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 * Updates I3_FLOATING_WINDOW by either setting or removing it on the con and
37 static void floating_set_hint_atom(Con *con, bool floating) {
38 if (!con_is_leaf(con)) {
40 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
41 floating_set_hint_atom(child, floating);
45 if (con->window == NULL) {
51 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
52 A_I3_FLOATING_WINDOW, XCB_ATOM_CARDINAL, 32, 1, &val);
54 xcb_delete_property(conn, con->window->id, A_I3_FLOATING_WINDOW);
61 * Called when a floating window is created or resized.
62 * This function resizes the window if its size is higher or lower than the
63 * configured maximum/minimum size, respectively.
66 void floating_check_size(Con *floating_con) {
67 /* Define reasonable minimal and maximal sizes for floating windows */
68 const int floating_sane_min_height = 50;
69 const int floating_sane_min_width = 75;
70 Rect floating_sane_max_dimensions;
71 Con *focused_con = con_descend_focused(floating_con);
73 /* obey size increments */
74 if (focused_con->window != NULL && (focused_con->window->height_increment || focused_con->window->width_increment)) {
75 Rect border_rect = con_border_style_rect(focused_con);
77 /* We have to do the opposite calculations that render_con() do
78 * to get the exact size we want. */
79 border_rect.width = -border_rect.width;
80 border_rect.width += 2 * focused_con->border_width;
81 border_rect.height = -border_rect.height;
82 border_rect.height += 2 * focused_con->border_width;
83 if (con_border_style(focused_con) == BS_NORMAL)
84 border_rect.height += render_deco_height();
86 if (focused_con->window->height_increment &&
87 floating_con->rect.height >= focused_con->window->base_height + border_rect.height) {
88 floating_con->rect.height -= focused_con->window->base_height + border_rect.height;
89 floating_con->rect.height -= floating_con->rect.height % focused_con->window->height_increment;
90 floating_con->rect.height += focused_con->window->base_height + border_rect.height;
93 if (focused_con->window->width_increment &&
94 floating_con->rect.width >= focused_con->window->base_width + border_rect.width) {
95 floating_con->rect.width -= focused_con->window->base_width + border_rect.width;
96 floating_con->rect.width -= floating_con->rect.width % focused_con->window->width_increment;
97 floating_con->rect.width += focused_con->window->base_width + border_rect.width;
101 /* Unless user requests otherwise (-1), ensure width/height do not exceed
102 * configured maxima or, if unconfigured, limit to combined width of all
104 if (config.floating_minimum_height != -1) {
105 if (config.floating_minimum_height == 0)
106 floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
108 floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
110 if (config.floating_minimum_width != -1) {
111 if (config.floating_minimum_width == 0)
112 floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
114 floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
117 /* Unless user requests otherwise (-1), raise the width/height to
118 * reasonable minimum dimensions */
119 floating_sane_max_dimensions = total_outputs_dimensions();
120 if (config.floating_maximum_height != -1) {
121 if (config.floating_maximum_height == 0)
122 floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
124 floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
126 if (config.floating_maximum_width != -1) {
127 if (config.floating_maximum_width == 0)
128 floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
130 floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
134 void floating_enable(Con *con, bool automatic) {
135 bool set_focus = (con == focused);
137 if (con_is_docked(con)) {
138 LOG("Container is a dock window, not enabling floating mode.\n");
142 if (con_is_floating(con)) {
143 LOG("Container is already in floating mode, not doing anything.\n");
147 if (con->type == CT_WORKSPACE) {
148 LOG("Container is a workspace, not enabling floating mode.\n");
152 /* 1: detach the container from its parent */
153 /* TODO: refactor this with tree_close_internal() */
154 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
155 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
157 con_fix_percent(con->parent);
159 /* 2: create a new container to render the decoration on, add
160 * it as a floating window to the workspace */
161 Con *nc = con_new(NULL, NULL);
162 /* we need to set the parent afterwards instead of passing it as an
163 * argument to con_new() because nc would be inserted into the tiling layer
165 Con *ws = con_get_workspace(con);
167 nc->type = CT_FLOATING_CON;
168 nc->layout = L_SPLITH;
169 /* We insert nc already, even though its rect is not yet calculated. This
170 * is necessary because otherwise the workspace might be empty (and get
171 * closed in tree_close_internal()) even though it’s not. */
172 TAILQ_INSERT_TAIL(&(ws->floating_head), nc, floating_windows);
173 TAILQ_INSERT_TAIL(&(ws->focus_head), nc, focused);
175 /* check if the parent container is empty and close it if so */
176 if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
177 con_num_children(con->parent) == 0) {
178 DLOG("Old container empty after setting this child to floating, closing\n");
179 tree_close_internal(con->parent, DONT_KILL_WINDOW, false, false);
