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mutter/src/core/window-x11.c
Giovanni Campagna 0c5a6ad775 window: don't set _NET_WM_FULLSCREEN_MONITORS to bogus values 
Prior to the DisplayConfig merge, we would set _NET_WM_FULLSCREEN_MONITORS
to (unsigned)-1 when unset. After that, we would have invalid
reads inside meta_screen_monitor_index_to_xinerama_index() (called
with -1).
The way I read the specification, the proper way to indicate
that the window is back to fullscreen on all monitors is to
remove the property, so do that.

Also, add an assertion that meta_screne_monitor_index_to_xinerama_index()
is doing the right thing.

https://bugzilla.gnome.org/show_bug.cgi?id=724258
2014-02-13 13:16:51 +01:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2001 Havoc Pennington, Anders Carlsson
* Copyright (C) 2002, 2003 Red Hat, Inc.
* Copyright (C) 2003 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 "window-x11.h"
#include <string.h>
#include <X11/Xatom.h>
#include <X11/Xlibint.h> /* For display->resource_mask */
#ifdef HAVE_SHAPE
#include <X11/extensions/shape.h>
#endif
#include <X11/extensions/Xcomposite.h>
#include "core.h"
#include <meta/common.h>
#include <meta/errors.h>
#include <meta/prefs.h>
#include "window-private.h"
#include "window-props.h"
#include "xprops.h"
void
meta_window_x11_set_net_wm_state (MetaWindow *window)
{
int i;
unsigned long data[13];
i = 0;
if (window->shaded)
{
data[i] = window->display->atom__NET_WM_STATE_SHADED;
++i;
}
if (window->wm_state_modal)
{
data[i] = window->display->atom__NET_WM_STATE_MODAL;
++i;
}
if (window->skip_pager)
{
data[i] = window->display->atom__NET_WM_STATE_SKIP_PAGER;
++i;
}
if (window->skip_taskbar)
{
data[i] = window->display->atom__NET_WM_STATE_SKIP_TASKBAR;
++i;
}
if (window->maximized_horizontally)
{
data[i] = window->display->atom__NET_WM_STATE_MAXIMIZED_HORZ;
++i;
}
if (window->maximized_vertically)
{
data[i] = window->display->atom__NET_WM_STATE_MAXIMIZED_VERT;
++i;
}
if (window->fullscreen)
{
data[i] = window->display->atom__NET_WM_STATE_FULLSCREEN;
++i;
}
if (!meta_window_showing_on_its_workspace (window) || window->shaded)
{
data[i] = window->display->atom__NET_WM_STATE_HIDDEN;
++i;
}
if (window->wm_state_above)
{
data[i] = window->display->atom__NET_WM_STATE_ABOVE;
++i;
}
if (window->wm_state_below)
{
data[i] = window->display->atom__NET_WM_STATE_BELOW;
++i;
}
if (window->wm_state_demands_attention)
{
data[i] = window->display->atom__NET_WM_STATE_DEMANDS_ATTENTION;
++i;
}
if (window->on_all_workspaces_requested)
{
data[i] = window->display->atom__NET_WM_STATE_STICKY;
++i;
}
if (meta_window_appears_focused (window))
{
data[i] = window->display->atom__NET_WM_STATE_FOCUSED;
++i;
}
meta_verbose ("Setting _NET_WM_STATE with %d atoms\n", i);
meta_error_trap_push (window->display);
XChangeProperty (window->display->xdisplay, window->xwindow,
window->display->atom__NET_WM_STATE,
XA_ATOM,
32, PropModeReplace, (guchar*) data, i);
meta_error_trap_pop (window->display);
if (window->fullscreen)
{
if (window->fullscreen_monitors[0] >= 0)
{
data[0] = meta_screen_monitor_index_to_xinerama_index (window->screen,
window->fullscreen_monitors[0]);
data[1] = meta_screen_monitor_index_to_xinerama_index (window->screen,
window->fullscreen_monitors[1]);
data[2] = meta_screen_monitor_index_to_xinerama_index (window->screen,
window->fullscreen_monitors[2]);
data[3] = meta_screen_monitor_index_to_xinerama_index (window->screen,
window->fullscreen_monitors[3]);
meta_verbose ("Setting _NET_WM_FULLSCREEN_MONITORS\n");
meta_error_trap_push (window->display);
XChangeProperty (window->display->xdisplay,
window->xwindow,
window->display->atom__NET_WM_FULLSCREEN_MONITORS,
XA_CARDINAL, 32, PropModeReplace,
(guchar*) data, 4);
meta_error_trap_pop (window->display);
}
else
{
meta_verbose ("Clearing _NET_WM_FULLSCREEN_MONITORS\n");
meta_error_trap_push (window->display);
XDeleteProperty (window->display->xdisplay,
window->xwindow,
window->display->atom__NET_WM_FULLSCREEN_MONITORS);
meta_error_trap_pop (window->display);
}
}
}
void
meta_window_x11_update_net_wm_type (MetaWindow *window)
{
int n_atoms;
Atom *atoms;
int i;
window->type_atom = None;
n_atoms = 0;
atoms = NULL;
meta_prop_get_atom_list (window->display, window->xwindow,
window->display->atom__NET_WM_WINDOW_TYPE,
&atoms, &n_atoms);
i = 0;
while (i < n_atoms)
{
/* We break as soon as we find one we recognize,
* supposed to prefer those near the front of the list
*/
if (atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_DESKTOP ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_DOCK ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_TOOLBAR ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_MENU ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_UTILITY ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_SPLASH ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_DIALOG ||
atoms[i] ==
window->display->atom__NET_WM_WINDOW_TYPE_DROPDOWN_MENU ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_POPUP_MENU ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_TOOLTIP ||
