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afce448281
mutter/src/core/events.c
Jasper St. Pierre afce448281 Kill meta_ui_add_event_func / remove_event_func 
The reason we don't simply use gdk_window_add_filter directly is
because of some twisted idea that any GDK symbol being used from
core/ is a layer violation. While we certainly want to keep any
serious GDK code out of ui/, event handling is quite important
to have in core/, so simply use a GDK event filter directly.
2014-03-30 22:55:01 -04:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2002, 2003, 2004 Red Hat, Inc.
* Copyright (C) 2003, 2004 Rob Adams
* Copyright (C) 2004-2006 Elijah Newren
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "events.h"
#include <X11/Xatom.h>
#include <X11/extensions/Xdamage.h>
#ifdef HAVE_SHAPE
#include <X11/extensions/shape.h>
#endif
#include <meta/errors.h>
#include "display-private.h"
#include "window-private.h"
#include "bell.h"
#include "workspace-private.h"
#include "meta-idle-monitor-private.h"
#include "x11/window-x11.h"
#include "x11/xprops.h"
#include "wayland/meta-wayland-private.h"
#include "meta-surface-actor-wayland.h"
static MetaWindow *
get_window_for_event (MetaDisplay *display,
const ClutterEvent *event)
{
ClutterActor *source;
if (display->grab_op != META_GRAB_OP_NONE)
return display->grab_window;
/* Always use the key focused window for key events. */
switch (event->type)
{
case CLUTTER_KEY_PRESS:
case CLUTTER_KEY_RELEASE:
return display->focus_window;
default:
break;
}
source = clutter_event_get_source (event);
if (META_IS_SURFACE_ACTOR (source))
return meta_surface_actor_get_window (META_SURFACE_ACTOR (source));
return NULL;
}
static XIEvent *
get_input_event (MetaDisplay *display,
XEvent *event)
{
if (event->type == GenericEvent &&
event->xcookie.extension == display->xinput_opcode)
{
XIEvent *input_event;
/* NB: GDK event filters already have generic events
* allocated, so no need to do XGetEventData() on our own
*/
input_event = (XIEvent *) event->xcookie.data;
switch (input_event->evtype)
{
case XI_Motion:
case XI_ButtonPress:
case XI_ButtonRelease:
if (((XIDeviceEvent *) input_event)->deviceid == META_VIRTUAL_CORE_POINTER_ID)
return input_event;
break;
case XI_KeyPress:
case XI_KeyRelease:
if (((XIDeviceEvent *) input_event)->deviceid == META_VIRTUAL_CORE_KEYBOARD_ID)
return input_event;
break;
case XI_FocusIn:
case XI_FocusOut:
if (((XIEnterEvent *) input_event)->deviceid == META_VIRTUAL_CORE_KEYBOARD_ID)
return input_event;
break;
case XI_Enter:
case XI_Leave:
if (((XIEnterEvent *) input_event)->deviceid == META_VIRTUAL_CORE_POINTER_ID)
return input_event;
break;
#ifdef HAVE_XI23
case XI_BarrierHit:
case XI_BarrierLeave:
if (((XIBarrierEvent *) input_event)->deviceid == META_VIRTUAL_CORE_POINTER_ID)
return input_event;
break;
#endif /* HAVE_XI23 */
default:
break;
}
}
return NULL;
}
static Window
xievent_get_modified_window (MetaDisplay *display,
XIEvent *input_event)
{
switch (input_event->evtype)
{
case XI_Motion:
case XI_ButtonPress:
case XI_ButtonRelease:
case XI_KeyPress:
case XI_KeyRelease:
return ((XIDeviceEvent *) input_event)->event;
case XI_FocusIn:
case XI_FocusOut:
case XI_Enter:
case XI_Leave:
return ((XIEnterEvent *) input_event)->event;
#ifdef HAVE_XI23
case XI_BarrierHit:
case XI_BarrierLeave:
return ((XIBarrierEvent *) input_event)->event;
#endif /* HAVE_XI23 */
}
return None;
}
/* Return the window this has to do with, if any, rather
* than the frame or root window that was selecting
* for substructure
*/
static Window
event_get_modified_window (MetaDisplay *display,
XEvent *event)
{
XIEvent *input_event = get_input_event (display, event);
if (input_event)
return xievent_get_modified_window (display, input_event);
switch (event->type)
{
case KeymapNotify:
case Expose:
case GraphicsExpose:
case NoExpose:
case VisibilityNotify:
case ResizeRequest:
case PropertyNotify:
case SelectionClear:
case SelectionRequest:
case SelectionNotify:
case ColormapNotify:
case ClientMessage:
return event->xany.window;
case CreateNotify:
return event->xcreatewindow.window;
case DestroyNotify:
return event->xdestroywindow.window;
case UnmapNotify:
return event->xunmap.window;
case MapNotify:
return event->xmap.window;
case MapRequest:
return event->xmaprequest.window;
case ReparentNotify:
return event->xreparent.window;
case ConfigureNotify:
return event->xconfigure.window;
case ConfigureRequest:
return event->xconfigurerequest.window;
case GravityNotify:
return event->xgravity.window;
case CirculateNotify:
return event->xcirculate.window;
case CirculateRequest:
return event->xcirculaterequest.window;
case MappingNotify:
return None;
default:
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display) &&
event->type == (display->shape_event_base + ShapeNotify))
{
XShapeEvent *sev = (XShapeEvent*) event;
return sev->window;
}
#endif
return None;
}
}
static guint32
event_get_time (MetaDisplay *display,
XEvent *event)
{
XIEvent *input_event = get_input_event (display, event);
if (input_event)
return input_event->time;
switch (event->type)
{
case PropertyNotify:
return event->xproperty.time;
case SelectionClear:
case SelectionRequest:
case SelectionNotify:
return event->xselection.time;
case KeymapNotify:
case Expose:
case GraphicsExpose:
case NoExpose:
case MapNotify:
case UnmapNotify:
case VisibilityNotify:
case ResizeRequest:
case ColormapNotify:
case ClientMessage:
case CreateNotify:
case DestroyNotify:
case MapRequest:
case ReparentNotify:
case ConfigureNotify:
case ConfigureRequest:
case GravityNotify:
case CirculateNotify:
case CirculateRequest:
case MappingNotify:
default:
return CurrentTime;
}
}
G_GNUC_UNUSED const char*
meta_event_detail_to_string (int d)
{
const char *detail = "???";
switch (d)
{
/* We are an ancestor in the A<->B focus change relationship */
case XINotifyAncestor:
detail = "NotifyAncestor";
break;
case XINotifyDetailNone:
detail = "NotifyDetailNone";
break;
/* We are a descendant in the A<->B focus change relationship */
case XINotifyInferior:
detail = "NotifyInferior";
break;
case XINotifyNonlinear:
detail = "NotifyNonlinear";
break;
case XINotifyNonlinearVirtual:
detail = "NotifyNonlinearVirtual";
break;
case XINotifyPointer:
detail = "NotifyPointer";
break;
case XINotifyPointerRoot:
detail = "NotifyPointerRoot";
break;
case XINotifyVirtual:
detail = "NotifyVirtual";
break;
}
return detail;
}
G_GNUC_UNUSED const char*
meta_event_mode_to_string (int m)
{
const char *mode = "???";
switch (m)
{
case XINotifyNormal:
mode = "NotifyNormal";
break;
case XINotifyGrab:
mode = "NotifyGrab";
break;
case XINotifyUngrab:
mode = "NotifyUngrab";
break;
case XINotifyWhileGrabbed:
mode = "NotifyWhileGrabbed";
break;
}
return mode;
}
G_GNUC_UNUSED static const char*
stack_mode_to_string (int mode)
{
switch (mode)
{
case Above:
