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      1 /*
      2  * Copyright (C) 2010, Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1.  Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  * 2.  Redistributions in binary form must reproduce the above copyright
     10  *     notice, this list of conditions and the following disclaimer in the
     11  *     documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #ifndef InspectorCSSAgent_h
     26 #define InspectorCSSAgent_h
     27 
     28 #include "InspectorDOMAgent.h"
     29 #include "InspectorStyleSheet.h"
     30 #include "InspectorValues.h"
     31 #include "PlatformString.h"
     32 
     33 #include <wtf/HashMap.h>
     34 #include <wtf/PassRefPtr.h>
     35 #include <wtf/RefPtr.h>
     36 
     37 namespace WebCore {
     38 
     39 class CSSRule;
     40 class CSSRuleList;
     41 class CSSStyleDeclaration;
     42 class CSSStyleRule;
     43 class CSSStyleSheet;
     44 class Document;
     45 class Element;
     46 class InspectorFrontend;
     47 class InstrumentingAgents;
     48 class NameNodeMap;
     49 class Node;
     50 class StyleBase;
     51 
     52 #if ENABLE(INSPECTOR)
     53 
     54 class InspectorCSSAgent : public InspectorDOMAgent::DOMListener {
     55     WTF_MAKE_NONCOPYABLE(InspectorCSSAgent);
     56 public:
     57     static CSSStyleSheet* parentStyleSheet(StyleBase*);
     58     static CSSStyleRule* asCSSStyleRule(StyleBase*);
     59 
     60     InspectorCSSAgent(InstrumentingAgents*, InspectorDOMAgent*);
     61     ~InspectorCSSAgent();
     62 
     63     void reset();
     64     void getStylesForNode(ErrorString*, int nodeId, RefPtr<InspectorObject>* result);
     65     void getInlineStyleForNode(ErrorString*, int nodeId, RefPtr<InspectorObject>* style);
     66     void getComputedStyleForNode(ErrorString*, int nodeId, RefPtr<InspectorObject>* style);
     67     void getAllStyleSheets(ErrorString*, RefPtr<InspectorArray>* styleSheetInfos);
     68     void getStyleSheet(ErrorString*, const String& styleSheetId, RefPtr<InspectorObject>* result);
     69     void getStyleSheetText(ErrorString*, const String& styleSheetId, String* result);
     70     void setStyleSheetText(ErrorString*, const String& styleSheetId, const String& text);
     71     void setPropertyText(ErrorString*, const RefPtr<InspectorObject>& styleId, int propertyIndex, const String& text, bool overwrite, RefPtr<InspectorObject>* result);
     72     void toggleProperty(ErrorString*, const RefPtr<InspectorObject>& styleId, int propertyIndex, bool disable, RefPtr<InspectorObject>* result);
     73     void setRuleSelector(ErrorString*, const RefPtr<InspectorObject>& ruleId, const String& selector, RefPtr<InspectorObject>* result);
     74     void addRule(ErrorString*, const int contextNodeId, const String& selector, RefPtr<InspectorObject>* result);
     75     void getSupportedCSSProperties(ErrorString*, RefPtr<InspectorArray>* result);
     76 
     77 private:
     78     typedef HashMap<String, RefPtr<InspectorStyleSheet> > IdToInspectorStyleSheet;
     79     typedef HashMap<CSSStyleSheet*, RefPtr<InspectorStyleSheet> > CSSStyleSheetToInspectorStyleSheet;
     80     typedef HashMap<Node*, RefPtr<InspectorStyleSheetForInlineStyle> > NodeToInspectorStyleSheet; // bogus "stylesheets" with elements' inline styles
     81     typedef HashMap<RefPtr<Document>, RefPtr<InspectorStyleSheet> > DocumentToViaInspectorStyleSheet; // "via inspector" stylesheets
     82 
     83     static Element* inlineStyleElement(CSSStyleDeclaration*);
     84 
     85     InspectorStyleSheetForInlineStyle* asInspectorStyleSheet(Element* element);
     86     Element* elementForId(ErrorString*, int nodeId);
     87 
     88     InspectorStyleSheet* bindStyleSheet(CSSStyleSheet*);
     89     InspectorStyleSheet* viaInspectorStyleSheet(Document*, bool createIfAbsent);
     90     InspectorStyleSheet* assertStyleSheetForId(ErrorString*, const String&);
     91     String detectOrigin(CSSStyleSheet* pageStyleSheet, Document* ownerDocument);
     92 
     93     PassRefPtr<InspectorArray> buildArrayForRuleList(CSSRuleList* ruleList);
     94     PassRefPtr<InspectorArray> buildArrayForAttributeStyles(Element*);
     95 
     96     // InspectorDOMAgent::DOMListener interface
     97     virtual void didRemoveDocument(Document*);
     98     virtual void didRemoveDOMNode(Node*);
     99     virtual void didModifyDOMAttr(Element*);
    100 
    101     InstrumentingAgents* m_instrumentingAgents;
    102     InspectorDOMAgent* m_domAgent;
    103 
    104     IdToInspectorStyleSheet m_idToInspectorStyleSheet;
    105     CSSStyleSheetToInspectorStyleSheet m_cssStyleSheetToInspectorStyleSheet;
    106     NodeToInspectorStyleSheet m_nodeToInspectorStyleSheet;
    107     DocumentToViaInspectorStyleSheet m_documentToInspectorStyleSheet;
    108 
    109     int m_lastStyleSheetId;
    110     int m_lastRuleId;
    111     int m_lastStyleId;
    112 };
    113 
    114 #endif
    115 
    116 } // namespace WebCore
    117 
    118 #endif // !defined(InspectorCSSAgent_h)
    119