atoms[i] ==
window->display->atom__NET_WM_WINDOW_TYPE_NOTIFICATION ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_COMBO ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_DND ||
atoms[i] == window->display->atom__NET_WM_WINDOW_TYPE_NORMAL)
{
window->type_atom = atoms[i];
break;
}
++i;
}
meta_XFree (atoms);
if (meta_is_verbose ())
{
char *str;
str = NULL;
if (window->type_atom != None)
{
meta_error_trap_push (window->display);
str = XGetAtomName (window->display->xdisplay, window->type_atom);
meta_error_trap_pop (window->display);
}
meta_verbose ("Window %s type atom %s\n", window->desc,
str ? str : "(none)");
if (str)
meta_XFree (str);
}
meta_window_recalc_window_type (window);
}
void
meta_window_x11_update_role (MetaWindow *window)
{
char *str;
g_return_if_fail (!window->override_redirect);
if (window->role)
g_free (window->role);
window->role = NULL;
if (meta_prop_get_latin1_string (window->display, window->xwindow,
window->display->atom_WM_WINDOW_ROLE,
&str))
{
window->role = g_strdup (str);
meta_XFree (str);
}
meta_verbose ("Updated role of %s to '%s'\n",
window->desc, window->role ? window->role : "null");
}
static void
meta_window_set_opaque_region (MetaWindow *window,
cairo_region_t *region)
{
g_clear_pointer (&window->opaque_region, cairo_region_destroy);
if (region != NULL)
window->opaque_region = cairo_region_reference (region);
if (window->display->compositor)
meta_compositor_window_shape_changed (window->display->compositor, window);
}
void
meta_window_x11_update_opaque_region (MetaWindow *window)
{
cairo_region_t *opaque_region = NULL;
gulong *region = NULL;
int nitems;
if (meta_prop_get_cardinal_list (window->display,
window->xwindow,
window->display->atom__NET_WM_OPAQUE_REGION,
&region, &nitems))
{
cairo_rectangle_int_t *rects;
int i, rect_index, nrects;
if (nitems % 4 != 0)
{
meta_verbose ("_NET_WM_OPAQUE_REGION does not have a list of 4-tuples.");
goto out;
}
/* empty region */
if (nitems == 0)
goto out;
nrects = nitems / 4;
rects = g_new (cairo_rectangle_int_t, nrects);
rect_index = 0;
i = 0;
while (i < nitems)
{
cairo_rectangle_int_t *rect = &rects[rect_index];
rect->x = region[i++];
rect->y = region[i++];
rect->width = region[i++];
rect->height = region[i++];
rect_index++;
}
opaque_region = cairo_region_create_rectangles (rects, nrects);
g_free (rects);
}
out:
meta_XFree (region);
meta_window_set_opaque_region (window, opaque_region);
cairo_region_destroy (opaque_region);
}
static cairo_region_t *
region_create_from_x_rectangles (const XRectangle *rects,
int n_rects)
{
int i;
cairo_rectangle_int_t *cairo_rects = g_newa (cairo_rectangle_int_t, n_rects);
for (i = 0; i < n_rects; i ++)
{
cairo_rects[i].x = rects[i].x;
cairo_rects[i].y = rects[i].y;
cairo_rects[i].width = rects[i].width;
cairo_rects[i].height = rects[i].height;
}
return cairo_region_create_rectangles (cairo_rects, n_rects);
}
static void
meta_window_set_input_region (MetaWindow *window,
cairo_region_t *region)
{
g_clear_pointer (&window->input_region, cairo_region_destroy);
if (region != NULL)
window->input_region = cairo_region_reference (region);
if (window->display->compositor)
meta_compositor_window_shape_changed (window->display->compositor, window);
}
void
meta_window_x11_update_input_region (MetaWindow *window)
{
cairo_region_t *region = NULL;
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (window->display))
{
/* Translate the set of XShape rectangles that we
* get from the X server to a cairo_region. */
XRectangle *rects = NULL;
int n_rects, ordering;
int x_bounding, y_bounding, x_clip, y_clip;
unsigned w_bounding, h_bounding, w_clip, h_clip;
int bounding_shaped, clip_shaped;
meta_error_trap_push (window->display);
XShapeQueryExtents (window->display->xdisplay, window->xwindow,
&bounding_shaped, &x_bounding, &y_bounding,
&w_bounding, &h_bounding,
&clip_shaped, &x_clip, &y_clip,
&w_clip, &h_clip);
rects = XShapeGetRectangles (window->display->xdisplay,
window->xwindow,
ShapeInput,
&n_rects,
&ordering);
meta_error_trap_pop (window->display);
/* XXX: The x shape extension doesn't provide a way to only test if an
* input shape has been specified, so we have to query and throw away the
* rectangles. */
if (rects)
{
if (n_rects > 1 ||
(n_rects == 1 &&
(rects[0].x != x_bounding ||
rects[0].y != y_bounding ||
rects[0].width != w_bounding ||
rects[0].height != h_bounding)))
region = region_create_from_x_rectangles (rects, n_rects);
XFree (rects);
}
}
#endif /* HAVE_SHAPE */
if (region != NULL)
{
cairo_rectangle_int_t client_area;
client_area.x = 0;
client_area.y = 0;
client_area.width = window->rect.width;
client_area.height = window->rect.height;
/* The shape we get back from the client may have coordinates
* outside of the frame. The X SHAPE Extension requires that
* the overall shape the client provides never exceeds the
* "bounding rectangle" of the window -- the shape that the
* window would have gotten if it was unshaped. In our case,
* this is simply the client area.
