grapesjs/bundle/storage_manager/model/LocalStorage.js

define(['backbone'], 
	function (Backbone) {
		/**
		 * @class LocalStorage
		 * */
		return Backbone.Model.extend({
			
			id: 'local',
			
			defaults: {
				checkSupport		: true,
				errorNoSupport		: 'Error encountered while parsing JSON response',
			},
			
			/** @inheritdoc */
			getId	: function() {
				return	this.id;
			},
			
			/** @inheritdoc */
			store	: function(name, value) {
				this.checkStorageEnvironment();
				localStorage.setItem(name, value );
			},
			
			/** @inheritdoc */
			load: function(name){
				var result	= null;	
				this.checkStorageEnvironment();
				if(localStorage.getItem(name))
					result 	= localStorage.getItem(name);
				try{
					var prx	= "Loading '" + name + "': ";
					if(!result)
						throw prx + ' Resource was not found';
				}catch(err){
					console.warn(err);
				}
				return result;
			},
			
			/** @inheritdoc */
			remove	: function(name) {
				this.checkStorageEnvironment();
				localStorage.removeItem(name);
			},
			
			/** 
			 * Check storage environment
			 * @return void
			 * */
			checkStorageEnvironment: function(){
				if(this.get('checkSupport'))
					if( !localStorage )
						console.warn(this.get('errorNoSupport'));
			},
			
		});
});