659 lines
20 KiB
JavaScript
659 lines
20 KiB
JavaScript
const React = require('react')
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const Bitfield = require('bitfield')
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const prettyBytes = require('prettier-bytes')
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const zeroFill = require('zero-fill')
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const TorrentSummary = require('../lib/torrent-summary')
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const Playlist = require('../lib/playlist')
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const {dispatch, dispatcher} = require('../lib/dispatcher')
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const config = require('../../config')
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// Shows a streaming video player. Standard features + Chromecast + Airplay
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module.exports = class Player extends React.Component {
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render () {
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// Show the video as large as will fit in the window, play immediately
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// If the video is on Chromecast or Airplay, show a title screen instead
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const state = this.props.state
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const showVideo = state.playing.location === 'local'
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const showControls = state.playing.location !== 'external'
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return (
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<div
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className='player'
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onWheel={handleVolumeWheel}
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onMouseMove={dispatcher('mediaMouseMoved')}>
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{showVideo ? renderMedia(state) : renderCastScreen(state)}
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{showControls ? renderPlayerControls(state) : null}
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</div>
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)
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}
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onComponentWillUnmount () {
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// Unload the media element so that Chromium stops trying to fetch data
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const tag = document.querySelector('audio,video')
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if (!tag) return
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tag.pause()
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tag.src = ''
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tag.load()
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}
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}
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// Handles volume change by wheel
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function handleVolumeWheel (e) {
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dispatch('changeVolume', (-e.deltaY | e.deltaX) / 500)
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}
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function renderMedia (state) {
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if (!state.server) return
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// Unfortunately, play/pause can't be done just by modifying HTML.
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// Instead, grab the DOM node and play/pause it if necessary
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// Get the <video> or <audio> tag
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const mediaElement = document.querySelector(state.playing.type)
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if (mediaElement !== null) {
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if (state.playing.isPaused && !mediaElement.paused) {
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mediaElement.pause()
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} else if (!state.playing.isPaused && mediaElement.paused) {
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mediaElement.play()
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}
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// When the user clicks or drags on the progress bar, jump to that position
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if (state.playing.jumpToTime != null) {
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mediaElement.currentTime = state.playing.jumpToTime
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state.playing.jumpToTime = null
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}
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if (state.playing.playbackRate !== mediaElement.playbackRate) {
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mediaElement.playbackRate = state.playing.playbackRate
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}
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// Recover previous volume
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if (state.previousVolume !== null && isFinite(state.previousVolume)) {
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mediaElement.volume = state.previousVolume
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state.previousVolume = null
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}
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// Set volume
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if (state.playing.setVolume !== null && isFinite(state.playing.setVolume)) {
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mediaElement.volume = state.playing.setVolume
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state.playing.setVolume = null
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}
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// Switch to the newly added subtitle track, if available
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const tracks = mediaElement.textTracks || []
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for (let j = 0; j < tracks.length; j++) {
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const isSelectedTrack = j === state.playing.subtitles.selectedIndex
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tracks[j].mode = isSelectedTrack ? 'showing' : 'hidden'
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}
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// Save video position
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const file = state.getPlayingFileSummary()
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file.currentTime = state.playing.currentTime = mediaElement.currentTime
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file.duration = state.playing.duration = mediaElement.duration
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// Save selected subtitle
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if (state.playing.subtitles.selectedIndex !== -1) {
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const index = state.playing.subtitles.selectedIndex
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file.selectedSubtitle = state.playing.subtitles.tracks[index].filePath
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} else if (file.selectedSubtitle != null) {
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delete file.selectedSubtitle
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}
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state.playing.volume = mediaElement.volume
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}
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// Add subtitles to the <video> tag
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const trackTags = []
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if (state.playing.subtitles.selectedIndex >= 0) {
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for (let i = 0; i < state.playing.subtitles.tracks.length; i++) {
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const track = state.playing.subtitles.tracks[i]
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const isSelected = state.playing.subtitles.selectedIndex === i
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trackTags.push(
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<track
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key={i}
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default={isSelected ? 'default' : ''}
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label={track.label}
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type='subtitles'
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src={track.buffer} />
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)
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}
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}
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// Create the <audio> or <video> tag
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const MediaTagName = state.playing.type
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const mediaTag = (
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<MediaTagName
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src={Playlist.getCurrentLocalURL(state)}
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onDoubleClick={dispatcher('toggleFullScreen')}
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onLoadedMetadata={onLoadedMetadata}
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onEnded={onEnded}
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onStalled={dispatcher('mediaStalled')}
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onError={dispatcher('mediaError')}
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onTimeUpdate={dispatcher('mediaTimeUpdate')}
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onEncrypted={dispatcher('mediaEncrypted')}
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onCanPlay={onCanPlay}>
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{trackTags}
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</MediaTagName>
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)
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// Show the media.
