feat: boss key

app/scrcpy.1

@@ -669,6 +669,10 @@ Open keyboard settings on the device (for HID keyboard only)
 .B MOD+i
 Enable/disable FPS counter (print frames/second in logs)
 
+.TP
+.B MOD+d
+Hides the window (press enter in console to recover)
+
 .TP
 .B Ctrl+click-and-move
 Pinch-to-zoom and rotate from the center of the screen

app/src/cli.c

@@ -921,7 +921,8 @@ static const struct sc_shortcut shortcuts[] = {
         .text = "Click on HOME",
     },
     {
-        .shortcuts = {
+        .shortcuts =
+            {
                 "MOD+b",
                 "MOD+Backspace",
                 "Right-click (when screen is on)",
@@ -997,6 +998,10 @@ static const struct sc_shortcut shortcuts[] = {
         .shortcuts = {"MOD+i"},
         .text = "Enable/disable FPS counter (print frames/second in logs)",
     },
+    {
+        .shortcuts = {"MOD+d"},
+        .text = "Hides the window (press enter in console to recover)",
+    },
     {
         .shortcuts = {"Ctrl+click-and-move"},
         .text = "Pinch-to-zoom and rotate from the center of the screen",

app/src/input_manager.c

@@ -2,10 +2,12 @@
 
 #include <assert.h>
 #include <SDL2/SDL_keycode.h>
+#include <stdio.h>
 
 #include "input_events.h"
 #include "screen.h"
 #include "util/log.h"
+#include "util/thread.h"
 
 #define SC_SDL_SHORTCUT_MODS_MASK (KMOD_CTRL | KMOD_ALT | KMOD_GUI)
 
@@ -397,6 +399,18 @@ inverse_point(struct sc_point point, struct sc_size size,
     return point;
 }
 
+static int
+run_window_restore(void *data) {
+    struct sc_screen *screen = data;
+
+    getchar();
+
+    sc_screen_show_window(screen);
+    printf("Window resumed\n");
+
+    return 0;
+}
+
 static void
 sc_input_manager_process_key(struct sc_input_manager *im,
                              const SDL_KeyboardEvent *event) {
@@ -575,6 +589,21 @@ sc_input_manager_process_key(struct sc_input_manager *im,
                     open_hard_keyboard_settings(im);
                 }
                 return;
+            case SDLK_d:
+                if (!shift && !repeat && down && !im->screen->hidden) {
+                    sc_screen_hide_window(im->screen);
+
+                    printf("Window hidden, press [Enter] to restore...\n");
+
+                    sc_thread thread;
+                    bool ok = sc_thread_create(&thread, run_window_restore, "scrcpy-hidden-screen", im->screen);
+                    if (!ok) {
+                        LOGE("Could not start window restore thread");
+                        sc_screen_show_window(im->screen);
+                        return;
+                    }
+                }
+                return;
         }
 
         return;

app/src/screen.c

@@ -361,6 +361,7 @@ sc_screen_init(struct sc_screen *screen,
     screen->fullscreen = false;
     screen->maximized = false;
     screen->minimized = false;
+    screen->hidden = false;
     screen->mouse_capture_key_pressed = 0;
     screen->paused = false;
     screen->resume_frame = NULL;
@@ -496,9 +497,24 @@ sc_screen_show_initial_window(struct sc_screen *screen) {
 
 void
 sc_screen_hide_window(struct sc_screen *screen) {
+    if (screen->hidden) {
+        return;
+    }
+
+    screen->hidden = true;
     SDL_HideWindow(screen->window);
  }
 
+void
+sc_screen_show_window(struct sc_screen *screen) {
+    if (!screen->hidden) {
+        return;
+    }
+
+    screen->hidden = false;
+    SDL_ShowWindow(screen->window);
+}
+
 void
 sc_screen_interrupt(struct sc_screen *screen) {
     sc_fps_counter_interrupt(&screen->fps_counter);

app/src/screen.h

@@ -58,6 +58,7 @@ struct sc_screen {
     bool fullscreen;
     bool maximized;
     bool minimized;
+    bool hidden;
 
     // To enable/disable mouse capture, a mouse capture key (LALT, LGUI or
     // RGUI) must be pressed. This variable tracks the pressed capture key.
@@ -118,9 +119,14 @@ sc_screen_destroy(struct sc_screen *screen);
 //
 // It is used to hide the window immediately on closing without waiting for
 // screen_destroy()
+// It is also used for hide the window temporarly as a feature
 void
 sc_screen_hide_window(struct sc_screen *screen);
 
+// show the window
+void
+sc_screen_show_window(struct sc_screen *screen);
+
 // switch the fullscreen mode
 void
 sc_screen_switch_fullscreen(struct sc_screen *screen);

doc/shortcuts.md

@@ -52,6 +52,7 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | Inject computer clipboard text              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
  | Open keyboard settings (HID keyboard only)  | <kbd>MOD</kbd>+<kbd>k</kbd>
  | Enable/disable FPS counter (on stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Hides the window                            | <kbd>MOD</kbd>+<kbd>d</kbd>
  | Pinch-to-zoom/rotate                        | <kbd>Ctrl</kbd>+_click-and-move_
  | Tilt (slide vertically with 2 fingers)      | <kbd>Shift</kbd>+_click-and-move_
  | Drag & drop APK file                        | Install APK from computer