stacking.c for the Openbox window manager
Copyright (c) 2006 Mikael Magnusson
- Copyright (c) 2003 Ben Jansens
+ 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
#include "group.h"
#include "frame.h"
#include "window.h"
+#include "debug.h"
GList *stacking_list = 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);
-
- /* 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);
-
- /* 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;
- }
-
/* 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 = g_list_previous(it)) {
- if (WINDOW_IS_CLIENT(it->data)) {
- ObClient *ch = it->data;
+ /* go from the bottom of the stacking list up. don't move any other windows
+ when lowering, we call this for each window independently */
+ if (raise) {
+ for (it = g_list_last(stacking_list); it; it = next) {
+ next = g_list_previous(it);
- /* 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);
+ 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);
}
- stacking_list = g_list_delete_link(stacking_list, it);
}
}
}
wins = g_list_append(wins, selected);
/* if selected window is transient for group then raise it above others */
- if (selected->transient_for == OB_TRAN_GROUP) {
+ if (selected->transient_for_group) {
/* if it's modal, raise it above those also */
if (selected->modal) {
wins = g_list_concat(wins, group_modals);
last = NULL;
for (it = g_list_last(stacking_list); it; it = g_list_previous(it))
{
- if (window_layer(it->data) < selected->layer)
+ if (window_layer(it->data) < selected->layer) {
+ last = it;
continue;
+ }
/* if lowering, stop at the beginning of the layer */
if (!raise)
break;
do_restack(wins, below);
g_list_free(wins);
+
+ /* lower our parents after us, so they go below us */
+ if (!raise && selected->parents) {
+ GSList *parents_copy, *sit;
+ GSList *reorder = NULL;
+
+ parents_copy = g_slist_copy(selected->parents);
+
+ /* go thru stacking list backwards so we can use g_slist_prepend */
+ for (it = g_list_last(stacking_list); it && parents_copy;
+ it = g_list_previous(it))
+ if ((sit = g_slist_find(parents_copy, it->data))) {
+ reorder = g_slist_prepend(reorder, sit->data);
+ parents_copy = g_slist_delete_link(parents_copy, sit);
+ }
+ g_assert(parents_copy == NULL);
+
+ /* call restack for each of these to lower them */
+ for (sit = reorder; sit; sit = g_slist_next(sit))
+ restack_windows(sit->data, raise);
+ }
}
void stacking_raise(ObWindow *window)
stacking_raise(win);
}
+static GList *find_highest_relative(ObClient *client)
+{
+ GList *ret = NULL;
+
+ if (client->parents) {
+ GList *it;
+ GSList *top;
+
+ /* get all top level relatives of this client */
+ top = client_search_all_top_parents_layer(client);
+
+ /* go from the top of the stacking order down */
+ for (it = stacking_list; !ret && it; it = g_list_next(it)) {
+ if (WINDOW_IS_CLIENT(it->data)) {
+ ObClient *c = it->data;
+ /* only look at windows in the same layer and that are
+ visible */
+ if (c->layer == client->layer &&
+ !c->iconic &&
+ (c->desktop == client->desktop ||
+ c->desktop == DESKTOP_ALL ||
+ client->desktop == DESKTOP_ALL))
+ {
+ GSList *sit;
+
+ /* go through each top level parent and see it this window
+ is related to them */
+ for (sit = top; !ret && sit; sit = g_slist_next(sit)) {
+ ObClient *topc = sit->data;
+
+ /* are they related ? */
+ if (topc == c || client_search_transient(topc, c))
+ ret = it;
+ }
+ }
+ }
+ }
+ }
+ return ret;
+}
+
void stacking_add_nonintrusive(ObWindow *win)
{
ObClient *client;
- ObClient *parent = NULL;
- GList *it_below = NULL;
+ GList *it_below = NULL; /* this client will be below us */
+ GList *it_above;
+ GList *wins;
if (!WINDOW_IS_CLIENT(win)) {
stacking_add(win); /* no special rules for others */
client = WINDOW_AS_CLIENT(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))
+ /* insert above its highest parent (or its highest child !) */
+ it_below = find_highest_relative(client);
+
+ if (!it_below) {
+ /* nothing to put it directly above, so try find the focused client
+ to put it underneath it */
+ if (focus_client && client != focus_client &&
+ focus_client->layer == client->layer)
+ {
+ it_below = g_list_find(stacking_list, focus_client);
+ /* this can give NULL, but it means the focused window is on the
+ bottom of the stacking order, so go to the bottom in that case,
+ below it */
+ it_below = g_list_next(it_below);
+ }
+ else {
+ /* There is no window to put this directly above, so put it at the
+ top, so you know it is there.
+
+ It used to do this only if the window was focused and lower
+ it otherwise.
+
+ We also put it at the top not the bottom to fix a bug with
+ fullscreen windows. When focusLast is off and followsMouse is
+ on, when you switch desktops, the fullscreen window loses
+ focus and goes into its lower layer. If this puts it at the
+ bottom then when you come back to the desktop, the window is
+ at the bottom and won't get focus back.
+ */
+ it_below = stacking_list;
+ }
+ }
+
+ /* 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 = it_above) {
+ /* stop when the window is not in a lower layer than the
+ window it is going under (it_above) */
+ it_above = it_below ?
+ g_list_previous(it_below) : g_list_last(stacking_list);
+ if (client->layer <= window_layer(it_above->data))
+ break;
+ }
+
+ wins = g_list_append(NULL, win);
+ do_restack(wins, it_below);
+ g_list_free(wins);
+}
+
+/*! Returns TRUE if client is occluded by the sibling. If sibling is NULL it
+ tries against all other clients.
