1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/TextTrackList.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,210 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "mozilla/dom/TextTrackList.h"
1.10 +#include "mozilla/dom/TextTrackListBinding.h"
1.11 +#include "mozilla/dom/TrackEvent.h"
1.12 +#include "nsThreadUtils.h"
1.13 +#include "mozilla/dom/TextTrackCue.h"
1.14 +#include "mozilla/dom/TextTrackManager.h"
1.15 +
1.16 +namespace mozilla {
1.17 +namespace dom {
1.18 +
1.19 +NS_IMPL_CYCLE_COLLECTION_INHERITED(TextTrackList,
1.20 + DOMEventTargetHelper,
1.21 + mTextTracks,
1.22 + mTextTrackManager)
1.23 +
1.24 +NS_IMPL_ADDREF_INHERITED(TextTrackList, DOMEventTargetHelper)
1.25 +NS_IMPL_RELEASE_INHERITED(TextTrackList, DOMEventTargetHelper)
1.26 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TextTrackList)
1.27 +NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
1.28 +
1.29 +TextTrackList::TextTrackList(nsPIDOMWindow* aOwnerWindow)
1.30 + : DOMEventTargetHelper(aOwnerWindow)
1.31 +{
1.32 +}
1.33 +
1.34 +TextTrackList::TextTrackList(nsPIDOMWindow* aOwnerWindow,
1.35 + TextTrackManager* aTextTrackManager)
1.36 + : DOMEventTargetHelper(aOwnerWindow)
1.37 + , mTextTrackManager(aTextTrackManager)
1.38 +{
1.39 +}
1.40 +
1.41 +void
1.42 +TextTrackList::UpdateAndGetShowingCues(nsTArray<nsRefPtr<TextTrackCue> >& aCues)
1.43 +{
1.44 + nsTArray< nsRefPtr<TextTrackCue> > cues;
1.45 + for (uint32_t i = 0; i < Length(); i++) {
1.46 + TextTrackMode mode = mTextTracks[i]->Mode();
1.47 + // If the mode is hidden then we just need to update the active cue list,
1.48 + // we don't need to show it on the video.
1.49 + if (mode == TextTrackMode::Hidden) {
1.50 + mTextTracks[i]->UpdateActiveCueList();
1.51 + } else if (mode == TextTrackMode::Showing) {
1.52 + // If the mode is showing then we need to update the cue list and show it
1.53 + // on the video. GetActiveCueArray() calls UpdateActiveCueList() so we
1.54 + // don't need to call it explicitly.
1.55 + mTextTracks[i]->GetActiveCueArray(cues);
1.56 + aCues.AppendElements(cues);
1.57 + }
1.58 + }
1.59 +}
1.60 +
1.61 +JSObject*
1.62 +TextTrackList::WrapObject(JSContext* aCx)
1.63 +{
1.64 + return TextTrackListBinding::Wrap(aCx, this);
1.65 +}
1.66 +
1.67 +TextTrack*
1.68 +TextTrackList::IndexedGetter(uint32_t aIndex, bool& aFound)
1.69 +{
1.70 + aFound = aIndex < mTextTracks.Length();
1.71 + return aFound ? mTextTracks[aIndex] : nullptr;
1.72 +}
1.73 +
1.74 +TextTrack*
1.75 +TextTrackList::operator[](uint32_t aIndex)
1.76 +{
1.77 + return mTextTracks.SafeElementAt(aIndex, nullptr);
1.78 +}
1.79 +
1.80 +already_AddRefed<TextTrack>
1.81 +TextTrackList::AddTextTrack(TextTrackKind aKind,
1.82 + const nsAString& aLabel,
1.83 + const nsAString& aLanguage,
1.84 + TextTrackMode aMode,
1.85 + TextTrackReadyState aReadyState,
1.86 + TextTrackSource aTextTrackSource,
1.87 + const CompareTextTracks& aCompareTT)
1.88 +{
1.89 + nsRefPtr<TextTrack> track = new TextTrack(GetOwner(), this, aKind, aLabel,
1.90 + aLanguage, aMode, aReadyState,
1.91 + aTextTrackSource);
1.92 + AddTextTrack(track, aCompareTT);
1.93 + return track.forget();
1.94 +}
1.95 +
1.96 +void
1.97 +TextTrackList::AddTextTrack(TextTrack* aTextTrack,
1.98 + const CompareTextTracks& aCompareTT)
1.99 +{
