mirror of https://github.com/anoshenko/rui.git
139 lines
3.5 KiB
Go
139 lines
3.5 KiB
Go
package rui
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import (
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"fmt"
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"strings"
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)
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const (
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// VideoWidth is the constant for the "video-width" property tag of VideoPlayer.
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// The "video-width" float property defines the width of the video's display area in pixels.
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VideoWidth = "video-width"
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// VideoHeight is the constant for the "video-height" property tag of VideoPlayer.
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// The "video-height" float property defines the height of the video's display area in pixels.
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VideoHeight = "video-height"
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// Poster is the constant for the "poster" property tag of VideoPlayer.
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// The "poster" property defines an URL for an image to be shown while the video is downloading.
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// If this attribute isn't specified, nothing is displayed until the first frame is available,
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// then the first frame is shown as the poster frame.
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Poster = "poster"
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)
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type VideoPlayer interface {
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MediaPlayer
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}
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type videoPlayerData struct {
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mediaPlayerData
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}
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// NewVideoPlayer create new MediaPlayer object and return it
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func NewVideoPlayer(session Session, params Params) VideoPlayer {
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view := new(videoPlayerData)
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view.Init(session)
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view.tag = "VideoPlayer"
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setInitParams(view, params)
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return view
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}
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func newVideoPlayer(session Session) View {
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return NewVideoPlayer(session, nil)
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}
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func (player *videoPlayerData) Init(session Session) {
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player.mediaPlayerData.Init(session)
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player.tag = "VideoPlayer"
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}
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func (player *videoPlayerData) String() string {
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return getViewString(player)
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}
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func (player *videoPlayerData) htmlTag() string {
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return "video"
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}
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func (player *videoPlayerData) Remove(tag string) {
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player.remove(strings.ToLower(tag))
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}
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func (player *videoPlayerData) remove(tag string) {
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switch tag {
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case VideoWidth:
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delete(player.properties, tag)
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removeProperty(player.htmlID(), "width", player.Session())
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case VideoHeight:
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delete(player.properties, tag)
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removeProperty(player.htmlID(), "height", player.Session())
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case Poster:
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delete(player.properties, tag)
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removeProperty(player.htmlID(), Poster, player.Session())
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default:
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player.mediaPlayerData.remove(tag)
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}
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}
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func (player *videoPlayerData) Set(tag string, value any) bool {
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return player.set(strings.ToLower(tag), value)
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}
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func (player *videoPlayerData) set(tag string, value any) bool {
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if value == nil {
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player.remove(tag)
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return true
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}
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if player.mediaPlayerData.set(tag, value) {
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session := player.Session()
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updateSize := func(cssTag string) {
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if size, ok := floatProperty(player, tag, session, 0); ok {
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if size > 0 {
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updateProperty(player.htmlID(), cssTag, fmt.Sprintf("%g", size), session)
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} else {
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removeProperty(player.htmlID(), cssTag, session)
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}
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}
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}
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switch tag {
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case VideoWidth:
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updateSize("width")
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case VideoHeight:
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updateSize("height")
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case Poster:
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if url, ok := stringProperty(player, Poster, session); ok {
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updateProperty(player.htmlID(), Poster, url, session)
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}
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}
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return true
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}
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return false
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}
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func (player *videoPlayerData) htmlProperties(self View, buffer *strings.Builder) {
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player.mediaPlayerData.htmlProperties(self, buffer)
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session := player.Session()
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if size, ok := floatProperty(player, VideoWidth, session, 0); ok && size > 0 {
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buffer.WriteString(fmt.Sprintf(` width="%g"`, size))
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}
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if size, ok := floatProperty(player, VideoHeight, session, 0); ok && size > 0 {
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buffer.WriteString(fmt.Sprintf(` height="%g"`, size))
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}
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if url, ok := stringProperty(player, Poster, session); ok && url != "" {
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buffer.WriteString(` poster="`)
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buffer.WriteString(url)
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buffer.WriteString(`"`)
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}
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}
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