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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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_SpeechSynthesis_h
#define mozilla_dom_SpeechSynthesis_h
#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "nsRefPtrHashtable.h"
#include "nsString.h"
#include "nsWeakReference.h"
#include "nsWrapperCache.h"
#include "js/TypeDecls.h"
#include "SpeechSynthesisUtterance.h"
#include "SpeechSynthesisVoice.h"
class nsIDOMWindow;
namespace mozilla::dom {
class nsSpeechTask;
class SpeechSynthesis final : public DOMEventTargetHelper,
public nsIObserver,
public nsSupportsWeakReference {
public:
explicit SpeechSynthesis(nsPIDOMWindowInner* aParent);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SpeechSynthesis,
DOMEventTargetHelper)
NS_DECL_NSIOBSERVER
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
bool Pending() const;
bool Speaking() const;
bool Paused() const;
bool HasEmptyQueue() const;
void Speak(SpeechSynthesisUtterance& aUtterance);
void Cancel();
void Pause();
void Resume();
void OnEnd(const nsSpeechTask* aTask);
void GetVoices(nsTArray<RefPtr<SpeechSynthesisVoice> >& aResult);
void ForceEnd();
IMPL_EVENT_HANDLER(voiceschanged)
private:
virtual ~SpeechSynthesis();
void AdvanceQueue();
bool HasVoices() const;
bool HasSpeakingTask() const {
return mCurrentTask && mCurrentTask->IsSpeaking();
}
nsTArray<RefPtr<SpeechSynthesisUtterance> > mSpeechQueue;
RefPtr<nsSpeechTask> mCurrentTask;
nsRefPtrHashtable<nsStringHashKey, SpeechSynthesisVoice> mVoiceCache;
bool mHoldQueue;
uint64_t mInnerID;
};
} // namespace mozilla::dom
#endif
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