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       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef nsXBLPrototypeResources_h__
       8             : #define nsXBLPrototypeResources_h__
       9             : 
      10             : #include "mozilla/StyleSheet.h"
      11             : #include "nsICSSLoaderObserver.h"
      12             : 
      13             : class nsCSSRuleProcessor;
      14             : class nsIAtom;
      15             : class nsIContent;
      16             : class nsXBLPrototypeBinding;
      17             : class nsXBLResourceLoader;
      18             : 
      19             : namespace mozilla {
      20             : class CSSStyleSheet;
      21             : class ServoStyleSet;
      22             : } // namespace mozilla
      23             : 
      24             : // *********************************************************************/
      25             : // The XBLPrototypeResources class
      26             : 
      27             : class nsXBLPrototypeResources
      28             : {
      29             : public:
      30             :   explicit nsXBLPrototypeResources(nsXBLPrototypeBinding* aBinding);
      31             :   ~nsXBLPrototypeResources();
      32             : 
      33             :   bool LoadResources(nsIContent* aBoundElement);
      34             :   void AddResource(nsIAtom* aResourceType, const nsAString& aSrc);
      35             :   void AddResourceListener(nsIContent* aElement);
      36             :   nsresult FlushSkinSheets();
      37             : 
      38             :   nsresult Write(nsIObjectOutputStream* aStream);
      39             : 
      40             :   void Traverse(nsCycleCollectionTraversalCallback &cb);
      41             :   void Unlink();
      42             : 
      43             :   void ClearLoader();
      44             : 
      45             :   void AppendStyleSheet(mozilla::StyleSheet* aSheet);
      46             :   void RemoveStyleSheet(mozilla::StyleSheet* aSheet);
      47             :   void InsertStyleSheetAt(size_t aIndex, mozilla::StyleSheet* aSheet);
      48             :   mozilla::StyleSheet* StyleSheetAt(size_t aIndex) const;
      49             :   size_t SheetCount() const;
      50             :   bool HasStyleSheets() const;
      51             :   void AppendStyleSheetsTo(nsTArray<mozilla::StyleSheet*>& aResult) const;
      52             : 
      53             :   /**
      54             :    * Recreates mRuleProcessor to represent the current list of style sheets
      55             :    * stored in mStyleSheetList.  (Named GatherRuleProcessor to parallel
      56             :    * nsStyleSet::GatherRuleProcessors.)
      57             :    */
      58             :   void GatherRuleProcessor();
      59             : 
      60        4032 :   nsCSSRuleProcessor* GetRuleProcessor() const { return mRuleProcessor; }
      61             : 
      62             :   // Updates the ServoStyleSet object that holds the result of cascading the
      63             :   // sheets in mStyleSheetList. Equivalent to GatherRuleProcessor(), but for
      64             :   // the Servo style backend.
      65             :   void ComputeServoStyleSet(nsPresContext* aPresContext);
      66             : 
      67           0 :   const mozilla::ServoStyleSet* GetServoStyleSet() const { return mServoStyleSet.get(); }
      68             : 
      69             : private:
      70             :   // A loader object. Exists only long enough to load resources, and then it dies.
      71             :   RefPtr<nsXBLResourceLoader> mLoader;
      72             : 
      73             :   // A list of loaded stylesheets for this binding.
      74             :   nsTArray<RefPtr<mozilla::StyleSheet>> mStyleSheetList;
      75             : 
      76             :   // The list of stylesheets converted to a rule processor.
      77             :   RefPtr<nsCSSRuleProcessor> mRuleProcessor;
      78             : 
      79             :   // The result of cascading the XBL style sheets like mRuleProcessor, but
      80             :   // for the Servo style backend.
      81             :   // XXX: We might want to design a better representation for the result of
      82             :   // cascading the XBL style sheets, like a collection of SelectorMaps.
      83             :   mozilla::UniquePtr<mozilla::ServoStyleSet> mServoStyleSet;
      84             : };
      85             : 
      86             : #endif