2 #define I3__FILE__ "floating.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
9 * floating.c: Floating windows.
15 * Calculates sum of heights and sum of widths of all currently active outputs
18 static Rect total_outputs_dimensions(void) {
19 if (TAILQ_EMPTY(&outputs))
20 return (Rect){0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
23 /* Use Rect to encapsulate dimensions, ignoring x/y */
24 Rect outputs_dimensions = {0, 0, 0, 0};
25 TAILQ_FOREACH(output, &outputs, outputs) {
26 outputs_dimensions.height += output->rect.height;
27 outputs_dimensions.width += output->rect.width;
29 return outputs_dimensions;
33 * Called when a floating window is created or resized.
34 * This function resizes the window if its size is higher or lower than the
35 * configured maximum/minimum size, respectively.
38 void floating_check_size(Con *floating_con) {
39 /* Define reasonable minimal and maximal sizes for floating windows */
40 const int floating_sane_min_height = 50;
41 const int floating_sane_min_width = 75;
42 Rect floating_sane_max_dimensions;
43 Con *focused_con = con_descend_focused(floating_con);
45 /* obey size increments */
46 if (focused_con->window != NULL && (focused_con->window->height_increment || focused_con->window->width_increment)) {
47 Rect border_rect = con_border_style_rect(focused_con);
49 /* We have to do the opposite calculations that render_con() do
50 * to get the exact size we want. */
51 border_rect.width = -border_rect.width;
52 border_rect.width += 2 * focused_con->border_width;
53 border_rect.height = -border_rect.height;
54 border_rect.height += 2 * focused_con->border_width;
55 if (con_border_style(focused_con) == BS_NORMAL)
56 border_rect.height += render_deco_height();
58 if (focused_con->window->height_increment &&
59 floating_con->rect.height >= focused_con->window->base_height + border_rect.height) {
60 floating_con->rect.height -= focused_con->window->base_height + border_rect.height;
61 floating_con->rect.height -= floating_con->rect.height % focused_con->window->height_increment;
62 floating_con->rect.height += focused_con->window->base_height + border_rect.height;
65 if (focused_con->window->width_increment &&
66 floating_con->rect.width >= focused_con->window->base_width + border_rect.width) {
67 floating_con->rect.width -= focused_con->window->base_width + border_rect.width;
68 floating_con->rect.width -= floating_con->rect.width % focused_con->window->width_increment;
69 floating_con->rect.width += focused_con->window->base_width + border_rect.width;
73 /* Unless user requests otherwise (-1), ensure width/height do not exceed
74 * configured maxima or, if unconfigured, limit to combined width of all
76 if (config.floating_minimum_height != -1) {
77 if (config.floating_minimum_height == 0)
78 floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
80 floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
82 if (config.floating_minimum_width != -1) {
83 if (config.floating_minimum_width == 0)
84 floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
86 floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
89 /* Unless user requests otherwise (-1), raise the width/height to
90 * reasonable minimum dimensions */
91 floating_sane_max_dimensions = total_outputs_dimensions();
92 if (config.floating_maximum_height != -1) {
93 if (config.floating_maximum_height == 0)
94 floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
96 floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
98 if (config.floating_maximum_width != -1) {
99 if (config.floating_maximum_width == 0)
100 floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
102 floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
106 void floating_enable(Con *con, bool automatic) {
107 bool set_focus = (con == focused);
109 if (con_is_docked(con)) {
110 LOG("Container is a dock window, not enabling floating mode.\n");
114 if (con_is_floating(con)) {
115 LOG("Container is already in floating mode, not doing anything.\n");
119 if (con->type == CT_WORKSPACE) {
120 LOG("Container is a workspace, not enabling floating mode.\n");
124 /* 1: detach the container from its parent */
125 /* TODO: refactor this with tree_close_internal() */
