/* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE) * * manage.c: Contains all functions for initially managing new windows * (or existing ones on restart). * */ #include "all.h" /* * Go through all existing windows (if the window manager is restarted) and manage them * */ void manage_existing_windows(xcb_window_t root) { xcb_query_tree_reply_t *reply; int i, len; xcb_window_t *children; xcb_get_window_attributes_cookie_t *cookies; /* Get the tree of windows whose parent is the root window (= all) */ if ((reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, root), 0)) == NULL) return; len = xcb_query_tree_children_length(reply); cookies = smalloc(len * sizeof(*cookies)); /* Request the window attributes for every window */ children = xcb_query_tree_children(reply); for (i = 0; i < len; ++i) cookies[i] = xcb_get_window_attributes(conn, children[i]); /* Call manage_window with the attributes for every window */ for (i = 0; i < len; ++i) manage_window(children[i], cookies[i], true); free(reply); free(cookies); } /* * Restores the geometry of each window by reparenting it to the root window * at the position of its frame. * * This is to be called *only* before exiting/restarting i3 because of evil * side-effects which are to be expected when continuing to run i3. * */ void restore_geometry() { DLOG("Restoring geometry\n"); Con *con; TAILQ_FOREACH(con, &all_cons, all_cons) if (con->window) { DLOG("Re-adding X11 border of %d px\n", con->border_width); con->window_rect.width += (2 * con->border_width); con->window_rect.height += (2 * con->border_width); xcb_set_window_rect(conn, con->window->id, con->window_rect); DLOG("placing window %08x at %d %d\n", con->window->id, con->rect.x, con->rect.y); xcb_reparent_window(conn, con->window->id, root, con->rect.x, con->rect.y); } /* Make sure our changes reach the X server, we restart/exit now */ xcb_flush(conn); } /* * Do some sanity checks and then reparent the window. * */ void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie, bool needs_to_be_mapped) { xcb_drawable_t d = { window }; xcb_get_geometry_cookie_t geomc; xcb_get_geometry_reply_t *geom; xcb_get_window_attributes_reply_t *attr = NULL; DLOG("---> looking at window 0x%08x\n", window); xcb_get_property_cookie_t wm_type_cookie, strut_cookie, state_cookie, utf8_title_cookie, title_cookie, class_cookie, leader_cookie, transient_cookie, role_cookie, startup_id_cookie; geomc = xcb_get_geometry(conn, d); #define FREE_GEOMETRY() do { \ if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) != NULL) \ free(geom); \ } while (0) /* Check if the window is mapped (it could be not mapped when intializing and calling manage_window() for every window) */ if ((attr = xcb_get_window_attributes_reply(conn, cookie, 0)) == NULL) { DLOG("Could not get attributes\n"); FREE_GEOMETRY(); return; } if (needs_to_be_mapped && attr->map_state != XCB_MAP_STATE_VIEWABLE) { DLOG("map_state unviewable\n"); FREE_GEOMETRY(); goto out; } /* Don’t manage clients with the override_redirect flag */ DLOG("override_redirect is %d\n", attr->override_redirect); if (attr->override_redirect) { FREE_GEOMETRY(); goto out; } /* Check if the window is already managed */ if (con_by_window_id(window) != NULL) { DLOG("already managed (by con %p)\n", con_by_window_id(window)); FREE_GEOMETRY(); goto out; } /* Get the initial geometry (position, size, …) */ if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) { DLOG("could not get geometry\n"); goto out; } uint32_t values[1]; /* Set a temporary event mask for the new window, consisting only of * PropertyChange. We need to be notified of PropertyChanges because the * client can change its properties *after* we requested them but *before* * we actually reparented it and have set our final event mask. */ values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE; xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values); #define GET_PROPERTY(atom, len) xcb_get_property(conn, false, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, len) wm_type_cookie = GET_PROPERTY(A__NET_WM_WINDOW_TYPE, UINT32_MAX); strut_cookie = GET_PROPERTY(A__NET_WM_STRUT_PARTIAL, UINT32_MAX); state_cookie = GET_PROPERTY(A__NET_WM_STATE, UINT32_MAX); utf8_title_cookie = GET_PROPERTY(A__NET_WM_NAME, 128); leader_cookie = GET_PROPERTY(A_WM_CLIENT_LEADER, UINT32_MAX); transient_cookie = GET_PROPERTY(XCB_ATOM_WM_TRANSIENT_FOR, UINT32_MAX); title_cookie = GET_PROPERTY(XCB_ATOM_WM_NAME, 128); class_cookie = GET_PROPERTY(XCB_ATOM_WM_CLASS, 128); role_cookie = GET_PROPERTY(A_WM_WINDOW_ROLE, 128); startup_id_cookie = GET_PROPERTY(A__NET_STARTUP_ID, 512); /* TODO: also get wm_normal_hints here. implement after we got rid of xcb-event */ DLOG("reparenting!