[mutter/wip/carlosg/xwayland-on-demand: 1/15] core: Ensure passive key grabs are only set up on X11

[Carlos Garnacho <carlosg src gnome org>]

commit 3c8d4171bf37741efa2d2e7d05c6ac5f1b329f0a
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri May 24 19:40:07 2019 +0200

    core: Ensure passive key grabs are only set up on X11
    
    We don't strictly need it for wayland compositors, yet there are
    paths where we try to trigger those passive grabs there. Just
    skip those on the high level code (where "is it x11" decisions
    are taken) like we do with passive button grabs.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/709

 src/core/keybindings.c | 45 +++++++++++++++++++++++++++++----------------
 1 file changed, 29 insertions(+), 16 deletions(-)
---
diff --git a/src/core/keybindings.c b/src/core/keybindings.c
index e21d4568e..c707cb824 100644
--- a/src/core/keybindings.c
+++ b/src/core/keybindings.c
@@ -1570,6 +1570,8 @@ meta_window_grab_keys (MetaWindow  *window)
   MetaDisplay *display = window->display;
   MetaKeyBindingManager *keys = &display->key_binding_manager;
 
+  if (!meta_is_wayland_compositor ())
+    return;
   if (window->all_keys_grabbed)
     return;
 
@@ -1604,7 +1606,7 @@ meta_window_grab_keys (MetaWindow  *window)
 void
 meta_window_ungrab_keys (MetaWindow  *window)
 {
-  if (window->keys_grabbed)
+  if (!meta_is_wayland_compositor () && window->keys_grabbed)
     {
       MetaDisplay *display = window->display;
       MetaKeyBindingManager *keys = &display->key_binding_manager;
@@ -1663,7 +1665,11 @@ meta_display_grab_accelerator (MetaDisplay         *display,
       return META_KEYBINDING_ACTION_NONE;
     }
 
-  meta_change_keygrab (keys, display->x11_display->xroot, TRUE, &resolved_combo);
+  if (!meta_is_wayland_compositor ())
+    {
+      meta_change_keygrab (keys, display->x11_display->xroot,
+                           TRUE, &resolved_combo);
+    }
 
   grab = g_new0 (MetaKeyGrab, 1);
   grab->action = next_dynamic_keybinding_action ();
@@ -1709,8 +1715,11 @@ meta_display_ungrab_accelerator (MetaDisplay *display,
     {
       int i;
 
-      meta_change_keygrab (keys, display->x11_display->xroot,
-                           FALSE, &binding->resolved_combo);
+      if (!meta_is_wayland_compositor ())
+        {
+          meta_change_keygrab (keys, display->x11_display->xroot,
+                               FALSE, &binding->resolved_combo);
+        }
 
       for (i = 0; i < binding->resolved_combo.len; i++)
         {
@@ -1788,7 +1797,7 @@ meta_window_grab_all_keys (MetaWindow  *window,
                            guint32      timestamp)
 {
   Window grabwindow;
-  gboolean retval;
+  gboolean retval = TRUE;
 
   if (window->all_keys_grabbed)
     return FALSE;
@@ -1804,25 +1813,29 @@ meta_window_grab_all_keys (MetaWindow  *window,
               window->desc);
   meta_window_focus (window, timestamp);
 
-  grabwindow = meta_window_x11_get_toplevel_xwindow (window);
-
-  meta_topic (META_DEBUG_KEYBINDINGS,
-              "Grabbing all keys on window %s\n", window->desc);
-  retval = grab_keyboard (grabwindow, timestamp, XIGrabModeAsync);
-  if (retval)
+  if (!meta_is_wayland_compositor ())
     {
-      window->keys_grabbed = FALSE;
-      window->all_keys_grabbed = TRUE;
-      window->grab_on_frame = window->frame != NULL;
+      grabwindow = meta_window_x11_get_toplevel_xwindow (window);
+
+      meta_topic (META_DEBUG_KEYBINDINGS,
+                  "Grabbing all keys on window %s\n", window->desc);
+      retval = grab_keyboard (grabwindow, timestamp, XIGrabModeAsync);
+      if (retval)
+        {
+          window->keys_grabbed = FALSE;
+          window->all_keys_grabbed = TRUE;
+          window->grab_on_frame = window->frame != NULL;
+        }
     }
 
   return retval;
 }
 
 void
-meta_window_ungrab_all_keys (MetaWindow *window, guint32 timestamp)
+meta_window_ungrab_all_keys (MetaWindow *window,
+                             guint32     timestamp)
 {
-  if (window->all_keys_grabbed)
+  if (!meta_is_wayland_compositor () && window->all_keys_grabbed)
     {
       ungrab_keyboard (timestamp);