js_outline_filter.h

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/*
 * Copyright 2010 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.
 */


#ifndef NET_INSTAWEB_REWRITER_PUBLIC_JS_OUTLINE_FILTER_H_
#define NET_INSTAWEB_REWRITER_PUBLIC_JS_OUTLINE_FILTER_H_

#include <cstddef>

#include "net/instaweb/rewriter/public/common_filter.h"
#include "net/instaweb/rewriter/public/output_resource.h"
#include "net/instaweb/rewriter/public/rewrite_driver.h"
#include "net/instaweb/rewriter/public/script_tag_scanner.h"
#include "net/instaweb/rewriter/public/server_context.h"
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/string.h"
#include "pagespeed/kernel/html/html_element.h"
#include "pagespeed/kernel/html/html_filter.h"
#include "pagespeed/kernel/html/html_node.h"

namespace net_instaweb {
class MessageHandler;

class JsOutlineFilter : public CommonFilter {
 public:
  explicit JsOutlineFilter(RewriteDriver* driver);
  virtual ~JsOutlineFilter();
  static const char kFilterId[];

  virtual void StartDocumentImpl();

  virtual void StartElementImpl(HtmlElement* element);
  virtual void EndElementImpl(HtmlElement* element);

  virtual void Flush();

  virtual void Characters(HtmlCharactersNode* characters);

  virtual const char* Name() const { return "OutlineJs"; }
  ScriptUsage GetScriptUsage() const override { return kWillInjectScripts; }

 private:
  bool WriteResource(const GoogleString& content, OutputResource* resource,
                     MessageHandler* handler);
  void OutlineScript(HtmlElement* element, const GoogleString& content);

  HtmlElement* inline_element_;
  HtmlCharactersNode* inline_chars_;
  ServerContext* server_context_;
  size_t size_threshold_bytes_;
  ScriptTagScanner script_tag_scanner_;

  
};

}  

#endif