468 lines
20 KiB
C
468 lines
20 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* manage.c: Contains all functions for initially managing new windows
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* (or existing ones on restart).
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*
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*/
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#include "all.h"
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/*
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* Go through all existing windows (if the window manager is restarted) and manage them
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*
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*/
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void manage_existing_windows(xcb_window_t root) {
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xcb_query_tree_reply_t *reply;
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int i, len;
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xcb_window_t *children;
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xcb_get_window_attributes_cookie_t *cookies;
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/* Get the tree of windows whose parent is the root window (= all) */
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if ((reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, root), 0)) == NULL)
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return;
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len = xcb_query_tree_children_length(reply);
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cookies = smalloc(len * sizeof(*cookies));
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/* Request the window attributes for every window */
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children = xcb_query_tree_children(reply);
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for (i = 0; i < len; ++i)
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cookies[i] = xcb_get_window_attributes(conn, children[i]);
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/* Call manage_window with the attributes for every window */
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for (i = 0; i < len; ++i)
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manage_window(children[i], cookies[i], true);
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free(reply);
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free(cookies);
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}
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/*
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* Restores the geometry of each window by reparenting it to the root window
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* at the position of its frame.
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*
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* This is to be called *only* before exiting/restarting i3 because of evil
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* side-effects which are to be expected when continuing to run i3.
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*
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*/
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void restore_geometry() {
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LOG("Restoring geometry\n");
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Con *con;
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TAILQ_FOREACH(con, &all_cons, all_cons)
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if (con->window) {
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printf("placing window at %d %d\n", con->rect.x, con->rect.y);
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xcb_reparent_window(conn, con->window->id, root,
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con->rect.x, con->rect.y);
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}
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/* Make sure our changes reach the X server, we restart/exit now */
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xcb_flush(conn);
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}
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/*
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* Do some sanity checks and then reparent the window.
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*
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*/
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void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie,
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bool needs_to_be_mapped) {
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xcb_drawable_t d = { window };
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xcb_get_geometry_cookie_t geomc;
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xcb_get_geometry_reply_t *geom;
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xcb_get_window_attributes_reply_t *attr = 0;
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printf("---> looking at window 0x%08x\n", window);
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xcb_get_property_cookie_t wm_type_cookie, strut_cookie, state_cookie,
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utf8_title_cookie, title_cookie,
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class_cookie, leader_cookie, transient_cookie;
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wm_type_cookie = xcb_get_any_property_unchecked(conn, false, window, atoms[_NET_WM_WINDOW_TYPE], UINT32_MAX);
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strut_cookie = xcb_get_any_property_unchecked(conn, false, window, atoms[_NET_WM_STRUT_PARTIAL], UINT32_MAX);
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state_cookie = xcb_get_any_property_unchecked(conn, false, window, atoms[_NET_WM_STATE], UINT32_MAX);
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utf8_title_cookie = xcb_get_any_property_unchecked(conn, false, window, atoms[_NET_WM_NAME], 128);
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leader_cookie = xcb_get_any_property_unchecked(conn, false, window, atoms[WM_CLIENT_LEADER], UINT32_MAX);
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transient_cookie = xcb_get_any_property_unchecked(conn, false, window, WM_TRANSIENT_FOR, UINT32_MAX);
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title_cookie = xcb_get_any_property_unchecked(conn, false, window, WM_NAME, 128);
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class_cookie = xcb_get_any_property_unchecked(conn, false, window, WM_CLASS, 128);
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/* TODO: also get wm_normal_hints here. implement after we got rid of xcb-event */
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geomc = xcb_get_geometry(conn, d);
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/* Check if the window is mapped (it could be not mapped when intializing and
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calling manage_window() for every window) */
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if ((attr = xcb_get_window_attributes_reply(conn, cookie, 0)) == NULL) {
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LOG("Could not get attributes\n");
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return;
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}
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if (needs_to_be_mapped && attr->map_state != XCB_MAP_STATE_VIEWABLE) {
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LOG("map_state unviewable\n");
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goto out;
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}
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/* Don’t manage clients with the override_redirect flag */
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LOG("override_redirect is %d\n", attr->override_redirect);
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if (attr->override_redirect)
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goto out;
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/* Check if the window is already managed */
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if (con_by_window_id(window) != NULL) {
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LOG("already managed (by con %p)\n", con_by_window_id(window));
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goto out;
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}
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/* Get the initial geometry (position, size, …) */
