2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
7 * floating.c: Floating windows.
13 #define MAX(x, y) ((x) > (y) ? (x) : (y))
17 * Calculates sum of heights and sum of widths of all currently active outputs
20 static Rect total_outputs_dimensions(void) {
21 if (TAILQ_EMPTY(&outputs))
22 return (Rect){0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
25 /* Use Rect to encapsulate dimensions, ignoring x/y */
26 Rect outputs_dimensions = {0, 0, 0, 0};
27 TAILQ_FOREACH(output, &outputs, outputs) {
28 outputs_dimensions.height += output->rect.height;
29 outputs_dimensions.width += output->rect.width;
31 return outputs_dimensions;
35 * Updates I3_FLOATING_WINDOW by either setting or removing it on the con and
39 static void floating_set_hint_atom(Con *con, bool floating) {
40 if (!con_is_leaf(con)) {
42 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
43 floating_set_hint_atom(child, floating);
47 if (con->window == NULL) {
53 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
54 A_I3_FLOATING_WINDOW, XCB_ATOM_CARDINAL, 32, 1, &val);
56 xcb_delete_property(conn, con->window->id, A_I3_FLOATING_WINDOW);
63 * Called when a floating window is created or resized.
64 * This function resizes the window if its size is higher or lower than the
65 * configured maximum/minimum size, respectively.
68 void floating_check_size(Con *floating_con) {
69 /* Define reasonable minimal and maximal sizes for floating windows */
70 const int floating_sane_min_height = 50;
71 const int floating_sane_min_width = 75;
72 Rect floating_sane_max_dimensions;
73 Con *focused_con = con_descend_focused(floating_con);
75 /* obey size increments */
76 if (focused_con->window != NULL && (focused_con->window->height_increment || focused_con->window->width_increment)) {
77 Rect border_rect = con_border_style_rect(focused_con);
79 /* We have to do the opposite calculations that render_con() do
80 * to get the exact size we want. */
81 border_rect.width = -border_rect.width;
82 border_rect.width += 2 * focused_con->border_width;
83 border_rect.height = -border_rect.height;
84 border_rect.height += 2 * focused_con->border_width;
85 if (con_border_style(focused_con) == BS_NORMAL)
86 border_rect.height += render_deco_height();
88 if (focused_con->window->height_increment &&
89 floating_con->rect.height >= focused_con->window->base_height + border_rect.height) {
90 floating_con->rect.height -= focused_con->window->base_height + border_rect.height;
91 floating_con->rect.height -= floating_con->rect.height % focused_con->window->height_increment;
92 floating_con->rect.height += focused_con->window->base_height + border_rect.height;
95 if (focused_con->window->width_increment &&
96 floating_con->rect.width >= focused_con->window->base_width + border_rect.width) {
97 floating_con->rect.width -= focused_con->window->base_width + border_rect.width;
98 floating_con->rect.width -= floating_con->rect.width % focused_con->window->width_increment;
99 floating_con->rect.width += focused_con->window->base_width + border_rect.width;
103 /* Unless user requests otherwise (-1), ensure width/height do not exceed
104 * configured maxima or, if unconfigured, limit to combined width of all
106 if (config.floating_minimum_height != -1) {
107 if (config.floating_minimum_height == 0)
108 floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
110 floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
112 if (config.floating_minimum_width != -1) {
113 if (config.floating_minimum_width == 0)
114 floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
116 floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
119 /* Unless user requests otherwise (-1), raise the width/height to
120 * reasonable minimum dimensions */
121 floating_sane_max_dimensions = total_outputs_dimensions();
122 if (config.floating_maximum_height != -1) {
123 if (config.floating_maximum_height == 0)
124 floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
126 floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
128 if (config.floating_maximum_width != -1) {
129 if (config.floating_maximum_width == 0)
130 floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
132 floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
136 void floating_enable(Con *con, bool automatic) {
137 bool set_focus = (con == focused);
139 if (con_is_docked(con)) {
140 LOG("Container is a dock window, not enabling floating mode.\n");
144 if (con_is_floating(con)) {
145 LOG("Container is already in floating mode, not doing anything.\n");
