+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ stacking.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 "openbox.h"
#include "prop.h"
+#include "screen.h"
#include "focus.h"
#include "client.h"
#include "group.h"
#include "frame.h"
-#include <glib.h>
+#include "window.h"
GList *stacking_list = NULL;
-static Window top_window = None;
-
-void stacking_startup()
-{
- XSetWindowAttributes attrib;
- attrib.override_redirect = TRUE;
- top_window = XCreateWindow(ob_display, ob_root,
- -100, -100, 1, 1, 0,
- CopyFromParent, InputOutput, CopyFromParent,
- CWOverrideRedirect, &attrib);
- XMapWindow(ob_display, top_window);
-}
-
-void stacking_shutdown()
-{
- XDestroyWindow(ob_display, top_window);
-}
-
void stacking_set_list()
{
- Window *windows, *win_it;
+ Window *windows = NULL;
GList *it;
- guint size = g_list_length(stacking_list);
+ guint i = 0;
/* on shutdown, don't update the properties, so that we can read it back
in on startup and re-stack the windows as they were before we shut down
*/
- if (ob_state == State_Exiting) return;
+ if (ob_state() == OB_STATE_EXITING) return;
/* create an array of the window ids (from bottom to top,
reverse order!) */
- if (size > 0) {
- windows = g_new(Window, size);
- win_it = windows;
- for (it = g_list_last(stacking_list); it != NULL;
- it = it->prev, ++win_it)
- *win_it = ((Client*)it->data)->window;
- } else
- windows = NULL;
-
- PROP_SETA32(ob_root, net_client_list_stacking, window,
- (guint32*)windows, size);
-
- if (windows)
- g_free(windows);
+ if (stacking_list) {
+ windows = g_new(Window, g_list_length(stacking_list));
+ for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
+ if (WINDOW_IS_CLIENT(it->data))
+ windows[i++] = WINDOW_AS_CLIENT(it->data)->window;
+ }
+ }
+
+ PROP_SETA32(RootWindow(ob_display, ob_screen),
+ net_client_list_stacking, window, (gulong*)windows, i);
+
+ g_free(windows);
}
-static GList *find_lowest_transient(Client *c)
+static void do_restack(GList *wins, GList *before)
{
GList *it;
- GSList *sit;
+ Window *win;
+ gint i;
+
+#ifdef DEBUG
+ GList *next;
+ /* pls only restack stuff in the same layer at a time */
+ for (it = wins; it; it = next) {
+ next = g_list_next(it);
+ if (!next) break;
+ g_assert (window_layer(it->data) == window_layer(next->data));
+ }
+ if (before)
+ g_assert(window_layer(it->data) >= window_layer(before->data));
+#endif
+
+ win = g_new(Window, g_list_length(wins) + 1);
+
+ if (before == stacking_list)
+ win[0] = screen_support_win;
+ else if (!before)
+ win[0] = window_top(g_list_last(stacking_list)->data);
+ else
+ win[0] = window_top(g_list_previous(before)->data);
+
+ for (i = 1, it = wins; it; ++i, it = g_list_next(it)) {
+ win[i] = window_top(it->data);
+ g_assert(win[i] != None); /* better not call stacking shit before
+ setting your top level window value */
+ stacking_list = g_list_insert_before(stacking_list, before, it->data);
+ }
+
+#ifdef DEBUG
+ /* some debug checking of the stacking list's order */
+ for (it = stacking_list; ; it = next) {
+ next = g_list_next(it);
+ if (!next) break;
+ g_assert(window_layer(it->data) >= window_layer(next->data));
+ }
+#endif
+
+ XRestackWindows(ob_display, win, i);
+ g_free(win);
- for (it = g_list_last(stacking_list); it; it = it->prev)
- for (sit = c->transients; sit; sit = sit->next)
- if (it->data == sit->data) /* found a transient */
- return it;
- return NULL;
+ stacking_set_list();
}
-static void raise_recursive(Client *client)
+static void do_raise(GList *wins)
{
- Window wins[2]; /* only ever restack 2 windows. */
GList *it;
- GSList *sit;
-
- g_assert(stacking_list != NULL); /* this would be bad */
-
- /* remove the client before looking so we can't run into ourselves and our
- transients can't either. */
- stacking_list = g_list_remove(stacking_list, client);
+ GList *layer[OB_NUM_STACKING_LAYERS] = {NULL};
+ gint i;
- /* raise transients first */
- for (sit = client->transients; sit; sit = sit->next)
- raise_recursive(sit->data);
+ for (it = wins; it; it = g_list_next(it)) {
+ ObStackingLayer l;
- /* find 'it' where it is the positiion in the stacking order where
- 'client' will be inserted *before* */
+ l = window_layer(it->data);
+ layer[l] = g_list_append(layer[l], it->data);
+ }
- it = find_lowest_transient(client);
- if (it)
- it = it->next;
- else {
- /* the stacking list is from highest to lowest */
- for (it = stacking_list; it; it = it->next) {
- if (client->layer >= ((Client*)it->data)->layer)
- break;
+ it = stacking_list;
+ for (i = OB_NUM_STACKING_LAYERS - 1; i >= 0; --i) {
+ if (layer[i]) {
+ for (; it; it = g_list_next(it)) {
+ /* look for the top of the layer */
+ if (window_layer(it->data) <= (ObStackingLayer) i)
+ break;
+ }
+ do_restack(layer[i], it);
+ g_list_free(layer[i]);
}
}
+}
- /*
- if our new position is the top, we want to stack under the focus_backup.