*/
cairo_region_intersect_rectangle (region, &client_area);
}
meta_window_set_input_region (window, region);
cairo_region_destroy (region);
}
static void
meta_window_set_shape_region (MetaWindow *window,
cairo_region_t *region)
{
g_clear_pointer (&window->shape_region, cairo_region_destroy);
if (region != NULL)
window->shape_region = cairo_region_reference (region);
if (window->display->compositor)
meta_compositor_window_shape_changed (window->display->compositor, window);
}
void
meta_window_x11_update_shape_region (MetaWindow *window)
{
cairo_region_t *region = NULL;
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (window->display))
{
/* Translate the set of XShape rectangles that we
* get from the X server to a cairo_region. */
XRectangle *rects = NULL;
int n_rects, ordering;
int x_bounding, y_bounding, x_clip, y_clip;
unsigned w_bounding, h_bounding, w_clip, h_clip;
int bounding_shaped, clip_shaped;
meta_error_trap_push (window->display);
XShapeQueryExtents (window->display->xdisplay, window->xwindow,
&bounding_shaped, &x_bounding, &y_bounding,
&w_bounding, &h_bounding,
&clip_shaped, &x_clip, &y_clip,
&w_clip, &h_clip);
if (bounding_shaped)
{
rects = XShapeGetRectangles (window->display->xdisplay,
window->xwindow,
ShapeBounding,
&n_rects,
&ordering);
}
meta_error_trap_pop (window->display);
if (rects)
{
region = region_create_from_x_rectangles (rects, n_rects);
XFree (rects);
}
}
#endif /* HAVE_SHAPE */
if (region != NULL)
{
cairo_rectangle_int_t client_area;
client_area.x = 0;
client_area.y = 0;
client_area.width = window->rect.width;
client_area.height = window->rect.height;
/* The shape we get back from the client may have coordinates
* outside of the frame. The X SHAPE Extension requires that
* the overall shape the client provides never exceeds the
* "bounding rectangle" of the window -- the shape that the
* window would have gotten if it was unshaped. In our case,
* this is simply the client area.
*/
cairo_region_intersect_rectangle (region, &client_area);
}
meta_window_set_shape_region (window, region);
cairo_region_destroy (region);
}
/* Generally meta_window_same_application() is a better idea
* of "sameness", since it handles the case where multiple apps
* want to look like the same app or the same app wants to look
* like multiple apps, but in the case of workarounds for legacy
* applications (which likely aren't setting the group properly
* anyways), it may be desirable to check this as well.
*/
static gboolean
meta_window_same_client (MetaWindow *window,
MetaWindow *other_window)
{
int resource_mask = window->display->xdisplay->resource_mask;
return ((window->xwindow & ~resource_mask) ==
(other_window->xwindow & ~resource_mask));
}
gboolean
meta_window_x11_configure_request (MetaWindow *window,
XEvent *event)
{
/* Note that x, y is the corner of the window border,
* and width, height is the size of the window inside
* its border, but that we always deny border requests
* and give windows a border of 0. But we save the
* requested border here.
*/
if (event->xconfigurerequest.value_mask & CWBorderWidth)
window->border_width = event->xconfigurerequest.border_width;
meta_window_move_resize_request(window,
event->xconfigurerequest.value_mask,
window->size_hints.win_gravity,
event->xconfigurerequest.x,
event->xconfigurerequest.y,
event->xconfigurerequest.width,
event->xconfigurerequest.height);
/* Handle stacking. We only handle raises/lowers, mostly because
* stack.c really can't deal with anything else. I guess we'll fix
* that if a client turns up that really requires it. Only a very
* few clients even require the raise/lower (and in fact all client
* attempts to deal with stacking order are essentially broken,
* since they have no idea what other clients are involved or how
* the stack looks).
*
* I'm pretty sure no interesting client uses TopIf, BottomIf, or
* Opposite anyway, so the only possible missing thing is
* Above/Below with a sibling set. For now we just pretend there's
* never a sibling set and always do the full raise/lower instead of
* the raise-just-above/below-sibling.
