WordPress/wp-includes/js/mce-view.js
Andrew Ozz 93170e58fa TinyMCE wpView:
- Add loadingPlaceholder() that returns some html to use as placeholder while the view is loading. Includes a subtle CSS based loading animation.
- Fix setContent(), it should empty the element before appending the new node.
- Change getHtml() to always return a string.
Fixes #28761.
Built from https://develop.svn.wordpress.org/trunk@29019


git-svn-id: http://core.svn.wordpress.org/trunk@28807 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2014-07-07 22:41:15 +00:00

890 lines
22 KiB
JavaScript

/* global tinymce, MediaElementPlayer, WPPlaylistView */
/**
* Note: this API is "experimental" meaning that it will probably change
* in the next few releases based on feedback from 3.9.0.
* If you decide to use it, please follow the development closely.
*/
// Ensure the global `wp` object exists.
window.wp = window.wp || {};
( function( $ ) {
'use strict';
var views = {},
instances = {},
media = wp.media,
viewOptions = ['encodedText'];
// Create the `wp.mce` object if necessary.
wp.mce = wp.mce || {};
/**
* wp.mce.View
*
* A Backbone-like View constructor intended for use when rendering a TinyMCE View. The main difference is
* that the TinyMCE View is not tied to a particular DOM node.
*
* @param {Object} [options={}]
*/
wp.mce.View = function( options ) {
options = options || {};
this.type = options.type;
_.extend( this, _.pick( options, viewOptions ) );
this.initialize.apply( this, arguments );
};
_.extend( wp.mce.View.prototype, {
initialize: function() {},
getHtml: function() {
return '';
},
loadingPlaceholder: function() {
return '' +
'<div class="loading-placeholder">' +
'<div class="dashicons dashicons-admin-media"></div>' +
'<div class="wpview-loading"><ins></ins></div>' +
'</div>';
},
render: function() {
var html = this.getHtml() || this.loadingPlaceholder();
this.setContent(
'<p class="wpview-selection-before">\u00a0</p>' +
'<div class="wpview-body" contenteditable="false">' +
'<div class="toolbar">' +
( _.isFunction( views[ this.type ].edit ) ? '<div class="dashicons dashicons-edit edit"></div>' : '' ) +
'<div class="dashicons dashicons-no-alt remove"></div>' +
'</div>' +
'<div class="wpview-content wpview-type-' + this.type + '">' +
html +
'</div>' +
( this.overlay ? '<div class="wpview-overlay"></div>' : '' ) +
'</div>' +
'<p class="wpview-selection-after">\u00a0</p>',
function( self, editor, node ) {
$( self ).trigger( 'ready', [ editor, node ] );
},
'wrap'
);
},
unbind: function() {},
setContent: function( html, callback, option ) {
_.each( tinymce.editors, function( editor ) {
var self = this;
if ( editor.plugins.wpview ) {
$( editor.getBody() )
.find( '[data-wpview-text="' + this.encodedText + '"]' )
.each( function ( i, element ) {
var contentWrap = $( element ).find( '.wpview-content' ),
wrap = element;
if ( contentWrap.length && option !== 'wrap' ) {
element = contentWrap = contentWrap[0];
}
if ( _.isString( html ) ) {
if ( option === 'replace' ) {
element = editor.dom.replace( editor.dom.createFragment( html ), wrap );
} else {
editor.dom.setHTML( element, html );
}
} else {
if ( option === 'replace' ) {
element = editor.dom.replace( html, wrap );
} else {
$( element ).empty().append( html );
}
}
if ( _.isFunction( callback ) ) {
callback( self, editor, $( element ).find( '.wpview-content' )[0] );
}
} );
}
}, this );
},
setError: function( message, dashicon ) {
this.setContent(
'<div class="wpview-error">' +
'<div class="dashicons dashicons-' + ( dashicon ? dashicon : 'no' ) + '"></div>' +
'<p>' + message + '</p>' +
'</div>'
);
}
} );
// take advantage of the Backbone extend method
wp.mce.View.extend = Backbone.View.extend;
/**
* wp.mce.views
*
* A set of utilities that simplifies adding custom UI within a TinyMCE editor.
* At its core, it serves as a series of converters, transforming text to a
* custom UI, and back again.
*/
wp.mce.views = {
/**
* wp.mce.views.register( type, view )
*
* Registers a new TinyMCE view.
