add audio.recording-enabled setting

src/audio/audio.cpp

@@ -190,18 +190,34 @@ void audio::initialize(
             audio::get_channel(channel.name)->setVolume(value * value);
         }, true));
     }
-    objects_keeper.keepAlive(settings.acousticEffects.observe([=](auto value) {
+    objects_keeper.keepAlive(settings.acousticEffects.observe([=](bool value) {
         if (value) return;
         backend->setAcoustics(audio::Acoustics {});
     }, true));
 
-    if (inputEnabled) {
-        ::input_device = backend->openInputDevice("", 44100, 1, 16);
-        ::input_enabled = true;
-    }
-    if (::input_device) {
-        ::input_device->startCapture();
-    }
+    ::input_enabled = inputEnabled;
+
+    objects_keeper.keepAlive(settings.recordingEnabled.observe([&settings](bool enabled) {
+        if (!::input_enabled) {
+            return;
+        }
+        if (!enabled && ::input_device == nullptr) {
+            return;
+        }
+        if (enabled) {
+            logger.info() << "recording enabled; input device is "
+                          << settings.inputDevice.get();
+            ::input_device = backend->openInputDevice(
+                settings.inputDevice.get(), 44100, 1, 16
+            );
+            ::input_device->startCapture();
+        } else {
+            if (::input_device) {
+                ::input_device->stopCapture();
+            }
+            ::input_device = nullptr;
+        }
+    }, true));
 }
 
 InputDevice* audio::get_input_device() {

src/engine/Engine.cpp

@@ -189,7 +189,7 @@ void Engine::initialize(CoreParameters coreParameters) {
 
     keepAlive(settings.audio.inputDevice.observe([](auto name) {
         audio::set_input_device(name == "auto" ? "" : name);
-    }, true));
+    }));
 
     project->loadProjectStartScript();
     if (!params.headless) {

src/graphics/ui/elements/CheckBox.cpp

@@ -57,6 +57,10 @@ FullCheckBox::FullCheckBox(
 
     add(checkbox);
 
+    auto& checkboxActions = actions;
     label->setMargin(glm::vec4(5.f, 5.f, 0.f, 0.f));
+    label->listenAction(UIAction::CLICK, [&checkboxActions](auto& gui) {
+        checkboxActions.notify(UIAction::CLICK, gui);
+    });
     add(label);
 }

src/io/settings_io.cpp

@@ -38,6 +38,7 @@ SettingsHandler::SettingsHandler(EngineSettings& settings) {
 
     builder.addSection("audio");
     builder.add("enabled", &settings.audio.enabled, false);
+    builder.add("recording-enabled", &settings.audio.recordingEnabled);
     builder.add("volume-master", &settings.audio.volumeMaster);
     builder.add("volume-regular", &settings.audio.volumeRegular);
     builder.add("volume-ui", &settings.audio.volumeUI);

src/settings.hpp

@@ -10,6 +10,7 @@
 struct AudioSettings {
     /// @brief try to initialize AL backend
     FlagSetting enabled {true};
+    FlagSetting recordingEnabled {false};
     
     NumberSetting volumeMaster {1.0f, 0.0f, 1.0f, setting_format::percent};
     NumberSetting volumeRegular {1.0f, 0.0f, 1.0f, setting_format::percent};