183 sasprintf(&name, "[i3 con] floatingcon around %p", con);
184 x_set_name(nc, name);
187 /* find the height for the decorations */
188 int deco_height = render_deco_height();
190 DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
191 DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
192 Rect zero = {0, 0, 0, 0};
193 nc->rect = con->geometry;
194 /* If the geometry was not set (split containers), we need to determine a
195 * sensible one by combining the geometry of all children */
196 if (memcmp(&(nc->rect), &zero, sizeof(Rect)) == 0) {
197 DLOG("Geometry not set, combining children\n");
199 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
200 DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
201 nc->rect.width += child->geometry.width;
202 nc->rect.height = max(nc->rect.height, child->geometry.height);
206 floating_check_size(nc);
208 /* 3: attach the child to the new parent container. We need to do this
209 * because con_border_style_rect() needs to access con->parent. */
212 con->floating = FLOATING_USER_ON;
214 /* 4: set the border style as specified with new_float */
216 con->border_style = config.default_floating_border;
218 /* Add pixels for the decoration. */
219 Rect border_style_rect = con_border_style_rect(con);
221 nc->rect.height -= border_style_rect.height;
222 nc->rect.width -= border_style_rect.width;
224 /* Add some more pixels for the title bar */
225 if (con_border_style(con) == BS_NORMAL)
226 nc->rect.height += deco_height;
228 /* Honor the X11 border */
229 nc->rect.height += con->border_width * 2;
230 nc->rect.width += con->border_width * 2;
232 /* Some clients (like GIMP’s color picker window) get mapped
233 * to (0, 0), so we push them to a reasonable position
234 * (centered over their leader) */
235 if (nc->rect.x == 0 && nc->rect.y == 0) {
237 if (con->window && con->window->leader != XCB_NONE &&
238 (leader = con_by_window_id(con->window->leader)) != NULL) {
239 DLOG("Centering above leader\n");
240 floating_center(nc, leader->rect);
242 /* center the window on workspace as fallback */
243 floating_center(nc, ws->rect);
247 /* Sanity check: Are the coordinates on the appropriate output? If not, we
248 * need to change them */
249 Output *current_output = get_output_containing(nc->rect.x +
250 (nc->rect.width / 2),
251 nc->rect.y + (nc->rect.height / 2));
253 Con *correct_output = con_get_output(ws);
254 if (!current_output || current_output->con != correct_output) {
255 DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
256 nc->rect.x, nc->rect.y);
258 /* If moving from one output to another, keep the relative position
259 * consistent (e.g. a centered dialog will remain centered). */
261 floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
263 nc->rect.x = correct_output->rect.x;
264 nc->rect.y = correct_output->rect.y;
268 DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
270 /* 5: Subtract the deco_height in order to make the floating window appear
271 * at precisely the position it specified in its original geometry (which
272 * is what applications might remember). */
273 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
274 nc->rect.y -= deco_height;
276 DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
278 TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
279 TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
281 /* render the cons to get initial window_rect correct */
282 render_con(nc, false);
283 render_con(con, false);
288 /* Check if we need to re-assign it to a different workspace because of its
289 * coordinates and exit if that was done successfully. */
290 if (floating_maybe_reassign_ws(nc)) {
294 /* Sanitize coordinates: Check if they are on any output */
295 if (get_output_containing(nc->rect.x, nc->rect.y) != NULL) {
299 ELOG("No output found at destination coordinates, centering floating window on current ws\n");
300 floating_center(nc, ws->rect);
303 floating_set_hint_atom(nc, true);
304 ipc_send_window_event("floating", con);
307 void floating_disable(Con *con, bool automatic) {
308 if (!con_is_floating(con)) {
309 LOG("Container isn't floating, not doing anything.\n");
313 const bool set_focus = (con == focused);
315 Con *ws = con_get_workspace(con);
317 /* 1: detach from parent container */
318 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
319 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
321 /* 2: kill parent container */
322 TAILQ_REMOVE(&(con->parent->parent->floating_head), con->parent, floating_windows);
323 TAILQ_REMOVE(&(con->parent->parent->focus_head), con->parent, focused);
324 tree_close_internal(con->parent, DONT_KILL_WINDOW, true, false);
326 /* 3: re-attach to the parent of the currently focused con on the workspace
327 * this floating con was on */
328 Con *focused = con_descend_tiling_focused(ws);
330 /* if there is no other container on this workspace, focused will be the
331 * workspace itself */
332 if (focused->type == CT_WORKSPACE)
333 con->parent = focused;
335 con->parent = focused->parent;
337 /* con_fix_percent will adjust the percent value */
340 con->floating = FLOATING_USER_OFF;
342 con_attach(con, con->parent, false);
344 con_fix_percent(con->parent);
349 floating_set_hint_atom(con, false);
350 ipc_send_window_event("floating", con);
354 * Toggles floating mode for the given container.