*/
if (event->xconfigurerequest.value_mask & CWStackMode)
{
MetaWindow *active_window;
active_window = window->display->focus_window;
if (meta_prefs_get_disable_workarounds ())
{
meta_topic (META_DEBUG_STACK,
"%s sent an xconfigure stacking request; this is "
"broken behavior and the request is being ignored.\n",
window->desc);
}
else if (active_window &&
!meta_window_same_application (window, active_window) &&
!meta_window_same_client (window, active_window) &&
XSERVER_TIME_IS_BEFORE (window->net_wm_user_time,
active_window->net_wm_user_time))
{
meta_topic (META_DEBUG_STACK,
"Ignoring xconfigure stacking request from %s (with "
"user_time %u); currently active application is %s (with "
"user_time %u).\n",
window->desc,
window->net_wm_user_time,
active_window->desc,
active_window->net_wm_user_time);
if (event->xconfigurerequest.detail == Above)
meta_window_set_demands_attention(window);
}
else
{
switch (event->xconfigurerequest.detail)
{
case Above:
meta_window_raise (window);
break;
case Below:
meta_window_lower (window);
break;
case TopIf:
case BottomIf:
case Opposite:
break;
}
}
}
return TRUE;
}
static gboolean
process_property_notify (MetaWindow *window,
XPropertyEvent *event)
{
Window xid = window->xwindow;
if (meta_is_verbose ()) /* avoid looking up the name if we don't have to */
{
char *property_name = XGetAtomName (window->display->xdisplay,
event->atom);
meta_verbose ("Property notify on %s for %s\n",
window->desc, property_name);
XFree (property_name);
}
if (event->atom == window->display->atom__NET_WM_USER_TIME &&
window->user_time_window)
{
xid = window->user_time_window;
}
meta_window_reload_property_from_xwindow (window, xid, event->atom, FALSE);
return TRUE;
}
gboolean
meta_window_x11_property_notify (MetaWindow *window,
XEvent *event)
{
return process_property_notify (window, &event->xproperty);
}
#define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
#define _NET_WM_MOVERESIZE_SIZE_TOP 1
#define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
#define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
#define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
#define _NET_WM_MOVERESIZE_SIZE_LEFT 7
#define _NET_WM_MOVERESIZE_MOVE 8
#define _NET_WM_MOVERESIZE_SIZE_KEYBOARD 9
#define _NET_WM_MOVERESIZE_MOVE_KEYBOARD 10
#define _NET_WM_MOVERESIZE_CANCEL 11
static int
query_pressed_buttons (MetaWindow *window)
{
double x, y, query_root_x, query_root_y;
Window root, child;
XIButtonState buttons;
XIModifierState mods;
XIGroupState group;
int button = 0;
meta_error_trap_push (window->display);
XIQueryPointer (window->display->xdisplay,
META_VIRTUAL_CORE_POINTER_ID,
window->xwindow,
&root, &child,
&query_root_x, &query_root_y,
&x, &y,
&buttons, &mods, &group);
if (meta_error_trap_pop_with_return (window->display) != Success)
goto out;
if (XIMaskIsSet (buttons.mask, Button1))
button |= 1 << 1;
if (XIMaskIsSet (buttons.mask, Button2))
button |= 1 << 2;
if (XIMaskIsSet (buttons.mask, Button3))
button |= 1 << 3;
free (buttons.mask);
out:
return button;
}
gboolean
meta_window_x11_client_message (MetaWindow *window,
XEvent *event)
{
MetaDisplay *display;
display = window->display;
if (window->override_redirect)
{
/* Don't warn here: we could warn on any of the messages below,
* but we might also receive other client messages that are
* part of protocols we don't know anything about. So, silently
* ignoring is simplest.
*/
return FALSE;
}
if (event->xclient.message_type ==
display->atom__NET_CLOSE_WINDOW)
{
guint32 timestamp;
if (event->xclient.data.l[0] != 0)
timestamp = event->xclient.data.l[0];
else
{
meta_warning ("Receiving a NET_CLOSE_WINDOW message for %s without "
"a timestamp! This means some buggy (outdated) "
"application is on the loose!\n",
window->desc);
timestamp = meta_display_get_current_time (window->display);
}
meta_window_delete (window, timestamp);
return TRUE;
}
else if (event->xclient.message_type ==
display->atom__NET_WM_DESKTOP)
{
int space;
MetaWorkspace *workspace;
space = event->xclient.data.l[0];
meta_verbose ("Request to move %s to workspace %d\n",
window->desc, space);
workspace =
meta_screen_get_workspace_by_index (window->screen,
space);
if (workspace)
{
if (window->on_all_workspaces_requested)
meta_window_unstick (window);
meta_window_change_workspace (window, workspace);
}
else if (space == (int) 0xFFFFFFFF)
{
meta_window_stick (window);
}
else
{
meta_verbose ("No such workspace %d for screen\n", space);
}
meta_verbose ("Window %s now on_all_workspaces = %d\n",
window->desc, window->on_all_workspaces);
return TRUE;
}
else if (event->xclient.message_type ==
display->atom__NET_WM_STATE)
{
gulong action;
Atom first;
Atom second;
action = event->xclient.data.l[0];
first = event->xclient.data.l[1];
second = event->xclient.data.l[2];
if (meta_is_verbose ())
{
char *str1;
char *str2;
meta_error_trap_push_with_return (display);
str1 = XGetAtomName (display->xdisplay, first);
if (meta_error_trap_pop_with_return (display) != Success)
str1 = NULL;
meta_error_trap_push_with_return (display);
str2 = XGetAtomName (display->xdisplay, second);
if (meta_error_trap_pop_with_return (display) != Success)
str2 = NULL;
meta_verbose ("Request to change _NET_WM_STATE action %lu atom1: %s atom2: %s\n",
action,
str1 ? str1 : "(unknown)",
str2 ? str2 : "(unknown)");
meta_XFree (str1);
meta_XFree (str2);
}
if (first == display->atom__NET_WM_STATE_SHADED ||
second == display->atom__NET_WM_STATE_SHADED)
{
gboolean shade;
guint32 timestamp;
/* Stupid protocol has no timestamp; of course, shading
* sucks anyway so who really cares that we're forced to do
* a roundtrip here?
