Page Speed Optimization Libraries
1.3.25.1
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00001 /* 00002 * Copyright 2012 Google Inc. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http:///www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00052 00053 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_DEFER_IFRAME_FILTER_H_ 00054 #define NET_INSTAWEB_REWRITER_PUBLIC_DEFER_IFRAME_FILTER_H_ 00055 00056 #include "net/instaweb/htmlparse/public/empty_html_filter.h" 00057 #include "net/instaweb/util/public/basictypes.h" 00058 00059 namespace net_instaweb { 00060 00061 class HtmlElement; 00062 class RewriteDriver; 00063 class StaticAssetManager; 00064 00065 class DeferIframeFilter : public EmptyHtmlFilter { 00066 public: 00067 static const char kDeferIframeInit[]; 00068 static const char kDeferIframeIframeJs[]; 00069 explicit DeferIframeFilter(RewriteDriver* driver); 00070 ~DeferIframeFilter(); 00071 00072 virtual void StartDocument(); 00073 virtual void StartElement(HtmlElement* element); 00074 virtual void EndElement(HtmlElement* element); 00075 virtual void DetermineEnabled(); 00076 00077 virtual const char* Name() const { return "DeferIframe"; } 00078 00079 private: 00080 RewriteDriver* driver_; 00081 StaticAssetManager* static_asset_manager_; 00082 bool script_inserted_; 00083 00084 DISALLOW_COPY_AND_ASSIGN(DeferIframeFilter); 00085 }; 00086 00087 } 00088 00089 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_DEFER_IFRAME_FILTER_H_