/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_FontFace_h
#define mozilla_dom_FontFace_h
#include "mozilla/dom/FontFaceBinding.h"
#include "mozilla/GlobalTeardownObserver.h"
#include "mozilla/ServoStyleConsts.h"
#include "gfxUserFontSet.h"
#include "nsWrapperCache.h"
class gfxFontFaceBufferSource;
class nsIGlobalObject;
namespace mozilla {
struct CSSFontFaceDescriptors;
class PostTraversalTask;
struct StyleLockedFontFaceRule;
namespace dom {
class CSSFontFaceRule;
class FontFaceBufferSource;
struct FontFaceDescriptors;
class FontFaceImpl;
class FontFaceSet;
class FontFaceSetImpl;
class Promise;
class UTF8StringOrArrayBufferOrArrayBufferView;
}
// namespace dom
}
// namespace mozilla
namespace mozilla::dom {
class FontFace final :
public GlobalTeardownObserver,
public nsWrapperCache {
friend class mozilla::PostTraversalTask;
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(FontFace)
void DisconnectFromOwner() final;
nsIGlobalObject* GetParentObject()
const {
return GetOwnerGlobal(); }
JSObject* WrapObject(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<FontFace> CreateForRule(
nsIGlobalObject* aGlobal, FontFaceSet* aFontFaceSet,
StyleLockedFontFaceRule* aRule);
// Web IDL
static already_AddRefed<FontFace> Constructor(
const GlobalObject& aGlobal,
const nsACString& aFamily,
const UTF8StringOrArrayBufferOrArrayBufferView& aSource,
const FontFaceDescriptors& aDescriptors, ErrorResult& aRV);
void GetFamily(nsACString& aResult);
void SetFamily(
const nsACString& aValue, ErrorResult& aRv);
void GetStyle(nsACString& aResult);
void SetStyle(
const nsACString& aValue, ErrorResult& aRv);
void GetWeight(nsACString& aResult);
void SetWeight(
const nsACString& aValue, ErrorResult& aRv);
void GetStretch(nsACString& aResult);
void SetStretch(
const nsACString& aValue, ErrorResult& aRv);
void GetUnicodeRange(nsACString& aResult);
void SetUnicodeRange(
const nsACString& aValue, ErrorResult& aRv);
void GetVariant(nsACString& aResult);
void SetVariant(
const nsACString& aValue, ErrorResult& aRv);
void GetFeatureSettings(nsACString& aResult);
void SetFeatureSettings(
const nsACString& aValue, ErrorResult& aRv);
void GetVariationSettings(nsACString& aResult);
void SetVariationSettings(
const nsACString& aValue, ErrorResult& aRv);
void GetDisplay(nsACString& aResult);
void SetDisplay(
const nsACString& aValue, ErrorResult& aRv);
void GetAscentOverride(nsACString& aResult);
void SetAscentOverride(
const nsACString& aValue, ErrorResult& aRv);
void GetDescentOverride(nsACString& aResult);
void SetDescentOverride(
const nsACString& aValue, ErrorResult& aRv);
void GetLineGapOverride(nsACString& aResult);
void SetLineGapOverride(
const nsACString& aValue, ErrorResult& aRv);
void GetSizeAdjust(nsACString& aResult);
void SetSizeAdjust(
const nsACString& aValue, ErrorResult& aRv);
FontFaceLoadStatus Status();
Promise* Load(ErrorResult& aRv);
Promise* GetLoaded(ErrorResult& aRv);
FontFaceImpl* GetImpl()
const {
return mImpl; }
void Destroy();
void MaybeResolve();
void MaybeReject(nsresult aResult);
private:
explicit FontFace(nsIGlobalObject* aParent);
~FontFace();
/**
* Returns and takes ownership of the buffer storing the font data.
*/
void TakeBuffer(uint8_t*& aBuffer, uint32_t& aLength);
// Creates mLoaded if it doesn't already exist. It may immediately resolve or
// reject mLoaded based on mStatus and mLoadedRejection.
void EnsurePromise();
RefPtr<FontFaceImpl> mImpl;
// A Promise that is fulfilled once the font represented by this FontFace is
// loaded, and is rejected if the load fails. This promise is created lazily
// when JS asks for it.
RefPtr<Promise> mLoaded;
// Saves the rejection code for mLoaded if mLoaded hasn't been created yet.
nsresult mLoadedRejection;
};
}
// namespace mozilla::dom
#endif // !defined(mozilla_dom_FontFace_h)
