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frames: Handle lack of WM_DELETE_WINDOW in WM_PROTOCOLS

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It is expected that we XKillClient() those clients that do not handle
WM_DELETE_WINDOW messaging. Fixes closing glxgears.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2756>
This commit is contained in:
Carlos Garnacho 2022-12-10 01:51:59 +01:00 committed by Marge Bot
parent 08a4caff6f
commit 425c7652cf
1 changed files with 71 additions and 9 deletions
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80
src/frames/meta-frame.c
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@ -57,6 +57,53 @@ meta_frame_class_init (MetaFrameClass *klass)
{
}
static gboolean
client_window_has_wm_protocol (MetaFrame *frame,
Window client_window,
Atom protocol)
{
GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (frame));
Atom *wm_protocols, wm_protocols_atom;
int format;
Atom type;
unsigned long i, nitems, bytes_after;
gboolean found = FALSE;
gdk_x11_display_error_trap_push (display);
wm_protocols_atom =
gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS");
if (XGetWindowProperty (gdk_x11_display_get_xdisplay (display),
client_window,
wm_protocols_atom,
0, G_MAXLONG, False,
XA_ATOM,
&type, &format,
&nitems, &bytes_after,
(unsigned char **) &wm_protocols) != Success)
{
gdk_x11_display_error_trap_pop_ignored (display);
return FALSE;
}
if (gdk_x11_display_error_trap_pop (display))
return FALSE;
for (i = 0; i < nitems; i++)
{
if (wm_protocols[i] == protocol)
{
found = TRUE;
break;
}
}
XFree (wm_protocols);
return found;
}
static gboolean
on_frame_close_request (GtkWindow *window,
gpointer user_data)
@ -65,6 +112,7 @@ on_frame_close_request (GtkWindow *window,
GtkWidget *content;
XClientMessageEvent ev;
Window client_xwindow;
Atom delete_window_atom;
content = gtk_window_get_child (window);
if (!content)
@ -73,18 +121,32 @@ on_frame_close_request (GtkWindow *window,
client_xwindow =
meta_frame_content_get_window (META_FRAME_CONTENT (content));
ev.type = ClientMessage;
ev.window = client_xwindow;
ev.message_type =
gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS");
ev.format = 32;
ev.data.l[0] =
delete_window_atom =
gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW");
ev.data.l[1] = 0; /* FIXME: missing timestamp */
gdk_x11_display_error_trap_push (display);
XSendEvent (gdk_x11_display_get_xdisplay (display),
client_xwindow, False, 0, (XEvent*) &ev);
if (client_window_has_wm_protocol (META_FRAME (window),
client_xwindow,
delete_window_atom))
{
ev.type = ClientMessage;
ev.window = client_xwindow;
ev.message_type =
gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS");
ev.format = 32;
ev.data.l[0] = delete_window_atom;
ev.data.l[1] = 0; /* FIXME: missing timestamp */
XSendEvent (gdk_x11_display_get_xdisplay (display),
client_xwindow, False, 0, (XEvent*) &ev);
}
else
{
XKillClient (gdk_x11_display_get_xdisplay (display),
client_xwindow);
}
gdk_x11_display_error_trap_pop_ignored (display);
return TRUE;