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Mini Shell
/*!
* VisualEditor ContentEditable MWImageNode class.
*
* @copyright 2011-2016 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.FocusableNode
* @mixins ve.ce.MWResizableNode
*
* @constructor
* @param {jQuery} $figure Figure element
* @param {jQuery} $image Image element
* @param {Object} [config] Configuration options
*/
ve.ce.MWImageNode = function VeCeMWImageNode( $figure, $image, config ) {
config = ve.extendObject( {
enforceMax: false,
minDimensions: { width: 1, height: 1 }
}, config );
// Properties
this.$figure = $figure;
this.$image = $image;
// Parent constructor triggers render so this must precede it
this.renderedDimensions = null;
// Parent constructor
ve.ce.GeneratedContentNode.call( this );
// Mixin constructors
ve.ce.FocusableNode.call( this, this.$figure, config );
ve.ce.MWResizableNode.call( this, this.$image, config );
// Events
this.model.connect( this, { attributeChange: 'onAttributeChange' } );
};
/* Inheritance */
OO.inheritClass( ve.ce.MWImageNode, ve.ce.GeneratedContentNode );
OO.mixinClass( ve.ce.MWImageNode, ve.ce.FocusableNode );
// Need to mixin base class as well
OO.mixinClass( ve.ce.MWImageNode, ve.ce.ResizableNode );
OO.mixinClass( ve.ce.MWImageNode, ve.ce.MWResizableNode );
/* Static Properties */
ve.ce.MWImageNode.static.primaryCommandName = 'media';
/* Static Methods */
/**
* @inheritdoc ve.ce.Node
*/
ve.ce.MWImageNode.static.getDescription = function ( model ) {
var title = new mw.Title( model.getFilename() );
return title.getMainText();
};
/* Methods */
/**
* Update the rendering of the 'align', src', 'width' and 'height' attributes
* when they change in the model.
*
* @method
* @param {string} key Attribute key
* @param {string} from Old value
* @param {string} to New value
*/
ve.ce.MWImageNode.prototype.onAttributeChange = function () {};
/** */
ve.ce.MWImageNode.prototype.generateContents = function () {
var xhr,
width = this.getModel().getAttribute( 'width' ),
height = this.getModel().getAttribute( 'height' ),
deferred = $.Deferred();
// If the current rendering is larger don't fetch a new image, just let the browser resize
if ( this.renderedDimensions && this.renderedDimensions.width > width ) {
return deferred.reject().promise();
}
xhr = new mw.Api().get( {
action: 'query',
prop: 'imageinfo',
iiprop: 'url',
iiurlwidth: width,
iiurlheight: height,
titles: this.getModel().getFilename()
} )
.done( this.onParseSuccess.bind( this, deferred ) )
.fail( this.onParseError.bind( this, deferred ) );
return deferred.promise( { abort: xhr.abort } );
};
/**
* Handle a successful response from the parser for the image src.
*
* @param {jQuery.Deferred} deferred The Deferred object created by generateContents
* @param {Object} response Response data
*/
ve.ce.MWImageNode.prototype.onParseSuccess = function ( deferred, response ) {
var id, src, pages = ve.getProp( response, 'query', 'pages' );
for ( id in pages ) {
if ( pages[ id ].imageinfo ) {
src = pages[ id ].imageinfo[ 0 ].thumburl;
}
}
if ( src ) {
deferred.resolve( src );
} else {
deferred.reject();
}
};
/** */
ve.ce.MWImageNode.prototype.render = function ( generatedContents ) {
this.$image.attr( 'src', generatedContents );
// As we only re-render when the image is larger than last rendered size
// this will always be the largest ever rendering
this.renderedDimensions = ve.copy( this.model.getScalable().getCurrentDimensions() );
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();
};
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