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window: Keep track of preferred output

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Remember the last monitor a window was moved to by user action and
try to move it back on monitor changes; this should match user
expectations much better when a monitor is unplugged temporarily.

https://bugzilla.gnome.org/show_bug.cgi?id=731760
This commit is contained in:
Florian Müllner 2014-06-13 22:28:26 +02:00
parent 048ba353c4
commit 00c7a27732
2 changed files with 35 additions and 14 deletions
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1
src/core/window-private.h
View File

@ -166,6 +166,7 @@ struct _MetaWindow
* that to toggle between normal/tiled or maximized/tiled states. */
guint saved_maximize : 1;
int tile_monitor_number;
int preferred_output_id;
/* Whether we're shaded */
guint shaded : 1;

50
src/core/window.c
View File

@ -965,6 +965,7 @@ _meta_window_shared_new (MetaDisplay *display,
window->compositor_private = NULL;
window->monitor = meta_screen_get_monitor_for_window (window->screen, window);
window->preferred_output_id = window->monitor->output_id;
window->tile_match = NULL;
@ -3549,13 +3550,29 @@ meta_window_get_monitor (MetaWindow *window)
return window->monitor->number;
}
static MetaMonitorInfo *
find_monitor_by_id (MetaWindow *window,
guint id)
{
int i;
for (i = 0; i < window->screen->n_monitor_infos; i++)
{
MetaMonitorInfo *info = &window->screen->monitor_infos[i];
if (info->output_id != 0 && info->output_id == id)
return info;
}
return NULL;
}
/* This is called when the monitor setup has changed. The window->monitor
* reference is still "valid", but refer to the previous monitor setup */
void
meta_window_update_for_monitors_changed (MetaWindow *window)
{
const MetaMonitorInfo *old, *new;
int i;
if (window->type == META_WINDOW_DESKTOP)
return;
@ -3568,22 +3585,17 @@ meta_window_update_for_monitors_changed (MetaWindow *window)
old = window->monitor;
/* Start on primary */
/* Try the preferred output first */
new = find_monitor_by_id (window, window->preferred_output_id);
/* Otherwise, try to find the old output on a new monitor */
if (!new)
new = find_monitor_by_id (window, old->output_id);
/* Fall back to primary if everything else failed */
if (!new)
new = &window->screen->monitor_infos[window->screen->primary_monitor_index];
/* But, if we can find the old output on a new monitor, use that */
for (i = 0; i < window->screen->n_monitor_infos; i++)
{
MetaMonitorInfo *info = &window->screen->monitor_infos[i];
if (info->output_id != 0 &&
info->output_id == old->output_id)
{
new = info;
break;
}
}
if (window->tile_mode != META_TILE_NONE)
window->tile_monitor_number = new->number;
@ -3665,6 +3677,7 @@ meta_window_move_resize_internal (MetaWindow *window,
*/
gboolean did_placement;
guint old_output_id;
MetaRectangle unconstrained_rect;
MetaRectangle constrained_rect;
MetaMoveResizeResultFlags result = 0;
@ -3749,8 +3762,14 @@ meta_window_move_resize_internal (MetaWindow *window,
did_placement);
}
old_output_id = window->monitor->output_id;
meta_window_update_monitor (window);
if (old_output_id != window->monitor->output_id &&
flags & META_IS_MOVE_ACTION && flags & META_IS_USER_ACTION)
window->preferred_output_id = window->monitor->output_id;
if ((result & META_MOVE_RESIZE_RESULT_FRAME_SHAPE_CHANGED) && window->frame_bounds)
{
cairo_region_destroy (window->frame_bounds);
@ -3869,6 +3888,7 @@ meta_window_move_to_monitor (MetaWindow *window,
window->tile_monitor_number = monitor;
meta_window_move_between_rects (window, &old_area, &new_area);
window->preferred_output_id = window->monitor->output_id;
if (window->fullscreen || window->override_redirect)
meta_screen_queue_check_fullscreen (window->screen);