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68f261e8e2
mutter/src/x11/window-props.c
Armin Krezović 68f261e8e2 Move rest of non-X11 specific objects from MetaScreen 
This moves following objects from MetaScreen to MetaDisplay

- workareas_later and in_fullscreen_later signals and functions
- startup_sequences signals and functions
- tile_preview functions

https://bugzilla.gnome.org/show_bug.cgi?id=759538
2018-07-06 19:47:16 +02:00

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66 KiB
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* SECTION:window-props
* @short_description: #MetaWindow property handling
*
* A system which can inspect sets of properties of given windows
* and take appropriate action given their values.
*
* Note that all the meta_window_reload_propert* functions require a
* round trip to the server.
*
* The guts of this system are in meta_display_init_window_prop_hooks().
* Reading this function will give you insight into how this all fits
* together.
*/
/*
* Copyright (C) 2001, 2002, 2003 Red Hat, Inc.
* Copyright (C) 2004, 2005 Elijah Newren
* Copyright (C) 2009 Thomas Thurman
*
* 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/>.
*/
#define _XOPEN_SOURCE 500 /* for gethostname() */
#include <config.h>
#include "window-props.h"
#include "window-x11.h"
#include "window-x11-private.h"
#include "x11/meta-x11-display-private.h"
#include <meta/errors.h>
#include "xprops.h"
#include "frame.h"
#include <meta/group.h>
#include <X11/Xatom.h>
#include <unistd.h>
#include <string.h>
#include "util-private.h"
#ifndef HOST_NAME_MAX
/* Solaris headers apparently don't define this so do so manually; #326745 */
#define HOST_NAME_MAX 255
#endif
typedef void (* ReloadValueFunc) (MetaWindow *window,
MetaPropValue *value,
gboolean initial);
typedef enum {
NONE = 0,
LOAD_INIT = (1 << 0),
INCLUDE_OR = (1 << 1),
INIT_ONLY = (1 << 2),
FORCE_INIT = (1 << 3),
} MetaPropHookFlags;
struct _MetaWindowPropHooks
{
Atom property;
MetaPropValueType type;
ReloadValueFunc reload_func;
MetaPropHookFlags flags;
};
static void init_prop_value (MetaWindow *window,
MetaWindowPropHooks *hooks,
MetaPropValue *value);
static void reload_prop_value (MetaWindow *window,
MetaWindowPropHooks *hooks,
MetaPropValue *value,
gboolean initial);
static MetaWindowPropHooks *find_hooks (MetaX11Display *x11_display,
Atom property);
void
meta_window_reload_property_from_xwindow (MetaWindow *window,
Window xwindow,
Atom property,
gboolean initial)
{
MetaPropValue value = { 0, };
MetaWindowPropHooks *hooks;
hooks = find_hooks (window->display->x11_display, property);
if (!hooks)
return;
if ((hooks->flags & INIT_ONLY) && !initial)
return;
init_prop_value (window, hooks, &value);
meta_prop_get_values (window->display->x11_display, xwindow,
&value, 1);
reload_prop_value (window, hooks, &value,
initial);
meta_prop_free_values (&value, 1);
}
static void
meta_window_reload_property (MetaWindow *window,
Atom property,
gboolean initial)
{
meta_window_reload_property_from_xwindow (window,
window->xwindow,
property,
initial);
}
void
meta_window_load_initial_properties (MetaWindow *window)
{
int i, j;
MetaPropValue *values;
int n_properties = 0;
MetaX11Display *x11_display = window->display->x11_display;
values = g_new0 (MetaPropValue, x11_display->n_prop_hooks);
j = 0;
for (i = 0; i < x11_display->n_prop_hooks; i++)
{
MetaWindowPropHooks *hooks = &x11_display->prop_hooks_table[i];
if (hooks->flags & LOAD_INIT)
{
init_prop_value (window, hooks, &values[j]);
++j;
}
}
n_properties = j;
meta_prop_get_values (window->display->x11_display, window->xwindow,
values, n_properties);
j = 0;
for (i = 0; i < x11_display->n_prop_hooks; i++)
{
MetaWindowPropHooks *hooks = &x11_display->prop_hooks_table[i];
if (hooks->flags & LOAD_INIT)
{
/* If we didn't actually manage to load anything then we don't need
* to call the reload function; this is different from a notification
* where disappearance of a previously present value is significant.
*/
if (values[j].type != META_PROP_VALUE_INVALID ||
hooks->flags & FORCE_INIT)
reload_prop_value (window, hooks, &values[j], TRUE);
++j;
}
}
meta_prop_free_values (values, n_properties);
g_free (values);
}
/* Fill in the MetaPropValue used to get the value of "property" */
static void
init_prop_value (MetaWindow *window,
MetaWindowPropHooks *hooks,
MetaPropValue *value)
{
if (!hooks || hooks->type == META_PROP_VALUE_INVALID ||
(window->override_redirect && !(hooks->flags & INCLUDE_OR)))
{
value->type = META_PROP_VALUE_INVALID;
value->atom = None;
}
else
{
value->type = hooks->type;
value->atom = hooks->property;
}
}
static void
reload_prop_value (MetaWindow *window,
MetaWindowPropHooks *hooks,
MetaPropValue *value,
gboolean initial)
{
if (!(window->override_redirect && !(hooks->flags & INCLUDE_OR)))
(* hooks->reload_func) (window, value, initial);
}
static void
reload_wm_client_machine (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
g_free (window->wm_client_machine);
window->wm_client_machine = NULL;
if (value->type != META_PROP_VALUE_INVALID)
window->wm_client_machine = g_strdup (value->v.str);
meta_verbose ("Window has client machine \"%s\"\n",
window->wm_client_machine ? window->wm_client_machine : "unset");
if (window->wm_client_machine == NULL)
{
window->is_remote = FALSE;
}
else
{
char hostname[HOST_NAME_MAX + 1] = "";
gethostname (hostname, HOST_NAME_MAX + 1);
window->is_remote = g_strcmp0 (window->wm_client_machine, hostname) != 0;
}
}
static void
complain_about_broken_client (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
meta_warning ("Broken client! Window %s changed client leader window or SM client ID\n",
window->desc);
}
static void
reload_net_wm_window_type (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MetaX11Display *x11_display = window->display->x11_display;
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
if (value->type != META_PROP_VALUE_INVALID)
{
int i;
for (i = 0; i < value->v.atom_list.n_atoms; i++)
{
Atom atom = value->v.atom_list.atoms[i];
/* We break as soon as we find one we recognize,
* supposed to prefer those near the front of the list
*/
if (atom == x11_display->atom__NET_WM_WINDOW_TYPE_DESKTOP ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_DOCK ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_TOOLBAR ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_MENU ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_UTILITY ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_SPLASH ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_DIALOG ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_DROPDOWN_MENU ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_POPUP_MENU ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_TOOLTIP ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_NOTIFICATION ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_COMBO ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_DND ||
atom == x11_display->atom__NET_WM_WINDOW_TYPE_NORMAL)
{
priv->type_atom = atom;
break;
}
}
}
meta_window_x11_recalc_window_type (window);
}
static void
reload_icon (MetaWindow *window,
Atom atom)
{
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
meta_icon_cache_property_changed (&priv->icon_cache,
window->display->x11_display,
atom);
meta_window_queue(window, META_QUEUE_UPDATE_ICON);
}
static void
reload_net_wm_icon (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
reload_icon (window, window->display->x11_display->atom__NET_WM_ICON);
}
static void
reload_kwm_win_icon (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
reload_icon (window, window->display->x11_display->atom__KWM_WIN_ICON);
}
static void
reload_icon_geometry (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
if (value->v.cardinal_list.n_cardinals != 4)
{
meta_verbose ("_NET_WM_ICON_GEOMETRY on %s has %d values instead of 4\n",
window->desc, value->v.cardinal_list.n_cardinals);
}
else
{
MetaRectangle geometry;
geometry.x = (int)value->v.cardinal_list.cardinals[0];
geometry.y = (int)value->v.cardinal_list.cardinals[1];
geometry.width = (int)value->v.cardinal_list.cardinals[2];
geometry.height = (int)value->v.cardinal_list.cardinals[3];
meta_window_set_icon_geometry (window, &geometry);
}
}
else
{
meta_window_set_icon_geometry (window, NULL);
}
}
static void
meta_window_set_custom_frame_extents (MetaWindow *window,
GtkBorder *extents,
gboolean is_initial)
{
if (extents)
{
if (window->has_custom_frame_extents &&
memcmp (&window->custom_frame_extents, extents, sizeof (GtkBorder)) == 0)
return;
window->has_custom_frame_extents = TRUE;
window->custom_frame_extents = *extents;
/* If we're setting the frame extents on map, then this is telling
* us to adjust our understanding of the frame rect to match what
* GTK+ thinks it is. Future changes to the frame extents should
* trigger a resize and send a ConfigureRequest to the application.