- otherwise, we want to stack under the previous window in the stack.
- */
- if (it == stacking_list)
- wins[0] = focus_backup;
- else if (it != NULL)
- wins[0] = ((Client*)it->prev->data)->frame->window;
- else
- wins[0] = ((Client*)g_list_last(stacking_list)->data)->frame->window;
- wins[1] = client->frame->window;
+static void do_lower(GList *wins)
+{
+ GList *it;
+ GList *layer[OB_NUM_STACKING_LAYERS] = {NULL};
+ gint i;
- stacking_list = g_list_insert_before(stacking_list, it, client);
+ for (it = wins; it; it = g_list_next(it)) {
+ ObStackingLayer l;
- XRestackWindows(ob_display, wins, 2);
+ l = window_layer(it->data);
+ layer[l] = g_list_append(layer[l], it->data);
+ }
+
+ it = stacking_list;
+ for (i = OB_NUM_STACKING_LAYERS - 1; i >= 0; --i) {
+ if (layer[i]) {
+ for (; it; it = g_list_next(it)) {
+ /* look for the top of the next layer down */
+ if (window_layer(it->data) < (ObStackingLayer) i)
+ break;
+ }
+ do_restack(layer[i], it);
+ g_list_free(layer[i]);
+ }
+ }
}
-void stacking_raise(Client *client)
+static void restack_windows(ObClient *selected, gboolean raise)
{
- g_assert(stacking_list != NULL); /* this would be bad */
-
- /* move up the transient chain as far as possible first */
- while (client->transient_for) {
- if (client->transient_for != TRAN_GROUP) {
- client = client->transient_for;
- } else {
- GSList *it;
+ GList *it, *last, *below, *above, *next;
+ GList *wins = NULL;
+
+ GList *group_modals = NULL;
+ GList *group_trans = NULL;
+ GList *modals = NULL;
+ GList *trans = NULL;
+
+ if (!raise && selected->transient_for) {
+ GSList *top, *top_it;
+ GSList *top_reorder = NULL;
+
+ /* if it's a transient lowering, lower its parents so that we can lower
+ this window, or it won't move */
+ top = client_search_all_top_parents(selected);
+
+ /* that is, if it has any parents */
+ if (!(top->data == selected && top->next == NULL)) {
+ /* go thru stacking list backwards so we can use g_slist_prepend */
+ for (it = g_list_last(stacking_list); it && top;
+ it = g_list_previous(it))
+ if ((top_it = g_slist_find(top, it->data))) {
+ top_reorder = g_slist_prepend(top_reorder, top_it->data);
+ top = g_slist_delete_link(top, top_it);
+ }
+ g_assert(top == NULL);
- /* the check for TRAN_GROUP is to prevent an infinate loop with
- 2 transients of the same group at the head of the group's
- members list */
- for (it = client->group->members; it; it = it->next) {
- Client *c = it->data;
+ /* call restack for each of these to lower them */
+ for (top_it = top_reorder; top_it; top_it = g_slist_next(top_it))
+ restack_windows(top_it->data, raise);
+ return;
+ }
+ }
- if (c != client && c->transient_for != TRAN_GROUP) {
- client = it->data;
- break;
+ /* remove first so we can't run into ourself */
+ it = g_list_find(stacking_list, selected);
+ g_assert(it);
+ stacking_list = g_list_delete_link(stacking_list, it);
+
+ /* go from the bottom of the stacking list up */
+ for (it = g_list_last(stacking_list); it; it = next) {
+ next = g_list_previous(it);
+
+ if (WINDOW_IS_CLIENT(it->data)) {
+ ObClient *ch = it->data;
+
+ /* only move windows in the same stacking layer */
+ if (ch->layer == selected->layer &&
+ client_search_transient(selected, ch))
+ {
+ if (client_is_direct_child(selected, ch)) {
+ if (ch->modal)
+ modals = g_list_prepend(modals, ch);
+ else
+ trans = g_list_prepend(trans, ch);
}
+ else {
+ if (ch->modal)
+ group_modals = g_list_prepend(group_modals, ch);
+ else
+ group_trans = g_list_prepend(group_trans, ch);
+ }
+ stacking_list = g_list_delete_link(stacking_list, it);
}
- if (it == NULL) break;
}
}
- raise_recursive(client);
+ /* put transients of the selected window right above it */
+ wins = g_list_concat(modals, trans);
+ wins = g_list_append(wins, selected);
- stacking_set_list();
-}
