mirror of https://github.com/anoshenko/rui.git
126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
package rui
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import (
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"strings"
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)
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// Constants for [VideoPlayer] specific properties and events
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const (
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// VideoWidth is the constant for "video-width" property tag.
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//
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// Used by VideoPlayer.
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// Defines the width of the video's display area in pixels.
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//
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// Supported types: float, int, string.
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//
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// Values:
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// Internal type is float, other types converted to it during assignment.
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VideoWidth PropertyName = "video-width"
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// VideoHeight is the constant for "video-height" property tag.
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//
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// Used by VideoPlayer.
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// Defines the height of the video's display area in pixels.
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//
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// Supported types: float, int, string.
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//
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// Internal type is float, other types converted to it during assignment.
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VideoHeight PropertyName = "video-height"
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// Poster is the constant for "poster" property tag.
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//
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// Used by VideoPlayer.
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// Defines an URL for an image to be shown while the video is downloading. If this attribute isn't specified, nothing is
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// displayed until the first frame is available, then the first frame is shown as the poster frame.
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//
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// Supported types: string.
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Poster PropertyName = "poster"
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)
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// VideoPlayer is a type of a [View] which can play video files
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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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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 new(videoPlayerData) // 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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player.changed = player.propertyChanged
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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) propertyChanged(tag PropertyName) {
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session := player.Session()
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updateSize := func(cssTag string) {
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if size, ok := floatTextProperty(player, tag, session, 0); ok {
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if size != "0" {
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session.updateProperty(player.htmlID(), cssTag, size)
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} else {
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session.removeProperty(player.htmlID(), cssTag)
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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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session.updateProperty(player.htmlID(), string(Poster), url)
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} else {
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session.removeProperty(player.htmlID(), string(Poster))
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}
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default:
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player.mediaPlayerData.propertyChanged(tag)
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}
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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 := floatTextProperty(player, VideoWidth, session, 0); ok && size != "0" {
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buffer.WriteString(` width="`)
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buffer.WriteString(size)
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buffer.WriteString(`"`)
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}
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if size, ok := floatTextProperty(player, VideoHeight, session, 0); ok && size != "0" {
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buffer.WriteString(` height="`)
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buffer.WriteString(size)
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buffer.WriteString(`"`)
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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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