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This class didn't actually do anything anymore. R=abarth@chromium.org Review URL: https://codereview.chromium.org/655083003
152 lines
5.2 KiB
C++
152 lines
5.2 KiB
C++
/*
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* Copyright (C) 2013 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#ifndef FontFaceSet_h
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#define FontFaceSet_h
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#include "bindings/core/v8/ScriptPromise.h"
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#include "core/css/FontFace.h"
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#include "core/css/FontFaceSetForEachCallback.h"
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#include "core/dom/ActiveDOMObject.h"
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#include "core/events/EventListener.h"
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#include "core/events/EventTarget.h"
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#include "platform/AsyncMethodRunner.h"
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#include "platform/RefCountedSupplement.h"
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#include "wtf/PassRefPtr.h"
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#include "wtf/RefCounted.h"
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#include "wtf/Vector.h"
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// Mac OS X 10.6 SDK defines check() macro that interfares with our check() method
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#ifdef check
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#undef check
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#endif
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namespace blink {
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class CSSFontFace;
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class CSSFontFaceSource;
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class CSSFontSelector;
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class Dictionary;
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class Document;
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class ExceptionState;
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class Font;
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class FontFaceCache;
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class FontResource;
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class FontsReadyPromiseResolver;
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class ExecutionContext;
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class FontFaceSet final : public RefCountedSupplement<Document, FontFaceSet>, public ActiveDOMObject, public EventTargetWithInlineData {
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DEFINE_EVENT_TARGET_REFCOUNTING(RefCounted<FontFaceSet>);
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typedef RefCountedSupplement<Document, FontFaceSet> SupplementType;
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DEFINE_WRAPPERTYPEINFO();
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public:
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virtual ~FontFaceSet();
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bool check(const String& font, const String& text, ExceptionState&);
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ScriptPromise load(ScriptState*, const String& font, const String& text);
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ScriptPromise ready(ScriptState*);
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void add(FontFace*, ExceptionState&);
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void clear();
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bool remove(FontFace*, ExceptionState&);
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void forEach(PassOwnPtr<FontFaceSetForEachCallback>, const ScriptValue& thisArg) const;
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void forEach(PassOwnPtr<FontFaceSetForEachCallback>) const;
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bool has(FontFace*, ExceptionState&) const;
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unsigned long size() const;
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AtomicString status() const;
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virtual ExecutionContext* executionContext() const override;
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virtual const AtomicString& interfaceName() const override;
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Document* document() const;
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void didLayout();
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void beginFontLoading(FontFace*);
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void fontLoaded(FontFace*);
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void loadError(FontFace*);
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// ActiveDOMObject
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virtual void suspend() override;
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virtual void resume() override;
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virtual void stop() override;
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static PassRefPtr<FontFaceSet> from(Document&);
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static void didLayout(Document&);
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void addFontFacesToFontFaceCache(FontFaceCache*, CSSFontSelector*);
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private:
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static PassRefPtr<FontFaceSet> create(Document& document)
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{
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return adoptRef(new FontFaceSet(document));
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}
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class FontLoadHistogram {
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public:
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enum Status { NoWebFonts, HadBlankText, DidNotHaveBlankText, Reported };
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FontLoadHistogram() : m_status(NoWebFonts), m_count(0), m_recorded(false) { }
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void incrementCount() { m_count++; }
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void updateStatus(FontFace*);
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void record();
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private:
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Status m_status;
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int m_count;
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bool m_recorded;
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};
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FontFaceSet(Document&);
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bool hasLoadedFonts() const { return !m_loadedFonts.isEmpty() || !m_failedFonts.isEmpty(); }
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bool inActiveDocumentContext() const;
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void forEachInternal(PassOwnPtr<FontFaceSetForEachCallback>, const ScriptValue* thisArg) const;
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void addToLoadingFonts(PassRefPtr<FontFace>);
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void removeFromLoadingFonts(PassRefPtr<FontFace>);
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void fireLoadingEvent();
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void fireDoneEventIfPossible();
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bool resolveFontStyle(const String&, Font&);
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void handlePendingEventsAndPromisesSoon();
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void handlePendingEventsAndPromises();
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const ListHashSet<RefPtr<FontFace> >& cssConnectedFontFaceList() const;
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bool isCSSConnectedFontFace(FontFace*) const;
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HashSet<RefPtr<FontFace> > m_loadingFonts;
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bool m_shouldFireLoadingEvent;
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Vector<OwnPtr<FontsReadyPromiseResolver> > m_readyResolvers;
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FontFaceArray m_loadedFonts;
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FontFaceArray m_failedFonts;
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ListHashSet<RefPtr<FontFace> > m_nonCSSConnectedFaces;
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AsyncMethodRunner<FontFaceSet> m_asyncRunner;
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FontLoadHistogram m_histogram;
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};
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} // namespace blink
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#endif // FontFaceSet_h
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