*
* @param type
* @param constructor
*
*/
register: function( type, constructor ) {
var defaultConstructor = {
type: type,
View: {},
toView: function( content ) {
var match = wp.shortcode.next( this.type, content );
if ( ! match ) {
return;
}
return {
index: match.index,
content: match.content,
options: {
shortcode: match.shortcode
}
};
}
};
constructor = _.defaults( constructor, defaultConstructor );
constructor.View = wp.mce.View.extend( constructor.View );
views[ type ] = constructor;
},
/**
* wp.mce.views.get( id )
*
* Returns a TinyMCE view constructor.
*
* @param type
*/
get: function( type ) {
return views[ type ];
},
/**
* wp.mce.views.unregister( type )
*
* Unregisters a TinyMCE view.
*
* @param type
*/
unregister: function( type ) {
delete views[ type ];
},
/**
* wp.mce.views.unbind( editor )
*
* The editor DOM is being rebuilt, run cleanup.
*/
unbind: function() {
_.each( instances, function( instance ) {
instance.unbind();
} );
},
/**
* toViews( content )
* Scans a `content` string for each view's pattern, replacing any
* matches with wrapper elements, and creates a new instance for
* every match, which triggers the related data to be fetched.
*
* @param content
*/
toViews: function( content ) {
var pieces = [ { content: content } ],
current;
_.each( views, function( view, viewType ) {
current = pieces.slice();
pieces = [];
_.each( current, function( piece ) {
var remaining = piece.content,
result;
// Ignore processed pieces, but retain their location.
if ( piece.processed ) {
pieces.push( piece );
return;
}
// Iterate through the string progressively matching views
// and slicing the string as we go.
while ( remaining && (result = view.toView( remaining )) ) {
// Any text before the match becomes an unprocessed piece.
if ( result.index ) {
pieces.push({ content: remaining.substring( 0, result.index ) });
}
// Add the processed piece for the match.
pieces.push({
content: wp.mce.views.toView( viewType, result.content, result.options ),
processed: true
});
// Update the remaining content.
remaining = remaining.slice( result.index + result.content.length );
}
// There are no additional matches. If any content remains,
// add it as an unprocessed piece.
if ( remaining ) {
pieces.push({ content: remaining });
}
});
});
return _.pluck( pieces, 'content' ).join('');
},
/**
* Create a placeholder for a particular view type
*
* @param viewType
* @param text
* @param options
*
*/
toView: function( viewType, text, options ) {
var view = wp.mce.views.get( viewType ),
encodedText = window.encodeURIComponent( text ),
instance, viewOptions;
if ( ! view ) {
return text;
}
if ( ! wp.mce.views.getInstance( encodedText ) ) {
viewOptions = options;
viewOptions.type = viewType;
viewOptions.encodedText = encodedText;
instance = new view.View( viewOptions );
instances[ encodedText ] = instance;
}
return wp.html.string({
tag: 'div',
attrs: {
'class': 'wpview-wrap',
'data-wpview-text': encodedText,
'data-wpview-type': viewType
},
content: '\u00a0'
});
},
/**
* Refresh views after an update is made
*
* @param view {object} being refreshed
* @param text {string} textual representation of the view
*/
refreshView: function( view, text ) {
var encodedText = window.encodeURIComponent( text ),
viewOptions,
result, instance;
instance = wp.mce.views.getInstance( encodedText );
if ( ! instance ) {
result = view.toView( text );
viewOptions = result.options;
viewOptions.type = view.type;
viewOptions.encodedText = encodedText;
instance = new view.View( viewOptions );
instances[ encodedText ] = instance;
}
wp.mce.views.render();
},
getInstance: function( encodedText ) {
return instances[ encodedText ];
},
/**
* render( scope )
*
* Renders any view instances inside a DOM node `scope`.
*
* View instances are detected by the presence of wrapper elements.
* To generate wrapper elements, pass your content through
* `wp.mce.view.toViews( content )`.
*/
render: function() {
_.each( instances, function( instance ) {
instance.render();
} );
},
edit: function( node ) {
var viewType = $( node ).data('wpview-type'),
view = wp.mce.views.get( viewType );
if ( view ) {
view.edit( node );
}
}
};
wp.mce.views.register( 'gallery', {
View: {
template: media.template( 'editor-gallery' ),
// The fallback post ID to use as a parent for galleries that don't
// specify the `ids` or `include` parameters.