+*/
+static gboolean stacking_occluded(ObClient *client, ObClient *sibling)
+{
+ GList *it;
+ gboolean occluded = FALSE;
+ gboolean found = FALSE;
+
+ /* no need for any looping in this case */
+ if (sibling && client->layer != sibling->layer)
+ return occluded;
+
+ for (it = stacking_list; it;
+ it = (found ? g_list_previous(it) :g_list_next(it)))
+ if (WINDOW_IS_CLIENT(it->data)) {
+ ObClient *c = it->data;
+ if (found && !c->iconic &&
+ (c->desktop == DESKTOP_ALL || client->desktop == DESKTOP_ALL ||
+ c->desktop == client->desktop) &&
+ !client_search_transient(client, c))
+ {
+ if (RECT_INTERSECTS_RECT(c->frame->area, client->frame->area))
{
- ObClient *c = sit->data;
- /* checking transient_for prevents infinate loops! */
- if (sit->data == it->data && !c->transient_for)
- parent = it->data;
+ if (sibling != NULL) {
+ if (c == sibling) {
+ occluded = TRUE;
+ break;
+ }
+ }
+ else if (c->layer == client->layer) {
+ occluded = TRUE;
+ break;
+ }
+ else if (c->layer > client->layer)
+ break; /* we past its layer */
}
}
+ else if (c == client)
+ found = TRUE;
}
- }
+ return occluded;
+}
- 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;
+/*! Returns TRUE if client occludes the sibling. If sibling is NULL it tries
+ against all other clients.
+*/
+static gboolean stacking_occludes(ObClient *client, ObClient *sibling)
+{
+ GList *it;
+ gboolean occludes = FALSE;
+ gboolean found = FALSE;
+
+ /* no need for any looping in this case */
+ if (sibling && client->layer != sibling->layer)
+ return occludes;
+
+ for (it = stacking_list; it; it = g_list_next(it))
+ if (WINDOW_IS_CLIENT(it->data)) {
+ ObClient *c = it->data;
+ if (found && !c->iconic &&
+ (c->desktop == DESKTOP_ALL || client->desktop == DESKTOP_ALL ||
+ c->desktop == client->desktop) &&
+ !client_search_transient(c, client))
+ {
+ if (RECT_INTERSECTS_RECT(c->frame->area, client->frame->area))
+ {
+ if (sibling != NULL) {
+ if (c == sibling) {
+ occludes = TRUE;
+ break;
+ }
+ }
+ else if (c->layer == client->layer) {
+ occludes = TRUE;
+ break;
+ }
+ else if (c->layer < client->layer)
+ break; /* we past its layer */
+ }
+ }
+ else if (c == client)
+ found = TRUE;
}
+ return occludes;
+}
+
+gboolean stacking_restack_request(ObClient *client, ObClient *sibling,
+ gint detail)
+{
+ gboolean ret = FALSE;
+
+ if (sibling && ((client->desktop != sibling->desktop &&
+ client->desktop != DESKTOP_ALL &&
+ sibling->desktop != DESKTOP_ALL) ||
+ sibling->iconic))
+ {
+ ob_debug("Setting restack sibling to NULL, they are not on the same "
+ "desktop or it is iconified\n");
+ sibling = NULL;
}
- if (!it_below) {
- /* out of ideas, just add it normally... */
- stacking_add(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;
+
+ switch (detail) {
+ case Below:
+ ob_debug("Restack request Below for client %s sibling %s\n",
+ client->title, sibling ? sibling->title : "(all)");
+ /* just lower it */
+ stacking_lower(CLIENT_AS_WINDOW(client));
+ ret = TRUE;
+ break;
+ case BottomIf:
+ ob_debug("Restack request BottomIf for client %s sibling "
+ "%s\n",
+ client->title, sibling ? sibling->title : "(all)");
+ /* if this client occludes sibling (or anything if NULL), then
+ lower it to the bottom */
+ if (stacking_occludes(client, sibling)) {
+ stacking_lower(CLIENT_AS_WINDOW(client));
+ ret = TRUE;
}
- 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;
+ break;
+ case Above:
+ ob_debug("Restack request Above for client %s sibling %s\n",
+ client->title, sibling ? sibling->title : "(all)");
+ stacking_raise(CLIENT_AS_WINDOW(client));
+ ret = TRUE;
+ break;
+ case TopIf:
+ ob_debug("Restack request TopIf for client %s sibling %s\n",
+ client->title, sibling ? sibling->title : "(all)");
+ if (stacking_occluded(client, sibling)) {
+ stacking_raise(CLIENT_AS_WINDOW(client));
+ ret = TRUE;
}
-
- GList *wins = g_list_append(NULL, win);
- do_restack(wins, it_below);
- g_list_free(wins);
+ break;
+ case Opposite:
+ ob_debug("Restack request Opposite for client %s sibling "
+ "%s\n",
+ client->title, sibling ? sibling->title : "(all)");
+ if (stacking_occluded(client, sibling)) {
+ stacking_raise(CLIENT_AS_WINDOW(client));
+ ret = TRUE;
+ }
+ else if (stacking_occludes(client, sibling)) {
+ stacking_lower(CLIENT_AS_WINDOW(client));
+ ret = TRUE;
+ }
+ break;
}
+ return ret;
}
projects / mikachu / openbox.git / blobdiff