*/
if (is_initial)
{
meta_window_client_rect_to_frame_rect (window, &window->rect, &window->rect);
meta_window_client_rect_to_frame_rect (window, &window->unconstrained_rect, &window->unconstrained_rect);
}
}
else
{
if (!window->has_custom_frame_extents)
return;
window->has_custom_frame_extents = FALSE;
memset (&window->custom_frame_extents, 0, sizeof (window->custom_frame_extents));
}
meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
}
static void
reload_gtk_frame_extents (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
if (value->v.cardinal_list.n_cardinals != 4)
{
meta_verbose ("_GTK_FRAME_EXTENTS on %s has %d values instead of 4\n",
window->desc, value->v.cardinal_list.n_cardinals);
}
else
{
GtkBorder extents;
extents.left = (int)value->v.cardinal_list.cardinals[0];
extents.right = (int)value->v.cardinal_list.cardinals[1];
extents.top = (int)value->v.cardinal_list.cardinals[2];
extents.bottom = (int)value->v.cardinal_list.cardinals[3];
meta_window_set_custom_frame_extents (window, &extents, initial);
}
}
else
{
meta_window_set_custom_frame_extents (window, NULL, initial);
}
}
static void
reload_struts (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
meta_window_update_struts (window);
}
static void
reload_wm_window_role (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
g_clear_pointer (&window->role, g_free);
if (value->type != META_PROP_VALUE_INVALID)
window->role = g_strdup (value->v.str);
}
static void
reload_net_wm_pid (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
uint32_t cardinal = (int) value->v.cardinal;
if (cardinal <= 0)
meta_warning ("Application set a bogus _NET_WM_PID %u\n",
cardinal);
else
{
window->net_wm_pid = cardinal;
meta_verbose ("Window has _NET_WM_PID %d\n",
window->net_wm_pid);
}
}
}
static void
reload_net_wm_user_time (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
uint32_t cardinal = value->v.cardinal;
meta_window_set_user_time (window, cardinal);
}
}
static void
reload_net_wm_user_time_window (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
MetaWindow *prev_owner;
/* Unregister old NET_WM_USER_TIME_WINDOW */
if (window->user_time_window != None)
{
/* See the comment to the meta_display_register_x_window call below. */
meta_x11_display_unregister_x_window (window->display->x11_display,
window->user_time_window);
/* Don't get events on not-managed windows */
XSelectInput (window->display->x11_display->xdisplay,
window->user_time_window,
NoEventMask);
}
/* Ensure the new user time window is not used on another MetaWindow,
* and unset its user time window if that is the case.
*/
prev_owner = meta_x11_display_lookup_x_window (window->display->x11_display,
value->v.xwindow);
if (prev_owner && prev_owner->user_time_window == value->v.xwindow)
{
meta_x11_display_unregister_x_window (window->display->x11_display,
value->v.xwindow);
prev_owner->user_time_window = None;
}
/* Obtain the new NET_WM_USER_TIME_WINDOW and register it */
window->user_time_window = value->v.xwindow;
if (window->user_time_window != None)
{
/* Kind of a hack; display.c:event_callback() ignores events
* for unknown windows. We make window->user_time_window
* known by registering it with window (despite the fact
* that window->xwindow is already registered with window).
* This basically means that property notifies to either the
* window->user_time_window or window->xwindow will be
* treated identically and will result in functions for
* window being called to update it. Maybe we should ignore
* any property notifies to window->user_time_window other
* than atom__NET_WM_USER_TIME ones, but I just don't care
* and it's not specified in the spec anyway.
*/
meta_x11_display_register_x_window (window->display->x11_display,
&window->user_time_window,
window);
/* Just listen for property notify events */
XSelectInput (window->display->x11_display->xdisplay,
window->user_time_window,
PropertyChangeMask);
/* Manually load the _NET_WM_USER_TIME field from the given window
* at this time as well. If the user_time_window ever broadens in
* scope, we'll probably want to load all relevant properties here.
*/
meta_window_reload_property_from_xwindow (
window,
window->user_time_window,
window->display->x11_display->atom__NET_WM_USER_TIME,
initial);
}
}
}
#define MAX_TITLE_LENGTH 512
/**
* set_title_text:
*
* Called by set_window_title() to set the value of @target to @title.
* If required and @atom is set, it will update the appropriate property.
*
* Returns: %TRUE if a new title was set.
