mirror of
https://github.com/WordPress/WordPress.git
synced 2024-08-28 00:29:40 +02:00
With the `playsinline` attribute the video can also autoplay on mobile browsers without asking the user to open it up fullscreen. Also, change all video element properties to use boolean values. Props klevyke, ocean90. Fixes #50111. Built from https://develop.svn.wordpress.org/trunk@50698 git-svn-id: http://core.svn.wordpress.org/trunk@50307 1a063a9b-81f0-0310-95a4-ce76da25c4cd
467 lines
10 KiB
JavaScript
467 lines
10 KiB
JavaScript
/**
|
|
* @output wp-includes/js/wp-custom-header.js
|
|
*/
|
|
|
|
/* global YT */
|
|
(function( window, settings ) {
|
|
|
|
var NativeHandler, YouTubeHandler;
|
|
|
|
/** @namespace wp */
|
|
window.wp = window.wp || {};
|
|
|
|
// Fail gracefully in unsupported browsers.
|
|
if ( ! ( 'addEventListener' in window ) ) {
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Trigger an event.
|
|
*
|
|
* @param {Element} target HTML element to dispatch the event on.
|
|
* @param {string} name Event name.
|
|
*/
|
|
function trigger( target, name ) {
|
|
var evt;
|
|
|
|
if ( 'function' === typeof window.Event ) {
|
|
evt = new Event( name );
|
|
} else {
|
|
evt = document.createEvent( 'Event' );
|
|
evt.initEvent( name, true, true );
|
|
}
|
|
|
|
target.dispatchEvent( evt );
|
|
}
|
|
|
|
/**
|
|
* Create a custom header instance.
|
|
*
|
|
* @memberOf wp
|
|
*
|
|
* @class
|
|
*/
|
|
function CustomHeader() {
|
|
this.handlers = {
|
|
nativeVideo: new NativeHandler(),
|
|
youtube: new YouTubeHandler()
|
|
};
|
|
}
|
|
|
|
CustomHeader.prototype = {
|
|
/**
|
|
* Initialize the custom header.
|
|
*
|
|
* If the environment supports video, loops through registered handlers
|
|
* until one is found that can handle the video.
|
|
*/
|
|
initialize: function() {
|
|
if ( this.supportsVideo() ) {
|
|
for ( var id in this.handlers ) {
|
|
var handler = this.handlers[ id ];
|
|
|
|
if ( 'test' in handler && handler.test( settings ) ) {
|
|
this.activeHandler = handler.initialize.call( handler, settings );
|
|
|
|
// Dispatch custom event when the video is loaded.
|
|
trigger( document, 'wp-custom-header-video-loaded' );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Determines if the current environment supports video.
|
|
*
|
|
* Themes and plugins can override this method to change the criteria.
|
|
*
|
|
* @return {boolean}
|
|
*/
|
|
supportsVideo: function() {
|
|
// Don't load video on small screens. @todo Consider bandwidth and other factors.
|
|
if ( window.innerWidth < settings.minWidth || window.innerHeight < settings.minHeight ) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Base handler for custom handlers to extend.
|
|
*
|
|
* @type {BaseHandler}
|
|
*/
|
|
BaseVideoHandler: BaseHandler
|
|
};
|
|
|
|
/**
|
|
* Create a video handler instance.
|
|
*
|
|
* @memberOf wp
|
|
*
|
|
* @class
|
|
*/
|
|
function BaseHandler() {}
|
|
|
|
BaseHandler.prototype = {
|
|
/**
|
|
* Initialize the video handler.
|
|
*
|
|
* @param {Object} settings Video settings.
|
|
*/
|
|
initialize: function( settings ) {
|
|
var handler = this,
|
|
button = document.createElement( 'button' );
|
|
|
|
this.settings = settings;
|
|
this.container = document.getElementById( 'wp-custom-header' );
|
|
this.button = button;
|
|
|
|
button.setAttribute( 'type', 'button' );
|
|
button.setAttribute( 'id', 'wp-custom-header-video-button' );
|
|
button.setAttribute( 'class', 'wp-custom-header-video-button wp-custom-header-video-play' );
|
|
button.innerHTML = settings.l10n.play;
|
|
|
|
// Toggle video playback when the button is clicked.
|
|
button.addEventListener( 'click', function() {
|
|
if ( handler.isPaused() ) {
|
|
handler.play();
|
|
} else {
|
|
handler.pause();
|
|
}
|
|
});
|
|
|
|
// Update the button class and text when the video state changes.