\n"); i3Window *cwindow = scalloc(sizeof(i3Window)); cwindow->id = window; /* We need to grab the mouse buttons for click to focus */ xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE, 1 /* left mouse button */, XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */); xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE, 3 /* right mouse button */, XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */); /* update as much information as possible so far (some replies may be NULL) */ window_update_class(cwindow, xcb_get_property_reply(conn, class_cookie, NULL), true); window_update_name_legacy(cwindow, xcb_get_property_reply(conn, title_cookie, NULL), true); window_update_name(cwindow, xcb_get_property_reply(conn, utf8_title_cookie, NULL), true); window_update_leader(cwindow, xcb_get_property_reply(conn, leader_cookie, NULL)); window_update_transient_for(cwindow, xcb_get_property_reply(conn, transient_cookie, NULL)); window_update_strut_partial(cwindow, xcb_get_property_reply(conn, strut_cookie, NULL)); window_update_role(cwindow, xcb_get_property_reply(conn, role_cookie, NULL), true); xcb_get_property_reply_t *startup_id_reply; startup_id_reply = xcb_get_property_reply(conn, startup_id_cookie, NULL); char *startup_ws = startup_workspace_for_window(cwindow, startup_id_reply); DLOG("startup workspace = %s\n", startup_ws); /* check if the window needs WM_TAKE_FOCUS */ cwindow->needs_take_focus = window_supports_protocol(cwindow->id, A_WM_TAKE_FOCUS); /* Where to start searching for a container that swallows the new one? */ Con *search_at = croot; xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, wm_type_cookie, NULL); if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DOCK)) { LOG("This window is of type dock\n"); Output *output = get_output_containing(geom->x, geom->y); if (output != NULL) { DLOG("Starting search at output %s\n", output->name); search_at = output->con; } /* find out the desired position of this dock window */ if (cwindow->reserved.top > 0 && cwindow->reserved.bottom == 0) { DLOG("Top dock client\n"); cwindow->dock = W_DOCK_TOP; } else if (cwindow->reserved.top == 0 && cwindow->reserved.bottom > 0) { DLOG("Bottom dock client\n"); cwindow->dock = W_DOCK_BOTTOM; } else { DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n"); if (geom->y < (search_at->rect.height / 2)) { DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n", geom->y, (search_at->rect.height / 2)); cwindow->dock = W_DOCK_TOP; } else { DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n", geom->y, (search_at->rect.height / 2)); cwindow->dock = W_DOCK_BOTTOM; } } } DLOG("Initial geometry: (%d, %d, %d, %d)\n", geom->x, geom->y, geom->width, geom->height); Con *nc = NULL; Match *match; Assignment *assignment; /* TODO: two matches for one container */ /* See if any container swallows this new window */ nc = con_for_window(search_at, cwindow, &match); if (nc == NULL) { /* If not, check if it is assigned to a specific workspace / output */ if ((assignment = assignment_for(cwindow, A_TO_WORKSPACE | A_TO_OUTPUT))) { DLOG("Assignment matches (%p)\n", match); if (assignment->type == A_TO_WORKSPACE) { nc = con_descend_tiling_focused(workspace_get(assignment->dest.workspace, NULL)); DLOG("focused on ws %s: %p / %s\n", assignment->dest.workspace, nc, nc->name); if (nc->type == CT_WORKSPACE) nc = tree_open_con(nc, cwindow); else nc = tree_open_con(nc->parent, cwindow); } /* TODO: handle assignments with type == A_TO_OUTPUT */ } else if (startup_ws) { /* If it’s not assigned, but was started on a specific workspace, * we want to open it there */ DLOG("Using workspace on which this application was started (%s)\n", startup_ws); nc = con_descend_tiling_focused(workspace_get(startup_ws, NULL)); DLOG("focused on ws %s: %p / %s\n", startup_ws, nc, nc->name); if (nc->type == CT_WORKSPACE) nc = tree_open_con(nc, cwindow); else nc = tree_open_con(nc->parent, cwindow); } else { /* If not, insert it at the currently focused position */ if (focused->type == CT_CON && con_accepts_window(focused)) { LOG("using current container, focused = %p, focused->name = %s\n", focused, focused->name); nc = focused; } else nc = tree_open_con(NULL, cwindow); } } else { /* M_BELOW inserts the new window as a child of the one which was * matched (e.g. dock areas) */ if (match != NULL && match->insert_where == M_BELOW) { nc = tree_open_con(nc, cwindow); } } DLOG("new container = %p\n", nc); nc->window = cwindow; x_reinit(nc); nc->border_width = geom->border_width; char *name; asprintf(&name, "[i3 con] container around %p", cwindow); x_set_name(nc, name); free(name); Con *ws = con_get_workspace(nc); Con *fs = (ws ? con_get_fullscreen_con(ws, CF_OUTPUT) : NULL); if (fs == NULL) fs = con_get_fullscreen_con(croot, CF_GLOBAL); if (fs == NULL) { DLOG("Not in fullscreen mode, focusing\n"); if (!cwindow->dock) { /* Check that the workspace is visible. If the window was assigned * to an invisible workspace, we should not steal focus. */ if (workspace_is_visible(ws)) { con_focus(nc); } else DLOG("workspace not visible, not focusing\n"); } else DLOG("dock, not focusing\n"); } else { DLOG("fs = %p, ws = %p, not focusing\n", fs, ws); /* Insert the new container in focus stack *after* the currently * focused (fullscreen) con. This way, the new container will be * focused after we return from fullscreen mode */ Con *first = TAILQ_FIRST(&(nc->parent->focus_head)); if (first != nc) { /* We only modify the focus stack if the container is not already * the first one. This can happen when existing containers swallow * new windows, for example when restarting. */ TAILQ_REMOVE(&(nc->parent->focus_head), nc, focused); TAILQ_INSERT_AFTER(&(nc->parent->focus_head), first, nc, focused); } } /* set floating if necessary */ bool want_floating = false; if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DIALOG) || xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_UTILITY) || xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_TOOLBAR) || xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_SPLASH)) { LOG("This window is a dialog window, setting floating\n"); want_floating = true; } FREE(reply); if (cwindow->transient_for != XCB_NONE || (cwindow->leader != XCB_NONE && cwindow->leader != cwindow->id && con_by_window_id(cwindow->leader) != NULL)) { LOG("This window is transiert for another window, setting floating\n"); want_floating = true; if (config.popup_during_fullscreen == PDF_LEAVE_FULLSCREEN && fs != NULL) { LOG("There is a fullscreen window, leaving fullscreen mode\n"); con_toggle_fullscreen(fs, CF_OUTPUT); } } /* dock clients cannot be floating, that makes no sense */ if (cwindow->dock) want_floating = false; /* Store the requested geometry. The width/height gets raised to at least * 75x50 when entering floating mode, which is the minimum size for a * window to be useful (smaller windows are usually overlays/toolbars/… * which are not managed by the wm anyways). We store the original geometry * here because it’s used for dock clients. */ nc->geometry = (Rect){ geom->x, geom->y, geom->width, geom->height }; if (want_floating) { DLOG("geometry = %d x %d\n", nc->geometry.width, nc->geometry.height); floating_enable(nc, true); } /* to avoid getting an UnmapNotify event due to reparenting, we temporarily * declare no interest in any state change event of this window */ values[0] = XCB_NONE; xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values); xcb_void_cookie_t rcookie = xcb_reparent_window_checked(conn, window, nc->frame, 0, 0); if (xcb_request_check(conn, rcookie) != NULL) { LOG("Could not reparent the window, aborting\n"); goto geom_out; } values[0] = CHILD_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW; xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values); xcb_flush(conn); reply = xcb_get_property_reply(conn, state_cookie, NULL); if (xcb_reply_contains_atom(reply, A__NET_WM_STATE_FULLSCREEN)) con_toggle_fullscreen(nc, CF_OUTPUT); FREE(reply); /* Put the client inside the save set. Upon termination (whether killed or * normal exit does not matter) of the window manager, these clients will * be correctly reparented to their most closest living ancestor (= * cleanup) */ xcb_change_save_set(conn, XCB_SET_MODE_INSERT, window); /* Check if any assignments match */ run_assignments(cwindow); tree_render(); geom_out: free(geom); out: free(attr); return; }