return "Above";
case Below:
return "Below";
case TopIf:
return "TopIf";
case BottomIf:
return "BottomIf";
case Opposite:
return "Opposite";
}
return "Unknown";
}
#ifdef HAVE_XSYNC
G_GNUC_UNUSED static gint64
sync_value_to_64 (const XSyncValue *value)
{
gint64 v;
v = XSyncValueLow32 (*value);
v |= (((gint64)XSyncValueHigh32 (*value)) << 32);
return v;
}
G_GNUC_UNUSED static const char*
alarm_state_to_string (XSyncAlarmState state)
{
switch (state)
{
case XSyncAlarmActive:
return "Active";
case XSyncAlarmInactive:
return "Inactive";
case XSyncAlarmDestroyed:
return "Destroyed";
default:
return "(unknown)";
}
}
#endif /* HAVE_XSYNC */
G_GNUC_UNUSED static void
meta_spew_xi2_event (MetaDisplay *display,
XIEvent *input_event,
const char **name_p,
char **extra_p)
{
const char *name = NULL;
char *extra = NULL;
XIEnterEvent *enter_event = (XIEnterEvent *) input_event;
switch (input_event->evtype)
{
case XI_FocusIn:
name = "XI_FocusIn";
break;
case XI_FocusOut:
name = "XI_FocusOut";
break;
case XI_Enter:
name = "XI_Enter";
break;
case XI_Leave:
name = "XI_Leave";
break;
#ifdef HAVE_XI23
case XI_BarrierHit:
name = "XI_BarrierHit";
break;
case XI_BarrierLeave:
name = "XI_BarrierLeave";
break;
#endif /* HAVE_XI23 */
}
switch (input_event->evtype)
{
case XI_FocusIn:
case XI_FocusOut:
extra = g_strdup_printf ("detail: %s mode: %s\n",
meta_event_detail_to_string (enter_event->detail),
meta_event_mode_to_string (enter_event->mode));
break;
case XI_Enter:
case XI_Leave:
extra = g_strdup_printf ("win: 0x%lx root: 0x%lx mode: %s detail: %s focus: %d x: %g y: %g",
enter_event->event,
enter_event->root,
meta_event_mode_to_string (enter_event->mode),
meta_event_detail_to_string (enter_event->detail),
enter_event->focus,
enter_event->root_x,
enter_event->root_y);
break;
}
*name_p = name;
*extra_p = extra;
}
G_GNUC_UNUSED static void
meta_spew_core_event (MetaDisplay *display,
XEvent *event,
const char **name_p,
char **extra_p)
{
const char *name = NULL;
char *extra = NULL;
switch (event->type)
{
case KeymapNotify:
name = "KeymapNotify";
break;
case Expose:
name = "Expose";
break;
case GraphicsExpose:
name = "GraphicsExpose";
break;
case NoExpose:
name = "NoExpose";
break;
case VisibilityNotify:
name = "VisibilityNotify";
break;
case CreateNotify:
name = "CreateNotify";
extra = g_strdup_printf ("parent: 0x%lx window: 0x%lx",
event->xcreatewindow.parent,
event->xcreatewindow.window);
break;
case DestroyNotify:
name = "DestroyNotify";
extra = g_strdup_printf ("event: 0x%lx window: 0x%lx",
event->xdestroywindow.event,
event->xdestroywindow.window);
break;
case UnmapNotify:
name = "UnmapNotify";
extra = g_strdup_printf ("event: 0x%lx window: 0x%lx from_configure: %d",
event->xunmap.event,
event->xunmap.window,
event->xunmap.from_configure);
break;
case MapNotify:
name = "MapNotify";
extra = g_strdup_printf ("event: 0x%lx window: 0x%lx override_redirect: %d",
event->xmap.event,
event->xmap.window,
event->xmap.override_redirect);
break;
case MapRequest:
name = "MapRequest";
extra = g_strdup_printf ("window: 0x%lx parent: 0x%lx\n",
event->xmaprequest.window,
event->xmaprequest.parent);
break;
case ReparentNotify:
name = "ReparentNotify";
extra = g_strdup_printf ("window: 0x%lx parent: 0x%lx event: 0x%lx\n",
event->xreparent.window,
event->xreparent.parent,
event->xreparent.event);
break;
case ConfigureNotify:
name = "ConfigureNotify";
extra = g_strdup_printf ("x: %d y: %d w: %d h: %d above: 0x%lx override_redirect: %d",
event->xconfigure.x,
event->xconfigure.y,
event->xconfigure.width,
event->xconfigure.height,
event->xconfigure.above,
event->xconfigure.override_redirect);
break;
case ConfigureRequest:
name = "ConfigureRequest";
extra = g_strdup_printf ("parent: 0x%lx window: 0x%lx x: %d %sy: %d %sw: %d %sh: %d %sborder: %d %sabove: %lx %sstackmode: %s %s",
event->xconfigurerequest.parent,
event->xconfigurerequest.window,
event->xconfigurerequest.x,
event->xconfigurerequest.value_mask &
CWX ? "" : "(unset) ",
event->xconfigurerequest.y,
event->xconfigurerequest.value_mask &
CWY ? "" : "(unset) ",
event->xconfigurerequest.width,
event->xconfigurerequest.value_mask &
CWWidth ? "" : "(unset) ",
event->xconfigurerequest.height,
event->xconfigurerequest.value_mask &
CWHeight ? "" : "(unset) ",
event->xconfigurerequest.border_width,
event->xconfigurerequest.value_mask &
CWBorderWidth ? "" : "(unset)",
event->xconfigurerequest.above,
event->xconfigurerequest.value_mask &
CWSibling ? "" : "(unset)",
stack_mode_to_string (event->xconfigurerequest.detail),
event->xconfigurerequest.value_mask &
CWStackMode ? "" : "(unset)");
break;
case GravityNotify:
name = "GravityNotify";
break;
case ResizeRequest:
name = "ResizeRequest";
extra = g_strdup_printf ("width = %d height = %d",
event->xresizerequest.width,
event->xresizerequest.height);
break;
case CirculateNotify:
name = "CirculateNotify";
break;
case CirculateRequest:
name = "CirculateRequest";
break;
case PropertyNotify:
{
char *str;
const char *state;
name = "PropertyNotify";
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xproperty.atom);
meta_error_trap_pop (display);
if (event->xproperty.state == PropertyNewValue)
state = "PropertyNewValue";
else if (event->xproperty.state == PropertyDelete)
state = "PropertyDelete";
else
state = "???";
extra = g_strdup_printf ("atom: %s state: %s",
str ? str : "(unknown atom)",
state);
meta_XFree (str);
}
break;
case SelectionClear:
name = "SelectionClear";
break;
case SelectionRequest:
name = "SelectionRequest";
break;
case SelectionNotify:
name = "SelectionNotify";
break;
case ColormapNotify:
name = "ColormapNotify";
break;
case ClientMessage:
{
char *str;
name = "ClientMessage";
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xclient.message_type);
meta_error_trap_pop (display);
extra = g_strdup_printf ("type: %s format: %d\n",
str ? str : "(unknown atom)",
event->xclient.format);
meta_XFree (str);
}
break;
case MappingNotify:
name = "MappingNotify";
break;
default:
#ifdef HAVE_XSYNC
if (META_DISPLAY_HAS_XSYNC (display) &&
event->type == (display->xsync_event_base + XSyncAlarmNotify))
{
XSyncAlarmNotifyEvent *aevent = (XSyncAlarmNotifyEvent*) event;
name = "XSyncAlarmNotify";
extra =
g_strdup_printf ("alarm: 0x%lx"
" counter_value: %" G_GINT64_FORMAT
" alarm_value: %" G_GINT64_FORMAT
" time: %u alarm state: %s",
aevent->alarm,
(gint64) sync_value_to_64 (&aevent->counter_value),
(gint64) sync_value_to_64 (&aevent->alarm_value),
(unsigned int)aevent->time,
alarm_state_to_string (aevent->state));
}
else
#endif /* HAVE_XSYNC */
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display) &&
event->type == (display->shape_event_base + ShapeNotify))
{
XShapeEvent *sev = (XShapeEvent*) event;
name = "ShapeNotify";
extra =
g_strdup_printf ("kind: %s "
"x: %d y: %d w: %u h: %u "
"shaped: %d",
sev->kind == ShapeBounding ?