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return (
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<div
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key='letterbox'
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className='letterbox'
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onMouseMove={dispatcher('mediaMouseMoved')}>
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{mediaTag}
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{renderOverlay(state)}
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</div>
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)
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// As soon as we know the video dimensions, resize the window
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function onLoadedMetadata (e) {
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if (state.playing.type !== 'video') return
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const video = e.target
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const dimensions = {
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width: video.videoWidth,
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height: video.videoHeight
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}
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dispatch('setDimensions', dimensions)
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}
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function onEnded (e) {
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if (Playlist.hasNext(state)) {
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dispatch('nextTrack')
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} else {
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// When the last video completes, pause the video instead of looping
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state.playing.isPaused = true
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}
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}
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function onCanPlay (e) {
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const elem = e.target
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if (state.playing.type === 'video' &&
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elem.webkitVideoDecodedByteCount === 0) {
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dispatch('mediaError', 'Video codec unsupported')
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} else if (elem.webkitAudioDecodedByteCount === 0) {
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dispatch('mediaError', 'Audio codec unsupported')
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} else {
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dispatch('mediaSuccess')
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elem.play()
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}
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}
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}
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function renderOverlay (state) {
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const elems = []
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const audioMetadataElem = renderAudioMetadata(state)
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const spinnerElem = renderLoadingSpinner(state)
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if (audioMetadataElem) elems.push(audioMetadataElem)
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if (spinnerElem) elems.push(spinnerElem)
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// Video fills the window, centered with black bars if necessary
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// Audio gets a static poster image and a summary of the file metadata.
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let style
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if (state.playing.type === 'audio') {
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style = { backgroundImage: cssBackgroundImagePoster(state) }
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} else if (elems.length !== 0) {
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style = { backgroundImage: cssBackgroundImageDarkGradient() }
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} else {
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// Video playing, so no spinner. No overlay needed
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return
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}
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return (
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<div key='overlay' className='media-overlay-background' style={style}>
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<div className='media-overlay'>{elems}</div>
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</div>
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)
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}
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function renderAudioMetadata (state) {
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const fileSummary = state.getPlayingFileSummary()
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if (!fileSummary.audioInfo) return
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const info = fileSummary.audioInfo
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// Get audio track info
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let title = info.title
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if (!title) {
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title = fileSummary.name
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}
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let artist = info.artist && info.artist[0]
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let album = info.album
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if (album && info.year && !album.includes(info.year)) {
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album += ' (' + info.year + ')'
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}
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let track
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if (info.track && info.track.no && info.track.of) {
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track = info.track.no + ' of ' + info.track.of
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}
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// Show a small info box in the middle of the screen with title/album/etc
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const elems = []
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if (artist) {
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elems.push((
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<div key='artist' className='audio-artist'>
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<label>Artist</label>{artist}
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</div>
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))
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}
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if (album) {
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elems.push((
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<div key='album' className='audio-album'>
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<label>Album</label>{album}
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</div>
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))
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}
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if (track) {
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elems.push((
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<div key='track' className='audio-track'>
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<label>Track</label>{track}
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</div>
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))
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}
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// Align the title with the other info, if available. Otherwise, center title
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const emptyLabel = (<label />)
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elems.unshift((
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<div key='title' className='audio-title'>
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{elems.length ? emptyLabel : undefined}{title}
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</div>
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))
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return (<div key='audio-metadata' className='audio-metadata'>{elems}</div>)
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}
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function renderLoadingSpinner (state) {
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if (state.playing.isPaused) return
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const isProbablyStalled = state.playing.isStalled ||
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(new Date().getTime() - state.playing.lastTimeUpdate > 2000)
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if (!isProbablyStalled) return
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const prog = state.getPlayingTorrentSummary().progress || {}
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let fileProgress = 0
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if (prog.files) {
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const file = prog.files[state.playing.fileIndex]
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fileProgress = Math.floor(100 * file.numPiecesPresent / file.numPieces)
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}
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return (
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<div key='loading' className='media-stalled'>
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<div key='loading-spinner' className='loading-spinner'> </div>
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<div key='loading-progress' className='loading-status ellipsis'>
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<span className='progress'>{fileProgress}%</span> downloaded,
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<span>↓ {prettyBytes(prog.downloadSpeed || 0)}/s</span>
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<span>↑ {prettyBytes(prog.uploadSpeed || 0)}/s</span>
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</div>
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</div>
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)
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}
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function renderCastScreen (state) {
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let castIcon, castType, isCast
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if (state.playing.location.startsWith('chromecast')) {
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castIcon = 'cast_connected'
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castType = 'Chromecast'
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isCast = true
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} else if (state.playing.location.startsWith('airplay')) {
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castIcon = 'airplay'
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castType = 'AirPlay'
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isCast = true
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} else if (state.playing.location.startsWith('dlna')) {
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castIcon = 'tv'
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castType = 'DLNA'
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isCast = true
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} else if (state.playing.location === 'external') {
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castIcon = 'tv'
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castType = state.getExternalPlayerName()
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isCast = false
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} else if (state.playing.location === 'error') {
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castIcon = 'error_outline'
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castType = 'Error'
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isCast = false
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}
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const isStarting = state.playing.location.endsWith('-pending')
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const castName = state.playing.castName
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let castStatus
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if (isCast && isStarting) castStatus = 'Connecting to ' + castName + '...'
