openbox/focus.c (raw)
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#include "event.h" #include "config.h" #include "openbox.h" #include "client.h" #include "frame.h" #include "screen.h" #include "prop.h" #include "dispatch.h" #include "focus.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; 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); } void focus_set_client(Client *client) { Window active; Client *old; guint desktop; /* 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 (client != NULL) { 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); } /* 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(gboolean switching_desks) { ConfigValue focus_follow; GList *it; gboolean under = FALSE; 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 (switching_desks) { /* don't skip any windows when switching desktops */ old = NULL; } else { if (!config_get("focusFollowsMouse", Config_Bool, &focus_follow)) g_assert_not_reached(); if (focus_follow.bool) under = focus_under_pointer(); } if (!under) { for (it = focus_order[screen_desktop]; it != NULL; it = it->next) if (it->data != old && client_normal(it->data)) if (client_focus(it->data)) break; if (it == NULL) /* nothing to focus */ focus_set_client(NULL); } } |