126 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
127 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
129 con_fix_percent(con->parent);
131 /* 2: create a new container to render the decoration on, add
132 * it as a floating window to the workspace */
133 Con *nc = con_new(NULL, NULL);
134 /* we need to set the parent afterwards instead of passing it as an
135 * argument to con_new() because nc would be inserted into the tiling layer
137 Con *ws = con_get_workspace(con);
139 nc->type = CT_FLOATING_CON;
140 nc->layout = L_SPLITH;
141 /* We insert nc already, even though its rect is not yet calculated. This
142 * is necessary because otherwise the workspace might be empty (and get
143 * closed in tree_close_internal()) even though it’s not. */
144 TAILQ_INSERT_TAIL(&(ws->floating_head), nc, floating_windows);
145 TAILQ_INSERT_TAIL(&(ws->focus_head), nc, focused);
147 /* check if the parent container is empty and close it if so */
148 if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
149 con_num_children(con->parent) == 0) {
150 DLOG("Old container empty after setting this child to floating, closing\n");
151 tree_close_internal(con->parent, DONT_KILL_WINDOW, false, false);
155 sasprintf(&name, "[i3 con] floatingcon around %p", con);
156 x_set_name(nc, name);
159 /* find the height for the decorations */
160 int deco_height = render_deco_height();
162 DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
163 DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
164 Rect zero = {0, 0, 0, 0};
165 nc->rect = con->geometry;
166 /* If the geometry was not set (split containers), we need to determine a
167 * sensible one by combining the geometry of all children */
168 if (memcmp(&(nc->rect), &zero, sizeof(Rect)) == 0) {
169 DLOG("Geometry not set, combining children\n");
171 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
172 DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
173 nc->rect.width += child->geometry.width;
174 nc->rect.height = max(nc->rect.height, child->geometry.height);
178 floating_check_size(nc);
180 /* 3: attach the child to the new parent container. We need to do this
181 * because con_border_style_rect() needs to access con->parent. */
184 con->floating = FLOATING_USER_ON;
186 /* 4: set the border style as specified with new_float */
188 con->border_style = config.default_floating_border;
190 /* Add pixels for the decoration. */
191 Rect border_style_rect = con_border_style_rect(con);
193 nc->rect.height -= border_style_rect.height;
194 nc->rect.width -= border_style_rect.width;
196 /* Add some more pixels for the title bar */
197 if (con_border_style(con) == BS_NORMAL)
198 nc->rect.height += deco_height;
200 /* Honor the X11 border */
201 nc->rect.height += con->border_width * 2;
202 nc->rect.width += con->border_width * 2;
204 /* Some clients (like GIMP’s color picker window) get mapped
205 * to (0, 0), so we push them to a reasonable position
206 * (centered over their leader) */
207 if (nc->rect.x == 0 && nc->rect.y == 0) {
209 if (con->window && con->window->leader != XCB_NONE &&
210 (leader = con_by_window_id(con->window->leader)) != NULL) {
211 DLOG("Centering above leader\n");
212 floating_center(nc, leader->rect);
214 /* center the window on workspace as fallback */
215 floating_center(nc, ws->rect);
219 /* Sanity check: Are the coordinates on the appropriate output? If not, we
220 * need to change them */
221 Output *current_output = get_output_containing(nc->rect.x +
222 (nc->rect.width / 2),
223 nc->rect.y + (nc->rect.height / 2));
225 Con *correct_output = con_get_output(ws);
226 if (!current_output || current_output->con != correct_output) {
227 DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
228 nc->rect.x, nc->rect.y);
230 /* If moving from one output to another, keep the relative position
231 * consistent (e.g. a centered dialog will remain centered). */
233 floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
235 nc->rect.x = correct_output->rect.x;
236 nc->rect.y = correct_output->rect.y;
240 DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
242 /* 5: Subtract the deco_height in order to make the floating window appear
243 * at precisely the position it specified in its original geometry (which