356 * If the automatic flag is set to true, this was an automatic update by a change of the
357 * window class from the application which can be overwritten by the user.
360 void toggle_floating_mode(Con *con, bool automatic) {
361 /* forbid the command to toggle floating on a CT_FLOATING_CON */
362 if (con->type == CT_FLOATING_CON) {
363 ELOG("Cannot toggle floating mode on con = %p because it is of type CT_FLOATING_CON.\n", con);
367 /* see if the client is already floating */
368 if (con_is_floating(con)) {
369 LOG("already floating, re-setting to tiling\n");
371 floating_disable(con, automatic);
375 floating_enable(con, automatic);
379 * Raises the given container in the list of floating containers
382 void floating_raise_con(Con *con) {
383 DLOG("Raising floating con %p / %s\n", con, con->name);
384 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
385 TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
389 * Checks if con’s coordinates are within its workspace and re-assigns it to
390 * the actual workspace if not.
393 bool floating_maybe_reassign_ws(Con *con) {
394 Output *output = get_output_containing(
395 con->rect.x + (con->rect.width / 2),
396 con->rect.y + (con->rect.height / 2));
399 ELOG("No output found at destination coordinates?\n");
403 if (con_get_output(con) == output->con) {
404 DLOG("still the same ws\n");
408 DLOG("Need to re-assign!\n");
410 Con *content = output_get_content(output->con);
411 Con *ws = TAILQ_FIRST(&(content->focus_head));
412 DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
413 con_move_to_workspace(con, ws, false, true, false);
414 con_focus(con_descend_focused(con));
419 * Centers a floating con above the specified rect.
422 void floating_center(Con *con, Rect rect) {
423 con->rect.x = rect.x + (rect.width / 2) - (con->rect.width / 2);
424 con->rect.y = rect.y + (rect.height / 2) - (con->rect.height / 2);
428 * Moves the given floating con to the current pointer position.
431 void floating_move_to_pointer(Con *con) {
432 assert(con->type == CT_FLOATING_CON);
434 xcb_query_pointer_reply_t *reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
436 ELOG("could not query pointer position, not moving this container\n");
440 Output *output = get_output_containing(reply->root_x, reply->root_y);
441 if (output == NULL) {
442 ELOG("The pointer is not on any output, cannot move the container here.\n");
446 /* Determine where to put the window. */
447 int32_t x = reply->root_x - con->rect.width / 2;
448 int32_t y = reply->root_y - con->rect.height / 2;
451 /* Correct target coordinates to be in-bounds. */
452 x = MAX(x, (int32_t)output->rect.x);
453 y = MAX(y, (int32_t)output->rect.y);
454 if (x + con->rect.width > output->rect.x + output->rect.width)
455 x = output->rect.x + output->rect.width - con->rect.width;
456 if (y + con->rect.height > output->rect.y + output->rect.height)
457 y = output->rect.y + output->rect.height - con->rect.height;
459 /* Update container's coordinates to position it correctly. */
460 floating_reposition(con, (Rect){x, y, con->rect.width, con->rect.height});
463 DRAGGING_CB(drag_window_callback) {
464 const struct xcb_button_press_event_t *event = extra;
466 /* Reposition the client correctly while moving */
467 con->rect.x = old_rect->x + (new_x - event->root_x);
468 con->rect.y = old_rect->y + (new_y - event->root_y);
470 render_con(con, false);
474 /* Check if we cross workspace boundaries while moving */
475 if (!floating_maybe_reassign_ws(con))
477 /* Ensure not to warp the pointer while dragging */
483 * Called when the user clicked on the titlebar of a floating window.
