v1.44.102/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.103 h1:tbhBHKgiZSIUkG8FcHy3wYKpPVvp65Wn7ZiX0B8phpY= -github.com/aws/aws-sdk-go v1.44.103/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.104 h1:NiPYL60aOSH0TsAzQngx/aBdxC12TXhgw07DQFh76GU= -github.com/aws/aws-sdk-go v1.44.104/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.105 h1:UUwoD1PRKIj3ltrDUYTDQj5fOTK3XsnqolLpRTMmSEM= -github.com/aws/aws-sdk-go v1.44.105/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.109 h1:+Na5JPeS0kiEHoBp5Umcuuf+IDqXqD0lXnM920E31YI= -github.com/aws/aws-sdk-go v1.44.109/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.115 h1:qFYIx97cT3k54Bn/lfM6idHbqRHILJyG0SY/0qlKiG0= -github.com/aws/aws-sdk-go v1.44.115/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.116 h1:NpLIhcvLWXJZAEwvPj3TDHeqp7DleK6ZUVYyW01WNHY= -github.com/aws/aws-sdk-go v1.44.116/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.117 h1:mZuODB3Y4soG9QWAXyGb2po+6Easa/enifpj4MnZ91s= -github.com/aws/aws-sdk-go v1.44.117/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.118 h1:FJOqIRTukf7+Ulp047/k7JB6eqMXNnj7eb+coORThHQ= -github.com/aws/aws-sdk-go v1.44.118/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.119 h1:TPkpDsanBMcZaF5wHwpKhjkapRV/b7d2qdC+a+IPbmY= -github.com/aws/aws-sdk-go v1.44.119/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.120 h1:dsOxGf17H9hCVCA4aWpFWEcJMHkX+Uw7l4pGcxb27wM= -github.com/aws/aws-sdk-go v1.44.120/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.121 h1:ahBRUqUp4qLyGmSM5KKn+TVpZkRmtuLxTWw+6Hq/ebs= -github.com/aws/aws-sdk-go v1.44.121/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.122 h1:p6mw01WBaNpbdP2xrisz5tIkcNwzj/HysobNoaAHjgo= -github.com/aws/aws-sdk-go v1.44.122/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.123 h1:+vVGJ7+vQU6/wRcgRwSBBrIuG/lLL/0LB3HlN5jFv3c= -github.com/aws/aws-sdk-go v1.44.123/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.124 h1:Xe1WQRUUekZf6ZFm3SD0vplB/AP/hymVqMiRS9LQRIs= -github.com/aws/aws-sdk-go v1.44.124/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.125 h1:yIyCs6HX1BOj6SFTirvBwVM1tTfplKrJOyilIZPtKV8= -github.com/aws/aws-sdk-go v1.44.125/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.126 h1:7HQJw2DNiwpxqMe2H7odGNT2rhO4SRrUe5/8dYXl0Jk= -github.com/aws/aws-sdk-go v1.44.126/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.127 h1:IoO2VfuIQg1aMXnl8l6OpNUKT4Qq5CnJMOyIWoTYXj0= -github.com/aws/aws-sdk-go v1.44.127/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.128 h1:X34pX5t0LIZXjBY11yf9JKMP3c1aZgirh+5PjtaZyJ4= -github.com/aws/aws-sdk-go v1.44.128/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.129 h1:yld8Rc8OCahLtenY1mnve4w1jVeBu/rSiscGzodaDOs= -github.com/aws/aws-sdk-go v1.44.129/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.130 h1:a/qwOxmYJF47xTZvTjECSJXnfRbjegb3YxvCXfETtnY= -github.com/aws/aws-sdk-go v1.44.130/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo= -github.com/aws/aws-sdk-go v1.44.132 h1:+IjL9VoR0OXScQ5gyme9xjcolwUkd3uaH144f4Ao+4s= -github.com/aws/aws-sdk-go v1.44.132/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI= -github.com/aws/aws-sdk-go v1.44.133 h1:+pWxt9nyKc0jf33rORBaQ93KPjYpmIIy3ozVXdJ82Oo= -github.com/aws/aws-sdk-go v1.44.133/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI= -github.com/aws/aws-sdk-go v1.44.135 h1:DJJP/CkEpgafA5p5jlY9VzDRyKrfABVixzIxrK/3tWU= -github.com/aws/aws-sdk-go v1.44.135/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI= -github.com/aws/aws-sdk-go v1.44.136 h1:J1KJJssa8pjU8jETYUxwRS37KTcxjACfKd9GK8t+5ZU= -github.com/aws/aws-sdk-go v1.44.136/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI= -github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9YPoQUg= -github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo= -github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U= -github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ= -github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8= -github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= -github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= -github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= -github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= -gitlab.com/nyarla/go-crypt v0.0.0-20160106005555-d9a5dc2b789b h1:7gd+rd8P3bqcn/96gOZa3F5dpJr/vEiDQYlNb/y2uNs= -gitlab.com/nyarla/go-crypt v0.0.0-20160106005555-d9a5dc2b789b/go.mod h1:T3BPAOm2cqquPa0MKWeNkmOM5RQsRhkrwMWonFMN7fE= -golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= -golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= -golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= -golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= -golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= -golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk= -golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= -golang.org/x/net v0.1.0/go.mod h1:Cx3nUiGt4eDBEyega/BKRp+/AlGL8hYe7U9odMt2Cco= -golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= -golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= -golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= -golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= -golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= -golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= -golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8= -golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= -golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= -golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= diff --git a/images.go b/images.go index af74ce7..a18baf6 100644 --- a/images.go +++ b/images.go @@ -6,14 +6,14 @@ import ( "strings" ) -type imagesHandler struct { +type imagesHandler struct{ name string - auth func(*http.Request) bool + auth func(*http.Request) (bool) hndlr http.Handler - getter func(fname string) (*Picture, error) + getter func(fname string) (Picture, error) } -func ImagesHandler(name string, auth func(*http.Request) bool, hndlr http.Handler, getter func(fname string) (*Picture, error)) imagesHandler { +func ImagesHandler(name string, auth func(*http.Request) (bool), hndlr http.Handler, getter func(fname string) (Picture, error)) (imagesHandler) { return imagesHandler{name, auth, hndlr, getter} } @@ -39,7 +39,7 @@ func (i imagesHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { } // Check rights - if !i.auth(r) { + if ! i.auth(r) { w.Header().Set("WWW-Authenticate", "Basic realm=\"YouP0m\"") http.Error(w, "You are not allowed to perform this request.", http.StatusUnauthorized) return @@ -50,7 +50,7 @@ func (i imagesHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { http.Error(w, err.Error(), http.StatusNotFound) return } else { - r.URL.Path = "/" + pict.path + r.URL.Path = "/" + pict.basename i.hndlr.ServeHTTP(w, r) } } diff --git a/main.go b/main.go index 7203564..1ca07d2 100644 --- a/main.go +++ b/main.go @@ -2,31 +2,27 @@ package main import ( "flag" - "fmt" "log" "net/http" "os" - "path" + "path/filepath" ) -var mux = http.NewServeMux() - -var ( - ThumbsDir string - backend = "local" -) +var PublishedImgDir string +var NextImgDir string +var ThumbsDir string func main() { bind := flag.String("bind", ":8080", "Bind port/socket") htpasswd_file := flag.String("htpasswd", "", "Admin passwords file, Apache htpasswd format") - publishedImgDir := flag.String("publishedimgdir", "published/", "Directory where save published pictures") - nextImgDir := flag.String("nextimgdir", "next/", "Directory where save pictures to review") - baseDir := flag.String("basedir", "images/", "Local base directory where find published and next dirs") - flag.StringVar(&backend, "storage-backend", backend, fmt.Sprintf("Storage backend to use (between: %s)", existing_backends)) + flag.StringVar(&PublishedImgDir, "publishedimgdir", "./images/published/", "Directory where save published pictures") + flag.StringVar(&NextImgDir, "nextimgdir", "./images/next/", "Directory where save pictures to review") flag.StringVar(&ThumbsDir, "thumbsdir", "./images/thumbs/", "Directory where generate thumbs") flag.Parse() - htpasswd := &Htpasswd{} + htpasswd := &Htpasswd{ + entries: map[string]string{"admin": "2fClb0C8dIphk"}, + } if htpasswd_file != nil && *htpasswd_file != "" { log.Println("Reading htpasswd file...") @@ -34,12 +30,21 @@ func main() { if htpasswd, err = NewHtpasswd(*htpasswd_file); htpasswd == nil { log.Fatal("Unable to parse htpasswd:", err) } - } else if *nextImgDir == "next/" { - log.Println("Disable admin interface, images will be published without moderation") - nextImgDir = publishedImgDir + } else { + log.Println("Using default credentials for administrative part: admin:admin") } log.Println("Checking paths...") + if _, err := os.Stat(PublishedImgDir); os.IsNotExist(err) { + if err := os.MkdirAll(PublishedImgDir, 0755); err != nil { + log.Fatal(err) + } + } + if _, err := os.Stat(NextImgDir); os.IsNotExist(err) { + if err := os.MkdirAll(NextImgDir, 0755); err != nil { + log.Fatal(err) + } + } if _, err := os.Stat(ThumbsDir); os.IsNotExist(err) { if err := os.MkdirAll(ThumbsDir, 0755); err != nil { log.Fatal(err) @@ -47,69 +52,47 @@ func main() { } log.Println("Registering handlers...") - authFunc := func(r *http.Request) *User { return Authenticate(*htpasswd, r) } + authFunc := func (r *http.Request) (*User){ return Authenticate(*htpasswd, r) } - if err := sanitizeStaticOptions(); err != nil { - log.Fatal(err) - } - - mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { - r.URL.Path = "/" - http.FileServer(Assets).ServeHTTP(w, r) - }) - - var storage_backend FileBackend - if backend == "local" { - storage_backend = &LocalFileBackend{*baseDir} - if _, err := os.Stat(path.Join(*baseDir, *publishedImgDir)); os.IsNotExist(err) { - if err := os.MkdirAll(path.Join(*baseDir, *publishedImgDir), 0755); err != nil { - log.Fatal(err) - } + staticDir, _ := filepath.Abs("static") + if _, err := os.Stat(staticDir); os.IsNotExist(err) { + staticDir, _ = filepath.Abs(filepath.Join(filepath.Dir(os.Args[0]), "static")) + if _, err := os.Stat(staticDir); os.IsNotExist(err) { + log.Fatal(err) } - if _, err := os.Stat(path.Join(*baseDir, *nextImgDir)); os.IsNotExist(err) { - if err := os.MkdirAll(path.Join(*baseDir, *nextImgDir), 0755); err != nil { - log.Fatal(err) - } - } - } else if backend == "s3" { - storage_backend = &S3FileBackend{s3_endpoint, s3_region, s3_bucket, s3_access_key, s3_secret_key, s3_path_style, *baseDir} - } else { - log.Fatalf("%q is not a valid storage backend.", backend) - } - log.Printf("Using %s storage backend", backend) - - pe := &PictureExplorer{ - FileBackend: storage_backend, - PublishedImgDir: *publishedImgDir, - NextImgDir: *nextImgDir, } - mux.Handle("/api/", http.StripPrefix("/api", NewAPIHandler(pe, authFunc))) + mux := http.NewServeMux() + mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { http.ServeFile(w, r, filepath.Join(staticDir, "index.html")) }) + mux.Handle("/css/", http.FileServer(http.Dir(staticDir))) + mux.Handle("/js/", http.FileServer(http.Dir(staticDir))) + + mux.Handle("/api/", http.StripPrefix("/api", ApiHandler(authFunc))) mux.Handle("/images/", http.StripPrefix("/images", ImagesHandler( "images", - func(*http.Request) bool { return true }, - pe.ServeFile(), - pe.GetPublishedImage, + func (*http.Request) (bool){ return true; }, + http.FileServer(http.Dir(PublishedImgDir)), + GetPublishedImage, ))) mux.Handle("/images/next/", http.StripPrefix("/images/next", ImagesHandler( "next", - func(r *http.Request) bool { return authFunc(r) != nil }, - pe.ServeFile(), - pe.GetNextImage, + func (r *http.Request) (bool){ return authFunc(r) != nil; }, + http.FileServer(http.Dir(NextImgDir)), + GetNextImage, ))) mux.Handle("/images/thumbs/", http.StripPrefix("/images/thumbs", ImagesHandler( "thumbs", - func(*http.Request) bool { return true }, + func (*http.Request) (bool){ return true; }, http.FileServer(http.Dir(ThumbsDir)), - pe.GetPublishedImage, + GetPublishedImage, ))) mux.Handle("/images/next/thumbs/", http.StripPrefix("/images/next/thumbs", ImagesHandler( "nexthumbs", - func(r *http.Request) bool { return authFunc(r) != nil }, + func (r *http.Request) (bool){ return authFunc(r) != nil; }, http.FileServer(http.Dir(ThumbsDir)), - pe.GetNextImage, + GetNextImage, ))) mux.HandleFunc("/admin/", func(w http.ResponseWriter, r *http.Request) { @@ -117,8 +100,7 @@ func main() { w.Header().Set("WWW-Authenticate", "Basic realm=\"YouP0m\"") http.Error(w, "You are not allowed to perform this request.", http.StatusUnauthorized) } else { - r.URL.Path = "/admin.html" - http.FileServer(Assets).ServeHTTP(w, r) + http.ServeFile(w, r, filepath.Join(staticDir, "admin.html")) } }) diff --git a/picture.go b/picture.go index 42fb39a..ac05793 100644 --- a/picture.go +++ b/picture.go @@ -1,27 +1,22 @@ package main import ( - "encoding/base64" "errors" + "io" + "io/ioutil" "image" _ "image/gif" "image/jpeg" _ "image/png" - "io" "os" - "path" + "path/filepath" "sort" + "strconv" "time" "github.com/nfnt/resize" ) -type PictureExplorer struct { - FileBackend - PublishedImgDir string - NextImgDir string -} - type Picture struct { path string basename string @@ -29,92 +24,143 @@ type Picture struct { UploadTime time.Time `json:"upload_time"` } -type ByUploadTime []*Picture +type ByUploadTime []Picture -func (a ByUploadTime) Len() int { return len(a) } +func (a ByUploadTime) Len() int { return len(a) } func (a ByUploadTime) Swap(i, j int) { a[i], a[j] = a[j], a[i] } -func (a ByUploadTime) Less(i, j int) bool { - return a[i].UploadTime.Sub(a[j].UploadTime).Nanoseconds() < 0 -} +func (a ByUploadTime) Less(i, j int) bool { return a[i].UploadTime.Sub(a[j].UploadTime).Nanoseconds() < 0 } -func (e *PictureExplorer) GetNextImages() (pictures []*Picture, err error) { - pictures, err = e.ListPictures(e.NextImgDir) - sort.Sort(ByUploadTime(pictures)) - return -} - -func (e *PictureExplorer) GetPublishedImages() (pictures []*Picture, err error) { - pictures, err = e.ListPictures(e.PublishedImgDir) - sort.Sort(ByUploadTime(pictures)) - return -} - -func (e *PictureExplorer) GetLastImage() (*Picture, error) { - picts, err := e.GetPublishedImages() - if err != nil { +func getImages(dir string) ([]Picture, error) { + if files, err := ioutil.ReadDir(dir); err != nil { return nil, err + } else { + pictures := make([]Picture, 0) + for _, file := range files { + if !file.IsDir() { + filename := file.Name() + pictures = append(pictures, Picture{ + filepath.Join(dir, filename), // Path + filename, // Basename + filename[:len(filename) - len(filepath.Ext(filename))], // Sanitized filename + file.ModTime(), // UploadTime + }) + } + } + sort.Sort(ByUploadTime(pictures)) + return pictures, nil } - - return picts[len(picts)-1], nil } -func (e *PictureExplorer) GetPublishedImage(fname string) (*Picture, error) { - return e.GetPictureInfo(e.PublishedImgDir, fname) +func GetNextImages() ([]Picture, error) { + return getImages(NextImgDir) } -func (e *PictureExplorer) GetNextImage(fname string) (*Picture, error) { - return e.GetPictureInfo(e.NextImgDir, fname) +func GetPublishedImages() ([]Picture, error) { + return getImages(PublishedImgDir) } -func (e *PictureExplorer) IsUniqueName(filename string) bool { - if pict, _ := e.GetPublishedImage(filename); pict != nil { +func GetLastImage() (Picture, error) { + if picts, err := GetPublishedImages(); err != nil { + return Picture{}, err + } else { + return picts[len(picts)-1], nil + } +} + +func getImage(flist func() ([]Picture, error), fname string) (Picture, error) { + if picts, err := flist(); err != nil { + return Picture{}, err + } else if pid, err := strconv.Atoi(fname); err == nil { + if pid < len(picts) { + return picts[pid], nil + } else { + return Picture{}, errors.New("Invalid picture identifier") + } + } else { + for _, pict := range picts { + if pict.Name == fname || pict.basename == fname { + return pict, nil + } + } + return Picture{}, errors.New("No such picture") + } +} + +func GetPublishedImage(fname string) (Picture, error) { + return getImage(GetPublishedImages, fname) +} + +func GetNextImage(fname string) (Picture, error) { + return getImage(GetNextImages, fname) +} + +func UniqueImage(filename string) (bool) { + if pict, _ := GetPublishedImage(filename); pict.path != "" { return false + } else { + if pict, _ := GetNextImage(filename); pict.path != "" { + return false + } else { + return true + } } - - if pict, _ := e.GetNextImage(filename); pict != nil { - return false - } - - return true } -func (e *PictureExplorer) AddImage(filename string, blob io.ReadCloser) error { +func AddImage(filename string, blob io.ReadCloser) (error) { // Check the name is not already used - if ok := e.IsUniqueName(filename); !ok { + if ok := UniqueImage(filename); !ok { return errors.New("This filename is already used, please choose another one.") - } // Convert to JPEG - img, _, err := image.Decode(base64.NewDecoder(base64.StdEncoding, blob)) - if err != nil { + } else if img, _, err := image.Decode(blob); err != nil { return err - } // Save file - if err := e.PutPicture(e.NextImgDir, filename, &img); err != nil { + } else if fw, err := os.Create(filepath.Join(NextImgDir, filename + ".jpg")); err != nil { return err + } else if err := jpeg.Encode(fw, img, nil); err != nil { + return err + } else { + fw.Close() + + thumb := resize.Thumbnail(300, 185, img, resize.Lanczos3) + + // Save thumbnail + if fw, err := os.Create(filepath.Join(ThumbsDir, filename + ".jpg")); err != nil { + return err + } else if err := jpeg.Encode(fw, thumb, nil); err != nil { + return err + } else { + fw.Close() + } } - thumb := resize.Thumbnail(300, 185, img, resize.Lanczos3) + return nil +} - // Save thumbnail - fw, err := os.Create(path.Join(ThumbsDir, filename+".jpg")) - if err != nil { +func (p Picture) Publish() (error) { + npath := filepath.Join(PublishedImgDir, p.basename) + if err := os.Rename(p.path, npath); err != nil { return err + } else if err := os.Chtimes(npath, time.Now(), time.Now()); err != nil { + return err + } else { + return nil } - defer fw.Close() - - return jpeg.Encode(fw, thumb, nil) } -func (e *PictureExplorer) Publish(p *Picture) error { - return e.MovePicture(e.NextImgDir, e.PublishedImgDir, p.Name) +func (p Picture) Unpublish() (error) { + if err := os.Rename(p.path, filepath.Join(NextImgDir, p.basename)); err != nil { + return err + } else { + return nil + } } -func (e *PictureExplorer) Unpublish(p *Picture) error { - return e.MovePicture(e.PublishedImgDir, e.NextImgDir, p.Name) -} - -func (e *PictureExplorer) Remove(p *Picture) error { - return e.DeletePicture(path.Dir(p.path), p.Name) +func (p Picture) Remove() (error) { + if err := os.Remove(p.path); err != nil { + return err + } else { + return nil + } } diff --git a/renovate.json b/renovate.json deleted file mode 100644 index 7979833..0000000 --- a/renovate.json +++ /dev/null @@ -1,10 +0,0 @@ -{ - "$schema": "https://docs.renovatebot.com/renovate-schema.json", - "packageRules": [ - { - "matchPackageNames": ["github.com/aws/aws-sdk-go"], - "automerge": true, - "automergeType": "branch" - } - ] -} diff --git a/static.go b/static.go deleted file mode 100644 index f8525be..0000000 --- a/static.go +++ /dev/null @@ -1,14 +0,0 @@ -package main - -import ( - "net/http" -) - -func init() { - mux.HandleFunc("/css/", func(w http.ResponseWriter, r *http.Request) { - http.FileServer(Assets).ServeHTTP(w, r) - }) - mux.HandleFunc("/js/", func(w http.ResponseWriter, r *http.Request) { - http.FileServer(Assets).ServeHTTP(w, r) - }) -} diff --git a/static/admin.html b/static/admin.html index 2fc8f91..c1b1445 100644 --- a/static/admin.html +++ b/static/admin.html @@ -4,6 +4,9 @@ YouP0m Administration + + +

Welcome on YouP0m!

@@ -16,7 +19,5 @@ - - diff --git a/static/css/style.css b/static/css/style.css index cdf4039..8b7b6f2 100644 --- a/static/css/style.css +++ b/static/css/style.css @@ -28,24 +28,6 @@ figure.moz { vertical-align: middle; } -figure.moz .menu { - position: absolute; - margin: inherit; - display: none; -} -figure.moz:hover .menu { - display: block; -} -figure.moz:hover .menu a { - background: rgba(0,0,0,0.5); - color: #eee; - padding: 6px 10px 8px 10px; - text-decoration: none; -} -figure.moz .menu a:hover { - background: rgba(0,0,0,0.8); -} - .big img { max-height: calc(100vh - 5px); max-width: calc(100vw - 5px); diff --git a/static/index.html b/static/index.html index 8da01ec..8bf214b 100644 --- a/static/index.html +++ b/static/index.html @@ -4,6 +4,8 @@ YouP0m + +

Welcome on YouP0m!