244 * is what applications might remember). */
245 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
246 nc->rect.y -= deco_height;
248 DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
250 TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
251 TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
253 /* render the cons to get initial window_rect correct */
254 render_con(nc, false);
255 render_con(con, false);
260 /* Check if we need to re-assign it to a different workspace because of its
261 * coordinates and exit if that was done successfully. */
262 if (floating_maybe_reassign_ws(nc)) {
263 ipc_send_window_event("floating", con);
267 /* Sanitize coordinates: Check if they are on any output */
268 if (get_output_containing(nc->rect.x, nc->rect.y) != NULL) {
269 ipc_send_window_event("floating", con);
273 ELOG("No output found at destination coordinates, centering floating window on current ws\n");
274 floating_center(nc, ws->rect);
276 ipc_send_window_event("floating", con);
279 void floating_disable(Con *con, bool automatic) {
280 if (!con_is_floating(con)) {
281 LOG("Container isn't floating, not doing anything.\n");
285 const bool set_focus = (con == focused);
287 Con *ws = con_get_workspace(con);
289 /* 1: detach from parent container */
290 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
291 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
293 /* 2: kill parent container */
294 TAILQ_REMOVE(&(con->parent->parent->floating_head), con->parent, floating_windows);
295 TAILQ_REMOVE(&(con->parent->parent->focus_head), con->parent, focused);
296 tree_close_internal(con->parent, DONT_KILL_WINDOW, true, false);
298 /* 3: re-attach to the parent of the currently focused con on the workspace
299 * this floating con was on */
300 Con *focused = con_descend_tiling_focused(ws);
302 /* if there is no other container on this workspace, focused will be the
303 * workspace itself */
304 if (focused->type == CT_WORKSPACE)
305 con->parent = focused;
307 con->parent = focused->parent;
309 /* con_fix_percent will adjust the percent value */
312 con->floating = FLOATING_USER_OFF;
314 con_attach(con, con->parent, false);
316 con_fix_percent(con->parent);
321 ipc_send_window_event("floating", con);
325 * Toggles floating mode for the given container.
327 * If the automatic flag is set to true, this was an automatic update by a change of the
328 * window class from the application which can be overwritten by the user.
331 void toggle_floating_mode(Con *con, bool automatic) {
332 /* forbid the command to toggle floating on a CT_FLOATING_CON */
333 if (con->type == CT_FLOATING_CON) {
334 ELOG("Cannot toggle floating mode on con = %p because it is of type CT_FLOATING_CON.\n", con);
338 /* see if the client is already floating */
339 if (con_is_floating(con)) {
340 LOG("already floating, re-setting to tiling\n");
342 floating_disable(con, automatic);
346 floating_enable(con, automatic);
350 * Raises the given container in the list of floating containers
353 void floating_raise_con(Con *con) {
354 DLOG("Raising floating con %p / %s\n", con, con->name);
355 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
356 TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
360 * Checks if con’s coordinates are within its workspace and re-assigns it to
361 * the actual workspace if not.
364 bool floating_maybe_reassign_ws(Con *con) {
365 Output *output = get_output_containing(
366 con->rect.x + (con->rect.width / 2),
367 con->rect.y + (con->rect.height / 2));
370 ELOG("No output found at destination coordinates?\n");
374 if (con_get_output(con) == output->con) {
375 DLOG("still the same ws\n");
379 DLOG("Need to re-assign!\n");
381 Con *content = output_get_content(output->con);
382 Con *ws = TAILQ_FIRST(&(content->focus_head));
383 DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
384 con_move_to_workspace(con, ws, false, true, false);
385 con_focus(con_descend_focused(con));
390 * Centers a floating con above the specified rect.
393 void floating_center(Con *con, Rect rect) {
394 con->rect.x = rect.x + (rect.width / 2) - (con->rect.width / 2);
395 con->rect.y = rect.y + (rect.height / 2) - (con->rect.height / 2);
399 * Moves the given floating con to the current pointer position.
