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a68b8e9595
On X11, the stage itself is backed by an XWindow, and moving the
input focus elsewhere will bypass any Clutter-level grabs.
This effectively allows newly opened windows to steal the focus
from gnome-shell itself, which is clearly undesirable. To prevent
that, only allow moving the X11 focus to a Window when no grab is
in place, just like commit 50e89e376 did for the stage focus.
But particularly the updating of x11_display->focus_xwindow is not
prevented. Since it's more consistent to the MetaDisplay/MetaX11Display
dual focus tracking and across Wayland/X11 backends, ensure the X11
input focus is actually set on the last focus Window after the
grabs are gone and windows became interactable again.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2832>
286 lines
9.9 KiB
C
286 lines
9.9 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* Mutter X display handler */
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/*
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* Copyright (C) 2001 Havoc Pennington
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* Copyright (C) 2002 Red Hat, Inc.
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* Copyright (C) 2003 Rob Adams
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* Copyright (C) 2004-2006 Elijah Newren
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef META_X11_DISPLAY_PRIVATE_H
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#define META_X11_DISPLAY_PRIVATE_H
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#include <glib.h>
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#include <gdk/gdk.h>
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#include <X11/Xlib.h>
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#include "backends/meta-monitor-manager-private.h"
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#include "core/display-private.h"
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#include "meta/common.h"
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#include "meta/meta-selection-source.h"
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#include "meta/types.h"
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#include "meta/meta-x11-display.h"
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#include "meta-startup-notification-x11.h"
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#include "meta-x11-stack-private.h"
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#include "x11/meta-sync-counter.h"
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/* This is basically a bogus number, just has to be large enough
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* to handle the expected case of the alt+tab operation, where
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* we want to ignore serials from UnmapNotify on the tab popup,
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* and the LeaveNotify/EnterNotify from the pointer ungrab. It
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* also has to be big enough to hold ignored serials from the point
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* where we reshape the stage to the point where we get events back.
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*/
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#define N_IGNORED_CROSSING_SERIALS 10
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typedef struct _MetaGroupPropHooks MetaGroupPropHooks;
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typedef struct _MetaWindowPropHooks MetaWindowPropHooks;
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typedef gboolean (*MetaAlarmFilter) (MetaX11Display *x11_display,
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XSyncAlarmNotifyEvent *event,
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gpointer data);
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typedef struct _MetaX11AlarmFilter
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{
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MetaAlarmFilter filter;
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gpointer user_data;
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} MetaX11AlarmFilter;
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struct _MetaX11Display
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{
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GObject parent;
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MetaDisplay *display;
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GdkDisplay *gdk_display;
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char *name;
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char *screen_name;
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Display *xdisplay;
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Window xroot;
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int default_depth;
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Visual *default_xvisual;
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guint32 timestamp;
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/* Pull in all the names of atoms as fields; we will intern them when the
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* class is constructed.
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*/
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#define item(x) Atom atom_##x;
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#include "x11/atomnames.h"
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#undef item
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Window leader_window;
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Window timestamp_pinging_window;
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/* The window and serial of the most recent FocusIn event. */
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Window server_focus_window;
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gulong server_focus_serial;
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/* For windows we've focused that don't necessarily have an X window,
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* like the no_focus_window or the stage X window. */
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Window focus_xwindow;
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gulong focus_serial;
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/* This window holds the focus when we don't want to focus
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* any actual clients
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*/
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Window no_focus_window;
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/* Instead of unmapping withdrawn windows we can leave them mapped
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* and restack them below a guard window. When using a compositor
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* this allows us to provide live previews of unmapped windows */
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Window guard_window;
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Window wm_sn_selection_window;
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Atom wm_sn_atom;
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guint32 wm_sn_timestamp;
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guint display_close_idle;
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guint32 xselectionclear_timestamp;
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Window wm_cm_selection_window;
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Window composite_overlay_window;
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GHashTable *xids;
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GHashTable *alarms;
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gboolean has_xinerama_indices;
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/* Managed by group.c */
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GHashTable *groups_by_leader;
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/* Managed by window-props.c */
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MetaWindowPropHooks *prop_hooks_table;
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GHashTable *prop_hooks;
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int n_prop_hooks;
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/* Managed by group-props.c */
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MetaGroupPropHooks *group_prop_hooks;
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int xkb_base_event_type;
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guint32 last_bell_time;
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GPtrArray *alarm_filters;
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GSubprocess *frames_client;
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GCancellable *frames_client_cancellable;
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struct {
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Window xwindow;
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guint timeout_id;
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MetaSelectionSource *owners[META_N_SELECTION_TYPES];
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GCancellable *cancellables[META_N_SELECTION_TYPES];
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GList *input_streams;
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GList *output_streams;
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} selection;
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/* If true, server->focus_serial refers to us changing the focus; in
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* this case, we can ignore focus events that have exactly focus_serial,
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* since we take care to make another request immediately afterwards.
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* But if focus is being changed by another client, we have to accept
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* multiple events with the same serial.