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if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) {
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LOG("could not get geometry\n");
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goto out;
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}
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LOG("reparenting!\n");
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uint32_t mask = 0;
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uint32_t values[1];
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i3Window *cwindow = scalloc(sizeof(i3Window));
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cwindow->id = window;
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/* We need to grab the mouse buttons for click to focus */
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xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
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XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
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1 /* left mouse button */,
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XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
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xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
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XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
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3 /* right mouse button */,
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XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
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/* update as much information as possible so far (some replies may be NULL) */
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window_update_class(cwindow, xcb_get_property_reply(conn, class_cookie, NULL));
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window_update_name_legacy(cwindow, xcb_get_property_reply(conn, title_cookie, NULL));
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window_update_name(cwindow, xcb_get_property_reply(conn, utf8_title_cookie, NULL));
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window_update_leader(cwindow, xcb_get_property_reply(conn, leader_cookie, NULL));
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window_update_transient_for(cwindow, xcb_get_property_reply(conn, transient_cookie, NULL));
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xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, wm_type_cookie, NULL);
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if (xcb_reply_contains_atom(reply, atoms[_NET_WM_WINDOW_TYPE_DOCK])) {
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cwindow->dock = true;
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LOG("this window is a dock\n");
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}
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Con *nc;
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Match *match;
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/* TODO: assignments */
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/* TODO: two matches for one container */
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/* See if any container swallows this new window */
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nc = con_for_window(cwindow, &match);
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if (nc == NULL) {
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if (focused->type == CT_CON && con_accepts_window(focused)) {
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LOG("using current container, focused = %p, focused->name = %s\n",
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focused, focused->name);
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nc = focused;
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} else nc = tree_open_con(NULL);
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} else {
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if (match != NULL && match->insert_where == M_ACTIVE) {
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/* We need to go down the focus stack starting from nc */
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while (TAILQ_FIRST(&(nc->focus_head)) != TAILQ_END(&(nc->focus_head))) {
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printf("walking down one step...\n");
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nc = TAILQ_FIRST(&(nc->focus_head));
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}
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/* We need to open a new con */
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/* TODO: make a difference between match-once containers (directly assign
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* cwindow) and match-multiple (tree_open_con first) */
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nc = tree_open_con(nc->parent);
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}
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}
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DLOG("new container = %p\n", nc);
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nc->window = cwindow;
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x_reinit(nc);
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char *name;
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asprintf(&name, "[i3 con] container around %p", cwindow);
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x_set_name(nc, name);
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free(name);
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/* set floating if necessary */
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bool want_floating = false;
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if (xcb_reply_contains_atom(reply, atoms[_NET_WM_WINDOW_TYPE_DIALOG]) ||
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xcb_reply_contains_atom(reply, atoms[_NET_WM_WINDOW_TYPE_UTILITY]) ||
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xcb_reply_contains_atom(reply, atoms[_NET_WM_WINDOW_TYPE_TOOLBAR]) ||
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xcb_reply_contains_atom(reply, atoms[_NET_WM_WINDOW_TYPE_SPLASH])) {
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LOG("This window is a dialog window, setting floating\n");
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want_floating = true;
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}
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if (cwindow->transient_for != XCB_NONE || cwindow->leader != XCB_NONE)
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want_floating = true;
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if (want_floating) {
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nc->rect.x = geom->x;
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nc->rect.y = geom->y;
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/* We respect the geometry wishes of floating windows, as long as they
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* are bigger than our minimal useful size (75x50). */
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nc->rect.width = max(geom->width, 75);
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nc->rect.height = max(geom->height, 50);
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LOG("geometry = %d x %d\n", nc->rect.width, nc->rect.height);
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floating_enable(nc, false);
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}
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/* to avoid getting an UnmapNotify event due to reparenting, we temporarily
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* declare no interest in any state change event of this window */
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values[0] = XCB_NONE;
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xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
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xcb_void_cookie_t rcookie = xcb_reparent_window_checked(conn, window, nc->frame, 0, 0);
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if (xcb_request_check(conn, rcookie) != NULL) {
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LOG("Could not reparent the window, aborting\n");
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goto out;
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}
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mask = XCB_CW_EVENT_MASK;
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values[0] = CHILD_EVENT_MASK;
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xcb_change_window_attributes(conn, window, mask, values);
