chinwagsocial/app/javascript/mastodon/features/video/index.js

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import React from 'react';
import PropTypes from 'prop-types';
import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
import { fromJS, is } from 'immutable';
import { throttle } from 'lodash';
import classNames from 'classnames';
import { isFullscreen, requestFullscreen, exitFullscreen } from '../ui/util/fullscreen';
import { displayMedia, useBlurhash } from '../../initial_state';
import Icon from 'mastodon/components/icon';
import { decode } from 'blurhash';
const messages = defineMessages({
play: { id: 'video.play', defaultMessage: 'Play' },
pause: { id: 'video.pause', defaultMessage: 'Pause' },
mute: { id: 'video.mute', defaultMessage: 'Mute sound' },
unmute: { id: 'video.unmute', defaultMessage: 'Unmute sound' },
hide: { id: 'video.hide', defaultMessage: 'Hide video' },
expand: { id: 'video.expand', defaultMessage: 'Expand video' },
close: { id: 'video.close', defaultMessage: 'Close video' },
fullscreen: { id: 'video.fullscreen', defaultMessage: 'Full screen' },
exit_fullscreen: { id: 'video.exit_fullscreen', defaultMessage: 'Exit full screen' },
download: { id: 'video.download', defaultMessage: 'Download file' },
});
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export const formatTime = secondsNum => {
let hours = Math.floor(secondsNum / 3600);
let minutes = Math.floor((secondsNum - (hours * 3600)) / 60);
let seconds = secondsNum - (hours * 3600) - (minutes * 60);
if (hours < 10) hours = '0' + hours;
if (minutes < 10) minutes = '0' + minutes;
if (seconds < 10) seconds = '0' + seconds;
return (hours === '00' ? '' : `${hours}:`) + `${minutes}:${seconds}`;
};
export const findElementPosition = el => {
let box;
if (el.getBoundingClientRect && el.parentNode) {
box = el.getBoundingClientRect();
}
if (!box) {
return {
left: 0,
top: 0,
};
}
const docEl = document.documentElement;
const body = document.body;
const clientLeft = docEl.clientLeft || body.clientLeft || 0;
const scrollLeft = window.pageXOffset || body.scrollLeft;
const left = (box.left + scrollLeft) - clientLeft;
const clientTop = docEl.clientTop || body.clientTop || 0;
const scrollTop = window.pageYOffset || body.scrollTop;
const top = (box.top + scrollTop) - clientTop;
return {
left: Math.round(left),
top: Math.round(top),
};
};
export const getPointerPosition = (el, event) => {
const position = {};
const box = findElementPosition(el);
const boxW = el.offsetWidth;
const boxH = el.offsetHeight;
const boxY = box.top;
const boxX = box.left;
let pageY = event.pageY;
let pageX = event.pageX;
if (event.changedTouches) {
pageX = event.changedTouches[0].pageX;
pageY = event.changedTouches[0].pageY;
}
position.y = Math.max(0, Math.min(1, (pageY - boxY) / boxH));
position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
return position;
};
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export default @injectIntl
class Video extends React.PureComponent {
static propTypes = {
preview: PropTypes.string,
src: PropTypes.string.isRequired,
alt: PropTypes.string,
width: PropTypes.number,
height: PropTypes.number,
sensitive: PropTypes.bool,
startTime: PropTypes.number,
onOpenVideo: PropTypes.func,
onCloseVideo: PropTypes.func,
detailed: PropTypes.bool,
inline: PropTypes.bool,
editable: PropTypes.bool,
cacheWidth: PropTypes.func,
visible: PropTypes.bool,
onToggleVisibility: PropTypes.func,
intl: PropTypes.object.isRequired,
blurhash: PropTypes.string,
link: PropTypes.node,
};
state = {
currentTime: 0,
duration: 0,
volume: 0.5,
paused: true,
dragging: false,
containerWidth: this.props.width,
fullscreen: false,
hovered: false,
muted: false,
revealed: this.props.visible !== undefined ? this.props.visible : (displayMedia !== 'hide_all' && !this.props.sensitive || displayMedia === 'show_all'),
};
// Hard-coded in components.scss
// Any way to get ::before values programatically?