*/
static gboolean
set_title_text (MetaWindow *window,
gboolean previous_was_modified,
const char *title,
Atom atom,
char **target)
{
gboolean modified = FALSE;
if (!target)
return FALSE;
g_free (*target);
if (!title)
*target = g_strdup ("");
else if (g_utf8_strlen (title, MAX_TITLE_LENGTH + 1) > MAX_TITLE_LENGTH)
{
*target = meta_g_utf8_strndup (title, MAX_TITLE_LENGTH);
modified = TRUE;
}
/* if WM_CLIENT_MACHINE indicates this machine is on a remote host
* lets place that hostname in the title */
else if (meta_window_is_remote (window))
{
*target = g_strdup_printf (_("%s (on %s)"),
title, window->wm_client_machine);
modified = TRUE;
}
else
*target = g_strdup (title);
if (modified && atom != None)
meta_prop_set_utf8_string_hint (window->display->x11_display,
window->xwindow,
atom, *target);
/* Bug 330671 -- Don't forget to clear _NET_WM_VISIBLE_(ICON_)NAME */
if (!modified && previous_was_modified)
{
meta_error_trap_push (window->display->x11_display);
XDeleteProperty (window->display->x11_display->xdisplay,
window->xwindow,
atom);
meta_error_trap_pop (window->display->x11_display);
}
return modified;
}
static void
set_window_title (MetaWindow *window,
const char *title)
{
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
char *new_title = NULL;
gboolean modified =
set_title_text (window,
priv->using_net_wm_visible_name,
title,
window->display->x11_display->atom__NET_WM_VISIBLE_NAME,
&new_title);
priv->using_net_wm_visible_name = modified;
meta_window_set_title (window, new_title);
g_free (new_title);
}
static void
reload_net_wm_name (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
if (value->type != META_PROP_VALUE_INVALID)
{
set_window_title (window, value->v.str);
priv->using_net_wm_name = TRUE;
meta_verbose ("Using _NET_WM_NAME for new title of %s: \"%s\"\n",
window->desc, window->title);
}
else
{
set_window_title (window, NULL);
priv->using_net_wm_name = FALSE;
if (!initial)
meta_window_reload_property (window, XA_WM_NAME, FALSE);
}
}
static void
reload_wm_name (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
if (priv->using_net_wm_name)
{
meta_verbose ("Ignoring WM_NAME \"%s\" as _NET_WM_NAME is set\n",
value->v.str);
return;
}
if (value->type != META_PROP_VALUE_INVALID)
{
g_autofree gchar *title = g_convert (value->v.str, -1,
"UTF-8", "LATIN1",
NULL, NULL, NULL);
set_window_title (window, title);
meta_verbose ("Using WM_NAME for new title of %s: \"%s\"\n",
window->desc, window->title);
}
else
{
set_window_title (window, NULL);
}
}
static void
meta_window_set_opaque_region (MetaWindow *window,
cairo_region_t *region)
{
if (cairo_region_equal (window->opaque_region, region))
return;
g_clear_pointer (&window->opaque_region, cairo_region_destroy);
if (region != NULL)
window->opaque_region = cairo_region_reference (region);
meta_compositor_window_shape_changed (window->display->compositor, window);
}
static void
reload_opaque_region (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
cairo_region_t *opaque_region = NULL;
if (value->type != META_PROP_VALUE_INVALID)
{
uint32_t *region = value->v.cardinal_list.cardinals;
int nitems = value->v.cardinal_list.n_cardinals;
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_window_set_opaque_region (window, opaque_region);
cairo_region_destroy (opaque_region);
}
static void
reload_mutter_hints (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
char *new_hints = value->v.str;
char *old_hints = window->mutter_hints;
gboolean changed = FALSE;
if (new_hints)
{
if (!old_hints || strcmp (new_hints, old_hints))
changed = TRUE;
}
else
{
if (old_hints)
changed = TRUE;
}
if (changed)
{
g_free (old_hints);
if (new_hints)
window->mutter_hints = g_strdup (new_hints);
else
window->mutter_hints = NULL;
g_object_notify (G_OBJECT (window), "mutter-hints");
}
}
else if (window->mutter_hints)
{
g_free (window->mutter_hints);
window->mutter_hints = NULL;
g_object_notify (G_OBJECT (window), "mutter-hints");
}
}
static void
reload_net_wm_state (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MetaX11Display *x11_display = window->display->x11_display;
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
int i;
/* We know this is only an initial window creation,
* clients don't change the property.
*/
if (!initial) {
/* no, they DON'T change the property */
meta_verbose ("Ignoring _NET_WM_STATE: we should be the one who set "
"the property in the first place\n");
return;
}
window->shaded = FALSE;
window->maximized_horizontally = FALSE;
window->maximized_vertically = FALSE;
window->fullscreen = FALSE;
priv->wm_state_modal = FALSE;
priv->wm_state_skip_taskbar = FALSE;
priv->wm_state_skip_pager = FALSE;
window->wm_state_above = FALSE;
window->wm_state_below = FALSE;
window->wm_state_demands_attention = FALSE;
if (value->type == META_PROP_VALUE_INVALID)
return;
i = 0;
while (i < value->v.atom_list.n_atoms)
{
if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_SHADED)
window->shaded = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_MAXIMIZED_HORZ)
window->maximize_horizontally_after_placement = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_MAXIMIZED_VERT)
window->maximize_vertically_after_placement = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_HIDDEN)
window->minimize_after_placement = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_MODAL)
priv->wm_state_modal = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_SKIP_TASKBAR)
priv->wm_state_skip_taskbar = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_SKIP_PAGER)
priv->wm_state_skip_pager = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_FULLSCREEN)
{
window->fullscreen = TRUE;
g_object_notify (G_OBJECT (window), "fullscreen");
}
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_ABOVE)
window->wm_state_above = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_BELOW)
window->wm_state_below = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_DEMANDS_ATTENTION)
window->wm_state_demands_attention = TRUE;
else if (value->v.atom_list.atoms[i] == x11_display->atom__NET_WM_STATE_STICKY)
window->on_all_workspaces_requested = TRUE;
++i;
}
meta_verbose ("Reloaded _NET_WM_STATE for %s\n",
window->desc);
meta_window_x11_recalc_window_type (window);
meta_window_recalc_features (window);
}
static void
reload_mwm_hints (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MotifWmHints *hints;
gboolean old_decorated = window->decorated;
window->mwm_decorated = TRUE;
window->mwm_border_only = FALSE;
window->mwm_has_close_func = TRUE;
window->mwm_has_minimize_func = TRUE;
window->mwm_has_maximize_func = TRUE;
window->mwm_has_move_func = TRUE;
window->mwm_has_resize_func = TRUE;
if (value->type == META_PROP_VALUE_INVALID)
{
meta_verbose ("Window %s has no MWM hints\n", window->desc);
meta_window_recalc_features (window);
return;
}
hints = value->v.motif_hints;
/* We support those MWM hints deemed non-stupid */
meta_verbose ("Window %s has MWM hints\n",
window->desc);
if (hints->flags & MWM_HINTS_DECORATIONS)
{
meta_verbose ("Window %s sets MWM_HINTS_DECORATIONS 0x%x\n",
window->desc, hints->decorations);
if (hints->decorations == 0)
window->mwm_decorated = FALSE;
/* some input methods use this */
else if (hints->decorations == MWM_DECOR_BORDER)
window->mwm_border_only = TRUE;
}
else
meta_verbose ("Decorations flag unset\n");
if (hints->flags & MWM_HINTS_FUNCTIONS)
{
gboolean toggle_value;
meta_verbose ("Window %s sets MWM_HINTS_FUNCTIONS 0x%x\n",
window->desc, hints->functions);
/* If _ALL is specified, then other flags indicate what to turn off;
* if ALL is not specified, flags are what to turn on.
