grapesjs/src/commands/view/OpenLayers.js

define(['Navigator'], function(Layers) {
		/**
		 * @class OpenStyleManager
		 * @private
		 * */
		return {

			run: function(em, sender)
			{
				if(!this.$layers){
					var collection	= em.get('Components').getComponent().get('components'),
						config				= em.get('Config'),
						panels				= em.get('Panels'),
						lyStylePfx		= config.layers.stylePrefix || 'nv-';

					config.layers.stylePrefix = config.stylePrefix + lyStylePfx;
					config.layers.em 	= em;
					var layers				= new Layers(collection, config.layers);
					this.$layers 			= layers.render();

					// Check if panel exists otherwise crate it
					if(!panels.getPanel('views-container'))
						this.panel			= panels.addPanel({ id: 'views-container'});
					else
						this.panel			= panels.getPanel('views-container');

					this.panel.set('appendContent', this.$layers).trigger('change:appendContent');
				}
				this.$layers.show();
			},

			stop: function()
			{
				if(this.$layers)
					this.$layers.hide();
			}
		};
	});