Explicitly pass control flag to input manager

Replace the "global" control flag in the input_manager by a function
parameter to make explicit that the behavior depends whether
--no-control has been set.

app/src/input_manager.c

@@ -191,7 +191,8 @@ input_manager_process_text_input(struct input_manager *input_manager,
 
 void
 input_manager_process_key(struct input_manager *input_manager,
-                          const SDL_KeyboardEvent *event) {
+                          const SDL_KeyboardEvent *event,
+                          bool control) {
     bool ctrl = event->keysym.mod & (KMOD_LCTRL | KMOD_RCTRL);
     bool alt = event->keysym.mod & (KMOD_LALT | KMOD_RALT);
     bool meta = event->keysym.mod & (KMOD_LGUI | KMOD_RGUI);
@@ -202,9 +203,6 @@ input_manager_process_key(struct input_manager *input_manager,
         return;
     }
 
-    // false if the user requested not to interact with the device
-    bool control = input_manager->control;
-
     // capture all Ctrl events
     if (ctrl | meta) {
         SDL_Keycode keycode = event->keysym.sym;
@@ -341,10 +339,8 @@ is_outside_device_screen(struct input_manager *input_manager, int x, int y)
 
 void
 input_manager_process_mouse_button(struct input_manager *input_manager,
-                                   const SDL_MouseButtonEvent *event) {
+                                   const SDL_MouseButtonEvent *event,
-    // false if the user requested not to interact with the device
+                                   bool control) {
-    bool control = input_manager->control;
-
     if (event->type == SDL_MOUSEBUTTONDOWN) {
         if (control && event->button == SDL_BUTTON_RIGHT) {
             press_back_or_turn_screen_on(input_manager->controller);

app/src/input_manager.h

@@ -13,7 +13,6 @@ struct input_manager {
     struct controller *controller;
     struct video_buffer *video_buffer;
     struct screen *screen;
-    bool control;
 };
 
 void
@@ -22,7 +21,8 @@ input_manager_process_text_input(struct input_manager *input_manager,
 
 void
 input_manager_process_key(struct input_manager *input_manager,
-                          const SDL_KeyboardEvent *event);
+                          const SDL_KeyboardEvent *event,
+                          bool control);
 
 void
 input_manager_process_mouse_motion(struct input_manager *input_manager,
@@ -30,7 +30,8 @@ input_manager_process_mouse_motion(struct input_manager *input_manager,
 
 void
 input_manager_process_mouse_button(struct input_manager *input_manager,
-                                   const SDL_MouseButtonEvent *event);
+                                   const SDL_MouseButtonEvent *event,
+                                   bool control);
 
 void
 input_manager_process_mouse_wheel(struct input_manager *input_manager,

app/src/scrcpy.c

@@ -39,7 +39,6 @@ static struct input_manager input_manager = {
     .controller = &controller,
     .video_buffer = &video_buffer,
     .screen = &screen,
-    .control = true,
 };
 
 // init SDL and set appropriate hints
@@ -146,7 +145,7 @@ handle_event(SDL_Event *event, bool control) {
         case SDL_KEYUP:
             // some key events do not interact with the device, so process the
             // event even if control is disabled
-            input_manager_process_key(&input_manager, &event->key);
+            input_manager_process_key(&input_manager, &event->key, control);
             break;
         case SDL_MOUSEMOTION:
             if (!control) {
@@ -164,7 +163,8 @@ handle_event(SDL_Event *event, bool control) {
         case SDL_MOUSEBUTTONUP:
             // some mouse events do not interact with the device, so process
             // the event even if control is disabled
-            input_manager_process_mouse_button(&input_manager, &event->button);
+            input_manager_process_mouse_button(&input_manager, &event->button,
+                                               control);
             break;
         case SDL_DROPFILE: {
             if (!control) {
@@ -301,8 +301,6 @@ scrcpy(const struct scrcpy_options *options) {
         goto finally_destroy_server;
     }
 
-    input_manager.control = control;
-
     struct decoder *dec = NULL;
     if (display) {
         if (!video_buffer_init(&video_buffer)) {