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reply = xcb_get_property_reply(conn, state_cookie, NULL);
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if (xcb_reply_contains_atom(reply, atoms[_NET_WM_STATE_FULLSCREEN]))
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con_toggle_fullscreen(nc);
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/* Put the client inside the save set. Upon termination (whether killed or
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* normal exit does not matter) of the window manager, these clients will
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* be correctly reparented to their most closest living ancestor (=
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* cleanup) */
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xcb_change_save_set(conn, XCB_SET_MODE_INSERT, window);
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tree_render();
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free(geom);
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out:
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free(attr);
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return;
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}
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#if 0
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void reparent_window(xcb_connection_t *conn, xcb_window_t child,
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xcb_visualid_t visual, xcb_window_t root, uint8_t depth,
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int16_t x, int16_t y, uint16_t width, uint16_t height,
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uint32_t border_width) {
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/* Minimum useful size for managed windows is 75x50 (primarily affects floating) */
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width = max(width, 75);
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height = max(height, 50);
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if (config.default_border != NULL)
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client_init_border(conn, new, config.default_border[1]);
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/* We need to grab the mouse buttons for click to focus */
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xcb_grab_button(conn, false, child, XCB_EVENT_MASK_BUTTON_PRESS,
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XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
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1 /* left mouse button */,
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XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
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xcb_grab_button(conn, false, child, XCB_EVENT_MASK_BUTTON_PRESS,
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XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
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3 /* right mouse button */,
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XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
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if (dock) {
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DLOG("Window is a dock.\n");
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Output *t_out = get_output_containing(x, y);
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if (t_out != c_ws->output) {
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DLOG("Dock client requested to be on output %s by geometry (%d, %d)\n",
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t_out->name, x, y);
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new->workspace = t_out->current_workspace;
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}
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new->dock = true;
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new->borderless = true;
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new->titlebar_position = TITLEBAR_OFF;
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new->force_reconfigure = true;
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new->container = NULL;
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SLIST_INSERT_HEAD(&(t_out->dock_clients), new, dock_clients);
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/* If it’s a dock we can’t make it float, so we break */
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new->floating = FLOATING_AUTO_OFF;
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}
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/* All clients which have a leader should be floating */
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if (!new->dock && !client_is_floating(new) && new->leader != 0) {
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DLOG("Client has WM_CLIENT_LEADER hint set, setting floating\n");
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new->floating = FLOATING_AUTO_ON;
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}
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if (new->workspace->auto_float) {
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new->floating = FLOATING_AUTO_ON;
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DLOG("workspace is in autofloat mode, setting floating\n");
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}
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if (new->dock) {
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/* Get _NET_WM_STRUT_PARTIAL to determine the client’s requested height */
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uint32_t *strut;
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preply = xcb_get_property_reply(conn, strut_cookie, NULL);
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if (preply != NULL && preply->value_len > 0 && (strut = xcb_get_property_value(preply))) {
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/* We only use a subset of the provided values, namely the reserved space at the top/bottom
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of the screen. This is because the only possibility for bars is at to be at the top/bottom
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with maximum horizontal size.
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TODO: bars at the top */
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new->desired_height = strut[3];
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if (new->desired_height == 0) {
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DLOG("Client wanted to be 0 pixels high, using the window's height (%d)\n", original_height);
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new->desired_height = original_height;
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}
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DLOG("the client wants to be %d pixels high\n", new->desired_height);
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} else {
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DLOG("The client didn't specify space to reserve at the screen edge, using its height (%d)\n", original_height);
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new->desired_height = original_height;
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}
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} else {
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/* If it’s not a dock, we can check on which workspace we should put it. */
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/* Firstly, we need to get the window’s class / title. We asked for the properties at the
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* top of this function, get them now and pass them to our callback function for window class / title
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* changes. It is important that the client was already inserted into the by_child table,
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* because the callbacks won’t work otherwise. */
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preply = xcb_get_property_reply(conn, utf8_title_cookie, NULL);
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handle_windowname_change(NULL, conn, 0, new->child, atoms[_NET_WM_NAME], preply);
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preply = xcb_get_property_reply(conn, title_cookie, NULL);
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handle_windowname_change_legacy(NULL, conn, 0, new->child, WM_NAME, preply);
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preply = xcb_get_property_reply(conn, class_cookie, NULL);
