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