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TTSPlayer.cs
executable file
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TTSPlayer.cs
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/*
* Copyright(c) 2017 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
using System;
using System.Runtime.InteropServices;
using System.ComponentModel;
namespace Tizen.NUI
{
/// <summary>
/// The Text-to-speech (TTS) player.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public class TTSPlayer : BaseHandle
{
private static readonly TTSPlayer instance = TTSPlayer.Get();
private StateChangedEventCallbackType stateChangedEventCallback;
internal TTSPlayer(global::System.IntPtr cPtr, bool cMemoryOwn) : base(Interop.TtsPlayer.Upcast(cPtr), cMemoryOwn)
{
}
internal TTSPlayer() : this(Interop.TtsPlayer.NewTtsPlayer(), true)
{
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
internal TTSPlayer(TTSPlayer handle) : this(Interop.TtsPlayer.NewTtsPlayer(TTSPlayer.getCPtr(handle)), true)
{
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
private delegate void StateChangedEventCallbackType(TTSState prevState, TTSState nextState);
private event EventHandler<StateChangedEventArgs> stateChangedEventHandler;
/// <summary>
/// State changed event.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public event EventHandler<StateChangedEventArgs> StateChanged
{
add
{
if (stateChangedEventHandler == null)
{
stateChangedEventCallback = OnStateChanged;
StateChangedSignal().Connect(stateChangedEventCallback);
}
stateChangedEventHandler += value;
}
remove
{
stateChangedEventHandler -= value;
if (stateChangedEventHandler == null && StateChangedSignal().Empty() == false && stateChangedEventCallback != null)
{
StateChangedSignal().Disconnect(stateChangedEventCallback);
}
}
}
/// <summary>
/// Enumeration for the instance of TTS mode.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public enum TTSMode
{
/// <summary>
/// Default mode for normal application.
/// </summary>
Default = 0,
/// <summary>
/// Notification mode, such as playing utterance is started or completed.
/// </summary>
Notification,
/// <summary>
/// Screen reader mode. <br />
/// To help visually impaired users interact with their devices,<br />
/// screen reader reads text or graphic elements on the screen using the TTS engine.
/// </summary>
ScreenReader,
/// <summary>
/// Number of mode.
/// </summary>
ModeNum
}
/// <summary>
/// Enumeration for the instance of TTS state.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public enum TTSState
{
/// <summary>
/// Player is not available.
/// </summary>
Unavailable = 0,
/// <summary>
/// Player is ready to play.
/// </summary>
Ready,
/// <summary>
/// Player is playing.
/// </summary>
Playing,
/// <summary>
/// Player is paused.
/// </summary>
Paused
}
/// <summary>
/// Gets the singleton of the TTSPlayer object.
/// </summary>
/// <since_tizen> 5 </since_tizen>
public static TTSPlayer Instance
{
get
{
return instance;
}
}
/// <summary>
/// Gets the singleton of the TTS player for the given mode.
/// </summary>
/// <param name="mode"> The mode of TTS player.</param>
/// <returns> A handle of the TTS player for the given mode.</returns>
/// <since_tizen> 3 </since_tizen>
public static TTSPlayer Get(TTSMode mode)
{
TTSPlayer ret = new TTSPlayer(Interop.TtsPlayer.Get((int)mode), true);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
return ret;
}
/// <summary>
/// Gets the singleton of the TTS player for the default mode.
/// </summary>
/// <returns> A handle of the TTS player for the default mode.</returns>
/// <since_tizen> 3 </since_tizen>
public static TTSPlayer Get()
{
TTSPlayer ret = new TTSPlayer(Interop.TtsPlayer.Get(), true);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
return ret;
}
/// <summary>
/// Starts playing the audio data synthesized from the specified text.
/// </summary>
/// <param name="text"> The text to play.</param>
/// <remarks>The TTS player needs to be initialized.</remarks>
/// <since_tizen> 3 </since_tizen>
public void Play(string text)
{
Interop.TtsPlayer.Play(SwigCPtr, text);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
/// <summary>
/// Stops playing the utterance.
/// </summary>
/// <remarks>The TTS player needs to be initialized.</remarks>
/// <since_tizen> 3 </since_tizen>
public void Stop()
{
Interop.TtsPlayer.Stop(SwigCPtr);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
/// <summary>
/// Pauses the currently playing utterance.
/// </summary>
/// <remarks>The TTS player needs to be initialized.</remarks>
/// <since_tizen> 3 </since_tizen>
public void Pause()
{
Interop.TtsPlayer.Pause(SwigCPtr);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
/// <summary>
/// Resumes the previously paused utterance.
/// </summary>
/// <remarks>The TTS player needs to be initialized.</remarks>
/// <since_tizen> 3 </since_tizen>
public void Resume()
{
Interop.TtsPlayer.Resume(SwigCPtr);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
/// <summary>
/// Gets the current state of the player.
/// </summary>
/// <returns> The current TTS state. </returns>
/// <remarks>The TTS player needs to be initialized.</remarks>
/// <since_tizen> 3 </since_tizen>
public TTSState GetState()
{
TTSState ret = (TTSState)Interop.TtsPlayer.GetState(SwigCPtr);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
return ret;
}
internal StateChangedSignalType StateChangedSignal()
{
StateChangedSignalType ret = new StateChangedSignalType(Interop.TtsPlayer.StateChangedSignal(SwigCPtr), false);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
return ret;
}
internal TTSPlayer Assign(TTSPlayer rhs)
{
TTSPlayer ret = new TTSPlayer(Interop.TtsPlayer.Assign(SwigCPtr, TTSPlayer.getCPtr(rhs)), false);
if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
return ret;
}
private void OnStateChanged(TTSState prevState, TTSState nextState)
{
if (stateChangedEventHandler != null)
{
StateChangedEventArgs e = new StateChangedEventArgs();
e.PrevState = prevState;
e.NextState = nextState;
stateChangedEventHandler(this, e);
}
}
/// <summary>
/// State changed argument.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public class StateChangedEventArgs : EventArgs
{
/// <summary>
/// PrevState.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public TTSState PrevState
{
get;
set;
}
/// <summary>
/// NextState.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public TTSState NextState
{
get;
set;
}
}
}
}