|
|
this.container.addEventListener( 'play', function() {
|
|
button.className = 'wp-custom-header-video-button wp-custom-header-video-play';
|
|
button.innerHTML = settings.l10n.pause;
|
|
if ( 'a11y' in window.wp ) {
|
|
window.wp.a11y.speak( settings.l10n.playSpeak);
|
|
}
|
|
});
|
|
|
|
this.container.addEventListener( 'pause', function() {
|
|
button.className = 'wp-custom-header-video-button wp-custom-header-video-pause';
|
|
button.innerHTML = settings.l10n.play;
|
|
if ( 'a11y' in window.wp ) {
|
|
window.wp.a11y.speak( settings.l10n.pauseSpeak);
|
|
}
|
|
});
|
|
|
|
this.ready();
|
|
},
|
|
|
|
/**
|
|
* Ready method called after a handler is initialized.
|
|
*
|
|
* @abstract
|
|
*/
|
|
ready: function() {},
|
|
|
|
/**
|
|
* Whether the video is paused.
|
|
*
|
|
* @abstract
|
|
* @return {boolean}
|
|
*/
|
|
isPaused: function() {},
|
|
|
|
/**
|
|
* Pause the video.
|
|
*
|
|
* @abstract
|
|
*/
|
|
pause: function() {},
|
|
|
|
/**
|
|
* Play the video.
|
|
*
|
|
* @abstract
|
|
*/
|
|
play: function() {},
|
|
|
|
/**
|
|
* Append a video node to the header container.
|
|
*
|
|
* @param {Element} node HTML element.
|
|
*/
|
|
setVideo: function( node ) {
|
|
var editShortcutNode,
|
|
editShortcut = this.container.getElementsByClassName( 'customize-partial-edit-shortcut' );
|
|
|
|
if ( editShortcut.length ) {
|
|
editShortcutNode = this.container.removeChild( editShortcut[0] );
|
|
}
|
|
|
|
this.container.innerHTML = '';
|
|
this.container.appendChild( node );
|
|
|
|
if ( editShortcutNode ) {
|
|
this.container.appendChild( editShortcutNode );
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Show the video controls.
|
|
*
|
|
* Appends a play/pause button to header container.
|
|
*/
|
|
showControls: function() {
|
|
if ( ! this.container.contains( this.button ) ) {
|
|
this.container.appendChild( this.button );
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Whether the handler can process a video.
|
|
*
|
|
* @abstract
|
|
* @param {Object} settings Video settings.
|
|
* @return {boolean}
|
|
*/
|
|
test: function() {
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Trigger an event on the header container.
|
|
*
|
|
* @param {string} name Event name.
|
|
*/
|
|
trigger: function( name ) {
|
|
trigger( this.container, name );
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Create a custom handler.
|
|
*
|
|
* @memberOf wp
|
|
*
|
|
* @param {Object} protoProps Properties to apply to the prototype.
|
|
* @return CustomHandler The subclass.
|
|
*/
|
|
BaseHandler.extend = function( protoProps ) {
|
|
var prop;
|
|
|
|
function CustomHandler() {
|
|
var result = BaseHandler.apply( this, arguments );
|
|
return result;
|
|
}
|
|
|
|
CustomHandler.prototype = Object.create( BaseHandler.prototype );
|
|
CustomHandler.prototype.constructor = CustomHandler;
|
|
|
|
for ( prop in protoProps ) {
|
|
CustomHandler.prototype[ prop ] = protoProps[ prop ];
|
|
}
|
|
|
|
return CustomHandler;
|
|
};
|
|
|
|
/**
|
|
* Native video handler.
|
|
*
|
|
* @memberOf wp
|
|
*
|
|
* @class
|
|
*/
|
|
NativeHandler = BaseHandler.extend(/** @lends wp.NativeHandler.prototype */{
|
|
/**
|
|
* Whether the native handler supports a video.
|
|
*
|
|
* @param {Object} settings Video settings.
|
|
* @return {boolean}
|
|
*/
|
|
test: function( settings ) {
|
|
var video = document.createElement( 'video' );
|
|
return video.canPlayType( settings.mimeType );
|
|
},
|
|
|
|
/**
|
|
* Set up a native video element.
|
|
*/
|
|
ready: function() {
|
|
var handler = this,
|
|
video = document.createElement( 'video' );
|
|
|
|
video.id = 'wp-custom-header-video';
|
|
video.autoplay = true;
|
|
video.loop = true;
|
|
video.muted = true;
|
|
video.playsInline = true;
|
|
video.width = this.settings.width;
|
|
video.height = this.settings.height;
|
|
|
|
video.addEventListener( 'play', function() {
|
|
handler.trigger( 'play' );
|
|
});
|
|
|
|
video.addEventListener( 'pause', function() {
|
|
handler.trigger( 'pause' );
|
|
});
|
|
|
|
video.addEventListener( 'canplay', function() {
|
|
handler.showControls();
|
|
});
|
|
|
|
this.video = video;
|
|
handler.setVideo( video );
|
|
video.src = this.settings.videoUrl;
|
|
},
|
|
|
|
/**
|
|
* Whether the video is paused.
|
|
*
|
|
* @return {boolean}
|
|
*/
|
|
isPaused: function() {
|
|
return this.video.paused;
|
|
},
|
|
|
|
/**
|
|
* Pause the video.
