Bugfix: Properly ignore UnmapNotify events (especially for floating windows)

This fixes the bug which caused floating windows to be visible even when
switching to a different workspace.

Instead of ignoring a specific sequence, we now set an ignore_unmap counter for
each container. (So, should containers be closed too early or stay open even if
they should be closed, we probably need to have a closer look at the counter.
At the moment, it is increased by one on reparenting and unmapping (for
workspace changes) and decremented by one on each UnmapNotify event).

This system is better because a sequence does not describe a single unmap or
reparent request but a request to X11 on the network layer -- which can contain
multiple requests.
This commit is contained in:
Michael Stapelberg
2010-11-20 19:11:43 +01:00
parent 131a2f8765
commit db651679c5
5 changed files with 106 additions and 8 deletions

View File

@ -444,8 +444,6 @@ int handle_screen_change(void *prophs, xcb_connection_t *conn,
*/
int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
bool ignored = event_is_ignored(event->sequence);
/* FIXME: we cannot ignore this sequence because more UnmapNotifys with the same sequence
* numbers but different window IDs may follow */
/* we need to ignore EnterNotify events which will be generated because a
@ -453,14 +451,24 @@ int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_noti
//add_ignore_event(event->sequence);
DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
if (ignored) {
DLOG("Ignoring UnmapNotify (generated by reparenting)\n");
unignore_event(event->sequence);
return 1;
}
Con *con = con_by_window_id(event->window);
if (con == NULL) {
LOG("Not a managed window, ignoring\n");
/* This could also be an UnmapNotify for the frame. We need to
* decrement the ignore_unmap counter. */
con = con_by_frame_id(event->window);
if (con == NULL) {
LOG("Not a managed window, ignoring UnmapNotify event\n");
return 1;
}
if (con->ignore_unmap > 0)
con->ignore_unmap--;
DLOG("ignore_unmap = %d for frame of container %p\n", con->ignore_unmap, con);
return 1;
}
if (con->ignore_unmap > 0) {
DLOG("ignore_unmap = %d, dec\n", con->ignore_unmap);
con->ignore_unmap--;
return 1;
}