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else if (isCast && !isStarting) castStatus = 'Connected to ' + castName
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else castStatus = ''
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// Show a nice title image, if possible
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const style = {
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backgroundImage: cssBackgroundImagePoster(state)
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}
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return (
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<div key='cast' className='letterbox' style={style}>
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<div className='cast-screen'>
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<i className='icon'>{castIcon}</i>
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<div key='type' className='cast-type'>{castType}</div>
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<div key='status' className='cast-status'>{castStatus}</div>
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</div>
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</div>
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)
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}
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function renderCastOptions (state) {
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if (!state.devices.castMenu) return
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const {location, devices} = state.devices.castMenu
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const player = state.devices[location]
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const items = devices.map(function (device, ix) {
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const isSelected = player.device === device
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const name = device.name
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return (
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<li key={ix} onClick={dispatcher('selectCastDevice', ix)}>
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<i className='icon'>{isSelected ? 'radio_button_checked' : 'radio_button_unchecked'}</i>
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{name}
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</li>
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)
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})
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return (
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<ul key='cast-options' className='options-list'>
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{items}
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</ul>
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)
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}
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function renderSubtitleOptions (state) {
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const subtitles = state.playing.subtitles
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if (!subtitles.tracks.length || !subtitles.showMenu) return
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const items = subtitles.tracks.map(function (track, ix) {
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const isSelected = state.playing.subtitles.selectedIndex === ix
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return (
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<li key={ix} onClick={dispatcher('selectSubtitle', ix)}>
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<i className='icon'>{'radio_button_' + (isSelected ? 'checked' : 'unchecked')}</i>
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{track.label}
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</li>
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)
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})
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const noneSelected = state.playing.subtitles.selectedIndex === -1
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const noneClass = 'radio_button_' + (noneSelected ? 'checked' : 'unchecked')
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return (
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<ul key='subtitle-options' className='options-list'>
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{items}
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<li onClick={dispatcher('selectSubtitle', -1)}>
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<i className='icon'>{noneClass}</i>
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None
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</li>
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</ul>
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)
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}
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function renderPlayerControls (state) {
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const positionPercent = 100 * state.playing.currentTime / state.playing.duration
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const playbackCursorStyle = { left: 'calc(' + positionPercent + '% - 3px)' }
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const captionsClass = state.playing.subtitles.tracks.length === 0
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? 'disabled'
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: state.playing.subtitles.selectedIndex >= 0
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? 'active'
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: ''
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const prevClass = Playlist.hasPrevious(state) ? '' : 'disabled'
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const nextClass = Playlist.hasNext(state) ? '' : 'disabled'
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const elements = [
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<div key='playback-bar' className='playback-bar'>
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{renderLoadingBar(state)}
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<div
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key='cursor'
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className='playback-cursor'
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style={playbackCursorStyle} />
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<div
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key='scrub-bar'
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className='scrub-bar'
