mutter/src/group.c
Rob Adams db108c1fc3 Add my copyright notice to a number of files on which it should already
2004-02-23  Rob Adams  <readams@readams.net>

	Add my copyright notice to a number of files on which it should
	already exist.

	* src/window.c (meta_window_notify_focus): modify code to move to
	front of MRU list so that we can have an assert that it was there
	in the first place.  This code may be causing some crashes.  See
	#131196.
2004-02-23 01:48:29 +00:00

265 lines
6.6 KiB
C

/* Metacity window groups */
/*
* Copyright (C) 2002 Red Hat Inc.
* Copyright (C) 2003 Rob Adams
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <config.h>
#include "util.h"
#include "group-private.h"
#include "group-props.h"
#include "window.h"
static MetaGroup*
meta_group_new (MetaDisplay *display,
Window group_leader)
{
MetaGroup *group;
#define N_INITIAL_PROPS 3
Atom initial_props[N_INITIAL_PROPS];
int i;
g_assert (N_INITIAL_PROPS == (int) G_N_ELEMENTS (initial_props));
group = g_new0 (MetaGroup, 1);
group->display = display;
group->windows = NULL;
group->group_leader = group_leader;
group->refcount = 1; /* owned by caller, hash table has only weak ref */
if (display->groups_by_leader == NULL)
display->groups_by_leader = g_hash_table_new (meta_unsigned_long_hash,
meta_unsigned_long_equal);
g_assert (g_hash_table_lookup (display->groups_by_leader, &group_leader) == NULL);
g_hash_table_insert (display->groups_by_leader,
&group->group_leader,
group);
/* Fill these in the order we want them to be gotten */
i = 0;
initial_props[i++] = display->atom_wm_client_machine;
initial_props[i++] = display->atom_net_wm_pid;
initial_props[i++] = display->atom_net_startup_id;
g_assert (N_INITIAL_PROPS == i);
meta_group_reload_properties (group, initial_props, N_INITIAL_PROPS);
meta_topic (META_DEBUG_GROUPS,
"Created new group with leader 0x%lx\n",
group->group_leader);
return group;
}
static void
meta_group_unref (MetaGroup *group)
{
g_return_if_fail (group->refcount > 0);
group->refcount -= 1;
if (group->refcount == 0)
{
meta_topic (META_DEBUG_GROUPS,
"Destroying group with leader 0x%lx\n",
group->group_leader);
g_assert (group->display->groups_by_leader != NULL);
g_hash_table_remove (group->display->groups_by_leader,
&group->group_leader);
/* mop up hash table, this is how it gets freed on display close */
if (g_hash_table_size (group->display->groups_by_leader) == 0)
{
g_hash_table_destroy (group->display->groups_by_leader);
group->display->groups_by_leader = NULL;
}
g_free (group->wm_client_machine);
g_free (group->startup_id);
g_free (group);
}
}
MetaGroup*
meta_window_get_group (MetaWindow *window)
{
if (window->unmanaging)
return NULL;
g_assert (window->group != NULL);
return window->group;
}
void
meta_window_compute_group (MetaWindow* window)
{
MetaGroup *group;
/* use window->xwindow if no window->xgroup_leader */
group = NULL;
if (window->display->groups_by_leader)
{
if (window->xgroup_leader != None)
group = g_hash_table_lookup (window->display->groups_by_leader,
&window->xgroup_leader);
else
group = g_hash_table_lookup (window->display->groups_by_leader,
&window->xwindow);
}
if (group != NULL)
{
window->group = group;
group->refcount += 1;
}
else
{
if (window->xgroup_leader != None)
group = meta_group_new (window->display,
window->xgroup_leader);
else
group = meta_group_new (window->display,
window->xwindow);
window->group = group;
}
window->group->windows = g_slist_prepend (window->group->windows,
window);
meta_topic (META_DEBUG_GROUPS,
"Adding %s to group with leader 0x%lx\n",
window->desc, group->group_leader);
}
static void
remove_window_from_group (MetaWindow *window)
{
if (window->group != NULL)
{
meta_topic (META_DEBUG_GROUPS,
"Removing %s from group with leader 0x%lx\n",
window->desc, window->group->group_leader);
window->group->windows =
g_slist_remove (window->group->windows,
window);
meta_group_unref (window->group);
window->group = NULL;
}
}
void
meta_window_group_leader_changed (MetaWindow *window)
{
remove_window_from_group (window);
meta_window_compute_group (window);
}
void
meta_window_shutdown_group (MetaWindow *window)
{
remove_window_from_group (window);
}
MetaGroup*
meta_display_lookup_group (MetaDisplay *display,
Window group_leader)
{
MetaGroup *group;
group = NULL;
if (display->groups_by_leader)
group = g_hash_table_lookup (display->groups_by_leader,
&group_leader);
return group;
}
GSList*
meta_group_list_windows (MetaGroup *group)
{
return g_slist_copy (group->windows);
}
void
meta_group_update_layers (MetaGroup *group)
{
GSList *tmp;
GSList *frozen_stacks;
if (group->windows == NULL)
return;
frozen_stacks = NULL;
tmp = group->windows;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
/* we end up freezing the same stack a lot of times,
* but doesn't hurt anything. have to handle
* groups that span 2 screens.
*/
meta_stack_freeze (window->screen->stack);
frozen_stacks = g_slist_prepend (frozen_stacks, window->screen->stack);
meta_stack_update_layer (window->screen->stack,
window);
tmp = tmp->next;
}
tmp = frozen_stacks;
while (tmp != NULL)
{
meta_stack_thaw (tmp->data);
tmp = tmp->next;
}
g_slist_free (frozen_stacks);
}
const char*
meta_group_get_startup_id (MetaGroup *group)
{
return group->startup_id;
}
gboolean
meta_group_property_notify (MetaGroup *group,
XEvent *event)
{
meta_group_reload_property (group,
event->xproperty.atom);
return TRUE;
}