Add option to disable clipboard autosync

By default, scrcpy automatically synchronizes the computer clipboard to
the device clipboard before injecting Ctrl+v, and the device clipboard
to the computer clipboard whenever it changes.

This new option --no-clipboard-autosync disables this automatic
synchronization.

Fixes #2228 <https://github.com/Genymobile/scrcpy/issues/2228>
PR #2817 <https://github.com/Genymobile/scrcpy/pull/2817>

app/src/cli.c

@@ -49,6 +49,7 @@
 #define OPT_V4L2_BUFFER            1029
 #define OPT_TUNNEL_HOST            1030
 #define OPT_TUNNEL_PORT            1031
+#define OPT_NO_CLIPBOARD_AUTOSYNC  1032
 
 struct sc_option {
     char shortopt;
@@ -208,6 +209,15 @@ static const struct sc_option options[] = {
                 "is preserved.\n"
                 "Default is 0 (unlimited).",
     },
+    {
+        .longopt_id = OPT_NO_CLIPBOARD_AUTOSYNC,
+        .longopt = "no-clipboard-autosync",
+        .text = "By default, scrcpy automatically synchronizes the computer "
+                "clipboard to the device clipboard before injecting Ctrl+v, "
+                "and the device clipboard to the computer clipboard whenever "
+                "it changes.\n"
+                "This option disables this automatic synchronization."
+    },
     {
         .shortopt = 'n',
         .longopt = "no-control",
@@ -1364,6 +1374,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                     return false;
                 }
                 break;
+            case OPT_NO_CLIPBOARD_AUTOSYNC:
+                opts->clipboard_autosync = false;
+                break;
 #ifdef HAVE_V4L2
             case OPT_V4L2_SINK:
                 opts->v4l2_device = optarg;

app/src/input_manager.c

@@ -66,6 +66,7 @@ input_manager_init(struct input_manager *im, struct controller *controller,
     im->control = options->control;
     im->forward_all_clicks = options->forward_all_clicks;
     im->legacy_paste = options->legacy_paste;
+    im->clipboard_autosync = options->clipboard_autosync;
 
     const struct sc_shortcut_mods *shortcut_mods = &options->shortcut_mods;
     assert(shortcut_mods->count);
@@ -518,7 +519,7 @@ input_manager_process_key(struct input_manager *im,
 
     uint64_t ack_to_wait = SC_SEQUENCE_INVALID;
     bool is_ctrl_v = ctrl && !shift && keycode == SDLK_v && down && !repeat;
-    if (is_ctrl_v) {
+    if (im->clipboard_autosync && is_ctrl_v) {
         if (im->legacy_paste) {
             // inject the text as input events
             clipboard_paste(controller);

app/src/input_manager.h

@@ -24,6 +24,7 @@ struct input_manager {
     bool control;
     bool forward_all_clicks;
     bool legacy_paste;
+    bool clipboard_autosync;
 
     struct {
         unsigned data[SC_MAX_SHORTCUT_MODS];

app/src/options.c

@@ -53,4 +53,5 @@ const struct scrcpy_options scrcpy_options_default = {
     .forward_all_clicks = false,
     .legacy_paste = false,
     .power_off_on_close = false,
+    .clipboard_autosync = true,
 };

app/src/options.h

@@ -108,6 +108,7 @@ struct scrcpy_options {
     bool forward_all_clicks;
     bool legacy_paste;
     bool power_off_on_close;
+    bool clipboard_autosync;
 };
 
 extern const struct scrcpy_options scrcpy_options_default;

app/src/scrcpy.c

@@ -364,6 +364,7 @@ scrcpy(struct scrcpy_options *options) {
         .encoder_name = options->encoder_name,
         .force_adb_forward = options->force_adb_forward,
         .power_off_on_close = options->power_off_on_close,
+        .clipboard_autosync = options->clipboard_autosync,
     };
 
     static const struct sc_server_callbacks cbs = {

app/src/server.c

@@ -186,6 +186,7 @@ execute_server(struct sc_server *server,
         params->codec_options ? params->codec_options : "-",
         params->encoder_name ? params->encoder_name : "-",
         params->power_off_on_close ? "true" : "false",
+        params->clipboard_autosync ? "true" : "false",
     };
 #ifdef SERVER_DEBUGGER
     LOGI("Server debugger waiting for a client on device port "

app/src/server.h

@@ -41,6 +41,7 @@ struct sc_server_params {
     bool stay_awake;
     bool force_adb_forward;
     bool power_off_on_close;
+    bool clipboard_autosync;
 };
 
 struct sc_server {