484 * Calls the drag_pointer function with the drag_window callback
487 void floating_drag_window(Con *con, const xcb_button_press_event_t *event) {
488 DLOG("floating_drag_window\n");
490 /* Push changes before dragging, so that the window gets raised now and not
491 * after the user releases the mouse button */
494 /* Store the initial rect in case of user revert/cancel */
495 Rect initial_rect = con->rect;
497 /* Drag the window */
498 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, XCURSOR_CURSOR_MOVE, drag_window_callback, event);
500 /* If the user cancelled, undo the changes. */
501 if (drag_result == DRAG_REVERT)
502 floating_reposition(con, initial_rect);
504 /* If this is a scratchpad window, don't auto center it from now on. */
505 if (con->scratchpad_state == SCRATCHPAD_FRESH)
506 con->scratchpad_state = SCRATCHPAD_CHANGED;
512 * This is an ugly data structure which we need because there is no standard
513 * way of having nested functions (only available as a gcc extension at the
514 * moment, clang doesn’t support it) or blocks (only available as a clang
515 * extension and only on Mac OS X systems at the moment).
518 struct resize_window_callback_params {
519 const border_t corner;
520 const bool proportional;
521 const xcb_button_press_event_t *event;
524 DRAGGING_CB(resize_window_callback) {
525 const struct resize_window_callback_params *params = extra;
526 const xcb_button_press_event_t *event = params->event;
527 border_t corner = params->corner;
529 int32_t dest_x = con->rect.x;
530 int32_t dest_y = con->rect.y;
532 uint32_t dest_height;
534 double ratio = (double)old_rect->width / old_rect->height;
536 /* First guess: We resize by exactly the amount the mouse moved,
537 * taking into account in which corner the client was grabbed */
538 if (corner & BORDER_LEFT)
539 dest_width = old_rect->width - (new_x - event->root_x);
541 dest_width = old_rect->width + (new_x - event->root_x);
543 if (corner & BORDER_TOP)
544 dest_height = old_rect->height - (new_y - event->root_y);
546 dest_height = old_rect->height + (new_y - event->root_y);
548 /* User wants to keep proportions, so we may have to adjust our values */
549 if (params->proportional) {
550 dest_width = max(dest_width, (int)(dest_height * ratio));
551 dest_height = max(dest_height, (int)(dest_width / ratio));
554 con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
556 /* Obey window size */
557 floating_check_size(con);
559 /* If not the lower right corner is grabbed, we must also reposition
560 * the client by exactly the amount we resized it */
561 if (corner & BORDER_LEFT)
562 dest_x = old_rect->x + (old_rect->width - con->rect.width);
564 if (corner & BORDER_TOP)
565 dest_y = old_rect->y + (old_rect->height - con->rect.height);
567 con->rect.x = dest_x;
568 con->rect.y = dest_y;
570 /* TODO: don’t re-render the whole tree just because we change
571 * coordinates of a floating window */
573 x_push_changes(croot);
577 * Called when the user clicked on a floating window while holding the
578 * floating_modifier and the right mouse button.
579 * Calls the drag_pointer function with the resize_window callback
582 void floating_resize_window(Con *con, const bool proportional,
583 const xcb_button_press_event_t *event) {
584 DLOG("floating_resize_window\n");
586 /* corner saves the nearest corner to the original click. It contains
587 * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
590 if (event->event_x <= (int16_t)(con->rect.width / 2))
591 corner |= BORDER_LEFT;
593 corner |= BORDER_RIGHT;
596 if (event->event_y <= (int16_t)(con->rect.height / 2)) {
597 corner |= BORDER_TOP;
598 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
600 corner |= BORDER_BOTTOM;
601 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
604 struct resize_window_callback_params params = {corner, proportional, event};
606 /* get the initial rect in case of revert/cancel */
607 Rect initial_rect = con->rect;
609 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, cursor, resize_window_callback, ¶ms);
611 /* If the user cancels, undo the resize */
612 if (drag_result == DRAG_REVERT)
613 floating_reposition(con, initial_rect);
615 /* If this is a scratchpad window, don't auto center it from now on. */
616 if (con->scratchpad_state == SCRATCHPAD_FRESH)
617 con->scratchpad_state = SCRATCHPAD_CHANGED;
620 /* As endorsed by “ASSOCIATING CUSTOM DATA WITH A WATCHER” in ev(3) */
624 /* Whether this modal event loop should be exited and with which result. */
625 drag_result_t result;
627 /* The container that is being dragged or resized, or NULL if this is a
628 * drag of the resize handle. */
631 /* The dimensions of con when the loop was started. */
634 /* The callback to invoke after every pointer movement. */
637 /* User data pointer for callback. */
641 static void xcb_drag_check_cb(EV_P_ ev_check *w, int revents) {
642 struct drag_x11_cb *dragloop = (struct drag_x11_cb *)w;
