From fbda24eff6865b42d7e0ce231c2e24f686d99f09 Mon Sep 17 00:00:00 2001
From: Seungsoo Lee <seungsoo47.lee@samsung.com>
Date: Sat, 3 Oct 2026 04:30:12 +0900
Subject: [PATCH] [flutter_tts] Add clearVoice

flutter_tts calls clearVoice to reset the voice chosen by setVoice, but the
Tizen plugin had no handler for it, so the call failed with
MissingPluginException. Reset the voice type to TTS_VOICE_TYPE_AUTO so the
engine picks the voice again (like iOS clearing its selected voice), and
return 1 like Android and iOS.

Upstream: flutter_tts 4.0.0 "Add clear selected voice" (Android/iOS)
https://github.com/dlutton/flutter_tts/blob/master/CHANGELOG.md#400
---
 packages/flutter_tts/CHANGELOG.md                          | 3 ++-
 packages/flutter_tts/README.md                             | 3 ++-
 .../example/integration_test/flutter_tts_test.dart         | 4 ++++
 packages/flutter_tts/pubspec.yaml                          | 2 +-
 packages/flutter_tts/tizen/src/flutter_tts_tizen_plugin.cc | 7 +++++++
 packages/flutter_tts/tizen/src/text_to_speech.h            | 2 ++
 6 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/packages/flutter_tts/CHANGELOG.md b/packages/flutter_tts/CHANGELOG.md
index 78440be36..90d7b945d 100644
--- a/packages/flutter_tts/CHANGELOG.md
+++ b/packages/flutter_tts/CHANGELOG.md
@@ -1,5 +1,6 @@
-## NEXT
+## 1.8.0
 
+* Add `clearVoice`.
 * Follow the analysis options of the frontend plugin.
 * Apply clang-format-16 formatting.
 
diff --git a/packages/flutter_tts/README.md b/packages/flutter_tts/README.md
index de5365d89..a686e793e 100644
--- a/packages/flutter_tts/README.md
+++ b/packages/flutter_tts/README.md
@@ -11,7 +11,7 @@ This package is not an _endorsed_ implementation of `flutter_tts`. Therefore, yo
 ```yaml
 dependencies:
   flutter_tts: ^4.2.5
-  flutter_tts_tizen: ^1.7.1
+  flutter_tts_tizen: ^1.8.0
 ```
 
 Then you can import `flutter_tts` in your Dart code:
@@ -34,6 +34,7 @@ The features supported by Tizen are as follows. Other features are not supported
  - [x] is language available
  - [x] get voices
  - [x] set voice
+ - [x] clear voice
  - [x] set speech rate
  - [x] set speech volume (requires privilege `http://tizen.org/privilege/volume.set` in `tizen_manifest.xml`)
  - [x] get default voice
diff --git a/packages/flutter_tts/example/integration_test/flutter_tts_test.dart b/packages/flutter_tts/example/integration_test/flutter_tts_test.dart
index 0518a9a27..965787abf 100644
--- a/packages/flutter_tts/example/integration_test/flutter_tts_test.dart
+++ b/packages/flutter_tts/example/integration_test/flutter_tts_test.dart
@@ -67,6 +67,10 @@ void main() {
     );
   });
 
+  test('clearVoice returns 1', () async {
+    expect(await flutterTts.clearVoice(), 1);
+  });
+
   test('setSpeechRate returns 1', () async {
     expect(await flutterTts.setSpeechRate(0.5), 1);
   });
diff --git a/packages/flutter_tts/pubspec.yaml b/packages/flutter_tts/pubspec.yaml
index b2e3a8bb1..6a3ee6bad 100644
--- a/packages/flutter_tts/pubspec.yaml
+++ b/packages/flutter_tts/pubspec.yaml
@@ -2,7 +2,7 @@ name: flutter_tts_tizen
 description: The Tizen implementation of flutter_tts plugin.
 homepage: https://github.com/flutter-tizen/plugins
 repository: https://github.com/flutter-tizen/plugins/tree/main/packages/flutter_tts
-version: 1.7.1
+version: 1.8.0
 
 environment:
   sdk: ">=3.1.0 <4.0.0"
diff --git a/packages/flutter_tts/tizen/src/flutter_tts_tizen_plugin.cc b/packages/flutter_tts/tizen/src/flutter_tts_tizen_plugin.cc
index af1c50084..73bfdcb2d 100644
--- a/packages/flutter_tts/tizen/src/flutter_tts_tizen_plugin.cc
+++ b/packages/flutter_tts/tizen/src/flutter_tts_tizen_plugin.cc
@@ -128,6 +128,8 @@ class FlutterTtsTizenPlugin : public flutter::Plugin {
       OnGetDefaultVoice();
     } else if (method_name == "setVoice") {
       OnSetVoice(arguments);
+    } else if (method_name == "clearVoice") {
+      OnClearVoice();
     } else if (method_name == "getVoices") {
       OnGetVoices();
     } else if (method_name == "getMaxSpeechInputLength") {
@@ -262,6 +264,11 @@ class FlutterTtsTizenPlugin : public flutter::Plugin {
     SendResult(flutter::EncodableValue(0));
   }
 
+  void OnClearVoice() {
+    tts_->ClearDefaultVoiceType();
+    SendResult(flutter::EncodableValue(1));
+  }
+
   void OnGetVoices() {
     flutter::EncodableList list;
     for (auto voice : tts_->GetSupportedVoiceTypes()) {
diff --git a/packages/flutter_tts/tizen/src/text_to_speech.h b/packages/flutter_tts/tizen/src/text_to_speech.h
index 209b4b96a..50f5f8cbf 100644
--- a/packages/flutter_tts/tizen/src/text_to_speech.h
+++ b/packages/flutter_tts/tizen/src/text_to_speech.h
@@ -59,6 +59,8 @@ class TextToSpeech {
 
   void SetDefaultVoiceType(const std::string &voice);
 
+  void ClearDefaultVoiceType() { default_voice_type_ = TTS_VOICE_TYPE_AUTO; }
+
   std::optional<int32_t> GetMaxSpeechInputLength();
 
   std::optional<TtsState> GetState();