"ShapeBounding" :
(sev->kind == ShapeClip ?
"ShapeClip" : "(unknown)"),
sev->x, sev->y, sev->width, sev->height,
sev->shaped);
}
else
#endif /* HAVE_SHAPE */
{
name = "(Unknown event)";
extra = g_strdup_printf ("type: %d", event->xany.type);
}
break;
}
*name_p = name;
*extra_p = extra;
}
G_GNUC_UNUSED static void
meta_spew_event (MetaDisplay *display,
XEvent *event)
{
MetaScreen *screen = display->screen;
const char *name = NULL;
char *extra = NULL;
char *winname;
XIEvent *input_event;
/* filter overnumerous events */
if (event->type == Expose || event->type == MotionNotify ||
event->type == NoExpose)
return;
if (event->type == (display->damage_event_base + XDamageNotify))
return;
if (event->type == (display->xsync_event_base + XSyncAlarmNotify))
return;
if (event->type == PropertyNotify && event->xproperty.atom == display->atom__NET_WM_USER_TIME)
return;
input_event = get_input_event (display, event);
if (input_event)
meta_spew_xi2_event (display, input_event, &name, &extra);
else
meta_spew_core_event (display, event, &name, &extra);
if (event->xany.window == screen->xroot)
winname = g_strdup_printf ("root %d", screen->number);
else
winname = g_strdup_printf ("0x%lx", event->xany.window);
g_print ("%s on %s%s %s %sserial %lu\n", name, winname,
extra ? ":" : "", extra ? extra : "",
event->xany.send_event ? "SEND " : "",
event->xany.serial);
g_free (winname);
if (extra)
g_free (extra);
}
static void
handle_window_focus_event (MetaDisplay *display,
MetaWindow *window,
XIEnterEvent *event,
unsigned long serial)
{
MetaWindow *focus_window;
#ifdef WITH_VERBOSE_MODE
const char *window_type;
/* Note the event can be on either the window or the frame,
* we focus the frame for shaded windows
*/
if (window)
{
if (event->event == window->xwindow)
window_type = "client window";
else if (window->frame && event->event == window->frame->xwindow)
window_type = "frame window";
else
window_type = "unknown client window";
}
else if (meta_display_xwindow_is_a_no_focus_window (display, event->event))
window_type = "no_focus_window";
else if (event->event == display->screen->xroot)
window_type = "root window";
else
window_type = "unknown window";
meta_topic (META_DEBUG_FOCUS,
"Focus %s event received on %s 0x%lx (%s) "
"mode %s detail %s serial %lu\n",
event->evtype == XI_FocusIn ? "in" :
event->evtype == XI_FocusOut ? "out" :
"???",
window ? window->desc : "",
event->event, window_type,
meta_event_mode_to_string (event->mode),
meta_event_detail_to_string (event->mode),
event->serial);
#endif
/* FIXME our pointer tracking is broken; see how
* gtk+/gdk/x11/gdkevents-x11.c or XFree86/xc/programs/xterm/misc.c
* for how to handle it the correct way. In brief you need to track
* pointer focus and regular focus, and handle EnterNotify in
* PointerRoot mode with no window manager. However as noted above,
* accurate focus tracking will break things because we want to keep
* windows "focused" when using keybindings on them, and also we
* sometimes "focus" a window by focusing its frame or
* no_focus_window; so this all needs rethinking massively.
*
* My suggestion is to change it so that we clearly separate
* actual keyboard focus tracking using the xterm algorithm,
* and mutter's "pretend" focus window, and go through all
* the code and decide which one should be used in each place;
* a hard bit is deciding on a policy for that.
*
* http://bugzilla.gnome.org/show_bug.cgi?id=90382
*/
/* We ignore grabs, though this is questionable. It may be better to
* increase the intelligence of the focus window tracking.
*
* The problem is that keybindings for windows are done with
* XGrabKey, which means focus_window disappears and the front of
* the MRU list gets confused from what the user expects once a
* keybinding is used.
*/
if (event->mode == XINotifyGrab ||
event->mode == XINotifyUngrab ||
/* From WindowMaker, ignore all funky pointer root events */
event->detail > XINotifyNonlinearVirtual)
{
meta_topic (META_DEBUG_FOCUS,
"Ignoring focus event generated by a grab or other weirdness\n");
return;
}
if (event->evtype == XI_FocusIn)
{
display->server_focus_window = event->event;
display->server_focus_serial = serial;
focus_window = window;
}
else if (event->evtype == XI_FocusOut)
{
if (event->detail == XINotifyInferior)
{
/* This event means the client moved focus to a subwindow */
meta_topic (META_DEBUG_FOCUS,
"Ignoring focus out with NotifyInferior\n");
return;
}
display->server_focus_window = None;
display->server_focus_serial = serial;
focus_window = NULL;
}
else
g_return_if_reached ();
/* If display->focused_by_us, then the focus_serial will be used only
* for a focus change we made and have already accounted for.
* (See request_xserver_input_focus_change().) Otherwise, we can get
* multiple focus events with the same serial.
*/
if (display->server_focus_serial > display->focus_serial ||
(!display->focused_by_us &&
display->server_focus_serial == display->focus_serial))
{
meta_display_update_focus_window (display,
focus_window,
focus_window ? focus_window->xwindow : None,
display->server_focus_serial,
FALSE);
}
}
static gboolean
crossing_serial_is_ignored (MetaDisplay *display,
unsigned long serial)
{
int i;
i = 0;
while (i < N_IGNORED_CROSSING_SERIALS)
{
if (display->ignored_crossing_serials[i] == serial)
return TRUE;
++i;
}
return FALSE;
}
static gboolean
handle_input_xevent (MetaDisplay *display,
XIEvent *input_event,
gulong serial)
{
XIEnterEvent *enter_event = (XIEnterEvent *) input_event;
Window modified;
MetaWindow *window;
MetaScreen *screen = display->screen;
if (input_event == NULL)
return FALSE;
modified = xievent_get_modified_window (display, input_event);
window = modified != None ? meta_display_lookup_x_window (display, modified) : NULL;
switch (input_event->evtype)
{
case XI_Enter:
if (display->grab_op == META_GRAB_OP_COMPOSITOR)
break;
/* Check if we've entered a window; do this even if window->has_focus to
* avoid races.
