mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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5939f3d97a
- Active cues now returns the subset of cues in mCueList that are valid for the current playback time. - Introduces new code in media element, when seeking, and in TextTrack, when adding and removing cues, to mark the active cue list as dirty so that we know when we might need to rebuild the list completely.
121 lines
2.8 KiB
C++
121 lines
2.8 KiB
C++
/* -*- 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/TextTrackCueList.h"
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#include "mozilla/dom/TextTrackCueListBinding.h"
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#include "mozilla/dom/TextTrackCue.h"
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namespace mozilla {
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namespace dom {
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class CompareCuesByTime
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{
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public:
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bool Equals(TextTrackCue* aOne, TextTrackCue* aTwo) const {
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return aOne->StartTime() == aTwo->StartTime() &&
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aOne->EndTime() == aTwo->EndTime();
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}
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bool LessThan(TextTrackCue* aOne, TextTrackCue* aTwo) const {
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return aOne->StartTime() < aTwo->StartTime() ||
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(aOne->StartTime() == aTwo->StartTime() &&
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aOne->EndTime() < aTwo->EndTime());
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}
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};
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(TextTrackCueList, mParent, mList)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(TextTrackCueList)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(TextTrackCueList)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TextTrackCueList)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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TextTrackCueList::TextTrackCueList(nsISupports* aParent) : mParent(aParent)
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{
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SetIsDOMBinding();
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}
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void
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TextTrackCueList::Update(double aTime)
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{
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const uint32_t length = mList.Length();
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for (uint32_t i = 0; i < length; i++) {
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if (aTime > mList[i]->StartTime() && aTime < mList[i]->EndTime()) {
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mList[i]->RenderCue();
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}
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}
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}
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JSObject*
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TextTrackCueList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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return TextTrackCueListBinding::Wrap(aCx, aScope, this);
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}
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TextTrackCue*
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TextTrackCueList::IndexedGetter(uint32_t aIndex, bool& aFound)
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{
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aFound = aIndex < mList.Length();
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return aFound ? mList[aIndex] : nullptr;
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}
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TextTrackCue*
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TextTrackCueList::operator[](uint32_t aIndex)
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{
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return mList.SafeElementAt(aIndex, nullptr);
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}
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TextTrackCue*
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TextTrackCueList::GetCueById(const nsAString& aId)
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{
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if (aId.IsEmpty()) {
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return nullptr;
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}
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for (uint32_t i = 0; i < mList.Length(); i++) {
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if (aId.Equals(mList[i]->Id())) {
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return mList[i];
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}
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}
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return nullptr;
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}
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void
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TextTrackCueList::AddCue(TextTrackCue& aCue)
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{
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if (mList.Contains(&aCue)) {
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return;
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}
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mList.InsertElementSorted(&aCue, CompareCuesByTime());
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}
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void
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TextTrackCueList::RemoveCue(TextTrackCue& aCue, ErrorResult& aRv)
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{
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if (!mList.Contains(&aCue)) {
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aRv.Throw(NS_ERROR_DOM_NOT_FOUND_ERR);
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return;
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}
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mList.RemoveElement(&aCue);
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}
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void
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TextTrackCueList::RemoveCueAt(uint32_t aIndex)
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{
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if (aIndex < mList.Length()) {
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mList.RemoveElementAt(aIndex);
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}
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}
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void
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TextTrackCueList::RemoveAll()
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{
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mList.Clear();
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}
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} // namespace dom
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} // namespace mozilla
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