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 g_assert(win[i] != None); /* better not call stacking shit before
65 setting your top level window value */
66 stacking_list = g_list_insert_before(stacking_list, before, it->data);
69 /* XXX some debug checking of the stacking list's order */
70 for (it = stacking_list; ; it = next) {
71 next = g_list_next(it);
73 g_assert(window_layer(it->data) >= window_layer(next->data));
76 XRestackWindows(ob_display, win, i);
82 static void do_raise(GList *wins)
85 GList *layer[NUM_STACKLAYER] = {NULL};
88 for (it = wins; it; it = g_list_next(it)) {
91 l = window_layer(it->data);
92 layer[l] = g_list_append(layer[l], it->data);
96 for (i = NUM_STACKLAYER - 1; i >= 0; --i) {
98 for (; it; it = g_list_next(it)) {
99 /* look for the top of the layer */
100 if (window_layer(it->data) <= (StackLayer) i)
103 do_restack(layer[i], it);
104 g_list_free(layer[i]);
109 static void do_lower(GList *wins)
112 GList *layer[NUM_STACKLAYER] = {NULL};
115 for (it = wins; it; it = g_list_next(it)) {
118 l = window_layer(it->data);
119 layer[l] = g_list_append(layer[l], it->data);
123 for (i = NUM_STACKLAYER - 1; i >= 0; --i) {
125 for (; it; it = g_list_next(it)) {
126 /* look for the top of the next layer down */
127 if (window_layer(it->data) < (StackLayer) i)
130 do_restack(layer[i], it);
131 g_list_free(layer[i]);
136 static GList *pick_windows(ObWindow *win)
144 if (!WINDOW_IS_CLIENT(win)) {
145 ret = g_list_append(ret, win);
146 stacking_list = g_list_remove(stacking_list, win);
150 c = WINDOW_AS_CLIENT(win);
152 /* remove first so we can't run into ourself */
153 stacking_list = g_list_remove(stacking_list, win);
155 /* add transient children in their stacking order */
157 n = g_slist_length(c->transients);
158 for (it = stacking_list; i < n && it; it = next) {
159 next = g_list_next(it);
160 if ((sit = g_slist_find(c->transients, it->data))) {
162 ret = g_list_concat(ret, pick_windows(sit->data));
168 ret = g_list_append(ret, win);
173 static GList *pick_group_windows(ObWindow *win)
181 if (!WINDOW_IS_CLIENT(win))
184 c = WINDOW_AS_CLIENT(win);
186 /* add group members in their stacking order */
189 n = g_slist_length(c->group->members) - 1;
190 for (it = stacking_list; i < n && it; it = next) {
191 next = g_list_next(it);
192 if ((sit = g_slist_find(c->group->members, it->data))) {
194 ret = g_list_concat(ret, pick_windows(sit->data));
202 static ObWindow *top_transient(ObWindow *window)
206 if (!WINDOW_IS_CLIENT(window))
209 client = WINDOW_AS_CLIENT(window);
211 /* move up the transient chain as far as possible */
212 if (client->transient_for) {
213 if (client->transient_for != TRAN_GROUP) {
214 return top_transient(CLIENT_AS_WINDOW(client->transient_for));
218 for (it = client->group->members; it; it = it->next) {
219 Client *c = it->data;
221 /* checking transient_for prevents infinate loops! */
222 if (c != client && !c->transient_for)
233 void stacking_raise(ObWindow *window)
237 window = top_transient(window);
238 wins = pick_windows(window);
239 wins = g_list_concat(wins, pick_group_windows(window));
244 void stacking_lower(ObWindow *window)
248 window = top_transient(window);
249 wins = pick_windows(window);
250 wins = g_list_concat(pick_group_windows(window), wins);
255 void stacking_add(ObWindow *win)
260 g_assert(focus_backup != None); /* make sure I dont break this in the
263 l = window_layer(win);
264 wins = g_list_append(NULL, win); /* list of 1 element */
266 stacking_list = g_list_append(stacking_list, win);
270 void stacking_add_nonintrusive(ObWindow *win)
273 Client *parent = NULL;
274 GList *it_before = NULL;
276 if (!WINDOW_IS_CLIENT(win)) {
277 stacking_add(win); /* no special rules for others */
281 client = WINDOW_AS_CLIENT(win);
283 /* insert above its highest parent */
284 if (client->transient_for) {
285 if (client->transient_for != TRAN_GROUP) {
286 parent = client->transient_for;
292 for (it = stacking_list; !parent && it; it = it->next) {
293 if ((sit = g_slist_find(client->group->members, it->data)))
294 for (sit = client->group->members; !parent && sit;
296 Client *c = sit->data;
297 /* checking transient_for prevents infinate loops! */
298 if (sit->data == it->data && !c->transient_for)
305 if (!(it_before = g_list_find(stacking_list, parent))) {
306 /* no parent to put above, try find the focused client to go
308 if (focus_client && focus_client->layer == client->layer) {
309 if ((it_before = g_list_find(stacking_list, focus_client)))
310 it_before = it_before->next;
314 /* out of ideas, just add it normally... */
317 GList *wins = g_list_append(NULL, win);
318 do_restack(wins, it_before);