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draggable='true'
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onDragStart={handleDragStart}
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onClick={handleScrub}
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onDrag={handleScrub} />
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</div>,
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<i
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key='skip-previous'
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className={'icon skip-previous float-left ' + prevClass}
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onClick={dispatcher('previousTrack')}>
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skip_previous
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</i>,
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<i
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key='play'
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className='icon play-pause float-left'
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onClick={dispatcher('playPause')}>
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{state.playing.isPaused ? 'play_arrow' : 'pause'}
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</i>,
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<i
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key='skip-next'
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className={'icon skip-next float-left ' + nextClass}
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onClick={dispatcher('nextTrack')}>
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skip_next
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</i>,
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<i
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key='fullscreen'
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className='icon fullscreen float-right'
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onClick={dispatcher('toggleFullScreen')}>
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{state.window.isFullScreen ? 'fullscreen_exit' : 'fullscreen'}
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</i>
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]
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if (state.playing.type === 'video') {
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// Show closed captions icon
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elements.push((
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<i
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key='subtitles'
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className={'icon closed-caption float-right ' + captionsClass}
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onClick={handleSubtitles}>
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closed_caption
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</i>
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))
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}
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// If we've detected a Chromecast or AppleTV, the user can play video there
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const castTypes = ['chromecast', 'airplay', 'dlna']
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const isCastingAnywhere = castTypes.some(
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(castType) => state.playing.location.startsWith(castType))
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// Add the cast buttons. Icons for each cast type, connected/disconnected:
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const buttonIcons = {
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'chromecast': {true: 'cast_connected', false: 'cast'},
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'airplay': {true: 'airplay', false: 'airplay'},
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'dlna': {true: 'tv', false: 'tv'}
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}
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castTypes.forEach(function (castType) {
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// Do we show this button (eg. the Chromecast button) at all?
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const isCasting = state.playing.location.startsWith(castType)
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const player = state.devices[castType]
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if ((!player || player.getDevices().length === 0) && !isCasting) return
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// Show the button. Three options for eg the Chromecast button:
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let buttonClass, buttonHandler
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if (isCasting) {
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// Option 1: we are currently connected to Chromecast. Button stops the cast.
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buttonClass = 'active'
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buttonHandler = dispatcher('stopCasting')
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} else if (isCastingAnywhere) {
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// Option 2: we are currently connected somewhere else. Button disabled.
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buttonClass = 'disabled'
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buttonHandler = undefined
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} else {
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// Option 3: we are not connected anywhere. Button opens Chromecast menu.
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buttonClass = ''
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buttonHandler = dispatcher('toggleCastMenu', castType)
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}
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const buttonIcon = buttonIcons[castType][isCasting]
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elements.push((
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<i
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key={castType}
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className={'icon device float-right ' + buttonClass}
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onClick={buttonHandler}>
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{buttonIcon}
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</i>
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))
