forked from mirrors/gecko-dev
ed3da455ae
Backed out changeset e9ef32fa2f2e (bug 1542807) Backed out changeset 8fa0cb199975 (bug 1542807) Backed out changeset 38daf64afe59 (bug 1542807) Backed out changeset e3aee052c495 (bug 1542807) Backed out changeset a71056d4c7cc (bug 1542807) Backed out changeset cf91e7d0a37f (bug 1542807) Backed out changeset eee949e5fd67 (bug 1542807)
78 lines
2.2 KiB
C++
78 lines
2.2 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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#include "js/Array.h" // JS::NewArrayObject
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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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MOZ_COUNT_CTOR(FontFaceSetIterator);
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}
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FontFaceSetIterator::~FontFaceSetIterator() {
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MOZ_COUNT_DTOR(FontFaceSetIterator);
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}
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bool FontFaceSetIterator::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto,
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JS::MutableHandle<JSObject*> aReflector) {
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return FontFaceSetIterator_Binding::Wrap(aCx, this, aGivenProto, aReflector);
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}
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void FontFaceSetIterator::Next(JSContext* aCx,
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FontFaceSetIteratorResult& aResult,
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ErrorResult& aRv) {
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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::RootedValueArray<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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