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content/media/TextTrackList.cpp@44a2da4a2ab2 (annotated)

content/media/TextTrackList.cpp

Fri, 16 Jan 2015 04:50:19 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 04:50:19 +0100
branch
TOR_BUG_9701
changeset 13
44a2da4a2ab2
permissions
-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "mozilla/dom/TextTrackList.h"
michael@0 7 #include "mozilla/dom/TextTrackListBinding.h"
michael@0 8 #include "mozilla/dom/TrackEvent.h"
michael@0 9 #include "nsThreadUtils.h"
michael@0 10 #include "mozilla/dom/TextTrackCue.h"
michael@0 11 #include "mozilla/dom/TextTrackManager.h"
michael@0 12
michael@0 13 namespace mozilla {
michael@0 14 namespace dom {
michael@0 15
michael@0 16 NS_IMPL_CYCLE_COLLECTION_INHERITED(TextTrackList,
michael@0 17 DOMEventTargetHelper,
michael@0 18 mTextTracks,
michael@0 19 mTextTrackManager)
michael@0 20
michael@0 21 NS_IMPL_ADDREF_INHERITED(TextTrackList, DOMEventTargetHelper)
michael@0 22 NS_IMPL_RELEASE_INHERITED(TextTrackList, DOMEventTargetHelper)
michael@0 23 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TextTrackList)
michael@0 24 NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
michael@0 25
michael@0 26 TextTrackList::TextTrackList(nsPIDOMWindow* aOwnerWindow)
michael@0 27 : DOMEventTargetHelper(aOwnerWindow)
michael@0 28 {
michael@0 29 }
michael@0 30
michael@0 31 TextTrackList::TextTrackList(nsPIDOMWindow* aOwnerWindow,
michael@0 32 TextTrackManager* aTextTrackManager)
michael@0 33 : DOMEventTargetHelper(aOwnerWindow)
michael@0 34 , mTextTrackManager(aTextTrackManager)
michael@0 35 {
michael@0 36 }
michael@0 37
michael@0 38 void
michael@0 39 TextTrackList::UpdateAndGetShowingCues(nsTArray<nsRefPtr<TextTrackCue> >& aCues)
michael@0 40 {
michael@0 41 nsTArray< nsRefPtr<TextTrackCue> > cues;
michael@0 42 for (uint32_t i = 0; i < Length(); i++) {
michael@0 43 TextTrackMode mode = mTextTracks[i]->Mode();
michael@0 44 // If the mode is hidden then we just need to update the active cue list,
michael@0 45 // we don't need to show it on the video.
michael@0 46 if (mode == TextTrackMode::Hidden) {
michael@0 47 mTextTracks[i]->UpdateActiveCueList();
michael@0 48 } else if (mode == TextTrackMode::Showing) {
michael@0 49 // If the mode is showing then we need to update the cue list and show it
michael@0 50 // on the video. GetActiveCueArray() calls UpdateActiveCueList() so we
michael@0 51 // don't need to call it explicitly.
michael@0 52 mTextTracks[i]->GetActiveCueArray(cues);
michael@0 53 aCues.AppendElements(cues);
michael@0 54 }
michael@0 55 }
michael@0 56 }
michael@0 57
michael@0 58 JSObject*
michael@0 59 TextTrackList::WrapObject(JSContext* aCx)
michael@0 60 {
michael@0 61 return TextTrackListBinding::Wrap(aCx, this);
michael@0 62 }
michael@0 63
michael@0 64 TextTrack*
michael@0 65 TextTrackList::IndexedGetter(uint32_t aIndex, bool& aFound)
michael@0 66 {
michael@0 67 aFound = aIndex < mTextTracks.Length();
michael@0 68 return aFound ? mTextTracks[aIndex] : nullptr;
michael@0 69 }
michael@0 70
michael@0 71 TextTrack*
michael@0 72 TextTrackList::operator[](uint32_t aIndex)
michael@0 73 {
michael@0 74 return mTextTracks.SafeElementAt(aIndex, nullptr);
michael@0 75 }
michael@0 76
michael@0 77 already_AddRefed<TextTrack>
michael@0 78 TextTrackList::AddTextTrack(TextTrackKind aKind,
michael@0 79 const nsAString& aLabel,
michael@0 80 const nsAString& aLanguage,
michael@0 81 TextTrackMode aMode,
michael@0 82 TextTrackReadyState aReadyState,
michael@0 83 TextTrackSource aTextTrackSource,
michael@0 84 const CompareTextTracks& aCompareTT)
michael@0 85 {
michael@0 86 nsRefPtr<TextTrack> track = new TextTrack(GetOwner(), this, aKind, aLabel,
michael@0 87 aLanguage, aMode, aReadyState,
michael@0 88 aTextTrackSource);
michael@0 89 AddTextTrack(track, aCompareTT);
michael@0 90 return track.forget();
michael@0 91 }
michael@0 92
michael@0 93 void
michael@0 94 TextTrackList::AddTextTrack(TextTrack* aTextTrack,
michael@0 95 const CompareTextTracks& aCompareTT)
michael@0 96 {
