| /* |
| * Copyright 2008 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.resources.rebind.context; |
| |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| |
| class InlineResourceContext extends StaticResourceContext { |
| /** |
| * String constants in Java have a maximum limit that we must obey. |
| */ |
| public static final int MAX_ENCODED_SIZE = (2 << 15) - 1; |
| |
| InlineResourceContext(TreeLogger logger, GeneratorContext context, |
| JClassType resourceBundleType, ClientBundleContext clientBundleCtx) { |
| super(logger, context, resourceBundleType, clientBundleCtx); |
| } |
| |
| @Override |
| public String deploy(String suggestedFileName, String mimeType, byte[] data, |
| boolean forceExternal) throws UnableToCompleteException { |
| TreeLogger logger = getLogger(); |
| |
| // data: URLs are not compatible with XHRs on FF and Safari browsers |
| if ((!forceExternal) && (data.length < MAX_INLINE_SIZE)) { |
| logger.log(TreeLogger.DEBUG, "Inlining", null); |
| |
| String base64Contents = toBase64(data); |
| |
| // CHECKSTYLE_OFF |
| String encoded = "\"data:" + mimeType.replaceAll("\"", "\\\\\"") |
| + ";base64," + base64Contents + "\""; |
| // CHECKSTYLE_ON |
| |
| /* |
| * We know that the encoded format will be one byte per character, since |
| * we're using only ASCII characters. |
| */ |
| if (encoded.length() < MAX_ENCODED_SIZE) { |
| return encoded; |
| } |
| } |
| |
| return super.deploy(suggestedFileName, mimeType, data, true); |
| } |
| |
| @Override |
| public boolean supportsDataUrls() { |
| return true; |
| } |
| } |