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*/
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guint focused_by_us : 1;
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guint keys_grabbed : 1;
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guint closing : 1;
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/* serials of leave/unmap events that may
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* correspond to an enter event we should
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* ignore
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*/
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unsigned long ignored_crossing_serials[N_IGNORED_CROSSING_SERIALS];
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/* we use property updates as sentinels for certain window focus events
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* to avoid some race conditions on EnterNotify events
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*/
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int sentinel_counter;
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int composite_event_base;
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int composite_error_base;
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int composite_major_version;
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int composite_minor_version;
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int damage_event_base;
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int damage_error_base;
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int xfixes_event_base;
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int xfixes_error_base;
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int xinput_error_base;
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int xinput_event_base;
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int xinput_opcode;
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int xsync_event_base;
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int xsync_error_base;
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int shape_event_base;
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int shape_error_base;
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unsigned int have_xsync : 1;
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#define META_X11_DISPLAY_HAS_XSYNC(x11_display) ((x11_display)->have_xsync)
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unsigned int have_shape : 1;
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#define META_X11_DISPLAY_HAS_SHAPE(x11_display) ((x11_display)->have_shape)
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unsigned int have_composite : 1;
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unsigned int have_damage : 1;
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#define META_X11_DISPLAY_HAS_COMPOSITE(x11_display) ((x11_display)->have_composite)
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#define META_X11_DISPLAY_HAS_DAMAGE(x11_display) ((x11_display)->have_damage)
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MetaX11StartupNotification *startup_notification;
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MetaX11Stack *x11_stack;
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XserverRegion empty_region;
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};
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MetaX11Display *meta_x11_display_new (MetaDisplay *display, GError **error);
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void meta_x11_display_restore_active_workspace (MetaX11Display *x11_display);
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Window meta_x11_display_create_offscreen_window (MetaX11Display *x11_display,
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Window parent,
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long valuemask);
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Cursor meta_x11_display_create_x_cursor (MetaX11Display *x11_display,
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MetaCursor cursor);
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void meta_x11_display_reload_cursor (MetaX11Display *x11_display);
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MetaWindow *meta_x11_display_lookup_x_window (MetaX11Display *x11_display,
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Window xwindow);
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void meta_x11_display_register_x_window (MetaX11Display *x11_display,
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Window *xwindowp,
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MetaWindow *window);
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void meta_x11_display_unregister_x_window (MetaX11Display *x11_display,
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Window xwindow);
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MetaSyncCounter * meta_x11_display_lookup_sync_alarm (MetaX11Display *x11_display,
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XSyncAlarm alarm);
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void meta_x11_display_register_sync_alarm (MetaX11Display *x11_display,
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XSyncAlarm *alarmp,
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MetaSyncCounter *sync_counter);
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void meta_x11_display_unregister_sync_alarm (MetaX11Display *x11_display,
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XSyncAlarm alarm);
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META_EXPORT
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MetaX11AlarmFilter * meta_x11_display_add_alarm_filter (MetaX11Display *x11_display,
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MetaAlarmFilter filter,
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gpointer user_data);
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META_EXPORT
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void meta_x11_display_remove_alarm_filter (MetaX11Display *x11_display,
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MetaX11AlarmFilter *alarm_filter);
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void meta_x11_display_create_guard_window (MetaX11Display *x11_display);
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/* make a request to ensure the event serial has changed */
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void meta_x11_display_increment_event_serial (MetaX11Display *x11_display);
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guint32 meta_x11_display_get_current_time_roundtrip (MetaX11Display *x11_display);
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void meta_x11_display_set_input_focus_xwindow (MetaX11Display *x11_display,
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Window window,
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guint32 timestamp);
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int meta_x11_display_logical_monitor_to_xinerama_index (MetaX11Display *x11_display,
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MetaLogicalMonitor *logical_monitor);
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MetaLogicalMonitor *meta_x11_display_xinerama_index_to_logical_monitor (MetaX11Display *x11_display,
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int xinerama_index);
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void meta_x11_display_update_workspace_layout (MetaX11Display *x11_display);
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void meta_x11_display_update_workspace_names (MetaX11Display *x11_display);
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void meta_x11_display_increment_focus_sentinel (MetaX11Display *x11_display);
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void meta_x11_display_decrement_focus_sentinel (MetaX11Display *x11_display);
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gboolean meta_x11_display_focus_sentinel_clear (MetaX11Display *x11_display);
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void meta_x11_display_update_focus_window (MetaX11Display *x11_display,
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Window xwindow,
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gulong serial,
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gboolean focused_by_us);
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void meta_x11_display_set_input_focus (MetaX11Display *x11_display,
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MetaWindow *window,
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gboolean focus_frame,
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uint32_t timestamp);
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void meta_x11_display_sync_input_focus (MetaX11Display *x11_display);
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MetaDisplay * meta_x11_display_get_display (MetaX11Display *x11_display);
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#endif /* META_X11_DISPLAY_PRIVATE_H */
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