| /* |
| * Copyright 2009 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.core.client.prefetch; |
| |
| import com.google.gwt.core.client.GWT; |
| import com.google.gwt.core.client.impl.AsyncFragmentLoader; |
| |
| /** |
| * A request to load the code for a |
| * {@link com.google.gwt.core.client.GWT#runAsync(Class, com.google.gwt.core.client.RunAsyncCallback)} |
| * split point. |
| */ |
| public class RunAsyncCode implements PrefetchableResource { |
| /** |
| * Create an instance for the split point named with the given class. The |
| * provided class must be a class literal. |
| * |
| * @param splitPoint a Class literal used to name the split point |
| */ |
| public static RunAsyncCode runAsyncCode(Class<?> splitPoint) { |
| // This is a place holder for development mode. |
| return forSplitPointNumber(-1); |
| } |
| |
| /** |
| * Not for direct use by application code. Calls to this method are created by |
| * the compiler. |
| */ |
| static RunAsyncCode forSplitPointNumber(int splitPoint) { |
| return new RunAsyncCode(splitPoint); |
| } |
| |
| private final int splitPoint; |
| |
| private RunAsyncCode(int splitPoint) { |
| this.splitPoint = splitPoint; |
| } |
| |
| public int getSplitPoint() { |
| return splitPoint; |
| } |
| |
| /** |
| * Ask whether this code has already been loaded. |
| */ |
| public boolean isLoaded() { |
| if (GWT.isScript()) { |
| return true; |
| } |
| return AsyncFragmentLoader.BROWSER_LOADER.isAlreadyLoaded(splitPoint); |
| } |
| } |