402 void floating_move_to_pointer(Con *con) {
403 assert(con->type == CT_FLOATING_CON);
405 xcb_query_pointer_reply_t *reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
407 ELOG("could not query pointer position, not moving this container\n");
411 Output *output = get_output_containing(reply->root_x, reply->root_y);
412 if (output == NULL) {
413 ELOG("The pointer is not on any output, cannot move the container here.\n");
417 /* Determine where to put the window. */
418 int32_t x = reply->root_x - con->rect.width / 2;
419 int32_t y = reply->root_y - con->rect.height / 2;
422 /* Correct target coordinates to be in-bounds. */
423 x = MAX(x, (int32_t)output->rect.x);
424 y = MAX(y, (int32_t)output->rect.y);
425 if (x + con->rect.width > output->rect.x + output->rect.width)
426 x = output->rect.x + output->rect.width - con->rect.width;
427 if (y + con->rect.height > output->rect.y + output->rect.height)
428 y = output->rect.y + output->rect.height - con->rect.height;
430 /* Update container's coordinates to position it correctly. */
431 floating_reposition(con, (Rect){x, y, con->rect.width, con->rect.height});
434 DRAGGING_CB(drag_window_callback) {
435 const struct xcb_button_press_event_t *event = extra;
437 /* Reposition the client correctly while moving */
438 con->rect.x = old_rect->x + (new_x - event->root_x);
439 con->rect.y = old_rect->y + (new_y - event->root_y);
441 render_con(con, false);
445 /* Check if we cross workspace boundaries while moving */
446 if (!floating_maybe_reassign_ws(con))
448 /* Ensure not to warp the pointer while dragging */
454 * Called when the user clicked on the titlebar of a floating window.
455 * Calls the drag_pointer function with the drag_window callback
458 void floating_drag_window(Con *con, const xcb_button_press_event_t *event) {
459 DLOG("floating_drag_window\n");
461 /* Push changes before dragging, so that the window gets raised now and not
462 * after the user releases the mouse button */
465 /* Store the initial rect in case of user revert/cancel */
466 Rect initial_rect = con->rect;
468 /* Drag the window */
469 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, XCURSOR_CURSOR_MOVE, drag_window_callback, event);
471 /* If the user cancelled, undo the changes. */
472 if (drag_result == DRAG_REVERT)
473 floating_reposition(con, initial_rect);
475 /* If this is a scratchpad window, don't auto center it from now on. */
476 if (con->scratchpad_state == SCRATCHPAD_FRESH)
477 con->scratchpad_state = SCRATCHPAD_CHANGED;
483 * This is an ugly data structure which we need because there is no standard
484 * way of having nested functions (only available as a gcc extension at the
485 * moment, clang doesn’t support it) or blocks (only available as a clang
486 * extension and only on Mac OS X systems at the moment).
489 struct resize_window_callback_params {
490 const border_t corner;
491 const bool proportional;
492 const xcb_button_press_event_t *event;
495 DRAGGING_CB(resize_window_callback) {
496 const struct resize_window_callback_params *params = extra;
497 const xcb_button_press_event_t *event = params->event;
498 border_t corner = params->corner;
500 int32_t dest_x = con->rect.x;
501 int32_t dest_y = con->rect.y;
503 uint32_t dest_height;
505 double ratio = (double)old_rect->width / old_rect->height;
507 /* First guess: We resize by exactly the amount the mouse moved,
508 * taking into account in which corner the client was grabbed */
509 if (corner & BORDER_LEFT)
510 dest_width = old_rect->width - (new_x - event->root_x);
512 dest_width = old_rect->width + (new_x - event->root_x);
514 if (corner & BORDER_TOP)
515 dest_height = old_rect->height - (new_y - event->root_y);
517 dest_height = old_rect->height + (new_y - event->root_y);
519 /* User wants to keep proportions, so we may have to adjust our values */
520 if (params->proportional) {
521 dest_width = max(dest_width, (int)(dest_height * ratio));
522 dest_height = max(dest_height, (int)(dest_width / ratio));
525 con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
527 /* Obey window size */
528 floating_check_size(con);
530 /* If not the lower right corner is grabbed, we must also reposition
531 * the client by exactly the amount we resized it */
532 if (corner & BORDER_LEFT)
533 dest_x = old_rect->x + (old_rect->width - con->rect.width);
535 if (corner & BORDER_TOP)
536 dest_y = old_rect->y + (old_rect->height - con->rect.height);
538 con->rect.x = dest_x;
539 con->rect.y = dest_y;
541 /* TODO: don’t re-render the whole tree just because we change
542 * coordinates of a floating window */
544 x_push_changes(croot);
548 * Called when the user clicked on a floating window while holding the
549 * floating_modifier and the right mouse button.