*/
timestamp = meta_display_get_current_time_roundtrip (window->display);
shade = (action == _NET_WM_STATE_ADD ||
(action == _NET_WM_STATE_TOGGLE && !window->shaded));
if (shade && window->has_shade_func)
meta_window_shade (window, timestamp);
else
meta_window_unshade (window, timestamp);
}
if (first == display->atom__NET_WM_STATE_FULLSCREEN ||
second == display->atom__NET_WM_STATE_FULLSCREEN)
{
gboolean make_fullscreen;
make_fullscreen = (action == _NET_WM_STATE_ADD ||
(action == _NET_WM_STATE_TOGGLE && !window->fullscreen));
if (make_fullscreen && window->has_fullscreen_func)
meta_window_make_fullscreen (window);
else
meta_window_unmake_fullscreen (window);
}
if (first == display->atom__NET_WM_STATE_MAXIMIZED_HORZ ||
second == display->atom__NET_WM_STATE_MAXIMIZED_HORZ ||
first == display->atom__NET_WM_STATE_MAXIMIZED_VERT ||
second == display->atom__NET_WM_STATE_MAXIMIZED_VERT)
{
gboolean max;
MetaMaximizeFlags directions = 0;
max = (action == _NET_WM_STATE_ADD ||
(action == _NET_WM_STATE_TOGGLE &&
!window->maximized_horizontally));
if (first == display->atom__NET_WM_STATE_MAXIMIZED_HORZ ||
second == display->atom__NET_WM_STATE_MAXIMIZED_HORZ)
directions |= META_MAXIMIZE_HORIZONTAL;
if (first == display->atom__NET_WM_STATE_MAXIMIZED_VERT ||
second == display->atom__NET_WM_STATE_MAXIMIZED_VERT)
directions |= META_MAXIMIZE_VERTICAL;
if (max && window->has_maximize_func)
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
meta_window_maximize (window, directions);
}
else
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
meta_window_unmaximize (window, directions);
}
}
if (first == display->atom__NET_WM_STATE_MODAL ||
second == display->atom__NET_WM_STATE_MODAL)
{
window->wm_state_modal =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_modal);
meta_window_recalc_window_type (window);
meta_window_queue(window, META_QUEUE_MOVE_RESIZE);
}
if (first == display->atom__NET_WM_STATE_SKIP_PAGER ||
second == display->atom__NET_WM_STATE_SKIP_PAGER)
{
window->wm_state_skip_pager =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->skip_pager);
meta_window_recalc_features (window);
meta_window_x11_set_net_wm_state (window);
}
if (first == display->atom__NET_WM_STATE_SKIP_TASKBAR ||
second == display->atom__NET_WM_STATE_SKIP_TASKBAR)
{
window->wm_state_skip_taskbar =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->skip_taskbar);
meta_window_recalc_features (window);
meta_window_x11_set_net_wm_state (window);
}
if (first == display->atom__NET_WM_STATE_ABOVE ||
second == display->atom__NET_WM_STATE_ABOVE)
{
if ((action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_demands_attention))
meta_window_make_above (window);
else
meta_window_unmake_above (window);
}
if (first == display->atom__NET_WM_STATE_BELOW ||
second == display->atom__NET_WM_STATE_BELOW)
{
window->wm_state_below =
(action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_below);
meta_window_update_layer (window);
meta_window_x11_set_net_wm_state (window);
}
if (first == display->atom__NET_WM_STATE_DEMANDS_ATTENTION ||
second == display->atom__NET_WM_STATE_DEMANDS_ATTENTION)
{
if ((action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->wm_state_demands_attention))
meta_window_set_demands_attention (window);
else
meta_window_unset_demands_attention (window);
}
if (first == display->atom__NET_WM_STATE_STICKY ||
second == display->atom__NET_WM_STATE_STICKY)
{
if ((action == _NET_WM_STATE_ADD) ||
(action == _NET_WM_STATE_TOGGLE && !window->on_all_workspaces_requested))
meta_window_stick (window);
else
meta_window_unstick (window);
}
return TRUE;
}
else if (event->xclient.message_type ==
display->atom_WM_CHANGE_STATE)
{
meta_verbose ("WM_CHANGE_STATE client message, state: %ld\n",
event->xclient.data.l[0]);
if (event->xclient.data.l[0] == IconicState &&
window->has_minimize_func)
meta_window_minimize (window);
return TRUE;
}
else if (event->xclient.message_type ==
display->atom__NET_WM_MOVERESIZE)
{
int x_root;
int y_root;
int action;
MetaGrabOp op;
int button;
guint32 timestamp;
/* _NET_WM_MOVERESIZE messages are almost certainly going to come from
* clients when users click on the fake "frame" that the client has,
* thus we should also treat such messages as though it were a
* "frame action".
