gecko/content/media/TextTrackList.cpp
Rick Eyre 0f5638b7d3 Bug 882706 - Implement TextTrackList::GetTrackById(). r=rillian
I've also added an Id attribute to the TextTrack implementation as it wasn't
there yet.
2013-07-09 11:44:35 -04:00

78 lines
2.0 KiB
C++

/* -*- 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/TextTrackList.h"
#include "mozilla/dom/TextTrackListBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(TextTrackList, mGlobal, mTextTracks)
NS_IMPL_ADDREF_INHERITED(TextTrackList, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(TextTrackList, nsDOMEventTargetHelper)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TextTrackList)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
TextTrackList::TextTrackList(nsISupports* aGlobal) : mGlobal(aGlobal)
{
SetIsDOMBinding();
}
void
TextTrackList::Update(double aTime)
{
uint32_t length = Length(), i;
for (i = 0; i < length; i++) {
mTextTracks[i]->Update(aTime);
}
}
JSObject*
TextTrackList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
{
return TextTrackListBinding::Wrap(aCx, aScope, this);
}
TextTrack*
TextTrackList::IndexedGetter(uint32_t aIndex, bool& aFound)
{
aFound = aIndex < mTextTracks.Length();
return aFound ? mTextTracks[aIndex] : nullptr;
}
already_AddRefed<TextTrack>
TextTrackList::AddTextTrack(TextTrackKind aKind,
const nsAString& aLabel,
const nsAString& aLanguage)
{
nsRefPtr<TextTrack> track = new TextTrack(mGlobal, aKind, aLabel, aLanguage);
mTextTracks.AppendElement(track);
// TODO: dispatch addtrack event
return track.forget();
}
TextTrack*
TextTrackList::GetTrackById(const nsAString& aId)
{
nsAutoString id;
for (uint32_t i = 0; i < Length(); i++) {
mTextTracks[i]->GetId(id);
if (aId.Equals(id)) {
return mTextTracks[i];
}
}
return nullptr;
}
void
TextTrackList::RemoveTextTrack(const TextTrack& aTrack)
{
mTextTracks.RemoveElement(&aTrack);
}
} // namespace dom
} // namespace mozilla