gecko-dev/dom/media/TextTrackCueList.cpp

141 строка
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/TextTrackCueList.h"
#include "mozilla/dom/TextTrackCueListBinding.h"
#include "mozilla/dom/TextTrackCue.h"
namespace mozilla {
namespace dom {
class CompareCuesByTime {
public:
bool Equals(TextTrackCue* aOne, TextTrackCue* aTwo) const { return false; }
bool LessThan(TextTrackCue* aOne, TextTrackCue* aTwo) const {
return aOne->StartTime() < aTwo->StartTime() ||
(aOne->StartTime() == aTwo->StartTime() &&
aOne->EndTime() >= aTwo->EndTime());
}
};
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(TextTrackCueList, mParent, mList)
NS_IMPL_CYCLE_COLLECTING_ADDREF(TextTrackCueList)
NS_IMPL_CYCLE_COLLECTING_RELEASE(TextTrackCueList)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TextTrackCueList)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
TextTrackCueList::TextTrackCueList(nsISupports* aParent) : mParent(aParent) {}
TextTrackCueList::~TextTrackCueList() {}
JSObject* TextTrackCueList::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return TextTrackCueList_Binding::Wrap(aCx, this, aGivenProto);
}
TextTrackCue* TextTrackCueList::IndexedGetter(uint32_t aIndex, bool& aFound) {
aFound = aIndex < mList.Length();
if (!aFound) {
return nullptr;
}
return mList[aIndex];
}
TextTrackCue* TextTrackCueList::operator[](uint32_t aIndex) {
return mList.SafeElementAt(aIndex, nullptr);
}
TextTrackCueList& TextTrackCueList::operator=(const TextTrackCueList& aOther) {
mList = aOther.mList;
return *this;
}
TextTrackCue* TextTrackCueList::GetCueById(const nsAString& aId) {
if (aId.IsEmpty()) {
return nullptr;
}
for (uint32_t i = 0; i < mList.Length(); i++) {
if (aId.Equals(mList[i]->Id())) {
return mList[i];
}
}
return nullptr;
}
void TextTrackCueList::AddCue(TextTrackCue& aCue) {
if (mList.Contains(&aCue)) {
return;
}
mList.InsertElementSorted(&aCue, CompareCuesByTime());
}
void TextTrackCueList::RemoveCue(TextTrackCue& aCue, ErrorResult& aRv) {
if (!mList.Contains(&aCue)) {
aRv.Throw(NS_ERROR_DOM_NOT_FOUND_ERR);
return;
}
mList.RemoveElement(&aCue);
}
void TextTrackCueList::RemoveCue(TextTrackCue& aCue) {
mList.RemoveElement(&aCue);
}
void TextTrackCueList::RemoveCueAt(uint32_t aIndex) {
if (aIndex < mList.Length()) {
mList.RemoveElementAt(aIndex);
}
}
void TextTrackCueList::RemoveAll() { mList.Clear(); }
void TextTrackCueList::GetArray(nsTArray<RefPtr<TextTrackCue>>& aCues) {
aCues = nsTArray<RefPtr<TextTrackCue>>(mList);
}
void TextTrackCueList::SetCuesInactive() {
for (uint32_t i = 0; i < mList.Length(); ++i) {
mList[i]->SetActive(false);
}
}
already_AddRefed<TextTrackCueList> TextTrackCueList::GetCueListByTimeInterval(
media::Interval<double>& aInterval) {
RefPtr<TextTrackCueList> output = new TextTrackCueList(mParent);
for (uint32_t i = 0; i < mList.Length(); ++i) {
TextTrackCue* cue = mList[i];
if (cue->StartTime() <= aInterval.mEnd &&
aInterval.mStart <= cue->EndTime()) {
output->AddCue(*cue);
}
}
return output.forget();
}
void TextTrackCueList::NotifyCueUpdated(TextTrackCue* aCue) {
if (aCue) {
mList.RemoveElement(aCue);
mList.InsertElementSorted(aCue, CompareCuesByTime());
}
}
bool TextTrackCueList::IsCueExist(TextTrackCue* aCue) {
if (aCue && mList.Contains(aCue)) {
return true;
}
return false;
}
nsTArray<RefPtr<TextTrackCue>>& TextTrackCueList::GetCuesArray() {
return mList;
}
} // namespace dom
} // namespace mozilla