support for _NET_WM_USER_TIME_WINDOW round 2 ! yay abstraction

[chaz/openbox] / openbox / propwin.c

diff --git a/openbox/propwin.c b/openbox/propwin.c
new file mode 100644 (file)
index 0000000..0bf74b2
--- /dev/null
+++ b/openbox/propwin.c
@@ -0,0 +1,121 @@
+/* -*- 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"
+
+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, struct _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);
+
+    /* 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, struct _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;
+}