550 * Calls the drag_pointer function with the resize_window callback
553 void floating_resize_window(Con *con, const bool proportional,
554 const xcb_button_press_event_t *event) {
555 DLOG("floating_resize_window\n");
557 /* corner saves the nearest corner to the original click. It contains
558 * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
561 if (event->event_x <= (int16_t)(con->rect.width / 2))
562 corner |= BORDER_LEFT;
564 corner |= BORDER_RIGHT;
567 if (event->event_y <= (int16_t)(con->rect.height / 2)) {
568 corner |= BORDER_TOP;
569 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
571 corner |= BORDER_BOTTOM;
572 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
575 struct resize_window_callback_params params = {corner, proportional, event};
577 /* get the initial rect in case of revert/cancel */
578 Rect initial_rect = con->rect;
580 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, cursor, resize_window_callback, ¶ms);
582 /* If the user cancels, undo the resize */
583 if (drag_result == DRAG_REVERT)
584 floating_reposition(con, initial_rect);
586 /* If this is a scratchpad window, don't auto center it from now on. */
587 if (con->scratchpad_state == SCRATCHPAD_FRESH)
588 con->scratchpad_state = SCRATCHPAD_CHANGED;
591 /* As endorsed by “ASSOCIATING CUSTOM DATA WITH A WATCHER” in ev(3) */
595 /* Whether this modal event loop should be exited and with which result. */
596 drag_result_t result;
598 /* The container that is being dragged or resized, or NULL if this is a
599 * drag of the resize handle. */
602 /* The dimensions of con when the loop was started. */
605 /* The callback to invoke after every pointer movement. */
608 /* User data pointer for callback. */
612 static void xcb_drag_check_cb(EV_P_ ev_check *w, int revents) {
613 struct drag_x11_cb *dragloop = (struct drag_x11_cb *)w;
614 xcb_motion_notify_event_t *last_motion_notify = NULL;
615 xcb_generic_event_t *event;
617 while ((event = xcb_poll_for_event(conn)) != NULL) {
618 if (event->response_type == 0) {
619 xcb_generic_error_t *error = (xcb_generic_error_t *)event;
620 DLOG("X11 Error received (probably harmless)! sequence 0x%x, error_code = %d\n",
621 error->sequence, error->error_code);
626 /* Strip off the highest bit (set if the event is generated) */
627 int type = (event->response_type & 0x7F);
630 case XCB_BUTTON_RELEASE:
631 dragloop->result = DRAG_SUCCESS;
635 DLOG("A key was pressed during drag, reverting changes.\n");
636 dragloop->result = DRAG_REVERT;
637 handle_event(type, event);
640 case XCB_UNMAP_NOTIFY: {
641 xcb_unmap_notify_event_t *unmap_event = (xcb_unmap_notify_event_t *)event;
642 Con *con = con_by_window_id(unmap_event->window);
645 DLOG("UnmapNotify for window 0x%08x (container %p)\n", unmap_event->window, con);
647 if (con_get_workspace(con) == con_get_workspace(focused)) {
648 DLOG("UnmapNotify for a managed window on the current workspace, aborting\n");
649 dragloop->result = DRAG_ABORT;
653 handle_event(type, event);
657 case XCB_MOTION_NOTIFY:
658 /* motion_notify events are saved for later */
659 FREE(last_motion_notify);
660 last_motion_notify = (xcb_motion_notify_event_t *)event;
664 DLOG("Passing to original handler\n");
665 handle_event(type, event);
669 if (last_motion_notify != (xcb_motion_notify_event_t *)event)
672 if (dragloop->result != DRAGGING)
676 if (last_motion_notify == NULL)
681 &(dragloop->old_rect),
682 last_motion_notify->root_x,
683 last_motion_notify->root_y,
685 free(last_motion_notify);
689 * This function grabs your pointer and keyboard and lets you drag stuff around
690 * (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
691 * be received and the given callback will be called with the parameters
692 * specified (client, border on which the click originally was), the original
693 * rect of the client, the event and the new coordinates (x, y).