//
// Uses the hidden input on the edit posts page by default.
postID: $('#post_ID').val(),
initialize: function( options ) {
this.shortcode = options.shortcode;
this.fetch();
},
fetch: function() {
this.attachments = wp.media.gallery.attachments( this.shortcode, this.postID );
this.dfd = this.attachments.more().done( _.bind( this.render, this ) );
},
getHtml: function() {
var attrs = this.shortcode.attrs.named,
attachments = false,
options;
// Don't render errors while still fetching attachments
if ( this.dfd && 'pending' === this.dfd.state() && ! this.attachments.length ) {
return '';
}
if ( this.attachments.length ) {
attachments = this.attachments.toJSON();
_.each( attachments, function( attachment ) {
if ( attachment.sizes ) {
if ( attachment.sizes.thumbnail ) {
attachment.thumbnail = attachment.sizes.thumbnail;
} else if ( attachment.sizes.full ) {
attachment.thumbnail = attachment.sizes.full;
}
}
} );
}
options = {
attachments: attachments,
columns: attrs.columns ? parseInt( attrs.columns, 10 ) : wp.media.galleryDefaults.columns
};
return this.template( options );
}
},
edit: function( node ) {
var gallery = wp.media.gallery,
self = this,
frame, data;
data = window.decodeURIComponent( $( node ).attr('data-wpview-text') );
frame = gallery.edit( data );
frame.state('gallery-edit').on( 'update', function( selection ) {
var shortcode = gallery.shortcode( selection ).string();
$( node ).attr( 'data-wpview-text', window.encodeURIComponent( shortcode ) );
wp.mce.views.refreshView( self, shortcode );
frame.detach();
});
}
} );
/**
* These are base methods that are shared by the audio and video shortcode's MCE controller.
*
* @mixin
*/
wp.mce.av = {
loaded: false,
View: _.extend( {}, wp.media.mixin, {
overlay: true,
initialize: function( options ) {
this.players = [];
this.shortcode = options.shortcode;
_.bindAll( this, 'setPlayer', 'pausePlayers' );
$( this ).on( 'ready', this.setPlayer );
$( this ).on( 'ready', function( event, editor ) {
editor.on( 'hide', this.pausePlayers );
} );
$( document ).on( 'media:edit', this.pausePlayers );
},
/**
* Creates the player instance for the current node
*
* @global MediaElementPlayer
*
* @param {Event} event
* @param {Object} editor
* @param {HTMLElement} node
*/
setPlayer: function( event, editor, node ) {
var self = this,
media;
media = $( node ).find( '.wp-' + this.shortcode.tag + '-shortcode' );
if ( ! this.isCompatible( media ) ) {
media.closest( '.wpview-wrap' ).addClass( 'wont-play' );
media.replaceWith( '<p>' + media.find( 'source' ).eq(0).prop( 'src' ) + '</p>' );
return;
} else {
media.closest( '.wpview-wrap' ).removeClass( 'wont-play' );
if ( this.ua.is( 'ff' ) ) {
media.prop( 'preload', 'metadata' );
} else {
media.prop( 'preload', 'none' );
}
}
media = wp.media.view.MediaDetails.prepareSrc( media.get(0) );
setTimeout( function() {
wp.mce.av.loaded = true;
self.players.push( new MediaElementPlayer( media, self.mejsSettings ) );
}, wp.mce.av.loaded ? 10 : 500 );
},
/**
* Pass data to the View's Underscore template and return the compiled output
*
* @returns {string}
*/
getHtml: function() {
var attrs = this.shortcode.attrs.named;
attrs.content = this.shortcode.content;
return this.template({ model: _.defaults(
attrs,
wp.media[ this.shortcode.tag ].defaults )
});
},
unbind: function() {
this.unsetPlayers();
}
} ),
/**
* Called when a TinyMCE view is clicked for editing.
