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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef FontLoader_h
      6 #define FontLoader_h
      7 
      8 #include "core/fetch/ResourceLoader.h"
      9 #include "core/fetch/ResourcePtr.h"
     10 #include "platform/Timer.h"
     11 #include "platform/heap/Handle.h"
     12 #include "wtf/Vector.h"
     13 
     14 namespace blink {
     15 
     16 class CSSFontSelector;
     17 class FontResource;
     18 
     19 class FontLoader : public RefCountedWillBeGarbageCollectedFinalized<FontLoader> {
     20 public:
     21     static PassRefPtrWillBeRawPtr<FontLoader> create(CSSFontSelector* fontSelector, ResourceFetcher* fetcher)
     22     {
     23         return adoptRefWillBeNoop(new FontLoader(fontSelector, fetcher));
     24     }
     25     ~FontLoader();
     26 
     27     void addFontToBeginLoading(FontResource*);
     28     void loadPendingFonts();
     29     void fontFaceInvalidated();
     30 
     31 #if !ENABLE(OILPAN)
     32     void clearResourceFetcherAndFontSelector();
     33 #endif
     34 
     35     void trace(Visitor*);
     36 
     37 private:
     38     FontLoader(CSSFontSelector*, ResourceFetcher*);
     39     void beginLoadTimerFired(Timer<FontLoader>*);
     40     void clearPendingFonts();
     41 
     42     Timer<FontLoader> m_beginLoadingTimer;
     43 
     44     typedef Vector<std::pair<ResourcePtr<FontResource>, ResourceLoader::RequestCountTracker> > FontsToLoadVector;
     45     FontsToLoadVector m_fontsToBeginLoading;
     46     RawPtrWillBeMember<CSSFontSelector> m_fontSelector;
     47     RawPtrWillBeWeakMember<ResourceFetcher> m_resourceFetcher;
     48 };
     49 
     50 } // namespace blink
     51 
     52 #endif // FontLoader_h
     53