1 #ifndef __DALI_TTS_PLAYER_H__
2 #define __DALI_TTS_PLAYER_H__
5 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/public-api/object/base-handle.h>
23 #include <dali/public-api/signals/dali-signal.h>
28 namespace Internal DALI_INTERNAL
37 * @brief The Text-to-speech Player.
39 class DALI_IMPORT_API TtsPlayer : public BaseHandle
44 * @brief Enumeration of TTS mode.
48 DEFAULT = 0, ///< Default mode for normal application
49 NOTIFICATION, ///< Notification mode
50 SCREEN_READER, ///< Screen reader mode
55 * @brief Enumeration of TTS state.
59 UNAVAILABLE = 0, ///< Player is not available
60 READY, ///< Player is ready to play
61 PLAYING, ///< Player is playing
62 PAUSED ///< Player is paused
68 * @brief Type of signal emitted when the TTS state changes.
70 typedef Signal< void ( const Dali::TtsPlayer::State, const Dali::TtsPlayer::State ) > StateChangedSignalType;
75 * @brief Create an uninitialized handle.
77 * This can be initialized by calling TtsPlayer::Get().
82 * @brief Gets the singleton of the TtsPlayer for the given mode.
84 * @param mode the mode of tts-player
85 * @return A handle of the Ttsplayer for the given mode.
87 static TtsPlayer Get(Dali::TtsPlayer::Mode mode = Dali::TtsPlayer::DEFAULT);
92 * This is non-virtual since derived Handle types must not contain data or virtual methods.
97 * @brief This copy constructor is required for (smart) pointer semantics.
99 * @param [in] handle A reference to the copied handle
101 TtsPlayer(const TtsPlayer& handle);
104 * @brief This assignment operator is required for (smart) pointer semantics.
106 * @param [in] rhs A reference to the copied handle
107 * @return A reference to this
109 TtsPlayer& operator=(const TtsPlayer& rhs);
112 * @brief Start playing the audio data synthesized from the specified text.
114 * @pre The TtsPlayer needs to be initialized.
115 * @param[in] text to play.
117 void Play(const std::string& text);
120 * @brief Stops playing the utterance.
121 * @pre The TtsPlayer needs to be initialized.
126 * @brief Pauses the currently playing utterance.
127 * @pre The TtsPlayer needs to be initialized.
132 * @brief Resumes the previously paused utterance.
133 * @pre The TtsPlayer needs to be initialized.
138 * @brief Gets the current state of the player.
139 * @pre The TtsPlayer needs to be initialized.
144 * @brief Allows connection TTS state change signal.
145 * Note: Only supported by some adaptor types.
146 * @return A reference to the signal for connection.
148 Dali::TtsPlayer::StateChangedSignalType& StateChangedSignal();
150 public: // Not intended for application developers
153 * @brief This constructor is used by TtsPlayer::Get().
154 * @param[in] ttsPlayer A pointer to the TTS player.
156 explicit DALI_INTERNAL TtsPlayer( Internal::Adaptor::TtsPlayer* ttsPlayer );
161 #endif // __DALI_TTS_PLAYER_H__