@@ -16,6 +18,5 @@ - diff --git a/static/js/prototype.js b/static/js/prototype.js new file mode 100644 index 0000000..cc89daf --- /dev/null +++ b/static/js/prototype.js @@ -0,0 +1,7588 @@ +/* Prototype JavaScript framework, version 1.7.3 + * (c) 2005-2010 Sam Stephenson + * + * Prototype is freely distributable under the terms of an MIT-style license. + * For details, see the Prototype web site: http://www.prototypejs.org/ + * + *--------------------------------------------------------------------------*/ + +var Prototype = { + + Version: '1.7.3', + + Browser: (function(){ + var ua = navigator.userAgent; + var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]'; + return { + IE: !!window.attachEvent && !isOpera, + Opera: isOpera, + WebKit: ua.indexOf('AppleWebKit/') > -1, + Gecko: ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1, + MobileSafari: /Apple.*Mobile/.test(ua) + } + })(), + + BrowserFeatures: { + XPath: !!document.evaluate, + + SelectorsAPI: !!document.querySelector, + + ElementExtensions: (function() { + var constructor = window.Element || window.HTMLElement; + return !!(constructor && constructor.prototype); + })(), + SpecificElementExtensions: (function() { + if (typeof window.HTMLDivElement !== 'undefined') + return true; + + var div = document.createElement('div'), + form = document.createElement('form'), + isSupported = false; + + if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) { + isSupported = true; + } + + div = form = null; + + return isSupported; + })() + }, + + ScriptFragment: ']*>([\\S\\s]*?)<\/script\\s*>', + JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/, + + emptyFunction: function() { }, + + K: function(x) { return x } +}; + +if (Prototype.Browser.MobileSafari) + Prototype.BrowserFeatures.SpecificElementExtensions = false; +/* Based on Alex Arnell's inheritance implementation. */ + +var Class = (function() { + + var IS_DONTENUM_BUGGY = (function(){ + for (var p in { toString: 1 }) { + if (p === 'toString') return false; + } + return true; + })(); + + function subclass() {}; + function create() { + var parent = null, properties = $A(arguments); + if (Object.isFunction(properties[0])) + parent = properties.shift(); + + function klass() { + this.initialize.apply(this, arguments); + } + + Object.extend(klass, Class.Methods); + klass.superclass = parent; + klass.subclasses = []; + + if (parent) { + subclass.prototype = parent.prototype; + klass.prototype = new subclass; + parent.subclasses.push(klass); + } + + for (var i = 0, length = properties.length; i < length; i++) + klass.addMethods(properties[i]); + + if (!klass.prototype.initialize) + klass.prototype.initialize = Prototype.emptyFunction; + + klass.prototype.constructor = klass; + return klass; + } + + function addMethods(source) { + var ancestor = this.superclass && this.superclass.prototype, + properties = Object.keys(source); + + if (IS_DONTENUM_BUGGY) { + if (source.toString != Object.prototype.toString) + properties.push("toString"); + if (source.valueOf != Object.prototype.valueOf) + properties.push("valueOf"); + } + + for (var i = 0, length = properties.length; i < length; i++) { + var property = properties[i], value = source[property]; + if (ancestor && Object.isFunction(value) && + value.argumentNames()[0] == "$super") { + var method = value; + value = (function(m) { + return function() { return ancestor[m].apply(this, arguments); }; + })(property).wrap(method); + + value.valueOf = (function(method) { + return function() { return method.valueOf.call(method); }; + })(method); + + value.toString = (function(method) { + return function() { return method.toString.call(method); }; + })(method); + } + this.prototype[property] = value; + } + + return this; + } + + return { + create: create, + Methods: { + addMethods: addMethods + } + }; +})(); +(function() { + + var _toString = Object.prototype.toString, + _hasOwnProperty = Object.prototype.hasOwnProperty, + NULL_TYPE = 'Null', + UNDEFINED_TYPE = 'Undefined', + BOOLEAN_TYPE = 'Boolean', + NUMBER_TYPE = 'Number', + STRING_TYPE = 'String', + OBJECT_TYPE = 'Object', + FUNCTION_CLASS = '[object Function]', + BOOLEAN_CLASS = '[object Boolean]', + NUMBER_CLASS = '[object Number]', + STRING_CLASS = '[object String]', + ARRAY_CLASS = '[object Array]', + DATE_CLASS = '[object Date]', + NATIVE_JSON_STRINGIFY_SUPPORT = window.JSON && + typeof JSON.stringify === 'function' && + JSON.stringify(0) === '0' && + typeof JSON.stringify(Prototype.K) === 'undefined'; + + + + var DONT_ENUMS = ['toString', 'toLocaleString', 'valueOf', + 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'constructor']; + + var IS_DONTENUM_BUGGY = (function(){ + for (var p in { toString: 1 }) { + if (p === 'toString') return false; + } + return true; + })(); + + function Type(o) { + switch(o) { + case null: return NULL_TYPE; + case (void 0): return UNDEFINED_TYPE; + } + var type = typeof o; + switch(type) { + case 'boolean': return BOOLEAN_TYPE; + case 'number': return NUMBER_TYPE; + case 'string': return STRING_TYPE; + } + return OBJECT_TYPE; + } + + function extend(destination, source) { + for (var property in source) + destination[property] = source[property]; + return destination; + } + + function inspect(object) { + try { + if (isUndefined(object)) return 'undefined'; + if (object === null) return 'null'; + return object.inspect ? object.inspect() : String(object); + } catch (e) { + if (e instanceof RangeError) return '...'; + throw e; + } + } + + function toJSON(value) { + return Str('', { '': value }, []); + } + + function Str(key, holder, stack) { + var value = holder[key]; + if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function') { + value = value.toJSON(key); + } + + var _class = _toString.call(value); + + switch (_class) { + case NUMBER_CLASS: + case BOOLEAN_CLASS: + case STRING_CLASS: + value = value.valueOf(); + } + + switch (value) { + case null: return 'null'; + case true: return 'true'; + case false: return 'false'; + } + + var type = typeof value; + switch (type) { + case 'string': + return value.inspect(true); + case 'number': + return isFinite(value) ? String(value) : 'null'; + case 'object': + + for (var i = 0, length = stack.length; i < length; i++) { + if (stack[i] === value) { + throw new TypeError("Cyclic reference to '" + value + "' in object"); + } + } + stack.push(value); + + var partial = []; + if (_class === ARRAY_CLASS) { + for (var i = 0, length = value.length; i < length; i++) { + var str = Str(i, value, stack); + partial.push(typeof str === 'undefined' ? 'null' : str); + } + partial = '[' + partial.join(',') + ']'; + } else { + var keys = Object.keys(value); + for (var i = 0, length = keys.length; i < length; i++) { + var key = keys[i], str = Str(key, value, stack); + if (typeof str !== "undefined") { + partial.push(key.inspect(true)+ ':' + str); + } + } + partial = '{' + partial.join(',') + '}'; + } + stack.pop(); + return partial; + } + } + + function stringify(object) { + return JSON.stringify(object); + } + + function toQueryString(object) { + return $H(object).toQueryString(); + } + + function toHTML(object) { + return object && object.toHTML ? object.toHTML() : String.interpret(object); + } + + function keys(object) { + if (Type(object) !== OBJECT_TYPE) { throw new TypeError(); } + var results = []; + for (var property in object) { + if (_hasOwnProperty.call(object, property)) + results.push(property); + } + + if (IS_DONTENUM_BUGGY) { + for (var i = 0; property = DONT_ENUMS[i]; i++) { + if (_hasOwnProperty.call(object, property)) + results.push(property); + } + } + + return results; + } + + function values(object) { + var results = []; + for (var property in object) + results.push(object[property]); + return results; + } + + function clone(object) { + return extend({ }, object); + } + + function isElement(object) { + return !!(object && object.nodeType == 1); + } + + function isArray(object) { + return _toString.call(object) === ARRAY_CLASS; + } + + var hasNativeIsArray = (typeof Array.isArray == 'function') + && Array.isArray([]) && !Array.isArray({}); + + if (hasNativeIsArray) { + isArray = Array.isArray; + } + + function isHash(object) { + return object instanceof Hash; + } + + function isFunction(object) { + return _toString.call(object) === FUNCTION_CLASS; + } + + function isString(object) { + return _toString.call(object) === STRING_CLASS; + } + + function isNumber(object) { + return _toString.call(object) === NUMBER_CLASS; + } + + function isDate(object) { + return _toString.call(object) === DATE_CLASS; + } + + function isUndefined(object) { + return typeof object === "undefined"; + } + + extend(Object, { + extend: extend, + inspect: inspect, + toJSON: NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON, + toQueryString: toQueryString, + toHTML: toHTML, + keys: Object.keys || keys, + values: values, + clone: clone, + isElement: isElement, + isArray: isArray, + isHash: isHash, + isFunction: isFunction, + isString: isString, + isNumber: isNumber, + isDate: isDate, + isUndefined: isUndefined + }); +})(); +Object.extend(Function.prototype, (function() { + var slice = Array.prototype.slice; + + function update(array, args) { + var arrayLength = array.length, length = args.length; + while (length--) array[arrayLength + length] = args[length]; + return array; + } + + function merge(array, args) { + array = slice.call(array, 0); + return update(array, args); + } + + function argumentNames() { + var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1] + .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '') + .replace(/\s+/g, '').split(','); + return names.length == 1 && !names[0] ? [] : names; + } + + + function bind(context) { + if (arguments.length < 2 && Object.isUndefined(arguments[0])) + return this; + + if (!Object.isFunction(this)) + throw new TypeError("The object is not callable."); + + var nop = function() {}; + var __method = this, args = slice.call(arguments, 1); + + var bound = function() { + var a = merge(args, arguments); + var c = this instanceof bound ? this : context; + return __method.apply(c, a); + }; + + nop.prototype = this.prototype; + bound.prototype = new nop(); + + return bound; + } + + function bindAsEventListener(context) { + var __method = this, args = slice.call(arguments, 1); + return function(event) { + var a = update([event || window.event], args); + return __method.apply(context, a); + } + } + + function curry() { + if (!arguments.length) return this; + var __method = this, args = slice.call(arguments, 0); + return function() { + var a = merge(args, arguments); + return __method.apply(this, a); + } + } + + function delay(timeout) { + var __method = this, args = slice.call(arguments, 1); + timeout = timeout * 1000; + return window.setTimeout(function() { + return __method.apply(__method, args); + }, timeout); + } + + function defer() { + var args = update([0.01], arguments); + return this.delay.apply(this, args); + } + + function wrap(wrapper) { + var __method = this; + return function() { + var a = update([__method.bind(this)], arguments); + return wrapper.apply(this, a); + } + } + + function methodize() { + if (this._methodized) return this._methodized; + var __method = this; + return this._methodized = function() { + var a = update([this], arguments); + return __method.apply(null, a); + }; + } + + var extensions = { + argumentNames: argumentNames, + bindAsEventListener: bindAsEventListener, + curry: curry, + delay: delay, + defer: defer, + wrap: wrap, + methodize: methodize + }; + + if (!Function.prototype.bind) + extensions.bind = bind; + + return extensions; +})()); + + + +(function(proto) { + + + function toISOString() { + return this.getUTCFullYear() + '-' + + (this.getUTCMonth() + 1).toPaddedString(2) + '-' + + this.getUTCDate().toPaddedString(2) + 'T' + + this.getUTCHours().toPaddedString(2) + ':' + + this.getUTCMinutes().toPaddedString(2) + ':' + + this.getUTCSeconds().toPaddedString(2) + 'Z'; + } + + + function toJSON() { + return this.toISOString(); + } + + if (!proto.toISOString) proto.toISOString = toISOString; + if (!proto.toJSON) proto.toJSON = toJSON; + +})(Date.prototype); + + +RegExp.prototype.match = RegExp.prototype.test; + +RegExp.escape = function(str) { + return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1'); +}; +var PeriodicalExecuter = Class.create({ + initialize: function(callback, frequency) { + this.callback = callback; + this.frequency = frequency; + this.currentlyExecuting = false; + + this.registerCallback(); + }, + + registerCallback: function() { + this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); + }, + + execute: function() { + this.callback(this); + }, + + stop: function() { + if (!this.timer) return; + clearInterval(this.timer); + this.timer = null; + }, + + onTimerEvent: function() { + if (!this.currentlyExecuting) { + try { + this.currentlyExecuting = true; + this.execute(); + this.currentlyExecuting = false; + } catch(e) { + this.currentlyExecuting = false; + throw e; + } + } + } +}); +Object.extend(String, { + interpret: function(value) { + return value == null ? '' : String(value); + }, + specialChar: { + '\b': '\\b', + '\t': '\\t', + '\n': '\\n', + '\f': '\\f', + '\r': '\\r', + '\\': '\\\\' + } +}); + +Object.extend(String.prototype, (function() { + var NATIVE_JSON_PARSE_SUPPORT = window.JSON && + typeof JSON.parse === 'function' && + JSON.parse('{"test": true}').test; + + function prepareReplacement(replacement) { + if (Object.isFunction(replacement)) return replacement; + var template = new Template(replacement); + return function(match) { return template.evaluate(match) }; + } + + function isNonEmptyRegExp(regexp) { + return regexp.source && regexp.source !== '(?:)'; + } + + + function gsub(pattern, replacement) { + var result = '', source = this, match; + replacement = prepareReplacement(replacement); + + if (Object.isString(pattern)) + pattern = RegExp.escape(pattern); + + if (!(pattern.length || isNonEmptyRegExp(pattern))) { + replacement = replacement(''); + return replacement + source.split('').join(replacement) + replacement; + } + + while (source.length > 0) { + match = source.match(pattern) + if (match && match[0].length > 0) { + result += source.slice(0, match.index); + result += String.interpret(replacement(match)); + source = source.slice(match.index + match[0].length); + } else { + result += source, source = ''; + } + } + return result; + } + + function sub(pattern, replacement, count) { + replacement = prepareReplacement(replacement); + count = Object.isUndefined(count) ? 1 : count; + + return this.gsub(pattern, function(match) { + if (--count < 0) return match[0]; + return replacement(match); + }); + } + + function scan(pattern, iterator) { + this.gsub(pattern, iterator); + return String(this); + } + + function truncate(length, truncation) { + length = length || 30; + truncation = Object.isUndefined(truncation) ? '...' : truncation; + return this.length > length ? + this.slice(0, length - truncation.length) + truncation : String(this); + } + + function strip() { + return this.replace(/^\s+/, '').replace(/\s+$/, ''); + } + + function stripTags() { + return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?(\/)?>|<\/\w+>/gi, ''); + } + + function stripScripts() { + return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), ''); + } + + function extractScripts() { + var matchAll = new RegExp(Prototype.ScriptFragment, 'img'), + matchOne = new RegExp(Prototype.ScriptFragment, 'im'); + return (this.match(matchAll) || []).map(function(scriptTag) { + return (scriptTag.match(matchOne) || ['', ''])[1]; + }); + } + + function evalScripts() { + return this.extractScripts().map(function(script) { return eval(script); }); + } + + function escapeHTML() { + return this.replace(/&/g,'&').replace(//g,'>'); + } + + function unescapeHTML() { + return this.stripTags().replace(/</g,'<').replace(/>/g,'>').replace(/&/g,'&'); + } + + + function toQueryParams(separator) { + var match = this.strip().match(/([^?#]*)(#.*)?$/); + if (!match) return { }; + + return match[1].split(separator || '&').inject({ }, function(hash, pair) { + if ((pair = pair.split('='))[0]) { + var key = decodeURIComponent(pair.shift()), + value = pair.length > 1 ? pair.join('=') : pair[0]; + + if (value != undefined) { + value = value.gsub('+', ' '); + value = decodeURIComponent(value); + } + + if (key in hash) { + if (!Object.isArray(hash[key])) hash[key] = [hash[key]]; + hash[key].push(value); + } + else hash[key] = value; + } + return hash; + }); + } + + function toArray() { + return this.split(''); + } + + function succ() { + return this.slice(0, this.length - 1) + + String.fromCharCode(this.charCodeAt(this.length - 1) + 1); + } + + function times(count) { + return count < 1 ? '' : new Array(count + 1).join(this); + } + + function camelize() { + return this.replace(/-+(.)?/g, function(match, chr) { + return chr ? chr.toUpperCase() : ''; + }); + } + + function capitalize() { + return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase(); + } + + function underscore() { + return this.replace(/::/g, '/') + .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2') + .replace(/([a-z\d])([A-Z])/g, '$1_$2') + .replace(/-/g, '_') + .toLowerCase(); + } + + function dasherize() { + return this.replace(/_/g, '-'); + } + + function inspect(useDoubleQuotes) { + var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) { + if (character in String.specialChar) { + return String.specialChar[character]; + } + return '\\u00' + character.charCodeAt().toPaddedString(2, 16); + }); + if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"'; + return "'" + escapedString.replace(/'/g, '\\\'') + "'"; + } + + function unfilterJSON(filter) { + return this.replace(filter || Prototype.JSONFilter, '$1'); + } + + function isJSON() { + var str = this; + if (str.blank()) return false; + str = str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@'); + str = str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']'); + str = str.replace(/(?:^|:|,)(?:\s*\[)+/g, ''); + return (/^[\],:{}\s]*$/).test(str); + } + + function evalJSON(sanitize) { + var json = this.unfilterJSON(), + cx = /[\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff\u0000]/g; + if (cx.test(json)) { + json = json.replace(cx, function (a) { + return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); + }); + } + try { + if (!sanitize || json.isJSON()) return eval('(' + json + ')'); + } catch (e) { } + throw new SyntaxError('Badly formed JSON string: ' + this.inspect()); + } + + function parseJSON() { + var json = this.unfilterJSON(); + return JSON.parse(json); + } + + function include(pattern) { + return this.indexOf(pattern) > -1; + } + + function startsWith(pattern, position) { + position = Object.isNumber(position) ? position : 0; + return this.lastIndexOf(pattern, position) === position; + } + + function endsWith(pattern, position) { + pattern = String(pattern); + position = Object.isNumber(position) ? position : this.length; + if (position < 0) position = 0; + if (position > this.length) position = this.length; + var d = position - pattern.length; + return d >= 0 && this.indexOf(pattern, d) === d; + } + + function empty() { + return this == ''; + } + + function blank() { + return /^\s*$/.test(this); + } + + function interpolate(object, pattern) { + return new Template(this, pattern).evaluate(object); + } + + return { + gsub: gsub, + sub: sub, + scan: scan, + truncate: truncate, + strip: String.prototype.trim || strip, + stripTags: stripTags, + stripScripts: stripScripts, + extractScripts: extractScripts, + evalScripts: evalScripts, + escapeHTML: escapeHTML, + unescapeHTML: unescapeHTML, + toQueryParams: toQueryParams, + parseQuery: toQueryParams, + toArray: toArray, + succ: succ, + times: times, + camelize: camelize, + capitalize: capitalize, + underscore: underscore, + dasherize: dasherize, + inspect: inspect, + unfilterJSON: unfilterJSON, + isJSON: isJSON, + evalJSON: NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON, + include: include, + startsWith: String.prototype.startsWith || startsWith, + endsWith: String.prototype.endsWith || endsWith, + empty: empty, + blank: blank, + interpolate: interpolate + }; +})()); + +var Template = Class.create({ + initialize: function(template, pattern) { + this.template = template.toString(); + this.pattern = pattern || Template.Pattern; + }, + + evaluate: function(object) { + if (object && Object.isFunction(object.toTemplateReplacements)) + object = object.toTemplateReplacements(); + + return this.template.gsub(this.pattern, function(match) { + if (object == null) return (match[1] + ''); + + var before = match[1] || ''; + if (before == '\\') return match[2]; + + var ctx = object, expr = match[3], + pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/; + + match = pattern.exec(expr); + if (match == null) return before; + + while (match != null) { + var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1]; + ctx = ctx[comp]; + if (null == ctx || '' == match[3]) break; + expr = expr.substring('[' == match[3] ? match[1].length : match[0].length); + match = pattern.exec(expr); + } + + return before + String.interpret(ctx); + }); + } +}); +Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/; + +var $break = { }; + +var Enumerable = (function() { + function each(iterator, context) { + try { + this._each(iterator, context); + } catch (e) { + if (e != $break) throw e; + } + return this; + } + + function eachSlice(number, iterator, context) { + var index = -number, slices = [], array = this.toArray(); + if (number < 1) return array; + while ((index += number) < array.length) + slices.push(array.slice(index, index+number)); + return slices.collect(iterator, context); + } + + function all(iterator, context) { + iterator = iterator || Prototype.K; + var result = true; + this.each(function(value, index) { + result = result && !!iterator.call(context, value, index, this); + if (!result) throw $break; + }, this); + return result; + } + + function any(iterator, context) { + iterator = iterator || Prototype.K; + var result = false; + this.each(function(value, index) { + if (result = !!iterator.call(context, value, index, this)) + throw $break; + }, this); + return result; + } + + function collect(iterator, context) { + iterator = iterator || Prototype.K; + var results = []; + this.each(function(value, index) { + results.push(iterator.call(context, value, index, this)); + }, this); + return results; + } + + function detect(iterator, context) { + var result; + this.each(function(value, index) { + if (iterator.call(context, value, index, this)) { + result = value; + throw $break; + } + }, this); + return result; + } + + function findAll(iterator, context) { + var results = []; + this.each(function(value, index) { + if (iterator.call(context, value, index, this)) + results.push(value); + }, this); + return results; + } + + function grep(filter, iterator, context) { + iterator = iterator || Prototype.K; + var results = []; + + if (Object.isString(filter)) + filter = new RegExp(RegExp.escape(filter)); + + this.each(function(value, index) { + if (filter.match(value)) + results.push(iterator.call(context, value, index, this)); + }, this); + return results; + } + + function include(object) { + if (Object.isFunction(this.indexOf) && this.indexOf(object) != -1) + return true; + + var found = false; + this.each(function(value) { + if (value == object) { + found = true; + throw $break; + } + }); + return found; + } + + function inGroupsOf(number, fillWith) { + fillWith = Object.isUndefined(fillWith) ? null : fillWith; + return this.eachSlice(number, function(slice) { + while(slice.length < number) slice.push(fillWith); + return slice; + }); + } + + function inject(memo, iterator, context) { + this.each(function(value, index) { + memo = iterator.call(context, memo, value, index, this); + }, this); + return memo; + } + + function invoke(method) { + var args = $A(arguments).slice(1); + return this.map(function(value) { + return value[method].apply(value, args); + }); + } + + function max(iterator, context) { + iterator = iterator || Prototype.K; + var result; + this.each(function(value, index) { + value = iterator.call(context, value, index, this); + if (result == null || value >= result) + result = value; + }, this); + return result; + } + + function min(iterator, context) { + iterator = iterator || Prototype.K; + var result; + this.each(function(value, index) { + value = iterator.call(context, value, index, this); + if (result == null || value < result) + result = value; + }, this); + return result; + } + + function partition(iterator, context) { + iterator = iterator || Prototype.K; + var trues = [], falses = []; + this.each(function(value, index) { + (iterator.call(context, value, index, this) ? + trues : falses).push(value); + }, this); + return [trues, falses]; + } + + function pluck(property) { + var results = []; + this.each(function(value) { + results.push(value[property]); + }); + return results; + } + + function reject(iterator, context) { + var results = []; + this.each(function(value, index) { + if (!iterator.call(context, value, index, this)) + results.push(value); + }, this); + return results; + } + + function sortBy(iterator, context) { + return this.map(function(value, index) { + return { + value: value, + criteria: iterator.call(context, value, index, this) + }; + }, this).sort(function(left, right) { + var a = left.criteria, b = right.criteria; + return a < b ? -1 : a > b ? 1 : 0; + }).pluck('value'); + } + + function toArray() { + return this.map(); + } + + function zip() { + var iterator = Prototype.K, args = $A(arguments); + if (Object.isFunction(args.last())) + iterator = args.pop(); + + var collections = [this].concat(args).map($A); + return this.map(function(value, index) { + return iterator(collections.pluck(index)); + }); + } + + function size() { + return this.toArray().length; + } + + function inspect() { + return '#'; + } + + + + + + + + + + return { + each: each, + eachSlice: eachSlice, + all: all, + every: all, + any: any, + some: any, + collect: collect, + map: collect, + detect: detect, + findAll: findAll, + select: findAll, + filter: findAll, + grep: grep, + include: include, + member: include, + inGroupsOf: inGroupsOf, + inject: inject, + invoke: invoke, + max: max, + min: min, + partition: partition, + pluck: pluck, + reject: reject, + sortBy: sortBy, + toArray: toArray, + entries: toArray, + zip: zip, + size: size, + inspect: inspect, + find: detect + }; +})(); + +function $A(iterable) { + if (!iterable) return []; + if ('toArray' in Object(iterable)) return iterable.toArray(); + var length = iterable.length || 0, results = new Array(length); + while (length--) results[length] = iterable[length]; + return results; +} + + +function $w(string) { + if (!Object.isString(string)) return []; + string = string.strip(); + return string ? string.split(/\s+/) : []; +} + +Array.from = $A; + + +(function() { + var arrayProto = Array.prototype, + slice = arrayProto.slice, + _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available + + function each(iterator, context) { + for (var i = 0, length = this.length >>> 0; i < length; i++) { + if (i in this) iterator.call(context, this[i], i, this); + } + } + if (!_each) _each = each; + + function clear() { + this.length = 0; + return this; + } + + function first() { + return this[0]; + } + + function last() { + return this[this.length - 1]; + } + + function compact() { + return this.select(function(value) { + return value != null; + }); + } + + function flatten() { + return this.inject([], function(array, value) { + if (Object.isArray(value)) + return array.concat(value.flatten()); + array.push(value); + return array; + }); + } + + function without() { + var values = slice.call(arguments, 0); + return this.select(function(value) { + return !values.include(value); + }); + } + + function reverse(inline) { + return (inline === false ? this.toArray() : this)._reverse(); + } + + function uniq(sorted) { + return this.inject([], function(array, value, index) { + if (0 == index || (sorted ? array.last() != value : !array.include(value))) + array.push(value); + return array; + }); + } + + function intersect(array) { + return this.uniq().findAll(function(item) { + return array.indexOf(item) !== -1; + }); + } + + + function clone() { + return slice.call(this, 0); + } + + function size() { + return this.length; + } + + function inspect() { + return '[' + this.map(Object.inspect).join(', ') + ']'; + } + + function indexOf(item, i) { + if (this == null) throw new TypeError(); + + var array = Object(this), length = array.length >>> 0; + if (length === 0) return -1; + + i = Number(i); + if (isNaN(i)) { + i = 0; + } else if (i !== 0 && isFinite(i)) { + i = (i > 0 ? 1 : -1) * Math.floor(Math.abs(i)); + } + + if (i > length) return -1; + + var k = i >= 0 ? i : Math.max(length - Math.abs(i), 0); + for (; k < length; k++) + if (k in array && array[k] === item) return k; + return -1; + } + + + function lastIndexOf(item, i) { + if (this == null) throw new TypeError(); + + var array = Object(this), length = array.length >>> 0; + if (length === 0) return -1; + + if (!Object.isUndefined(i)) { + i = Number(i); + if (isNaN(i)) { + i = 0; + } else if (i !== 0 && isFinite(i)) { + i = (i > 0 ? 1 : -1) * Math.floor(Math.abs(i)); + } + } else { + i = length; + } + + var k = i >= 0 ? Math.min(i, length - 1) : + length - Math.abs(i); + + for (; k >= 0; k--) + if (k in array && array[k] === item) return k; + return -1; + } + + function concat(_) { + var array = [], items = slice.call(arguments, 0), item, n = 0; + items.unshift(this); + for (var i = 0, length = items.length; i < length; i++) { + item = items[i]; + if (Object.isArray(item) && !('callee' in item)) { + for (var j = 0, arrayLength = item.length; j < arrayLength; j++) { + if (j in item) array[n] = item[j]; + n++; + } + } else { + array[n++] = item; + } + } + array.length = n; + return array; + } + + + function wrapNative(method) { + return function() { + if (arguments.length === 0) { + return method.call(this, Prototype.K); + } else if (arguments[0] === undefined) { + var args = slice.call(arguments, 1); + args.unshift(Prototype.K); + return method.apply(this, args); + } else { + return method.apply(this, arguments); + } + }; + } + + + function map(iterator) { + if (this == null) throw new TypeError(); + iterator = iterator || Prototype.K; + + var object = Object(this); + var results = [], context = arguments[1], n = 0; + + for (var i = 0, length = object.length >>> 0; i < length; i++) { + if (i in object) { + results[n] = iterator.call(context, object[i], i, object); + } + n++; + } + results.length = n; + return results; + } + + if (arrayProto.map) { + map = wrapNative(Array.prototype.map); + } + + function filter(iterator) { + if (this == null || !Object.isFunction(iterator)) + throw new TypeError(); + + var object = Object(this); + var results = [], context = arguments[1], value; + + for (var i = 0, length = object.length >>> 0; i < length; i++) { + if (i in object) { + value = object[i]; + if (iterator.call(context, value, i, object)) { + results.push(value); + } + } + } + return results; + } + + if (arrayProto.filter) { + filter = Array.prototype.filter; + } + + function some(iterator) { + if (this == null) throw new TypeError(); + iterator = iterator || Prototype.K; + var context = arguments[1]; + + var object = Object(this); + for (var i = 0, length = object.length >>> 0; i < length; i++) { + if (i in object && iterator.call(context, object[i], i, object)) { + return true; + } + } + + return false; + } + + if (arrayProto.some) { + some = wrapNative(Array.prototype.some); + } + + function every(iterator) { + if (this == null) throw new TypeError(); + iterator = iterator || Prototype.K; + var context = arguments[1]; + + var object = Object(this); + for (var i = 0, length = object.length >>> 0; i < length; i++) { + if (i in object && !iterator.call(context, object[i], i, object)) { + return false; + } + } + + return true; + } + + if (arrayProto.every) { + every = wrapNative(Array.prototype.every); + } + + + Object.extend(arrayProto, Enumerable); + + if (arrayProto.entries === Enumerable.entries) { + delete arrayProto.entries; + } + + if (!arrayProto._reverse) + arrayProto._reverse = arrayProto.reverse; + + Object.extend(arrayProto, { + _each: _each, + + map: map, + collect: map, + select: filter, + filter: filter, + findAll: filter, + some: some, + any: some, + every: every, + all: every, + + clear: clear, + first: first, + last: last, + compact: compact, + flatten: flatten, + without: without, + reverse: reverse, + uniq: uniq, + intersect: intersect, + clone: clone, + toArray: clone, + size: size, + inspect: inspect + }); + + var CONCAT_ARGUMENTS_BUGGY = (function() { + return [].concat(arguments)[0][0] !== 1; + })(1,2); + + if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat; + + if (!arrayProto.indexOf) arrayProto.indexOf = indexOf; + if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf; +})(); +function $H(object) { + return new Hash(object); +}; + +var Hash = Class.create(Enumerable, (function() { + function initialize(object) { + this._object = Object.isHash(object) ? object.toObject() : Object.clone(object); + } + + + function _each(iterator, context) { + var i = 0; + for (var key in this._object) { + var value = this._object[key], pair = [key, value]; + pair.key = key; + pair.value = value; + iterator.call(context, pair, i); + i++; + } + } + + function set(key, value) { + return this._object[key] = value; + } + + function get(key) { + if (this._object[key] !== Object.prototype[key]) + return this._object[key]; + } + + function unset(key) { + var value = this._object[key]; + delete this._object[key]; + return value; + } + + function toObject() { + return Object.clone(this._object); + } + + + + function keys() { + return this.pluck('key'); + } + + function values() { + return this.pluck('value'); + } + + function index(value) { + var match = this.detect(function(pair) { + return pair.value === value; + }); + return match && match.key; + } + + function merge(object) { + return this.clone().update(object); + } + + function update(object) { + return new Hash(object).inject(this, function(result, pair) { + result.set(pair.key, pair.value); + return result; + }); + } + + function toQueryPair(key, value) { + if (Object.isUndefined(value)) return key; + + value = String.interpret(value); + + value = value.gsub(/(\r)?\n/, '\r\n'); + value = encodeURIComponent(value); + value = value.gsub(/%20/, '+'); + return key + '=' + value; + } + + function toQueryString() { + return this.inject([], function(results, pair) { + var key = encodeURIComponent(pair.key), values = pair.value; + + if (values && typeof values == 'object') { + if (Object.isArray(values)) { + var queryValues = []; + for (var i = 0, len = values.length, value; i < len; i++) { + value = values[i]; + queryValues.push(toQueryPair(key, value)); + } + return results.concat(queryValues); + } + } else results.push(toQueryPair(key, values)); + return results; + }).join('&'); + } + + function inspect() { + return '#'; + } + + function clone() { + return new Hash(this); + } + + return { + initialize: initialize, + _each: _each, + set: set, + get: get, + unset: unset, + toObject: toObject, + toTemplateReplacements: toObject, + keys: keys, + values: values, + index: index, + merge: merge, + update: update, + toQueryString: toQueryString, + inspect: inspect, + toJSON: toObject, + clone: clone + }; +})()); + +Hash.from = $H; +Object.extend(Number.prototype, (function() { + function toColorPart() { + return this.toPaddedString(2, 16); + } + + function succ() { + return this + 1; + } + + function times(iterator, context) { + $R(0, this, true).each(iterator, context); + return this; + } + + function toPaddedString(length, radix) { + var string = this.toString(radix || 10); + return '0'.times(length - string.length) + string; + } + + function abs() { + return Math.abs(this); + } + + function round() { + return Math.round(this); + } + + function ceil() { + return Math.ceil(this); + } + + function floor() { + return Math.floor(this); + } + + return { + toColorPart: toColorPart, + succ: succ, + times: times, + toPaddedString: toPaddedString, + abs: abs, + round: round, + ceil: ceil, + floor: floor + }; +})()); + +function $R(start, end, exclusive) { + return new ObjectRange(start, end, exclusive); +} + +var ObjectRange = Class.create(Enumerable, (function() { + function initialize(start, end, exclusive) { + this.start = start; + this.end = end; + this.exclusive = exclusive; + } + + function _each(iterator, context) { + var value = this.start, i; + for (i = 0; this.include(value); i++) { + iterator.call(context, value, i); + value = value.succ(); + } + } + + function include(value) { + if (value < this.start) + return false; + if (this.exclusive) + return value < this.end; + return value <= this.end; + } + + return { + initialize: initialize, + _each: _each, + include: include + }; +})()); + + + +var Abstract = { }; + + +var Try = { + these: function() { + var returnValue; + + for (var i = 0, length = arguments.length; i < length; i++) { + var lambda = arguments[i]; + try { + returnValue = lambda(); + break; + } catch (e) { } + } + + return returnValue; + } +}; + +var Ajax = { + getTransport: function() { + return Try.these( + function() {return new XMLHttpRequest()}, + function() {return new ActiveXObject('Msxml2.XMLHTTP')}, + function() {return new ActiveXObject('Microsoft.XMLHTTP')} + ) || false; + }, + + activeRequestCount: 0 +}; + +Ajax.Responders = { + responders: [], + + _each: function(iterator, context) { + this.responders._each(iterator, context); + }, + + register: function(responder) { + if (!this.include(responder)) + this.responders.push(responder); + }, + + unregister: function(responder) { + this.responders = this.responders.without(responder); + }, + + dispatch: function(callback, request, transport, json) { + this.each(function(responder) { + if (Object.isFunction(responder[callback])) { + try { + responder[callback].apply(responder, [request, transport, json]); + } catch (e) { } + } + }); + } +}; + +Object.extend(Ajax.Responders, Enumerable); + +Ajax.Responders.register({ + onCreate: function() { Ajax.activeRequestCount++ }, + onComplete: function() { Ajax.activeRequestCount-- } +}); +Ajax.Base = Class.create({ + initialize: function(options) { + this.options = { + method: 'post', + asynchronous: true, + contentType: 'application/x-www-form-urlencoded', + encoding: 'UTF-8', + parameters: '', + evalJSON: true, + evalJS: true + }; + Object.extend(this.options, options || { }); + + this.options.method = this.options.method.toLowerCase(); + + if (Object.isHash(this.options.parameters)) + this.options.parameters = this.options.parameters.toObject(); + } +}); +Ajax.Request = Class.create(Ajax.Base, { + _complete: false, + + initialize: function($super, url, options) { + $super(options); + this.transport = Ajax.getTransport(); + this.request(url); + }, + + request: function(url) { + this.url = url; + this.method = this.options.method; + var params = Object.isString(this.options.parameters) ? + this.options.parameters : + Object.toQueryString(this.options.parameters); + + if (!['get', 'post'].include(this.method)) { + params += (params ? '&' : '') + "_method=" + this.method; + this.method = 'post'; + } + + if (params && this.method === 'get') { + this.url += (this.url.include('?') ? '&' : '?') + params; + } + + this.parameters = params.toQueryParams(); + + try { + var response = new Ajax.Response(this); + if (this.options.onCreate) this.options.onCreate(response); + Ajax.Responders.dispatch('onCreate', this, response); + + this.transport.open(this.method.toUpperCase(), this.url, + this.options.asynchronous); + + if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1); + + this.transport.onreadystatechange = this.onStateChange.bind(this); + this.setRequestHeaders(); + + this.body = this.method == 'post' ? (this.options.postBody || params) : null; + this.transport.send(this.body); + + /* Force Firefox to handle ready state 4 for synchronous requests */ + if (!this.options.asynchronous && this.transport.overrideMimeType) + this.onStateChange(); + + } + catch (e) { + this.dispatchException(e); + } + }, + + onStateChange: function() { + var readyState = this.transport.readyState; + if (readyState > 1 && !((readyState == 4) && this._complete)) + this.respondToReadyState(this.transport.readyState); + }, + + setRequestHeaders: function() { + var headers = { + 'X-Requested-With': 'XMLHttpRequest', + 'X-Prototype-Version': Prototype.Version, + 'Accept': 'text/javascript, text/html, application/xml, text/xml, */*' + }; + + if (this.method == 'post') { + headers['Content-type'] = this.options.contentType + + (this.options.encoding ? '; charset=' + this.options.encoding : ''); + + /* Force "Connection: close" for older Mozilla browsers to work + * around a bug where XMLHttpRequest sends an incorrect + * Content-length header. See Mozilla Bugzilla #246651. + */ + if (this.transport.overrideMimeType && + (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005) + headers['Connection'] = 'close'; + } + + if (typeof this.options.requestHeaders == 'object') { + var extras = this.options.requestHeaders; + + if (Object.isFunction(extras.push)) + for (var i = 0, length = extras.length; i < length; i += 2) + headers[extras[i]] = extras[i+1]; + else + $H(extras).each(function(pair) { headers[pair.key] = pair.value }); + } + + for (var name in headers) + if (headers[name] != null) + this.transport.setRequestHeader(name, headers[name]); + }, + + success: function() { + var status = this.getStatus(); + return !status || (status >= 200 && status < 300) || status == 304; + }, + + getStatus: function() { + try { + if (this.transport.status === 1223) return 204; + return this.transport.status || 0; + } catch (e) { return 0 } + }, + + respondToReadyState: function(readyState) { + var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this); + + if (state == 'Complete') { + try { + this._complete = true; + (this.options['on' + response.status] + || this.options['on' + (this.success() ? 'Success' : 'Failure')] + || Prototype.emptyFunction)(response, response.headerJSON); + } catch (e) { + this.dispatchException(e); + } + + var contentType = response.getHeader('Content-type'); + if (this.options.evalJS == 'force' + || (this.options.evalJS && this.isSameOrigin() && contentType + && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i))) + this.evalResponse(); + } + + try { + (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON); + Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON); + } catch (e) { + this.dispatchException(e); + } + + if (state == 'Complete') { + this.transport.onreadystatechange = Prototype.emptyFunction; + } + }, + + isSameOrigin: function() { + var m = this.url.match(/^\s*https?:\/\/[^\/]*/); + return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({ + protocol: location.protocol, + domain: document.domain, + port: location.port ? ':' + location.port : '' + })); + }, + + getHeader: function(name) { + try { + return this.transport.getResponseHeader(name) || null; + } catch (e) { return null; } + }, + + evalResponse: function() { + try { + return eval((this.transport.responseText || '').unfilterJSON()); + } catch (e) { + this.dispatchException(e); + } + }, + + dispatchException: function(exception) { + (this.options.onException || Prototype.emptyFunction)(this, exception); + Ajax.Responders.dispatch('onException', this, exception); + } +}); + +Ajax.Request.Events = + ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete']; + + + + + + + + +Ajax.Response = Class.create({ + initialize: function(request){ + this.request = request; + var transport = this.transport = request.transport, + readyState = this.readyState = transport.readyState; + + if ((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) { + this.status = this.getStatus(); + this.statusText = this.getStatusText(); + this.responseText = String.interpret(transport.responseText); + this.headerJSON = this._getHeaderJSON(); + } + + if (readyState == 4) { + var xml = transport.responseXML; + this.responseXML = Object.isUndefined(xml) ? null : xml; + this.responseJSON = this._getResponseJSON(); + } + }, + + status: 0, + + statusText: '', + + getStatus: Ajax.Request.prototype.getStatus, + + getStatusText: function() { + try { + return this.transport.statusText || ''; + } catch (e) { return '' } + }, + + getHeader: Ajax.Request.prototype.getHeader, + + getAllHeaders: function() { + try { + return this.getAllResponseHeaders(); + } catch (e) { return null } + }, + + getResponseHeader: function(name) { + return this.transport.getResponseHeader(name); + }, + + getAllResponseHeaders: function() { + return this.transport.getAllResponseHeaders(); + }, + + _getHeaderJSON: function() { + var json = this.getHeader('X-JSON'); + if (!json) return null; + + try { + json = decodeURIComponent(escape(json)); + } catch(e) { + } + + try { + return json.evalJSON(this.request.options.sanitizeJSON || + !this.request.isSameOrigin()); + } catch (e) { + this.request.dispatchException(e); + } + }, + + _getResponseJSON: function() { + var options = this.request.options; + if (!options.evalJSON || (options.evalJSON != 'force' && + !(this.getHeader('Content-type') || '').include('application/json')) || + this.responseText.blank()) + return null; + try { + return this.responseText.evalJSON(options.sanitizeJSON || + !this.request.isSameOrigin()); + } catch (e) { + this.request.dispatchException(e); + } + } +}); + +Ajax.Updater = Class.create(Ajax.Request, { + initialize: function($super, container, url, options) { + this.container = { + success: (container.success || container), + failure: (container.failure || (container.success ? null : container)) + }; + + options = Object.clone(options); + var onComplete = options.onComplete; + options.onComplete = (function(response, json) { + this.updateContent(response.responseText); + if (Object.isFunction(onComplete)) onComplete(response, json); + }).bind(this); + + $super(url, options); + }, + + updateContent: function(responseText) { + var receiver = this.container[this.success() ? 