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103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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#include "mozilla/dom/HTMLTrackElement.h"
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#include "mozilla/dom/TextTrackCue.h"
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#include "mozilla/dom/TextTrackCueBinding.h"
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#include "webvtt/cue.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_3(TextTrackCue,
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mGlobal,
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mTrack,
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mTrackElement)
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NS_IMPL_ADDREF_INHERITED(TextTrackCue, nsDOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(TextTrackCue, nsDOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TextTrackCue)
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NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
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// Set cue setting defaults based on step 19 & seq.
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// in http://dev.w3.org/html5/webvtt/#parsing
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void
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TextTrackCue::SetDefaultCueSettings()
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{
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mPosition = 50;
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mSize = 100;
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mPauseOnExit = false;
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mSnapToLines = true;
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mLine = WEBVTT_AUTO;
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mAlign = TextTrackCueAlign::Middle;
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}
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TextTrackCue::TextTrackCue(nsISupports* aGlobal,
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double aStartTime,
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double aEndTime,
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const nsAString& aText)
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: mGlobal(aGlobal)
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, mText(aText)
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, mStartTime(aStartTime)
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, mEndTime(aEndTime)
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, mHead(nullptr)
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{
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SetDefaultCueSettings();
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MOZ_ASSERT(aGlobal);
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SetIsDOMBinding();
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}
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TextTrackCue::TextTrackCue(nsISupports* aGlobal,
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double aStartTime,
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double aEndTime,
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const nsAString& aText,
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HTMLTrackElement* aTrackElement,
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webvtt_node* head)
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: mGlobal(aGlobal)
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, mText(aText)
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, mStartTime(aStartTime)
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, mEndTime(aEndTime)
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, mTrackElement(aTrackElement)
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, mHead(head)
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{
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// Use the webvtt library's reference counting.
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webvtt_ref_node(mHead);
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SetDefaultCueSettings();
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MOZ_ASSERT(aGlobal);
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SetIsDOMBinding();
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}
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TextTrackCue::~TextTrackCue()
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{
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if (mHead) {
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// Release our reference and null mHead.
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webvtt_release_node(&mHead);
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}
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}
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void
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TextTrackCue::DisplayCue()
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{
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if (mTrackElement) {
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mTrackElement->DisplayCueText(mHead);
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}
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}
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JSObject*
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TextTrackCue::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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return TextTrackCueBinding::Wrap(aCx, aScope, this);
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}
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void
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TextTrackCue::CueChanged()
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{
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if (mTrack) {
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mTrack->CueChanged(*this);
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}
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}
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} // namespace dom
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} // namespace mozilla
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