mirror of
https://github.com/brl/mutter.git
synced 2024-11-27 18:40:40 -05:00
312 lines
7.6 KiB
C
312 lines
7.6 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
|
|
|
/*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:group
|
|
* @title: MetaGroup
|
|
* @short_description: Mutter window groups
|
|
*
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <meta/util.h>
|
|
#include "group-private.h"
|
|
#include "group-props.h"
|
|
#include "window-private.h"
|
|
#include <meta/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);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* meta_window_get_group: (skip)
|
|
* @window: a #MetaWindow
|
|
*
|
|
*/
|
|
MetaGroup*
|
|
meta_window_get_group (MetaWindow *window)
|
|
{
|
|
if (window->unmanaging)
|
|
return NULL;
|
|
|
|
return window->group;
|
|
}
|
|
|
|
void
|
|
meta_window_compute_group (MetaWindow* window)
|
|
{
|
|
MetaGroup *group;
|
|
MetaWindow *ancestor;
|
|
|
|
/* use window->xwindow if no window->xgroup_leader */
|
|
|
|
group = NULL;
|
|
|
|
/* Determine the ancestor of the window; its group setting will override the
|
|
* normal grouping rules; see bug 328211.
|
|
*/
|
|
ancestor = meta_window_find_root_ancestor (window);
|
|
|
|
if (window->display->groups_by_leader)
|
|
{
|
|
if (ancestor != window)
|
|
group = ancestor->group;
|
|
else 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 (ancestor != window && ancestor->xgroup_leader != None)
|
|
group = meta_group_new (window->display,
|
|
ancestor->xgroup_leader);
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* meta_display_lookup_group: (skip)
|
|
* @display: a #MetaDisplay
|
|
* @group_leader: a X 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;
|
|
}
|
|
|
|
/**
|
|
* meta_group_list_windows:
|
|
* @group: A #MetaGroup
|
|
*
|
|
* Returns: (transfer container) (element-type Meta.Window): List of windows
|
|
*/
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* meta_group_property_notify: (skip)
|
|
* @group: a #MetaGroup
|
|
* @event: a X event
|
|
*
|
|
*/
|
|
gboolean
|
|
meta_group_property_notify (MetaGroup *group,
|
|
XEvent *event)
|
|
{
|
|
meta_group_reload_property (group,
|
|
event->xproperty.atom);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
int
|
|
meta_group_get_size (MetaGroup *group)
|
|
{
|
|
if (!group)
|
|
return 0;
|
|
|
|
return group->refcount;
|
|
}
|
|
|