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/* =========================================================
* vc_ui-extend-backbone.js v1.0.0
* =========================================================
* Copyright 2015 WPBakery
*
* Visual Composer extend Backbone ui events.
*
* ========================================================= */
/* global vc, Backbone, _ */
(function ( _, Backbone, vc ) {
'use strict';
/**
* Extend UI method to map events for ui.
* @param object
* @returns {*}
* @constructor
*/
function ExtendUI( object ) {
var newObject = this.extend( object );
if ( ! newObject.prototype._vcUIEventsHooks ) {
newObject.prototype._vcUIEventsHooks = [];
}
if ( object.uiEvents ) {
newObject.prototype._vcUIEventsHooks.push( object.uiEvents );
}
return newObject;
}
Backbone.View.vcExtendUI = ExtendUI;
/**
* Add new mapping for ui events in delegateEvents method for default Backbone.View.
*/
vc.View = Backbone.View.extend( {
delegateEvents: function () {
// Call default
vc.View.__super__.delegateEvents.call( this );
if ( this._vcUIEventsHooks && this._vcUIEventsHooks.length ) {
_.each( this._vcUIEventsHooks, function ( events ) {
if ( _.isObject( events ) ) {
_.each( events, function ( methods, e ) {
if ( _.isString( methods ) ) {
_.each( methods.split( /\s+/ ), function ( method ) {
this.on( e, this[ method ], this );
}, this );
}
}, this );
}
}, this );
}
}
} );
})( _, Backbone, vc );