* at least, I think so
*/
if ((hints->functions & MWM_FUNC_ALL) == 0)
{
toggle_value = TRUE;
meta_verbose ("Window %s disables all funcs then reenables some\n",
window->desc);
window->mwm_has_close_func = FALSE;
window->mwm_has_minimize_func = FALSE;
window->mwm_has_maximize_func = FALSE;
window->mwm_has_move_func = FALSE;
window->mwm_has_resize_func = FALSE;
}
else
{
meta_verbose ("Window %s enables all funcs then disables some\n",
window->desc);
toggle_value = FALSE;
}
if ((hints->functions & MWM_FUNC_CLOSE) != 0)
{
meta_verbose ("Window %s toggles close via MWM hints\n",
window->desc);
window->mwm_has_close_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_MINIMIZE) != 0)
{
meta_verbose ("Window %s toggles minimize via MWM hints\n",
window->desc);
window->mwm_has_minimize_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_MAXIMIZE) != 0)
{
meta_verbose ("Window %s toggles maximize via MWM hints\n",
window->desc);
window->mwm_has_maximize_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_MOVE) != 0)
{
meta_verbose ("Window %s toggles move via MWM hints\n",
window->desc);
window->mwm_has_move_func = toggle_value;
}
if ((hints->functions & MWM_FUNC_RESIZE) != 0)
{
meta_verbose ("Window %s toggles resize via MWM hints\n",
window->desc);
window->mwm_has_resize_func = toggle_value;
}
}
else
meta_verbose ("Functions flag unset\n");
meta_window_recalc_features (window);
/* We do all this anyhow at the end of meta_window_x11_new() */
if (!window->constructing)
{
if (window->decorated)
meta_window_ensure_frame (window);
else
meta_window_destroy_frame (window);
meta_window_queue (window,
META_QUEUE_MOVE_RESIZE |
/* because ensure/destroy frame may unmap: */
META_QUEUE_CALC_SHOWING);
if (old_decorated != window->decorated)
g_object_notify (G_OBJECT (window), "decorated");
}
}
static void
reload_wm_class (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
g_autofree gchar *res_class = g_convert (value->v.class_hint.res_class, -1,
"UTF-8", "LATIN1",
NULL, NULL, NULL);
g_autofree gchar *res_name = g_convert (value->v.class_hint.res_name, -1,
"UTF-8", "LATIN1",
NULL, NULL, NULL);
meta_window_set_wm_class (window, res_class, res_name);
}
else
{
meta_window_set_wm_class (window, NULL, NULL);
}
meta_verbose ("Window %s class: '%s' name: '%s'\n",
window->desc,
window->res_class ? window->res_class : "none",
window->res_name ? window->res_name : "none");
}
static void
reload_net_wm_desktop (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
window->initial_workspace_set = TRUE;
window->initial_workspace = value->v.cardinal;
meta_topic (META_DEBUG_PLACEMENT,
"Read initial workspace prop %d for %s\n",
window->initial_workspace, window->desc);
}
}
static void
reload_net_startup_id (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
guint32 timestamp = window->net_wm_user_time;
MetaWorkspace *workspace = NULL;
g_free (window->startup_id);
if (value->type != META_PROP_VALUE_INVALID)
window->startup_id = g_strdup (value->v.str);
else
window->startup_id = NULL;
/* Update timestamp and workspace on a running window */
if (!window->constructing)
{
window->initial_timestamp_set = 0;
window->initial_workspace_set = 0;
if (meta_display_apply_startup_properties (window->display, window))
{
if (window->initial_timestamp_set)
timestamp = window->initial_timestamp;
if (window->initial_workspace_set)
workspace = meta_screen_get_workspace_by_index (window->screen, window->initial_workspace);
meta_window_activate_with_workspace (window, timestamp, workspace);
}
}
meta_verbose ("New _NET_STARTUP_ID \"%s\" for %s\n",
window->startup_id ? window->startup_id : "unset",
window->desc);
}
static void
reload_update_counter (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
meta_window_x11_destroy_sync_request_alarm (window);
window->sync_request_counter = None;
if (value->v.xcounter_list.n_counters == 0)
{
meta_warning ("_NET_WM_SYNC_REQUEST_COUNTER is empty\n");
return;
}
if (value->v.xcounter_list.n_counters == 1)
{
window->sync_request_counter = value->v.xcounter_list.counters[0];
window->extended_sync_request_counter = FALSE;
}
else
{
window->sync_request_counter = value->v.xcounter_list.counters[1];
window->extended_sync_request_counter = TRUE;
}
meta_verbose ("Window has _NET_WM_SYNC_REQUEST_COUNTER 0x%lx (extended=%s)\n",
window->sync_request_counter,
window->extended_sync_request_counter ? "true" : "false");
if (window->extended_sync_request_counter)
meta_window_x11_create_sync_request_alarm (window);
}
}
#define FLAG_TOGGLED_ON(old,new,flag) \
(((old)->flags & (flag)) == 0 && \
((new)->flags & (flag)) != 0)
#define FLAG_TOGGLED_OFF(old,new,flag) \
(((old)->flags & (flag)) != 0 && \
((new)->flags & (flag)) == 0)
#define FLAG_CHANGED(old,new,flag) \
(FLAG_TOGGLED_ON(old,new,flag) || FLAG_TOGGLED_OFF(old,new,flag))
static void
spew_size_hints_differences (const XSizeHints *old,
const XSizeHints *new)
{
if (FLAG_CHANGED (old, new, USPosition))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: USPosition now %s\n",
FLAG_TOGGLED_ON (old, new, USPosition) ? "set" : "unset");
if (FLAG_CHANGED (old, new, USSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: USSize now %s\n",
FLAG_TOGGLED_ON (old, new, USSize) ? "set" : "unset");
if (FLAG_CHANGED (old, new, PPosition))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PPosition now %s\n",
FLAG_TOGGLED_ON (old, new, PPosition) ? "set" : "unset");
if (FLAG_CHANGED (old, new, PSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PSize now %s\n",
FLAG_TOGGLED_ON (old, new, PSize) ? "set" : "unset");
if (FLAG_CHANGED (old, new, PMinSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PMinSize now %s (%d x %d -> %d x %d)\n",
FLAG_TOGGLED_ON (old, new, PMinSize) ? "set" : "unset",
old->min_width, old->min_height,
new->min_width, new->min_height);
if (FLAG_CHANGED (old, new, PMaxSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PMaxSize now %s (%d x %d -> %d x %d)\n",
FLAG_TOGGLED_ON (old, new, PMaxSize) ? "set" : "unset",
old->max_width, old->max_height,
new->max_width, new->max_height);
if (FLAG_CHANGED (old, new, PResizeInc))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PResizeInc now %s (width_inc %d -> %d height_inc %d -> %d)\n",
FLAG_TOGGLED_ON (old, new, PResizeInc) ? "set" : "unset",
old->width_inc, new->width_inc,
old->height_inc, new->height_inc);
if (FLAG_CHANGED (old, new, PAspect))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PAspect now %s (min %d/%d -> %d/%d max %d/%d -> %d/%d)\n",
FLAG_TOGGLED_ON (old, new, PAspect) ? "set" : "unset",
old->min_aspect.x, old->min_aspect.y,
new->min_aspect.x, new->min_aspect.y,
old->max_aspect.x, old->max_aspect.y,
new->max_aspect.x, new->max_aspect.y);
if (FLAG_CHANGED (old, new, PBaseSize))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PBaseSize now %s (%d x %d -> %d x %d)\n",
FLAG_TOGGLED_ON (old, new, PBaseSize) ? "set" : "unset",
old->base_width, old->base_height,
new->base_width, new->base_height);
if (FLAG_CHANGED (old, new, PWinGravity))
meta_topic (META_DEBUG_GEOMETRY, "XSizeHints: PWinGravity now %s (%d -> %d)\n",
FLAG_TOGGLED_ON (old, new, PWinGravity) ? "set" : "unset",
old->win_gravity, new->win_gravity);
}
void
meta_set_normal_hints (MetaWindow *window,
XSizeHints *hints)
{
int x, y, w, h;
double minr, maxr;
/* Some convenience vars */
int minw, minh, maxw, maxh; /* min/max width/height */
int basew, baseh, winc, hinc; /* base width/height, width/height increment */
/* Save the last ConfigureRequest, which we put here.