'success' : 'failure'], + options = this.options; + + if (!options.evalScripts) responseText = responseText.stripScripts(); + + if (receiver = $(receiver)) { + if (options.insertion) { + if (Object.isString(options.insertion)) { + var insertion = { }; insertion[options.insertion] = responseText; + receiver.insert(insertion); + } + else options.insertion(receiver, responseText); + } + else receiver.update(responseText); + } + } +}); + +Ajax.PeriodicalUpdater = Class.create(Ajax.Base, { + initialize: function($super, container, url, options) { + $super(options); + this.onComplete = this.options.onComplete; + + this.frequency = (this.options.frequency || 2); + this.decay = (this.options.decay || 1); + + this.updater = { }; + this.container = container; + this.url = url; + + this.start(); + }, + + start: function() { + this.options.onComplete = this.updateComplete.bind(this); + this.onTimerEvent(); + }, + + stop: function() { + this.updater.options.onComplete = undefined; + clearTimeout(this.timer); + (this.onComplete || Prototype.emptyFunction).apply(this, arguments); + }, + + updateComplete: function(response) { + if (this.options.decay) { + this.decay = (response.responseText == this.lastText ? + this.decay * this.options.decay : 1); + + this.lastText = response.responseText; + } + this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency); + }, + + onTimerEvent: function() { + this.updater = new Ajax.Updater(this.container, this.url, this.options); + } +}); + +(function(GLOBAL) { + + var UNDEFINED; + var SLICE = Array.prototype.slice; + + var DIV = document.createElement('div'); + + + function $(element) { + if (arguments.length > 1) { + for (var i = 0, elements = [], length = arguments.length; i < length; i++) + elements.push($(arguments[i])); + return elements; + } + + if (Object.isString(element)) + element = document.getElementById(element); + return Element.extend(element); + } + + GLOBAL.$ = $; + + + if (!GLOBAL.Node) GLOBAL.Node = {}; + + if (!GLOBAL.Node.ELEMENT_NODE) { + Object.extend(GLOBAL.Node, { + ELEMENT_NODE: 1, + ATTRIBUTE_NODE: 2, + TEXT_NODE: 3, + CDATA_SECTION_NODE: 4, + ENTITY_REFERENCE_NODE: 5, + ENTITY_NODE: 6, + PROCESSING_INSTRUCTION_NODE: 7, + COMMENT_NODE: 8, + DOCUMENT_NODE: 9, + DOCUMENT_TYPE_NODE: 10, + DOCUMENT_FRAGMENT_NODE: 11, + NOTATION_NODE: 12 + }); + } + + var ELEMENT_CACHE = {}; + + function shouldUseCreationCache(tagName, attributes) { + if (tagName === 'select') return false; + if ('type' in attributes) return false; + return true; + } + + var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function(){ + try { + var el = document.createElement(''); + return el.tagName.toLowerCase() === 'input' && el.name === 'x'; + } + catch(err) { + return false; + } + })(); + + + var oldElement = GLOBAL.Element; + function Element(tagName, attributes) { + attributes = attributes || {}; + tagName = tagName.toLowerCase(); + + if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) { + tagName = '<' + tagName + ' name="' + attributes.name + '">'; + delete attributes.name; + return Element.writeAttribute(document.createElement(tagName), attributes); + } + + if (!ELEMENT_CACHE[tagName]) + ELEMENT_CACHE[tagName] = Element.extend(document.createElement(tagName)); + + var node = shouldUseCreationCache(tagName, attributes) ? + ELEMENT_CACHE[tagName].cloneNode(false) : document.createElement(tagName); + + return Element.writeAttribute(node, attributes); + } + + GLOBAL.Element = Element; + + Object.extend(GLOBAL.Element, oldElement || {}); + if (oldElement) GLOBAL.Element.prototype = oldElement.prototype; + + Element.Methods = { ByTag: {}, Simulated: {} }; + + var methods = {}; + + var INSPECT_ATTRIBUTES = { id: 'id', className: 'class' }; + function inspect(element) { + element = $(element); + var result = '<' + element.tagName.toLowerCase(); + + var attribute, value; + for (var property in INSPECT_ATTRIBUTES) { + attribute = INSPECT_ATTRIBUTES[property]; + value = (element[property] || '').toString(); + if (value) result += ' ' + attribute + '=' + value.inspect(true); + } + + return result + '>'; + } + + methods.inspect = inspect; + + + function visible(element) { + return $(element).getStyle('display') !== 'none'; + } + + function toggle(element, bool) { + element = $(element); + if (typeof bool !== 'boolean') + bool = !Element.visible(element); + Element[bool ? 'show' : 'hide'](element); + + return element; + } + + function hide(element) { + element = $(element); + element.style.display = 'none'; + return element; + } + + function show(element) { + element = $(element); + element.style.display = ''; + return element; + } + + + Object.extend(methods, { + visible: visible, + toggle: toggle, + hide: hide, + show: show + }); + + + function remove(element) { + element = $(element); + element.parentNode.removeChild(element); + return element; + } + + var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){ + var el = document.createElement("select"), + isBuggy = true; + el.innerHTML = ""; + if (el.options && el.options[0]) { + isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION"; + } + el = null; + return isBuggy; + })(); + + var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){ + try { + var el = document.createElement("table"); + if (el && el.tBodies) { + el.innerHTML = "test"; + var isBuggy = typeof el.tBodies[0] == "undefined"; + el = null; + return isBuggy; + } + } catch (e) { + return true; + } + })(); + + var LINK_ELEMENT_INNERHTML_BUGGY = (function() { + try { + var el = document.createElement('div'); + el.innerHTML = ""; + var isBuggy = (el.childNodes.length === 0); + el = null; + return isBuggy; + } catch(e) { + return true; + } + })(); + + var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY || + TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY; + + var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () { + var s = document.createElement("script"), + isBuggy = false; + try { + s.appendChild(document.createTextNode("")); + isBuggy = !s.firstChild || + s.firstChild && s.firstChild.nodeType !== 3; + } catch (e) { + isBuggy = true; + } + s = null; + return isBuggy; + })(); + + function update(element, content) { + element = $(element); + + var descendants = element.getElementsByTagName('*'), + i = descendants.length; + while (i--) purgeElement(descendants[i]); + + if (content && content.toElement) + content = content.toElement(); + + if (Object.isElement(content)) + return element.update().insert(content); + + + content = Object.toHTML(content); + var tagName = element.tagName.toUpperCase(); + + if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) { + element.text = content; + return element; + } + + if (ANY_INNERHTML_BUGGY) { + if (tagName in INSERTION_TRANSLATIONS.tags) { + while (element.firstChild) + element.removeChild(element.firstChild); + + var nodes = getContentFromAnonymousElement(tagName, content.stripScripts()); + for (var i = 0, node; node = nodes[i]; i++) + element.appendChild(node); + + } else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf(' -1) { + while (element.firstChild) + element.removeChild(element.firstChild); + + var nodes = getContentFromAnonymousElement(tagName, + content.stripScripts(), true); + + for (var i = 0, node; node = nodes[i]; i++) + element.appendChild(node); + } else { + element.innerHTML = content.stripScripts(); + } + } else { + element.innerHTML = content.stripScripts(); + } + + content.evalScripts.bind(content).defer(); + return element; + } + + function replace(element, content) { + element = $(element); + + if (content && content.toElement) { + content = content.toElement(); + } else if (!Object.isElement(content)) { + content = Object.toHTML(content); + var range = element.ownerDocument.createRange(); + range.selectNode(element); + content.evalScripts.bind(content).defer(); + content = range.createContextualFragment(content.stripScripts()); + } + + element.parentNode.replaceChild(content, element); + return element; + } + + var INSERTION_TRANSLATIONS = { + before: function(element, node) { + element.parentNode.insertBefore(node, element); + }, + top: function(element, node) { + element.insertBefore(node, element.firstChild); + }, + bottom: function(element, node) { + element.appendChild(node); + }, + after: function(element, node) { + element.parentNode.insertBefore(node, element.nextSibling); + }, + + tags: { + TABLE: ['', '
', 1], + TBODY: ['', '
', 2], + TR: ['', '
', 3], + TD: ['
', '
', 4], + SELECT: ['', 1] + } + }; + + var tags = INSERTION_TRANSLATIONS.tags; + + Object.extend(tags, { + THEAD: tags.TBODY, + TFOOT: tags.TBODY, + TH: tags.TD + }); + + function replace_IE(element, content) { + element = $(element); + if (content && content.toElement) + content = content.toElement(); + if (Object.isElement(content)) { + element.parentNode.replaceChild(content, element); + return element; + } + + content = Object.toHTML(content); + var parent = element.parentNode, tagName = parent.tagName.toUpperCase(); + + if (tagName in INSERTION_TRANSLATIONS.tags) { + var nextSibling = Element.next(element); + var fragments = getContentFromAnonymousElement( + tagName, content.stripScripts()); + + parent.removeChild(element); + + var iterator; + if (nextSibling) + iterator = function(node) { parent.insertBefore(node, nextSibling) }; + else + iterator = function(node) { parent.appendChild(node); } + + fragments.each(iterator); + } else { + element.outerHTML = content.stripScripts(); + } + + content.evalScripts.bind(content).defer(); + return element; + } + + if ('outerHTML' in document.documentElement) + replace = replace_IE; + + function isContent(content) { + if (Object.isUndefined(content) || content === null) return false; + + if (Object.isString(content) || Object.isNumber(content)) return true; + if (Object.isElement(content)) return true; + if (content.toElement || content.toHTML) return true; + + return false; + } + + function insertContentAt(element, content, position) { + position = position.toLowerCase(); + var method = INSERTION_TRANSLATIONS[position]; + + if (content && content.toElement) content = content.toElement(); + if (Object.isElement(content)) { + method(element, content); + return element; + } + + content = Object.toHTML(content); + var tagName = ((position === 'before' || position === 'after') ? + element.parentNode : element).tagName.toUpperCase(); + + var childNodes = getContentFromAnonymousElement(tagName, content.stripScripts()); + + if (position === 'top' || position === 'after') childNodes.reverse(); + + for (var i = 0, node; node = childNodes[i]; i++) + method(element, node); + + content.evalScripts.bind(content).defer(); + } + + function insert(element, insertions) { + element = $(element); + + if (isContent(insertions)) + insertions = { bottom: insertions }; + + for (var position in insertions) + insertContentAt(element, insertions[position], position); + + return element; + } + + function wrap(element, wrapper, attributes) { + element = $(element); + + if (Object.isElement(wrapper)) { + $(wrapper).writeAttribute(attributes || {}); + } else if (Object.isString(wrapper)) { + wrapper = new Element(wrapper, attributes); + } else { + wrapper = new Element('div', wrapper); + } + + if (element.parentNode) + element.parentNode.replaceChild(wrapper, element); + + wrapper.appendChild(element); + + return wrapper; + } + + function cleanWhitespace(element) { + element = $(element); + var node = element.firstChild; + + while (node) { + var nextNode = node.nextSibling; + if (node.nodeType === Node.TEXT_NODE && !/\S/.test(node.nodeValue)) + element.removeChild(node); + node = nextNode; + } + return element; + } + + function empty(element) { + return $(element).innerHTML.blank(); + } + + function getContentFromAnonymousElement(tagName, html, force) { + var t = INSERTION_TRANSLATIONS.tags[tagName], div = DIV; + + var workaround = !!t; + if (!workaround && force) { + workaround = true; + t = ['', '', 0]; + } + + if (workaround) { + div.innerHTML = ' ' + t[0] + html + t[1]; + div.removeChild(div.firstChild); + for (var i = t[2]; i--; ) + div = div.firstChild; + } else { + div.innerHTML = html; + } + + return $A(div.childNodes); + } + + function clone(element, deep) { + if (!(element = $(element))) return; + var clone = element.cloneNode(deep); + if (!HAS_UNIQUE_ID_PROPERTY) { + clone._prototypeUID = UNDEFINED; + if (deep) { + var descendants = Element.select(clone, '*'), + i = descendants.length; + while (i--) + descendants[i]._prototypeUID = UNDEFINED; + } + } + return Element.extend(clone); + } + + function purgeElement(element) { + var uid = getUniqueElementID(element); + if (uid) { + Element.stopObserving(element); + if (!HAS_UNIQUE_ID_PROPERTY) + element._prototypeUID = UNDEFINED; + delete Element.Storage[uid]; + } + } + + function purgeCollection(elements) { + var i = elements.length; + while (i--) + purgeElement(elements[i]); + } + + function purgeCollection_IE(elements) { + var i = elements.length, element, uid; + while (i--) { + element = elements[i]; + uid = getUniqueElementID(element); + delete Element.Storage[uid]; + delete Event.cache[uid]; + } + } + + if (HAS_UNIQUE_ID_PROPERTY) { + purgeCollection = purgeCollection_IE; + } + + + function purge(element) { + if (!(element = $(element))) return; + purgeElement(element); + + var descendants = element.getElementsByTagName('*'), + i = descendants.length; + + while (i--) purgeElement(descendants[i]); + + return null; + } + + Object.extend(methods, { + remove: remove, + update: update, + replace: replace, + insert: insert, + wrap: wrap, + cleanWhitespace: cleanWhitespace, + empty: empty, + clone: clone, + purge: purge + }); + + + + function recursivelyCollect(element, property, maximumLength) { + element = $(element); + maximumLength = maximumLength || -1; + var elements = []; + + while (element = element[property]) { + if (element.nodeType === Node.ELEMENT_NODE) + elements.push(Element.extend(element)); + + if (elements.length === maximumLength) break; + } + + return elements; + } + + + function ancestors(element) { + return recursivelyCollect(element, 'parentNode'); + } + + function descendants(element) { + return Element.select(element, '*'); + } + + function firstDescendant(element) { + element = $(element).firstChild; + while (element && element.nodeType !== Node.ELEMENT_NODE) + element = element.nextSibling; + + return $(element); + } + + function immediateDescendants(element) { + var results = [], child = $(element).firstChild; + + while (child) { + if (child.nodeType === Node.ELEMENT_NODE) + results.push(Element.extend(child)); + + child = child.nextSibling; + } + + return results; + } + + function previousSiblings(element) { + return recursivelyCollect(element, 'previousSibling'); + } + + function nextSiblings(element) { + return recursivelyCollect(element, 'nextSibling'); + } + + function siblings(element) { + element = $(element); + var previous = previousSiblings(element), + next = nextSiblings(element); + return previous.reverse().concat(next); + } + + function match(element, selector) { + element = $(element); + + if (Object.isString(selector)) + return Prototype.Selector.match(element, selector); + + return selector.match(element); + } + + + function _recursivelyFind(element, property, expression, index) { + element = $(element), expression = expression || 0, index = index || 0; + if (Object.isNumber(expression)) { + index = expression, expression = null; + } + + while (element = element[property]) { + if (element.nodeType !== 1) continue; + if (expression && !Prototype.Selector.match(element, expression)) + continue; + if (--index >= 0) continue; + + return Element.extend(element); + } + } + + + function up(element, expression, index) { + element = $(element); + + if (arguments.length === 1) return $(element.parentNode); + return _recursivelyFind(element, 'parentNode', expression, index); + } + + function down(element, expression, index) { + if (arguments.length === 1) return firstDescendant(element); + element = $(element), expression = expression || 0, index = index || 0; + + if (Object.isNumber(expression)) + index = expression, expression = '*'; + + var node = Prototype.Selector.select(expression, element)[index]; + return Element.extend(node); + } + + function previous(element, expression, index) { + return _recursivelyFind(element, 'previousSibling', expression, index); + } + + function next(element, expression, index) { + return _recursivelyFind(element, 'nextSibling', expression, index); + } + + function select(element) { + element = $(element); + var expressions = SLICE.call(arguments, 1).join(', '); + return Prototype.Selector.select(expressions, element); + } + + function adjacent(element) { + element = $(element); + var expressions = SLICE.call(arguments, 1).join(', '); + var siblings = Element.siblings(element), results = []; + for (var i = 0, sibling; sibling = siblings[i]; i++) { + if (Prototype.Selector.match(sibling, expressions)) + results.push(sibling); + } + + return results; + } + + function descendantOf_DOM(element, ancestor) { + element = $(element), ancestor = $(ancestor); + if (!element || !ancestor) return false; + while (element = element.parentNode) + if (element === ancestor) return true; + return false; + } + + function descendantOf_contains(element, ancestor) { + element = $(element), ancestor = $(ancestor); + if (!element || !ancestor) return false; + if (!ancestor.contains) return descendantOf_DOM(element, ancestor); + return ancestor.contains(element) && ancestor !== element; + } + + function descendantOf_compareDocumentPosition(element, ancestor) { + element = $(element), ancestor = $(ancestor); + if (!element || !ancestor) return false; + return (element.compareDocumentPosition(ancestor) & 8) === 8; + } + + var descendantOf; + if (DIV.compareDocumentPosition) { + descendantOf = descendantOf_compareDocumentPosition; + } else if (DIV.contains) { + descendantOf = descendantOf_contains; + } else { + descendantOf = descendantOf_DOM; + } + + + Object.extend(methods, { + recursivelyCollect: recursivelyCollect, + ancestors: ancestors, + descendants: descendants, + firstDescendant: firstDescendant, + immediateDescendants: immediateDescendants, + previousSiblings: previousSiblings, + nextSiblings: nextSiblings, + siblings: siblings, + match: match, + up: up, + down: down, + previous: previous, + next: next, + select: select, + adjacent: adjacent, + descendantOf: descendantOf, + + getElementsBySelector: select, + + childElements: immediateDescendants + }); + + + var idCounter = 1; + function identify(element) { + element = $(element); + var id = Element.readAttribute(element, 'id'); + if (id) return id; + + do { id = 'anonymous_element_' + idCounter++ } while ($(id)); + + Element.writeAttribute(element, 'id', id); + return id; + } + + + function readAttribute(element, name) { + return $(element).getAttribute(name); + } + + function readAttribute_IE(element, name) { + element = $(element); + + var table = ATTRIBUTE_TRANSLATIONS.read; + if (table.values[name]) + return table.values[name](element, name); + + if (table.names[name]) name = table.names[name]; + + if (name.include(':')) { + if (!element.attributes || !element.attributes[name]) return null; + return element.attributes[name].value; + } + + return element.getAttribute(name); + } + + function readAttribute_Opera(element, name) { + if (name === 'title') return element.title; + return element.getAttribute(name); + } + + var PROBLEMATIC_ATTRIBUTE_READING = (function() { + DIV.setAttribute('onclick', []); + var value = DIV.getAttribute('onclick'); + var isFunction = Object.isArray(value); + DIV.removeAttribute('onclick'); + return isFunction; + })(); + + if (PROBLEMATIC_ATTRIBUTE_READING) { + readAttribute = readAttribute_IE; + } else if (Prototype.Browser.Opera) { + readAttribute = readAttribute_Opera; + } + + + function writeAttribute(element, name, value) { + element = $(element); + var attributes = {}, table = ATTRIBUTE_TRANSLATIONS.write; + + if (typeof name === 'object') { + attributes = name; + } else { + attributes[name] = Object.isUndefined(value) ? true : value; + } + + for (var attr in attributes) { + name = table.names[attr] || attr; + value = attributes[attr]; + if (table.values[attr]) { + value = table.values[attr](element, value); + if (Object.isUndefined(value)) continue; + } + if (value === false || value === null) + element.removeAttribute(name); + else if (value === true) + element.setAttribute(name, name); + else element.setAttribute(name, value); + } + + return element; + } + + var PROBLEMATIC_HAS_ATTRIBUTE_WITH_CHECKBOXES = (function () { + if (!HAS_EXTENDED_CREATE_ELEMENT_SYNTAX) { + return false; + } + var checkbox = document.createElement(''); + checkbox.checked = true; + var node = checkbox.getAttributeNode('checked'); + return !node || !node.specified; + })(); + + function hasAttribute(element, attribute) { + attribute = ATTRIBUTE_TRANSLATIONS.has[attribute] || attribute; + var node = $(element).getAttributeNode(attribute); + return !!(node && node.specified); + } + + function hasAttribute_IE(element, attribute) { + if (attribute === 'checked') { + return element.checked; + } + return hasAttribute(element, attribute); + } + + GLOBAL.Element.Methods.Simulated.hasAttribute = + PROBLEMATIC_HAS_ATTRIBUTE_WITH_CHECKBOXES ? + hasAttribute_IE : hasAttribute; + + function classNames(element) { + return new Element.ClassNames(element); + } + + var regExpCache = {}; + function getRegExpForClassName(className) { + if (regExpCache[className]) return regExpCache[className]; + + var re = new RegExp("(^|\\s+)" + className + "(\\s+|$)"); + regExpCache[className] = re; + return re; + } + + function hasClassName(element, className) { + if (!(element = $(element))) return; + + var elementClassName = element.className; + + if (elementClassName.length === 0) return false; + if (elementClassName === className) return true; + + return getRegExpForClassName(className).test(elementClassName); + } + + function addClassName(element, className) { + if (!(element = $(element))) return; + + if (!hasClassName(element, className)) + element.className += (element.className ? ' ' : '') + className; + + return element; + } + + function removeClassName(element, className) { + if (!(element = $(element))) return; + + element.className = element.className.replace( + getRegExpForClassName(className), ' ').strip(); + + return element; + } + + function toggleClassName(element, className, bool) { + if (!(element = $(element))) return; + + if (Object.isUndefined(bool)) + bool = !hasClassName(element, className); + + var method = Element[bool ? 'addClassName' : 'removeClassName']; + return method(element, className); + } + + var ATTRIBUTE_TRANSLATIONS = {}; + + var classProp = 'className', forProp = 'for'; + + DIV.setAttribute(classProp, 'x'); + if (DIV.className !== 'x') { + DIV.setAttribute('class', 'x'); + if (DIV.className === 'x') + classProp = 'class'; + } + + var LABEL = document.createElement('label'); + LABEL.setAttribute(forProp, 'x'); + if (LABEL.htmlFor !== 'x') { + LABEL.setAttribute('htmlFor', 'x'); + if (LABEL.htmlFor === 'x') + forProp = 'htmlFor'; + } + LABEL = null; + + function _getAttr(element, attribute) { + return element.getAttribute(attribute); + } + + function _getAttr2(element, attribute) { + return element.getAttribute(attribute, 2); + } + + function _getAttrNode(element, attribute) { + var node = element.getAttributeNode(attribute); + return node ? node.value : ''; + } + + function _getFlag(element, attribute) { + return $(element).hasAttribute(attribute) ? attribute : null; + } + + DIV.onclick = Prototype.emptyFunction; + var onclickValue = DIV.getAttribute('onclick'); + + var _getEv; + + if (String(onclickValue).indexOf('{') > -1) { + _getEv = function(element, attribute) { + var value = element.getAttribute(attribute); + if (!value) return null; + value = value.toString(); + value = value.split('{')[1]; + value = value.split('}')[0]; + return value.strip(); + }; + } + else if (onclickValue === '') { + _getEv = function(element, attribute) { + var value = element.getAttribute(attribute); + if (!value) return null; + return value.strip(); + }; + } + + ATTRIBUTE_TRANSLATIONS.read = { + names: { + 'class': classProp, + 'className': classProp, + 'for': forProp, + 'htmlFor': forProp + }, + + values: { + style: function(element) { + return element.style.cssText.toLowerCase(); + }, + title: function(element) { + return element.title; + } + } + }; + + ATTRIBUTE_TRANSLATIONS.write = { + names: { + className: 'class', + htmlFor: 'for', + cellpadding: 'cellPadding', + cellspacing: 'cellSpacing' + }, + + values: { + checked: function(element, value) { + value = !!value; + element.checked = value; + return value ? 'checked' : null; + }, + + style: function(element, value) { + element.style.cssText = value ? value : ''; + } + } + }; + + ATTRIBUTE_TRANSLATIONS.has = { names: {} }; + + Object.extend(ATTRIBUTE_TRANSLATIONS.write.names, + ATTRIBUTE_TRANSLATIONS.read.names); + + var CAMEL_CASED_ATTRIBUTE_NAMES = $w('colSpan rowSpan vAlign dateTime ' + + 'accessKey tabIndex encType maxLength readOnly longDesc frameBorder'); + + for (var i = 0, attr; attr = CAMEL_CASED_ATTRIBUTE_NAMES[i]; i++) { + ATTRIBUTE_TRANSLATIONS.write.names[attr.toLowerCase()] = attr; + ATTRIBUTE_TRANSLATIONS.has.names[attr.toLowerCase()] = attr; + } + + Object.extend(ATTRIBUTE_TRANSLATIONS.read.values, { + href: _getAttr2, + src: _getAttr2, + type: _getAttr, + action: _getAttrNode, + disabled: _getFlag, + checked: _getFlag, + readonly: _getFlag, + multiple: _getFlag, + onload: _getEv, + onunload: _getEv, + onclick: _getEv, + ondblclick: _getEv, + onmousedown: _getEv, + onmouseup: _getEv, + onmouseover: _getEv, + onmousemove: _getEv, + onmouseout: _getEv, + onfocus: _getEv, + onblur: _getEv, + onkeypress: _getEv, + onkeydown: _getEv, + onkeyup: _getEv, + onsubmit: _getEv, + onreset: _getEv, + onselect: _getEv, + onchange: _getEv + }); + + + Object.extend(methods, { + identify: identify, + readAttribute: readAttribute, + writeAttribute: writeAttribute, + classNames: classNames, + hasClassName: hasClassName, + addClassName: addClassName, + removeClassName: removeClassName, + toggleClassName: toggleClassName + }); + + + function normalizeStyleName(style) { + if (style === 'float' || style === 'styleFloat') + return 'cssFloat'; + return style.camelize(); + } + + function normalizeStyleName_IE(style) { + if (style === 'float' || style === 'cssFloat') + return 'styleFloat'; + return style.camelize(); + } + + function setStyle(element, styles) { + element = $(element); + var elementStyle = element.style, match; + + if (Object.isString(styles)) { + elementStyle.cssText += ';' + styles; + if (styles.include('opacity')) { + var opacity = styles.match(/opacity:\s*(\d?\.?\d*)/)[1]; + Element.setOpacity(element, opacity); + } + return element; + } + + for (var property in styles) { + if (property === 'opacity') { + Element.setOpacity(element, styles[property]); + } else { + var value = styles[property]; + if (property === 'float' || property === 'cssFloat') { + property = Object.isUndefined(elementStyle.styleFloat) ? + 'cssFloat' : 'styleFloat'; + } + elementStyle[property] = value; + } + } + + return element; + } + + + function getStyle(element, style) { + element = $(element); + style = normalizeStyleName(style); + + var value = element.style[style]; + if (!value || value === 'auto') { + var css = document.defaultView.getComputedStyle(element, null); + value = css ? css[style] : null; + } + + if (style === 'opacity') return value ? parseFloat(value) : 1.0; + return value === 'auto' ? null : value; + } + + function getStyle_Opera(element, style) { + switch (style) { + case 'height': case 'width': + if (!Element.visible(element)) return null; + + var dim = parseInt(getStyle(element, style), 10); + + if (dim !== element['offset' + style.capitalize()]) + return dim + 'px'; + + return Element.measure(element, style); + + default: return getStyle(element, style); + } + } + + function getStyle_IE(element, style) { + element = $(element); + style = normalizeStyleName_IE(style); + + var value = element.style[style]; + if (!value && element.currentStyle) { + value = element.currentStyle[style]; + } + + if (style === 'opacity') { + if (!STANDARD_CSS_OPACITY_SUPPORTED) + return getOpacity_IE(element); + else return value ? parseFloat(value) : 1.0; + } + + if (value === 'auto') { + if ((style === 'width' || style === 'height') && Element.visible(element)) + return Element.measure(element, style) + 'px'; + return null; + } + + return value; + } + + function stripAlphaFromFilter_IE(filter) { + return (filter || '').replace(/alpha\([^\)]*\)/gi, ''); + } + + function hasLayout_IE(element) { + if (!element.currentStyle || !element.currentStyle.hasLayout) + element.style.zoom = 1; + return element; + } + + var STANDARD_CSS_OPACITY_SUPPORTED = (function() { + DIV.style.cssText = "opacity:.55"; + return /^0.55/.test(DIV.style.opacity); + })(); + + function setOpacity(element, value) { + element = $(element); + if (value == 1 || value === '') value = ''; + else if (value < 0.00001) value = 0; + element.style.opacity = value; + return element; + } + + function setOpacity_IE(element, value) { + if (STANDARD_CSS_OPACITY_SUPPORTED) + return setOpacity(element, value); + + element = hasLayout_IE($(element)); + var filter = Element.getStyle(element, 'filter'), + style = element.style; + + if (value == 1 || value === '') { + filter = stripAlphaFromFilter_IE(filter); + if (filter) style.filter = filter; + else style.removeAttribute('filter'); + return element; + } + + if (value < 0.00001) value = 0; + + style.filter = stripAlphaFromFilter_IE(filter) + + ' alpha(opacity=' + (value * 100) + ')'; + + return element; + } + + + function getOpacity(element) { + return Element.getStyle(element, 'opacity'); + } + + function getOpacity_IE(element) { + if (STANDARD_CSS_OPACITY_SUPPORTED) + return getOpacity(element); + + var filter = Element.getStyle(element, 'filter'); + if (filter.length === 0) return 1.0; + var match = (filter || '').match(/alpha\(opacity=(.*)\)/i); + if (match && match[1]) return parseFloat(match[1]) / 100; + return 1.0; + } + + + Object.extend(methods, { + setStyle: setStyle, + getStyle: getStyle, + setOpacity: setOpacity, + getOpacity: getOpacity + }); + + if ('styleFloat' in DIV.style) { + methods.getStyle = getStyle_IE; + methods.setOpacity = setOpacity_IE; + methods.getOpacity = getOpacity_IE; + } + + var UID = 0; + + GLOBAL.Element.Storage = { UID: 1 }; + + function getUniqueElementID(element) { + if (element === window) return 0; + + if (typeof element._prototypeUID === 'undefined') + element._prototypeUID = Element.Storage.UID++; + return element._prototypeUID; + } + + function getUniqueElementID_IE(element) { + if (element === window) return 0; + if (element == document) return 1; + return element.uniqueID; + } + + var HAS_UNIQUE_ID_PROPERTY = ('uniqueID' in DIV); + if (HAS_UNIQUE_ID_PROPERTY) + getUniqueElementID = getUniqueElementID_IE; + + function getStorage(element) { + if (!(element = $(element))) return; + + var uid = getUniqueElementID(element); + + if (!Element.Storage[uid]) + Element.Storage[uid] = $H(); + + return Element.Storage[uid]; + } + + function store(element, key, value) { + if (!(element = $(element))) return; + var storage = getStorage(element); + if (arguments.length === 2) { + storage.update(key); + } else { + storage.set(key, value); + } + return element; + } + + function retrieve(element, key, defaultValue) { + if (!(element = $(element))) return; + var storage = getStorage(element), value = storage.get(key); + + if (Object.isUndefined(value)) { + storage.set(key, defaultValue); + value = defaultValue; + } + + return value; + } + + + Object.extend(methods, { + getStorage: getStorage, + store: store, + retrieve: retrieve + }); + + + var Methods = {}, ByTag = Element.Methods.ByTag, + F = Prototype.BrowserFeatures; + + if (!F.ElementExtensions && ('__proto__' in DIV)) { + GLOBAL.HTMLElement = {}; + GLOBAL.HTMLElement.prototype = DIV['__proto__']; + F.ElementExtensions = true; + } + + function checkElementPrototypeDeficiency(tagName) { + if (typeof window.Element === 'undefined') return false; + if (!HAS_EXTENDED_CREATE_ELEMENT_SYNTAX) return false; + var proto = window.Element.prototype; + if (proto) { + var id = '_' + (Math.random() + '').slice(2), + el = document.createElement(tagName); + proto[id] = 'x'; + var isBuggy = (el[id] !== 'x'); + delete proto[id]; + el = null; + return isBuggy; + } + + return false; + } + + var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = + checkElementPrototypeDeficiency('object'); + + function extendElementWith(element, methods) { + for (var property in methods) { + var value = methods[property]; + if (Object.isFunction(value) && !(property in element)) + element[property] = value.methodize(); + } + } + + var EXTENDED = {}; + function elementIsExtended(element) { + var uid = getUniqueElementID(element); + return (uid in EXTENDED); + } + + function extend(element) { + if (!element || elementIsExtended(element)) return element; + if (element.nodeType !== Node.ELEMENT_NODE || element == window) + return element; + + var methods = Object.clone(Methods), + tagName = element.tagName.toUpperCase(); + + if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]); + + extendElementWith(element, methods); + EXTENDED[getUniqueElementID(element)] = true; + return element; + } + + function extend_IE8(element) { + if (!element || elementIsExtended(element)) return element; + + var t = element.tagName; + if (t && (/^(?:object|applet|embed)$/i.test(t))) { + extendElementWith(element, Element.Methods); + extendElementWith(element, Element.Methods.Simulated); + extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]); + } + + return element; + } + + if (F.SpecificElementExtensions) { + extend = HTMLOBJECTELEMENT_PROTOTYPE_BUGGY ? extend_IE8 : Prototype.K; + } + + function addMethodsToTagName(tagName, methods) { + tagName = tagName.toUpperCase(); + if (!ByTag[tagName]) ByTag[tagName] = {}; + Object.extend(ByTag[tagName], methods); + } + + function mergeMethods(destination, methods, onlyIfAbsent) { + if (Object.isUndefined(onlyIfAbsent)) onlyIfAbsent = false; + for (var property in methods) { + var value = methods[property]; + if (!Object.isFunction(value)) continue; + if (!onlyIfAbsent || !(property in destination)) + destination[property] = value.methodize(); + } + } + + function findDOMClass(tagName) { + var klass; + var trans = { + "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph", + "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList", + "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading", + "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote", + "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION": + "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD": + "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR": + "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET": + "FrameSet", "IFRAME": "IFrame" + }; + if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element'; + if (window[klass]) return window[klass]; + klass = 'HTML' + tagName + 'Element'; + if (window[klass]) return window[klass]; + klass = 'HTML' + tagName.capitalize() + 'Element'; + if (window[klass]) return window[klass]; + + var element = document.createElement(tagName), + proto = element['__proto__'] || element.constructor.prototype; + + element = null; + return proto; + } + + function addMethods(methods) { + if (arguments.length === 0) addFormMethods(); + + if (arguments.length === 2) { + var tagName = methods; + methods = arguments[1]; + } + + if (!tagName) { + Object.extend(Element.Methods, methods || {}); + } else { + if (Object.isArray(tagName)) { + for (var i = 0, tag; tag = tagName[i]; i++) + addMethodsToTagName(tag, methods); + } else { + addMethodsToTagName(tagName, methods); + } + } + + var ELEMENT_PROTOTYPE = window.HTMLElement ? HTMLElement.prototype : + Element.prototype; + + if (F.ElementExtensions) { + mergeMethods(ELEMENT_PROTOTYPE, Element.Methods); + mergeMethods(ELEMENT_PROTOTYPE, Element.Methods.Simulated, true); + } + + if (F.SpecificElementExtensions) { + for (var tag in Element.Methods.ByTag) { + var klass = findDOMClass(tag); + if (Object.isUndefined(klass)) continue; + mergeMethods(klass.prototype, ByTag[tag]); + } + } + + Object.extend(Element, Element.Methods); + Object.extend(Element, Element.Methods.Simulated); + delete Element.ByTag; + delete Element.Simulated; + + Element.extend.refresh(); + + ELEMENT_CACHE = {}; + } + + Object.extend(GLOBAL.Element, { + extend: extend, + addMethods: addMethods + }); + + if (extend === Prototype.K) { + GLOBAL.Element.extend.refresh = Prototype.emptyFunction; + } else { + GLOBAL.Element.extend.refresh = function() { + if (Prototype.BrowserFeatures.ElementExtensions) return; + Object.extend(Methods, Element.Methods); + Object.extend(Methods, Element.Methods.Simulated); + + EXTENDED = {}; + }; + } + + function addFormMethods() { + Object.extend(Form, Form.Methods); + Object.extend(Form.Element, Form.Element.Methods); + Object.extend(Element.Methods.ByTag, { + "FORM": Object.clone(Form.Methods), + "INPUT": Object.clone(Form.Element.Methods), + "SELECT": Object.clone(Form.Element.Methods), + "TEXTAREA": Object.clone(Form.Element.Methods), + "BUTTON": Object.clone(Form.Element.Methods) + }); + } + + Element.addMethods(methods); + + function destroyCache_IE() { + DIV = null; + ELEMENT_CACHE = null; + } + + if (window.attachEvent) + window.attachEvent('onunload', destroyCache_IE); + +})(this); +(function() { + + function toDecimal(pctString) { + var match = pctString.match(/^(\d+)%?$/i); + if (!match) return null; + return (Number(match[1]) / 100); + } + + function getRawStyle(element, style) { + element = $(element); + + var value = element.style[style]; + if (!value || value === 'auto') { + var css = document.defaultView.getComputedStyle(element, null); + value = css ? css[style] : null; + } + + if (style === 'opacity') return value ? parseFloat(value) : 1.0; + return value === 'auto' ? null : value; + } + + function getRawStyle_IE(element, style) { + var value = element.style[style]; + if (!value && element.currentStyle) { + value = element.currentStyle[style]; + } + return value; + } + + function getContentWidth(element, context) { + var boxWidth = element.offsetWidth; + + var bl = getPixelValue(element, 'borderLeftWidth', context) || 0; + var br = getPixelValue(element, 'borderRightWidth', context) || 0; + var pl = getPixelValue(element, 'paddingLeft', context) || 0; + var pr = getPixelValue(element, 'paddingRight', context) || 0; + + return boxWidth - bl - br - pl - pr; + } + + if (!Object.isUndefined(document.documentElement.currentStyle) && !Prototype.Browser.Opera) { + getRawStyle = getRawStyle_IE; + } + + + function getPixelValue(value, property, context) { + var element = null; + if (Object.isElement(value)) { + element = value; + value = getRawStyle(element, property); + } + + if (value === null || Object.isUndefined(value)) { + return null; + } + + if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value)) { + return window.parseFloat(value); + } + + var isPercentage = value.include('%'), isViewport = (context === document.viewport); + + if (/\d/.test(value) && element && element.runtimeStyle && !(isPercentage && isViewport)) { + var style = element.style.left, rStyle = element.runtimeStyle.left; + element.runtimeStyle.left = element.currentStyle.left; + element.style.left = value || 0; + value = element.style.pixelLeft; + element.style.left = style; + element.runtimeStyle.left = rStyle; + + return value; + } + + if (element && isPercentage) { + context = context || element.parentNode; + var decimal = toDecimal(value), whole = null; + + var isHorizontal = property.include('left') || property.include('right') || + property.include('width'); + + var isVertical = property.include('top') || property.include('bottom') || + property.include('height'); + + if (context === document.viewport) { + if (isHorizontal) { + whole = document.viewport.getWidth(); + } else if (isVertical) { + whole = document.viewport.getHeight(); + } + } else { + if (isHorizontal) { + whole = $(context).measure('width'); + } else if (isVertical) { + whole = $(context).measure('height'); + } + } + + return (whole === null) ? 0 : whole * decimal; + } + + return 0; + } + + function toCSSPixels(number) { + if (Object.isString(number) && number.endsWith('px')) + return number; + return number + 'px'; + } + + function isDisplayed(element) { + while (element && element.parentNode) { + var display = element.getStyle('display'); + if (display === 'none') { + return false; + } + element = $(element.parentNode); + } + return true; + } + + var hasLayout = Prototype.K; + if ('currentStyle' in document.documentElement) { + hasLayout = function(element) { + if (!element.currentStyle.hasLayout) { + element.style.zoom = 1; + } + return element; + }; + } + + function cssNameFor(key) { + if (key.include('border')) key = key + '-width'; + return key.camelize(); + } + + Element.Layout = Class.create(Hash, { + initialize: function($super, element, preCompute) { + $super(); + this.element = $(element); + + Element.Layout.PROPERTIES.each( function(property) { + this._set(property, null); + }, this); + + if (preCompute) { + this._preComputing = true; + this._begin(); + Element.Layout.PROPERTIES.each( this._compute, this ); + this._end(); + this._preComputing = false; + } + }, + + _set: function(property, value) { + return Hash.prototype.set.call(this, property, value); + }, + + set: function(property, value) { + throw "Properties of Element.Layout are read-only."; + }, + + get: function($super, property) { + var value = $super(property); + return value === null ? this._compute(property) : value; + }, + + _begin: function() { + if (this._isPrepared()) return; + + var element = this.element; + if (isDisplayed(element)) { + this._setPrepared(true); + return; + } + + + var originalStyles = { + position: element.style.position || '', + width: element.style.width || '', + visibility: element.style.visibility || '', + display: element.style.display || '' + }; + + element.store('prototype_original_styles', originalStyles); + + var position = getRawStyle(element, 'position'), width = element.offsetWidth; + + if (width === 0 || width === null) { + element.style.display = 'block'; + width = element.offsetWidth; + } + + var context = (position === 'fixed') ? document.viewport : + element.parentNode; + + var tempStyles = { + visibility: 'hidden', + display: 'block' + }; + + if (position !== 'fixed') tempStyles.position = 'absolute'; + + element.setStyle(tempStyles); + + var positionedWidth = element.offsetWidth, newWidth; + if (width && (positionedWidth === width)) { + newWidth = getContentWidth(element, context); + } else if (position === 'absolute' || position === 'fixed') { + newWidth = getContentWidth(element, context); + } else { + var parent = element.parentNode, pLayout = $(parent).getLayout(); + + newWidth = pLayout.get('width') - + this.get('margin-left') - + this.get('border-left') - + this.get('padding-left') - + this.get('padding-right') - + this.get('border-right') - + this.get('margin-right'); + } + + element.setStyle({ width: newWidth + 'px' }); + + this._setPrepared(true); + }, + + _end: function() { + var element = this.element; + var originalStyles = element.retrieve('prototype_original_styles'); + element.store('prototype_original_styles', null); + element.setStyle(originalStyles); + this._setPrepared(false); + }, + + _compute: function(property) { + var COMPUTATIONS = Element.Layout.COMPUTATIONS; + if (!