mediawiki-extensions-Visual.../modules/ve-mw/ce/nodes/ve.ce.MWImageNode.js
Ed Sanders 8a40585847 Re-render images after resize
Using the MW APIs get a resized version of the image and use
GeneratedContentNode to cache the url.

Bug: 55697
Change-Id: I418f7e1464663f447d46de7ffc29aa5f52d23b12
2013-10-16 16:38:31 +01:00

123 lines
3.5 KiB
JavaScript

/*!
* VisualEditor ContentEditable MWImageNode class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* ContentEditable MediaWiki image node.
*
* @class
* @abstract
* @extends ve.ce.GeneratedContentNode
* @mixins ve.ce.ProtectedNode
* @mixins ve.ce.FocusableNode
* @mixins ve.ce.RelocatableNode
* @mixins ve.ce.MWResizableNode
*
* @constructor
* @param {Object} [config] Configuration options
*/
ve.ce.MWImageNode = function VeCeMWImageNode( $inner, $image, config ) {
// Parent constructor
ve.ce.GeneratedContentNode.call( this );
this.$inner = $inner;
this.$image = $image;
// Mixin constructors
ve.ce.ProtectedNode.call( this, this.$inner, config );
ve.ce.FocusableNode.call( this, this.$inner, config );
ve.ce.RelocatableNode.call( this, this.$inner, config );
ve.ce.MWResizableNode.call( this, this.$image, config );
};
/* Inheritance */
ve.inheritClass( ve.ce.MWImageNode, ve.ce.GeneratedContentNode );
ve.mixinClass( ve.ce.MWImageNode, ve.ce.ProtectedNode );
ve.mixinClass( ve.ce.MWImageNode, ve.ce.FocusableNode );
ve.mixinClass( ve.ce.MWImageNode, ve.ce.RelocatableNode );
// Need to mixin base class as well
ve.mixinClass( ve.ce.MWImageNode, ve.ce.ResizableNode );
ve.mixinClass( ve.ce.MWImageNode, ve.ce.MWResizableNode );
/* Methods */
/** */
ve.ce.MWImageNode.prototype.generateContents = function () {
var i, len, source,
sources = ve.copy( ve.init.platform.getMediaSources() ),
deferred = $.Deferred();
for ( i = 0, len = sources.length; i < len; i++ ) {
source = sources[i];
source.request = $.ajax( {
'url': source.url,
'data': {
'action': 'query',
'prop': 'imageinfo',
'iiprop': 'url',
'iiurlwidth': this.model.getAttribute( 'width' ),
'iiurlheight': this.model.getAttribute( 'height' ),
'titles': this.model.getAttribute( 'resource' ).replace( /^(.+\/)*/, '' ),
'format': 'json'
},
// This request won't be cached since the JSON-P callback is unique. However make sure
// to allow jQuery to cache otherwise so it won't e.g. add "&_=(random)" which will
// trigger a MediaWiki API error for invalid parameter "_".
'cache': true,
// TODO: Only use JSON-P for cross-domain.
// jQuery has this logic built-in (if url is not same-origin ..)
// but isn't working for some reason.
'dataType': 'jsonp',
'success': ve.bind( this.onParseSuccess, this, deferred ),
'error': ve.bind( this.onParseError, this, deferred )
} );
}
return deferred.promise();
};
/**
* Handle a successful response from the parser for the image src.
*
* @param {jQuery.Deferred} deferred The Deferred object created by generateContents
* @param {Object} response Response data
*/
ve.ce.MWImageNode.prototype.onParseSuccess = function ( deferred, response ) {
var id, src, pages = ve.getProp( response, 'query', 'pages' );
for ( id in pages ) {
if ( pages[id].imageinfo ) {
src = pages[id].imageinfo[0].thumburl;
}
}
if ( src ) {
deferred.resolve( src );
}
};
/** */
ve.ce.MWImageNode.prototype.render = function ( generateContents ) {
this.$image.attr( 'src', generateContents );
if ( this.live ) {
this.afterRender();
}
};
/**
* Handle an unsuccessful response from the parser for the image src.
*
* @param {jQuery.Deferred} deferred The promise object created by generateContents
* @param {Object} response Response data
*/
ve.ce.MWImageNode.prototype.onParseError = function ( deferred ) {
deferred.reject();
};