696 drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t
698 border_t border, int cursor, callback_t callback, const void *extra) {
699 xcb_cursor_t xcursor = (cursor && xcursor_supported) ? xcursor_get_cursor(cursor) : XCB_NONE;
701 /* Grab the pointer */
702 xcb_grab_pointer_cookie_t cookie;
703 xcb_grab_pointer_reply_t *reply;
704 xcb_generic_error_t *error;
706 cookie = xcb_grab_pointer(conn,
707 false, /* get all pointer events specified by the following mask */
708 root, /* grab the root window */
709 XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
710 XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
711 XCB_GRAB_MODE_ASYNC, /* keyboard mode */
712 confine_to, /* confine_to = in which window should the cursor stay */
713 xcursor, /* possibly display a special cursor */
716 if ((reply = xcb_grab_pointer_reply(conn, cookie, &error)) == NULL) {
717 ELOG("Could not grab pointer (error_code = %d)\n", error->error_code);
724 /* Grab the keyboard */
725 xcb_grab_keyboard_cookie_t keyb_cookie;
726 xcb_grab_keyboard_reply_t *keyb_reply;
728 keyb_cookie = xcb_grab_keyboard(conn,
729 false, /* get all keyboard events */
730 root, /* grab the root window */
732 XCB_GRAB_MODE_ASYNC, /* continue processing pointer events as normal */
733 XCB_GRAB_MODE_ASYNC /* keyboard mode */
736 if ((keyb_reply = xcb_grab_keyboard_reply(conn, keyb_cookie, &error)) == NULL) {
737 ELOG("Could not grab keyboard (error_code = %d)\n", error->error_code);
739 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
745 /* Go into our own event loop */
746 struct drag_x11_cb loop = {
749 .callback = callback,
753 loop.old_rect = con->rect;
754 ev_check_init(&loop.check, xcb_drag_check_cb);
755 main_set_x11_cb(false);
756 ev_check_start(main_loop, &loop.check);
758 while (loop.result == DRAGGING)
759 ev_run(main_loop, EVRUN_ONCE);
761 ev_check_stop(main_loop, &loop.check);
762 main_set_x11_cb(true);
764 xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
765 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
772 * Repositions the CT_FLOATING_CON to have the coordinates specified by
773 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
774 * the floating con to a different workspace if this move was across different
778 void floating_reposition(Con *con, Rect newrect) {
779 /* Sanity check: Are the new coordinates on any output? If not, we
780 * ignore that request. */
781 if (!contained_by_output(newrect)) {
782 ELOG("No output found at destination coordinates. Not repositioning.\n");
788 floating_maybe_reassign_ws(con);
790 /* If this is a scratchpad window, don't auto center it from now on. */
791 if (con->scratchpad_state == SCRATCHPAD_FRESH)
792 con->scratchpad_state = SCRATCHPAD_CHANGED;
798 * Sets size of the CT_FLOATING_CON to specified dimensions. Might limit the
799 * actual size with regard to size constraints taken from user settings.