*/
gboolean const frame_action = TRUE;
x_root = event->xclient.data.l[0];
y_root = event->xclient.data.l[1];
action = event->xclient.data.l[2];
button = event->xclient.data.l[3];
/* FIXME: What a braindead protocol; no timestamp?!? */
timestamp = meta_display_get_current_time_roundtrip (display);
meta_topic (META_DEBUG_WINDOW_OPS,
"Received _NET_WM_MOVERESIZE message on %s, %d,%d action = %d, button %d\n",
window->desc,
x_root, y_root, action, button);
op = META_GRAB_OP_NONE;
switch (action)
{
case _NET_WM_MOVERESIZE_SIZE_TOPLEFT:
op = META_GRAB_OP_RESIZING_NW;
break;
case _NET_WM_MOVERESIZE_SIZE_TOP:
op = META_GRAB_OP_RESIZING_N;
break;
case _NET_WM_MOVERESIZE_SIZE_TOPRIGHT:
op = META_GRAB_OP_RESIZING_NE;
break;
case _NET_WM_MOVERESIZE_SIZE_RIGHT:
op = META_GRAB_OP_RESIZING_E;
break;
case _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT:
op = META_GRAB_OP_RESIZING_SE;
break;
case _NET_WM_MOVERESIZE_SIZE_BOTTOM:
op = META_GRAB_OP_RESIZING_S;
break;
case _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT:
op = META_GRAB_OP_RESIZING_SW;
break;
case _NET_WM_MOVERESIZE_SIZE_LEFT:
op = META_GRAB_OP_RESIZING_W;
break;
case _NET_WM_MOVERESIZE_MOVE:
op = META_GRAB_OP_MOVING;
break;
case _NET_WM_MOVERESIZE_SIZE_KEYBOARD:
op = META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN;
break;
case _NET_WM_MOVERESIZE_MOVE_KEYBOARD:
op = META_GRAB_OP_KEYBOARD_MOVING;
break;
case _NET_WM_MOVERESIZE_CANCEL:
/* handled below */
break;
default:
break;
}
if (action == _NET_WM_MOVERESIZE_CANCEL)
{
meta_display_end_grab_op (window->display, timestamp);
}
else if (op != META_GRAB_OP_NONE &&
((window->has_move_func && op == META_GRAB_OP_KEYBOARD_MOVING) ||
(window->has_resize_func && op == META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN)))
{
meta_window_begin_grab_op (window, op, frame_action, timestamp);
}
else if (op != META_GRAB_OP_NONE &&
((window->has_move_func && op == META_GRAB_OP_MOVING) ||
(window->has_resize_func &&
(op != META_GRAB_OP_MOVING &&
op != META_GRAB_OP_KEYBOARD_MOVING))))
{
int button_mask;
meta_topic (META_DEBUG_WINDOW_OPS,
"Beginning move/resize with button = %d\n", button);
meta_display_begin_grab_op (window->display,
window->screen,
window,
op,
FALSE,
frame_action,
button, 0,
timestamp,
x_root,
y_root);
button_mask = query_pressed_buttons (window);
if (button == 0)
{
/*
* the button SHOULD already be included in the message
*/
if ((button_mask & (1 << 1)) != 0)
button = 1;
else if ((button_mask & (1 << 2)) != 0)
button = 2;
else if ((button_mask & (1 << 3)) != 0)
button = 3;
if (button != 0)
window->display->grab_button = button;
else
meta_display_end_grab_op (window->display,
timestamp);
}
else
{
/* There is a potential race here. If the user presses and
* releases their mouse button very fast, it's possible for
* both the ButtonPress and ButtonRelease to be sent to the
* client before it can get a chance to send _NET_WM_MOVERESIZE
* to us. When that happens, we'll become stuck in a grab
* state, as we haven't received a ButtonRelease to cancel the
* grab.
*
* We can solve this by querying after we take the explicit
* pointer grab -- if the button isn't pressed, we cancel the
* drag immediately.