volWidth = 50;
volOffset = 70;
volHandleOffset = v => {
const offset = v * this.volWidth + this.volOffset;
return (offset > 110) ? 110 : offset;
}
setPlayerRef = c => {
this.player = c;
if (c) {
if (this.props.cacheWidth) this.props.cacheWidth(this.player.offsetWidth);
this.setState({
containerWidth: c.offsetWidth,
});
}
}
setVideoRef = c => {
this.video = c;
if (this.video) {
this.setState({ volume: this.video.volume, muted: this.video.muted });
}
}
setSeekRef = c => {
this.seek = c;
}
setVolumeRef = c => {
this.volume = c;
}
setCanvasRef = c => {
this.canvas = c;
}
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handleClickRoot = e => e.stopPropagation();
handlePlay = () => {
this.setState({ paused: false });
}
handlePause = () => {
this.setState({ paused: true });
}
handleTimeUpdate = () => {
this.setState({
currentTime: Math.floor(this.video.currentTime),
duration: Math.floor(this.video.duration),
});
}
handleVolumeMouseDown = e => {
document.addEventListener('mousemove', this.handleMouseVolSlide, true);
document.addEventListener('mouseup', this.handleVolumeMouseUp, true);
document.addEventListener('touchmove', this.handleMouseVolSlide, true);
document.addEventListener('touchend', this.handleVolumeMouseUp, true);
this.handleMouseVolSlide(e);
e.preventDefault();
e.stopPropagation();
}
handleVolumeMouseUp = () => {
document.removeEventListener('mousemove', this.handleMouseVolSlide, true);
document.removeEventListener('mouseup', this.handleVolumeMouseUp, true);
document.removeEventListener('touchmove', this.handleMouseVolSlide, true);
document.removeEventListener('touchend', this.handleVolumeMouseUp, true);
}
handleMouseVolSlide = throttle(e => {
const rect = this.volume.getBoundingClientRect();
const x = (e.clientX - rect.left) / this.volWidth; //x position within the element.
if(!isNaN(x)) {
let slideamt = x;
if(x > 1) {
slideamt = 1;
} else if(x < 0) {
slideamt = 0;
}
this.video.volume = slideamt;
this.setState({ volume: slideamt });
}
}, 60);
handleMouseDown = e => {
document.addEventListener('mousemove', this.handleMouseMove, true);
document.addEventListener('mouseup', this.handleMouseUp, true);
document.addEventListener('touchmove', this.handleMouseMove, true);
document.addEventListener('touchend', this.handleMouseUp, true);
this.setState({ dragging: true });
this.video.pause();
this.handleMouseMove(e);
e.preventDefault();
e.stopPropagation();
}
handleMouseUp = () => {
document.removeEventListener('mousemove', this.handleMouseMove, true);
document.removeEventListener('mouseup', this.handleMouseUp, true);
document.removeEventListener('touchmove', this.handleMouseMove, true);
document.removeEventListener('touchend', this.handleMouseUp, true);
this.setState({ dragging: false });
this.video.play();
}
handleMouseMove = throttle(e => {
const { x } = getPointerPosition(this.seek, e);
const currentTime = Math.floor(this.video.duration * x);
if (!isNaN(currentTime)) {
this.video.currentTime = currentTime;
this.setState({ currentTime });
}
}, 60);
togglePlay = () => {
if (this.state.paused) {
this.setState({ paused: false }, () => this.video.play());
} else {
this.setState({ paused: true }, () => this.video.pause());
}
}
toggleFullscreen = () => {
if (isFullscreen()) {
exitFullscreen();
} else {
requestFullscreen(this.player);
}
}
componentDidMount () {
document.addEventListener('fullscreenchange', this.handleFullscreenChange, true);
document.addEventListener('webkitfullscreenchange', this.handleFullscreenChange, true);
document.addEventListener('mozfullscreenchange', this.handleFullscreenChange, true);
document.addEventListener('MSFullscreenChange', this.handleFullscreenChange, true);
window.addEventListener('scroll', this.handleScroll);
if (this.props.blurhash) {
this._decode();
}
}
componentWillUnmount () {
window.removeEventListener('scroll', this.handleScroll);