800 * Additionally, the dimensions may be upscaled until they're divisible by the
801 * window's size hints.
804 void floating_resize(Con *floating_con, int x, int y) {
805 DLOG("floating resize to %dx%d px\n", x, y);
806 Rect *rect = &floating_con->rect;
807 Con *focused_con = con_descend_focused(floating_con);
808 if (focused_con->window == NULL) {
809 DLOG("No window is focused. Not resizing.\n");
812 int wi = focused_con->window->width_increment;
813 int hi = focused_con->window->height_increment;
817 rect->width += (wi - 1 - rect->width) % wi;
819 rect->height += (hi - 1 - rect->height) % hi;
821 floating_check_size(floating_con);
823 /* If this is a scratchpad window, don't auto center it from now on. */
824 if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
825 floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
829 * Fixes the coordinates of the floating window whenever the window gets
830 * reassigned to a different output (or when the output’s rect changes).
833 void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
834 DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
835 con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
836 DLOG("old_rect = (%d, %d), %d x %d\n",
837 old_rect->x, old_rect->y, old_rect->width, old_rect->height);
838 DLOG("new_rect = (%d, %d), %d x %d\n",
839 new_rect->x, new_rect->y, new_rect->width, new_rect->height);
840 /* First we get the x/y coordinates relative to the x/y coordinates
841 * of the output on which the window is on */
842 int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
843 int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
844 /* Then we calculate a fraction, for example 0.63 for a window
845 * which is at y = 1212 of a 1920 px high output */
846 DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
847 rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
848 old_rect->width, old_rect->height);
849 /* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
850 con->rect.x = (int32_t)new_rect->x + (double)(rel_x * (int32_t)new_rect->width) / (int32_t)old_rect->width - (int32_t)(con->rect.width / 2);
851 con->rect.y = (int32_t)new_rect->y + (double)(rel_y * (int32_t)new_rect->height) / (int32_t)old_rect->height - (int32_t)(con->rect.height / 2);
852 DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
857 * Moves the client 10px to the specified direction.
860 void floating_move(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
861 DLOG("floating move\n");
863 Rect destination = currently_focused->rect;
864 Rect *screen = &(currently_focused->workspace->output->rect);
879 /* to make static analyzers happy */
884 /* Prevent windows from vanishing completely */
885 if ((int32_t)(destination.x + destination.width - 5) <= (int32_t)screen->x ||
886 (int32_t)(destination.x + 5) >= (int32_t)(screen->x + screen->width) ||
887 (int32_t)(destination.y + destination.height - 5) <= (int32_t)screen->y ||
888 (int32_t)(destination.y + 5) >= (int32_t)(screen->y + screen->height)) {
889 DLOG("boundary check failed, not moving\n");
893 currently_focused->rect = destination;
894 reposition_client(conn, currently_focused);
896 /* Because reposition_client does not send a faked configure event (only resize does),
897 * we need to initiate that on our own */
898 fake_absolute_configure_notify(conn, currently_focused);
899 /* fake_absolute_configure_notify flushes */
903 * Hides all floating clients (or show them if they are currently hidden) on
904 * the specified workspace.
907 void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace) {
910 workspace->floating_hidden = !workspace->floating_hidden;
911 DLOG("floating_hidden is now: %d\n", workspace->floating_hidden);
912 TAILQ_FOREACH(client, &(workspace->floating_clients), floating_clients) {
913 if (workspace->floating_hidden)
914 client_unmap(conn, client);
915 else client_map(conn, client);
918 /* If we just unmapped all floating windows we should ensure that the focus
919 * is set correctly, that ist, to the first non-floating client in stack */
920 if (workspace->floating_hidden)
921 SLIST_FOREACH(client, &(workspace->focus_stack), focus_clients) {
922 if (client_is_floating(client))
924 set_focus(conn, client, true);