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fix multi monitors

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If you don't recalculate the monitor's geometry before arranging,
clients get arranged in the first monitor. I don't understand why this
fixes the bug since tile() uses m->w rather than m->m, nor why it needs
to be recalculated after creating the monitor but sway does it too.

Although not necessary to fix the bug I also made arrangelayer() do like
sway again and recalculate usable_area instead of reusing m->m, since
m->m seems to be incorrect until it gets recalculated shortly after in
arrange(), so I suspect that leaving usable_area = m->m will cause
issues under certain circumstances.

Someone with a multi-monitor setup or better knowledge of Wayland may be
able to figure out the cause of the bug. For now, this makes layer shell
work.
This commit is contained in:
Guido Cella 2020-09-08 10:28:29 +02:00
parent 79f3bbaf38
commit 69847872bb
1 changed files with 5 additions and 1 deletions
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6
dwl.c
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@ -463,6 +463,7 @@ applyrules(Client *c)
void
arrange(Monitor *m)
{
m->m = *wlr_output_layout_get_box(output_layout, m->wlr_output);
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
/* XXX recheck pointer focus here... or in resize()? */
@ -549,7 +550,7 @@ arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, bool
void
arrangelayers(Monitor *m)
{
struct wlr_box usable_area = m->m;
struct wlr_box usable_area = { 0 };
uint32_t layers_above_shell[] = {
ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY,
ZWLR_LAYER_SHELL_V1_LAYER_TOP,
@ -558,6 +559,9 @@ arrangelayers(Monitor *m)
LayerSurface *layersurface;
struct wlr_keyboard *kb = wlr_seat_get_keyboard(seat);
wlr_output_effective_resolution(m->wlr_output,
&usable_area.width, &usable_area.height);
// Arrange exclusive surfaces from top->bottom
arrangelayer(m, &m->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
&usable_area, true);