+ /* if selected window is transient for group then raise it above others */
+ if (selected->transient_for == OB_TRAN_GROUP) {
+ /* if it's modal, raise it above those also */
+ if (selected->modal) {
+ wins = g_list_concat(wins, group_modals);
+ group_modals = NULL;
+ }
+ wins = g_list_concat(wins, group_trans);
+ group_trans = NULL;
+ }
-static void lower_recursive(Client *client, Client *above)
-{
- Window wins[2]; /* only ever restack 2 windows. */
- GList *it;
- GSList *sit;
+ /* find where to put the selected window, start from bottom of list,
+ this is the window below everything we are re-adding to the list */
+ last = NULL;
+ for (it = g_list_last(stacking_list); it; it = g_list_previous(it))
+ {
+ if (window_layer(it->data) < selected->layer) {
+ last = it;
+ continue;
+ }
+ /* if lowering, stop at the beginning of the layer */
+ if (!raise)
+ break;
+ /* if raising, stop at the end of the layer */
+ if (window_layer(it->data) > selected->layer)
+ break;
- /* find 'it' where 'it' is the position in the stacking_list where the
- 'client' will be placed *after* */
+ last = it;
+ }
+
+ /* save this position in the stacking list */
+ below = last;
- for (it = g_list_last(stacking_list); it != stacking_list; it = it->prev)
- if (client->layer <= ((Client*)it->data)->layer && it->data != above)
+ /* find where to put the group transients, start from the top of list */
+ for (it = stacking_list; it; it = g_list_next(it)) {
+ /* skip past higher layers */
+ if (window_layer(it->data) > selected->layer)
+ continue;
+ /* if we reach the end of the layer (how?) then don't go further */
+ if (window_layer(it->data) < selected->layer)
break;
+ /* stop when we reach the first window in the group */
+ if (WINDOW_IS_CLIENT(it->data)) {
+ ObClient *c = it->data;
+ if (c->group == selected->group)
+ break;
+ }
+ /* if we don't hit any other group members, stop here because this
+ is where we are putting the selected window (and its children) */
+ if (it == below)
+ break;
+ }
- if (it->data != client) { /* not already the bottom */
- wins[0] = ((Client*)it->data)->frame->window;
- wins[1] = client->frame->window;
+ /* save this position, this is the top of the group of windows between the
+ group transient ones we're restacking and the others up above that we're
+ restacking
- stacking_list = g_list_remove(stacking_list, client);
- stacking_list = g_list_insert_before(stacking_list, it->next, client);
- XRestackWindows(ob_display, wins, 2);
+ we actually want to save 1 position _above_ that, for for loops to work
+ nicely, so move back one position in the list while saving it
+ */
+ above = it ? g_list_previous(it) : g_list_last(stacking_list);
+
+ /* put the windows inside the gap to the other windows we're stacking
+ into the restacking list, go from the bottom up so that we can use
+ g_list_prepend */
+ if (below) it = g_list_previous(below);
+ else it = g_list_last(stacking_list);
+ for (; it != above; it = next) {
+ next = g_list_previous(it);
+ wins = g_list_prepend(wins, it->data);
+ stacking_list = g_list_delete_link(stacking_list, it);
}
- for (sit = client->transients; sit; sit = sit->next)
- lower_recursive(sit->data, client);
+ /* group transients go above the rest of the stuff acquired to now */
+ wins = g_list_concat(group_trans, wins);
+ /* group modals go on the very top */
+ wins = g_list_concat(group_modals, wins);
+
+ do_restack(wins, below);
+ g_list_free(wins);
}
-void stacking_lower(Client *client)
+void stacking_raise(ObWindow *window)
{
- g_assert(stacking_list != NULL); /* this would be bad */
+ if (WINDOW_IS_CLIENT(window)) {
+ ObClient *selected;
+ selected = WINDOW_AS_CLIENT(window);
+ restack_windows(selected, TRUE);
+ } else {
+ GList *wins;
+ wins = g_list_append(NULL, window);
+ stacking_list = g_list_remove(stacking_list, window);