*/
if (window && !crossing_serial_is_ignored (display, serial) &&
enter_event->mode != XINotifyGrab &&
enter_event->mode != XINotifyUngrab &&
enter_event->detail != XINotifyInferior &&
meta_display_focus_sentinel_clear (display))
{
meta_window_handle_enter (window,
enter_event->time,
enter_event->root_x,
enter_event->root_y);
if (window->type == META_WINDOW_DOCK)
meta_window_raise (window);
}
break;
case XI_Leave:
if (display->grab_op == META_GRAB_OP_COMPOSITOR)
break;
if (window != NULL)
{
if (window->type == META_WINDOW_DOCK &&
enter_event->mode != XINotifyGrab &&
enter_event->mode != XINotifyUngrab &&
!window->has_focus)
meta_window_lower (window);
}
break;
case XI_FocusIn:
case XI_FocusOut:
handle_window_focus_event (display, window, enter_event, serial);
if (!window)
{
/* Check if the window is a root window. */
if (enter_event->root != enter_event->event)
break;
if (enter_event->evtype == XI_FocusIn &&
enter_event->mode == XINotifyDetailNone)
{
meta_topic (META_DEBUG_FOCUS,
"Focus got set to None, probably due to "
"brain-damage in the X protocol (see bug "
"125492). Setting the default focus window.\n");
meta_workspace_focus_default_window (screen->active_workspace,
NULL,
meta_display_get_current_time_roundtrip (display));
}
else if (enter_event->evtype == XI_FocusIn &&
enter_event->mode == XINotifyNormal &&
enter_event->detail == XINotifyInferior)
{
meta_topic (META_DEBUG_FOCUS,
"Focus got set to root window, probably due to "
"gnome-session logout dialog usage (see bug "
"153220). Setting the default focus window.\n");
meta_workspace_focus_default_window (screen->active_workspace,
NULL,
meta_display_get_current_time_roundtrip (display));
}
}
/* Don't send FocusIn / FocusOut to Clutter */
return TRUE;
}
return FALSE;
}
static void
reload_xkb_rules (MetaScreen *screen)
{
MetaWaylandCompositor *compositor;
char **names;
int n_names;
gboolean ok;
const char *rules, *model, *layout, *variant, *options;
compositor = meta_wayland_compositor_get_default ();
ok = meta_prop_get_latin1_list (screen->display, screen->xroot,
screen->display->atom__XKB_RULES_NAMES,
&names, &n_names);
if (!ok)
return;
if (n_names != 5)
goto out;
rules = names[0];
model = names[1];
layout = names[2];
variant = names[3];
options = names[4];
meta_wayland_keyboard_set_keymap_names (&compositor->seat->keyboard,
rules, model, layout, variant, options,
META_WAYLAND_KEYBOARD_SKIP_XCLIENTS);
out:
g_strfreev (names);
}
static void
process_request_frame_extents (MetaDisplay *display,
XEvent *event)
{
/* The X window whose frame extents will be set. */
Window xwindow = event->xclient.window;
unsigned long data[4] = { 0, 0, 0, 0 };
MotifWmHints *hints = NULL;
gboolean hints_set = FALSE;
meta_verbose ("Setting frame extents for 0x%lx\n", xwindow);
/* See if the window is decorated. */
hints_set = meta_prop_get_motif_hints (display,
xwindow,
display->atom__MOTIF_WM_HINTS,
&hints);
if ((hints_set && hints->decorations) || !hints_set)
{
MetaFrameBorders borders;
/* Return estimated frame extents for a normal window. */
meta_ui_theme_get_frame_borders (display->screen->ui,
META_FRAME_TYPE_NORMAL,
0,
&borders);
data[0] = borders.visible.left;
data[1] = borders.visible.right;
data[2] = borders.visible.top;
data[3] = borders.visible.bottom;
}
meta_topic (META_DEBUG_GEOMETRY,
"Setting _NET_FRAME_EXTENTS on unmanaged window 0x%lx "
"to top = %lu, left = %lu, bottom = %lu, right = %lu\n",
xwindow, data[0], data[1], data[2], data[3]);
meta_error_trap_push (display);
XChangeProperty (display->xdisplay, xwindow,
display->atom__NET_FRAME_EXTENTS,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 4);
meta_error_trap_pop (display);
meta_XFree (hints);
}
/* from fvwm2, Copyright Matthias Clasen, Dominik Vogt */
static gboolean
convert_property (MetaDisplay *display,
MetaScreen *screen,
Window w,
Atom target,
Atom property)
{
#define N_TARGETS 4
Atom conversion_targets[N_TARGETS];
long icccm_version[] = { 2, 0 };
conversion_targets[0] = display->atom_TARGETS;
conversion_targets[1] = display->atom_MULTIPLE;
conversion_targets[2] = display->atom_TIMESTAMP;
conversion_targets[3] = display->atom_VERSION;
meta_error_trap_push_with_return (display);
if (target == display->atom_TARGETS)
XChangeProperty (display->xdisplay, w, property,
XA_ATOM, 32, PropModeReplace,
(unsigned char *)conversion_targets, N_TARGETS);
else if (target == display->atom_TIMESTAMP)
XChangeProperty (display->xdisplay, w, property,
XA_INTEGER, 32, PropModeReplace,
(unsigned char *)&screen->wm_sn_timestamp, 1);
else if (target == display->atom_VERSION)
XChangeProperty (display->xdisplay, w, property,
XA_INTEGER, 32, PropModeReplace,
(unsigned char *)icccm_version, 2);
else
{
meta_error_trap_pop_with_return (display);
return FALSE;
}
if (meta_error_trap_pop_with_return (display) != Success)
return FALSE;
/* Be sure the PropertyNotify has arrived so we
* can send SelectionNotify
*/
/* FIXME the error trap pop synced anyway, right? */
meta_topic (META_DEBUG_SYNC, "Syncing on %s\n", G_STRFUNC);
XSync (display->xdisplay, False);
return TRUE;
}
/* from fvwm2, Copyright Matthias Clasen, Dominik Vogt */
static void
process_selection_request (MetaDisplay *display,
XEvent *event)
{
MetaScreen *screen = display->screen;
XSelectionEvent reply;
if (screen->wm_sn_selection_window != event->xselectionrequest.owner ||
screen->wm_sn_atom != event->xselectionrequest.selection)
{
char *str;
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xselectionrequest.selection);
meta_error_trap_pop (display);
meta_verbose ("Selection request with selection %s window 0x%lx not a WM_Sn selection we recognize\n",
str ? str : "(bad atom)", event->xselectionrequest.owner);
meta_XFree (str);
return;
}
reply.type = SelectionNotify;
reply.display = display->xdisplay;
reply.requestor = event->xselectionrequest.requestor;
reply.selection = event->xselectionrequest.selection;
reply.target = event->xselectionrequest.target;
