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3d52d52549
Add webidl interfaces and implementations of the HTML <track> element and related TextTrack, TextTrackList, TextTrackCue, and TextTrackCueList dom objects. Visibility is controlled by the media.webvtt.enabled pref, which defaults to false. HTMLMediaElement:NewURIFromString() is hoisted to nsGenericHTMLElement so it's available to the track element as well. This patch is primarily work by Dale Karp, David Humphrey and others as Seneca College.
110 lines
2.5 KiB
C++
110 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 et tw=78: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_TextTrack_h
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#define mozilla_dom_TextTrack_h
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#include "mozilla/dom/TextTrackBinding.h"
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#include "mozilla/dom/TextTrackCue.h"
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#include "mozilla/dom/TextTrackCueList.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsDOMEventTargetHelper.h"
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#include "nsString.h"
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#include "nsWrapperCache.h"
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namespace mozilla {
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namespace dom {
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class TextTrackCue;
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class TextTrackCueList;
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class TextTrack MOZ_FINAL : public nsDOMEventTargetHelper
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(TextTrack,
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nsDOMEventTargetHelper)
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TextTrack(nsISupports* aParent);
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TextTrack(nsISupports* aParent,
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TextTrackKind aKind,
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const nsAString& aLabel,
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const nsAString& aLanguage);
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
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nsISupports* GetParentObject() const
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{
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return mParent;
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}
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TextTrackKind Kind() const
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{
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return mKind;
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}
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void GetLabel(nsAString& aLabel) const
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{
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aLabel = mLabel;
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}
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void GetLanguage(nsAString& aLanguage) const
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{
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aLanguage = mLanguage;
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}
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void GetInBandMetadataTrackDispatchType(nsAString& aType) const
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{
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aType = mType;
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}
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TextTrackMode Mode() const
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{
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return mMode;
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}
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void SetMode(TextTrackMode aValue);
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TextTrackCueList* GetCues() const
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{
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if (mMode == TextTrackMode::Disabled) {
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return nullptr;
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}
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return mCueList;
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}
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TextTrackCueList* GetActiveCues() const
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{
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if (mMode == TextTrackMode::Disabled) {
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return nullptr;
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}
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return mActiveCueList;
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}
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void Update(double time);
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void AddCue(TextTrackCue& aCue);
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void RemoveCue(TextTrackCue& aCue);
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void CueChanged(TextTrackCue& aCue);
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IMPL_EVENT_HANDLER(cuechange)
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private:
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nsCOMPtr<nsISupports> mParent;
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TextTrackKind mKind;
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nsString mLabel;
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nsString mLanguage;
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nsString mType;
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TextTrackMode mMode;
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nsRefPtr<TextTrackCueList> mCueList;
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nsRefPtr<TextTrackCueList> mActiveCueList;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_TextTrack_h
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