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constraints: Try place popup on the same monitor as the anchor rect

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When we'd place a popup, if the initially calculated position would be
on another monitor than the anchor rect on the parent window, the
later constrained position would end up on another monitor than the
parent window. This could for example happen if a popup menu opening
towards the right was opened very close to the screen edge of a right
most monitor in a two side by side monitor setup.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1783
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1768
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2252>
This commit is contained in:
Jonas Ådahl 2022-01-20 11:36:17 +01:00 committed by Marge Bot
parent b8bd5977be
commit 0205398d96
1 changed files with 50 additions and 17 deletions
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67
src/core/constraints.c
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@ -350,6 +350,7 @@ setup_constraint_info (ConstraintInfo *info,
meta_backend_get_monitor_manager (backend);
MetaLogicalMonitor *logical_monitor;
MetaWorkspace *cur_workspace;
MetaPlacementRule *placement_rule;
info->orig = *orig;
info->current = *new;
@ -405,9 +406,41 @@ setup_constraint_info (ConstraintInfo *info,
if (!info->is_user_action)
info->fixed_directions = FIXED_DIRECTION_NONE;
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&info->current);
placement_rule = meta_window_get_placement_rule (window);
if (placement_rule)
{
MetaRectangle rect;
MetaRectangle parent_rect;
rect = placement_rule->anchor_rect;
parent_rect = placement_rule->parent_rect;
rect.x += parent_rect.x;
rect.y += parent_rect.y;
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&rect);
if (!logical_monitor)
{
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&parent_rect);
}
}
else
{
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&info->current);
}
if (!logical_monitor)
{
g_warning ("No sensible logical monitor could be used for constraining");
logical_monitor =
meta_monitor_manager_get_primary_logical_monitor (monitor_manager);
}
meta_window_get_work_area_for_logical_monitor (window,
logical_monitor,
&info->work_area_monitor);
@ -527,23 +560,23 @@ place_window_if_needed(MetaWindow *window,
{
meta_window_place (window, orig_rect.x, orig_rect.y,
&placed_rect.x, &placed_rect.y);
/* placing the window may have changed the monitor. Find the
* new monitor and update the ConstraintInfo
*/
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&placed_rect);
info->entire_monitor = logical_monitor->rect;
meta_window_get_work_area_for_logical_monitor (window,
logical_monitor,
&info->work_area_monitor);
cur_workspace = window->display->workspace_manager->active_workspace;
info->usable_monitor_region =
meta_workspace_get_onmonitor_region (cur_workspace, logical_monitor);
}
did_placement = TRUE;
/* placing the window may have changed the monitor. Find the
* new monitor and update the ConstraintInfo
*/
logical_monitor =
meta_monitor_manager_get_logical_monitor_from_rect (monitor_manager,
&placed_rect);
info->entire_monitor = logical_monitor->rect;
meta_window_get_work_area_for_logical_monitor (window,
logical_monitor,
&info->work_area_monitor);
cur_workspace = window->display->workspace_manager->active_workspace;
info->usable_monitor_region =
meta_workspace_get_onmonitor_region (cur_workspace, logical_monitor);
info->current.x = placed_rect.x;
info->current.y = placed_rect.y;