(property in COMPUTATIONS)) { + throw "Property not found."; + } + + return this._set(property, COMPUTATIONS[property].call(this, this.element)); + }, + + _isPrepared: function() { + return this.element.retrieve('prototype_element_layout_prepared', false); + }, + + _setPrepared: function(bool) { + return this.element.store('prototype_element_layout_prepared', bool); + }, + + toObject: function() { + var args = $A(arguments); + var keys = (args.length === 0) ? Element.Layout.PROPERTIES : + args.join(' ').split(' '); + var obj = {}; + keys.each( function(key) { + if (!Element.Layout.PROPERTIES.include(key)) return; + var value = this.get(key); + if (value != null) obj[key] = value; + }, this); + return obj; + }, + + toHash: function() { + var obj = this.toObject.apply(this, arguments); + return new Hash(obj); + }, + + toCSS: function() { + var args = $A(arguments); + var keys = (args.length === 0) ? Element.Layout.PROPERTIES : + args.join(' ').split(' '); + var css = {}; + + keys.each( function(key) { + if (!Element.Layout.PROPERTIES.include(key)) return; + if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return; + + var value = this.get(key); + if (value != null) css[cssNameFor(key)] = value + 'px'; + }, this); + return css; + }, + + inspect: function() { + return "#"; + } + }); + + Object.extend(Element.Layout, { + PROPERTIES: $w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'), + + COMPOSITE_PROPERTIES: $w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'), + + COMPUTATIONS: { + 'height': function(element) { + if (!this._preComputing) this._begin(); + + var bHeight = this.get('border-box-height'); + if (bHeight <= 0) { + if (!this._preComputing) this._end(); + return 0; + } + + var bTop = this.get('border-top'), + bBottom = this.get('border-bottom'); + + var pTop = this.get('padding-top'), + pBottom = this.get('padding-bottom'); + + if (!this._preComputing) this._end(); + + return bHeight - bTop - bBottom - pTop - pBottom; + }, + + 'width': function(element) { + if (!this._preComputing) this._begin(); + + var bWidth = this.get('border-box-width'); + if (bWidth <= 0) { + if (!this._preComputing) this._end(); + return 0; + } + + var bLeft = this.get('border-left'), + bRight = this.get('border-right'); + + var pLeft = this.get('padding-left'), + pRight = this.get('padding-right'); + + if (!this._preComputing) this._end(); + return bWidth - bLeft - bRight - pLeft - pRight; + }, + + 'padding-box-height': function(element) { + var height = this.get('height'), + pTop = this.get('padding-top'), + pBottom = this.get('padding-bottom'); + + return height + pTop + pBottom; + }, + + 'padding-box-width': function(element) { + var width = this.get('width'), + pLeft = this.get('padding-left'), + pRight = this.get('padding-right'); + + return width + pLeft + pRight; + }, + + 'border-box-height': function(element) { + if (!this._preComputing) this._begin(); + var height = element.offsetHeight; + if (!this._preComputing) this._end(); + return height; + }, + + 'border-box-width': function(element) { + if (!this._preComputing) this._begin(); + var width = element.offsetWidth; + if (!this._preComputing) this._end(); + return width; + }, + + 'margin-box-height': function(element) { + var bHeight = this.get('border-box-height'), + mTop = this.get('margin-top'), + mBottom = this.get('margin-bottom'); + + if (bHeight <= 0) return 0; + + return bHeight + mTop + mBottom; + }, + + 'margin-box-width': function(element) { + var bWidth = this.get('border-box-width'), + mLeft = this.get('margin-left'), + mRight = this.get('margin-right'); + + if (bWidth <= 0) return 0; + + return bWidth + mLeft + mRight; + }, + + 'top': function(element) { + var offset = element.positionedOffset(); + return offset.top; + }, + + 'bottom': function(element) { + var offset = element.positionedOffset(), + parent = element.getOffsetParent(), + pHeight = parent.measure('height'); + + var mHeight = this.get('border-box-height'); + + return pHeight - mHeight - offset.top; + }, + + 'left': function(element) { + var offset = element.positionedOffset(); + return offset.left; + }, + + 'right': function(element) { + var offset = element.positionedOffset(), + parent = element.getOffsetParent(), + pWidth = parent.measure('width'); + + var mWidth = this.get('border-box-width'); + + return pWidth - mWidth - offset.left; + }, + + 'padding-top': function(element) { + return getPixelValue(element, 'paddingTop'); + }, + + 'padding-bottom': function(element) { + return getPixelValue(element, 'paddingBottom'); + }, + + 'padding-left': function(element) { + return getPixelValue(element, 'paddingLeft'); + }, + + 'padding-right': function(element) { + return getPixelValue(element, 'paddingRight'); + }, + + 'border-top': function(element) { + return getPixelValue(element, 'borderTopWidth'); + }, + + 'border-bottom': function(element) { + return getPixelValue(element, 'borderBottomWidth'); + }, + + 'border-left': function(element) { + return getPixelValue(element, 'borderLeftWidth'); + }, + + 'border-right': function(element) { + return getPixelValue(element, 'borderRightWidth'); + }, + + 'margin-top': function(element) { + return getPixelValue(element, 'marginTop'); + }, + + 'margin-bottom': function(element) { + return getPixelValue(element, 'marginBottom'); + }, + + 'margin-left': function(element) { + return getPixelValue(element, 'marginLeft'); + }, + + 'margin-right': function(element) { + return getPixelValue(element, 'marginRight'); + } + } + }); + + if ('getBoundingClientRect' in document.documentElement) { + Object.extend(Element.Layout.COMPUTATIONS, { + 'right': function(element) { + var parent = hasLayout(element.getOffsetParent()); + var rect = element.getBoundingClientRect(), + pRect = parent.getBoundingClientRect(); + + return (pRect.right - rect.right).round(); + }, + + 'bottom': function(element) { + var parent = hasLayout(element.getOffsetParent()); + var rect = element.getBoundingClientRect(), + pRect = parent.getBoundingClientRect(); + + return (pRect.bottom - rect.bottom).round(); + } + }); + } + + Element.Offset = Class.create({ + initialize: function(left, top) { + this.left = left.round(); + this.top = top.round(); + + this[0] = this.left; + this[1] = this.top; + }, + + relativeTo: function(offset) { + return new Element.Offset( + this.left - offset.left, + this.top - offset.top + ); + }, + + inspect: function() { + return "#".interpolate(this); + }, + + toString: function() { + return "[#{left}, #{top}]".interpolate(this); + }, + + toArray: function() { + return [this.left, this.top]; + } + }); + + function getLayout(element, preCompute) { + return new Element.Layout(element, preCompute); + } + + function measure(element, property) { + return $(element).getLayout().get(property); + } + + function getHeight(element) { + return Element.getDimensions(element).height; + } + + function getWidth(element) { + return Element.getDimensions(element).width; + } + + function getDimensions(element) { + element = $(element); + var display = Element.getStyle(element, 'display'); + + if (display && display !== 'none') { + return { width: element.offsetWidth, height: element.offsetHeight }; + } + + var style = element.style; + var originalStyles = { + visibility: style.visibility, + position: style.position, + display: style.display + }; + + var newStyles = { + visibility: 'hidden', + display: 'block' + }; + + if (originalStyles.position !== 'fixed') + newStyles.position = 'absolute'; + + Element.setStyle(element, newStyles); + + var dimensions = { + width: element.offsetWidth, + height: element.offsetHeight + }; + + Element.setStyle(element, originalStyles); + + return dimensions; + } + + function getOffsetParent(element) { + element = $(element); + + function selfOrBody(element) { + return isHtml(element) ? $(document.body) : $(element); + } + + if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element)) + return $(document.body); + + var isInline = (Element.getStyle(element, 'display') === 'inline'); + if (!isInline && element.offsetParent) return selfOrBody(element.offsetParent); + + while ((element = element.parentNode) && element !== document.body) { + if (Element.getStyle(element, 'position') !== 'static') { + return selfOrBody(element); + } + } + + return $(document.body); + } + + + function cumulativeOffset(element) { + element = $(element); + var valueT = 0, valueL = 0; + if (element.parentNode) { + do { + valueT += element.offsetTop || 0; + valueL += element.offsetLeft || 0; + element = element.offsetParent; + } while (element); + } + return new Element.Offset(valueL, valueT); + } + + function positionedOffset(element) { + element = $(element); + + var layout = element.getLayout(); + + var valueT = 0, valueL = 0; + do { + valueT += element.offsetTop || 0; + valueL += element.offsetLeft || 0; + element = element.offsetParent; + if (element) { + if (isBody(element)) break; + var p = Element.getStyle(element, 'position'); + if (p !== 'static') break; + } + } while (element); + + valueL -= layout.get('margin-left'); + valueT -= layout.get('margin-top'); + + return new Element.Offset(valueL, valueT); + } + + function cumulativeScrollOffset(element) { + var valueT = 0, valueL = 0; + do { + if (element === document.body) { + var bodyScrollNode = document.documentElement || document.body.parentNode || document.body; + valueT += !Object.isUndefined(window.pageYOffset) ? window.pageYOffset : bodyScrollNode.scrollTop || 0; + valueL += !Object.isUndefined(window.pageXOffset) ? window.pageXOffset : bodyScrollNode.scrollLeft || 0; + break; + } else { + valueT += element.scrollTop || 0; + valueL += element.scrollLeft || 0; + element = element.parentNode; + } + } while (element); + return new Element.Offset(valueL, valueT); + } + + function viewportOffset(forElement) { + var valueT = 0, valueL = 0, docBody = document.body; + + forElement = $(forElement); + var element = forElement; + do { + valueT += element.offsetTop || 0; + valueL += element.offsetLeft || 0; + if (element.offsetParent == docBody && + Element.getStyle(element, 'position') == 'absolute') break; + } while (element = element.offsetParent); + + element = forElement; + do { + if (element != docBody) { + valueT -= element.scrollTop || 0; + valueL -= element.scrollLeft || 0; + } + } while (element = element.parentNode); + return new Element.Offset(valueL, valueT); + } + + function absolutize(element) { + element = $(element); + + if (Element.getStyle(element, 'position') === 'absolute') { + return element; + } + + var offsetParent = getOffsetParent(element); + var eOffset = element.viewportOffset(), + pOffset = offsetParent.viewportOffset(); + + var offset = eOffset.relativeTo(pOffset); + var layout = element.getLayout(); + + element.store('prototype_absolutize_original_styles', { + position: element.getStyle('position'), + left: element.getStyle('left'), + top: element.getStyle('top'), + width: element.getStyle('width'), + height: element.getStyle('height') + }); + + element.setStyle({ + position: 'absolute', + top: offset.top + 'px', + left: offset.left + 'px', + width: layout.get('width') + 'px', + height: layout.get('height') + 'px' + }); + + return element; + } + + function relativize(element) { + element = $(element); + if (Element.getStyle(element, 'position') === 'relative') { + return element; + } + + var originalStyles = + element.retrieve('prototype_absolutize_original_styles'); + + if (originalStyles) element.setStyle(originalStyles); + return element; + } + + + function scrollTo(element) { + element = $(element); + var pos = Element.cumulativeOffset(element); + window.scrollTo(pos.left, pos.top); + return element; + } + + + function makePositioned(element) { + element = $(element); + var position = Element.getStyle(element, 'position'), styles = {}; + if (position === 'static' || !position) { + styles.position = 'relative'; + if (Prototype.Browser.Opera) { + styles.top = 0; + styles.left = 0; + } + Element.setStyle(element, styles); + Element.store(element, 'prototype_made_positioned', true); + } + return element; + } + + function undoPositioned(element) { + element = $(element); + var storage = Element.getStorage(element), + madePositioned = storage.get('prototype_made_positioned'); + + if (madePositioned) { + storage.unset('prototype_made_positioned'); + Element.setStyle(element, { + position: '', + top: '', + bottom: '', + left: '', + right: '' + }); + } + return element; + } + + function makeClipping(element) { + element = $(element); + + var storage = Element.getStorage(element), + madeClipping = storage.get('prototype_made_clipping'); + + if (Object.isUndefined(madeClipping)) { + var overflow = Element.getStyle(element, 'overflow'); + storage.set('prototype_made_clipping', overflow); + if (overflow !== 'hidden') + element.style.overflow = 'hidden'; + } + + return element; + } + + function undoClipping(element) { + element = $(element); + var storage = Element.getStorage(element), + overflow = storage.get('prototype_made_clipping'); + + if (!Object.isUndefined(overflow)) { + storage.unset('prototype_made_clipping'); + element.style.overflow = overflow || ''; + } + + return element; + } + + function clonePosition(element, source, options) { + options = Object.extend({ + setLeft: true, + setTop: true, + setWidth: true, + setHeight: true, + offsetTop: 0, + offsetLeft: 0 + }, options || {}); + + var docEl = document.documentElement; + + source = $(source); + element = $(element); + var p, delta, layout, styles = {}; + + if (options.setLeft || options.setTop) { + p = Element.viewportOffset(source); + delta = [0, 0]; + if (Element.getStyle(element, 'position') === 'absolute') { + var parent = Element.getOffsetParent(element); + if (parent !== document.body) delta = Element.viewportOffset(parent); + } + } + + function pageScrollXY() { + var x = 0, y = 0; + if (Object.isNumber(window.pageXOffset)) { + x = window.pageXOffset; + y = window.pageYOffset; + } else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) { + x = document.body.scrollLeft; + y = document.body.scrollTop; + } else if (docEl && (docEl.scrollLeft || docEl.scrollTop)) { + x = docEl.scrollLeft; + y = docEl.scrollTop; + } + return { x: x, y: y }; + } + + var pageXY = pageScrollXY(); + + + if (options.setWidth || options.setHeight) { + layout = Element.getLayout(source); + } + + if (options.setLeft) + styles.left = (p[0] + pageXY.x - delta[0] + options.offsetLeft) + 'px'; + if (options.setTop) + styles.top = (p[1] + pageXY.y - delta[1] + options.offsetTop) + 'px'; + + var currentLayout = element.getLayout(); + + if (options.setWidth) { + styles.width = layout.get('width') + 'px'; + } + if (options.setHeight) { + styles.height = layout.get('height') + 'px'; + } + + return Element.setStyle(element, styles); + } + + + if (Prototype.Browser.IE) { + getOffsetParent = getOffsetParent.wrap( + function(proceed, element) { + element = $(element); + + if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element)) + return $(document.body); + + var position = element.getStyle('position'); + if (position !== 'static') return proceed(element); + + element.setStyle({ position: 'relative' }); + var value = proceed(element); + element.setStyle({ position: position }); + return value; + } + ); + + positionedOffset = positionedOffset.wrap(function(proceed, element) { + element = $(element); + if (!element.parentNode) return new Element.Offset(0, 0); + var position = element.getStyle('position'); + if (position !== 'static') return proceed(element); + + var offsetParent = element.getOffsetParent(); + if (offsetParent && offsetParent.getStyle('position') === 'fixed') + hasLayout(offsetParent); + + element.setStyle({ position: 'relative' }); + var value = proceed(element); + element.setStyle({ position: position }); + return value; + }); + } else if (Prototype.Browser.Webkit) { + cumulativeOffset = function(element) { + element = $(element); + var valueT = 0, valueL = 0; + do { + valueT += element.offsetTop || 0; + valueL += element.offsetLeft || 0; + if (element.offsetParent == document.body) { + if (Element.getStyle(element, 'position') == 'absolute') break; + } + + element = element.offsetParent; + } while (element); + + return new Element.Offset(valueL, valueT); + }; + } + + + Element.addMethods({ + getLayout: getLayout, + measure: measure, + getWidth: getWidth, + getHeight: getHeight, + getDimensions: getDimensions, + getOffsetParent: getOffsetParent, + cumulativeOffset: cumulativeOffset, + positionedOffset: positionedOffset, + cumulativeScrollOffset: cumulativeScrollOffset, + viewportOffset: viewportOffset, + absolutize: absolutize, + relativize: relativize, + scrollTo: scrollTo, + makePositioned: makePositioned, + undoPositioned: undoPositioned, + makeClipping: makeClipping, + undoClipping: undoClipping, + clonePosition: clonePosition + }); + + function isBody(element) { + return element.nodeName.toUpperCase() === 'BODY'; + } + + function isHtml(element) { + return element.nodeName.toUpperCase() === 'HTML'; + } + + function isDocument(element) { + return element.nodeType === Node.DOCUMENT_NODE; + } + + function isDetached(element) { + return element !== document.body && + !Element.descendantOf(element, document.body); + } + + if ('getBoundingClientRect' in document.documentElement) { + Element.addMethods({ + viewportOffset: function(element) { + element = $(element); + if (isDetached(element)) return new Element.Offset(0, 0); + + var rect = element.getBoundingClientRect(), + docEl = document.documentElement; + return new Element.Offset(rect.left - docEl.clientLeft, + rect.top - docEl.clientTop); + } + }); + } + + +})(); + +(function() { + + var IS_OLD_OPERA = Prototype.Browser.Opera && + (window.parseFloat(window.opera.version()) < 9.5); + var ROOT = null; + function getRootElement() { + if (ROOT) return ROOT; + ROOT = IS_OLD_OPERA ? document.body : document.documentElement; + return ROOT; + } + + function getDimensions() { + return { width: this.getWidth(), height: this.getHeight() }; + } + + function getWidth() { + return getRootElement().clientWidth; + } + + function getHeight() { + return getRootElement().clientHeight; + } + + function getScrollOffsets() { + var x = window.pageXOffset || document.documentElement.scrollLeft || + document.body.scrollLeft; + var y = window.pageYOffset || document.documentElement.scrollTop || + document.body.scrollTop; + + return new Element.Offset(x, y); + } + + document.viewport = { + getDimensions: getDimensions, + getWidth: getWidth, + getHeight: getHeight, + getScrollOffsets: getScrollOffsets + }; + +})(); +window.$$ = function() { + var expression = $A(arguments).join(', '); + return Prototype.Selector.select(expression, document); +}; + +Prototype.Selector = (function() { + + function select() { + throw new Error('Method "Prototype.Selector.select" must be defined.'); + } + + function match() { + throw new Error('Method "Prototype.Selector.match" must be defined.'); + } + + function find(elements, expression, index) { + index = index || 0; + var match = Prototype.Selector.match, length = elements.length, matchIndex = 0, i; + + for (i = 0; i < length; i++) { + if (match(elements[i], expression) && index == matchIndex++) { + return Element.extend(elements[i]); + } + } + } + + function extendElements(elements) { + for (var i = 0, length = elements.length; i < length; i++) { + Element.extend(elements[i]); + } + return elements; + } + + + var K = Prototype.K; + + return { + select: select, + match: match, + find: find, + extendElements: (Element.extend === K) ? K : extendElements, + extendElement: Element.extend + }; +})(); +Prototype._original_property = window.Sizzle; + +;(function () { + function fakeDefine(fn) { + Prototype._actual_sizzle = fn(); + } + fakeDefine.amd = true; + + if (typeof define !== 'undefined' && define.amd) { + Prototype._original_define = define; + Prototype._actual_sizzle = null; + window.define = fakeDefine; + } +})(); + +/*! + * Sizzle CSS Selector Engine v1.10.18 + * http://sizzlejs.com/ + * + * Copyright 2013 jQuery Foundation, Inc. and other contributors + * Released under the MIT license + * http://jquery.org/license + * + * Date: 2014-02-05 + */ +(function( window ) { + +var i, + support, + Expr, + getText, + isXML, + compile, + select, + outermostContext, + sortInput, + hasDuplicate, + + setDocument, + document, + docElem, + documentIsHTML, + rbuggyQSA, + rbuggyMatches, + matches, + contains, + + expando = "sizzle" + -(new Date()), + preferredDoc = window.document, + dirruns = 0, + done = 0, + classCache = createCache(), + tokenCache = createCache(), + compilerCache = createCache(), + sortOrder = function( a, b ) { + if ( a === b ) { + hasDuplicate = true; + } + return 0; + }, + + strundefined = typeof undefined, + MAX_NEGATIVE = 1 << 31, + + hasOwn = ({}).hasOwnProperty, + arr = [], + pop = arr.pop, + push_native = arr.push, + push = arr.push, + slice = arr.slice, + indexOf = arr.indexOf || function( elem ) { + var i = 0, + len = this.length; + for ( ; i < len; i++ ) { + if ( this[i] === elem ) { + return i; + } + } + return -1; + }, + + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", + + + whitespace = "[\\x20\\t\\r\\n\\f]", + characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+", + + identifier = characterEncoding.replace( "w", "w#" ), + + attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace + + "*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]", + + pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)", + + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), + + rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), + + rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), + + rpseudo = new RegExp( pseudos ), + ridentifier = new RegExp( "^" + identifier + "$" ), + + matchExpr = { + "ID": new RegExp( "^#(" + characterEncoding + ")" ), + "CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ), + "TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ), + "ATTR": new RegExp( "^" + attributes ), + "PSEUDO": new RegExp( "^" + pseudos ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + }, + + rinputs = /^(?:input|select|textarea|button)$/i, + rheader = /^h\d$/i, + + rnative = /^[^{]+\{\s*\[native \w/, + + rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, + + rsibling = /[+~]/, + rescape = /'|\\/g, + + runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), + funescape = function( _, escaped, escapedWhitespace ) { + var high = "0x" + escaped - 0x10000; + return high !== high || escapedWhitespace ? + escaped : + high < 0 ? + String.fromCharCode( high + 0x10000 ) : + String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); + }; + +try { + push.apply( + (arr = slice.call( preferredDoc.childNodes )), + preferredDoc.childNodes + ); + arr[ preferredDoc.childNodes.length ].nodeType; +} catch ( e ) { + push = { apply: arr.length ? + + function( target, els ) { + push_native.apply( target, slice.call(els) ); + } : + + function( target, els ) { + var j = target.length, + i = 0; + while ( (target[j++] = els[i++]) ) {} + target.length = j - 1; + } + }; +} + +function Sizzle( selector, context, results, seed ) { + var match, elem, m, nodeType, + i, groups, old, nid, newContext, newSelector; + + if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { + setDocument( context ); + } + + context = context || document; + results = results || []; + + if ( !selector || typeof selector !== "string" ) { + return results; + } + + if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) { + return []; + } + + if ( documentIsHTML && !seed ) { + + if ( (match = rquickExpr.exec( selector )) ) { + if ( (m = match[1]) ) { + if ( nodeType === 9 ) { + elem = context.getElementById( m ); + if ( elem && elem.parentNode ) { + if ( elem.id === m ) { + results.push( elem ); + return results; + } + } else { + return results; + } + } else { + if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) && + contains( context, elem ) && elem.id === m ) { + results.push( elem ); + return results; + } + } + + } else if ( match[2] ) { + push.apply( results, context.getElementsByTagName( selector ) ); + return results; + + } else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) { + push.apply( results, context.getElementsByClassName( m ) ); + return results; + } + } + + if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { + nid = old = expando; + newContext = context; + newSelector = nodeType === 9 && selector; + + if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) { + groups = tokenize( selector ); + + if ( (old = context.getAttribute("id")) ) { + nid = old.replace( rescape, "\\$&" ); + } else { + context.setAttribute( "id", nid ); + } + nid = "[id='" + nid + "'] "; + + i = groups.length; + while ( i-- ) { + groups[i] = nid + toSelector( groups[i] ); + } + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context; + newSelector = groups.join(","); + } + + if ( newSelector ) { + try { + push.apply( results, + newContext.querySelectorAll( newSelector ) + ); + return results; + } catch(qsaError) { + } finally { + if ( !old ) { + context.removeAttribute("id"); + } + } + } + } + } + + return select( selector.replace( rtrim, "$1" ), context, results, seed ); +} + +/** + * Create key-value caches of limited size + * @returns {Function(string, Object)} Returns the Object data after storing it on itself with + * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) + * deleting the oldest entry + */ +function createCache() { + var keys = []; + + function cache( key, value ) { + if ( keys.push( key + " " ) > Expr.cacheLength ) { + delete cache[ keys.shift() ]; + } + return (cache[ key + " " ] = value); + } + return cache; +} + +/** + * Mark a function for special use by Sizzle + * @param {Function} fn The function to mark + */ +function markFunction( fn ) { + fn[ expando ] = true; + return fn; +} + +/** + * Support testing using an element + * @param {Function} fn Passed the created div and expects a boolean result + */ +function assert( fn ) { + var div = document.createElement("div"); + + try { + return !!fn( div ); + } catch (e) { + return false; + } finally { + if ( div.parentNode ) { + div.parentNode.removeChild( div ); + } + div = null; + } +} + +/** + * Adds the same handler for all of the specified attrs + * @param {String} attrs Pipe-separated list of attributes + * @param {Function} handler The method that will be applied + */ +function addHandle( attrs, handler ) { + var arr = attrs.split("|"), + i = attrs.length; + + while ( i-- ) { + Expr.attrHandle[ arr[i] ] = handler; + } +} + +/** + * Checks document order of two siblings + * @param {Element} a + * @param {Element} b + * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b + */ +function siblingCheck( a, b ) { + var cur = b && a, + diff = cur && a.nodeType === 1 && b.nodeType === 1 && + ( ~b.sourceIndex || MAX_NEGATIVE ) - + ( ~a.sourceIndex || MAX_NEGATIVE ); + + if ( diff ) { + return diff; + } + + if ( cur ) { + while ( (cur = cur.nextSibling) ) { + if ( cur === b ) { + return -1; + } + } + } + + return a ? 1 : -1; +} + +/** + * Returns a function to use in pseudos for input types + * @param {String} type + */ +function createInputPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for buttons + * @param {String} type + */ +function createButtonPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return (name === "input" || name === "button") && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for positionals + * @param {Function} fn + */ +function createPositionalPseudo( fn ) { + return markFunction(function( argument ) { + argument = +argument; + return markFunction(function( seed, matches ) { + var j, + matchIndexes = fn( [], seed.length, argument ), + i = matchIndexes.length; + + while ( i-- ) { + if ( seed[ (j = matchIndexes[i]) ] ) { + seed[j] = !(matches[j] = seed[j]); + } + } + }); + }); +} + +/** + * Checks a node for validity as a Sizzle context + * @param {Element|Object=} context + * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value + */ +function testContext( context ) { + return context && typeof context.getElementsByTagName !== strundefined && context; +} + +support = Sizzle.support = {}; + +/** + * Detects XML nodes + * @param {Element|Object} elem An element or a document + * @returns {Boolean} True iff elem is a non-HTML XML node + */ +isXML = Sizzle.isXML = function( elem ) { + var documentElement = elem && (elem.ownerDocument || elem).documentElement; + return documentElement ? documentElement.nodeName !== "HTML" : false; +}; + +/** + * Sets document-related variables once based on the current document + * @param {Element|Object} [doc] An element or document object to use to set the document + * @returns {Object} Returns the current document + */ +setDocument = Sizzle.setDocument = function( node ) { + var hasCompare, + doc = node ? node.ownerDocument || node : preferredDoc, + parent = doc.defaultView; + + if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { + return document; + } + + document = doc; + docElem = doc.documentElement; + + documentIsHTML = !isXML( doc ); + + if ( parent && parent !== parent.top ) { + if ( parent.addEventListener ) { + parent.addEventListener( "unload", function() { + setDocument(); + }, false ); + } else if ( parent.attachEvent ) { + parent.attachEvent( "onunload", function() { + setDocument(); + }); + } + } + + /* Attributes + ---------------------------------------------------------------------- */ + + support.attributes = assert(function( div ) { + div.className = "i"; + return !div.getAttribute("className"); + }); + + /* getElement(s)By* + ---------------------------------------------------------------------- */ + + support.getElementsByTagName = assert(function( div ) { + div.appendChild( doc.createComment("") ); + return !div.getElementsByTagName("*").length; + }); + + support.getElementsByClassName = rnative.test( doc.getElementsByClassName ) && assert(function( div ) { + div.innerHTML = "
"; + + div.firstChild.className = "i"; + return div.getElementsByClassName("i").length === 2; + }); + + support.getById = assert(function( div ) { + docElem.appendChild( div ).id = expando; + return !doc.getElementsByName || !doc.getElementsByName( expando ).length; + }); + + if ( support.getById ) { + Expr.find["ID"] = function( id, context ) { + if ( typeof context.getElementById !== strundefined && documentIsHTML ) { + var m = context.getElementById( id ); + return m && m.parentNode ? [m] : []; + } + }; + Expr.filter["ID"] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + return elem.getAttribute("id") === attrId; + }; + }; + } else { + delete Expr.find["ID"]; + + Expr.filter["ID"] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id"); + return node && node.value === attrId; + }; + }; + } + + Expr.find["TAG"] = support.getElementsByTagName ? + function( tag, context ) { + if ( typeof context.getElementsByTagName !== strundefined ) { + return context.getElementsByTagName( tag ); + } + } : + function( tag, context ) { + var elem, + tmp = [], + i = 0, + results = context.getElementsByTagName( tag ); + + if ( tag === "*" ) { + while ( (elem = results[i++]) ) { + if ( elem.nodeType === 1 ) { + tmp.push( elem ); + } + } + + return tmp; + } + return results; + }; + + Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { + if ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) { + return context.getElementsByClassName( className ); + } + }; + + /* QSA/matchesSelector + ---------------------------------------------------------------------- */ + + + rbuggyMatches = []; + + rbuggyQSA = []; + + if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) { + assert(function( div ) { + div.innerHTML = ""; + + if ( div.querySelectorAll("[t^='']").length ) { + rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); + } + + if ( !div.querySelectorAll("[selected]").length ) { + rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); + } + + if ( !div.querySelectorAll(":checked").length ) { + rbuggyQSA.push(":checked"); + } + }); + + assert(function( div ) { + var input = doc.createElement("input"); + input.setAttribute( "type", "hidden" ); + div.appendChild( input ).setAttribute( "name", "D" ); + + if ( div.querySelectorAll("[name=d]").length ) { + rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); + } + + if ( !div.querySelectorAll(":enabled").length ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + div.querySelectorAll("*,:x"); + rbuggyQSA.push(",.*:"); + }); + } + + if ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector || + docElem.mozMatchesSelector || + docElem.oMatchesSelector || + docElem.msMatchesSelector) )) ) { + + assert(function( div ) { + support.disconnectedMatch = matches.call( div, "div" ); + + matches.call( div, "[s!='']:x" ); + rbuggyMatches.push( "!=", pseudos ); + }); + } + + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); + + /* Contains + ---------------------------------------------------------------------- */ + hasCompare = rnative.test( docElem.compareDocumentPosition ); + + contains = hasCompare || rnative.test( docElem.contains ) ? + function( a, b ) { + var adown = a.nodeType === 9 ? a.documentElement : a, + bup = b && b.parentNode; + return a === bup || !!( bup && bup.nodeType === 1 && ( + adown.contains ? + adown.contains( bup ) : + a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 + )); + } : + function( a, b ) { + if ( b ) { + while ( (b = b.parentNode) ) { + if ( b === a ) { + return true; + } + } + } + return false; + }; + + /* Sorting + ---------------------------------------------------------------------- */ + + sortOrder = hasCompare ? + function( a, b ) { + + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; + if ( compare ) { + return compare; + } + + compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? + a.compareDocumentPosition( b ) : + + 1; + + if ( compare & 1 || + (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { + + if ( a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { + return -1; + } + if ( b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { + return 1; + } + + return sortInput ? + ( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) : + 0; + } + + return compare & 4 ? -1 : 1; + } : + function( a, b ) { + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + var cur, + i = 0, + aup = a.parentNode, + bup = b.parentNode, + ap = [ a ], + bp = [ b ]; + + if ( !aup || !bup ) { + return a === doc ? -1 : + b === doc ? 1 : + aup ? -1 : + bup ? 1 : + sortInput ? + ( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) : + 0; + + } else if ( aup === bup ) { + return siblingCheck( a, b ); + } + + cur = a; + while ( (cur = cur.parentNode) ) { + ap.unshift( cur ); + } + cur = b; + while ( (cur = cur.parentNode) ) { + bp.unshift( cur ); + } + + while ( ap[i] === bp[i] ) { + i++; + } + + return i ? + siblingCheck( ap[i], bp[i] ) : + + ap[i] === preferredDoc ? -1 : + bp[i] === preferredDoc ? 1 : + 0; + }; + + return doc; +}; + +Sizzle.matches = function( expr, elements ) { + return Sizzle( expr, null, null, elements ); +}; + +Sizzle.matchesSelector = function( elem, expr ) { + if ( ( elem.ownerDocument || elem ) !== document ) { + setDocument( elem ); + } + + expr = expr.replace( rattributeQuotes, "='$1']" ); + + if ( support.matchesSelector && documentIsHTML && + ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && + ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { + + try { + var ret = matches.call( elem, expr ); + + if ( ret || support.disconnectedMatch || + elem.document && elem.document.nodeType !== 11 ) { + return ret; + } + } catch(e) {} + } + + return Sizzle( expr, document, null, [elem] ).length > 0; +}; + +Sizzle.contains = function( context, elem ) { + if ( ( context.ownerDocument || context ) !== document ) { + setDocument( context ); + } + return contains( context, elem ); +}; + +Sizzle.attr = function( elem, name ) { + if ( ( elem.ownerDocument || elem ) !== document ) { + setDocument( elem ); + } + + var fn = Expr.attrHandle[ name.toLowerCase() ], + val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? + fn( elem, name, !documentIsHTML ) : + undefined; + + return val !== undefined ? + val : + support.attributes || !documentIsHTML ? + elem.getAttribute( name ) : + (val = elem.getAttributeNode(name)) && val.specified ? + val.value : + null; +}; + +Sizzle.error = function( msg ) { + throw new Error( "Syntax error, unrecognized expression: " + msg ); +}; + +/** + * Document sorting and removing duplicates + * @param {ArrayLike} results + */ +Sizzle.uniqueSort = function( results ) { + var elem, + duplicates = [], + j = 0, + i = 0; + + hasDuplicate = !support.detectDuplicates; + sortInput = !support.sortStable && results.slice( 0 ); + results.sort( sortOrder ); + + if ( hasDuplicate ) { + while ( (elem = results[i++]) ) { + if ( elem === results[ i ] ) { + j = duplicates.push( i ); + } + } + while ( j-- ) { + results.splice( duplicates[ j ], 1 ); + } + } + + sortInput = null; + + return results; +}; + +/** + * Utility function for retrieving the text value of an array of DOM nodes + * @param {Array|Element} elem + */ +getText = Sizzle.getText = function( elem ) { + var node, + ret = "", + i = 0, + nodeType = elem.nodeType; + + if ( !nodeType ) { + while ( (node = elem[i++]) ) { + ret += getText( node ); + } + } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + if ( typeof elem.textContent === "string" ) { + return elem.textContent; + } else { + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + ret += getText( elem ); + } + } + } else if ( nodeType === 3 || nodeType === 4 ) { + return elem.nodeValue; + } + + return ret; +}; + +Expr = Sizzle.selectors = { + + cacheLength: 50, + + createPseudo: markFunction, + + match: matchExpr, + + attrHandle: {}, + + find: {}, + + relative: { + ">": { dir: "parentNode", first: true }, + " ": { dir: "parentNode" }, + "+": { dir: "previousSibling", first: true }, + "~": { dir: "previousSibling" } + }, + + preFilter: { + "ATTR": function( match ) { + match[1] = match[1].replace( runescape, funescape ); + + match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape ); + + if ( match[2] === "~=" ) { + match[3] = " " + match[3] + " "; + } + + return match.slice( 0, 4 ); + }, + + "CHILD": function( match ) { + /* matches from matchExpr["CHILD"] + 1 type (only|nth|...) + 2 what (child|of-type) + 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) + 4 xn-component of xn+y argument ([+-]?\d*n|) + 5 sign of xn-component + 6 x of xn-component + 7 sign of y-component + 8 y of y-component + */ + match[1] = match[1].toLowerCase(); + + if ( match[1].slice( 0, 3 ) === "nth" ) { + if ( !match[3] ) { + Sizzle.error( match[0] ); + } + + match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); + match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); + + } else if ( match[3] ) { + Sizzle.error( match[0] ); + } + + return match; + }, + + "PSEUDO": function( match ) { + var excess, + unquoted = !match[5] && match[2]; + + if ( matchExpr["CHILD"].test( match[0] ) ) { + return null; + } + + if ( match[3] && match[4] !== undefined ) { + match[2] = match[4]; + + } else if ( unquoted && rpseudo.test( unquoted ) && + (excess = tokenize( unquoted, true )) && + (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { + + match[0] = match[0].slice( 0, excess ); + match[2] = unquoted.slice( 0, excess ); + } + + return match.slice( 0, 3 ); + } + }, + + filter: { + + "TAG": function( nodeNameSelector ) { + var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); + return nodeNameSelector === "*" ? + function() { return true; } : + function( elem ) { + return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; + }; + }, + + "CLASS": function( className ) { + var pattern = classCache[ className + " " ]; + + return pattern || + (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && + classCache( className, function( elem ) { + return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "" ); + }); + }, + + "ATTR": function( name, operator, check ) { + return function( elem ) { + var result = Sizzle.attr( elem, name ); + + if ( result == null ) { + return operator === "!="; + } + if ( !operator ) { + return true; + } + + result += ""; + + return operator === "=" ? result === check : + operator === "!=" ? result !== check : + operator === "^=" ? check && result.indexOf( check ) === 0 : + operator === "*=" ? check && result.indexOf( check ) > -1 : + operator === "$=" ? check && result.slice( -check.length ) === check : + operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 : + operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : + false; + }; + }, + + "CHILD": function( type, what, argument, first, last ) { + var simple = type.slice( 0, 3 ) !== "nth", + forward = type.slice( -4 ) !== "last", + ofType = what === "of-type"; + + return first === 1 && last === 0 ? + + function( elem ) { + return !!elem.parentNode; + } : + + function( elem, context, xml ) { + var cache, outerCache, node, diff, nodeIndex, start, + dir = simple !== forward ? "nextSibling" : "previousSibling", + parent = elem.parentNode, + name = ofType && elem.nodeName.toLowerCase(), + useCache = !xml && !ofType; + + if ( parent ) { + + if ( simple ) { + while ( dir ) { + node = elem; + while ( (node = node[ dir ]) ) { + if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) { + return false; + } + } + start = dir = type === "only" && !start && "nextSibling"; + } + return true; + } + + start = [ forward ? parent.firstChild : parent.lastChild ]; + + if ( forward && useCache ) { + outerCache = parent[ expando ] || (parent[ expando ] = {}); + cache = outerCache[ type ] || []; + nodeIndex = cache[0] === dirruns && cache[1]; + diff = cache[0] === dirruns && cache[2]; + node = nodeIndex && parent.childNodes[ nodeIndex ]; + + while ( (node = ++nodeIndex && node && node[ dir ] || + + (diff = nodeIndex = 0) || start.pop()) ) { + + if ( node.nodeType === 1 && ++diff && node === elem ) { + outerCache[ type ] = [ dirruns, nodeIndex, diff ]; + break; + } + } + + } else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) { + diff = cache[1]; + + } else { + while ( (node = ++nodeIndex && node && node[ dir ] || + (diff = nodeIndex = 0) || start.pop()) ) { + + if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) { + if ( useCache ) { + (node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ]; + } + + if ( node === elem ) { + break; + } + } + } + } + + diff -= last; + return diff === first || ( diff % first === 0 && diff / first >= 0 ); + } + }; + }, + + "PSEUDO": function( pseudo, argument ) { + var args, + fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || + Sizzle.error( "unsupported pseudo: " + pseudo ); + + if ( fn[ expando ] ) { + return fn( argument ); + } + + if ( fn.length > 1 ) { + args = [ pseudo, pseudo, "", argument ]; + return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? + markFunction(function( seed, matches ) { + var idx, + matched = fn( seed, argument ), + i = matched.length; + while ( i-- ) { + idx = indexOf.call( seed, matched[i] ); + seed[ idx ] = !( matches[ idx ] = matched[i] ); + } + }) : + function( elem ) { + return fn( elem, 0, args ); + }; + } + + return fn; + } + }, + + pseudos: { + "not": markFunction(function( selector ) { + var input = [], + results = [], + matcher = compile( selector.replace( rtrim, "$1" ) ); + + return matcher[ expando ] ? + markFunction(function( seed, matches, context, xml ) { + var elem, + unmatched = matcher( seed, null, xml, [] ), + i = seed.length; + + while ( i-- ) { + if ( (elem = unmatched[i]) ) { + seed[i] = !(matches[i] = elem); + } + } + }) : + function( elem, context, xml ) { + input[0] = elem; + matcher( input, null, xml, results ); + return !results.pop(); + }; + }), + + "has": markFunction(function( selector ) { + return function( elem ) { + return Sizzle( selector, elem ).length > 0; + }; + }), + + "contains": markFunction(function( text ) { + return function( elem ) { + return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; + }; + }), + + "lang": markFunction( function( lang ) { + if ( !ridentifier.test(lang || "") ) { + Sizzle.error( "unsupported lang: " + lang ); + } + lang = lang.replace( runescape, funescape ).toLowerCase(); + return function( elem ) { + var elemLang; + do { + if ( (elemLang = documentIsHTML ? + elem.lang : + elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { + + elemLang = elemLang.toLowerCase(); + return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; + } + } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); + return false; + }; + }), + + "target": function( elem ) { + var hash = window.location && window.location.hash; + return hash && hash.slice( 1 ) === elem.id; + }, + + "root": function( elem ) { + return elem === docElem; + }, + + "focus": function( elem ) { + return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); + }, + + "enabled": function( elem ) { + return elem.disabled === false; + }, + + "disabled": function( elem ) { + return elem.disabled === true; + }, + + "checked": function( elem ) { + var nodeName = elem.nodeName.toLowerCase(); + return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); + }, + + "selected": function( elem ) { + if ( elem.parentNode ) { + elem.parentNode.selectedIndex; + } + + return elem.selected === true; + }, + + "empty": function( elem ) { + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + if ( elem.nodeType < 6 ) { + return false; + } + } + return true; + }, + + "parent": function( elem ) { + return !Expr.pseudos["empty"]( elem ); + }, + + "header": function( elem ) { + return rheader.test( elem.nodeName ); + }, + + "input": function( elem ) { + return rinputs.test( elem.nodeName ); + }, + + "button": function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === "button" || name === "button"; + }, + + "text": function( elem ) { + var attr; + return elem.nodeName.toLowerCase() === "input" && + elem.type === "text" && + + ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); + }, + + "first": createPositionalPseudo(function() { + return [ 0 ]; + }), + + "last": createPositionalPseudo(function( matchIndexes, length ) { + return [ length - 1 ]; + }), + + "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { + return [ argument < 0 ? argument + length : argument ]; + }), + + "even": createPositionalPseudo(function( matchIndexes, length ) { + var i = 0; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "odd": createPositionalPseudo(function( matchIndexes, length ) { + var i = 1; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; --i >= 0; ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; ++i < length; ) { + matchIndexes.push( i ); + } + return matchIndexes; + }) + } +}; + +Expr.pseudos["nth"] = Expr.pseudos["eq"]; + +for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { + Expr.pseudos[ i ] = createInputPseudo( i ); +} +for ( i in { submit: true, reset: true } ) { + Expr.pseudos[ i ] = createButtonPseudo( i ); +} + +function setFilters() {} +setFilters.prototype = Expr.filters = Expr.pseudos; +Expr.setFilters = new setFilters(); + +function tokenize( selector, parseOnly ) { + var matched, match, tokens, type, + soFar, groups, preFilters, + cached = tokenCache[ selector + " " ]; + + if ( cached ) { + return parseOnly ? 