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handle_windowclass_change(NULL, conn, 0, new->child, WM_CLASS, preply);
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/* if WM_CLIENT_LEADER is set, we put the new window on the
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* same window as its leader. This might be overwritten by
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* assignments afterwards. */
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if (new->leader != XCB_NONE) {
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DLOG("client->leader is set (to 0x%08x)\n", new->leader);
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Client *parent = table_get(&by_child, new->leader);
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if (parent != NULL && parent->container != NULL) {
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Workspace *t_ws = parent->workspace;
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new->container = t_ws->table[parent->container->col][parent->container->row];
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new->workspace = t_ws;
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old_focused = new->container->currently_focused;
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map_frame = workspace_is_visible(t_ws);
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new->urgent = true;
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/* This is a little tricky: we cannot use
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* workspace_update_urgent_flag() because the
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* new window was not yet inserted into the
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* focus stack on t_ws. */
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t_ws->urgent = true;
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} else {
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DLOG("parent is not usable\n");
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}
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}
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struct Assignment *assign;
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TAILQ_FOREACH(assign, &assignments, assignments) {
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if (get_matching_client(conn, assign->windowclass_title, new) == NULL)
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continue;
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if (assign->floating == ASSIGN_FLOATING_ONLY ||
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assign->floating == ASSIGN_FLOATING) {
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new->floating = FLOATING_AUTO_ON;
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LOG("Assignment matches, putting client into floating mode\n");
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if (assign->floating == ASSIGN_FLOATING_ONLY)
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break;
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}
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LOG("Assignment \"%s\" matches, so putting it on workspace %d\n",
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assign->windowclass_title, assign->workspace);
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if (c_ws->output->current_workspace->num == (assign->workspace-1)) {
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DLOG("We are already there, no need to do anything\n");
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break;
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}
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DLOG("Changing container/workspace and unmapping the client\n");
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Workspace *t_ws = workspace_get(assign->workspace-1);
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workspace_initialize(t_ws, c_ws->output, false);
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new->container = t_ws->table[t_ws->current_col][t_ws->current_row];
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new->workspace = t_ws;
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old_focused = new->container->currently_focused;
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map_frame = workspace_is_visible(t_ws);
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break;
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}
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}
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if (client_is_floating(new)) {
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SLIST_INSERT_HEAD(&(new->workspace->focus_stack), new, focus_clients);
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/* Add the client to the list of floating clients for its workspace */
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TAILQ_INSERT_TAIL(&(new->workspace->floating_clients), new, floating_clients);
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new->container = NULL;
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new->rect.width = new->floating_rect.width + 2 + 2;
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new->rect.height = new->floating_rect.height + (font->height + 2 + 2) + 2;
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/* Some clients (like GIMP’s color picker window) get mapped
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* to (0, 0), so we push them to a reasonable position
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* (centered over their leader) */
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if (new->leader != 0 && x == 0 && y == 0) {
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DLOG("Floating client wants to (0x0), moving it over its leader instead\n");
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Client *leader = table_get(&by_child, new->leader);
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if (leader == NULL) {
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DLOG("leader is NULL, centering it over current workspace\n");
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x = c_ws->rect.x + (c_ws->rect.width / 2) - (new->rect.width / 2);
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y = c_ws->rect.y + (c_ws->rect.height / 2) - (new->rect.height / 2);
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} else {
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x = leader->rect.x + (leader->rect.width / 2) - (new->rect.width / 2);
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y = leader->rect.y + (leader->rect.height / 2) - (new->rect.height / 2);
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}
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}
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new->floating_rect.x = new->rect.x = x;
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new->floating_rect.y = new->rect.y = y;
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DLOG("copying floating_rect from tiling (%d, %d) size (%d, %d)\n",
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new->floating_rect.x, new->floating_rect.y,
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new->floating_rect.width, new->floating_rect.height);
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DLOG("outer rect (%d, %d) size (%d, %d)\n",
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new->rect.x, new->rect.y, new->rect.width, new->rect.height);
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||
|
||
/* Make sure it is on top of the other windows */
|
||
xcb_raise_window(conn, new->frame);
|
||
reposition_client(conn, new);
|
||
resize_client(conn, new);
|
||
/* redecorate_window flushes */
|
||
redecorate_window(conn, new);
|
||
}
|
||
|
||
new->initialized = true;
|
||
|
||
|
||
render_layout(conn);
|
||
|
||
map:
|
||
/* Map the window first to avoid flickering */
|
||
xcb_map_window(conn, child);
|
||
if (map_frame)
|
||
client_map(conn, new);
|
||
|
||
if ((CUR_CELL->workspace->fullscreen_client == NULL || new->fullscreen) && !new->dock) {
|
||
/* Focus the new window if we’re not in fullscreen mode and if it is not a dock window */
|
||
if ((new->workspace->fullscreen_client == NULL) || new->fullscreen) {
|
||
if (!client_is_floating(new)) {
|
||
new->container->currently_focused = new;
|
||
if (map_frame)
|
||
render_container(conn, new->container);
|
||
}
|
||
if (new->container == CUR_CELL || client_is_floating(new)) {
|
||
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, new->child, XCB_CURRENT_TIME);
|
||
ewmh_update_active_window(new->child);
|
||
}
|
||
}
|
||
}
|
||
|
||
xcb_flush(conn);
|
||
}
|
||
#endif
|