* Values here set in the hints are supposed to
* be ignored.
*/
x = window->size_hints.x;
y = window->size_hints.y;
w = window->size_hints.width;
h = window->size_hints.height;
/* as far as I can tell, value->v.size_hints.flags is just to
* check whether we had old-style normal hints without gravity,
* base size as returned by XGetNormalHints(), so we don't
* really use it as we fixup window->size_hints to have those
* fields if they're missing.
*/
/*
* When the window is first created, NULL hints will
* be passed in which will initialize all of the fields
* as if flags were zero
*/
if (hints)
window->size_hints = *hints;
else
window->size_hints.flags = 0;
/* Put back saved ConfigureRequest. */
window->size_hints.x = x;
window->size_hints.y = y;
window->size_hints.width = w;
window->size_hints.height = h;
/* Get base size hints */
if (window->size_hints.flags & PBaseSize)
{
meta_topic (META_DEBUG_GEOMETRY, "Window %s sets base size %d x %d\n",
window->desc,
window->size_hints.base_width,
window->size_hints.base_height);
}
else if (window->size_hints.flags & PMinSize)
{
window->size_hints.base_width = window->size_hints.min_width;
window->size_hints.base_height = window->size_hints.min_height;
}
else
{
window->size_hints.base_width = 0;
window->size_hints.base_height = 0;
}
window->size_hints.flags |= PBaseSize;
/* Get min size hints */
if (window->size_hints.flags & PMinSize)
{
meta_topic (META_DEBUG_GEOMETRY, "Window %s sets min size %d x %d\n",
window->desc,
window->size_hints.min_width,
window->size_hints.min_height);
}
else if (window->size_hints.flags & PBaseSize)
{
window->size_hints.min_width = window->size_hints.base_width;
window->size_hints.min_height = window->size_hints.base_height;
}
else
{
window->size_hints.min_width = 0;
window->size_hints.min_height = 0;
}
window->size_hints.flags |= PMinSize;
/* Get max size hints */
if (window->size_hints.flags & PMaxSize)
{
meta_topic (META_DEBUG_GEOMETRY, "Window %s sets max size %d x %d\n",
window->desc,
window->size_hints.max_width,
window->size_hints.max_height);
}
else
{
window->size_hints.max_width = G_MAXINT;
window->size_hints.max_height = G_MAXINT;
window->size_hints.flags |= PMaxSize;
}
/* Get resize increment hints */
if (window->size_hints.flags & PResizeInc)
{
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets resize width inc: %d height inc: %d\n",
window->desc,
window->size_hints.width_inc,
window->size_hints.height_inc);
}
else
{
window->size_hints.width_inc = 1;
window->size_hints.height_inc = 1;
window->size_hints.flags |= PResizeInc;
}
/* Get aspect ratio hints */
if (window->size_hints.flags & PAspect)
{
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min_aspect: %d/%d max_aspect: %d/%d\n",
window->desc,
window->size_hints.min_aspect.x,
window->size_hints.min_aspect.y,
window->size_hints.max_aspect.x,
window->size_hints.max_aspect.y);
}
else
{
window->size_hints.min_aspect.x = 1;
window->size_hints.min_aspect.y = G_MAXINT;
window->size_hints.max_aspect.x = G_MAXINT;
window->size_hints.max_aspect.y = 1;
window->size_hints.flags |= PAspect;
}
/* Get gravity hint */
if (window->size_hints.flags & PWinGravity)
{
meta_topic (META_DEBUG_GEOMETRY, "Window %s sets gravity %d\n",
window->desc,
window->size_hints.win_gravity);
}
else
{
meta_topic (META_DEBUG_GEOMETRY,
"Window %s doesn't set gravity, using NW\n",
window->desc);
window->size_hints.win_gravity = NorthWestGravity;
window->size_hints.flags |= PWinGravity;
}
/*** Lots of sanity checking ***/
/* Verify all min & max hints are at least 1 pixel */
if (window->size_hints.min_width < 1)
{
/* someone is on crack */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min width to 0, which makes no sense\n",
window->desc);
window->size_hints.min_width = 1;
}
if (window->size_hints.max_width < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max width to 0, which makes no sense\n",
window->desc);
window->size_hints.max_width = 1;
}
if (window->size_hints.min_height < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min height to 0, which makes no sense\n",
window->desc);
window->size_hints.min_height = 1;
}
if (window->size_hints.max_height < 1)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max height to 0, which makes no sense\n",
window->desc);
window->size_hints.max_height = 1;
}
/* Verify size increment hints are at least 1 pixel */
if (window->size_hints.width_inc < 1)
{
/* app authors find so many ways to smoke crack */
window->size_hints.width_inc = 1;
meta_topic (META_DEBUG_GEOMETRY, "Corrected 0 width_inc to 1\n");
}
if (window->size_hints.height_inc < 1)
{
/* another cracksmoker */
window->size_hints.height_inc = 1;
meta_topic (META_DEBUG_GEOMETRY, "Corrected 0 height_inc to 1\n");
}
/* divide by 0 cracksmokers; note that x & y in (min|max)_aspect are
* numerator & denominator
*/
if (window->size_hints.min_aspect.y < 1)
window->size_hints.min_aspect.y = 1;
if (window->size_hints.max_aspect.y < 1)
window->size_hints.max_aspect.y = 1;
minw = window->size_hints.min_width; minh = window->size_hints.min_height;
maxw = window->size_hints.max_width; maxh = window->size_hints.max_height;
basew = window->size_hints.base_width; baseh = window->size_hints.base_height;
winc = window->size_hints.width_inc; hinc = window->size_hints.height_inc;
/* Make sure min and max size hints are consistent with the base + increment
* size hints. If they're not, it's not a real big deal, but it means the
* effective min and max size are more restrictive than the application
* specified values.