1.100 + if (mTextTracks.InsertElementSorted(aTextTrack, aCompareTT)) {
1.101 + aTextTrack->SetTextTrackList(this);
1.102 + CreateAndDispatchTrackEventRunner(aTextTrack, NS_LITERAL_STRING("addtrack"));
1.103 + }
1.104 +}
1.105 +
1.106 +TextTrack*
1.107 +TextTrackList::GetTrackById(const nsAString& aId)
1.108 +{
1.109 + nsAutoString id;
1.110 + for (uint32_t i = 0; i < Length(); i++) {
1.111 + mTextTracks[i]->GetId(id);
1.112 + if (aId.Equals(id)) {
1.113 + return mTextTracks[i];
1.114 + }
1.115 + }
1.116 + return nullptr;
1.117 +}
1.118 +
1.119 +void
1.120 +TextTrackList::RemoveTextTrack(TextTrack* aTrack)
1.121 +{
1.122 + if (mTextTracks.RemoveElement(aTrack)) {
1.123 + CreateAndDispatchTrackEventRunner(aTrack, NS_LITERAL_STRING("removetrack"));
1.124 + }
1.125 +}
1.126 +
1.127 +void
1.128 +TextTrackList::DidSeek()
1.129 +{
1.130 + for (uint32_t i = 0; i < mTextTracks.Length(); i++) {
1.131 + mTextTracks[i]->SetDirty();
1.132 + }
1.133 +}
1.134 +
1.135 +class TrackEventRunner MOZ_FINAL: public nsRunnable
1.136 +{
1.137 +public:
1.138 + TrackEventRunner(TextTrackList* aList, nsIDOMEvent* aEvent)
1.139 + : mList(aList)
1.140 + , mEvent(aEvent)
1.141 + {}
1.142 +
1.143 + NS_IMETHOD Run() MOZ_OVERRIDE
1.144 + {
1.145 + return mList->DispatchTrackEvent(mEvent);
1.146 + }
1.147 +
1.148 +private:
1.149 + nsRefPtr<TextTrackList> mList;
1.150 + nsRefPtr<nsIDOMEvent> mEvent;
1.151 +};
1.152 +
1.153 +nsresult
1.154 +TextTrackList::DispatchTrackEvent(nsIDOMEvent* aEvent)
1.155 +{
1.156 + return DispatchTrustedEvent(aEvent);
1.157 +}
1.158 +
1.159 +void
1.160 +TextTrackList::CreateAndDispatchChangeEvent()
1.161 +{
1.162 + nsCOMPtr<nsIDOMEvent> event;
1.163 + nsresult rv = NS_NewDOMEvent(getter_AddRefs(event), this, nullptr, nullptr);
1.164 + if (NS_FAILED(rv)) {
1.165 + NS_WARNING("Failed to create the error event!");
1.166 + return;
1.167 + }
1.168 +
1.169 + rv = event->InitEvent(NS_LITERAL_STRING("change"), false, false);
1.170 + if (NS_FAILED(rv)) {
1.171 + NS_WARNING("Failed to init the change event!");
1.172 + return;
1.173 + }
1.174 +
1.175 + event->SetTrusted(true);
1.176 +
1.177 + nsCOMPtr<nsIRunnable> eventRunner = new TrackEventRunner(this, event);
1.178 + NS_DispatchToMainThread(eventRunner, NS_DISPATCH_NORMAL);
1.179 +}
1.180 +
1.181 +void
1.182 +TextTrackList::CreateAndDispatchTrackEventRunner(TextTrack* aTrack,
1.183 + const nsAString& aEventName)
1.184 +{
1.185 + TrackEventInit eventInit;
1.186 + eventInit.mBubbles = false;
1.187 + eventInit.mCancelable = false;
1.188 + eventInit.mTrack = aTrack;
1.189 + nsRefPtr<TrackEvent> event =
1.190 + TrackEvent::Constructor(this, aEventName, eventInit);
1.191 +
1.192 + // Dispatch the TrackEvent asynchronously.
1.193 + nsCOMPtr<nsIRunnable> eventRunner = new TrackEventRunner(this, event);
1.194 + NS_DispatchToMainThread(eventRunner, NS_DISPATCH_NORMAL);
1.195 +}
1.196 +
1.197 +HTMLMediaElement*
1.198 +TextTrackList::GetMediaElement()
1.199 +{
1.200 + if (mTextTrackManager) {
1.201 + return mTextTrackManager->mMediaElement;
1.202 + }
1.203 + return nullptr;
1.204 +}
1.205 +
1.206 +void
1.207 +TextTrackList::SetTextTrackManager(TextTrackManager* aTextTrackManager)
1.208 +{
1.209 + mTextTrackManager = aTextTrackManager;
1.210 +}
1.211 +
1.212 +} // namespace dom
1.213 +} // namespace mozilla
