gecko/content/media/TextTrackList.cpp
Rick Eyre 6e23c29cb6 Bug 865407 - Part 2: Change TextTrackList::RemoveTextTrack() to receive a pointer r=rillian
The only code using this is TextTrackManager::RemoveTextTrack() which
receives a non-const pointer.
2013-10-21 07:15:00 -07:00

137 lines
3.5 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"
#include "mozilla/dom/TrackEvent.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED_2(TextTrackList,
nsDOMEventTargetHelper,
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(HTMLMediaElement* aMediaElement,
TextTrackKind aKind,
const nsAString& aLabel,
const nsAString& aLanguage)
{
nsRefPtr<TextTrack> track = new TextTrack(mGlobal, aMediaElement, aKind,
aLabel, aLanguage);
if (mTextTracks.AppendElement(track)) {
CreateAndDispatchTrackEventRunner(track, NS_LITERAL_STRING("addtrack"));
}
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(TextTrack* aTrack)
{
if (mTextTracks.RemoveElement(aTrack)) {
CreateAndDispatchTrackEventRunner(aTrack, NS_LITERAL_STRING("removetrack"));
}
}
void
TextTrackList::DidSeek()
{
for (uint32_t i = 0; i < mTextTracks.Length(); i++) {
mTextTracks[i]->SetDirty();
}
}
class TrackEventRunner MOZ_FINAL: public nsRunnable
{
public:
TrackEventRunner(TextTrackList* aList, TrackEvent* aEvent)
: mList(aList)
, mEvent(aEvent)
{}
NS_IMETHOD Run() MOZ_OVERRIDE
{
return mList->DispatchTrackEvent(mEvent);
}
private:
nsRefPtr<TextTrackList> mList;
nsRefPtr<TrackEvent> mEvent;
};
nsresult
TextTrackList::DispatchTrackEvent(TrackEvent* aEvent)
{
return DispatchTrustedEvent(aEvent);
}
void
TextTrackList::CreateAndDispatchTrackEventRunner(TextTrack* aTrack,
const nsAString& aEventName)
{
TrackEventInit eventInit;
eventInit.mBubbles = false;
eventInit.mCancelable = false;
eventInit.mTrack = aTrack;
nsRefPtr<TrackEvent> trackEvent =
TrackEvent::Constructor(this, aEventName, eventInit);
// Dispatch the TrackEvent asynchronously.
nsCOMPtr<nsIRunnable> event = new TrackEventRunner(this, trackEvent);
NS_DispatchToMainThread(event, NS_DISPATCH_NORMAL);
}
} // namespace dom
} // namespace mozilla