0 : cached.slice( 0 ); + } + + soFar = selector; + groups = []; + preFilters = Expr.preFilter; + + while ( soFar ) { + + if ( !matched || (match = rcomma.exec( soFar )) ) { + if ( match ) { + soFar = soFar.slice( match[0].length ) || soFar; + } + groups.push( (tokens = []) ); + } + + matched = false; + + if ( (match = rcombinators.exec( soFar )) ) { + matched = match.shift(); + tokens.push({ + value: matched, + type: match[0].replace( rtrim, " " ) + }); + soFar = soFar.slice( matched.length ); + } + + for ( type in Expr.filter ) { + if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || + (match = preFilters[ type ]( match ))) ) { + matched = match.shift(); + tokens.push({ + value: matched, + type: type, + matches: match + }); + soFar = soFar.slice( matched.length ); + } + } + + if ( !matched ) { + break; + } + } + + return parseOnly ? + soFar.length : + soFar ? + Sizzle.error( selector ) : + tokenCache( selector, groups ).slice( 0 ); +} + +function toSelector( tokens ) { + var i = 0, + len = tokens.length, + selector = ""; + for ( ; i < len; i++ ) { + selector += tokens[i].value; + } + return selector; +} + +function addCombinator( matcher, combinator, base ) { + var dir = combinator.dir, + checkNonElements = base && dir === "parentNode", + doneName = done++; + + return combinator.first ? + function( elem, context, xml ) { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + return matcher( elem, context, xml ); + } + } + } : + + function( elem, context, xml ) { + var oldCache, outerCache, + newCache = [ dirruns, doneName ]; + + if ( xml ) { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + if ( matcher( elem, context, xml ) ) { + return true; + } + } + } + } else { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + outerCache = elem[ expando ] || (elem[ expando ] = {}); + if ( (oldCache = outerCache[ dir ]) && + oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { + + return (newCache[ 2 ] = oldCache[ 2 ]); + } else { + outerCache[ dir ] = newCache; + + if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { + return true; + } + } + } + } + } + }; +} + +function elementMatcher( matchers ) { + return matchers.length > 1 ? + function( elem, context, xml ) { + var i = matchers.length; + while ( i-- ) { + if ( !matchers[i]( elem, context, xml ) ) { + return false; + } + } + return true; + } : + matchers[0]; +} + +function multipleContexts( selector, contexts, results ) { + var i = 0, + len = contexts.length; + for ( ; i < len; i++ ) { + Sizzle( selector, contexts[i], results ); + } + return results; +} + +function condense( unmatched, map, filter, context, xml ) { + var elem, + newUnmatched = [], + i = 0, + len = unmatched.length, + mapped = map != null; + + for ( ; i < len; i++ ) { + if ( (elem = unmatched[i]) ) { + if ( !filter || filter( elem, context, xml ) ) { + newUnmatched.push( elem ); + if ( mapped ) { + map.push( i ); + } + } + } + } + + return newUnmatched; +} + +function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { + if ( postFilter && !postFilter[ expando ] ) { + postFilter = setMatcher( postFilter ); + } + if ( postFinder && !postFinder[ expando ] ) { + postFinder = setMatcher( postFinder, postSelector ); + } + return markFunction(function( seed, results, context, xml ) { + var temp, i, elem, + preMap = [], + postMap = [], + preexisting = results.length, + + elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), + + matcherIn = preFilter && ( seed || !selector ) ? + condense( elems, preMap, preFilter, context, xml ) : + elems, + + matcherOut = matcher ? + postFinder || ( seed ? preFilter : preexisting || postFilter ) ? + + [] : + + results : + matcherIn; + + if ( matcher ) { + matcher( matcherIn, matcherOut, context, xml ); + } + + if ( postFilter ) { + temp = condense( matcherOut, postMap ); + postFilter( temp, [], context, xml ); + + i = temp.length; + while ( i-- ) { + if ( (elem = temp[i]) ) { + matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); + } + } + } + + if ( seed ) { + if ( postFinder || preFilter ) { + if ( postFinder ) { + temp = []; + i = matcherOut.length; + while ( i-- ) { + if ( (elem = matcherOut[i]) ) { + temp.push( (matcherIn[i] = elem) ); + } + } + postFinder( null, (matcherOut = []), temp, xml ); + } + + i = matcherOut.length; + while ( i-- ) { + if ( (elem = matcherOut[i]) && + (temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) { + + seed[temp] = !(results[temp] = elem); + } + } + } + + } else { + matcherOut = condense( + matcherOut === results ? + matcherOut.splice( preexisting, matcherOut.length ) : + matcherOut + ); + if ( postFinder ) { + postFinder( null, results, matcherOut, xml ); + } else { + push.apply( results, matcherOut ); + } + } + }); +} + +function matcherFromTokens( tokens ) { + var checkContext, matcher, j, + len = tokens.length, + leadingRelative = Expr.relative[ tokens[0].type ], + implicitRelative = leadingRelative || Expr.relative[" "], + i = leadingRelative ? 1 : 0, + + matchContext = addCombinator( function( elem ) { + return elem === checkContext; + }, implicitRelative, true ), + matchAnyContext = addCombinator( function( elem ) { + return indexOf.call( checkContext, elem ) > -1; + }, implicitRelative, true ), + matchers = [ function( elem, context, xml ) { + return ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( + (checkContext = context).nodeType ? + matchContext( elem, context, xml ) : + matchAnyContext( elem, context, xml ) ); + } ]; + + for ( ; i < len; i++ ) { + if ( (matcher = Expr.relative[ tokens[i].type ]) ) { + matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; + } else { + matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); + + if ( matcher[ expando ] ) { + j = ++i; + for ( ; j < len; j++ ) { + if ( Expr.relative[ tokens[j].type ] ) { + break; + } + } + return setMatcher( + i > 1 && elementMatcher( matchers ), + i > 1 && toSelector( + tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) + ).replace( rtrim, "$1" ), + matcher, + i < j && matcherFromTokens( tokens.slice( i, j ) ), + j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), + j < len && toSelector( tokens ) + ); + } + matchers.push( matcher ); + } + } + + return elementMatcher( matchers ); +} + +function matcherFromGroupMatchers( elementMatchers, setMatchers ) { + var bySet = setMatchers.length > 0, + byElement = elementMatchers.length > 0, + superMatcher = function( seed, context, xml, results, outermost ) { + var elem, j, matcher, + matchedCount = 0, + i = "0", + unmatched = seed && [], + setMatched = [], + contextBackup = outermostContext, + elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), + dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), + len = elems.length; + + if ( outermost ) { + outermostContext = context !== document && context; + } + + for ( ; i !== len && (elem = elems[i]) != null; i++ ) { + if ( byElement && elem ) { + j = 0; + while ( (matcher = elementMatchers[j++]) ) { + if ( matcher( elem, context, xml ) ) { + results.push( elem ); + break; + } + } + if ( outermost ) { + dirruns = dirrunsUnique; + } + } + + if ( bySet ) { + if ( (elem = !matcher && elem) ) { + matchedCount--; + } + + if ( seed ) { + unmatched.push( elem ); + } + } + } + + matchedCount += i; + if ( bySet && i !== matchedCount ) { + j = 0; + while ( (matcher = setMatchers[j++]) ) { + matcher( unmatched, setMatched, context, xml ); + } + + if ( seed ) { + if ( matchedCount > 0 ) { + while ( i-- ) { + if ( !(unmatched[i] || setMatched[i]) ) { + setMatched[i] = pop.call( results ); + } + } + } + + setMatched = condense( setMatched ); + } + + push.apply( results, setMatched ); + + if ( outermost && !seed && setMatched.length > 0 && + ( matchedCount + setMatchers.length ) > 1 ) { + + Sizzle.uniqueSort( results ); + } + } + + if ( outermost ) { + dirruns = dirrunsUnique; + outermostContext = contextBackup; + } + + return unmatched; + }; + + return bySet ? + markFunction( superMatcher ) : + superMatcher; +} + +compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { + var i, + setMatchers = [], + elementMatchers = [], + cached = compilerCache[ selector + " " ]; + + if ( !cached ) { + if ( !match ) { + match = tokenize( selector ); + } + i = match.length; + while ( i-- ) { + cached = matcherFromTokens( match[i] ); + if ( cached[ expando ] ) { + setMatchers.push( cached ); + } else { + elementMatchers.push( cached ); + } + } + + cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); + + cached.selector = selector; + } + return cached; +}; + +/** + * A low-level selection function that works with Sizzle's compiled + * selector functions + * @param {String|Function} selector A selector or a pre-compiled + * selector function built with Sizzle.compile + * @param {Element} context + * @param {Array} [results] + * @param {Array} [seed] A set of elements to match against + */ +select = Sizzle.select = function( selector, context, results, seed ) { + var i, tokens, token, type, find, + compiled = typeof selector === "function" && selector, + match = !seed && tokenize( (selector = compiled.selector || selector) ); + + results = results || []; + + if ( match.length === 1 ) { + + tokens = match[0] = match[0].slice( 0 ); + if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && + support.getById && context.nodeType === 9 && documentIsHTML && + Expr.relative[ tokens[1].type ] ) { + + context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; + if ( !context ) { + return results; + + } else if ( compiled ) { + context = context.parentNode; + } + + selector = selector.slice( tokens.shift().value.length ); + } + + i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; + while ( i-- ) { + token = tokens[i]; + + if ( Expr.relative[ (type = token.type) ] ) { + break; + } + if ( (find = Expr.find[ type ]) ) { + if ( (seed = find( + token.matches[0].replace( runescape, funescape ), + rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context + )) ) { + + tokens.splice( i, 1 ); + selector = seed.length && toSelector( tokens ); + if ( !selector ) { + push.apply( results, seed ); + return results; + } + + break; + } + } + } + } + + ( compiled || compile( selector, match ) )( + seed, + context, + !documentIsHTML, + results, + rsibling.test( selector ) && testContext( context.parentNode ) || context + ); + return results; +}; + + +support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; + +support.detectDuplicates = !!hasDuplicate; + +setDocument(); + +support.sortDetached = assert(function( div1 ) { + return div1.compareDocumentPosition( document.createElement("div") ) & 1; +}); + +if ( !assert(function( div ) { + div.innerHTML = ""; + return div.firstChild.getAttribute("href") === "#" ; +}) ) { + addHandle( "type|href|height|width", function( elem, name, isXML ) { + if ( !isXML ) { + return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); + } + }); +} + +if ( !support.attributes || !assert(function( div ) { + div.innerHTML = ""; + div.firstChild.setAttribute( "value", "" ); + return div.firstChild.getAttribute( "value" ) === ""; +}) ) { + addHandle( "value", function( elem, name, isXML ) { + if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { + return elem.defaultValue; + } + }); +} + +if ( !assert(function( div ) { + return div.getAttribute("disabled") == null; +}) ) { + addHandle( booleans, function( elem, name, isXML ) { + var val; + if ( !isXML ) { + return elem[ name ] === true ? name.toLowerCase() : + (val = elem.getAttributeNode( name )) && val.specified ? + val.value : + null; + } + }); +} + +if ( typeof define === "function" && define.amd ) { + define(function() { return Sizzle; }); +} else if ( typeof module !== "undefined" && module.exports ) { + module.exports = Sizzle; +} else { + window.Sizzle = Sizzle; +} + +})( window ); + +;(function() { + if (typeof Sizzle !== 'undefined') { + return; + } + + if (typeof define !== 'undefined' && define.amd) { + window.Sizzle = Prototype._actual_sizzle; + window.define = Prototype._original_define; + delete Prototype._actual_sizzle; + delete Prototype._original_define; + } else if (typeof module !== 'undefined' && module.exports) { + window.Sizzle = module.exports; + module.exports = {}; + } +})(); + +;(function(engine) { + var extendElements = Prototype.Selector.extendElements; + + function select(selector, scope) { + return extendElements(engine(selector, scope || document)); + } + + function match(element, selector) { + return engine.matches(selector, [element]).length == 1; + } + + Prototype.Selector.engine = engine; + Prototype.Selector.select = select; + Prototype.Selector.match = match; +})(Sizzle); + +window.Sizzle = Prototype._original_property; +delete Prototype._original_property; + +var Form = { + reset: function(form) { + form = $(form); + form.reset(); + return form; + }, + + serializeElements: function(elements, options) { + if (typeof options != 'object') options = { hash: !!options }; + else if (Object.isUndefined(options.hash)) options.hash = true; + var key, value, submitted = false, submit = options.submit, accumulator, initial; + + if (options.hash) { + initial = {}; + accumulator = function(result, key, value) { + if (key in result) { + if (!Object.isArray(result[key])) result[key] = [result[key]]; + result[key] = result[key].concat(value); + } else result[key] = value; + return result; + }; + } else { + initial = ''; + accumulator = function(result, key, values) { + if (!Object.isArray(values)) {values = [values];} + if (!values.length) {return result;} + var encodedKey = encodeURIComponent(key).gsub(/%20/, '+'); + return result + (result ? "&" : "") + values.map(function (value) { + value = value.gsub(/(\r)?\n/, '\r\n'); + value = encodeURIComponent(value); + value = value.gsub(/%20/, '+'); + return encodedKey + "=" + value; + }).join("&"); + }; + } + + return elements.inject(initial, function(result, element) { + if (!element.disabled && element.name) { + key = element.name; value = $(element).getValue(); + if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted && + submit !== false && (!submit || key == submit) && (submitted = true)))) { + result = accumulator(result, key, value); + } + } + return result; + }); + } +}; + +Form.Methods = { + serialize: function(form, options) { + return Form.serializeElements(Form.getElements(form), options); + }, + + + getElements: function(form) { + var elements = $(form).getElementsByTagName('*'); + var element, results = [], serializers = Form.Element.Serializers; + + for (var i = 0; element = elements[i]; i++) { + if (serializers[element.tagName.toLowerCase()]) + results.push(Element.extend(element)); + } + return results; + }, + + getInputs: function(form, typeName, name) { + form = $(form); + var inputs = form.getElementsByTagName('input'); + + if (!typeName && !name) return $A(inputs).map(Element.extend); + + for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) { + var input = inputs[i]; + if ((typeName && input.type != typeName) || (name && input.name != name)) + continue; + matchingInputs.push(Element.extend(input)); + } + + return matchingInputs; + }, + + disable: function(form) { + form = $(form); + Form.getElements(form).invoke('disable'); + return form; + }, + + enable: function(form) { + form = $(form); + Form.getElements(form).invoke('enable'); + return form; + }, + + findFirstElement: function(form) { + var elements = $(form).getElements().findAll(function(element) { + return 'hidden' != element.type && !element.disabled; + }); + var firstByIndex = elements.findAll(function(element) { + return element.hasAttribute('tabIndex') && element.tabIndex >= 0; + }).sortBy(function(element) { return element.tabIndex }).first(); + + return firstByIndex ? firstByIndex : elements.find(function(element) { + return /^(?:input|select|textarea)$/i.test(element.tagName); + }); + }, + + focusFirstElement: function(form) { + form = $(form); + var element = form.findFirstElement(); + if (element) element.activate(); + return form; + }, + + request: function(form, options) { + form = $(form), options = Object.clone(options || { }); + + var params = options.parameters, action = form.readAttribute('action') || ''; + if (action.blank()) action = window.location.href; + options.parameters = form.serialize(true); + + if (params) { + if (Object.isString(params)) params = params.toQueryParams(); + Object.extend(options.parameters, params); + } + + if (form.hasAttribute('method') && !options.method) + options.method = form.method; + + return new Ajax.Request(action, options); + } +}; + +/*--------------------------------------------------------------------------*/ + + +Form.Element = { + focus: function(element) { + $(element).focus(); + return element; + }, + + select: function(element) { + $(element).select(); + return element; + } +}; + +Form.Element.Methods = { + + serialize: function(element) { + element = $(element); + if (!element.disabled && element.name) { + var value = element.getValue(); + if (value != undefined) { + var pair = { }; + pair[element.name] = value; + return Object.toQueryString(pair); + } + } + return ''; + }, + + getValue: function(element) { + element = $(element); + var method = element.tagName.toLowerCase(); + return Form.Element.Serializers[method](element); + }, + + setValue: function(element, value) { + element = $(element); + var method = element.tagName.toLowerCase(); + Form.Element.Serializers[method](element, value); + return element; + }, + + clear: function(element) { + $(element).value = ''; + return element; + }, + + present: function(element) { + return $(element).value != ''; + }, + + activate: function(element) { + element = $(element); + try { + element.focus(); + if (element.select && (element.tagName.toLowerCase() != 'input' || + !(/^(?:button|reset|submit)$/i.test(element.type)))) + element.select(); + } catch (e) { } + return element; + }, + + disable: function(element) { + element = $(element); + element.disabled = true; + return element; + }, + + enable: function(element) { + element = $(element); + element.disabled = false; + return element; + } +}; + +/*--------------------------------------------------------------------------*/ + +var Field = Form.Element; + +var $F = Form.Element.Methods.getValue; + +/*--------------------------------------------------------------------------*/ + +Form.Element.Serializers = (function() { + function input(element, value) { + switch (element.type.toLowerCase()) { + case 'checkbox': + case 'radio': + return inputSelector(element, value); + default: + return valueSelector(element, value); + } + } + + function inputSelector(element, value) { + if (Object.isUndefined(value)) + return element.checked ? element.value : null; + else element.checked = !!value; + } + + function valueSelector(element, value) { + if (Object.isUndefined(value)) return element.value; + else element.value = value; + } + + function select(element, value) { + if (Object.isUndefined(value)) + return (element.type === 'select-one' ? selectOne : selectMany)(element); + + var opt, currentValue, single = !Object.isArray(value); + for (var i = 0, length = element.length; i < length; i++) { + opt = element.options[i]; + currentValue = this.optionValue(opt); + if (single) { + if (currentValue == value) { + opt.selected = true; + return; + } + } + else opt.selected = value.include(currentValue); + } + } + + function selectOne(element) { + var index = element.selectedIndex; + return index >= 0 ? optionValue(element.options[index]) : null; + } + + function selectMany(element) { + var values, length = element.length; + if (!length) return null; + + for (var i = 0, values = []; i < length; i++) { + var opt = element.options[i]; + if (opt.selected) values.push(optionValue(opt)); + } + return values; + } + + function optionValue(opt) { + return Element.hasAttribute(opt, 'value') ? opt.value : opt.text; + } + + return { + input: input, + inputSelector: inputSelector, + textarea: valueSelector, + select: select, + selectOne: selectOne, + selectMany: selectMany, + optionValue: optionValue, + button: valueSelector + }; +})(); + +/*--------------------------------------------------------------------------*/ + + +Abstract.TimedObserver = Class.create(PeriodicalExecuter, { + initialize: function($super, element, frequency, callback) { + $super(callback, frequency); + this.element = $(element); + this.lastValue = this.getValue(); + }, + + execute: function() { + var value = this.getValue(); + if (Object.isString(this.lastValue) && Object.isString(value) ? + this.lastValue != value : String(this.lastValue) != String(value)) { + this.callback(this.element, value); + this.lastValue = value; + } + } +}); + +Form.Element.Observer = Class.create(Abstract.TimedObserver, { + getValue: function() { + return Form.Element.getValue(this.element); + } +}); + +Form.Observer = Class.create(Abstract.TimedObserver, { + getValue: function() { + return Form.serialize(this.element); + } +}); + +/*--------------------------------------------------------------------------*/ + +Abstract.EventObserver = Class.create({ + initialize: function(element, callback) { + this.element = $(element); + this.callback = callback; + + this.lastValue = this.getValue(); + if (this.element.tagName.toLowerCase() == 'form') + this.registerFormCallbacks(); + else + this.registerCallback(this.element); + }, + + onElementEvent: function() { + var value = this.getValue(); + if (this.lastValue != value) { + this.callback(this.element, value); + this.lastValue = value; + } + }, + + registerFormCallbacks: function() { + Form.getElements(this.element).each(this.registerCallback, this); + }, + + registerCallback: function(element) { + if (element.type) { + switch (element.type.toLowerCase()) { + case 'checkbox': + case 'radio': + Event.observe(element, 'click', this.onElementEvent.bind(this)); + break; + default: + Event.observe(element, 'change', this.onElementEvent.bind(this)); + break; + } + } + } +}); + +Form.Element.EventObserver = Class.create(Abstract.EventObserver, { + getValue: function() { + return Form.Element.getValue(this.element); + } +}); + +Form.EventObserver = Class.create(Abstract.EventObserver, { + getValue: function() { + return Form.serialize(this.element); + } +}); +(function(GLOBAL) { + var DIV = document.createElement('div'); + var docEl = document.documentElement; + var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl + && 'onmouseleave' in docEl; + + var Event = { + KEY_BACKSPACE: 8, + KEY_TAB: 9, + KEY_RETURN: 13, + KEY_ESC: 27, + KEY_LEFT: 37, + KEY_UP: 38, + KEY_RIGHT: 39, + KEY_DOWN: 40, + KEY_DELETE: 46, + KEY_HOME: 36, + KEY_END: 35, + KEY_PAGEUP: 33, + KEY_PAGEDOWN: 34, + KEY_INSERT: 45 + }; + + + var isIELegacyEvent = function(event) { return false; }; + + if (window.attachEvent) { + if (window.addEventListener) { + isIELegacyEvent = function(event) { + return !(event instanceof window.Event); + }; + } else { + isIELegacyEvent = function(event) { return true; }; + } + } + + var _isButton; + + function _isButtonForDOMEvents(event, code) { + return event.which ? (event.which === code + 1) : (event.button === code); + } + + var legacyButtonMap = { 0: 1, 1: 4, 2: 2 }; + function _isButtonForLegacyEvents(event, code) { + return event.button === legacyButtonMap[code]; + } + + function _isButtonForWebKit(event, code) { + switch (code) { + case 0: return event.which == 1 && !event.metaKey; + case 1: return event.which == 2 || (event.which == 1 && event.metaKey); + case 2: return event.which == 3; + default: return false; + } + } + + if (window.attachEvent) { + if (!window.addEventListener) { + _isButton = _isButtonForLegacyEvents; + } else { + _isButton = function(event, code) { + return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) : + _isButtonForDOMEvents(event, code); + } + } + } else if (Prototype.Browser.WebKit) { + _isButton = _isButtonForWebKit; + } else { + _isButton = _isButtonForDOMEvents; + } + + function isLeftClick(event) { return _isButton(event, 0) } + + function isMiddleClick(event) { return _isButton(event, 1) } + + function isRightClick(event) { return _isButton(event, 2) } + + function element(event) { + return Element.extend(_element(event)); + } + + function _element(event) { + event = Event.extend(event); + + var node = event.target, type = event.type, + currentTarget = event.currentTarget; + + if (currentTarget && currentTarget.tagName) { + if (type === 'load' || type === 'error' || + (type === 'click' && currentTarget.tagName.toLowerCase() === 'input' + && currentTarget.type === 'radio')) + node = currentTarget; + } + + return node.nodeType == Node.TEXT_NODE ? node.parentNode : node; + } + + function findElement(event, expression) { + var element = _element(event), selector = Prototype.Selector; + if (!expression) return Element.extend(element); + while (element) { + if (Object.isElement(element) && selector.match(element, expression)) + return Element.extend(element); + element = element.parentNode; + } + } + + function pointer(event) { + return { x: pointerX(event), y: pointerY(event) }; + } + + function pointerX(event) { + var docElement = document.documentElement, + body = document.body || { scrollLeft: 0 }; + + return event.pageX || (event.clientX + + (docElement.scrollLeft || body.scrollLeft) - + (docElement.clientLeft || 0)); + } + + function pointerY(event) { + var docElement = document.documentElement, + body = document.body || { scrollTop: 0 }; + + return event.pageY || (event.clientY + + (docElement.scrollTop || body.scrollTop) - + (docElement.clientTop || 0)); + } + + + function stop(event) { + Event.extend(event); + event.preventDefault(); + event.stopPropagation(); + + event.stopped = true; + } + + + Event.Methods = { + isLeftClick: isLeftClick, + isMiddleClick: isMiddleClick, + isRightClick: isRightClick, + + element: element, + findElement: findElement, + + pointer: pointer, + pointerX: pointerX, + pointerY: pointerY, + + stop: stop + }; + + var methods = Object.keys(Event.Methods).inject({ }, function(m, name) { + m[name] = Event.Methods[name].methodize(); + return m; + }); + + if (window.attachEvent) { + function _relatedTarget(event) { + var element; + switch (event.type) { + case 'mouseover': + case 'mouseenter': + element = event.fromElement; + break; + case 'mouseout': + case 'mouseleave': + element = event.toElement; + break; + default: + return null; + } + return Element.extend(element); + } + + var additionalMethods = { + stopPropagation: function() { this.cancelBubble = true }, + preventDefault: function() { this.returnValue = false }, + inspect: function() { return '[object Event]' } + }; + + Event.extend = function(event, element) { + if (!event) return false; + + if (!isIELegacyEvent(event)) return event; + + if (event._extendedByPrototype) return event; + event._extendedByPrototype = Prototype.emptyFunction; + + var pointer = Event.pointer(event); + + Object.extend(event, { + target: event.srcElement || element, + relatedTarget: _relatedTarget(event), + pageX: pointer.x, + pageY: pointer.y + }); + + Object.extend(event, methods); + Object.extend(event, additionalMethods); + + return event; + }; + } else { + Event.extend = Prototype.K; + } + + if (window.addEventListener) { + Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__; + Object.extend(Event.prototype, methods); + } + + var EVENT_TRANSLATIONS = { + mouseenter: 'mouseover', + mouseleave: 'mouseout' + }; + + function getDOMEventName(eventName) { + return EVENT_TRANSLATIONS[eventName] || eventName; + } + + if (MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) + getDOMEventName = Prototype.K; + + function getUniqueElementID(element) { + if (element === window) return 0; + + if (typeof element._prototypeUID === 'undefined') + element._prototypeUID = Element.Storage.UID++; + return element._prototypeUID; + } + + function getUniqueElementID_IE(element) { + if (element === window) return 0; + if (element == document) return 1; + return element.uniqueID; + } + + if ('uniqueID' in DIV) + getUniqueElementID = getUniqueElementID_IE; + + function isCustomEvent(eventName) { + return eventName.include(':'); + } + + Event._isCustomEvent = isCustomEvent; + + function getOrCreateRegistryFor(element, uid) { + var CACHE = GLOBAL.Event.cache; + if (Object.isUndefined(uid)) + uid = getUniqueElementID(element); + if (!CACHE[uid]) CACHE[uid] = { element: element }; + return CACHE[uid]; + } + + function destroyRegistryForElement(element, uid) { + if (Object.isUndefined(uid)) + uid = getUniqueElementID(element); + delete GLOBAL.Event.cache[uid]; + } + + + function register(element, eventName, handler) { + var registry = getOrCreateRegistryFor(element); + if (!registry[eventName]) registry[eventName] = []; + var entries = registry[eventName]; + + var i = entries.length; + while (i--) + if (entries[i].handler === handler) return null; + + var uid = getUniqueElementID(element); + var responder = GLOBAL.Event._createResponder(uid, eventName, handler); + var entry = { + responder: responder, + handler: handler + }; + + entries.push(entry); + return entry; + } + + function unregister(element, eventName, handler) { + var registry = getOrCreateRegistryFor(element); + var entries = registry[eventName] || []; + + var i = entries.length, entry; + while (i--) { + if (entries[i].handler === handler) { + entry = entries[i]; + break; + } + } + + if (entry) { + var index = entries.indexOf(entry); + entries.splice(index, 1); + } + + if (entries.length === 0) { + delete registry[eventName]; + if (Object.keys(registry).length === 1 && ('element' in registry)) + destroyRegistryForElement(element); + } + + return entry; + } + + + function observe(element, eventName, handler) { + element = $(element); + var entry = register(element, eventName, handler); + + if (entry === null) return element; + + var responder = entry.responder; + if (isCustomEvent(eventName)) + observeCustomEvent(element, eventName, responder); + else + observeStandardEvent(element, eventName, responder); + + return element; + } + + function observeStandardEvent(element, eventName, responder) { + var actualEventName = getDOMEventName(eventName); + if (element.addEventListener) { + element.addEventListener(actualEventName, responder, false); + } else { + element.attachEvent('on' + actualEventName, responder); + } + } + + function observeCustomEvent(element, eventName, responder) { + if (element.addEventListener) { + element.addEventListener('dataavailable', responder, false); + } else { + element.attachEvent('ondataavailable', responder); + element.attachEvent('onlosecapture', responder); + } + } + + function stopObserving(element, eventName, handler) { + element = $(element); + var handlerGiven = !Object.isUndefined(handler), + eventNameGiven = !Object.isUndefined(eventName); + + if (!eventNameGiven && !handlerGiven) { + stopObservingElement(element); + return element; + } + + if (!handlerGiven) { + stopObservingEventName(element, eventName); + return element; + } + + var entry = unregister(element, eventName, handler); + + if (!entry) return element; + removeEvent(element, eventName, entry.responder); + return element; + } + + function stopObservingStandardEvent(element, eventName, responder) { + var actualEventName = getDOMEventName(eventName); + if (element.removeEventListener) { + element.removeEventListener(actualEventName, responder, false); + } else { + element.detachEvent('on' + actualEventName, responder); + } + } + + function stopObservingCustomEvent(element, eventName, responder) { + if (element.removeEventListener) { + element.removeEventListener('dataavailable', responder, false); + } else { + element.detachEvent('ondataavailable', responder); + element.detachEvent('onlosecapture', responder); + } + } + + + + function stopObservingElement(element) { + var uid = getUniqueElementID(element), registry = GLOBAL.Event.cache[uid]; + if (!registry) return; + + destroyRegistryForElement(element, uid); + + var entries, i; + for (var eventName in registry) { + if (eventName === 'element') continue; + + entries = registry[eventName]; + i = entries.length; + while (i--) + removeEvent(element, eventName, entries[i].responder); + } + } + + function stopObservingEventName(element, eventName) { + var registry = getOrCreateRegistryFor(element); + var entries = registry[eventName]; + if (entries) { + delete registry[eventName]; + } + + entries = entries || []; + + var i = entries.length; + while (i--) + removeEvent(element, eventName, entries[i].responder); + + for (var name in registry) { + if (name === 'element') continue; + return; // There is another registered event + } + + destroyRegistryForElement(element); + } + + + function removeEvent(element, eventName, handler) { + if (isCustomEvent(eventName)) + stopObservingCustomEvent(element, eventName, handler); + else + stopObservingStandardEvent(element, eventName, handler); + } + + + + function getFireTarget(element) { + if (element !== document) return element; + if (document.createEvent && !element.dispatchEvent) + return document.documentElement; + return element; + } + + function fire(element, eventName, memo, bubble) { + element = getFireTarget($(element)); + if (Object.isUndefined(bubble)) bubble = true; + memo = memo || {}; + + var event = fireEvent(element, eventName, memo, bubble); + return Event.extend(event); + } + + function fireEvent_DOM(element, eventName, memo, bubble) { + var event = document.createEvent('HTMLEvents'); + event.initEvent('dataavailable', bubble, true); + + event.eventName = eventName; + event.memo = memo; + + element.dispatchEvent(event); + return event; + } + + function fireEvent_IE(element, eventName, memo, bubble) { + var event = document.createEventObject(); + event.eventType = bubble ? 'ondataavailable' : 'onlosecapture'; + + event.eventName = eventName; + event.memo = memo; + + element.fireEvent(event.eventType, event); + return event; + } + + var fireEvent = document.createEvent ? fireEvent_DOM : fireEvent_IE; + + + + Event.Handler = Class.create({ + initialize: function(element, eventName, selector, callback) { + this.element = $(element); + this.eventName = eventName; + this.selector = selector; + this.callback = callback; + this.handler = this.handleEvent.bind(this); + }, + + + start: function() { + Event.observe(this.element, this.eventName, this.handler); + return this; + }, + + stop: function() { + Event.stopObserving(this.element, this.eventName, this.handler); + return this; + }, + + handleEvent: function(event) { + var element = Event.findElement(event, this.selector); + if (element) this.callback.call(this.element, event, element); + } + }); + + function on(element, eventName, selector, callback) { + element = $(element); + if (Object.isFunction(selector) && Object.isUndefined(callback)) { + callback = selector, selector = null; + } + + return new Event.Handler(element, eventName, selector, callback).start(); + } + + Object.extend(Event, Event.Methods); + + Object.extend(Event, { + fire: fire, + observe: observe, + stopObserving: stopObserving, + on: on + }); + + Element.addMethods({ + fire: fire, + + observe: observe, + + stopObserving: stopObserving, + + on: on + }); + + Object.extend(document, { + fire: fire.methodize(), + + observe: observe.methodize(), + + stopObserving: stopObserving.methodize(), + + on: on.methodize(), + + loaded: false + }); + + if (GLOBAL.Event) Object.extend(window.Event, Event); + else GLOBAL.Event = Event; + + GLOBAL.Event.cache = {}; + + function destroyCache_IE() { + GLOBAL.Event.cache = null; + } + + if (window.attachEvent) + window.attachEvent('onunload', destroyCache_IE); + + DIV = null; + docEl = null; +})(this); + +(function(GLOBAL) { + /* Code for creating leak-free event responders is based on work by + John-David Dalton. */ + + var docEl = document.documentElement; + var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl + && 'onmouseleave' in docEl; + + function isSimulatedMouseEnterLeaveEvent(eventName) { + return !MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED && + (eventName === 'mouseenter' || eventName === 'mouseleave'); + } + + function createResponder(uid, eventName, handler) { + if (Event._isCustomEvent(eventName)) + return createResponderForCustomEvent(uid, eventName, handler); + if (isSimulatedMouseEnterLeaveEvent(eventName)) + return createMouseEnterLeaveResponder(uid, eventName, handler); + + return function(event) { + if (!Event.cache) return; + + var element = Event.cache[uid].element; + Event.extend(event, element); + handler.call(element, event); + }; + } + + function createResponderForCustomEvent(uid, eventName, handler) { + return function(event) { + var cache = Event.cache[uid]; + var element = cache && cache.element; + + if (Object.isUndefined(event.eventName)) + return false; + + if (event.eventName !== eventName) + return false; + + Event.extend(event, element); + handler.call(element, event); + }; + } + + function createMouseEnterLeaveResponder(uid, eventName, handler) { + return function(event) { + var element = Event.cache[uid].element; + + Event.extend(event, element); + var parent = event.relatedTarget; + + while (parent && parent !== element) { + try { parent = parent.parentNode; } + catch(e) { parent = element; } + } + + if (parent === element) return; + handler.call(element, event); + } + } + + GLOBAL.Event._createResponder = createResponder; + docEl = null; +})(this); + +(function(GLOBAL) { + /* Support for the DOMContentLoaded event is based on work by Dan Webb, + Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */ + + var TIMER; + + function fireContentLoadedEvent() { + if (document.loaded) return; + if (TIMER) window.clearTimeout(TIMER); + document.loaded = true; + document.fire('dom:loaded'); + } + + function checkReadyState() { + if (document.readyState === 'complete') { + document.detachEvent('onreadystatechange', checkReadyState); + fireContentLoadedEvent(); + } + } + + function pollDoScroll() { + try { + document.documentElement.doScroll('left'); + } catch (e) { + TIMER = pollDoScroll.defer(); + return; + } + + fireContentLoadedEvent(); + } + + + if (document.readyState === 'complete') { + fireContentLoadedEvent(); + return; + } + + if (document.addEventListener) { + document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false); + } else { + document.attachEvent('onreadystatechange', checkReadyState); + if (window == top) TIMER = pollDoScroll.defer(); + } + + Event.observe(window, 'load', fireContentLoadedEvent); +})(this); + + +Element.addMethods(); +/*------------------------------- DEPRECATED -------------------------------*/ + +Hash.toQueryString = Object.toQueryString; + +var Toggle = { display: Element.toggle }; + +Element.addMethods({ + childOf: Element.Methods.descendantOf +}); + +var Insertion = { + Before: function(element, content) { + return Element.insert(element, {before:content}); + }, + + Top: function(element, content) { + return Element.insert(element, {top:content}); + }, + + Bottom: function(element, content) { + return Element.insert(element, {bottom:content}); + }, + + After: function(element, content) { + return Element.insert(element, {after:content}); + } +}; + +var $continue = new Error('"throw $continue" is deprecated, use "return" instead'); + +var Position = { + includeScrollOffsets: false, + + prepare: function() { + this.deltaX = window.pageXOffset + || document.documentElement.scrollLeft + || document.body.scrollLeft + || 0; + this.deltaY = window.pageYOffset + || document.documentElement.scrollTop + || document.body.scrollTop + || 0; + }, + + within: function(element, x, y) { + if (this.includeScrollOffsets) + return this.withinIncludingScrolloffsets(element, x, y); + this.xcomp = x; + this.ycomp = y; + this.offset = Element.cumulativeOffset(element); + + return (y >= this.offset[1] && + y < this.offset[1] + element.offsetHeight && + x >= this.offset[0] && + x < this.offset[0] + element.offsetWidth); + }, + + withinIncludingScrolloffsets: function(element, x, y) { + var offsetcache = Element.cumulativeScrollOffset(element); + + this.xcomp = x + offsetcache[0] - this.deltaX; + this.ycomp = y + offsetcache[1] - this.deltaY; + this.offset = Element.cumulativeOffset(element); + + return (this.ycomp >= this.offset[1] && + this.ycomp < this.offset[1] + element.offsetHeight && + this.xcomp >= this.offset[0] && + this.xcomp < this.offset[0] + element.offsetWidth); + }, + + overlap: function(mode, element) { + if (!mode) return 0; + if (mode == 'vertical') + return ((this.offset[1] + element.offsetHeight) - this.ycomp) / + element.offsetHeight; + if (mode == 'horizontal') + return ((this.offset[0] + element.offsetWidth) - this.xcomp) / + element.offsetWidth; + }, + + + cumulativeOffset: Element.Methods.cumulativeOffset, + + positionedOffset: Element.Methods.positionedOffset, + + absolutize: function(element) { + Position.prepare(); + return Element.absolutize(element); + }, + + relativize: function(element) { + Position.prepare(); + return Element.relativize(element); + }, + + realOffset: Element.Methods.cumulativeScrollOffset, + + offsetParent: Element.Methods.getOffsetParent, + + page: Element.Methods.viewportOffset, + + clone: function(source, target, options) { + options = options || { }; + return Element.clonePosition(target, source, options); + } +}; + +/*--------------------------------------------------------------------------*/ + +if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){ + function iter(name) { + return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]"; + } + + instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ? + function(element, className) { + className = className.toString().strip(); + var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className); + return cond ? document._getElementsByXPath('.//*' + cond, element) : []; + } : function(element, className) { + className = className.toString().strip(); + var elements = [], classNames = (/\s/.test(className) ? $w(className) : null); + if (!classNames && !className) return elements; + + var nodes = $(element).getElementsByTagName('*'); + className = ' ' + className + ' '; + + for (var i = 0, child, cn; child = nodes[i]; i++) { + if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) || + (classNames && classNames.all(function(name) { + return !name.toString().blank() && cn.include(' ' + name + ' '); + })))) + elements.push(Element.extend(child)); + } + return elements; + }; + + return function(className, parentElement) { + return $(parentElement || document.body).getElementsByClassName(className); + }; +}(Element.Methods); + +/*--------------------------------------------------------------------------*/ + +Element.ClassNames = Class.create(); +Element.ClassNames.prototype = { + initialize: function(element) { + this.element = $(element); + }, + + _each: function(iterator, context) { + this.element.className.split(/\s+/).select(function(name) { + return name.length > 0; + })._each(iterator, context); + }, + + set: function(className) { + this.element.className = className; + }, + + add: function(classNameToAdd) { + if (this.include(classNameToAdd)) return; + this.set($A(this).concat(classNameToAdd).join(' ')); + }, + + remove: function(classNameToRemove) { + if (!this.include(classNameToRemove)) return; + this.set($A(this).without(classNameToRemove).join(' ')); + }, + + toString: function() { + return $A(this).join(' '); + } +}; + +Object.extend(Element.ClassNames.prototype, Enumerable); + +/*--------------------------------------------------------------------------*/ + +(function() { + window.Selector = Class.create({ + initialize: function(expression) { + this.expression = expression.strip(); + }, + + findElements: function(rootElement) { + return Prototype.Selector.select(this.expression, rootElement); + }, + + match: function(element) { + return Prototype.Selector.match(element, this.expression); + }, + + toString: function() { + return this.expression; + }, + + inspect: function() { + return "#"; + } + }); + + Object.extend(Selector, { + matchElements: function(elements, expression) { + var match = Prototype.Selector.match, + results = []; + + for (var i = 0, length = elements.length; i < length; i++) { + var element = elements[i]; + if (match(element, expression)) { + results.push(Element.extend(element)); + } + } + return results; + }, + + findElement: function(elements, expression, index) { + index = index || 0; + var matchIndex = 0, element; + for (var i = 0, length = elements.length; i < length; i++) { + element = elements[i]; + if (Prototype.Selector.match(element, expression) && index === matchIndex++) { + return Element.extend(element); + } + } + }, + + findChildElements: function(element, expressions) { + var selector = expressions.toArray().join(', '); + return Prototype.Selector.select(selector, element || document); + } + }); +})(); diff --git a/static/js/youp0m-admin.js b/static/js/youp0m-admin.js index c4a504c..43f3341 100644 --- a/static/js/youp0m-admin.js +++ b/static/js/youp0m-admin.js @@ -1,47 +1,11 @@ api_url = "/api/next/"; img_url = "/images/next/"; -function publish_pict(pict) { - fetch(api_url + "/" + pict.name + "/publish").then(response => { - picts = null; - sync() - }); -} - -function delete_pict(pict) { - fetch(api_url + "/" + pict.name, { method: "DELETE" }).then(response => { - picts = null; - sync() - }); -} - -function admin_ctrl(pict) { - var figure = document.createElement("figure"); - figure.className = "moz"; - var img = document.createElement("img"); - img.src = img_url + pict.name; - img.alt = pict.name; - var div = document.createElement("div"); - div.className = "menu" - var linkPub = document.createElement("a"); - linkPub.onclick = function(e) { - publish_pict(pict); - return false; - }; - linkPub.href = "#"; - linkPub.innerHTML = "Publier"; - var linkDel = document.createElement("a"); - linkDel.onclick = function(e) { - delete_pict(pict); - return false; - }; - linkDel.href = "#"; - linkDel.innerHTML = "Supprimer"; - div.appendChild(linkPub); - div.appendChild(linkDel); - figure.appendChild(div); - figure.appendChild(img); - document.body.appendChild(figure); +function admin_ctrl(figure) { + var menu = document.createElement("ul"); + var item = document.createElement("li", "test"); + menu.appendChild(item); + figure.appendChild(menu) } function sync() { diff --git a/static/js/youp0m.js b/static/js/youp0m.js index 00fe883..4b7c49d 100644 --- a/static/js/youp0m.js +++ b/static/js/youp0m.js @@ -3,54 +3,41 @@ var api_url = "/api/images"; var img_url = "/images/"; function get_picts(then, then_value) { - fetch(api_url) - .then(function(response) { - return response.json(); - }) - .then(function(my_picts) { - picts = my_picts; - if (then) then(then_value); - }) - .catch(function(error) { - display_error(error); + new Ajax.Request(api_url, { + method: 'get', + onSuccess: function(transport) { + picts = transport.responseText.evalJSON(); + if (then) then(then_value); + }, }); } -function show_mozaic(callpict) { +function show_mozaic() { if (!picts) { - get_picts(show_mozaic, callpict); + get_picts(show_mozaic); return; } - if (!picts.length) { - document.body.innerHTML = '