*/
if ((minw - basew) % winc != 0)
{
/* Take advantage of integer division throwing away the remainder... */
window->size_hints.min_width = basew + ((minw - basew)/winc + 1)*winc;
meta_topic (META_DEBUG_GEOMETRY,
"Window %s has width_inc (%d) that does not evenly divide "
"min_width - base_width (%d - %d); thus effective "
"min_width is really %d\n",
window->desc,
winc, minw, basew, window->size_hints.min_width);
minw = window->size_hints.min_width;
}
if (maxw != G_MAXINT && (maxw - basew) % winc != 0)
{
/* Take advantage of integer division throwing away the remainder... */
window->size_hints.max_width = basew + ((maxw - basew)/winc)*winc;
meta_topic (META_DEBUG_GEOMETRY,
"Window %s has width_inc (%d) that does not evenly divide "
"max_width - base_width (%d - %d); thus effective "
"max_width is really %d\n",
window->desc,
winc, maxw, basew, window->size_hints.max_width);
maxw = window->size_hints.max_width;
}
if ((minh - baseh) % hinc != 0)
{
/* Take advantage of integer division throwing away the remainder... */
window->size_hints.min_height = baseh + ((minh - baseh)/hinc + 1)*hinc;
meta_topic (META_DEBUG_GEOMETRY,
"Window %s has height_inc (%d) that does not evenly divide "
"min_height - base_height (%d - %d); thus effective "
"min_height is really %d\n",
window->desc,
hinc, minh, baseh, window->size_hints.min_height);
minh = window->size_hints.min_height;
}
if (maxh != G_MAXINT && (maxh - baseh) % hinc != 0)
{
/* Take advantage of integer division throwing away the remainder... */
window->size_hints.max_height = baseh + ((maxh - baseh)/hinc)*hinc;
meta_topic (META_DEBUG_GEOMETRY,
"Window %s has height_inc (%d) that does not evenly divide "
"max_height - base_height (%d - %d); thus effective "
"max_height is really %d\n",
window->desc,
hinc, maxh, baseh, window->size_hints.max_height);
maxh = window->size_hints.max_height;
}
/* make sure maximum size hints are compatible with minimum size hints; min
* size hints take precedence.
*/
if (window->size_hints.max_width < window->size_hints.min_width)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max width %d less than min width %d, "
"disabling resize\n",
window->desc,
window->size_hints.max_width,
window->size_hints.min_width);
maxw = window->size_hints.max_width = window->size_hints.min_width;
}
if (window->size_hints.max_height < window->size_hints.min_height)
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max height %d less than min height %d, "
"disabling resize\n",
window->desc,
window->size_hints.max_height,
window->size_hints.min_height);
maxh = window->size_hints.max_height = window->size_hints.min_height;
}
/* Make sure the aspect ratio hints are sane. */
minr = window->size_hints.min_aspect.x /
(double)window->size_hints.min_aspect.y;
maxr = window->size_hints.max_aspect.x /
(double)window->size_hints.max_aspect.y;
if (minr > maxr)
{
/* another cracksmoker; not even minimally (self) consistent */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min aspect ratio larger than max aspect "
"ratio; disabling aspect ratio constraints.\n",
window->desc);
window->size_hints.min_aspect.x = 1;
window->size_hints.min_aspect.y = G_MAXINT;
window->size_hints.max_aspect.x = G_MAXINT;
window->size_hints.max_aspect.y = 1;
}
else /* check consistency of aspect ratio hints with other hints */
{
if (minh > 0 && minr > (maxw / (double)minh))
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets min aspect ratio larger than largest "
"aspect ratio possible given min/max size constraints; "
"disabling min aspect ratio constraint.\n",
window->desc);
window->size_hints.min_aspect.x = 1;
window->size_hints.min_aspect.y = G_MAXINT;
}
if (maxr < (minw / (double)maxh))
{
/* another cracksmoker */
meta_topic (META_DEBUG_GEOMETRY,
"Window %s sets max aspect ratio smaller than smallest "
"aspect ratio possible given min/max size constraints; "
"disabling max aspect ratio constraint.\n",
window->desc);
window->size_hints.max_aspect.x = G_MAXINT;
window->size_hints.max_aspect.y = 1;
}
/* FIXME: Would be nice to check that aspect ratios are
* consistent with base and size increment constraints.
*/
}
}
static void
reload_normal_hints (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
if (value->type != META_PROP_VALUE_INVALID)
{
XSizeHints old_hints;
meta_topic (META_DEBUG_GEOMETRY, "Updating WM_NORMAL_HINTS for %s\n", window->desc);
old_hints = window->size_hints;
meta_set_normal_hints (window, value->v.size_hints.hints);
spew_size_hints_differences (&old_hints, &window->size_hints);
meta_window_recalc_features (window);
if (!initial)
meta_window_queue(window, META_QUEUE_MOVE_RESIZE);
}
}
static void
reload_wm_protocols (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
int i;
window->take_focus = FALSE;
window->delete_window = FALSE;
window->can_ping = FALSE;
if (value->type == META_PROP_VALUE_INVALID)
return;
i = 0;
while (i < value->v.atom_list.n_atoms)
{
if (value->v.atom_list.atoms[i] ==
window->display->x11_display->atom_WM_TAKE_FOCUS)
window->take_focus = TRUE;
else if (value->v.atom_list.atoms[i] ==
window->display->x11_display->atom_WM_DELETE_WINDOW)
window->delete_window = TRUE;
else if (value->v.atom_list.atoms[i] ==
window->display->x11_display->atom__NET_WM_PING)
window->can_ping = TRUE;
++i;
}
meta_verbose ("New _NET_STARTUP_ID \"%s\" for %s\n",
window->startup_id ? window->startup_id : "unset",
window->desc);
}
static void
reload_wm_hints (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
MetaWindowX11Private *priv = window_x11->priv;
Window old_group_leader;
gboolean urgent;
old_group_leader = window->xgroup_leader;
/* Fill in defaults */
window->input = TRUE;
window->initially_iconic = FALSE;
window->xgroup_leader = None;
priv->wm_hints_pixmap = None;
priv->wm_hints_mask = None;
urgent = FALSE;
if (value->type != META_PROP_VALUE_INVALID)
{
const XWMHints *hints = value->v.wm_hints;
if (hints->flags & InputHint)
window->input = hints->input;
if (hints->flags & StateHint)
window->initially_iconic = (hints->initial_state == IconicState);
if (hints->flags & WindowGroupHint)
window->xgroup_leader = hints->window_group;
if (hints->flags & IconPixmapHint)
priv->wm_hints_pixmap = hints->icon_pixmap;
if (hints->flags & IconMaskHint)
priv->wm_hints_mask = hints->icon_mask;
if (hints->flags & XUrgencyHint)
urgent = TRUE;
meta_verbose ("Read WM_HINTS input: %d iconic: %d group leader: 0x%lx pixmap: 0x%lx mask: 0x%lx\n",