|
|
*/
|
|
pause: function() {
|
|
this.video.pause();
|
|
},
|
|
|
|
/**
|
|
* Play the video.
|
|
*/
|
|
play: function() {
|
|
this.video.play();
|
|
}
|
|
});
|
|
|
|
/**
|
|
* YouTube video handler.
|
|
*
|
|
* @memberOf wp
|
|
*
|
|
* @class wp.YouTubeHandler
|
|
*/
|
|
YouTubeHandler = BaseHandler.extend(/** @lends wp.YouTubeHandler.prototype */{
|
|
/**
|
|
* Whether the handler supports a video.
|
|
*
|
|
* @param {Object} settings Video settings.
|
|
* @return {boolean}
|
|
*/
|
|
test: function( settings ) {
|
|
return 'video/x-youtube' === settings.mimeType;
|
|
},
|
|
|
|
/**
|
|
* Set up a YouTube iframe.
|
|
*
|
|
* Loads the YouTube IFrame API if the 'YT' global doesn't exist.
|
|
*/
|
|
ready: function() {
|
|
var handler = this;
|
|
|
|
if ( 'YT' in window ) {
|
|
YT.ready( handler.loadVideo.bind( handler ) );
|
|
} else {
|
|
var tag = document.createElement( 'script' );
|
|
tag.src = 'https://www.youtube.com/iframe_api';
|
|
tag.onload = function () {
|
|
YT.ready( handler.loadVideo.bind( handler ) );
|
|
};
|
|
|
|
document.getElementsByTagName( 'head' )[0].appendChild( tag );
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Load a YouTube video.
|
|
*/
|
|
loadVideo: function() {
|
|
var handler = this,
|
|
video = document.createElement( 'div' ),
|
|
// @link http://stackoverflow.com/a/27728417
|
|
VIDEO_ID_REGEX = /^.*(?:(?:youtu\.be\/|v\/|vi\/|u\/\w\/|embed\/)|(?:(?:watch)?\?v(?:i)?=|\&v(?:i)?=))([^#\&\?]*).*/;
|
|
|
|
video.id = 'wp-custom-header-video';
|
|
handler.setVideo( video );
|
|
|
|
handler.player = new YT.Player( video, {
|
|
height: this.settings.height,
|
|
width: this.settings.width,
|
|
videoId: this.settings.videoUrl.match( VIDEO_ID_REGEX )[1],
|
|
events: {
|
|
onReady: function( e ) {
|
|
e.target.mute();
|
|
handler.showControls();
|
|
},
|
|
onStateChange: function( e ) {
|
|
if ( YT.PlayerState.PLAYING === e.data ) {
|
|
handler.trigger( 'play' );
|
|
} else if ( YT.PlayerState.PAUSED === e.data ) {
|
|
handler.trigger( 'pause' );
|
|
} else if ( YT.PlayerState.ENDED === e.data ) {
|
|
e.target.playVideo();
|
|
}
|
|
}
|
|
},
|
|
playerVars: {
|
|
autoplay: 1,
|
|
controls: 0,
|
|
disablekb: 1,
|
|
fs: 0,
|
|
iv_load_policy: 3,
|
|
loop: 1,
|
|
modestbranding: 1,
|
|
playsinline: 1,
|
|
rel: 0,
|
|
showinfo: 0
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Whether the video is paused.
|
|
*
|
|
* @return {boolean}
|
|
*/
|
|
isPaused: function() {
|
|
return YT.PlayerState.PAUSED === this.player.getPlayerState();
|
|
},
|
|
|
|
/**
|
|
* Pause the video.
|
|
*/
|
|
pause: function() {
|
|
this.player.pauseVideo();
|
|
},
|
|
|
|
/**
|
|
* Play the video.
|
|
*/
|
|
play: function() {
|
|
this.player.playVideo();
|
|
}
|
|
});
|
|
|
|
// Initialize the custom header when the DOM is ready.
|
|
window.wp.customHeader = new CustomHeader();
|
|
document.addEventListener( 'DOMContentLoaded', window.wp.customHeader.initialize.bind( window.wp.customHeader ), false );
|
|
|
|
// Selective refresh support in the Customizer.
|
|
if ( 'customize' in window.wp ) {
|
|
window.wp.customize.selectiveRefresh.bind( 'render-partials-response', function( response ) {
|
|
if ( 'custom_header_settings' in response ) {
|
|
settings = response.custom_header_settings;
|
|
}
|
|
});
|
|
|
|
window.wp.customize.selectiveRefresh.bind( 'partial-content-rendered', function( placement ) {
|
|
if ( 'custom_header' === placement.partial.id ) {
|
|
window.wp.customHeader.initialize();
|
|
}
|
|
});
|
|
}
|
|
|
|
})( window, window._wpCustomHeaderSettings || {} );
|