document.removeEventListener('fullscreenchange', this.handleFullscreenChange, true);
document.removeEventListener('webkitfullscreenchange', this.handleFullscreenChange, true);
document.removeEventListener('mozfullscreenchange', this.handleFullscreenChange, true);
document.removeEventListener('MSFullscreenChange', this.handleFullscreenChange, true);
}
componentWillReceiveProps (nextProps) {
if (!is(nextProps.visible, this.props.visible) && nextProps.visible !== undefined) {
this.setState({ revealed: nextProps.visible });
}
}
componentDidUpdate (prevProps, prevState) {
if (prevState.revealed && !this.state.revealed && this.video) {
this.video.pause();
}
if (prevProps.blurhash !== this.props.blurhash && this.props.blurhash) {
this._decode();
}
}
_decode () {
if (!useBlurhash) return;
const hash = this.props.blurhash;
const pixels = decode(hash, 32, 32);
if (pixels) {
const ctx = this.canvas.getContext('2d');
const imageData = new ImageData(pixels, 32, 32);
ctx.putImageData(imageData, 0, 0);
}
}
handleScroll = throttle(() => {
if (!this.video) {
return;
}
const { top, height } = this.video.getBoundingClientRect();
const inView = (top <= (window.innerHeight || document.documentElement.clientHeight)) && (top + height >= 0);
if (!this.state.paused && !inView) {
this.setState({ paused: true }, () => this.video.pause());
}
}, 150, { trailing: true })
handleFullscreenChange = () => {
this.setState({ fullscreen: isFullscreen() });
}
handleMouseEnter = () => {
this.setState({ hovered: true });
}
handleMouseLeave = () => {
this.setState({ hovered: false });
}
toggleMute = () => {
const muted = !this.video.muted;
this.setState({ muted }, () => {
this.video.muted = muted;
});
}
toggleReveal = () => {
if (this.props.onToggleVisibility) {
this.props.onToggleVisibility();
} else {
this.setState({ revealed: !this.state.revealed });
}
}
handleLoadedData = () => {
if (this.props.startTime) {
this.video.currentTime = this.props.startTime;
this.video.play();
}
}
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handleProgress = () => {
if (this.video.buffered.length > 0) {
this.setState({ buffer: this.video.buffered.end(0) / this.video.duration * 100 });
}
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}
handleVolumeChange = () => {
this.setState({ volume: this.video.volume, muted: this.video.muted });
}
handleOpenVideo = () => {
const { src, preview, width, height, alt } = this.props;
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const media = fromJS({
type: 'video',
url: src,
preview_url: preview,
description: alt,
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width,
height,
});
this.video.pause();
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this.props.onOpenVideo(media, this.video.currentTime);
}
handleCloseVideo = () => {
this.video.pause();
this.props.onCloseVideo();
}
render () {
const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, detailed, sensitive, link, editable } = this.props;
const { containerWidth, currentTime, duration, volume, buffer, dragging, paused, fullscreen, hovered, muted, revealed } = this.state;
const progress = (currentTime / duration) * 100;
const volumeWidth = (muted) ? 0 : volume * this.volWidth;
const volumeHandleLoc = (muted) ? this.volHandleOffset(0) : this.volHandleOffset(volume);
const playerStyle = {};
let { width, height } = this.props;
if (inline && containerWidth) {
width = containerWidth;
height = containerWidth / (16/9);
playerStyle.height = height;
}
let preload;
if (startTime || fullscreen || dragging) {
preload = 'auto';
} else if (detailed) {
preload = 'metadata';
} else {
preload = 'none';
}
let warning;
if (sensitive) {
warning = <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' />;
} else {
warning = <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />;
}
return (