Welcome on YouP0m!

There is no image currently, come back soon!

'; - return; - } - - if (!callpict) { - callpict = function (pict) { - var figure = document.createElement("figure"); - figure.className = "moz"; - var img = document.createElement("img"); - img.src = img_url + pict.name; - img.alt = pict.name; - var link = document.createElement("a"); - link.onclick = function(e) { - window.history.pushState(null, "YouP0m", link.href); - sync(); - return false; - }; - link.href = "/" + pict.name; - link.appendChild(img); - figure.appendChild(link); - document.body.appendChild(figure); - } - } - while (document.body.hasChildNodes()) document.body.removeChild(document.body.lastChild); - picts.forEach(callpict); + picts.forEach(function (pict) { + var figure = document.createElement("figure"); + figure.className = "moz"; + var img = document.createElement("img"); + img.src = img_url + pict.name; + img.alt = pict.name; + var link = document.createElement("a"); + link.onclick = function(e) { + window.history.pushState(null, "YouP0m", link.href); + sync(); + return false; + }; + link.href = "/" + pict.name; + link.appendChild(img); + figure.appendChild(link); + document.body.appendChild(figure); + }); } function show_picture(id) { @@ -59,11 +46,6 @@ function show_picture(id) { return; } - if (picts.length == 0) { - document.body.innerHTML = '

