| /* |
| * 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/v8/ScriptPromise.h" |
| #include "core/css/FontFace.h" |
| #include "core/dom/ActiveDOMObject.h" |
| #include "core/events/EventListener.h" |
| #include "core/events/EventNames.h" |
| #include "core/events/EventTarget.h" |
| #include "core/platform/Timer.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 WebCore { |
| |
| class CSSFontFaceSource; |
| class Dictionary; |
| class Document; |
| class Event; |
| class ExceptionState; |
| class Font; |
| class FontResource; |
| class FontsReadyPromiseResolver; |
| class LoadFontPromiseResolver; |
| class ScriptExecutionContext; |
| |
| class FontFaceSet : public RefCounted<FontFaceSet>, public ActiveDOMObject, public EventTarget { |
| public: |
| static PassRefPtr<FontFaceSet> create(Document* document) |
| { |
| return adoptRef<FontFaceSet>(new FontFaceSet(document)); |
| } |
| virtual ~FontFaceSet(); |
| |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(loading); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(loadingdone); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(loadingerror); |
| |
| Vector<RefPtr<FontFace> > match(const String& font, const String& text, ExceptionState&); |
| bool check(const String& font, const String& text, ExceptionState&); |
| ScriptPromise load(const String& font, const String& text, ExceptionState&); |
| ScriptPromise ready(); |
| |
| AtomicString status() const; |
| |
| virtual ScriptExecutionContext* scriptExecutionContext() const; |
| virtual const AtomicString& interfaceName() const; |
| |
| using RefCounted<FontFaceSet>::ref; |
| using RefCounted<FontFaceSet>::deref; |
| |
| Document* document() const; |
| |
| void didLayout(); |
| void beginFontLoading(FontFace*); |
| void fontLoaded(FontFace*); |
| void loadError(FontFace*); |
| void scheduleResolve(LoadFontPromiseResolver*); |
| |
| private: |
| class FontLoadHistogram { |
| public: |
| FontLoadHistogram() : m_count(0), m_recorded(false) { } |
| void incrementCount() { m_count++; } |
| void record(); |
| |
| private: |
| int m_count; |
| bool m_recorded; |
| }; |
| |
| FontFaceSet(Document*); |
| |
| virtual void refEventTarget() { ref(); } |
| virtual void derefEventTarget() { deref(); } |
| virtual EventTargetData* eventTargetData(); |
| virtual EventTargetData* ensureEventTargetData(); |
| |
| void scheduleEvent(PassRefPtr<Event>); |
| void queueDoneEvent(FontFace*); |
| void firePendingEvents(); |
| void resolvePendingLoadPromises(); |
| void fireDoneEventIfPossible(); |
| bool resolveFontStyle(const String&, Font&); |
| void timerFired(Timer<FontFaceSet>*); |
| |
| EventTargetData m_eventTargetData; |
| unsigned m_loadingCount; |
| Vector<RefPtr<Event> > m_pendingEvents; |
| Vector<RefPtr<LoadFontPromiseResolver> > m_pendingLoadResolvers; |
| Vector<OwnPtr<FontsReadyPromiseResolver> > m_readyResolvers; |
| FontFaceArray m_loadedFonts; |
| FontFaceArray m_failedFonts; |
| bool m_shouldFireDoneEvent; |
| Timer<FontFaceSet> m_timer; |
| FontLoadHistogram m_histogram; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // FontFaceSet_h |