import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/webspeech/synth/SpeechSynthesis.h

@@ -0,0 +1,85 @@
+/* -*- 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 {
+namespace 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;
+
+  nsTArray<RefPtr<SpeechSynthesisUtterance> > mSpeechQueue;
+
+  RefPtr<nsSpeechTask> mCurrentTask;
+
+  nsRefPtrHashtable<nsStringHashKey, SpeechSynthesisVoice> mVoiceCache;
+
+  bool mHoldQueue;
+
+  uint64_t mInnerID;
+};
+
+} // namespace dom
+} // namespace mozilla
+#endif