window->input, window->initially_iconic,
window->xgroup_leader,
priv->wm_hints_pixmap,
priv->wm_hints_mask);
}
if (window->xgroup_leader != old_group_leader)
{
meta_verbose ("Window %s changed its group leader to 0x%lx\n",
window->desc, window->xgroup_leader);
meta_window_group_leader_changed (window);
}
meta_window_set_urgent (window, urgent);
meta_icon_cache_property_changed (&priv->icon_cache,
window->display->x11_display,
XA_WM_HINTS);
meta_window_queue (window, META_QUEUE_UPDATE_ICON | META_QUEUE_MOVE_RESIZE);
}
static void
reload_transient_for (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
MetaWindow *parent = NULL;
Window transient_for;
if (value->type != META_PROP_VALUE_INVALID)
{
transient_for = value->v.xwindow;
parent = meta_x11_display_lookup_x_window (window->display->x11_display,
transient_for);
if (!parent)
{
meta_warning ("Invalid WM_TRANSIENT_FOR window 0x%lx specified for %s.\n",
transient_for, window->desc);
transient_for = None;
}
/* Make sure there is not a loop */
while (parent)
{
if (parent == window)
{
meta_warning ("WM_TRANSIENT_FOR window 0x%lx for %s would create loop.\n",
transient_for, window->desc);
transient_for = None;
break;
}
parent = meta_x11_display_lookup_x_window (parent->display->x11_display,
parent->xtransient_for);
}
}
else
transient_for = None;
if (transient_for == window->xtransient_for)
return;
window->xtransient_for = transient_for;
if (window->xtransient_for != None)
meta_verbose ("Window %s transient for 0x%lx\n", window->desc, window->xtransient_for);
else
meta_verbose ("Window %s is not transient\n", window->desc);
if (window->xtransient_for == None ||
window->xtransient_for == window->display->x11_display->xroot)
meta_window_set_transient_for (window, NULL);
else
{
parent = meta_x11_display_lookup_x_window (window->display->x11_display,
window->xtransient_for);
meta_window_set_transient_for (window, parent);
}
}
static void
reload_gtk_theme_variant (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
char *requested_variant = NULL;
char *current_variant = window->gtk_theme_variant;
if (value->type != META_PROP_VALUE_INVALID)
{
requested_variant = value->v.str;
meta_verbose ("Requested \"%s\" theme variant for window %s.\n",
requested_variant, window->desc);
}
if (g_strcmp0 (requested_variant, current_variant) != 0)
{
g_free (current_variant);
window->gtk_theme_variant = g_strdup (requested_variant);
if (window->frame)
meta_frame_update_style (window->frame);
}
}
static void
reload_gtk_hide_titlebar_when_maximized (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
gboolean requested_value = FALSE;
gboolean current_value = window->hide_titlebar_when_maximized;
if (!meta_prefs_get_ignore_request_hide_titlebar () && value->type != META_PROP_VALUE_INVALID)
{
requested_value = ((int) value->v.cardinal == 1);
meta_verbose ("Request to hide titlebar for window %s.\n", window->desc);
}
if (requested_value == current_value)
return;
window->hide_titlebar_when_maximized = requested_value;
if (META_WINDOW_MAXIMIZED (window))
{
meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
meta_window_frame_size_changed (window);
if (window->frame)
meta_frame_update_style (window->frame);
}
}
static void
reload_bypass_compositor (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
int requested_value = 0;
int current_value = window->bypass_compositor;
if (value->type != META_PROP_VALUE_INVALID)
requested_value = (int) value->v.cardinal;
if (requested_value == current_value)
return;
if (requested_value == _NET_WM_BYPASS_COMPOSITOR_HINT_ON)
meta_verbose ("Request to bypass compositor for window %s.\n", window->desc);
else if (requested_value == _NET_WM_BYPASS_COMPOSITOR_HINT_OFF)
meta_verbose ("Request to don't bypass compositor for window %s.\n", window->desc);
else if (requested_value != _NET_WM_BYPASS_COMPOSITOR_HINT_AUTO)
return;
window->bypass_compositor = requested_value;
}
static void
reload_window_opacity (MetaWindow *window,
MetaPropValue *value,
gboolean initial)
{
guint8 opacity = 0xFF;
if (value->type != META_PROP_VALUE_INVALID)
opacity = (guint8)((gfloat)value->v.cardinal * 255.0 / ((gfloat)0xffffffff));
meta_window_set_opacity (window, opacity);
}
#define RELOAD_STRING(var_name, propname) \
static void \
reload_ ## var_name (MetaWindow *window, \
MetaPropValue *value, \
gboolean initial) \
{ \
g_free (window->var_name); \
\
if (value->type != META_PROP_VALUE_INVALID) \
window->var_name = g_strdup (value->v.str); \
else \
window->var_name = NULL; \
\
g_object_notify (G_OBJECT (window), propname); \
}
RELOAD_STRING (gtk_unique_bus_name, "gtk-unique-bus-name")
RELOAD_STRING (gtk_application_id, "gtk-application-id")
RELOAD_STRING (gtk_application_object_path, "gtk-application-object-path")
RELOAD_STRING (gtk_window_object_path, "gtk-window-object-path")
RELOAD_STRING (gtk_app_menu_object_path, "gtk-app-menu-object-path")
RELOAD_STRING (gtk_menubar_object_path, "gtk-menubar-object-path")
#undef RELOAD_STRING
/**
* meta_x11_display_init_window_prop_hooks:
* @x11_display: The #MetaDX11isplay
*
* Initialises the property hooks system. Each row in the table named "hooks"
* represents an action to take when a property is found on a newly-created
* window, or when a property changes its value.
*
* The first column shows which atom the row concerns.
* The second gives the type of the property data. The property will be
* queried for its new value, unless the type is given as
* META_PROP_VALUE_INVALID, in which case nothing will be queried.
* The third column gives the name of a callback which gets called with the
* new value. (If the new value was not retrieved because the second column
* was META_PROP_VALUE_INVALID, the callback still gets called anyway.)
* This value may be NULL, in which case no callback will be called.
*/
void
meta_x11_display_init_window_prop_hooks (MetaX11Display *x11_display)
{
/* The ordering here is significant for the properties we load
* initially: they are roughly ordered in the order we want them to
* be gotten. We want to get window name and class first so we can
* use them in error messages and such. However, name is modified
* depending on wm_client_machine, so push it slightly sooner.
*
* For override-redirect windows, we pay attention to:
*
* - properties that identify the window: useful for debugging
* purposes.
* - NET_WM_WINDOW_TYPE: can be used to do appropriate handling
* for different types of override-redirect windows.
