openbox/focus.c (raw)
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#include "event.h" #include "openbox.h" #include "client.h" #include "config.h" #include "frame.h" #include "screen.h" #include "group.h" #include "prop.h" #include "dispatch.h" #include "focus.h" #include "parse.h" #include <X11/Xlib.h> #include <glib.h> Client *focus_client = NULL; GList **focus_order = NULL; /* these lists are created when screen_startup sets the number of desktops */ Window focus_backup = None; static gboolean noreorder = 0; void focus_startup() { /* create the window which gets focus when no clients get it. Have to make it override-redirect so we don't try manage it, since it is mapped. */ XSetWindowAttributes attrib; focus_client = NULL; attrib.override_redirect = TRUE; focus_backup = XCreateWindow(ob_display, ob_root, -100, -100, 1, 1, 0, CopyFromParent, InputOutput, CopyFromParent, CWOverrideRedirect, &attrib); XMapRaised(ob_display, focus_backup); /* start with nothing focused */ focus_set_client(NULL); } void focus_shutdown() { guint i; for (i = 0; i < screen_num_desktops; ++i) g_list_free(focus_order[i]); g_free(focus_order); focus_order = NULL; XDestroyWindow(ob_display, focus_backup); /* reset focus to root */ XSetInputFocus(ob_display, PointerRoot, RevertToPointerRoot, event_lasttime); } static void push_to_top(Client *client) { guint desktop; desktop = client->desktop; if (desktop == DESKTOP_ALL) desktop = screen_desktop; focus_order[desktop] = g_list_remove(focus_order[desktop], client); focus_order[desktop] = g_list_prepend(focus_order[desktop], client); } void focus_set_client(Client *client) { Window active; Client *old; /* uninstall the old colormap, and install the new one */ screen_install_colormap(focus_client, FALSE); screen_install_colormap(client, TRUE); if (client == NULL) { /* when nothing will be focused, send focus to the backup target */ XSetInputFocus(ob_display, focus_backup, RevertToPointerRoot, event_lasttime); XSync(ob_display, FALSE); } old = focus_client; focus_client = client; /* move to the top of the list */ if (noreorder) --noreorder; else if (client != NULL) push_to_top(client); /* set the NET_ACTIVE_WINDOW hint */ active = client ? client->window : None; PROP_SET32(ob_root, net_active_window, window, active); if (focus_client != NULL) dispatch_client(Event_Client_Focus, focus_client, 0, 0); if (old != NULL) dispatch_client(Event_Client_Unfocus, old, 0, 0); } static gboolean focus_under_pointer() { Window w; int i, x, y; guint u; GList *it; if (XQueryPointer(ob_display, ob_root, &w, &w, &x, &y, &i, &i, &u)) { for (it = stacking_list; it != NULL; it = it->next) { Client *c = it->data; if (c->desktop == screen_desktop && RECT_CONTAINS(c->frame->area, x, y)) break; } if (it != NULL) return client_normal(it->data) && client_focus(it->data); } return FALSE; } void focus_fallback(FallbackType type) { GList *it; Client *old = NULL; old = focus_client; /* unfocus any focused clients.. they can be focused by Pointer events and such, and then when I try focus them, I won't get a FocusIn event at all for them. */ focus_set_client(NULL); if (!(type == Fallback_Desktop ? config_focus_last_on_desktop : config_focus_last)) { if (config_focus_follow) focus_under_pointer(); return; } if (type == Fallback_Unfocusing && old && old->transient_for) { if (old->transient_for == TRAN_GROUP) { for (it = focus_order[screen_desktop]; it != NULL; it = it->next) { GSList *sit; for (sit = old->group->members; sit; sit = sit->next) if (sit->data == it->data && client_focus(sit->data)) return; } } else { if (client_normal(old->transient_for)) if (client_focus(old->transient_for)) return; } } for (it = focus_order[screen_desktop]; it != NULL; it = it->next) if (type != Fallback_Unfocusing || it->data != old) if (client_normal(it->data) && client_focus(it->data)) return; /* nothing to focus */ focus_set_client(NULL); } Client *focus_cycle(gboolean forward, gboolean linear, gboolean done, gboolean cancel) { static Client *first = NULL; static Client *t = NULL; static GList *order = NULL; GList *it, *start, *list; Client *ft; if (cancel) { if (first) client_focus(first); goto done_cycle; } else if (done) { if (focus_client) { push_to_top(focus_client); /* move to top of focus_order */ stacking_raise(focus_client); } goto done_cycle; } if (!first) first = focus_client; if (linear) list = client_list; else list = focus_order[screen_desktop]; start = it = g_list_find(list, focus_client); if (!start) /* switched desktops or something? */ start = it = forward ? g_list_last(list) : g_list_first(list); if (!start) goto done_cycle; do { if (forward) { it = it->next; if (it == NULL) it = list; } else { it = it->prev; if (it == NULL) it = g_list_last(list); } ft = client_focus_target(it->data); if (ft == it->data && focus_client != ft && client_normal(ft) && client_focus(ft)) { noreorder++; /* avoid reordering the focus_order */ return ft; } } while (it != start); return NULL; done_cycle: t = NULL; first = NULL; g_list_free(order); order = NULL; return NULL; } |