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css_move_to_head_filter.h
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1 /*
2  * Copyright 2010 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http:///www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
18 
19 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_CSS_MOVE_TO_HEAD_FILTER_H_
20 #define NET_INSTAWEB_REWRITER_PUBLIC_CSS_MOVE_TO_HEAD_FILTER_H_
21 
25 #include "pagespeed/kernel/base/string.h"
26 
27 namespace net_instaweb {
28 
29 class HtmlElement;
30 class RewriteDriver;
31 class Statistics;
32 class Variable;
33 
37  public:
38  explicit CssMoveToHeadFilter(RewriteDriver* driver);
39  virtual ~CssMoveToHeadFilter();
40 
41  static void InitStats(Statistics* statistics);
42 
43  virtual void StartDocumentImpl();
44  virtual void StartElementImpl(HtmlElement* element) {}
45  virtual void EndElementImpl(HtmlElement* element);
46 
47  virtual const char* Name() const { return "CssMoveToHead"; }
48  virtual void DetermineEnabled(GoogleString* disabled_reason);
49 
50  private:
51  CssTagScanner css_tag_scanner_;
52 
54  bool move_css_to_head_;
57  bool move_css_above_scripts_;
58 
59  HtmlElement* move_to_element_;
60  bool element_is_head_;
61 
62  Variable* css_elements_moved_;
63 
64  DISALLOW_COPY_AND_ASSIGN(CssMoveToHeadFilter);
65 };
66 
67 }
68 
69 #endif
Definition: common_filter.h:48
Definition: rewrite_driver.h:98
Definition: css_tag_scanner.h:37
Definition: css_move_to_head_filter.h:36