code: function (oEvent) {
  			var sSource = oEvent.getSource();
  			var sContentBindingPath = sSource.getBindingContextPath().substring(1);
  			var sContentModelData = this.getView().getModel("content").getData();
  			var sContent = sContentModelData[sContentBindingPath];
  			var sContentName = sContent.name;
  			var sContentFileType = sContentModelData[sContentBindingPath].fileType;
  			var oRouter = UIComponent.getRouterFor(this);
  
  			this.sNamespace = (this.sNamespace ? this.sNamespace : '/');
  
  				if (sContentFileType) {
  					// show details to a file
  					var mRouteParameters = {
  						"layer": this.sLayer,
  						"namespace": encodeURIComponent(this.sNamespace),
  						"fileName": sContentName,
  						"fileType": sContentFileType
  					};
  					oRouter.navTo("ContentDetails", mRouteParameters);
  				} else {
  					// navigation to a namespace
  					this.sNamespace += sContentName + '/';
  					oRouter.navTo("LayerContentMaster", {"layer": this.sLayer, "namespace": encodeURIComponent(this.sNamespace)});
  				}
  		}
docs: Handles the selection of a layer entry in the master page;
  Gathers the selected namespace and the current layer, then navigates to the target.
  @param {Object} oEvent - press event of master components list
  @public