10 GList *stacking_list = NULL;
12 void stacking_set_list()
14 Window *windows = NULL;
18 /* on shutdown, don't update the properties, so that we can read it back
19 in on startup and re-stack the windows as they were before we shut down
21 if (ob_state == State_Exiting) return;
23 /* create an array of the window ids (from bottom to top,
26 windows = g_new(Window, g_list_length(stacking_list));
27 for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
28 if (WINDOW_IS_CLIENT(it->data))
29 windows[i++] = WINDOW_AS_CLIENT(it->data)->window;
33 PROP_SETA32(ob_root, net_client_list_stacking, window,
34 (guint32*)windows, i);
39 static void do_restack(GList *wins, GList *before)
45 /* pls only restack stuff in the same layer at a time */
46 for (it = wins; it; it = next) {
47 next = g_list_next(it);
49 g_assert (window_layer(it->data) == window_layer(next->data));
53 win = g_new(Window, g_list_length(wins) + 1);
55 if (before == stacking_list)
56 win[0] = focus_backup;
58 win[0] = window_top(g_list_last(stacking_list)->data);
60 win[0] = window_top(g_list_previous(before)->data);
62 for (i = 1, it = wins; it; ++i, it = g_list_next(it)) {
63 win[i] = window_top(it->data);
64 stacking_list = g_list_insert_before(stacking_list, before, it->data);
67 /* XXX some debug checking of the stacking list's order */
68 for (it = stacking_list; ; it = next) {
69 next = g_list_next(it);
71 g_assert(window_layer(it->data) >= window_layer(next->data));
74 XRestackWindows(ob_display, win, i);
80 static void raise(GList *wins)
83 GList *layer[NUM_STACKLAYER] = {NULL};
86 for (it = wins; it; it = g_list_next(it)) {
89 l = window_layer(it->data);
90 layer[l] = g_list_append(layer[l], it->data);
94 for (i = NUM_STACKLAYER - 1; i >= 0; --i) {
96 for (; it; it = g_list_next(it)) {
97 /* look for the top of the layer */
98 if (window_layer(it->data) <= (StackLayer) i)
101 do_restack(layer[i], it);
102 g_list_free(layer[i]);
107 static void lower(GList *wins)
110 GList *layer[NUM_STACKLAYER] = {NULL};
113 for (it = wins; it; it = g_list_next(it)) {
116 l = window_layer(it->data);
117 layer[l] = g_list_append(layer[l], it->data);
121 for (i = NUM_STACKLAYER - 1; i >= 0; --i) {
123 for (; it; it = g_list_next(it)) {
124 /* look for the top of the next layer down */
125 if (window_layer(it->data) < (StackLayer) i)
128 do_restack(layer[i], it);
129 g_list_free(layer[i]);
134 static GList *pick_windows(ObWindow *win)
142 if (!WINDOW_IS_CLIENT(win)) {
143 ret = g_list_append(ret, win);
144 stacking_list = g_list_remove(stacking_list, win);
148 c = WINDOW_AS_CLIENT(win);
150 /* remove first so we can't run into ourself */
151 stacking_list = g_list_remove(stacking_list, win);
153 /* add transient children in their stacking order */
155 n = g_slist_length(c->transients);
156 for (it = stacking_list; i < n && it; it = next) {
157 next = g_list_next(it);
158 if ((sit = g_slist_find(c->transients, it->data))) {
160 ret = g_list_concat(ret, pick_windows(sit->data));
166 ret = g_list_append(ret, win);
171 static GList *pick_group_windows(ObWindow *win)
179 if (!WINDOW_IS_CLIENT(win))
182 c = WINDOW_AS_CLIENT(win);
184 /* add group members in their stacking order */
187 n = g_slist_length(c->group->members) - 1;
188 for (it = stacking_list; i < n && it; it = next) {
189 next = g_list_next(it);
190 if ((sit = g_slist_find(c->group->members, it->data))) {
192 ret = g_list_concat(ret, pick_windows(sit->data));
200 static ObWindow *top_transient(ObWindow *window)
204 if (!WINDOW_IS_CLIENT(window))
207 client = WINDOW_AS_CLIENT(window);
209 /* move up the transient chain as far as possible */
210 if (client->transient_for) {
211 if (client->transient_for != TRAN_GROUP) {
212 return top_transient(CLIENT_AS_WINDOW(client->transient_for));
216 for (it = client->group->members; it; it = it->next) {
217 Client *c = it->data;
219 /* checking transient_for prevents infinate loops! */
220 if (c != client && !c->transient_for)
231 void stacking_raise(ObWindow *window)
235 window = top_transient(window);
236 wins = pick_windows(window);
237 wins = g_list_concat(wins, pick_group_windows(window));
242 void stacking_lower(ObWindow *window)
246 window = top_transient(window);
247 wins = pick_windows(window);
248 wins = g_list_concat(pick_group_windows(window), wins);
253 void stacking_add(ObWindow *win)
258 l = window_layer(win);
259 wins = g_list_append(NULL, win); /* list of 1 element */
261 stacking_list = g_list_append(stacking_list, win);
265 void stacking_add_nonintrusive(ObWindow *win)
268 Client *parent = NULL;
269 GList *it_before = NULL;
271 if (!WINDOW_IS_CLIENT(win)) {
272 stacking_add(win); /* no special rules for others */
276 client = WINDOW_AS_CLIENT(win);
278 /* insert above its highest parent */
279 if (client->transient_for) {
280 if (client->transient_for != TRAN_GROUP) {
281 parent = client->transient_for;
287 for (it = stacking_list; !parent && it; it = it->next) {
288 if ((sit = g_slist_find(client->group->members, it->data)))
289 for (sit = client->group->members; !parent && sit;
291 Client *c = sit->data;
292 /* checking transient_for prevents infinate loops! */
293 if (sit->data == it->data && !c->transient_for)
300 if (!(it_before = g_list_find(stacking_list, parent))) {
301 /* no parent to put above, try find the focused client to go
303 if (focus_client && focus_client->layer == client->layer) {
304 if ((it_before = g_list_find(stacking_list, focus_client)))
305 it_before = it_before->next;
309 /* out of ideas, just add it normally... */
312 GList *wins = g_list_append(NULL, win);
313 do_restack(wins, it_before);