Grab mouse pointer with keyboard.

Changelog

@@ -5,6 +5,7 @@ unreleased
         - Allow user to specify background image.
         - Improved keybinding handling, allowing on-release and modifier only (#384).
     Bug fixes
+        - Grab mouse pointer with keyboard
 
 1.0.1
     Bug fixes

include/x11-helper.h

@@ -64,6 +64,7 @@ int monitor_get_smallest_size ( void );
  * Release keyboard.
  */
 void release_keyboard ( void );
+void release_pointer ( void );
 
 /**
  * @param w       xcb_window_t we want to grab keyboard on.
@@ -73,6 +74,7 @@ void release_keyboard ( void );
  * @return 1 when keyboard is grabbed, 0 not.
  */
 int take_keyboard ( xcb_window_t w );
+int take_pointer ( xcb_window_t w );
 
 /**
  * @param mask The mask to canonilize

source/rofi.c

@@ -151,6 +151,7 @@ static void teardown ( int pfd )
 
     // Release the window.
     release_keyboard ( );
+    release_pointer ( );
 
     // Cleanup view
     rofi_view_cleanup ();

source/view.c

@@ -1680,6 +1680,7 @@ RofiViewState *rofi_view_create ( Mode *sw,
             rofi_view_free ( state );
             return NULL;
         }
+        take_pointer ( xcb_stuff_get_root_window ( xcb ) );
     }
     TICK_N ( "Grab keyboard" );
     // Get active monitor size.
@@ -1836,6 +1837,7 @@ int rofi_view_error_dialog ( const char *msg, int markup )
             fprintf ( stderr, "Failed to grab keyboard, even after %d uS.", 500 * 1000 );
             return FALSE;
         }
+        take_pointer ( xcb_stuff_get_root_window ( xcb ) );
     }
 
     rofi_view_calculate_window_and_element_width ( state );

source/x11-helper.c

@@ -360,7 +360,28 @@ void monitor_active ( workarea *mon )
 
     monitor_dimensions ( 0, 0, mon );
 }
-
+int take_pointer ( xcb_window_t w )
+{
+    for ( int i = 0; i < 500; i++ ) {
+        if ( xcb_connection_has_error ( xcb->connection ) ) {
+            fprintf ( stderr, "Connection has error\n" );
+            exit ( EXIT_FAILURE );
+        }
+        xcb_grab_pointer_cookie_t cc = xcb_grab_pointer ( xcb->connection, 1, w, XCB_EVENT_MASK_BUTTON_RELEASE,
+                                                          XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, w, XCB_NONE, XCB_CURRENT_TIME );
+        xcb_grab_pointer_reply_t  *r = xcb_grab_pointer_reply ( xcb->connection, cc, NULL );
+        if ( r ) {
+            if ( r->status == XCB_GRAB_STATUS_SUCCESS ) {
+                free ( r );
+                return 1;
+            }
+            free ( r );
+        }
+        usleep ( 1000 );
+    }
+    fprintf ( stderr, "Failed to grab pointer.\n" );
+    return 0;
+}
 int take_keyboard ( xcb_window_t w )
 {
     for ( int i = 0; i < 500; i++ ) {
@@ -389,6 +410,10 @@ void release_keyboard ( void )
 {
     xcb_ungrab_keyboard ( xcb->connection, XCB_CURRENT_TIME );
 }
+void release_pointer ( void )
+{
+    xcb_ungrab_pointer ( xcb->connection, XCB_CURRENT_TIME );
+}
 
 static unsigned int x11_find_mod_mask ( xkb_stuff *xkb, ... )
 {