643 xcb_motion_notify_event_t *last_motion_notify = NULL;
644 xcb_generic_event_t *event;
646 while ((event = xcb_poll_for_event(conn)) != NULL) {
647 if (event->response_type == 0) {
648 xcb_generic_error_t *error = (xcb_generic_error_t *)event;
649 DLOG("X11 Error received (probably harmless)! sequence 0x%x, error_code = %d\n",
650 error->sequence, error->error_code);
655 /* Strip off the highest bit (set if the event is generated) */
656 int type = (event->response_type & 0x7F);
659 case XCB_BUTTON_RELEASE:
660 dragloop->result = DRAG_SUCCESS;
664 DLOG("A key was pressed during drag, reverting changes.\n");
665 dragloop->result = DRAG_REVERT;
666 handle_event(type, event);
669 case XCB_UNMAP_NOTIFY: {
670 xcb_unmap_notify_event_t *unmap_event = (xcb_unmap_notify_event_t *)event;
671 Con *con = con_by_window_id(unmap_event->window);
674 DLOG("UnmapNotify for window 0x%08x (container %p)\n", unmap_event->window, con);
676 if (con_get_workspace(con) == con_get_workspace(focused)) {
677 DLOG("UnmapNotify for a managed window on the current workspace, aborting\n");
678 dragloop->result = DRAG_ABORT;
682 handle_event(type, event);
686 case XCB_MOTION_NOTIFY:
687 /* motion_notify events are saved for later */
688 FREE(last_motion_notify);
689 last_motion_notify = (xcb_motion_notify_event_t *)event;
693 DLOG("Passing to original handler\n");
694 handle_event(type, event);
698 if (last_motion_notify != (xcb_motion_notify_event_t *)event)
701 if (dragloop->result != DRAGGING)
705 if (last_motion_notify == NULL)
710 &(dragloop->old_rect),
711 last_motion_notify->root_x,
712 last_motion_notify->root_y,
714 free(last_motion_notify);
718 * This function grabs your pointer and keyboard and lets you drag stuff around
719 * (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
720 * be received and the given callback will be called with the parameters
721 * specified (client, border on which the click originally was), the original
722 * rect of the client, the event and the new coordinates (x, y).
725 drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t
727 border_t border, int cursor, callback_t callback, const void *extra) {
728 xcb_cursor_t xcursor = (cursor && xcursor_supported) ? xcursor_get_cursor(cursor) : XCB_NONE;
730 /* Grab the pointer */
731 xcb_grab_pointer_cookie_t cookie;
732 xcb_grab_pointer_reply_t *reply;
733 xcb_generic_error_t *error;
735 cookie = xcb_grab_pointer(conn,
736 false, /* get all pointer events specified by the following mask */
737 root, /* grab the root window */
738 XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
739 XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
740 XCB_GRAB_MODE_ASYNC, /* keyboard mode */
741 confine_to, /* confine_to = in which window should the cursor stay */
742 xcursor, /* possibly display a special cursor */
745 if ((reply = xcb_grab_pointer_reply(conn, cookie, &error)) == NULL) {
746 ELOG("Could not grab pointer (error_code = %d)\n", error->error_code);
753 /* Grab the keyboard */
754 xcb_grab_keyboard_cookie_t keyb_cookie;
755 xcb_grab_keyboard_reply_t *keyb_reply;
757 keyb_cookie = xcb_grab_keyboard(conn,
758 false, /* get all keyboard events */
759 root, /* grab the root window */
761 XCB_GRAB_MODE_ASYNC, /* continue processing pointer events as normal */
762 XCB_GRAB_MODE_ASYNC /* keyboard mode */
765 if ((keyb_reply = xcb_grab_keyboard_reply(conn, keyb_cookie, &error)) == NULL) {
766 ELOG("Could not grab keyboard (error_code = %d)\n", error->error_code);
768 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
774 /* Go into our own event loop */
775 struct drag_x11_cb loop = {
778 .callback = callback,
782 loop.old_rect = con->rect;
783 ev_check_init(&loop.check, xcb_drag_check_cb);
784 main_set_x11_cb(false);
785 ev_check_start(main_loop, &loop.check);
787 while (loop.result == DRAGGING)
788 ev_run(main_loop, EVRUN_ONCE);
790 ev_check_stop(main_loop, &loop.check);
791 main_set_x11_cb(true);
793 xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
794 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
801 * Repositions the CT_FLOATING_CON to have the coordinates specified by
802 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
803 * the floating con to a different workspace if this move was across different
807 void floating_reposition(Con *con, Rect newrect) {
808 /* Sanity check: Are the new coordinates on any output? If not, we
809 * ignore that request. */
810 if (!contained_by_output(newrect)) {
811 ELOG("No output found at destination coordinates. Not repositioning.\n");
817 floating_maybe_reassign_ws(con);
819 /* If this is a scratchpad window, don't auto center it from now on. */
820 if (con->scratchpad_state == SCRATCHPAD_FRESH)
821 con->scratchpad_state = SCRATCHPAD_CHANGED;
827 * Sets size of the CT_FLOATING_CON to specified dimensions. Might limit the
828 * actual size with regard to size constraints taken from user settings.