*/
if ((button_mask & (1 << button)) == 0)
meta_display_end_grab_op (window->display, timestamp);
}
}
return TRUE;
}
else if (event->xclient.message_type ==
display->atom__NET_MOVERESIZE_WINDOW)
{
int gravity;
guint value_mask;
gravity = (event->xclient.data.l[0] & 0xff);
value_mask = (event->xclient.data.l[0] & 0xf00) >> 8;
/* source = (event->xclient.data.l[0] & 0xf000) >> 12; */
if (gravity == 0)
gravity = window->size_hints.win_gravity;
meta_window_move_resize_request(window,
value_mask,
gravity,
event->xclient.data.l[1], /* x */
event->xclient.data.l[2], /* y */
event->xclient.data.l[3], /* width */
event->xclient.data.l[4]); /* height */
}
else if (event->xclient.message_type ==
display->atom__NET_ACTIVE_WINDOW)
{
MetaClientType source_indication;
guint32 timestamp;
meta_verbose ("_NET_ACTIVE_WINDOW request for window '%s', activating\n",
window->desc);
source_indication = event->xclient.data.l[0];
timestamp = event->xclient.data.l[1];
if (source_indication > META_CLIENT_TYPE_MAX_RECOGNIZED)
source_indication = META_CLIENT_TYPE_UNKNOWN;
if (timestamp == 0)
{
/* Client using older EWMH _NET_ACTIVE_WINDOW without a timestamp */
meta_warning ("Buggy client sent a _NET_ACTIVE_WINDOW message with a "
"timestamp of 0 for %s\n",
window->desc);
timestamp = meta_display_get_current_time (display);
}
meta_window_activate_full (window, timestamp, source_indication, NULL);
return TRUE;
}
else if (event->xclient.message_type ==
display->atom__NET_WM_FULLSCREEN_MONITORS)
{
gulong top, bottom, left, right;
meta_verbose ("_NET_WM_FULLSCREEN_MONITORS request for window '%s'\n",
window->desc);
top = meta_screen_xinerama_index_to_monitor_index (window->screen,
event->xclient.data.l[0]);
bottom = meta_screen_xinerama_index_to_monitor_index (window->screen,
event->xclient.data.l[1]);
left = meta_screen_xinerama_index_to_monitor_index (window->screen,
event->xclient.data.l[2]);
right = meta_screen_xinerama_index_to_monitor_index (window->screen,
event->xclient.data.l[3]);
/* source_indication = event->xclient.data.l[4]; */
meta_window_update_fullscreen_monitors (window, top, bottom, left, right);
}
return FALSE;
}
static void
set_wm_state_on_xwindow (MetaDisplay *display,
Window xwindow,
int state)
{
unsigned long data[2];
/* Mutter doesn't use icon windows, so data[1] should be None
* according to the ICCCM 2.0 Section 4.1.3.1.
*/
data[0] = state;
data[1] = None;
meta_error_trap_push (display);
XChangeProperty (display->xdisplay, xwindow,
display->atom_WM_STATE,
display->atom_WM_STATE,
32, PropModeReplace, (guchar*) data, 2);
meta_error_trap_pop (display);
}
void
meta_window_x11_set_wm_state (MetaWindow *window)
{
int state;
if (window->withdrawn)
state = WithdrawnState;
else if (window->iconic)
state = IconicState;
else
state = NormalState;
set_wm_state_on_xwindow (window->display, window->xwindow, state);
}
/* The MUTTER_WM_CLASS_FILTER environment variable is designed for
* performance and regression testing environments where we want to do
* tests with only a limited set of windows and ignore all other windows
*
* When it is set to a comma separated list of WM_CLASS class names, all
* windows not matching the list will be ignored.
*
* Returns TRUE if window has been filtered out and should be ignored.
*/
static gboolean
maybe_filter_xwindow (MetaDisplay *display,
Window xwindow,
gboolean must_be_viewable,
XWindowAttributes *attrs)
{
static char **filter_wm_classes = NULL;
static gboolean initialized = FALSE;
XClassHint class_hint;
gboolean filtered;
Status success;
int i;
if (!initialized)
{
const char *filter_string = g_getenv ("MUTTER_WM_CLASS_FILTER");
if (filter_string)
filter_wm_classes = g_strsplit (filter_string, ",", -1);
initialized = TRUE;
}
if (!filter_wm_classes || !filter_wm_classes[0])
return FALSE;
filtered = TRUE;
meta_error_trap_push (display);
success = XGetClassHint (display->xdisplay, xwindow, &class_hint);
if (success)
{
for (i = 0; filter_wm_classes[i]; i++)
{
if (strcmp (class_hint.res_class, filter_wm_classes[i]) == 0)
{
filtered = FALSE;
break;
}
}
XFree (class_hint.res_name);
XFree (class_hint.res_class);
}
if (filtered)
{
/* We want to try and get the window managed by the next WM that come along,
* so we need to make sure that windows that are requested to be mapped while
* Mutter is running (!must_be_viewable), or windows already viewable at startup
* get a non-withdrawn WM_STATE property. Previously unmapped windows are left
* with whatever WM_STATE property they had.