* - Parses the shortcode out of the element's data attribute
* - Calls the `edit` method on the shortcode model
* - Launches the model window
* - Bind's an `update` callback which updates the element's data attribute
* re-renders the view
*
* @param {HTMLElement} node
*/
edit: function( node ) {
var media = wp.media[ this.type ],
self = this,
frame, data, callback;
$( document ).trigger( 'media:edit' );
data = window.decodeURIComponent( $( node ).attr('data-wpview-text') );
frame = media.edit( data );
frame.on( 'close', function() {
frame.detach();
} );
callback = function( selection ) {
var shortcode = wp.media[ self.type ].shortcode( selection ).string();
$( node ).attr( 'data-wpview-text', window.encodeURIComponent( shortcode ) );
wp.mce.views.refreshView( self, shortcode );
frame.detach();
};
if ( _.isArray( self.state ) ) {
_.each( self.state, function (state) {
frame.state( state ).on( 'update', callback );
} );
} else {
frame.state( self.state ).on( 'update', callback );
}
frame.open();
}
};
/**
* TinyMCE handler for the video shortcode
*
* @mixes wp.mce.av
*/
wp.mce.views.register( 'video', _.extend( {}, wp.mce.av, {
state: 'video-details',
View: _.extend( {}, wp.mce.av.View, {
template: media.template( 'editor-video' )
} )
} ) );
/**
* TinyMCE handler for the audio shortcode
*
* @mixes wp.mce.av
*/
wp.mce.views.register( 'audio', _.extend( {}, wp.mce.av, {
state: 'audio-details',
View: _.extend( {}, wp.mce.av.View, {
template: media.template( 'editor-audio' )
} )
} ) );
/**
* TinyMCE handler for the playlist shortcode
*
* @mixes wp.mce.av
*/
wp.mce.views.register( 'playlist', _.extend( {}, wp.mce.av, {
state: ['playlist-edit', 'video-playlist-edit'],
View: _.extend( {}, wp.media.mixin, {
template: media.template( 'editor-playlist' ),
overlay: true,
initialize: function( options ) {
this.players = [];
this.data = {};
this.attachments = [];
this.shortcode = options.shortcode;
$( this ).on( 'ready', function( event, editor ) {
editor.on( 'hide', this.pausePlayers );
} );
$( document ).on( 'media:edit', this.pausePlayers );
this.fetch();
$( this ).on( 'ready', this.setPlaylist );
},
/**
* Asynchronously fetch the shortcode's attachments
*/
fetch: function() {
this.attachments = wp.media.playlist.attachments( this.shortcode );
this.dfd = this.attachments.more().done( _.bind( this.render, this ) );
},
setPlaylist: function( event, editor, element ) {
if ( ! this.data.tracks ) {
return;
}
this.players.push( new WPPlaylistView( {
el: $( element ).find( '.wp-playlist' ).get( 0 ),
metadata: this.data
} ).player );
},
/**
* Set the data that will be used to compile the Underscore template,
* compile the template, and then return it.
*
* @returns {string}
*/
getHtml: function() {
var data = this.shortcode.attrs.named,
model = wp.media.playlist,
options,
attachments,
tracks = [];
// Don't render errors while still fetching attachments
if ( this.dfd && 'pending' === this.dfd.state() && ! this.attachments.length ) {
return '';
}
_.each( model.defaults, function( value, key ) {
data[ key ] = model.coerce( data, key );
});
options = {
type: data.type,
style: data.style,
tracklist: data.tracklist,
tracknumbers: data.tracknumbers,
images: data.images,
artists: data.artists
};
if ( ! this.attachments.length ) {
return this.template( options );
}
attachments = this.attachments.toJSON();
_.each( attachments, function( attachment ) {
var size = {}, resize = {}, track = {
src : attachment.url,
type : attachment.mime,
title : attachment.title,
caption : attachment.caption,
description : attachment.description,
meta : attachment.meta
};
if ( 'video' === data.type ) {
size.width = attachment.width;
size.height = attachment.height;
if ( media.view.settings.contentWidth ) {
resize.width = media.view.settings.contentWidth - 22;
resize.height = Math.ceil( ( size.height * resize.width ) / size.width );
if ( ! options.width ) {
options.width = resize.width;
options.height = resize.height;
}
} else {
if ( ! options.width ) {
options.width = attachment.width;
options.height = attachment.height;
}
}
track.dimensions = {
original : size,
resized : _.isEmpty( resize ) ? size : resize
};
} else {
options.width = 400;
}
track.image = attachment.image;
track.thumb = attachment.thumb;
tracks.push( track );
} );
