forked from mirrors/gecko-dev
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/FontFaceSetIterator.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION(FontFaceSetIterator, mFontFaceSet)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(FontFaceSetIterator, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(FontFaceSetIterator, Release)
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FontFaceSetIterator::FontFaceSetIterator(FontFaceSet* aFontFaceSet,
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bool aIsKeyAndValue)
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: mFontFaceSet(aFontFaceSet)
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, mNextIndex(0)
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, mIsKeyAndValue(aIsKeyAndValue)
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{
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MOZ_COUNT_CTOR(FontFaceSetIterator);
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}
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FontFaceSetIterator::~FontFaceSetIterator()
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{
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MOZ_COUNT_DTOR(FontFaceSetIterator);
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}
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bool
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FontFaceSetIterator::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto,
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JS::MutableHandle<JSObject*> aReflector)
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{
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return FontFaceSetIterator_Binding::Wrap(aCx, this, aGivenProto, aReflector);
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}
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void
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FontFaceSetIterator::Next(JSContext* aCx, FontFaceSetIteratorResult& aResult,
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ErrorResult& aRv)
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{
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if (!mFontFaceSet) {
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aResult.mDone = true;
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return;
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}
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FontFace* face = mFontFaceSet->GetFontFaceAt(mNextIndex++);
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if (!face) {
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aResult.mValue.setUndefined();
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aResult.mDone = true;
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mFontFaceSet = nullptr;
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return;
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}
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JS::Rooted<JS::Value> value(aCx);
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if (!ToJSValue(aCx, face, &value)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return;
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}
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if (mIsKeyAndValue) {
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JS::AutoValueArray<2> values(aCx);
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values[0].set(value);
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values[1].set(value);
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JS::Rooted<JSObject*> array(aCx);
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array = JS_NewArrayObject(aCx, values);
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if (array) {
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aResult.mValue.setObject(*array);
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}
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} else {
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aResult.mValue = value;
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}
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aResult.mDone = false;
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}
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} // namespace dom
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} // namespace mozilla
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