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<div
role='menuitem'
className={classNames('video-player', { inactive: !revealed, detailed, inline: inline && !fullscreen, fullscreen, editable })}
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style={playerStyle}
ref={this.setPlayerRef}
onMouseEnter={this.handleMouseEnter}
onMouseLeave={this.handleMouseLeave}
onClick={this.handleClickRoot}
tabIndex={0}
>
<canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': revealed })} />
{(revealed || editable) && <video
ref={this.setVideoRef}
src={src}
poster={preview}
preload={preload}
role='button'
tabIndex='0'
aria-label={alt}
title={alt}
width={width}
height={height}
volume={volume}
onClick={this.togglePlay}
onPlay={this.handlePlay}
onPause={this.handlePause}
onTimeUpdate={this.handleTimeUpdate}
onLoadedData={this.handleLoadedData}
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onProgress={this.handleProgress}
onVolumeChange={this.handleVolumeChange}
/>}
<div className={classNames('spoiler-button', { 'spoiler-button--hidden': revealed || editable })}>
<button type='button' className='spoiler-button__overlay' onClick={this.toggleReveal}>
<span className='spoiler-button__overlay__label'>{warning}</span>
</button>
</div>
<div className={classNames('video-player__controls', { active: paused || hovered })}>
<div className='video-player__seek' onMouseDown={this.handleMouseDown} ref={this.setSeekRef}>
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<div className='video-player__seek__buffer' style={{ width: `${buffer}%` }} />
<div className='video-player__seek__progress' style={{ width: `${progress}%` }} />
<span
className={classNames('video-player__seek__handle', { active: dragging })}
tabIndex='0'
style={{ left: `${progress}%` }}
/>
</div>
<div className='video-player__buttons-bar'>
<div className='video-player__buttons left'>
<button type='button' aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay} autoFocus={detailed}><Icon id={paused ? 'play' : 'pause'} fixedWidth /></button>
<button type='button' aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><Icon id={muted ? 'volume-off' : 'volume-up'} fixedWidth /></button>
<div className='video-player__volume' onMouseDown={this.handleVolumeMouseDown} ref={this.setVolumeRef}>
&nbsp;
<div className='video-player__volume__current' style={{ width: `${volumeWidth}px` }} />
<span
className={classNames('video-player__volume__handle')}
tabIndex='0'
style={{ left: `${volumeHandleLoc}px` }}
/>
</div>
{(detailed || fullscreen) && (
<span>
<span className='video-player__time-current'>{formatTime(currentTime)}</span>
<span className='video-player__time-sep'>/</span>
<span className='video-player__time-total'>{formatTime(duration)}</span>
</span>
)}
{link && <span className='video-player__link'>{link}</span>}
</div>
<div className='video-player__buttons right'>
{(!onCloseVideo && !editable && !fullscreen) && <button type='button' aria-label={intl.formatMessage(messages.hide)} onClick={this.toggleReveal}><Icon id='eye-slash' fixedWidth /></button>}
{(!fullscreen && onOpenVideo) && <button type='button' aria-label={intl.formatMessage(messages.expand)} onClick={this.handleOpenVideo}><Icon id='expand' fixedWidth /></button>}
{onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.close)} onClick={this.handleCloseVideo}><Icon id='compress' fixedWidth /></button>}
<button type='button' aria-label={intl.formatMessage(messages.download)}><a className='video-player__download__icon' href={this.props.src} download><Icon id={'download'} fixedWidth /></a></button>
<button type='button' aria-label={intl.formatMessage(fullscreen ? messages.exit_fullscreen : messages.fullscreen)} onClick={this.toggleFullscreen}><Icon id={fullscreen ? 'compress' : 'arrows-alt'} fixedWidth /></button>
</div>
</div>
</div>
</div>
);
}
}