829 * Additionally, the dimensions may be upscaled until they're divisible by the
830 * window's size hints.
833 void floating_resize(Con *floating_con, int x, int y) {
834 DLOG("floating resize to %dx%d px\n", x, y);
835 Rect *rect = &floating_con->rect;
836 Con *focused_con = con_descend_focused(floating_con);
837 if (focused_con->window == NULL) {
838 DLOG("No window is focused. Not resizing.\n");
841 int wi = focused_con->window->width_increment;
842 int hi = focused_con->window->height_increment;
846 rect->width += (wi - 1 - rect->width) % wi;
848 rect->height += (hi - 1 - rect->height) % hi;
850 floating_check_size(floating_con);
852 /* If this is a scratchpad window, don't auto center it from now on. */
853 if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
854 floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
858 * Fixes the coordinates of the floating window whenever the window gets
859 * reassigned to a different output (or when the output’s rect changes).
862 void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
863 DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
864 con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
865 DLOG("old_rect = (%d, %d), %d x %d\n",
866 old_rect->x, old_rect->y, old_rect->width, old_rect->height);
867 DLOG("new_rect = (%d, %d), %d x %d\n",
868 new_rect->x, new_rect->y, new_rect->width, new_rect->height);
869 /* First we get the x/y coordinates relative to the x/y coordinates
870 * of the output on which the window is on */
871 int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
872 int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
873 /* Then we calculate a fraction, for example 0.63 for a window
874 * which is at y = 1212 of a 1920 px high output */
875 DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
876 rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
877 old_rect->width, old_rect->height);
878 /* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
879 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);
880 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);
881 DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
886 * Moves the client 10px to the specified direction.
889 void floating_move(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
890 DLOG("floating move\n");
892 Rect destination = currently_focused->rect;
893 Rect *screen = &(currently_focused->workspace->output->rect);
908 /* to make static analyzers happy */
913 /* Prevent windows from vanishing completely */
914 if ((int32_t)(destination.x + destination.width - 5) <= (int32_t)screen->x ||
915 (int32_t)(destination.x + 5) >= (int32_t)(screen->x + screen->width) ||
916 (int32_t)(destination.y + destination.height - 5) <= (int32_t)screen->y ||
917 (int32_t)(destination.y + 5) >= (int32_t)(screen->y + screen->height)) {
918 DLOG("boundary check failed, not moving\n");
922 currently_focused->rect = destination;
923 reposition_client(conn, currently_focused);
925 /* Because reposition_client does not send a faked configure event (only resize does),
926 * we need to initiate that on our own */
927 fake_absolute_configure_notify(conn, currently_focused);
928 /* fake_absolute_configure_notify flushes */
932 * Hides all floating clients (or show them if they are currently hidden) on
933 * the specified workspace.
936 void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace) {
939 workspace->floating_hidden = !workspace->floating_hidden;
940 DLOG("floating_hidden is now: %d\n", workspace->floating_hidden);
941 TAILQ_FOREACH(client, &(workspace->floating_clients), floating_clients) {
942 if (workspace->floating_hidden)
943 client_unmap(conn, client);
944 else client_map(conn, client);
947 /* If we just unmapped all floating windows we should ensure that the focus
948 * is set correctly, that ist, to the first non-floating client in stack */
949 if (workspace->floating_hidden)
950 SLIST_FOREACH(client, &(workspace->focus_stack), focus_clients) {
951 if (client_is_floating(client))
953 set_focus(conn, client, true);