| /******************************************************************************* |
| * Copyright (c) 2013 EclipseSource and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * EclipseSource - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.rap.addons.dropdown.internal.resources; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.eclipse.rap.rwt.RWT; |
| import org.eclipse.rap.rwt.client.service.JavaScriptLoader; |
| |
| |
| public final class DropDownResources { |
| |
| public static final String[] SCRIPTS = new String[] { |
| "rwt/dropdown/DropDown.js", |
| "rwt/dropdown/DropDownHandler.js" |
| }; |
| |
| private static final boolean DEBUG = true; |
| |
| public static void ensure() { |
| ensureRegistered(); |
| ensureLoaded(); |
| } |
| |
| private static void ensureRegistered() { |
| if( DEBUG && RWT.getResourceManager().isRegistered( SCRIPTS[ 0 ] ) ) { |
| deregister(); |
| } |
| if( !RWT.getResourceManager().isRegistered( SCRIPTS[ 0 ] ) ) { |
| try { |
| register(); |
| } catch( IOException exception ) { |
| throw new RuntimeException( "Failed to register resources", exception ); |
| } |
| } |
| } |
| |
| private static void ensureLoaded() { |
| for( String script : SCRIPTS ) { |
| JavaScriptLoader loader = RWT.getClient().getService( JavaScriptLoader.class ); |
| loader.require( RWT.getResourceManager().getLocation( script ) ); |
| } |
| } |
| |
| private static void register() throws IOException { |
| for( String script : SCRIPTS ) { |
| InputStream inputStream = getResourceAsStream( script ); |
| try { |
| RWT.getResourceManager().register( script, inputStream ); |
| } finally { |
| inputStream.close(); |
| } |
| } |
| } |
| |
| private static void deregister() { |
| for( String script : SCRIPTS ) { |
| RWT.getResourceManager().unregister( script ); |
| } |
| } |
| |
| public static InputStream getResourceAsStream( String resourceName ) { |
| ClassLoader classLoader = DropDownResources.class.getClassLoader(); |
| InputStream inputStream = classLoader.getResourceAsStream( resourceName ); |
| if( inputStream == null ) { |
| throw new RuntimeException( "Resource not found: " + resourceName ); |
| } |
| return inputStream; |
| } |
| |
| private DropDownResources() { |
| } |
| |
| } |