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})
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// Render volume slider
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const volume = state.playing.volume
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const volumeIcon = 'volume_' + (
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volume === 0 ? 'off'
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: volume < 0.3 ? 'mute'
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: volume < 0.6 ? 'down'
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: 'up')
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const volumeStyle = {
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background: '-webkit-gradient(linear, left top, right top, ' +
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'color-stop(' + (volume * 100) + '%, #eee), ' +
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'color-stop(' + (volume * 100) + '%, #727272))'
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}
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elements.push((
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<div key='volume' className='volume float-left'>
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<i
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className='icon volume-icon float-left'
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onMouseDown={handleVolumeMute}>
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{volumeIcon}
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</i>
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<input
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className='volume-slider float-right'
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type='range' min='0' max='1' step='0.05'
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value={volume}
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onChange={handleVolumeScrub}
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style={volumeStyle} />
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</div>
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))
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// Show video playback progress
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const currentTimeStr = formatTime(state.playing.currentTime)
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const durationStr = formatTime(state.playing.duration)
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elements.push((
|
|
<span key='time' className='time float-left'>
|
|
{currentTimeStr} / {durationStr}
|
|
</span>
|
|
))
|
|
|
|
// Render playback rate
|
|
if (state.playing.playbackRate !== 1) {
|
|
elements.push((
|
|
<span key='rate' className='rate float-left'>
|
|
{state.playing.playbackRate}x
|
|
</span>
|
|
))
|
|
}
|
|
|
|
return (
|
|
<div key='controls' className='controls'
|
|
onMouseEnter={dispatcher('mediaControlsMouseEnter')}
|
|
onMouseLeave={dispatcher('mediaControlsMouseLeave')}>
|
|
{elements}
|
|
{renderCastOptions(state)}
|
|
{renderSubtitleOptions(state)}
|
|
</div>
|
|
)
|
|
|
|
function handleDragStart (e) {
|
|
// Prevent the cursor from changing, eg to a green + icon on Mac
|
|
if (e.dataTransfer) {
|
|
const dt = e.dataTransfer
|
|
dt.effectAllowed = 'none'
|
|
}
|
|
}
|
|
|
|
// Handles a click or drag to scrub (jump to another position in the video)
|
|
function handleScrub (e) {
|
|
if (!e.clientX) return
|
|
dispatch('mediaMouseMoved')
|
|
const windowWidth = document.querySelector('body').clientWidth
|
|
const fraction = e.clientX / windowWidth
|
|
const position = fraction * state.playing.duration /* seconds */
|
|
dispatch('skipTo', position)
|
|
}
|
|
|
|
// Handles volume muting and Unmuting
|
|
function handleVolumeMute (e) {
|
|
if (state.playing.volume === 0.0) {
|
|
dispatch('setVolume', 1.0)
|
|
} else {
|
|
dispatch('setVolume', 0.0)
|
|
}
|
|
}
|
|
|
|
// Handles volume slider scrub
|
|
function handleVolumeScrub (e) {
|
|
dispatch('setVolume', e.target.value)
|
|
}
|
|
|
|
function handleSubtitles (e) {
|
|
if (!state.playing.subtitles.tracks.length || e.ctrlKey || e.metaKey) {
|
|
// if no subtitles available select it
|
|
dispatch('openSubtitles')
|
|
} else {
|
|
dispatch('toggleSubtitlesMenu')
|
|
}
|
|
}
|
|
}
|
|
|
|
// Renders the loading bar. Shows which parts of the torrent are loaded, which
|
|
// can be 'spongey' / non-contiguous
|
|
function renderLoadingBar (state) {
|
|
if (config.IS_TEST) return // Don't integration test the loading bar. Screenshots won't match.
|
|
|
|
const torrentSummary = state.getPlayingTorrentSummary()
|
|
if (!torrentSummary.progress) {
|
|
return []
|
|
}
|
|
|
|
// Find all contiguous parts of the torrent which are loaded
|
|
const prog = torrentSummary.progress
|
|
const fileProg = prog.files[state.playing.fileIndex]
|
|
const parts = []
|
|
let lastPiecePresent = false
|
|
for (let i = fileProg.startPiece; i <= fileProg.endPiece; i++) {
|
|
const partPresent = Bitfield.prototype.get.call(prog.bitfield, i)
|
|
if (partPresent && !lastPiecePresent) {
|
|
parts.push({start: i - fileProg.startPiece, count: 1})
|
|
} else if (partPresent) {
|
|
parts[parts.length - 1].count++
|
|
}
|
|
lastPiecePresent = partPresent
|
|
}
|
|
|
|
// Output some bars to show which parts of the file are loaded
|
|
const loadingBarElems = parts.map(function (part, i) {
|
|
const style = {
|
|
left: (100 * part.start / fileProg.numPieces) + '%',
|
|
width: (100 * part.count / fileProg.numPieces) + '%'
|
|
}
|
|
|
|
return (<div key={i} className='loading-bar-part' style={style} />)
|
|
})
|
|
return (<div key='loading-bar' className='loading-bar'>{loadingBarElems}</div>)
|
|
}
|
|
|
|
// Returns the CSS background-image string for a poster image + dark vignette
|
|
function cssBackgroundImagePoster (state) {
|
|
const torrentSummary = state.getPlayingTorrentSummary()
|
|
const posterPath = TorrentSummary.getPosterPath(torrentSummary)
|
|
if (!posterPath) return ''
|
|
return cssBackgroundImageDarkGradient() + `, url('${posterPath}')`
|
|
}
|
|
|
|
function cssBackgroundImageDarkGradient () {
|
|
return 'radial-gradient(circle at center, ' +
|
|
'rgba(0,0,0,0.4) 0%, rgba(0,0,0,1) 100%)'
|
|
}
|
|
|
|
function formatTime (time) {
|
|
if (typeof time !== 'number' || Number.isNaN(time)) {
|
|
return '0:00'
|
|
}
|
|
|
|
let hours = Math.floor(time / 3600)
|
|
let minutes = Math.floor(time % 3600 / 60)
|
|
if (hours > 0) {
|
|
minutes = zeroFill(2, minutes)
|
|
}
|
|
let seconds = zeroFill(2, Math.floor(time % 60))
|
|
|
|
return (hours > 0 ? hours + ':' : '') + minutes + ':' + seconds
|
|
}
|