+ do_raise(wins);
+ g_list_free(wins);
+ }
+}
- /* move up the transient chain as far as possible first */
- while (client->transient_for) {
- if (client->transient_for != TRAN_GROUP) {
- client = client->transient_for;
- } else {
- GSList *it;
+void stacking_lower(ObWindow *window)
+{
+ if (WINDOW_IS_CLIENT(window)) {
+ ObClient *selected;
+ selected = WINDOW_AS_CLIENT(window);
+ restack_windows(selected, FALSE);
+ } else {
+ GList *wins;
+ wins = g_list_append(NULL, window);
+ stacking_list = g_list_remove(stacking_list, window);
+ do_lower(wins);
+ g_list_free(wins);
+ }
+}
- /* the check for TRAN_GROUP is to prevent an infinate loop with
- 2 transients of the same group at the head of the group's
- members list */
- for (it = client->group->members; it; it = it->next) {
- Client *c = it->data;
+void stacking_below(ObWindow *window, ObWindow *below)
+{
+ GList *wins, *before;
- if (c != client && c->transient_for != TRAN_GROUP) {
- client = it->data;
- break;
- }
- }
- if (it == NULL) break;
- }
- }
+ if (window_layer(window) != window_layer(below))
+ return;
+
+ wins = g_list_append(NULL, window);
+ stacking_list = g_list_remove(stacking_list, window);
+ before = g_list_next(g_list_find(stacking_list, below));
+ do_restack(wins, before);
+ g_list_free(wins);
+}
- lower_recursive(client, NULL);
+void stacking_add(ObWindow *win)
+{
+ g_assert(screen_support_win != None); /* make sure I dont break this in the
+ future */
- stacking_set_list();
+ stacking_list = g_list_append(stacking_list, win);
+ stacking_raise(win);
}
-void stacking_raise_internal(Window win)
+void stacking_add_nonintrusive(ObWindow *win)
{
- Window wins[2]; /* only ever restack 2 windows. */
+ ObClient *client;
+ ObClient *parent = NULL;
+ GList *it_below = NULL;
+
+ if (!WINDOW_IS_CLIENT(win)) {
+ stacking_add(win); /* no special rules for others */
+ return;
+ }
+
+ client = WINDOW_AS_CLIENT(win);
- wins[0] = top_window;
- wins[1] = win;
+ /* insert above its highest parent */
+ if (client->transient_for) {
+ if (client->transient_for != OB_TRAN_GROUP) {
+ parent = client->transient_for;
+ } else {
+ GSList *sit;
+ GList *it;
+
+ if (client->group)
+ for (it = stacking_list; !parent && it; it = g_list_next(it)) {
+ if ((sit = g_slist_find(client->group->members, it->data)))
+ for (sit = client->group->members; !parent && sit;
+ sit = g_slist_next(sit))
+ {
+ ObClient *c = sit->data;
+ /* checking transient_for prevents infinate loops!
+ */
+ if (sit->data == it->data && !c->transient_for)
+ parent = it->data;
+ }
+ }
+ }
+ }
+
+ if (!(it_below = g_list_find(stacking_list, parent))) {
+ /* no parent to put above, try find the focused client to go
+ under */
+ if (focus_client && focus_client->layer == client->layer) {
+ if ((it_below = g_list_find(stacking_list, focus_client)))
+ it_below = it_below->next;
+ }
+ }
+ if (!it_below) {
+ /* there is no window to put this directly above, so put it at the
+ bottom */
+ stacking_list = g_list_prepend(stacking_list, win);
+ stacking_lower(win);
+ } else {
+ /* make sure it's not in the wrong layer though ! */
+ for (; it_below; it_below = g_list_next(it_below))
+ {
+ /* stop when the window is not in a higher layer than the window
+ it is going above (it_below) */
+ if (client->layer >= window_layer(it_below->data))
+ break;
+ }
+ for (; it_below != stacking_list;
+ it_below = g_list_previous(it_below))
+ {
+ /* stop when the window is not in a lower layer than the
+ window it is going under (it_above) */
+ GList *it_above = g_list_previous(it_below);
+ if (client->layer <= window_layer(it_above->data))
+ break;
+ }
- XRestackWindows(ob_display, wins, 2);
+ GList *wins = g_list_append(NULL, win);
+ do_restack(wins, it_below);
+ g_list_free(wins);
+ }
}
projects / chaz / openbox / blobdiff