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Handle _NET_WM_STATE_STICKY, but only for floating containers. If this atom is set, the floating window will always be automatically moved to the currently active workspace of the output that it is on. This is the equivalent of a sticky note stuck to the monitor.

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We will respect this atom upon managing a window as well as when we receive a request that changes the sticky state.

fixes #1455
This commit is contained in:
Ingo Bürk
2015-08-23 13:36:12 +02:00
parent 4d6f8b1329
commit 2c338b6ae2
11 changed files with 92 additions and 2 deletions
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39
src/workspace.c
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@ -450,6 +450,45 @@ static void _workspace_show(Con *workspace) {
/* Update the EWMH hints */
ewmh_update_current_desktop();
/* Floating containers which are sticky need to be moved to the new workspace,
* but only on the same output. */
if (current != NULL && old_output == new_output) {
Con *prev = focused;
Con *child;
/* We can't simply iterate over the floating containers since moving a
* sticky container to the target workspace will modify that list.
* Instead, we first count the number of sticky containers, then memorize
* all of them and finally loop over that list to move them to the new
* workspace. */
int num_sticky = 0;
TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
if (con_is_sticky(child))
num_sticky++;
}
Con *sticky_cons[num_sticky];
int ctr = 0;
TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
if (con_is_sticky(child))
sticky_cons[ctr++] = child;
}
for (int i = 0; i < num_sticky; i++) {
con_move_to_workspace(sticky_cons[i], workspace, true, false);
/* We want sticky containers to be at the end of the focus head. */
TAILQ_REMOVE(&(workspace->focus_head), sticky_cons[i], focused);
TAILQ_INSERT_TAIL(&(workspace->focus_head), sticky_cons[i], focused);
}
/* Focus the correct container since moving the sticky containers
* changed the focus. However, if no container was focused before,
* we can leave the focus at the sticky container. */
if (prev != croot)
con_focus(prev);
}
}
/*