reply.property = None;
reply.time = event->xselectionrequest.time;
if (event->xselectionrequest.target == display->atom_MULTIPLE)
{
if (event->xselectionrequest.property != None)
{
Atom type, *adata;
int i, format;
unsigned long num, rest;
unsigned char *data;
meta_error_trap_push_with_return (display);
if (XGetWindowProperty (display->xdisplay,
event->xselectionrequest.requestor,
event->xselectionrequest.property, 0, 256, False,
display->atom_ATOM_PAIR,
&type, &format, &num, &rest, &data) != Success)
{
meta_error_trap_pop_with_return (display);
return;
}
if (meta_error_trap_pop_with_return (display) == Success)
{
/* FIXME: to be 100% correct, should deal with rest > 0,
* but since we have 4 possible targets, we will hardly ever
* meet multiple requests with a length > 8
*/
adata = (Atom*)data;
i = 0;
while (i < (int) num)
{
if (!convert_property (display, screen,
event->xselectionrequest.requestor,
adata[i], adata[i+1]))
adata[i+1] = None;
i += 2;
}
meta_error_trap_push (display);
XChangeProperty (display->xdisplay,
event->xselectionrequest.requestor,
event->xselectionrequest.property,
display->atom_ATOM_PAIR,
32, PropModeReplace, data, num);
meta_error_trap_pop (display);
meta_XFree (data);
}
}
}
else
{
if (event->xselectionrequest.property == None)
event->xselectionrequest.property = event->xselectionrequest.target;
if (convert_property (display, screen,
event->xselectionrequest.requestor,
event->xselectionrequest.target,
event->xselectionrequest.property))
reply.property = event->xselectionrequest.property;
}
XSendEvent (display->xdisplay,
event->xselectionrequest.requestor,
False, 0L, (XEvent*)&reply);
meta_verbose ("Handled selection request\n");
}
static void
process_selection_clear (MetaDisplay *display,
XEvent *event)
{
MetaScreen *screen = display->screen;
if (screen->wm_sn_selection_window != event->xselectionclear.window ||
screen->wm_sn_atom != event->xselectionclear.selection)
{
char *str;
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xselectionclear.selection);
meta_error_trap_pop (display);
meta_verbose ("Selection clear with selection %s window 0x%lx not a WM_Sn selection we recognize\n",
str ? str : "(bad atom)", event->xselectionclear.window);
meta_XFree (str);
return;
}
meta_verbose ("Got selection clear for screen %d on display %s\n",
screen->number, display->name);
meta_display_unmanage_screen (display, display->screen,
event->xselectionclear.time);
}
static gboolean
handle_other_xevent (MetaDisplay *display,
XEvent *event)
{
Window modified;
MetaWindow *window;
MetaWindow *property_for_window;
gboolean frame_was_receiver;
gboolean bypass_gtk = FALSE;
modified = event_get_modified_window (display, event);
window = modified != None ? meta_display_lookup_x_window (display, modified) : NULL;
frame_was_receiver = (window && window->frame && modified == window->frame->xwindow);
/* We only want to respond to _NET_WM_USER_TIME property notify
* events on _NET_WM_USER_TIME_WINDOW windows; in particular,
* responding to UnmapNotify events is kind of bad.
*/
property_for_window = NULL;
if (window && modified == window->user_time_window)
{
property_for_window = window;
window = NULL;
}
#ifdef HAVE_XSYNC
if (META_DISPLAY_HAS_XSYNC (display) &&
event->type == (display->xsync_event_base + XSyncAlarmNotify))
{
MetaWindow *alarm_window = meta_display_lookup_sync_alarm (display,
((XSyncAlarmNotifyEvent*)event)->alarm);
if (alarm_window != NULL)
{
XSyncValue value = ((XSyncAlarmNotifyEvent*)event)->counter_value;
gint64 new_counter_value;
new_counter_value = XSyncValueLow32 (value) + ((gint64)XSyncValueHigh32 (value) << 32);
meta_window_update_sync_request_counter (alarm_window, new_counter_value);
bypass_gtk = TRUE; /* GTK doesn't want to see this really */
}
else
meta_idle_monitor_handle_xevent_all (event);
goto out;
}
#endif /* HAVE_XSYNC */
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display) &&
event->type == (display->shape_event_base + ShapeNotify))
{
bypass_gtk = TRUE; /* GTK doesn't want to see this really */
if (window && !frame_was_receiver)
{
XShapeEvent *sev = (XShapeEvent*) event;
if (sev->kind == ShapeBounding)
meta_window_x11_update_shape_region (window);
else if (sev->kind == ShapeInput)
meta_window_x11_update_input_region (window);
}
else
{
meta_topic (META_DEBUG_SHAPES,
"ShapeNotify not on a client window (window %s frame_was_receiver = %d)\n",
window ? window->desc : "(none)",
frame_was_receiver);
}
goto out;
}
#endif /* HAVE_SHAPE */
switch (event->type)
{
case KeymapNotify:
break;
case Expose:
break;
case GraphicsExpose:
break;
case NoExpose:
break;
case VisibilityNotify:
break;
case CreateNotify:
{
if (event->xcreatewindow.parent == display->screen->xroot)
meta_stack_tracker_create_event (display->screen->stack_tracker,
&event->xcreatewindow);
}
break;
case DestroyNotify:
{
if (event->xdestroywindow.event == display->screen->xroot)
meta_stack_tracker_destroy_event (display->screen->stack_tracker,
&event->xdestroywindow);
}
if (window)
{
/* FIXME: It sucks that DestroyNotify events don't come with
* a timestamp; could we do something better here? Maybe X
* will change one day?
*/
guint32 timestamp;
timestamp = meta_display_get_current_time_roundtrip (display);
if (display->grab_op != META_GRAB_OP_NONE &&
display->grab_window == window)
meta_display_end_grab_op (display, timestamp);
if (frame_was_receiver)
{
meta_warning ("Unexpected destruction of frame 0x%lx, not sure if this should silently fail or be considered a bug\n",
window->frame->xwindow);
meta_error_trap_push (display);
meta_window_destroy_frame (window->frame->window);
meta_error_trap_pop (display);
}
else
{
/* Unmanage destroyed window */
meta_window_unmanage (window, timestamp);
window = NULL;
}
}
break;
case UnmapNotify:
if (window)
{
/* FIXME: It sucks that UnmapNotify events don't come with
* a timestamp; could we do something better here? Maybe X
* will change one day?
