#pragma once
#include "ActiveDOMObject.h"
#include "CSSFontFaceSet.h"
#include "EventTarget.h"
#include "JSDOMPromiseDeferred.h"
namespace WebCore {
class DOMCoreException;
class FontFaceSet final : public RefCounted<FontFaceSet>, private CSSFontFaceSetClient, public EventTargetWithInlineData, private ActiveDOMObject {
public:
static Ref<FontFaceSet> create(Document&, const Vector<RefPtr<FontFace>>& initialFaces);
static Ref<FontFaceSet> create(Document&, CSSFontFaceSet& backing);
virtual ~FontFaceSet();
bool has(FontFace&) const;
size_t size() const;
FontFaceSet& add(FontFace&);
bool remove(FontFace&);
void clear();
using LoadPromise = DOMPromiseDeferred<IDLSequence<IDLInterface<FontFace>>>;
void load(const String& font, const String& text, LoadPromise&&);
ExceptionOr<bool> check(const String& font, const String& text);
enum class LoadStatus { Loading, Loaded };
LoadStatus status() const;
using ReadyPromise = DOMPromiseDeferred<IDLInterface<FontFaceSet>>;
void registerReady(ReadyPromise&&);
CSSFontFaceSet& backing() { return m_backing; }
class Iterator {
public:
explicit Iterator(FontFaceSet&);
RefPtr<FontFace> next();
private:
Ref<FontFaceSet> m_target;
size_t m_index { 0 }; };
Iterator createIterator() { return Iterator(*this); }
using RefCounted::ref;
using RefCounted::deref;
private:
struct PendingPromise : RefCounted<PendingPromise> {
static Ref<PendingPromise> create(LoadPromise&& promise)
{
return adoptRef(*new PendingPromise(WTFMove(promise)));
}
~PendingPromise();
private:
PendingPromise(LoadPromise&&);
public:
Vector<RefPtr<FontFace>> faces;
LoadPromise promise;
bool hasReachedTerminalState { false };
};
FontFaceSet(Document&, const Vector<RefPtr<FontFace>>&);
FontFaceSet(Document&, CSSFontFaceSet&);
void startedLoading() final;
void completedLoading() final;
void faceFinished(CSSFontFace&, CSSFontFace::Status) final;
const char* activeDOMObjectName() const final { return "FontFaceSet"; }
bool canSuspendForDocumentSuspension() const final;
EventTargetInterface eventTargetInterface() const final { return FontFaceSetEventTargetInterfaceType; }
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
Ref<CSSFontFaceSet> m_backing;
HashMap<RefPtr<FontFace>, Vector<Ref<PendingPromise>>> m_pendingPromises;
std::optional<ReadyPromise> m_promise;
bool m_isReady { true };
};
}