michael@0 97 if (mTextTracks.InsertElementSorted(aTextTrack, aCompareTT)) {
michael@0 98 aTextTrack->SetTextTrackList(this);
michael@0 99 CreateAndDispatchTrackEventRunner(aTextTrack, NS_LITERAL_STRING("addtrack"));
michael@0 100 }
michael@0 101 }
michael@0 102
michael@0 103 TextTrack*
michael@0 104 TextTrackList::GetTrackById(const nsAString& aId)
michael@0 105 {
michael@0 106 nsAutoString id;
michael@0 107 for (uint32_t i = 0; i < Length(); i++) {
michael@0 108 mTextTracks[i]->GetId(id);
michael@0 109 if (aId.Equals(id)) {
michael@0 110 return mTextTracks[i];
michael@0 111 }
michael@0 112 }
michael@0 113 return nullptr;
michael@0 114 }
michael@0 115
michael@0 116 void
michael@0 117 TextTrackList::RemoveTextTrack(TextTrack* aTrack)
michael@0 118 {
michael@0 119 if (mTextTracks.RemoveElement(aTrack)) {
michael@0 120 CreateAndDispatchTrackEventRunner(aTrack, NS_LITERAL_STRING("removetrack"));
michael@0 121 }
michael@0 122 }
michael@0 123
michael@0 124 void
michael@0 125 TextTrackList::DidSeek()
michael@0 126 {
michael@0 127 for (uint32_t i = 0; i < mTextTracks.Length(); i++) {
michael@0 128 mTextTracks[i]->SetDirty();
michael@0 129 }
michael@0 130 }
michael@0 131
michael@0 132 class TrackEventRunner MOZ_FINAL: public nsRunnable
michael@0 133 {
michael@0 134 public:
michael@0 135 TrackEventRunner(TextTrackList* aList, nsIDOMEvent* aEvent)
michael@0 136 : mList(aList)
michael@0 137 , mEvent(aEvent)
michael@0 138 {}
michael@0 139
michael@0 140 NS_IMETHOD Run() MOZ_OVERRIDE
michael@0 141 {
michael@0 142 return mList->DispatchTrackEvent(mEvent);
michael@0 143 }
michael@0 144
michael@0 145 private:
michael@0 146 nsRefPtr<TextTrackList> mList;
michael@0 147 nsRefPtr<nsIDOMEvent> mEvent;
michael@0 148 };
michael@0 149
michael@0 150 nsresult
michael@0 151 TextTrackList::DispatchTrackEvent(nsIDOMEvent* aEvent)
michael@0 152 {
michael@0 153 return DispatchTrustedEvent(aEvent);
michael@0 154 }
michael@0 155
michael@0 156 void
michael@0 157 TextTrackList::CreateAndDispatchChangeEvent()
michael@0 158 {
michael@0 159 nsCOMPtr<nsIDOMEvent> event;
michael@0 160 nsresult rv = NS_NewDOMEvent(getter_AddRefs(event), this, nullptr, nullptr);
michael@0 161 if (NS_FAILED(rv)) {
michael@0 162 NS_WARNING("Failed to create the error event!");
michael@0 163 return;
michael@0 164 }
michael@0 165
michael@0 166 rv = event->InitEvent(NS_LITERAL_STRING("change"), false, false);
michael@0 167 if (NS_FAILED(rv)) {
michael@0 168 NS_WARNING("Failed to init the change event!");
michael@0 169 return;
michael@0 170 }
michael@0 171
michael@0 172 event->SetTrusted(true);
michael@0 173
michael@0 174 nsCOMPtr<nsIRunnable> eventRunner = new TrackEventRunner(this, event);
michael@0 175 NS_DispatchToMainThread(eventRunner, NS_DISPATCH_NORMAL);
michael@0 176 }
michael@0 177
michael@0 178 void
michael@0 179 TextTrackList::CreateAndDispatchTrackEventRunner(TextTrack* aTrack,
michael@0 180 const nsAString& aEventName)
michael@0 181 {
michael@0 182 TrackEventInit eventInit;
michael@0 183 eventInit.mBubbles = false;
michael@0 184 eventInit.mCancelable = false;
michael@0 185 eventInit.mTrack = aTrack;
michael@0 186 nsRefPtr<TrackEvent> event =
michael@0 187 TrackEvent::Constructor(this, aEventName, eventInit);
michael@0 188
michael@0 189 // Dispatch the TrackEvent asynchronously.
michael@0 190 nsCOMPtr<nsIRunnable> eventRunner = new TrackEventRunner(this, event);
michael@0 191 NS_DispatchToMainThread(eventRunner, NS_DISPATCH_NORMAL);
michael@0 192 }
michael@0 193
michael@0 194 HTMLMediaElement*
michael@0 195 TextTrackList::GetMediaElement()
michael@0 196 {
michael@0 197 if (mTextTrackManager) {
michael@0 198 return mTextTrackManager->mMediaElement;
michael@0 199 }
michael@0 200 return nullptr;
michael@0 201 }
michael@0 202
michael@0 203 void
michael@0 204 TextTrackList::SetTextTrackManager(TextTrackManager* aTextTrackManager)
michael@0 205 {
michael@0 206 mTextTrackManager = aTextTrackManager;
michael@0 207 }
michael@0 208
michael@0 209 } // namespace dom
michael@0 210 } // namespace mozilla

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