*/
guint32 timestamp;
timestamp = meta_display_get_current_time_roundtrip (display);
if (display->grab_op != META_GRAB_OP_NONE &&
display->grab_window == window &&
window->frame == NULL)
meta_display_end_grab_op (display, timestamp);
if (!frame_was_receiver)
{
if (window->unmaps_pending == 0)
{
meta_topic (META_DEBUG_WINDOW_STATE,
"Window %s withdrawn\n",
window->desc);
/* Unmanage withdrawn window */
window->withdrawn = TRUE;
meta_window_unmanage (window, timestamp);
window = NULL;
}
else
{
window->unmaps_pending -= 1;
meta_topic (META_DEBUG_WINDOW_STATE,
"Received pending unmap, %d now pending\n",
window->unmaps_pending);
}
}
}
break;
case MapNotify:
/* NB: override redirect windows wont cause a map request so we
* watch out for map notifies against any root windows too if a
* compositor is enabled: */
if (window == NULL && event->xmap.event == display->screen->xroot)
{
window = meta_window_x11_new (display, event->xmap.window,
FALSE, META_COMP_EFFECT_CREATE);
}
break;
case MapRequest:
if (window == NULL)
{
window = meta_window_x11_new (display, event->xmaprequest.window,
FALSE, META_COMP_EFFECT_CREATE);
}
/* if frame was receiver it's some malicious send event or something */
else if (!frame_was_receiver && window)
{
meta_verbose ("MapRequest on %s mapped = %d minimized = %d\n",
window->desc, window->mapped, window->minimized);
if (window->minimized)
{
meta_window_unminimize (window);
if (window->workspace != window->screen->active_workspace)
{
meta_verbose ("Changing workspace due to MapRequest mapped = %d minimized = %d\n",
window->mapped, window->minimized);
meta_window_change_workspace (window,
window->screen->active_workspace);
}
}
}
break;
case ReparentNotify:
{
if (event->xreparent.event == display->screen->xroot)
meta_stack_tracker_reparent_event (display->screen->stack_tracker,
&event->xreparent);
}
break;
case ConfigureNotify:
if (event->xconfigure.event != event->xconfigure.window)
{
if (event->xconfigure.event == display->screen->xroot)
meta_stack_tracker_configure_event (display->screen->stack_tracker,
&event->xconfigure);
}
if (window && window->override_redirect)
meta_window_x11_configure_notify (window, &event->xconfigure);
break;
case ConfigureRequest:
/* This comment and code is found in both twm and fvwm */
/*
* According to the July 27, 1988 ICCCM draft, we should ignore size and
* position fields in the WM_NORMAL_HINTS property when we map a window.
* Instead, we'll read the current geometry. Therefore, we should respond
* to configuration requests for windows which have never been mapped.
*/
if (window == NULL)
{
unsigned int xwcm;
XWindowChanges xwc;
xwcm = event->xconfigurerequest.value_mask &
(CWX | CWY | CWWidth | CWHeight | CWBorderWidth);
xwc.x = event->xconfigurerequest.x;
xwc.y = event->xconfigurerequest.y;
xwc.width = event->xconfigurerequest.width;
xwc.height = event->xconfigurerequest.height;
xwc.border_width = event->xconfigurerequest.border_width;
meta_verbose ("Configuring withdrawn window to %d,%d %dx%d border %d (some values may not be in mask)\n",
xwc.x, xwc.y, xwc.width, xwc.height, xwc.border_width);
meta_error_trap_push (display);
XConfigureWindow (display->xdisplay, event->xconfigurerequest.window,
xwcm, &xwc);
meta_error_trap_pop (display);
}
else
{
if (!frame_was_receiver)
meta_window_x11_configure_request (window, event);
}
break;
case GravityNotify:
break;
case ResizeRequest:
break;
case CirculateNotify:
break;
case CirculateRequest:
break;
case PropertyNotify:
{
MetaGroup *group;
if (window && !frame_was_receiver)
meta_window_x11_property_notify (window, event);
else if (property_for_window && !frame_was_receiver)
meta_window_x11_property_notify (property_for_window, event);
group = meta_display_lookup_group (display,
event->xproperty.window);
if (group != NULL)
meta_group_property_notify (group, event);
if (event->xproperty.window == display->screen->xroot)
{
if (event->xproperty.atom ==
display->atom__NET_DESKTOP_LAYOUT)
meta_screen_update_workspace_layout (display->screen);
else if (event->xproperty.atom ==
display->atom__NET_DESKTOP_NAMES)
meta_screen_update_workspace_names (display->screen);
else if (meta_is_wayland_compositor () &&
event->xproperty.atom ==
display->atom__XKB_RULES_NAMES)
reload_xkb_rules (display->screen);
#if 0
else if (event->xproperty.atom ==
display->atom__NET_RESTACK_WINDOW)
handle_net_restack_window (display, event);
#endif
/* we just use this property as a sentinel to avoid
* certain race conditions. See the comment for the
* sentinel_counter variable declaration in display.h
*/
if (event->xproperty.atom ==
display->atom__MUTTER_SENTINEL)
{
meta_display_decrement_focus_sentinel (display);
}
}
}
break;
case SelectionClear:
/* do this here instead of at end of function
* so we can return
*/
/* FIXME: Clearing display->current_time here makes no sense to
* me; who put this here and why?
*/
display->current_time = CurrentTime;
process_selection_clear (display, event);
/* Note that processing that may have resulted in
* closing the display... so return right away.
*/
return FALSE;
case SelectionRequest:
process_selection_request (display, event);
break;
case SelectionNotify:
break;
case ColormapNotify:
break;
case ClientMessage:
if (window)
{
if (!frame_was_receiver)
meta_window_x11_client_message (window, event);
}
else
{
if (event->xclient.window == display->screen->xroot)
{
if (event->xclient.message_type ==
display->atom__NET_CURRENT_DESKTOP)
{
int space;
MetaWorkspace *workspace;
guint32 time;
space = event->xclient.data.l[0];
time = event->xclient.data.l[1];
meta_verbose ("Request to change current workspace to %d with "
"specified timestamp of %u\n",
space, time);
workspace = meta_screen_get_workspace_by_index (display->screen, space);
/* Handle clients using the older version of the spec... */
if (time == 0 && workspace)
{
meta_warning ("Received a NET_CURRENT_DESKTOP message "
"from a broken (outdated) client who sent "
"a 0 timestamp\n");
time = meta_display_get_current_time_roundtrip (display);
}
if (workspace)
meta_workspace_activate (workspace, time);
else
meta_verbose ("Don't know about workspace %d\n", space);
}
else if (event->xclient.message_type ==
display->atom__NET_NUMBER_OF_DESKTOPS)
{
int num_spaces;
num_spaces = event->xclient.data.l[0];
meta_verbose ("Request to set number of workspaces to %d\n",
num_spaces);
meta_prefs_set_num_workspaces (num_spaces);
}
else if (event->xclient.message_type ==
display->atom__NET_SHOWING_DESKTOP)
{
gboolean showing_desktop;
guint32 timestamp;
showing_desktop = event->xclient.data.l[0] != 0;
/* FIXME: Braindead protocol doesn't have a timestamp */
timestamp = meta_display_get_current_time_roundtrip (display);
meta_verbose ("Request to %s desktop\n",
showing_desktop ? "show" : "hide");
if (showing_desktop)
meta_screen_show_desktop (display->screen, timestamp);
else
{
meta_screen_unshow_desktop (display->screen);
meta_workspace_focus_default_window (display->screen->active_workspace, NULL, timestamp);
}
}
else if (event->xclient.message_type ==
display->atom_WM_PROTOCOLS)
{
meta_verbose ("Received WM_PROTOCOLS message\n");
if ((Atom)event->xclient.data.l[0] == display->atom__NET_WM_PING)
{
guint32 timestamp = event->xclient.data.l[1];
meta_display_pong_for_serial (display, timestamp);
/* We don't want ping reply events going into
* the GTK+ event loop because gtk+ will treat
* them as ping requests and send more replies.