*/
if (!must_be_viewable || attrs->map_state == IsViewable)
{
gulong old_state;
if (!meta_prop_get_cardinal_with_atom_type (display, xwindow,
display->atom_WM_STATE,
display->atom_WM_STATE,
&old_state))
old_state = WithdrawnState;
if (old_state == WithdrawnState)
set_wm_state_on_xwindow (display, xwindow, NormalState);
}
/* Make sure filtered windows are hidden from view */
XUnmapWindow (display->xdisplay, xwindow);
}
meta_error_trap_pop (display);
return filtered;
}
static gboolean
is_our_xwindow (MetaDisplay *display,
MetaScreen *screen,
Window xwindow,
XWindowAttributes *attrs)
{
if (xwindow == screen->no_focus_window)
return TRUE;
if (xwindow == screen->flash_window)
return TRUE;
if (xwindow == screen->wm_sn_selection_window)
return TRUE;
if (xwindow == screen->wm_cm_selection_window)
return TRUE;
if (xwindow == screen->guard_window)
return TRUE;
if (display->compositor && xwindow == XCompositeGetOverlayWindow (display->xdisplay, screen->xroot))
return TRUE;
/* Any windows created via meta_create_offscreen_window */
if (attrs->override_redirect && attrs->x == -100 && attrs->y == -100 && attrs->width == 1 && attrs->height == 1)
return TRUE;
return FALSE;
}
#ifdef WITH_VERBOSE_MODE
static const char*
wm_state_to_string (int state)
{
switch (state)
{
case NormalState:
return "NormalState";
case IconicState:
return "IconicState";
case WithdrawnState:
return "WithdrawnState";
}
return "Unknown";
}
#endif
MetaWindow *
meta_window_x11_new (MetaDisplay *display,
Window xwindow,
gboolean must_be_viewable,
MetaCompEffect effect)
{
XWindowAttributes attrs;
MetaScreen *screen = NULL;
GSList *tmp;
gulong existing_wm_state;
MetaWindow *window = NULL;
gulong event_mask;
meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
{
meta_verbose ("Not managing no_focus_window 0x%lx\n",
xwindow);
return NULL;
}
meta_error_trap_push (display); /* Push a trap over all of window
* creation, to reduce XSync() calls
*/
/*
* This function executes without any server grabs held. This means that
* the window could have already gone away, or could go away at any point,
* so we must be careful with X error handling.
*/
if (!XGetWindowAttributes (display->xdisplay, xwindow, &attrs))
{
meta_verbose ("Failed to get attributes for window 0x%lx\n",
xwindow);
goto error;
}
for (tmp = display->screens; tmp != NULL; tmp = tmp->next)
{
MetaScreen *scr = tmp->data;
if (scr->xroot == attrs.root)
{
screen = tmp->data;
break;
}
}
g_assert (screen);
if (is_our_xwindow (display, screen, xwindow, &attrs))
{
meta_verbose ("Not managing our own windows\n");
goto error;
}
if (maybe_filter_xwindow (display, xwindow, must_be_viewable, &attrs))
{
meta_verbose ("Not managing filtered window\n");
goto error;
}
existing_wm_state = WithdrawnState;
if (must_be_viewable && attrs.map_state != IsViewable)
{
/* Only manage if WM_STATE is IconicState or NormalState */
gulong state;
/* WM_STATE isn't a cardinal, it's type WM_STATE, but is an int */
if (!(meta_prop_get_cardinal_with_atom_type (display, xwindow,
display->atom_WM_STATE,
display->atom_WM_STATE,
&state) &&
(state == IconicState || state == NormalState)))
{
meta_verbose ("Deciding not to manage unmapped or unviewable window 0x%lx\n", xwindow);
goto error;
}
existing_wm_state = state;
meta_verbose ("WM_STATE of %lx = %s\n", xwindow,
wm_state_to_string (existing_wm_state));
}
meta_error_trap_push_with_return (display);
/*
* XAddToSaveSet can only be called on windows created by a different
* client. with Mutter we want to be able to create manageable windows
* from within the process (such as a dummy desktop window). As we do not
* want this call failing to prevent the window from being managed, we
* call this before creating the return-checked error trap.
*/
XAddToSaveSet (display->xdisplay, xwindow);
meta_error_trap_push_with_return (display);
event_mask = PropertyChangeMask | ColormapChangeMask;
if (attrs.override_redirect)
event_mask |= StructureNotifyMask;
/* If the window is from this client (a menu, say) we need to augment
* the event mask, not replace it. For windows from other clients,
* attrs.your_event_mask will be empty at this point.
*/
XSelectInput (display->xdisplay, xwindow, attrs.your_event_mask | event_mask);
{
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
meta_core_add_old_event_mask (display->xdisplay, xwindow, &mask);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISetMask (mask.mask, XI_FocusIn);
XISetMask (mask.mask, XI_FocusOut);
XISelectEvents (display->xdisplay, xwindow, &mask, 1);
}
/* Get rid of any borders */
if (attrs.border_width != 0)
XSetWindowBorderWidth (display->xdisplay, xwindow, 0);
/* Get rid of weird gravities */
if (attrs.win_gravity != NorthWestGravity)
{
XSetWindowAttributes set_attrs;
set_attrs.win_gravity = NorthWestGravity;
XChangeWindowAttributes (display->xdisplay,
xwindow,
CWWinGravity,
&set_attrs);
}
if (meta_error_trap_pop_with_return (display) != Success)
{
meta_verbose ("Window 0x%lx disappeared just as we tried to manage it\n",
xwindow);
goto error;
}
window = _meta_window_shared_new (display,
screen,
META_WINDOW_CLIENT_TYPE_X11,
NULL,
xwindow,
existing_wm_state,
effect,
&attrs);
/* When running as an X compositor, we can simply show the window now.
*
* When running as a Wayland compositor, we need to wait until we see
* the Wayland surface appear. We will later call meta_window_set_surface_mapped()
* to show the window in our in our set_surface_id implementation */
if (!meta_is_wayland_compositor ())
meta_window_set_surface_mapped (window, TRUE);
meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
return window;
error:
meta_error_trap_pop (display);
return NULL;
}
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