gecko-dev/dom/media/TextTrackCueList.h

85 строки
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 et tw=78: */
/* 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/. */
#ifndef mozilla_dom_TextTrackCueList_h
#define mozilla_dom_TextTrackCueList_h
#include "nsTArray.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
#include "mozilla/ErrorResult.h"
#include "Intervals.h"
namespace mozilla {
namespace dom {
class TextTrackCue;
class TextTrackCueList final : public nsISupports
, public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TextTrackCueList)
// TextTrackCueList WebIDL
explicit TextTrackCueList(nsISupports* aParent);
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
nsISupports* GetParentObject() const
{
return mParent;
}
uint32_t Length() const
{
return mList.Length();
}
bool IsEmpty() const
{
return mList.Length() == 0;
}
TextTrackCue* IndexedGetter(uint32_t aIndex, bool& aFound);
TextTrackCue* operator[](uint32_t aIndex);
TextTrackCue* GetCueById(const nsAString& aId);
TextTrackCueList& operator=(const TextTrackCueList& aOther);
// Adds a cue to mList by performing an insertion sort on mList.
// We expect most files to already be sorted, so an insertion sort starting
// from the end of the current array should be more efficient than a general
// sort step after all cues are loaded.
void AddCue(TextTrackCue& aCue);
void RemoveCue(TextTrackCue& aCue);
void RemoveCue(TextTrackCue& aCue, ErrorResult& aRv);
void RemoveCueAt(uint32_t aIndex);
void RemoveAll();
void GetArray(nsTArray<RefPtr<TextTrackCue> >& aCues);
void SetCuesInactive();
already_AddRefed<TextTrackCueList>
GetCueListByTimeInterval(media::Interval<double>& aInterval);
void NotifyCueUpdated(TextTrackCue *aCue);
bool IsCueExist(TextTrackCue *aCue);
private:
~TextTrackCueList();
nsCOMPtr<nsISupports> mParent;
// A sorted list of TextTrackCues sorted by earliest start time. If the start
// times are equal then it will be sorted by end time, earliest first.
nsTArray< RefPtr<TextTrackCue> > mList;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_TextTrackCueList_h