*/
bypass_gtk = TRUE;
}
}
}
if (event->xclient.message_type ==
display->atom__NET_REQUEST_FRAME_EXTENTS)
{
meta_verbose ("Received _NET_REQUEST_FRAME_EXTENTS message\n");
process_request_frame_extents (display, event);
}
}
break;
case MappingNotify:
{
gboolean ignore_current;
ignore_current = FALSE;
/* Check whether the next event is an identical MappingNotify
* event. If it is, ignore the current event, we'll update
* when we get the next one.
*/
if (XPending (display->xdisplay))
{
XEvent next_event;
XPeekEvent (display->xdisplay, &next_event);
if (next_event.type == MappingNotify &&
next_event.xmapping.request == event->xmapping.request)
ignore_current = TRUE;
}
if (!ignore_current)
{
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping (&event->xmapping);
meta_display_process_mapping_event (display, event);
}
}
break;
default:
#ifdef HAVE_XKB
if (event->type == display->xkb_base_event_type)
{
XkbAnyEvent *xkb_ev = (XkbAnyEvent *) event;
switch (xkb_ev->xkb_type)
{
case XkbBellNotify:
if (XSERVER_TIME_IS_BEFORE(display->last_bell_time,
xkb_ev->time - 100))
{
display->last_bell_time = xkb_ev->time;
meta_bell_notify (display, xkb_ev);
}
break;
case XkbNewKeyboardNotify:
case XkbMapNotify:
if (xkb_ev->device == META_VIRTUAL_CORE_KEYBOARD_ID)
meta_display_process_mapping_event (display, event);
break;
}
}
#endif
break;
}
out:
return bypass_gtk;
}
static gboolean
grab_op_should_block_mouse_events (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_WAYLAND_CLIENT:
case META_GRAB_OP_COMPOSITOR:
return TRUE;
default:
return FALSE;
}
}
static gboolean
window_has_xwindow (MetaWindow *window,
Window xwindow)
{
if (window->xwindow == xwindow)
return TRUE;
if (window->frame && window->frame->xwindow == xwindow)
return TRUE;
return FALSE;
}
/**
* meta_display_handle_xevent:
* @display: The MetaDisplay that events are coming from
* @event: The event that just happened
*
* This is the most important function in the whole program. It is the heart,
* it is the nexus, it is the Grand Central Station of Mutter's world.
* When we create a #MetaDisplay, we ask GDK to pass *all* events for *all*
* windows to this function. So every time anything happens that we might
* want to know about, this function gets called. You see why it gets a bit
* busy around here. Most of this function is a ginormous switch statement
* dealing with all the kinds of events that might turn up.
*/
static gboolean
meta_display_handle_xevent (MetaDisplay *display,
XEvent *event)
{
Window modified;
gboolean bypass_compositor = FALSE, bypass_gtk = FALSE;
XIEvent *input_event;
MetaMonitorManager *monitor;
#if 0
meta_spew_event (display, event);
#endif
#ifdef HAVE_STARTUP_NOTIFICATION
sn_display_process_event (display->sn_display, event);
#endif
/* Intercept XRandR events early and don't attempt any
processing for them. We still let them through to Gdk though,
so it can update its own internal state.
*/
monitor = meta_monitor_manager_get ();
if (meta_monitor_manager_handle_xevent (monitor, event))
{
bypass_compositor = TRUE;
goto out;
}
display->current_time = event_get_time (display, event);
display->monitor_cache_invalidated = TRUE;
if (display->focused_by_us &&
event->xany.serial > display->focus_serial &&
display->focus_window &&
!window_has_xwindow (display->focus_window, display->server_focus_window))
{
meta_topic (META_DEBUG_FOCUS, "Earlier attempt to focus %s failed\n",
display->focus_window->desc);
meta_display_update_focus_window (display,
meta_display_lookup_x_window (display, display->server_focus_window),
display->server_focus_window,
display->server_focus_serial,
FALSE);
}
if (event->xany.window == display->screen->xroot)
{
if (meta_screen_handle_xevent (display->screen, event))
{
bypass_gtk = bypass_compositor = TRUE;
goto out;
}
}
modified = event_get_modified_window (display, event);
input_event = get_input_event (display, event);
if (event->type == UnmapNotify)
{
if (meta_ui_window_should_not_cause_focus (display->xdisplay,
modified))
{
meta_display_add_ignored_crossing_serial (display, event->xany.serial);
meta_topic (META_DEBUG_FOCUS,
"Adding EnterNotify serial %lu to ignored focus serials\n",
event->xany.serial);
}
}
else if (input_event &&
input_event->evtype == XI_Leave &&
((XILeaveEvent *)input_event)->mode == XINotifyUngrab &&
modified == display->ungrab_should_not_cause_focus_window)
{
meta_display_add_ignored_crossing_serial (display, event->xany.serial);
meta_topic (META_DEBUG_FOCUS,
"Adding LeaveNotify serial %lu to ignored focus serials\n",
event->xany.serial);
}
#ifdef HAVE_XI23
if (meta_display_process_barrier_event (display, input_event))
{
bypass_gtk = bypass_compositor = TRUE;
goto out;
}
#endif /* HAVE_XI23 */
/* libXi does not properly copy the serial to XI2 events, so pull it
* from the parent XAnyEvent and pass it to handle_input_xevent.
* See: https://bugs.freedesktop.org/show_bug.cgi?id=64687
*/
if (handle_input_xevent (display, input_event, event->xany.serial))
{
bypass_gtk = bypass_compositor = TRUE;
goto out;
}
if (handle_other_xevent (display, event))
{
bypass_gtk = TRUE;
goto out;
}
out:
if (!bypass_compositor)
{
MetaWindow *window = modified != None ? meta_display_lookup_x_window (display, modified) : NULL;
if (meta_compositor_process_event (display->compositor, event, window))
bypass_gtk = TRUE;
}
display->current_time = CurrentTime;
return bypass_gtk;
}
static gboolean
meta_display_handle_event (MetaDisplay *display,
const ClutterEvent *event)
{
MetaWindow *window;
gboolean bypass_clutter = FALSE, bypass_wayland = FALSE;
MetaWaylandCompositor *compositor = NULL;
if (meta_is_wayland_compositor ())
{
compositor = meta_wayland_compositor_get_default ();
meta_wayland_compositor_update (compositor, event);
}
window = get_window_for_event (display, event);
display->current_time = event->any.time;
if (window && !window->override_redirect &&
(event->type == CLUTTER_KEY_PRESS || event->type == CLUTTER_BUTTON_PRESS))
{
if (CurrentTime == display->current_time)
{
/* We can't use missing (i.e. invalid) timestamps to set user time,
* nor do we want to use them to sanity check other timestamps.
* See bug 313490 for more details.
