[fix] release keyboard hook after remote control disconnects, refs #23

src/device_controller/keyboard/linux/keyboard_capturer.cpp

@@ -51,7 +51,16 @@ int KeyboardCapturer::Hook(OnKeyAction on_key_action, void* user_ptr) {
 }
 
 int KeyboardCapturer::Unhook() {
+  g_on_key_action = nullptr;
+  g_user_ptr = nullptr;
+
   running_ = false;
+
+  if (display_) {
+    XSelectInput(display_, DefaultRootWindow(display_), 0);
+    XFlush(display_);
+  }
+
   return 0;
 }
 

src/device_controller/keyboard/mac/keyboard_capturer.cpp

@@ -10,6 +10,10 @@ static void* g_user_ptr = nullptr;
 
 CGEventRef eventCallback(CGEventTapProxy proxy, CGEventType type,
                          CGEventRef event, void* userInfo) {
+  if (!g_on_key_action) {
+    return event;
+  }
+
   KeyboardCapturer* keyboard_capturer = (KeyboardCapturer*)userInfo;
   if (!keyboard_capturer) {
     LOG_ERROR("keyboard_capturer is nullptr");
@@ -120,12 +124,23 @@ int KeyboardCapturer::Hook(OnKeyAction on_key_action, void* user_ptr) {
 }
 
 int KeyboardCapturer::Unhook() {
+  g_on_key_action = nullptr;
+  g_user_ptr = nullptr;
+
+  if (event_tap_) {
+    CGEventTapEnable(event_tap_, false);
+  }
+
   if (run_loop_source_) {
+    CFRunLoopRemoveSource(CFRunLoopGetCurrent(), run_loop_source_,
+                          kCFRunLoopCommonModes);
     CFRelease(run_loop_source_);
+    run_loop_source_ = nullptr;
   }
 
   if (event_tap_) {
     CFRelease(event_tap_);
+    event_tap_ = nullptr;
   }
 
   return 0;

src/device_controller/keyboard/windows/keyboard_capturer.cpp

@@ -39,7 +39,12 @@ int KeyboardCapturer::Hook(OnKeyAction on_key_action, void* user_ptr) {
 }
 
 int KeyboardCapturer::Unhook() {
-  UnhookWindowsHookEx(keyboard_hook_);
+  if (keyboard_hook_) {
+    g_on_key_action = nullptr;
+    g_user_ptr = nullptr;
+    UnhookWindowsHookEx(keyboard_hook_);
+    keyboard_hook_ = nullptr;
+  }
   return 0;
 }
 

src/gui/render.cpp

@@ -1340,6 +1340,7 @@ void Render::ProcessSdlEvent(const SDL_Event& event) {
         is_client_mode_ = false;
         reload_recent_connections_ = true;
         fullscreen_button_pressed_ = false;
+        start_keyboard_capturer_ = false;
         just_created_ = false;
         recent_connection_image_save_time_ = SDL_GetTicks();
       } else {