*/
MetaWindowPropHooks hooks[] = {
{ x11_display->atom_WM_CLIENT_MACHINE, META_PROP_VALUE_STRING, reload_wm_client_machine, LOAD_INIT | INCLUDE_OR },
{ x11_display->atom__NET_WM_NAME, META_PROP_VALUE_UTF8, reload_net_wm_name, LOAD_INIT | INCLUDE_OR },
{ XA_WM_CLASS, META_PROP_VALUE_CLASS_HINT, reload_wm_class, LOAD_INIT | INCLUDE_OR },
{ x11_display->atom__NET_WM_PID, META_PROP_VALUE_CARDINAL, reload_net_wm_pid, LOAD_INIT | INCLUDE_OR },
{ XA_WM_NAME, META_PROP_VALUE_TEXT_PROPERTY, reload_wm_name, LOAD_INIT | INCLUDE_OR },
{ x11_display->atom__MUTTER_HINTS, META_PROP_VALUE_TEXT_PROPERTY, reload_mutter_hints, LOAD_INIT | INCLUDE_OR },
{ x11_display->atom__NET_WM_OPAQUE_REGION, META_PROP_VALUE_CARDINAL_LIST, reload_opaque_region, LOAD_INIT | INCLUDE_OR },
{ x11_display->atom__NET_WM_DESKTOP, META_PROP_VALUE_CARDINAL, reload_net_wm_desktop, LOAD_INIT | INIT_ONLY },
{ x11_display->atom__NET_STARTUP_ID, META_PROP_VALUE_UTF8, reload_net_startup_id, LOAD_INIT },
{ x11_display->atom__NET_WM_SYNC_REQUEST_COUNTER, META_PROP_VALUE_SYNC_COUNTER_LIST, reload_update_counter, LOAD_INIT | INCLUDE_OR },
{ XA_WM_NORMAL_HINTS, META_PROP_VALUE_SIZE_HINTS, reload_normal_hints, LOAD_INIT },
{ x11_display->atom_WM_PROTOCOLS, META_PROP_VALUE_ATOM_LIST, reload_wm_protocols, LOAD_INIT },
{ XA_WM_HINTS, META_PROP_VALUE_WM_HINTS, reload_wm_hints, LOAD_INIT },
{ x11_display->atom__NET_WM_USER_TIME, META_PROP_VALUE_CARDINAL, reload_net_wm_user_time, LOAD_INIT },
{ x11_display->atom__NET_WM_STATE, META_PROP_VALUE_ATOM_LIST, reload_net_wm_state, LOAD_INIT | INIT_ONLY },
{ x11_display->atom__MOTIF_WM_HINTS, META_PROP_VALUE_MOTIF_HINTS, reload_mwm_hints, LOAD_INIT },
{ XA_WM_TRANSIENT_FOR, META_PROP_VALUE_WINDOW, reload_transient_for, LOAD_INIT },
{ x11_display->atom__GTK_THEME_VARIANT, META_PROP_VALUE_UTF8, reload_gtk_theme_variant, LOAD_INIT },
{ x11_display->atom__GTK_HIDE_TITLEBAR_WHEN_MAXIMIZED, META_PROP_VALUE_CARDINAL, reload_gtk_hide_titlebar_when_maximized, LOAD_INIT },
{ x11_display->atom__GTK_APPLICATION_ID, META_PROP_VALUE_UTF8, reload_gtk_application_id, LOAD_INIT },
{ x11_display->atom__GTK_UNIQUE_BUS_NAME, META_PROP_VALUE_UTF8, reload_gtk_unique_bus_name, LOAD_INIT },
{ x11_display->atom__GTK_APPLICATION_OBJECT_PATH, META_PROP_VALUE_UTF8, reload_gtk_application_object_path, LOAD_INIT },
{ x11_display->atom__GTK_WINDOW_OBJECT_PATH, META_PROP_VALUE_UTF8, reload_gtk_window_object_path, LOAD_INIT },
{ x11_display->atom__GTK_APP_MENU_OBJECT_PATH, META_PROP_VALUE_UTF8, reload_gtk_app_menu_object_path, LOAD_INIT },
{ x11_display->atom__GTK_MENUBAR_OBJECT_PATH, META_PROP_VALUE_UTF8, reload_gtk_menubar_object_path, LOAD_INIT },
{ x11_display->atom__GTK_FRAME_EXTENTS, META_PROP_VALUE_CARDINAL_LIST,reload_gtk_frame_extents, LOAD_INIT },
{ x11_display->atom__NET_WM_USER_TIME_WINDOW, META_PROP_VALUE_WINDOW, reload_net_wm_user_time_window, LOAD_INIT },
{ x11_display->atom__NET_WM_ICON, META_PROP_VALUE_INVALID, reload_net_wm_icon, NONE },
{ x11_display->atom__KWM_WIN_ICON, META_PROP_VALUE_INVALID, reload_kwm_win_icon, NONE },
{ x11_display->atom__NET_WM_ICON_GEOMETRY, META_PROP_VALUE_CARDINAL_LIST, reload_icon_geometry, LOAD_INIT },
{ x11_display->atom_WM_CLIENT_LEADER, META_PROP_VALUE_INVALID, complain_about_broken_client, NONE },
{ x11_display->atom_SM_CLIENT_ID, META_PROP_VALUE_INVALID, complain_about_broken_client, NONE },
{ x11_display->atom_WM_WINDOW_ROLE, META_PROP_VALUE_STRING, reload_wm_window_role, LOAD_INIT | FORCE_INIT },
{ x11_display->atom__NET_WM_WINDOW_TYPE, META_PROP_VALUE_ATOM_LIST, reload_net_wm_window_type, LOAD_INIT | INCLUDE_OR | FORCE_INIT },
{ x11_display->atom__NET_WM_STRUT, META_PROP_VALUE_INVALID, reload_struts, NONE },
{ x11_display->atom__NET_WM_STRUT_PARTIAL, META_PROP_VALUE_INVALID, reload_struts, NONE },
{ x11_display->atom__NET_WM_BYPASS_COMPOSITOR, META_PROP_VALUE_CARDINAL, reload_bypass_compositor, LOAD_INIT | INCLUDE_OR },
{ x11_display->atom__NET_WM_WINDOW_OPACITY, META_PROP_VALUE_CARDINAL, reload_window_opacity, LOAD_INIT | INCLUDE_OR },
{ 0 },
};
MetaWindowPropHooks *table = g_memdup (hooks, sizeof (hooks)),
*cursor = table;
g_assert (x11_display->prop_hooks == NULL);
x11_display->prop_hooks_table = (gpointer) table;
x11_display->prop_hooks = g_hash_table_new (NULL, NULL);
while (cursor->property)
{
/* Doing initial loading doesn't make sense if we just want notification */
g_assert (!((cursor->flags & LOAD_INIT) && cursor->type == META_PROP_VALUE_INVALID));
/* Forcing initialization doesn't make sense if not loading initially */
g_assert ((cursor->flags & LOAD_INIT) || !(cursor->flags & FORCE_INIT));
/* Atoms are safe to use with GINT_TO_POINTER because it's safe with
* anything 32 bits or less, and atoms are 32 bits with the top three
* bits clear. (Scheifler & Gettys, 2e, p372)
*/
g_hash_table_insert (x11_display->prop_hooks,
GINT_TO_POINTER (cursor->property),
cursor);
cursor++;
}
x11_display->n_prop_hooks = cursor - table;
}
void
meta_x11_display_free_window_prop_hooks (MetaX11Display *x11_display)
{
g_hash_table_unref (x11_display->prop_hooks);
x11_display->prop_hooks = NULL;
g_free (x11_display->prop_hooks_table);
x11_display->prop_hooks_table = NULL;
}
static MetaWindowPropHooks *
find_hooks (MetaX11Display *x11_display,
Atom property)
{
return g_hash_table_lookup (x11_display->prop_hooks,
GINT_TO_POINTER (property));
}
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