Welcome on YouP0m!

There is no image currently, come back soon!

'; - return - } - if (id == null || id == "") id = picts[Math.floor(Math.random() * picts.length)].name; @@ -87,16 +69,16 @@ function show_picture(id) { function get_picture(id) { if (id == null) id = "last"; - - fetch(api_url + "/" + id) - .then(function(response) { - return response.json(); - }) - .then(function(my_pict) { - display_picture(my_pict); - }) - .catch(function(error) { - display_error(error); + new Ajax.Request(api_url + "/" + id, { + method: 'get', + onSuccess: function(transport) { + var response = transport.responseText.evalJSON(); + display_picture(response); + }, + onFailure: function(transport) { + var response = transport.responseText.evalJSON(); + display_error(response["errmsg"]); + } }); } @@ -126,7 +108,7 @@ function display_picture(pict, next) { } function display_error(msg) { - document.body.innerHTML = '

An error occurs

' + msg + '

'; + $$("body")[0].innerHTML = '

An error occurs

' + msg + '

'; } function sync() { diff --git a/vendor/github.com/nfnt/resize/.travis.yml b/vendor/github.com/nfnt/resize/.travis.yml new file mode 100644 index 0000000..57bd4a7 --- /dev/null +++ b/vendor/github.com/nfnt/resize/.travis.yml @@ -0,0 +1,7 @@ +language: go + +go: + - 1.1 + - 1.2 + - 1.3 + - tip diff --git a/vendor/github.com/nfnt/resize/LICENSE b/vendor/github.com/nfnt/resize/LICENSE new file mode 100644 index 0000000..7836cad --- /dev/null +++ b/vendor/github.com/nfnt/resize/LICENSE @@ -0,0 +1,13 @@ +Copyright (c) 2012, Jan Schlicht + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. diff --git a/vendor/github.com/nfnt/resize/README.md b/vendor/github.com/nfnt/resize/README.md new file mode 100644 index 0000000..2aefa75 --- /dev/null +++ b/vendor/github.com/nfnt/resize/README.md @@ -0,0 +1,149 @@ +Resize +====== + +Image resizing for the [Go programming language](http://golang.org) with common interpolation methods. + +[![Build Status](https://travis-ci.org/nfnt/resize.svg)](https://travis-ci.org/nfnt/resize) + +Installation +------------ + +```bash +$ go get github.com/nfnt/resize +``` + +It's that easy! + +Usage +----- + +This package needs at least Go 1.1. Import package with + +```go +import "github.com/nfnt/resize" +``` + +The resize package provides 2 functions: + +* `resize.Resize` creates a scaled image with new dimensions (`width`, `height`) using the interpolation function `interp`. + If either `width` or `height` is set to 0, it will be set to an aspect ratio preserving value. +* `resize.Thumbnail` downscales an image preserving its aspect ratio to the maximum dimensions (`maxWidth`, `maxHeight`). + It will return the original image if original sizes are smaller than the provided dimensions. + +```go +resize.Resize(width, height uint, img image.Image, interp resize.InterpolationFunction) image.Image +resize.Thumbnail(maxWidth, maxHeight uint, img image.Image, interp resize.InterpolationFunction) image.Image +``` + +The provided interpolation functions are (from fast to slow execution time) + +- `NearestNeighbor`: [Nearest-neighbor interpolation](http://en.wikipedia.org/wiki/Nearest-neighbor_interpolation) +- `Bilinear`: [Bilinear interpolation](http://en.wikipedia.org/wiki/Bilinear_interpolation) +- `Bicubic`: [Bicubic interpolation](http://en.wikipedia.org/wiki/Bicubic_interpolation) +- `MitchellNetravali`: [Mitchell-Netravali interpolation](http://dl.acm.org/citation.cfm?id=378514) +- `Lanczos2`: [Lanczos resampling](http://en.wikipedia.org/wiki/Lanczos_resampling) with a=2 +- `Lanczos3`: [Lanczos resampling](http://en.wikipedia.org/wiki/Lanczos_resampling) with a=3 + +Which of these methods gives the best results depends on your use case. + +Sample usage: + +```go +package main + +import ( + "github.com/nfnt/resize" + "image/jpeg" + "log" + "os" +) + +func main() { + // open "test.jpg" + file, err := os.Open("test.jpg") + if err != nil { + log.Fatal(err) + } + + // decode jpeg into image.Image + img, err := jpeg.Decode(file) + if err != nil { + log.Fatal(err) + } + file.Close() + + // resize to width 1000 using Lanczos resampling + // and preserve aspect ratio + m := resize.Resize(1000, 0, img, resize.Lanczos3) + + out, err := os.Create("test_resized.jpg") + if err != nil { + log.Fatal(err) + } + defer out.Close() + + // write new image to file + jpeg.Encode(out, m, nil) +} +``` + +Caveats +------- + +* Optimized access routines are used for `image.RGBA`, `image.NRGBA`, `image.RGBA64`, `image.NRGBA64`, `image.YCbCr`, `image.Gray`, and `image.Gray16` types. All other image types are accessed in a generic way that will result in slow processing speed. +* JPEG images are stored in `image.YCbCr`. This image format stores data in a way that will decrease processing speed. A resize may be up to 2 times slower than with `image.RGBA`. + + +Downsizing Samples +------- + +Downsizing is not as simple as it might look like. Images have to be filtered before they are scaled down, otherwise aliasing might occur. +Filtering is highly subjective: Applying too much will blur the whole image, too little will make aliasing become apparent. +Resize tries to provide sane defaults that should suffice in most cases. + +### Artificial sample + +Original image +![Rings](http://nfnt.github.com/img/rings_lg_orig.png) + + + + + + + + + + + + + + +

Nearest-Neighbor
Bilinear

Bicubic
Mitchell-Netravali

Lanczos2
Lanczos3
+ +### Real-Life sample + +Original image +![Original](http://nfnt.github.com/img/IMG_3694_720.jpg) + + + + + + + + + + + + + + +