options.tracks = tracks;
this.data = options;
return this.template( options );
},
unbind: function() {
this.unsetPlayers();
}
} )
} ) );
/**
* TinyMCE handler for the embed shortcode
*/
wp.mce.embedView = _.extend( {}, wp.media.mixin, {
overlay: true,
initialize: function( options ) {
this.players = [];
this.content = options.content;
this.fetching = false;
this.parsed = false;
this.original = options.url || options.shortcode.string();
if ( options.url ) {
this.shortcode = '[embed]' + options.url + '[/embed]';
} else {
this.shortcode = options.shortcode.string();
}
_.bindAll( this, 'setHtml', 'setNode', 'fetch' );
$( this ).on( 'ready', this.setNode );
},
unbind: function() {
var self = this;
_.each( this.players, function ( player ) {
player.pause();
self.removePlayer( player );
} );
this.players = [];
},
setNode: function () {
if ( this.parsed ) {
this.setHtml( this.parsed );
this.parseMediaShortcodes();
} else if ( ! this.fetching ) {
this.fetch();
}
},
fetch: function () {
var self = this;
this.fetching = true;
wp.ajax.send( 'parse-embed', {
data: {
post_ID: $( '#post_ID' ).val() || 0,
shortcode: this.shortcode
}
} )
.always( function() {
self.fetching = false;
} )
.done( function( response ) {
if ( response ) {
self.parsed = response;
self.setHtml( response );
}
} )
.fail( function( response ) {
if ( response && response.message ) {
if ( ( response.type === 'not-embeddable' && self.type === 'embed' ) ||
response.type === 'not-ssl' ) {
self.setError( response.message, 'admin-media' );
} else {
self.setContent( '<p>' + self.original + '</p>', null, 'replace' );
}
} else if ( response && response.statusText ) {
self.setError( response.statusText, 'admin-media' );
}
} );
},
/* jshint scripturl: true */
setHtml: function ( content ) {
var MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver,
iframe, iframeDoc, i, resize,
dom = tinymce.DOM;
if ( content.indexOf( '<script' ) !== -1 ) {
iframe = dom.create( 'iframe', {
src: tinymce.Env.ie ? 'javascript:""' : '',
frameBorder: '0',
allowTransparency: 'true',
style: {
width: '100%',
display: 'block'
}
} );
this.setContent( iframe );
iframeDoc = iframe.contentWindow.document;
iframeDoc.open();
iframeDoc.write(
'<!DOCTYPE html>' +
'<html>' +
'<head>' +
'<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />' +
'</head>' +
'<body>' +
content +
'</body>' +
'</html>'
);
iframeDoc.close();
resize = function() {
$( iframe ).height( $( iframeDoc ).height() );
};
if ( MutationObserver ) {
new MutationObserver( _.debounce( function() {
resize();
}, 100 ) )
.observe( iframeDoc.body, {
attributes: true,
childList: true,
subtree: true
} );
} else {
for ( i = 1; i < 6; i++ ) {
setTimeout( resize, i * 700 );
}
}
} else {
this.setContent( content );
}
this.parseMediaShortcodes();
},
parseMediaShortcodes: function () {
var self = this;
$( '.wp-audio-shortcode, .wp-video-shortcode', this.node ).each( function ( i, element ) {
self.players.push( new MediaElementPlayer( element, self.mejsSettings ) );
} );
}
} );
wp.mce.embedMixin = {
View: wp.mce.embedView,
edit: function( node ) {
var embed = media.embed,
self = this,
frame,
data,
isURL = 'embedURL' === this.type;
$( document ).trigger( 'media:edit' );
data = window.decodeURIComponent( $( node ).attr('data-wpview-text') );
frame = embed.edit( data, isURL );
frame.on( 'close', function() {
frame.detach();
} );
frame.state( 'embed' ).props.on( 'change:url', function (model, url) {
if ( ! url ) {
return;
}
frame.state( 'embed' ).metadata = model.toJSON();
} );
frame.state( 'embed' ).on( 'select', function() {
var shortcode;
if ( isURL ) {
shortcode = frame.state( 'embed' ).metadata.url;
} else {
shortcode = embed.shortcode( frame.state( 'embed' ).metadata ).string();
}
$( node ).attr( 'data-wpview-text', window.encodeURIComponent( shortcode ) );
wp.mce.views.refreshView( self, shortcode );
frame.detach();
} );
frame.open();
}
};
wp.mce.views.register( 'embed', _.extend( {}, wp.mce.embedMixin ) );
wp.mce.views.register( 'embedURL', _.extend( {}, wp.mce.embedMixin, {
toView: function( content ) {
var re = /(?:^|<p>)(https?:\/\/[^\s"]+?)(?:<\/p>\s*|$)/gi,
match = re.exec( tinymce.trim( content ) );
if ( ! match ) {
return;
}
return {
index: match.index,
content: match[0],
options: {
url: match[1]
}
};
}
} ) );
}(jQuery));