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/*
* Copyright (C) 2016 Apple 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. ``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
* 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 "ActiveDOMObject.h"
#include "CSSFontFaceSet.h"
#include "DOMCoreException.h"
#include "EventTarget.h"
#include "JSDOMPromise.h"
#include <wtf/Optional.h>
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class Document;
class FontFace;
class FontFaceSet final : public RefCounted<FontFaceSet>, public CSSFontFaceSetClient, public EventTargetWithInlineData, public ActiveDOMObject {
public:
static Ref<FontFaceSet> create(JSC::ExecState& execState, Document& document, const Vector<RefPtr<FontFace>>& initialFaces)
{
Ref<FontFaceSet> result = adoptRef(*new FontFaceSet(execState, document, initialFaces));
result->suspendIfNeeded();
return result;
}
virtual ~FontFaceSet();
bool has(FontFace*) const;
size_t size() const;
FontFaceSet& add(FontFace*);
bool remove(FontFace*);
void clear();
void load(const String& font, DeferredWrapper&& promise, ExceptionCode& ec) { load(font, String(" ", String::ConstructFromLiteral), WTFMove(promise), ec); }
void load(const String& font, const String& text, DeferredWrapper&& promise, ExceptionCode&);
bool check(const String& font, ExceptionCode& ec) { return check(font, String(" ", String::ConstructFromLiteral), ec); }
bool check(const String& font, const String& text, ExceptionCode&);
String status() const;
typedef DOMPromise<FontFaceSet&, DOMCoreException&> Promise;
Promise& promise(JSC::ExecState&);
class Iterator {
public:
explicit Iterator(FontFaceSet&);
using Key = RefPtr<FontFace>;
using Value = RefPtr<FontFace>;
bool next(Key& nextKey, Value& nextValue);
private:
Ref<FontFaceSet> m_target;
size_t m_index { 0 };
};
Iterator createIterator() { return Iterator(*this); }
using RefCounted<FontFaceSet>::ref;
using RefCounted<FontFaceSet>::deref;
private:
struct PendingPromise : public RefCounted<PendingPromise> {
typedef DOMPromise<Vector<RefPtr<FontFace>>&, DOMCoreException&> Promise;
static Ref<PendingPromise> create(Promise&& promise)
{
return adoptRef(*new PendingPromise(WTFMove(promise)));
}
~PendingPromise();
private:
PendingPromise(Promise&&);
public:
Vector<RefPtr<FontFace>> faces;
Promise promise;
};
FontFaceSet(JSC::ExecState&, Document&, const Vector<RefPtr<FontFace>>&);
void fulfillPromise();
// CSSFontFaceSetClient
virtual void startedLoading() override;
virtual void completedLoading() override;
virtual void faceFinished(CSSFontFace&, CSSFontFace::Status) override;
// ActiveDOMObject
virtual const char* activeDOMObjectName() const override { return "FontFaceSet"; }
virtual bool canSuspendForDocumentSuspension() const override;
// EventTarget
virtual EventTargetInterface eventTargetInterface() const override { return FontFaceSetEventTargetInterfaceType; }
virtual ScriptExecutionContext* scriptExecutionContext() const override { return ActiveDOMObject::scriptExecutionContext(); }
virtual void refEventTarget() override { ref(); }
virtual void derefEventTarget() override { deref(); }
CSSFontFaceSet m_backing;
HashMap<RefPtr<FontFace>, Vector<Ref<PendingPromise>>> m_pendingPromises;
Optional<Promise> m_promise;
};
}
#endif
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