Nearest-Neighbor
Bilinear

Bicubic
Mitchell-Netravali

Lanczos2
Lanczos3
+ + +License +------- + +Copyright (c) 2012 Jan Schlicht +Resize is released under a MIT style license. diff --git a/vendor/github.com/nfnt/resize/converter.go b/vendor/github.com/nfnt/resize/converter.go new file mode 100644 index 0000000..20ac593 --- /dev/null +++ b/vendor/github.com/nfnt/resize/converter.go @@ -0,0 +1,438 @@ +/* +Copyright (c) 2012, Jan Schlicht + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import "image" + +// Keep value in [0,255] range. +func clampUint8(in int32) uint8 { + // casting a negative int to an uint will result in an overflown + // large uint. this behavior will be exploited here and in other functions + // to achieve a higher performance. + if uint32(in) < 256 { + return uint8(in) + } + if in > 255 { + return 255 + } + return 0 +} + +// Keep value in [0,65535] range. +func clampUint16(in int64) uint16 { + if uint64(in) < 65536 { + return uint16(in) + } + if in > 65535 { + return 65535 + } + return 0 +} + +func resizeGeneric(in image.Image, out *image.RGBA64, scale float64, coeffs []int32, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]int64 + var sum int64 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case xi < 0: + xi = 0 + case xi >= maxX: + xi = maxX + } + + r, g, b, a := in.At(xi+in.Bounds().Min.X, x+in.Bounds().Min.Y).RGBA() + + rgba[0] += int64(coeff) * int64(r) + rgba[1] += int64(coeff) * int64(g) + rgba[2] += int64(coeff) * int64(b) + rgba[3] += int64(coeff) * int64(a) + sum += int64(coeff) + } + } + + offset := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*8 + + value := clampUint16(rgba[0] / sum) + out.Pix[offset+0] = uint8(value >> 8) + out.Pix[offset+1] = uint8(value) + value = clampUint16(rgba[1] / sum) + out.Pix[offset+2] = uint8(value >> 8) + out.Pix[offset+3] = uint8(value) + value = clampUint16(rgba[2] / sum) + out.Pix[offset+4] = uint8(value >> 8) + out.Pix[offset+5] = uint8(value) + value = clampUint16(rgba[3] / sum) + out.Pix[offset+6] = uint8(value >> 8) + out.Pix[offset+7] = uint8(value) + } + } +} + +func resizeRGBA(in *image.RGBA, out *image.RGBA, scale float64, coeffs []int16, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]int32 + var sum int32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 4 + case xi >= maxX: + xi = 4 * maxX + default: + xi = 0 + } + + rgba[0] += int32(coeff) * int32(row[xi+0]) + rgba[1] += int32(coeff) * int32(row[xi+1]) + rgba[2] += int32(coeff) * int32(row[xi+2]) + rgba[3] += int32(coeff) * int32(row[xi+3]) + sum += int32(coeff) + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*4 + + out.Pix[xo+0] = clampUint8(rgba[0] / sum) + out.Pix[xo+1] = clampUint8(rgba[1] / sum) + out.Pix[xo+2] = clampUint8(rgba[2] / sum) + out.Pix[xo+3] = clampUint8(rgba[3] / sum) + } + } +} + +func resizeNRGBA(in *image.NRGBA, out *image.RGBA, scale float64, coeffs []int16, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]int32 + var sum int32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 4 + case xi >= maxX: + xi = 4 * maxX + default: + xi = 0 + } + + rgba[0] += int32(coeff) * int32(row[xi+0]) + rgba[1] += int32(coeff) * int32(row[xi+1]) + rgba[2] += int32(coeff) * int32(row[xi+2]) + rgba[3] += int32(coeff) * int32(row[xi+3]) + sum += int32(coeff) + + // Forward alpha-premultiplication + a := int32(row[xi+3]) + rgba[0] *= a + rgba[0] /= 0xff + rgba[1] *= a + rgba[1] /= 0xff + rgba[2] *= a + rgba[2] /= 0xff + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*4 + + out.Pix[xo+0] = clampUint8(rgba[0] / sum) + out.Pix[xo+1] = clampUint8(rgba[1] / sum) + out.Pix[xo+2] = clampUint8(rgba[2] / sum) + out.Pix[xo+3] = clampUint8(rgba[3] / sum) + } + } +} + +func resizeRGBA64(in *image.RGBA64, out *image.RGBA64, scale float64, coeffs []int32, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]int64 + var sum int64 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 8 + case xi >= maxX: + xi = 8 * maxX + default: + xi = 0 + } + + rgba[0] += int64(coeff) * (int64(row[xi+0])<<8 | int64(row[xi+1])) + rgba[1] += int64(coeff) * (int64(row[xi+2])<<8 | int64(row[xi+3])) + rgba[2] += int64(coeff) * (int64(row[xi+4])<<8 | int64(row[xi+5])) + rgba[3] += int64(coeff) * (int64(row[xi+6])<<8 | int64(row[xi+7])) + sum += int64(coeff) + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*8 + + value := clampUint16(rgba[0] / sum) + out.Pix[xo+0] = uint8(value >> 8) + out.Pix[xo+1] = uint8(value) + value = clampUint16(rgba[1] / sum) + out.Pix[xo+2] = uint8(value >> 8) + out.Pix[xo+3] = uint8(value) + value = clampUint16(rgba[2] / sum) + out.Pix[xo+4] = uint8(value >> 8) + out.Pix[xo+5] = uint8(value) + value = clampUint16(rgba[3] / sum) + out.Pix[xo+6] = uint8(value >> 8) + out.Pix[xo+7] = uint8(value) + } + } +} + +func resizeNRGBA64(in *image.NRGBA64, out *image.RGBA64, scale float64, coeffs []int32, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]int64 + var sum int64 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 8 + case xi >= maxX: + xi = 8 * maxX + default: + xi = 0 + } + + rgba[0] += int64(coeff) * int64(uint16(row[xi+0])<<8|uint16(row[xi+1])) + rgba[1] += int64(coeff) * int64(uint16(row[xi+2])<<8|uint16(row[xi+3])) + rgba[2] += int64(coeff) * int64(uint16(row[xi+4])<<8|uint16(row[xi+5])) + rgba[3] += int64(coeff) * int64(uint16(row[xi+6])<<8|uint16(row[xi+7])) + sum += int64(coeff) + + // Forward alpha-premultiplication + a := int64(uint16(row[xi+6])<<8 | uint16(row[xi+7])) + rgba[0] *= a + rgba[0] /= 0xffff + rgba[1] *= a + rgba[1] /= 0xffff + rgba[2] *= a + rgba[2] /= 0xffff + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*8 + + value := clampUint16(rgba[0] / sum) + out.Pix[xo+0] = uint8(value >> 8) + out.Pix[xo+1] = uint8(value) + value = clampUint16(rgba[1] / sum) + out.Pix[xo+2] = uint8(value >> 8) + out.Pix[xo+3] = uint8(value) + value = clampUint16(rgba[2] / sum) + out.Pix[xo+4] = uint8(value >> 8) + out.Pix[xo+5] = uint8(value) + value = clampUint16(rgba[3] / sum) + out.Pix[xo+6] = uint8(value >> 8) + out.Pix[xo+7] = uint8(value) + } + } +} + +func resizeGray(in *image.Gray, out *image.Gray, scale float64, coeffs []int16, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[(x-newBounds.Min.X)*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var gray int32 + var sum int32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case xi < 0: + xi = 0 + case xi >= maxX: + xi = maxX + } + gray += int32(coeff) * int32(row[xi]) + sum += int32(coeff) + } + } + + offset := (y-newBounds.Min.Y)*out.Stride + (x - newBounds.Min.X) + out.Pix[offset] = clampUint8(gray / sum) + } + } +} + +func resizeGray16(in *image.Gray16, out *image.Gray16, scale float64, coeffs []int32, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var gray int64 + var sum int64 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 2 + case xi >= maxX: + xi = 2 * maxX + default: + xi = 0 + } + gray += int64(coeff) * int64(uint16(row[xi+0])<<8|uint16(row[xi+1])) + sum += int64(coeff) + } + } + + offset := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*2 + value := clampUint16(gray / sum) + out.Pix[offset+0] = uint8(value >> 8) + out.Pix[offset+1] = uint8(value) + } + } +} + +func resizeYCbCr(in *ycc, out *ycc, scale float64, coeffs []int16, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var p [3]int32 + var sum int32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + coeff := coeffs[ci+i] + if coeff != 0 { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 3 + case xi >= maxX: + xi = 3 * maxX + default: + xi = 0 + } + p[0] += int32(coeff) * int32(row[xi+0]) + p[1] += int32(coeff) * int32(row[xi+1]) + p[2] += int32(coeff) * int32(row[xi+2]) + sum += int32(coeff) + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*3 + out.Pix[xo+0] = clampUint8(p[0] / sum) + out.Pix[xo+1] = clampUint8(p[1] / sum) + out.Pix[xo+2] = clampUint8(p[2] / sum) + } + } +} + +func nearestYCbCr(in *ycc, out *ycc, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var p [3]float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 3 + case xi >= maxX: + xi = 3 * maxX + default: + xi = 0 + } + p[0] += float32(row[xi+0]) + p[1] += float32(row[xi+1]) + p[2] += float32(row[xi+2]) + sum++ + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*3 + out.Pix[xo+0] = floatToUint8(p[0] / sum) + out.Pix[xo+1] = floatToUint8(p[1] / sum) + out.Pix[xo+2] = floatToUint8(p[2] / sum) + } + } +} diff --git a/vendor/github.com/nfnt/resize/converter_test.go b/vendor/github.com/nfnt/resize/converter_test.go new file mode 100644 index 0000000..85639ef --- /dev/null +++ b/vendor/github.com/nfnt/resize/converter_test.go @@ -0,0 +1,43 @@ +package resize + +import ( + "testing" +) + +func Test_ClampUint8(t *testing.T) { + var testData = []struct { + in int32 + expected uint8 + }{ + {0, 0}, + {255, 255}, + {128, 128}, + {-2, 0}, + {256, 255}, + } + for _, test := range testData { + actual := clampUint8(test.in) + if actual != test.expected { + t.Fail() + } + } +} + +func Test_ClampUint16(t *testing.T) { + var testData = []struct { + in int64 + expected uint16 + }{ + {0, 0}, + {65535, 65535}, + {128, 128}, + {-2, 0}, + {65536, 65535}, + } + for _, test := range testData { + actual := clampUint16(test.in) + if actual != test.expected { + t.Fail() + } + } +} diff --git a/vendor/github.com/nfnt/resize/filters.go b/vendor/github.com/nfnt/resize/filters.go new file mode 100644 index 0000000..4ce04e3 --- /dev/null +++ b/vendor/github.com/nfnt/resize/filters.go @@ -0,0 +1,143 @@ +/* +Copyright (c) 2012, Jan Schlicht + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import ( + "math" +) + +func nearest(in float64) float64 { + if in >= -0.5 && in < 0.5 { + return 1 + } + return 0 +} + +func linear(in float64) float64 { + in = math.Abs(in) + if in <= 1 { + return 1 - in + } + return 0 +} + +func cubic(in float64) float64 { + in = math.Abs(in) + if in <= 1 { + return in*in*(1.5*in-2.5) + 1.0 + } + if in <= 2 { + return in*(in*(2.5-0.5*in)-4.0) + 2.0 + } + return 0 +} + +func mitchellnetravali(in float64) float64 { + in = math.Abs(in) + if in <= 1 { + return (7.0*in*in*in - 12.0*in*in + 5.33333333333) * 0.16666666666 + } + if in <= 2 { + return (-2.33333333333*in*in*in + 12.0*in*in - 20.0*in + 10.6666666667) * 0.16666666666 + } + return 0 +} + +func sinc(x float64) float64 { + x = math.Abs(x) * math.Pi + if x >= 1.220703e-4 { + return math.Sin(x) / x + } + return 1 +} + +func lanczos2(in float64) float64 { + if in > -2 && in < 2 { + return sinc(in) * sinc(in*0.5) + } + return 0 +} + +func lanczos3(in float64) float64 { + if in > -3 && in < 3 { + return sinc(in) * sinc(in*0.3333333333333333) + } + return 0 +} + +// range [-256,256] +func createWeights8(dy, filterLength int, blur, scale float64, kernel func(float64) float64) ([]int16, []int, int) { + filterLength = filterLength * int(math.Max(math.Ceil(blur*scale), 1)) + filterFactor := math.Min(1./(blur*scale), 1) + + coeffs := make([]int16, dy*filterLength) + start := make([]int, dy) + for y := 0; y < dy; y++ { + interpX := scale*(float64(y)+0.5) - 0.5 + start[y] = int(interpX) - filterLength/2 + 1 + interpX -= float64(start[y]) + for i := 0; i < filterLength; i++ { + in := (interpX - float64(i)) * filterFactor + coeffs[y*filterLength+i] = int16(kernel(in) * 256) + } + } + + return coeffs, start, filterLength +} + +// range [-65536,65536] +func createWeights16(dy, filterLength int, blur, scale float64, kernel func(float64) float64) ([]int32, []int, int) { + filterLength = filterLength * int(math.Max(math.Ceil(blur*scale), 1)) + filterFactor := math.Min(1./(blur*scale), 1) + + coeffs := make([]int32, dy*filterLength) + start := make([]int, dy) + for y := 0; y < dy; y++ { + interpX := scale*(float64(y)+0.5) - 0.5 + start[y] = int(interpX) - filterLength/2 + 1 + interpX -= float64(start[y]) + for i := 0; i < filterLength; i++ { + in := (interpX - float64(i)) * filterFactor + coeffs[y*filterLength+i] = int32(kernel(in) * 65536) + } + } + + return coeffs, start, filterLength +} + +func createWeightsNearest(dy, filterLength int, blur, scale float64) ([]bool, []int, int) { + filterLength = filterLength * int(math.Max(math.Ceil(blur*scale), 1)) + filterFactor := math.Min(1./(blur*scale), 1) + + coeffs := make([]bool, dy*filterLength) + start := make([]int, dy) + for y := 0; y < dy; y++ { + interpX := scale*(float64(y)+0.5) - 0.5 + start[y] = int(interpX) - filterLength/2 + 1 + interpX -= float64(start[y]) + for i := 0; i < filterLength; i++ { + in := (interpX - float64(i)) * filterFactor + if in >= -0.5 && in < 0.5 { + coeffs[y*filterLength+i] = true + } else { + coeffs[y*filterLength+i] = false + } + } + } + + return coeffs, start, filterLength +} diff --git a/vendor/github.com/nfnt/resize/nearest.go b/vendor/github.com/nfnt/resize/nearest.go new file mode 100644 index 0000000..888039d --- /dev/null +++ b/vendor/github.com/nfnt/resize/nearest.go @@ -0,0 +1,318 @@ +/* +Copyright (c) 2014, Charlie Vieth + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import "image" + +func floatToUint8(x float32) uint8 { + // Nearest-neighbor values are always + // positive no need to check lower-bound. + if x > 0xfe { + return 0xff + } + return uint8(x) +} + +func floatToUint16(x float32) uint16 { + if x > 0xfffe { + return 0xffff + } + return uint16(x) +} + +func nearestGeneric(in image.Image, out *image.RGBA64, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case xi < 0: + xi = 0 + case xi >= maxX: + xi = maxX + } + r, g, b, a := in.At(xi+in.Bounds().Min.X, x+in.Bounds().Min.Y).RGBA() + rgba[0] += float32(r) + rgba[1] += float32(g) + rgba[2] += float32(b) + rgba[3] += float32(a) + sum++ + } + } + + offset := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*8 + value := floatToUint16(rgba[0] / sum) + out.Pix[offset+0] = uint8(value >> 8) + out.Pix[offset+1] = uint8(value) + value = floatToUint16(rgba[1] / sum) + out.Pix[offset+2] = uint8(value >> 8) + out.Pix[offset+3] = uint8(value) + value = floatToUint16(rgba[2] / sum) + out.Pix[offset+4] = uint8(value >> 8) + out.Pix[offset+5] = uint8(value) + value = floatToUint16(rgba[3] / sum) + out.Pix[offset+6] = uint8(value >> 8) + out.Pix[offset+7] = uint8(value) + } + } +} + +func nearestRGBA(in *image.RGBA, out *image.RGBA, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 4 + case xi >= maxX: + xi = 4 * maxX + default: + xi = 0 + } + rgba[0] += float32(row[xi+0]) + rgba[1] += float32(row[xi+1]) + rgba[2] += float32(row[xi+2]) + rgba[3] += float32(row[xi+3]) + sum++ + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*4 + out.Pix[xo+0] = floatToUint8(rgba[0] / sum) + out.Pix[xo+1] = floatToUint8(rgba[1] / sum) + out.Pix[xo+2] = floatToUint8(rgba[2] / sum) + out.Pix[xo+3] = floatToUint8(rgba[3] / sum) + } + } +} + +func nearestNRGBA(in *image.NRGBA, out *image.NRGBA, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 4 + case xi >= maxX: + xi = 4 * maxX + default: + xi = 0 + } + rgba[0] += float32(row[xi+0]) + rgba[1] += float32(row[xi+1]) + rgba[2] += float32(row[xi+2]) + rgba[3] += float32(row[xi+3]) + sum++ + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*4 + out.Pix[xo+0] = floatToUint8(rgba[0] / sum) + out.Pix[xo+1] = floatToUint8(rgba[1] / sum) + out.Pix[xo+2] = floatToUint8(rgba[2] / sum) + out.Pix[xo+3] = floatToUint8(rgba[3] / sum) + } + } +} + +func nearestRGBA64(in *image.RGBA64, out *image.RGBA64, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 8 + case xi >= maxX: + xi = 8 * maxX + default: + xi = 0 + } + rgba[0] += float32(uint16(row[xi+0])<<8 | uint16(row[xi+1])) + rgba[1] += float32(uint16(row[xi+2])<<8 | uint16(row[xi+3])) + rgba[2] += float32(uint16(row[xi+4])<<8 | uint16(row[xi+5])) + rgba[3] += float32(uint16(row[xi+6])<<8 | uint16(row[xi+7])) + sum++ + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*8 + value := floatToUint16(rgba[0] / sum) + out.Pix[xo+0] = uint8(value >> 8) + out.Pix[xo+1] = uint8(value) + value = floatToUint16(rgba[1] / sum) + out.Pix[xo+2] = uint8(value >> 8) + out.Pix[xo+3] = uint8(value) + value = floatToUint16(rgba[2] / sum) + out.Pix[xo+4] = uint8(value >> 8) + out.Pix[xo+5] = uint8(value) + value = floatToUint16(rgba[3] / sum) + out.Pix[xo+6] = uint8(value >> 8) + out.Pix[xo+7] = uint8(value) + } + } +} + +func nearestNRGBA64(in *image.NRGBA64, out *image.NRGBA64, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var rgba [4]float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 8 + case xi >= maxX: + xi = 8 * maxX + default: + xi = 0 + } + rgba[0] += float32(uint16(row[xi+0])<<8 | uint16(row[xi+1])) + rgba[1] += float32(uint16(row[xi+2])<<8 | uint16(row[xi+3])) + rgba[2] += float32(uint16(row[xi+4])<<8 | uint16(row[xi+5])) + rgba[3] += float32(uint16(row[xi+6])<<8 | uint16(row[xi+7])) + sum++ + } + } + + xo := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*8 + value := floatToUint16(rgba[0] / sum) + out.Pix[xo+0] = uint8(value >> 8) + out.Pix[xo+1] = uint8(value) + value = floatToUint16(rgba[1] / sum) + out.Pix[xo+2] = uint8(value >> 8) + out.Pix[xo+3] = uint8(value) + value = floatToUint16(rgba[2] / sum) + out.Pix[xo+4] = uint8(value >> 8) + out.Pix[xo+5] = uint8(value) + value = floatToUint16(rgba[3] / sum) + out.Pix[xo+6] = uint8(value >> 8) + out.Pix[xo+7] = uint8(value) + } + } +} + +func nearestGray(in *image.Gray, out *image.Gray, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var gray float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case xi < 0: + xi = 0 + case xi >= maxX: + xi = maxX + } + gray += float32(row[xi]) + sum++ + } + } + + offset := (y-newBounds.Min.Y)*out.Stride + (x - newBounds.Min.X) + out.Pix[offset] = floatToUint8(gray / sum) + } + } +} + +func nearestGray16(in *image.Gray16, out *image.Gray16, scale float64, coeffs []bool, offset []int, filterLength int) { + newBounds := out.Bounds() + maxX := in.Bounds().Dx() - 1 + + for x := newBounds.Min.X; x < newBounds.Max.X; x++ { + row := in.Pix[x*in.Stride:] + for y := newBounds.Min.Y; y < newBounds.Max.Y; y++ { + var gray float32 + var sum float32 + start := offset[y] + ci := y * filterLength + for i := 0; i < filterLength; i++ { + if coeffs[ci+i] { + xi := start + i + switch { + case uint(xi) < uint(maxX): + xi *= 2 + case xi >= maxX: + xi = 2 * maxX + default: + xi = 0 + } + gray += float32(uint16(row[xi+0])<<8 | uint16(row[xi+1])) + sum++ + } + } + + offset := (y-newBounds.Min.Y)*out.Stride + (x-newBounds.Min.X)*2 + value := floatToUint16(gray / sum) + out.Pix[offset+0] = uint8(value >> 8) + out.Pix[offset+1] = uint8(value) + } + } +} diff --git a/vendor/github.com/nfnt/resize/nearest_test.go b/vendor/github.com/nfnt/resize/nearest_test.go new file mode 100644 index 0000000..d4a76dd --- /dev/null +++ b/vendor/github.com/nfnt/resize/nearest_test.go @@ -0,0 +1,57 @@ +/* +Copyright (c) 2014, Charlie Vieth + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import "testing" + +func Test_FloatToUint8(t *testing.T) { + var testData = []struct { + in float32 + expected uint8 + }{ + {0, 0}, + {255, 255}, + {128, 128}, + {1, 1}, + {256, 255}, + } + for _, test := range testData { + actual := floatToUint8(test.in) + if actual != test.expected { + t.Fail() + } + } +} + +func Test_FloatToUint16(t *testing.T) { + var testData = []struct { + in float32 + expected uint16 + }{ + {0, 0}, + {65535, 65535}, + {128, 128}, + {1, 1}, + {65536, 65535}, + } + for _, test := range testData { + actual := floatToUint16(test.in) + if actual != test.expected { + t.Fail() + } + } +} diff --git a/vendor/github.com/nfnt/resize/resize.go b/vendor/github.com/nfnt/resize/resize.go new file mode 100644 index 0000000..57bd1fc --- /dev/null +++ b/vendor/github.com/nfnt/resize/resize.go @@ -0,0 +1,614 @@ +/* +Copyright (c) 2012, Jan Schlicht + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +// Package resize implements various image resizing methods. +// +// The package works with the Image interface described in the image package. +// Various interpolation methods are provided and multiple processors may be +// utilized in the computations. +// +// Example: +// imgResized := resize.Resize(1000, 0, imgOld, resize.MitchellNetravali) +package resize + +import ( + "image" + "runtime" + "sync" +) + +// An InterpolationFunction provides the parameters that describe an +// interpolation kernel. It returns the number of samples to take +// and the kernel function to use for sampling. +type InterpolationFunction int + +// InterpolationFunction constants +const ( + // Nearest-neighbor interpolation + NearestNeighbor InterpolationFunction = iota + // Bilinear interpolation + Bilinear + // Bicubic interpolation (with cubic hermite spline) + Bicubic + // Mitchell-Netravali interpolation + MitchellNetravali + // Lanczos interpolation (a=2) + Lanczos2 + // Lanczos interpolation (a=3) + Lanczos3 +) + +// kernal, returns an InterpolationFunctions taps and kernel. +func (i InterpolationFunction) kernel() (int, func(float64) float64) { + switch i { + case Bilinear: + return 2, linear + case Bicubic: + return 4, cubic + case MitchellNetravali: + return 4, mitchellnetravali + case Lanczos2: + return 4, lanczos2 + case Lanczos3: + return 6, lanczos3 + default: + // Default to NearestNeighbor. + return 2, nearest + } +} + +// values <1 will sharpen the image +var blur = 1.0 + +// Resize scales an image to new width and height using the interpolation function interp. +// A new image with the given dimensions will be returned. +// If one of the parameters width or height is set to 0, its size will be calculated so that +// the aspect ratio is that of the originating image. +// The resizing algorithm uses channels for parallel computation. +func Resize(width, height uint, img image.Image, interp InterpolationFunction) image.Image { + scaleX, scaleY := calcFactors(width, height, float64(img.Bounds().Dx()), float64(img.Bounds().Dy())) + if width == 0 { + width = uint(0.7 + float64(img.Bounds().Dx())/scaleX) + } + if height == 0 { + height = uint(0.7 + float64(img.Bounds().Dy())/scaleY) + } + + // Trivial case: return input image + if int(width) == img.Bounds().Dx() && int(height) == img.Bounds().Dy() { + return img + } + + if interp == NearestNeighbor { + return resizeNearest(width, height, scaleX, scaleY, img, interp) + } + + taps, kernel := interp.kernel() + cpus := runtime.GOMAXPROCS(0) + wg := sync.WaitGroup{} + + // Generic access to image.Image is slow in tight loops. + // The optimal access has to be determined from the concrete image type. + switch input := img.(type) { + case *image.RGBA: + // 8-bit precision + temp := image.NewRGBA(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewRGBA(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights8(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA) + go func() { + defer wg.Done() + resizeRGBA(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights8(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA) + go func() { + defer wg.Done() + resizeRGBA(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.NRGBA: + // 8-bit precision + temp := image.NewRGBA(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewRGBA(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights8(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA) + go func() { + defer wg.Done() + resizeNRGBA(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights8(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA) + go func() { + defer wg.Done() + resizeRGBA(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + + case *image.YCbCr: + // 8-bit precision + // accessing the YCbCr arrays in a tight loop is slow. + // converting the image to ycc increases performance by 2x. + temp := newYCC(image.Rect(0, 0, input.Bounds().Dy(), int(width)), input.SubsampleRatio) + result := newYCC(image.Rect(0, 0, int(width), int(height)), image.YCbCrSubsampleRatio444) + + coeffs, offset, filterLength := createWeights8(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + in := imageYCbCrToYCC(input) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*ycc) + go func() { + defer wg.Done() + resizeYCbCr(in, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + coeffs, offset, filterLength = createWeights8(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*ycc) + go func() { + defer wg.Done() + resizeYCbCr(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result.YCbCr() + case *image.RGBA64: + // 16-bit precision + temp := image.NewRGBA64(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewRGBA64(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights16(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + resizeRGBA64(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights16(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + resizeRGBA64(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.NRGBA64: + // 16-bit precision + temp := image.NewRGBA64(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewRGBA64(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights16(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + resizeNRGBA64(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights16(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + resizeRGBA64(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.Gray: + // 8-bit precision + temp := image.NewGray(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewGray(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights8(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.Gray) + go func() { + defer wg.Done() + resizeGray(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights8(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.Gray) + go func() { + defer wg.Done() + resizeGray(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.Gray16: + // 16-bit precision + temp := image.NewGray16(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewGray16(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights16(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.Gray16) + go func() { + defer wg.Done() + resizeGray16(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights16(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.Gray16) + go func() { + defer wg.Done() + resizeGray16(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + default: + // 16-bit precision + temp := image.NewRGBA64(image.Rect(0, 0, img.Bounds().Dy(), int(width))) + result := image.NewRGBA64(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeights16(temp.Bounds().Dy(), taps, blur, scaleX, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + resizeGeneric(img, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeights16(result.Bounds().Dy(), taps, blur, scaleY, kernel) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + resizeRGBA64(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + } +} + +func resizeNearest(width, height uint, scaleX, scaleY float64, img image.Image, interp InterpolationFunction) image.Image { + taps, _ := interp.kernel() + cpus := runtime.GOMAXPROCS(0) + wg := sync.WaitGroup{} + + switch input := img.(type) { + case *image.RGBA: + // 8-bit precision + temp := image.NewRGBA(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewRGBA(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA) + go func() { + defer wg.Done() + nearestRGBA(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA) + go func() { + defer wg.Done() + nearestRGBA(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.NRGBA: + // 8-bit precision + temp := image.NewNRGBA(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewNRGBA(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.NRGBA) + go func() { + defer wg.Done() + nearestNRGBA(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.NRGBA) + go func() { + defer wg.Done() + nearestNRGBA(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.YCbCr: + // 8-bit precision + // accessing the YCbCr arrays in a tight loop is slow. + // converting the image to ycc increases performance by 2x. + temp := newYCC(image.Rect(0, 0, input.Bounds().Dy(), int(width)), input.SubsampleRatio) + result := newYCC(image.Rect(0, 0, int(width), int(height)), image.YCbCrSubsampleRatio444) + + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + in := imageYCbCrToYCC(input) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*ycc) + go func() { + defer wg.Done() + nearestYCbCr(in, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*ycc) + go func() { + defer wg.Done() + nearestYCbCr(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result.YCbCr() + case *image.RGBA64: + // 16-bit precision + temp := image.NewRGBA64(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewRGBA64(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + nearestRGBA64(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + nearestRGBA64(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.NRGBA64: + // 16-bit precision + temp := image.NewNRGBA64(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewNRGBA64(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.NRGBA64) + go func() { + defer wg.Done() + nearestNRGBA64(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.NRGBA64) + go func() { + defer wg.Done() + nearestNRGBA64(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.Gray: + // 8-bit precision + temp := image.NewGray(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewGray(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.Gray) + go func() { + defer wg.Done() + nearestGray(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.Gray) + go func() { + defer wg.Done() + nearestGray(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + case *image.Gray16: + // 16-bit precision + temp := image.NewGray16(image.Rect(0, 0, input.Bounds().Dy(), int(width))) + result := image.NewGray16(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.Gray16) + go func() { + defer wg.Done() + nearestGray16(input, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.Gray16) + go func() { + defer wg.Done() + nearestGray16(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + default: + // 16-bit precision + temp := image.NewRGBA64(image.Rect(0, 0, img.Bounds().Dy(), int(width))) + result := image.NewRGBA64(image.Rect(0, 0, int(width), int(height))) + + // horizontal filter, results in transposed temporary image + coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(temp, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + nearestGeneric(img, slice, scaleX, coeffs, offset, filterLength) + }() + } + wg.Wait() + + // horizontal filter on transposed image, result is not transposed + coeffs, offset, filterLength = createWeightsNearest(result.Bounds().Dy(), taps, blur, scaleY) + wg.Add(cpus) + for i := 0; i < cpus; i++ { + slice := makeSlice(result, i, cpus).(*image.RGBA64) + go func() { + defer wg.Done() + nearestRGBA64(temp, slice, scaleY, coeffs, offset, filterLength) + }() + } + wg.Wait() + return result + } + +} + +// Calculates scaling factors using old and new image dimensions. +func calcFactors(width, height uint, oldWidth, oldHeight float64) (scaleX, scaleY float64) { + if width == 0 { + if height == 0 { + scaleX = 1.0 + scaleY = 1.0 + } else { + scaleY = oldHeight / float64(height) + scaleX = scaleY + } + } else { + scaleX = oldWidth / float64(width) + if height == 0 { + scaleY = scaleX + } else { + scaleY = oldHeight / float64(height) + } + } + return +} + +type imageWithSubImage interface { + image.Image + SubImage(image.Rectangle) image.Image +} + +func makeSlice(img imageWithSubImage, i, n int) image.Image { + return img.SubImage(image.Rect(img.Bounds().Min.X, img.Bounds().Min.Y+i*img.Bounds().Dy()/n, img.Bounds().Max.X, img.Bounds().Min.Y+(i+1)*img.Bounds().Dy()/n)) +} diff --git a/vendor/github.com/nfnt/resize/resize_test.go b/vendor/github.com/nfnt/resize/resize_test.go new file mode 100644 index 0000000..d4b80be --- /dev/null +++ b/vendor/github.com/nfnt/resize/resize_test.go @@ -0,0 +1,330 @@ +package resize + +import ( + "image" + "image/color" + "runtime" + "testing" +) + +var img = image.NewGray16(image.Rect(0, 0, 3, 3)) + +func init() { + runtime.GOMAXPROCS(runtime.NumCPU()) + img.Set(1, 1, color.White) +} + +func Test_Param1(t *testing.T) { + m := Resize(0, 0, img, NearestNeighbor) + if m.Bounds() != img.Bounds() { + t.Fail() + } +} + +func Test_Param2(t *testing.T) { + m := Resize(100, 0, img, NearestNeighbor) + if m.Bounds() != image.Rect(0, 0, 100, 100) { + t.Fail() + } +} + +func Test_ZeroImg(t *testing.T) { + zeroImg := image.NewGray16(image.Rect(0, 0, 0, 0)) + + m := Resize(0, 0, zeroImg, NearestNeighbor) + if m.Bounds() != zeroImg.Bounds() { + t.Fail() + } +} + +func Test_CorrectResize(t *testing.T) { + zeroImg := image.NewGray16(image.Rect(0, 0, 256, 256)) + + m := Resize(60, 0, zeroImg, NearestNeighbor) + if m.Bounds() != image.Rect(0, 0, 60, 60) { + t.Fail() + } +} + +func Test_SameColorWithRGBA(t *testing.T) { + img := image.NewRGBA(image.Rect(0, 0, 20, 20)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ { + img.SetRGBA(x, y, color.RGBA{0x80, 0x80, 0x80, 0xFF}) + } + } + out := Resize(10, 10, img, Lanczos3) + for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ { + for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ { + color := out.At(x, y).(color.RGBA) + if color.R != 0x80 || color.G != 0x80 || color.B != 0x80 || color.A != 0xFF { + t.Errorf("%+v", color) + } + } + } +} + +func Test_SameColorWithNRGBA(t *testing.T) { + img := image.NewNRGBA(image.Rect(0, 0, 20, 20)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ { + img.SetNRGBA(x, y, color.NRGBA{0x80, 0x80, 0x80, 0xFF}) + } + } + out := Resize(10, 10, img, Lanczos3) + for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ { + for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ { + color := out.At(x, y).(color.RGBA) + if color.R != 0x80 || color.G != 0x80 || color.B != 0x80 || color.A != 0xFF { + t.Errorf("%+v", color) + } + } + } +} + +func Test_SameColorWithRGBA64(t *testing.T) { + img := image.NewRGBA64(image.Rect(0, 0, 20, 20)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ { + img.SetRGBA64(x, y, color.RGBA64{0x8000, 0x8000, 0x8000, 0xFFFF}) + } + } + out := Resize(10, 10, img, Lanczos3) + for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ { + for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ { + color := out.At(x, y).(color.RGBA64) + if color.R != 0x8000 || color.G != 0x8000 || color.B != 0x8000 || color.A != 0xFFFF { + t.Errorf("%+v", color) + } + } + } +} + +func Test_SameColorWithNRGBA64(t *testing.T) { + img := image.NewNRGBA64(image.Rect(0, 0, 20, 20)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ { + img.SetNRGBA64(x, y, color.NRGBA64{0x8000, 0x8000, 0x8000, 0xFFFF}) + } + } + out := Resize(10, 10, img, Lanczos3) + for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ { + for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ { + color := out.At(x, y).(color.RGBA64) + if color.R != 0x8000 || color.G != 0x8000 || color.B != 0x8000 || color.A != 0xFFFF { + t.Errorf("%+v", color) + } + } + } +} + +func Test_SameColorWithGray(t *testing.T) { + img := image.NewGray(image.Rect(0, 0, 20, 20)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ { + img.SetGray(x, y, color.Gray{0x80}) + } + } + out := Resize(10, 10, img, Lanczos3) + for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ { + for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ { + color := out.At(x, y).(color.Gray) + if color.Y != 0x80 { + t.Errorf("%+v", color) + } + } + } +} + +func Test_SameColorWithGray16(t *testing.T) { + img := image.NewGray16(image.Rect(0, 0, 20, 20)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ { + img.SetGray16(x, y, color.Gray16{0x8000}) + } + } + out := Resize(10, 10, img, Lanczos3) + for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ { + for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ { + color := out.At(x, y).(color.Gray16) + if color.Y != 0x8000 { + t.Errorf("%+v", color) + } + } + } +} + +func Test_Bounds(t *testing.T) { + img := image.NewRGBA(image.Rect(20, 10, 200, 99)) + out := Resize(80, 80, img, Lanczos2) + out.At(0, 0) +} + +func Test_SameSizeReturnsOriginal(t *testing.T) { + img := image.NewRGBA(image.Rect(0, 0, 10, 10)) + out := Resize(0, 0, img, Lanczos2) + + if img != out { + t.Fail() + } + + out = Resize(10, 10, img, Lanczos2) + + if img != out { + t.Fail() + } +} + +func Test_PixelCoordinates(t *testing.T) { + checkers := image.NewGray(image.Rect(0, 0, 4, 4)) + checkers.Pix = []uint8{ + 255, 0, 255, 0, + 0, 255, 0, 255, + 255, 0, 255, 0, + 0, 255, 0, 255, + } + + resized := Resize(12, 12, checkers, NearestNeighbor).(*image.Gray) + + if resized.Pix[0] != 255 || resized.Pix[1] != 255 || resized.Pix[2] != 255 { + t.Fail() + } + + if resized.Pix[3] != 0 || resized.Pix[4] != 0 || resized.Pix[5] != 0 { + t.Fail() + } +} + +func Test_ResizeWithPremultipliedAlpha(t *testing.T) { + img := image.NewRGBA(image.Rect(0, 0, 1, 4)) + for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ { + // 0x80 = 0.5 * 0xFF. + img.SetRGBA(0, y, color.RGBA{0x80, 0x80, 0x80, 0x80}) + } + + out := Resize(1, 2, img, MitchellNetravali) + + outputColor := out.At(0, 0).(color.RGBA) + if outputColor.R != 0x80 { + t.Fail() + } +} + +func Test_ResizeWithTranslucentColor(t *testing.T) { + img := image.NewNRGBA(image.Rect(0, 0, 1, 2)) + + // Set the pixel colors to an "invisible green" and white. + // After resizing, the green shouldn't be visible. + img.SetNRGBA(0, 0, color.NRGBA{0x00, 0xFF, 0x00, 0x00}) + img.SetNRGBA(0, 1, color.NRGBA{0x00, 0x00, 0x00, 0xFF}) + + out := Resize(1, 1, img, Bilinear) + + _, g, _, _ := out.At(0, 0).RGBA() + if g != 0x00 { + t.Errorf("%+v", g) + } +} + +const ( + // Use a small image size for benchmarks. We don't want memory performance + // to affect the benchmark results. + benchMaxX = 250 + benchMaxY = 250 + + // Resize values near the original size require increase the amount of time + // resize spends converting the image. + benchWidth = 200 + benchHeight = 200 +) + +func benchRGBA(b *testing.B, interp InterpolationFunction) { + m := image.NewRGBA(image.Rect(0, 0, benchMaxX, benchMaxY)) + // Initialize m's pixels to create a non-uniform image. + for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ { + for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ { + i := m.PixOffset(x, y) + m.Pix[i+0] = uint8(y + 4*x) + m.Pix[i+1] = uint8(y + 4*x) + m.Pix[i+2] = uint8(y + 4*x) + m.Pix[i+3] = uint8(4*y + x) + } + } + + var out image.Image + b.ResetTimer() + for i := 0; i < b.N; i++ { + out = Resize(benchWidth, benchHeight, m, interp) + } + out.At(0, 0) +} + +// The names of some interpolation functions are truncated so that the columns +// of 'go test -bench' line up. +func Benchmark_Nearest_RGBA(b *testing.B) { + benchRGBA(b, NearestNeighbor) +} + +func Benchmark_Bilinear_RGBA(b *testing.B) { + benchRGBA(b, Bilinear) +} + +func Benchmark_Bicubic_RGBA(b *testing.B) { + benchRGBA(b, Bicubic) +} + +func Benchmark_Mitchell_RGBA(b *testing.B) { + benchRGBA(b, MitchellNetravali) +} + +func Benchmark_Lanczos2_RGBA(b *testing.B) { + benchRGBA(b, Lanczos2) +} + +func Benchmark_Lanczos3_RGBA(b *testing.B) { + benchRGBA(b, Lanczos3) +} + +func benchYCbCr(b *testing.B, interp InterpolationFunction) { + m := image.NewYCbCr(image.Rect(0, 0, benchMaxX, benchMaxY), image.YCbCrSubsampleRatio422) + // Initialize m's pixels to create a non-uniform image. + for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ { + for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ { + yi := m.YOffset(x, y) + ci := m.COffset(x, y) + m.Y[yi] = uint8(16*y + x) + m.Cb[ci] = uint8(y + 16*x) + m.Cr[ci] = uint8(y + 16*x) + } + } + var out image.Image + b.ResetTimer() + for i := 0; i < b.N; i++ { + out = Resize(benchWidth, benchHeight, m, interp) + } + out.At(0, 0) +} + +func Benchmark_Nearest_YCC(b *testing.B) { + benchYCbCr(b, NearestNeighbor) +} + +func Benchmark_Bilinear_YCC(b *testing.B) { + benchYCbCr(b, Bilinear) +} + +func Benchmark_Bicubic_YCC(b *testing.B) { + benchYCbCr(b, Bicubic) +} + +func Benchmark_Mitchell_YCC(b *testing.B) { + benchYCbCr(b, MitchellNetravali) +} + +func Benchmark_Lanczos2_YCC(b *testing.B) { + benchYCbCr(b, Lanczos2) +} + +func Benchmark_Lanczos3_YCC(b *testing.B) { + benchYCbCr(b, Lanczos3) +} diff --git a/vendor/github.com/nfnt/resize/thumbnail.go b/vendor/github.com/nfnt/resize/thumbnail.go new file mode 100644 index 0000000..9efc246 --- /dev/null +++ b/vendor/github.com/nfnt/resize/thumbnail.go @@ -0,0 +1,55 @@ +/* +Copyright (c) 2012, Jan Schlicht + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import ( + "image" +) + +// Thumbnail will downscale provided image to max width and height preserving +// original aspect ratio and using the interpolation function interp. +// It will return original image, without processing it, if original sizes +// are already smaller than provided constraints. +func Thumbnail(maxWidth, maxHeight uint, img image.Image, interp InterpolationFunction) image.Image { + origBounds := img.Bounds() + origWidth := uint(origBounds.Dx()) + origHeight := uint(origBounds.Dy()) + newWidth, newHeight := origWidth, origHeight + + // Return original image if it have same or smaller size as constraints + if maxWidth >= origWidth && maxHeight >= origHeight { + return img + } + + // Preserve aspect ratio + if origWidth > maxWidth { + newHeight = uint(origHeight * maxWidth / origWidth) + if newHeight < 1 { + newHeight = 1 + } + newWidth = maxWidth + } + + if newHeight > maxHeight { + newWidth = uint(newWidth * maxHeight / newHeight) + if newWidth < 1 { + newWidth = 1 + } + newHeight = maxHeight + } + return Resize(newWidth, newHeight, img, interp) +} diff --git a/vendor/github.com/nfnt/resize/thumbnail_test.go b/vendor/github.com/nfnt/resize/thumbnail_test.go new file mode 100644 index 0000000..bd9875b --- /dev/null +++ b/vendor/github.com/nfnt/resize/thumbnail_test.go @@ -0,0 +1,47 @@ +package resize + +import ( + "image" + "runtime" + "testing" +) + +func init() { + runtime.GOMAXPROCS(runtime.NumCPU()) +} + +var thumbnailTests = []struct { + origWidth int + origHeight int + maxWidth uint + maxHeight uint + expectedWidth uint + expectedHeight uint +}{ + {5, 5, 10, 10, 5, 5}, + {10, 10, 5, 5, 5, 5}, + {10, 50, 10, 10, 2, 10}, + {50, 10, 10, 10, 10, 2}, + {50, 100, 60, 90, 45, 90}, + {120, 100, 60, 90, 60, 50}, + {200, 250, 200, 150, 120, 150}, +} + +func TestThumbnail(t *testing.T) { + for i, tt := range thumbnailTests { + img := image.NewGray16(image.Rect(0, 0, tt.origWidth, tt.origHeight)) + + outImg := Thumbnail(tt.maxWidth, tt.maxHeight, img, NearestNeighbor) + + newWidth := uint(outImg.Bounds().Dx()) + newHeight := uint(outImg.Bounds().Dy()) + if newWidth != tt.expectedWidth || + newHeight != tt.expectedHeight { + t.Errorf("%d. Thumbnail(%v, %v, img, NearestNeighbor) => "+ + "width: %v, height: %v, want width: %v, height: %v", + i, tt.maxWidth, tt.maxHeight, + newWidth, newHeight, tt.expectedWidth, tt.expectedHeight, + ) + } + } +} diff --git a/vendor/github.com/nfnt/resize/ycc.go b/vendor/github.com/nfnt/resize/ycc.go new file mode 100644 index 0000000..1041599 --- /dev/null +++ b/vendor/github.com/nfnt/resize/ycc.go @@ -0,0 +1,227 @@ +/* +Copyright (c) 2014, Charlie Vieth + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import ( + "image" + "image/color" +) + +// ycc is an in memory YCbCr image. The Y, Cb and Cr samples are held in a +// single slice to increase resizing performance. +type ycc struct { + // Pix holds the image's pixels, in Y, Cb, Cr order. The pixel at + // (x, y) starts at Pix[(y-Rect.Min.Y)*Stride + (x-Rect.Min.X)*3]. + Pix []uint8 + // Stride is the Pix stride (in bytes) between vertically adjacent pixels. + Stride int + // Rect is the image's bounds. + Rect image.Rectangle + // SubsampleRatio is the subsample ratio of the original YCbCr image. + SubsampleRatio image.YCbCrSubsampleRatio +} + +// PixOffset returns the index of the first element of Pix that corresponds to +// the pixel at (x, y). +func (p *ycc) PixOffset(x, y int) int { + return (y-p.Rect.Min.Y)*p.Stride + (x-p.Rect.Min.X)*3 +} + +func (p *ycc) Bounds() image.Rectangle { + return p.Rect +} + +func (p *ycc) ColorModel() color.Model { + return color.YCbCrModel +} + +func (p *ycc) At(x, y int) color.Color { + if !(image.Point{x, y}.In(p.Rect)) { + return color.YCbCr{} + } + i := p.PixOffset(x, y) + return color.YCbCr{ + p.Pix[i+0], + p.Pix[i+1], + p.Pix[i+2], + } +} + +func (p *ycc) Opaque() bool { + return true +} + +// SubImage returns an image representing the portion of the image p visible +// through r. The returned value shares pixels with the original image. +func (p *ycc) SubImage(r image.Rectangle) image.Image { + r = r.Intersect(p.Rect) + if r.Empty() { + return &ycc{SubsampleRatio: p.SubsampleRatio} + } + i := p.PixOffset(r.Min.X, r.Min.Y) + return &ycc{ + Pix: p.Pix[i:], + Stride: p.Stride, + Rect: r, + SubsampleRatio: p.SubsampleRatio, + } +} + +// newYCC returns a new ycc with the given bounds and subsample ratio. +func newYCC(r image.Rectangle, s image.YCbCrSubsampleRatio) *ycc { + w, h := r.Dx(), r.Dy() + buf := make([]uint8, 3*w*h) + return &ycc{Pix: buf, Stride: 3 * w, Rect: r, SubsampleRatio: s} +} + +// YCbCr converts ycc to a YCbCr image with the same subsample ratio +// as the YCbCr image that ycc was generated from. +func (p *ycc) YCbCr() *image.YCbCr { + ycbcr := image.NewYCbCr(p.Rect, p.SubsampleRatio) + var off int + + switch ycbcr.SubsampleRatio { + case image.YCbCrSubsampleRatio422: + for y := ycbcr.Rect.Min.Y; y < ycbcr.Rect.Max.Y; y++ { + yy := (y - ycbcr.Rect.Min.Y) * ycbcr.YStride + cy := (y - ycbcr.Rect.Min.Y) * ycbcr.CStride + for x := ycbcr.Rect.Min.X; x < ycbcr.Rect.Max.X; x++ { + xx := (x - ycbcr.Rect.Min.X) + yi := yy + xx + ci := cy + xx/2 + ycbcr.Y[yi] = p.Pix[off+0] + ycbcr.Cb[ci] = p.Pix[off+1] + ycbcr.Cr[ci] = p.Pix[off+2] + off += 3 + } + } + case image.YCbCrSubsampleRatio420: + for y := ycbcr.Rect.Min.Y; y < ycbcr.Rect.Max.Y; y++ { + yy := (y - ycbcr.Rect.Min.Y) * ycbcr.YStride + cy := (y/2 - ycbcr.Rect.Min.Y/2) * ycbcr.CStride + for x := ycbcr.Rect.Min.X; x < ycbcr.Rect.Max.X; x++ { + xx := (x - ycbcr.Rect.Min.X) + yi := yy + xx + ci := cy + xx/2 + ycbcr.Y[yi] = p.Pix[off+0] + ycbcr.Cb[ci] = p.Pix[off+1] + ycbcr.Cr[ci] = p.Pix[off+2] + off += 3 + } + } + case image.YCbCrSubsampleRatio440: + for y := ycbcr.Rect.Min.Y; y < ycbcr.Rect.Max.Y; y++ { + yy := (y - ycbcr.Rect.Min.Y) * ycbcr.YStride + cy := (y/2 - ycbcr.Rect.Min.Y/2) * ycbcr.CStride + for x := ycbcr.Rect.Min.X; x < ycbcr.Rect.Max.X; x++ { + xx := (x - ycbcr.Rect.Min.X) + yi := yy + xx + ci := cy + xx + ycbcr.Y[yi] = p.Pix[off+0] + ycbcr.Cb[ci] = p.Pix[off+1] + ycbcr.Cr[ci] = p.Pix[off+2] + off += 3 + } + } + default: + // Default to 4:4:4 subsampling. + for y := ycbcr.Rect.Min.Y; y < ycbcr.Rect.Max.Y; y++ { + yy := (y - ycbcr.Rect.Min.Y) * ycbcr.YStride + cy := (y - ycbcr.Rect.Min.Y) * ycbcr.CStride + for x := ycbcr.Rect.Min.X; x < ycbcr.Rect.Max.X; x++ { + xx := (x - ycbcr.Rect.Min.X) + yi := yy + xx + ci := cy + xx + ycbcr.Y[yi] = p.Pix[off+0] + ycbcr.Cb[ci] = p.Pix[off+1] + ycbcr.Cr[ci] = p.Pix[off+2] + off += 3 + } + } + } + return ycbcr +} + +// imageYCbCrToYCC converts a YCbCr image to a ycc image for resizing. +func imageYCbCrToYCC(in *image.YCbCr) *ycc { + w, h := in.Rect.Dx(), in.Rect.Dy() + r := image.Rect(0, 0, w, h) + buf := make([]uint8, 3*w*h) + p := ycc{Pix: buf, Stride: 3 * w, Rect: r, SubsampleRatio: in.SubsampleRatio} + var off int + + switch in.SubsampleRatio { + case image.YCbCrSubsampleRatio422: + for y := in.Rect.Min.Y; y < in.Rect.Max.Y; y++ { + yy := (y - in.Rect.Min.Y) * in.YStride + cy := (y - in.Rect.Min.Y) * in.CStride + for x := in.Rect.Min.X; x < in.Rect.Max.X; x++ { + xx := (x - in.Rect.Min.X) + yi := yy + xx + ci := cy + xx/2 + p.Pix[off+0] = in.Y[yi] + p.Pix[off+1] = in.Cb[ci] + p.Pix[off+2] = in.Cr[ci] + off += 3 + } + } + case image.YCbCrSubsampleRatio420: + for y := in.Rect.Min.Y; y < in.Rect.Max.Y; y++ { + yy := (y - in.Rect.Min.Y) * in.YStride + cy := (y/2 - in.Rect.Min.Y/2) * in.CStride + for x := in.Rect.Min.X; x < in.Rect.Max.X; x++ { + xx := (x - in.Rect.Min.X) + yi := yy + xx + ci := cy + xx/2 + p.Pix[off+0] = in.Y[yi] + p.Pix[off+1] = in.Cb[ci] + p.Pix[off+2] = in.Cr[ci] + off += 3 + } + } + case image.YCbCrSubsampleRatio440: + for y := in.Rect.Min.Y; y < in.Rect.Max.Y; y++ { + yy := (y - in.Rect.Min.Y) * in.YStride + cy := (y/2 - in.Rect.Min.Y/2) * in.CStride + for x := in.Rect.Min.X; x < in.Rect.Max.X; x++ { + xx := (x - in.Rect.Min.X) + yi := yy + xx + ci := cy + xx + p.Pix[off+0] = in.Y[yi] + p.Pix[off+1] = in.Cb[ci] + p.Pix[off+2] = in.Cr[ci] + off += 3 + } + } + default: + // Default to 4:4:4 subsampling. + for y := in.Rect.Min.Y; y < in.Rect.Max.Y; y++ { + yy := (y - in.Rect.Min.Y) * in.YStride + cy := (y - in.Rect.Min.Y) * in.CStride + for x := in.Rect.Min.X; x < in.Rect.Max.X; x++ { + xx := (x - in.Rect.Min.X) + yi := yy + xx + ci := cy + xx + p.Pix[off+0] = in.Y[yi] + p.Pix[off+1] = in.Cb[ci] + p.Pix[off+2] = in.Cr[ci] + off += 3 + } + } + } + return &p +} diff --git a/vendor/github.com/nfnt/resize/ycc_test.go b/vendor/github.com/nfnt/resize/ycc_test.go new file mode 100644 index 0000000..54d53d1 --- /dev/null +++ b/vendor/github.com/nfnt/resize/ycc_test.go @@ -0,0 +1,214 @@ +/* +Copyright (c) 2014, Charlie Vieth + +Permission to use, copy, modify, and/or distribute this software for any purpose +with or without fee is hereby granted, provided that the above copyright notice +and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND +FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER +TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. +*/ + +package resize + +import ( + "image" + "image/color" + "testing" +) + +type Image interface { + image.Image + SubImage(image.Rectangle) image.Image +} + +func TestImage(t *testing.T) { + testImage := []Image{ + newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio420), + newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio422), + newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio440), + newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio444), + } + for _, m := range testImage { + if !image.Rect(0, 0, 10, 10).Eq(m.Bounds()) { + t.Errorf("%T: want bounds %v, got %v", + m, image.Rect(0, 0, 10, 10), m.Bounds()) + continue + } + m = m.SubImage(image.Rect(3, 2, 9, 8)).(Image) + if !image.Rect(3, 2, 9, 8).Eq(m.Bounds()) { + t.Errorf("%T: sub-image want bounds %v, got %v", + m, image.Rect(3, 2, 9, 8), m.Bounds()) + continue + } + // Test that taking an empty sub-image starting at a corner does not panic. + m.SubImage(image.Rect(0, 0, 0, 0)) + m.SubImage(image.Rect(10, 0, 10, 0)) + m.SubImage(image.Rect(0, 10, 0, 10)) + m.SubImage(image.Rect(10, 10, 10, 10)) + } +} + +func TestConvertYCbCr(t *testing.T) { + testImage := []Image{ + image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio420), + image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio422), + image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio440), + image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio444), + } + + for _, img := range testImage { + m := img.(*image.YCbCr) + for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ { + for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ { + yi := m.YOffset(x, y) + ci := m.COffset(x, y) + m.Y[yi] = uint8(16*y + x) + m.Cb[ci] = uint8(y + 16*x) + m.Cr[ci] = uint8(y + 16*x) + } + } + + // test conversion from YCbCr to ycc + yc := imageYCbCrToYCC(m) + for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ { + for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ { + ystride := 3 * (m.Rect.Max.X - m.Rect.Min.X) + xstride := 3 + yi := m.YOffset(x, y) + ci := m.COffset(x, y) + si := (y * ystride) + (x * xstride) + if m.Y[yi] != yc.Pix[si] { + t.Errorf("Err Y - found: %d expected: %d x: %d y: %d yi: %d si: %d", + m.Y[yi], yc.Pix[si], x, y, yi, si) + } + if m.Cb[ci] != yc.Pix[si+1] { + t.Errorf("Err Cb - found: %d expected: %d x: %d y: %d ci: %d si: %d", + m.Cb[ci], yc.Pix[si+1], x, y, ci, si+1) + } + if m.Cr[ci] != yc.Pix[si+2] { + t.Errorf("Err Cr - found: %d expected: %d x: %d y: %d ci: %d si: %d", + m.Cr[ci], yc.Pix[si+2], x, y, ci, si+2) + } + } + } + + // test conversion from ycc back to YCbCr + ym := yc.YCbCr() + for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ { + for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ { + yi := m.YOffset(x, y) + ci := m.COffset(x, y) + if m.Y[yi] != ym.Y[yi] { + t.Errorf("Err Y - found: %d expected: %d x: %d y: %d yi: %d", + m.Y[yi], ym.Y[yi], x, y, yi) + } + if m.Cb[ci] != ym.Cb[ci] { + t.Errorf("Err Cb - found: %d expected: %d x: %d y: %d ci: %d", + m.Cb[ci], ym.Cb[ci], x, y, ci) + } + if m.Cr[ci] != ym.Cr[ci] { + t.Errorf("Err Cr - found: %d expected: %d x: %d y: %d ci: %d", + m.Cr[ci], ym.Cr[ci], x, y, ci) + } + } + } + } +} + +func TestYCbCr(t *testing.T) { + rects := []image.Rectangle{ + image.Rect(0, 0, 16, 16), + image.Rect(1, 0, 16, 16), + image.Rect(0, 1, 16, 16), + image.Rect(1, 1, 16, 16), + image.Rect(1, 1, 15, 16), + image.Rect(1, 1, 16, 15), + image.Rect(1, 1, 15, 15), + image.Rect(2, 3, 14, 15), + image.Rect(7, 0, 7, 16), + image.Rect(0, 8, 16, 8), + image.Rect(0, 0, 10, 11), + image.Rect(5, 6, 16, 16), + image.Rect(7, 7, 8, 8), + image.Rect(7, 8, 8, 9), + image.Rect(8, 7, 9, 8), + image.Rect(8, 8, 9, 9), + image.Rect(7, 7, 17, 17), + image.Rect(8, 8, 17, 17), + image.Rect(9, 9, 17, 17), + image.Rect(10, 10, 17, 17), + } + subsampleRatios := []image.YCbCrSubsampleRatio{ + image.YCbCrSubsampleRatio444, + image.YCbCrSubsampleRatio422, + image.YCbCrSubsampleRatio420, + image.YCbCrSubsampleRatio440, + } + deltas := []image.Point{ + image.Pt(0, 0), + image.Pt(1000, 1001), + image.Pt(5001, -400), + image.Pt(-701, -801), + } + for _, r := range rects { + for _, subsampleRatio := range subsampleRatios { + for _, delta := range deltas { + testYCbCr(t, r, subsampleRatio, delta) + } + } + if testing.Short() { + break + } + } +} + +func testYCbCr(t *testing.T, r image.Rectangle, subsampleRatio image.YCbCrSubsampleRatio, delta image.Point) { + // Create a YCbCr image m, whose bounds are r translated by (delta.X, delta.Y). + r1 := r.Add(delta) + img := image.NewYCbCr(r1, subsampleRatio) + + // Initialize img's pixels. For 422 and 420 subsampling, some of the Cb and Cr elements + // will be set multiple times. That's OK. We just want to avoid a uniform image. + for y := r1.Min.Y; y < r1.Max.Y; y++ { + for x := r1.Min.X; x < r1.Max.X; x++ { + yi := img.YOffset(x, y) + ci := img.COffset(x, y) + img.Y[yi] = uint8(16*y + x) + img.Cb[ci] = uint8(y + 16*x) + img.Cr[ci] = uint8(y + 16*x) + } + } + + m := imageYCbCrToYCC(img) + + // Make various sub-images of m. + for y0 := delta.Y + 3; y0 < delta.Y+7; y0++ { + for y1 := delta.Y + 8; y1 < delta.Y+13; y1++ { + for x0 := delta.X + 3; x0 < delta.X+7; x0++ { + for x1 := delta.X + 8; x1 < delta.X+13; x1++ { + subRect := image.Rect(x0, y0, x1, y1) + sub := m.SubImage(subRect).(*ycc) + + // For each point in the sub-image's bounds, check that m.At(x, y) equals sub.At(x, y). + for y := sub.Rect.Min.Y; y < sub.Rect.Max.Y; y++ { + for x := sub.Rect.Min.X; x < sub.Rect.Max.X; x++ { + color0 := m.At(x, y).(color.YCbCr) + color1 := sub.At(x, y).(color.YCbCr) + if color0 != color1 { + t.Errorf("r=%v, subsampleRatio=%v, delta=%v, x=%d, y=%d, color0=%v, color1=%v", + r, subsampleRatio, delta, x, y, color0, color1) + return + } + } + } + } + } + } + } +} diff --git a/vendor/github.com/nyarla/go-crypt/.travis.yml b/vendor/github.com/nyarla/go-crypt/.travis.yml new file mode 100644 index 0000000..57bd4a7 --- /dev/null +++ b/vendor/github.com/nyarla/go-crypt/.travis.yml @@ -0,0 +1,7 @@ +language: go + +go: + - 1.1 + - 1.2 + - 1.3 + - tip diff --git a/vendor/github.com/nyarla/go-crypt/LICENSE b/vendor/github.com/nyarla/go-crypt/LICENSE new file mode 100644 index 0000000..72b0500 --- /dev/null +++ b/vendor/github.com/nyarla/go-crypt/LICENSE @@ -0,0 +1,14 @@ +Copyright (c) 2009, +Copyright (c) 2013-2014 Naoki OKAMURA (Nyarla) + +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/nyarla/go-crypt/README.md b/vendor/github.com/nyarla/go-crypt/README.md new file mode 100644 index 0000000..5b1322e --- /dev/null +++ b/vendor/github.com/nyarla/go-crypt/README.md @@ -0,0 +1,42 @@ +crypt +===== + +A golang implementation of crypt(3). + + +[![Build Status](https://travis-ci.org/nyarla/go-crypt.svg?branch=master)](https://travis-ci.org/nyarla/go-crypt) [![GoDoc](http://godoc.org/github.com/nyarla/go-crypt?status.svg)](https://godoc.org/github.com/nyarla/go-crypt) + +EXAMPLES CODE +------------- + +```go +import ( + "fmt" + + "github.com/nyarlabo/go-crypt" +) + +func main() { + fmt.Println(crypt.Crypt("testtest", "es")); // esDRYJnY4VaGM +} +``` + +WHY I FROKED IT? +---------------- + +Original implementation is writte by iasija at 2009-12-08, +and original implementation is not supported golang 1.1 or later. + +So I fork it for fix this issue, and I added documenation and test code. + +Original implementation is hosting on [code.google.com/p/go-crypt](https://code.google.com/p/go-crypt), +and that source code is under the 3-Clause BSD. + +NOTE: I could't find to iasija's contact address. + +COPYRIGTS AND LICENSE +--------------------- + + 1. Original Implementation: Copyright (c) 2009 iasija All Rights Reserved. ([BSD-3-Clause](http://opensource.org/licenses/BSD-3-Clause)) + 2. Modification Codes: Copyright (c) 22013-2015 Naoki OKAMURA a.k.a nyarla Some Rights Reserved. ([BSD-3-Clause](http://opensource.org/licenses/BSD-3-Clause)) + diff --git a/vendor/github.com/nyarla/go-crypt/crypt.go b/vendor/github.com/nyarla/go-crypt/crypt.go new file mode 100644 index 0000000..2dee9f1 --- /dev/null +++ b/vendor/github.com/nyarla/go-crypt/crypt.go @@ -0,0 +1,276 @@ +package crypt + +import ( + "bytes" +) + +var PC1_C = []byte{ + 57, 49, 41, 33, 25, 17, 9, + 1, 58, 50, 42, 34, 26, 18, + 10, 2, 59, 51, 43, 35, 27, + 19, 11, 3, 60, 52, 44, 36, +} + +var PC1_D = []byte{ + 63, 55, 47, 39, 31, 23, 15, + 7, 62, 54, 46, 38, 30, 22, + 14, 6, 61, 53, 45, 37, 29, + 21, 13, 5, 28, 20, 12, 4, +} + +var PC2_C = []byte{ + 14, 17, 11, 24, 1, 5, + 3, 28, 15, 6, 21, 10, + 23, 19, 12, 4, 26, 8, + 16, 7, 27, 20, 13, 2, +} +var PC2_D = []byte{ + 41, 52, 31, 37, 47, 55, + 30, 40, 51, 45, 33, 48, + 44, 49, 39, 56, 34, 53, + 46, 42, 50, 36, 29, 32, +} + +var e2 = []byte{ + 32, 1, 2, 3, 4, 5, + 4, 5, 6, 7, 8, 9, + 8, 9, 10, 11, 12, 13, + 12, 13, 14, 15, 16, 17, + 16, 17, 18, 19, 20, 21, + 20, 21, 22, 23, 24, 25, + 24, 25, 26, 27, 28, 29, + 28, 29, 30, 31, 32, 1, +} + +var IP = []byte{ + 58, 50, 42, 34, 26, 18, 10, 2, + 60, 52, 44, 36, 28, 20, 12, 4, + 62, 54, 46, 38, 30, 22, 14, 6, + 64, 56, 48, 40, 32, 24, 16, 8, + 57, 49, 41, 33, 25, 17, 9, 1, + 59, 51, 43, 35, 27, 19, 11, 3, + 61, 53, 45, 37, 29, 21, 13, 5, + 63, 55, 47, 39, 31, 23, 15, 7, +} + +var FP = []byte{ + 40, 8, 48, 16, 56, 24, 64, 32, + 39, 7, 47, 15, 55, 23, 63, 31, + 38, 6, 46, 14, 54, 22, 62, 30, + 37, 5, 45, 13, 53, 21, 61, 29, + 36, 4, 44, 12, 52, 20, 60, 28, + 35, 3, 43, 11, 51, 19, 59, 27, + 34, 2, 42, 10, 50, 18, 58, 26, + 33, 1, 41, 9, 49, 17, 57, 25, +} + +var S = [][]byte{ + []byte{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7, + 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8, + 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0, + 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}, + []byte{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10, + 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5, + 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15, + 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}, + []byte{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8, + 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1, + 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7, + 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}, + []byte{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15, + 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9, + 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4, + 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}, + []byte{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9, + 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6, + 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14, + 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}, + []byte{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11, + 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8, + 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6, + 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}, + []byte{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1, + 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6, + 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2, + 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}, + []byte{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7, + 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2, + 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8, + 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}, +} + +var P = []byte{ + 16, 7, 20, 21, 29, 12, 28, 17, + 1, 15, 23, 26, 5, 18, 31, 10, + 2, 8, 24, 14, 32, 27, 3, 9, + 19, 13, 30, 6, 22, 11, 4, 25, +} + +var shift = []int{1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1} + +// Crypt is a implementation of crypt(3) like as perl or ruby and ...etc. +// +// Behavior of this func is same as perl-5.18.2's crypt on OSX Yosemite. +func Crypt(pw string, salt string) string { + if sLen := len(salt); sLen < 2 { + src := []byte(salt) + for len(src) < 2 { + src = append(src, 0x00) + } + salt = string(src) + } + + block := make([]byte, 66) + + for i := 0; i < 8 && i < len(pw); i++ { + for j := 0; j < 7; j++ { + block[(8*i)+j] = (pw[i] >> byte(6-j)) & 1 + } + } + + C := make([]byte, 28) + D := make([]byte, 28) + + for i := 0; i < 28; i++ { + C[i] = block[PC1_C[i]-1] + D[i] = block[PC1_D[i]-1] + } + + KS := make([][]byte, 16) + for i := 0; i < 16; i++ { + KS[i] = make([]byte, 48) + } + + for i := 0; i < 16; i++ { + for k := 0; k < shift[i]; k++ { + t := C[0] + for j := 0; j < 28-1; j++ { + C[j] = C[j+1] + } + C[27] = t + t = D[0] + for j := 0; j < 28-1; j++ { + D[j] = D[j+1] + } + D[27] = t + } + for j := 0; j < 24; j++ { + KS[i][j] = C[PC2_C[j]-1] + KS[i][j+24] = D[PC2_D[j]-28-1] + } + } + + E := make([]byte, 48) + for i := 0; i < 48; i++ { + E[i] = e2[i] + } + + iobuf := make([]byte, 16) + for i := 0; i < 2; i++ { + c := byte(salt[i]) + iobuf[i] = c + + if c > 'Z' { + c -= 6 + } + if c > '9' { + c -= 7 + } + + c -= '.' + + for j := 0; j < 6; j++ { + if (c>>byte(j))&1 != 0 { + k := E[6*i+j] + E[6*i+j] = E[6*i+j+24] + E[6*i+j+24] = k + } + } + } + + for i := 0; i < 66; i++ { + block[i] = 0 + } + + R := make([]byte, 32) + L := make([]byte, 32) + DMY := make([]byte, 32) + preS := make([]byte, 48) + f := make([]byte, 32) + dmy_block := make([]byte, 64) + + for m := 0; m < 25; m++ { + for i := 0; i < 32; i++ { + L[i] = block[IP[i]-1] + } + for i := 32; i < 64; i++ { + R[i-32] = block[IP[i]-1] + } + + for i := 0; i < 16; i++ { + for j := 0; j < 32; j++ { + DMY[j] = R[j] + } + for j := 0; j < 48; j++ { + preS[j] = R[E[j]-1] ^ KS[i][j] + } + for j := 0; j < 8; j++ { + t := 6 * j + k := S[j][(preS[t+0]<<5)+ + (preS[t+1]<<3)+ + (preS[t+2]<<2)+ + (preS[t+3]<<1)+ + (preS[t+4]<<0)+ + (preS[t+5]<<4)] + + t = 4 * j + f[t+0] = (k >> 3) & 01 + f[t+1] = (k >> 2) & 01 + f[t+2] = (k >> 1) & 01 + f[t+3] = (k >> 0) & 01 + } + for j := 0; j < 32; j++ { + R[j] = L[j] ^ f[P[j]-1] + } + for j := 0; j < 32; j++ { + L[j] = DMY[j] + } + } + + for i := 0; i < 32; i++ { + L[i], R[i] = R[i], L[i] + } + + for i := 0; i < 32; i++ { + dmy_block[i] = L[i] + } + for i := 32; i < 64; i++ { + dmy_block[i] = R[i-32] + } + for i := 0; i < 64; i++ { + block[i] = dmy_block[FP[i]-1] + } + } + var i int + for i = 0; i < 11; i++ { + c := byte(0) + for j := 0; j < 6; j++ { + c = c << 1 + c = c | block[6*i+j] + } + c = c + '.' + + if c > '9' { + c += 7 + } + if c > 'Z' { + c += 6 + } + + iobuf[i+2] = c + } + + iobuf[i+2] = 0 + + return string(bytes.Replace(iobuf, []byte{0x00}, []byte{}, -1)) +} diff --git a/vendor/github.com/nyarla/go-crypt/crypt_test.go b/vendor/github.com/nyarla/go-crypt/crypt_test.go new file mode 100644 index 0000000..0d28902 --- /dev/null +++ b/vendor/github.com/nyarla/go-crypt/crypt_test.go @@ -0,0 +1,18 @@ +package crypt + +import ( + "fmt" + "testing" +) + +func TestCrypt(t *testing.T) { + if ret := Crypt("testtest", "es"); ret != `esDRYJnY4VaGM` { + t.Fatal(fmt.Sprintf(`result of Crypt is musmatch: %+v`, []byte(ret))) + } +} + +func ExampleCrypt() { + fmt.Println(Crypt("testtest", "es")) + // Output: + // esDRYJnY4VaGM +} diff --git a/vendor/github.com/nyarla/go-crypt/doc.go b/vendor/github.com/nyarla/go-crypt/doc.go new file mode 100644 index 0000000..005fa51 --- /dev/null +++ b/vendor/github.com/nyarla/go-crypt/doc.go @@ -0,0 +1,11 @@ +// Package crypt is a implementation of crypt(3) by golang. +// +// This is a fork of iasija's orignal implementation. +// +// Orignal soruce code Copyrights (C) iasija All rights reserved, +// and original source code is under the 3-Clause BSD. +// +// Modification codes for supporting latest golang and added test codes are +// Copyright (c) 2013-2014 Naoki OKAMURA , +// and modifiration code and test codes are under same as the orignal source code license. (3-Clause BSD) +package crypt diff --git a/version.go b/version.go index f6ffa95..85f9f6c 100644 --- a/version.go +++ b/version.go @@ -4,17 +4,12 @@ import ( "io" ) -const VERSION = 0.3 - -var ApiVersionRouting = map[string]struct { - AuthFunction - DispatchFunction -}{ +var ApiVersionRouting = map[string]struct{AuthFunction; DispatchFunction}{ "GET": {PublicPage, showVersion}, } func showVersion(u *User, args []string, body io.ReadCloser) (interface{}, error) { - m := map[string]interface{}{"version": VERSION} + m := map[string]interface{}{"version": 0.1} if u != nil { m["youare"] = *u