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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include "mozilla/dom/FontFaceSetIterator.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION(FontFaceSetIterator, mFontFaceSet)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(FontFaceSetIterator, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(FontFaceSetIterator, Release)
FontFaceSetIterator::FontFaceSetIterator(FontFaceSet* aFontFaceSet,
bool aIsKeyAndValue)
: mFontFaceSet(aFontFaceSet)
, mNextIndex(0)
, mIsKeyAndValue(aIsKeyAndValue)
{
MOZ_COUNT_CTOR(FontFaceSetIterator);
}
FontFaceSetIterator::~FontFaceSetIterator()
{
MOZ_COUNT_DTOR(FontFaceSetIterator);
}
bool
FontFaceSetIterator::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto,
JS::MutableHandle<JSObject*> aReflector)
{
return FontFaceSetIteratorBinding::Wrap(aCx, this, aGivenProto, aReflector);
}
void
FontFaceSetIterator::Next(JSContext* aCx, FontFaceSetIteratorResult& aResult,
ErrorResult& aRv)
{
if (!mFontFaceSet) {
aResult.mDone = true;
return;
}
FontFace* face = mFontFaceSet->GetFontFaceAt(mNextIndex++);
if (!face) {
aResult.mValue.setUndefined();
aResult.mDone = true;
mFontFaceSet = nullptr;
return;
}
JS::Rooted<JS::Value> value(aCx);
if (!ToJSValue(aCx, face, &value)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
if (mIsKeyAndValue) {
JS::AutoValueArray<2> values(aCx);
values[0].set(value);
values[1].set(value);
JS::Rooted<JSObject*> array(aCx);
array = JS_NewArrayObject(aCx, values);
if (array) {
aResult.mValue.setObject(*array);
}
} else {
aResult.mValue = value;
}
aResult.mDone = false;
}
} // namespace dom
} // namespace mozilla
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