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Handle monitor unplug 

Floating widndows with "x < removed monitor's width" aren't resized
(they used to disappear in negative coordinates).

Actually delete monitors when they are unplugged, recalculate sgeom and
give a new monitor to clients that were on the removed one with setmon()

arrangefloat() funcion has been exploded to save iterations in
cleanupmon().

Also if a monitor that supports auto suspension is turned off, dwl will
count it as unplugged (it will become unreachable and all clients will
be moved to the leftmost monitor). However, if at least one monitor
isn't plugged in, dwl will still crash the same as before.

Unlike sway, when the output configuration is changed and restored,
(unplug + plug the same monitor for example) previous application
positions aren't kept. This is due to the fact that on sway every
workspace is unique among all monitors.
This commit is contained in:
Stivvo 2020-09-14 17:40:14 +02:00
parent 537ad7e3fd
commit bece225934
1 changed files with 25 additions and 16 deletions
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41
dwl.c
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@ -195,7 +195,6 @@ static void applyexclusive(struct wlr_box *usable_area, uint32_t anchor,
int32_t margin_bottom, int32_t margin_left);
static void applyrules(Client *c);
static void arrange(Monitor *m);
static void arrangefloat(Monitor *m, int sign);
static void arrangelayer(Monitor *m, struct wl_list *list,
struct wlr_box *usable_area, bool exclusive);
static void arrangelayers(Monitor *m);
@ -470,17 +469,6 @@ arrange(Monitor *m)
/* XXX recheck pointer focus here... or in resize()? */
}
void
arrangefloat(Monitor *m, int sign)
{
Client *c;
wl_list_for_each(c, &clients, link) {
if (c->isfloating)
resize(c, c->geom.x + m->w.width * sign, c->geom.y,
c->geom.width, c->geom.height, 0);
}
}
void
arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, bool exclusive)
{
@ -699,13 +687,29 @@ void
cleanupmon(struct wl_listener *listener, void *data)
{
struct wlr_output *wlr_output = data;
Monitor *m = wlr_output->data;
Monitor *m = wlr_output->data, *newmon;
Client *c;
wl_list_remove(&m->destroy.link);
free(m);
wl_list_remove(&m->frame.link);
wl_list_remove(&m->link);
wlr_output_layout_remove(output_layout, m->wlr_output);
sgeom = *wlr_output_layout_get_box(output_layout, NULL);
updatemons();
arrangefloat(m, -1);
wl_list_for_each(newmon, &mons, link) {
wl_list_for_each(c, &clients, link) {
if (c->isfloating && c->geom.x > m->m.width) {
resize(c, c->geom.x - m->w.width, c->geom.y,
c->geom.width, c->geom.height, 0);
}
if (c->mon == m)
setmon(c, newmon, 0);
}
break;
}
free(m);
}
void
@ -836,7 +840,12 @@ createmon(struct wl_listener *listener, void *data)
updatemons();
wl_list_for_each(m, &mons, link) {
/* the first monitor in the list is the most recently added */
arrangefloat(m, 1);
Client *c;
wl_list_for_each(c, &clients, link) {
if (c->isfloating)
resize(c, c->geom.x + m->w.width, c->geom.y,
c->geom.width, c->geom.height, 0);
}
return;
}
}