*/
meta_warning ("Event has no timestamp! You may be using a broken "
"program such as xse. Please ask the authors of that "
"program to fix it.\n");
}
else
{
meta_window_set_user_time (window, display->current_time);
meta_display_sanity_check_timestamps (display, display->current_time);
}
}
switch (event->type)
{
case CLUTTER_BUTTON_PRESS:
if (grab_op_should_block_mouse_events (display->grab_op))
break;
display->overlay_key_only_pressed = FALSE;
if ((window &&
meta_grab_op_is_mouse (display->grab_op) &&
(event->button.modifier_state & display->window_grab_modifiers) &&
display->grab_button != (int) event->button.button &&
display->grab_window == window) ||
meta_grab_op_is_keyboard (display->grab_op))
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Ending grab op %u on window %s due to button press\n",
display->grab_op,
(display->grab_window ?
display->grab_window->desc :
"none"));
meta_display_end_grab_op (display, event->any.time);
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
else if (window && display->grab_op == META_GRAB_OP_NONE)
{
ClutterModifierType grab_mask;
gboolean unmodified;
gboolean fully_modified;
grab_mask = display->window_grab_modifiers;
if (g_getenv ("MUTTER_DEBUG_BUTTON_GRABS"))
grab_mask |= CLUTTER_CONTROL_MASK;
/* We have three passive button grabs:
* - on any button, without modifiers => focuses and maybe raises the window
* - on resize button, with modifiers => start an interactive resizing
* (normally <Super>middle)
* - on move button, with modifiers => start an interactive move
* (normally <Super>left)
* - on menu button, with modifiers => show the window menu
* (normally <Super>right)
*
* We may get here because we actually have a button
* grab on the window, or because we're a wayland
* compositor and thus we see all the events, so we
* need to check if the event is interesting.
* We want an event that is not modified, for a window
* that has (or would have, the wayland case) the
* button grab active.
*
* We may have other events on the window, for example
* a click on a frame button, but that's not for us to
* care about. Just let the event through.
*/
unmodified = (event->button.modifier_state & grab_mask) == 0;
fully_modified = grab_mask && (event->button.modifier_state & grab_mask) == grab_mask;
if (unmodified && window && window->have_focus_click_grab)
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
else
meta_topic (META_DEBUG_FOCUS,
"Not raising window on click due to don't-raise-on-click option\n");
/* Don't focus panels--they must explicitly request focus.
* See bug 160470
*/
if (window->type != META_WINDOW_DOCK)
{
meta_topic (META_DEBUG_FOCUS,
"Focusing %s due to unmodified button %u press (display.c)\n",
window->desc, event->button.button);
meta_window_focus (window, event->any.time);
}
else
/* However, do allow terminals to lose focus due to new
* window mappings after the user clicks on a panel.
*/
display->allow_terminal_deactivation = TRUE;
meta_verbose ("Allowing events time %u\n",
(unsigned int)event->button.time);
XIAllowEvents (display->xdisplay, clutter_input_device_get_device_id (event->button.device),
XIReplayDevice, event->button.time);
bypass_clutter = TRUE;
}
else if (fully_modified && (int) event->button.button == meta_prefs_get_mouse_button_resize ())
{
if (window->has_resize_func)
{
gboolean north, south;
gboolean west, east;
MetaRectangle frame_rect;
MetaGrabOp op;
meta_window_get_frame_rect (window, &frame_rect);
west = event->button.x < (frame_rect.x + 1 * frame_rect.width / 3);
east = event->button.x > (frame_rect.x + 2 * frame_rect.width / 3);
north = event->button.y < (frame_rect.y + 1 * frame_rect.height / 3);
south = event->button.y > (frame_rect.y + 2 * frame_rect.height / 3);
if (north && west)
op = META_GRAB_OP_RESIZING_NW;
else if (north && east)
op = META_GRAB_OP_RESIZING_NE;
else if (south && west)
op = META_GRAB_OP_RESIZING_SW;
else if (south && east)
op = META_GRAB_OP_RESIZING_SE;
else if (north)
op = META_GRAB_OP_RESIZING_N;
else if (west)
op = META_GRAB_OP_RESIZING_W;
else if (east)
op = META_GRAB_OP_RESIZING_E;
else if (south)
op = META_GRAB_OP_RESIZING_S;
else /* Middle region is no-op to avoid user triggering wrong action */
op = META_GRAB_OP_NONE;
if (op != META_GRAB_OP_NONE)
meta_display_begin_grab_op (display,
window->screen,
window,
op,
TRUE,
FALSE,
event->button.button,
0,
event->any.time,
event->button.x,
event->button.y);
}
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
else if (fully_modified && (int) event->button.button == meta_prefs_get_mouse_button_menu ())
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
meta_window_show_menu (window,
event->button.x,
event->button.y,
event->button.button,
event->any.time);
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
else if (fully_modified && (int) event->button.button == 1)
{
if (window->has_move_func)
{
meta_display_begin_grab_op (display,
window->screen,
window,
META_GRAB_OP_MOVING,
TRUE,
FALSE,
event->button.button,
0,
event->any.time,
event->button.x,
event->button.y);
}
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
}
break;
case CLUTTER_BUTTON_RELEASE:
if (grab_op_should_block_mouse_events (display->grab_op))
break;
display->overlay_key_only_pressed = FALSE;
if (display->grab_window == window &&
meta_grab_op_is_mouse (display->grab_op))
{
meta_window_handle_mouse_grab_op_event (window, event);
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
break;
case CLUTTER_MOTION:
if (grab_op_should_block_mouse_events (display->grab_op))
break;
if (display->grab_window == window &&
meta_grab_op_is_mouse (display->grab_op))
{
meta_window_handle_mouse_grab_op_event (window, event);
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
break;
case CLUTTER_KEY_PRESS:
case CLUTTER_KEY_RELEASE:
/* For key events, it's important to enforce single-handling, or
* we can get into a confused state. So if a keybinding is
* handled (because it's one of our hot-keys, or because we are
* in a keyboard-grabbed mode like moving a window, we don't
* want to pass the key event to the compositor or Wayland at all.
*/
if (meta_display_process_key_event (display, window, (ClutterKeyEvent *) event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
default:
break;
}
/* If the compositor has a grab, don't pass that through to Wayland */
if (display->grab_op == META_GRAB_OP_COMPOSITOR)
bypass_wayland = TRUE;
/* If a Wayland client has a grab, don't pass that through to Clutter */
if (display->grab_op == META_GRAB_OP_WAYLAND_CLIENT)
bypass_clutter = TRUE;
if (compositor && !bypass_wayland)
{
if (meta_wayland_compositor_handle_event (compositor, event))
bypass_clutter = TRUE;
}
return bypass_clutter;
}
static GdkFilterReturn
xevent_filter (GdkXEvent *xevent,
GdkEvent *event,
gpointer data)
{
MetaDisplay *display = data;
if (meta_display_handle_xevent (display, xevent))
return GDK_FILTER_REMOVE;
else
return GDK_FILTER_CONTINUE;
}
static gboolean
event_callback (const ClutterEvent *event,
gpointer data)
{
MetaDisplay *display = data;
return meta_display_handle_event (display, event);
}
void
meta_display_init_events (MetaDisplay *display)
{
gdk_window_add_filter (NULL, xevent_filter, display);
display->clutter_event_filter = clutter_event_add_filter (NULL,
event_callback,
NULL,
display);
}
void
meta_display_free_events (MetaDisplay *display)
{
gdk_window_remove_filter (NULL, xevent_filter, display);
clutter_event_remove_filter (display->clutter_event_filter);
display->clutter_event_filter = 0;
}
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