openbox/openbox/propwin.c
2007-05-09 18:01:46 +00:00

127 lines
3.6 KiB
C

/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
propwin.c for the Openbox window manager
Copyright (c) 2006 Mikael Magnusson
Copyright (c) 2003-2007 Dana Jansens
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.
See the COPYING file for a copy of the GNU General Public License.
*/
#include "propwin.h"
#include "openbox.h"
#include "client.h"
#include "debug.h"
typedef struct _ObPropWin ObPropWin;
typedef struct _ObPropWinData ObPropWinData;
struct _ObPropWinData
{
GSList *clients;
};
struct _ObPropWin
{
Window win;
ObPropWinData data[OB_NUM_PROPWIN_TYPES];
};
/*! A hash table that maps a window to an ObPropWin */
static GHashTable *propwin_map;
static guint window_hash(Window *w) { return *w; }
static gboolean window_comp(Window *w1, Window *w2) { return *w1 == *w2; }
void propwin_startup(gboolean reconfig)
{
if (!reconfig)
propwin_map = g_hash_table_new_full((GHashFunc)window_hash,
(GEqualFunc)window_comp,
NULL,
g_free);
}
void propwin_shutdown(gboolean reconfig)
{
if (!reconfig)
g_hash_table_destroy(propwin_map);
else
g_assert(g_hash_table_size(propwin_map) == 0);
}
void propwin_add(Window win, ObPropWinType type, ObClient *client)
{
ObPropWin *p;
if (!win) return;
g_assert(client);
g_assert(type < OB_NUM_PROPWIN_TYPES);
p = g_hash_table_lookup(propwin_map, &win);
if (!p) {
p = g_new0(ObPropWin, 1);
p->win = win;
g_hash_table_insert(propwin_map, &p->win, p);
/* get property changes on this window */
XSelectInput(ob_display, win, PropertyChangeMask);
} else
g_assert(g_slist_find(p->data[type].clients, client) == NULL);
if (p->data[type].clients != NULL)
ob_debug("Client %s is using a property window 0x%x that is already "
"in use\n", client->title, win);
/* add it to the clients list */
p->data[type].clients = g_slist_prepend(p->data[type].clients, client);
}
void propwin_remove(Window win, ObPropWinType type, ObClient *client)
{
ObPropWin *p;
if (!win) return;
p = g_hash_table_lookup(propwin_map, &win);
g_assert(p);
/* remove it to the clients list */
g_assert(g_slist_find(p->data[type].clients, client) != NULL);
p->data[type].clients = g_slist_remove(p->data[type].clients, client);
/* no more clients left for this type */
if (p->data[type].clients == NULL) {
guint i;
gboolean none = TRUE;
for (i = 0; i < OB_NUM_PROPWIN_TYPES; ++i)
if (p->data[i].clients != NULL)
none = FALSE; /* another type still has a client for this
window */
if (none) {
/* don't get events for this window any more */
XSelectInput(ob_display, win, NoEventMask);
g_hash_table_remove(propwin_map, &win);
}
}
}
GSList* propwin_get_clients(Window win, ObPropWinType type)
{
ObPropWin *p = g_hash_table_lookup(propwin_map, &win);
if (p)
return p->data[type].clients;
else
return NULL;
}