149 if (con->type == CT_WORKSPACE) {
150 LOG("Container is a workspace, not enabling floating mode.\n");
154 /* 1: detach the container from its parent */
155 /* TODO: refactor this with tree_close_internal() */
156 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
157 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
159 con_fix_percent(con->parent);
161 /* 2: create a new container to render the decoration on, add
162 * it as a floating window to the workspace */
163 Con *nc = con_new(NULL, NULL);
164 /* we need to set the parent afterwards instead of passing it as an
165 * argument to con_new() because nc would be inserted into the tiling layer
167 Con *ws = con_get_workspace(con);
169 nc->type = CT_FLOATING_CON;
170 nc->layout = L_SPLITH;
171 /* We insert nc already, even though its rect is not yet calculated. This
172 * is necessary because otherwise the workspace might be empty (and get
173 * closed in tree_close_internal()) even though it’s not. */
174 TAILQ_INSERT_TAIL(&(ws->floating_head), nc, floating_windows);
175 TAILQ_INSERT_TAIL(&(ws->focus_head), nc, focused);
177 /* check if the parent container is empty and close it if so */
178 if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
179 con_num_children(con->parent) == 0) {
180 DLOG("Old container empty after setting this child to floating, closing\n");
181 Con *parent = con->parent;
182 /* clear the pointer before calling tree_close_internal in which the memory is freed */
184 tree_close_internal(parent, DONT_KILL_WINDOW, false, false);
188 sasprintf(&name, "[i3 con] floatingcon around %p", con);
189 x_set_name(nc, name);
192 /* find the height for the decorations */
193 int deco_height = render_deco_height();
195 DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
196 DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
197 Rect zero = {0, 0, 0, 0};
198 nc->rect = con->geometry;
199 /* If the geometry was not set (split containers), we need to determine a
200 * sensible one by combining the geometry of all children */
201 if (memcmp(&(nc->rect), &zero, sizeof(Rect)) == 0) {
202 DLOG("Geometry not set, combining children\n");
204 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
205 DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
206 nc->rect.width += child->geometry.width;
207 nc->rect.height = max(nc->rect.height, child->geometry.height);
211 floating_check_size(nc);
213 /* 3: attach the child to the new parent container. We need to do this
214 * because con_border_style_rect() needs to access con->parent. */
217 con->floating = FLOATING_USER_ON;
219 /* 4: set the border style as specified with new_float */
221 con->border_style = config.default_floating_border;
223 /* Add pixels for the decoration. */
224 Rect border_style_rect = con_border_style_rect(con);
226 nc->rect.height -= border_style_rect.height;
227 nc->rect.width -= border_style_rect.width;
229 /* Add some more pixels for the title bar */
230 if (con_border_style(con) == BS_NORMAL)
231 nc->rect.height += deco_height;
233 /* Honor the X11 border */
234 nc->rect.height += con->border_width * 2;
235 nc->rect.width += con->border_width * 2;
237 /* Some clients (like GIMP’s color picker window) get mapped
238 * to (0, 0), so we push them to a reasonable position
239 * (centered over their leader) */
240 if (nc->rect.x == 0 && nc->rect.y == 0) {
242 if (con->window && con->window->leader != XCB_NONE &&
243 (leader = con_by_window_id(con->window->leader)) != NULL) {
244 DLOG("Centering above leader\n");
245 floating_center(nc, leader->rect);
247 /* center the window on workspace as fallback */
248 floating_center(nc, ws->rect);
252 /* Sanity check: Are the coordinates on the appropriate output? If not, we
253 * need to change them */
254 Output *current_output = get_output_containing(nc->rect.x +
255 (nc->rect.width / 2),
256 nc->rect.y + (nc->rect.height / 2));
258 Con *correct_output = con_get_output(ws);
259 if (!current_output || current_output->con != correct_output) {
260 DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
261 nc->rect.x, nc->rect.y);
263 /* If moving from one output to another, keep the relative position
264 * consistent (e.g. a centered dialog will remain centered). */
266 floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
268 nc->rect.x = correct_output->rect.x;
269 nc->rect.y = correct_output->rect.y;
273 DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
275 /* 5: Subtract the deco_height in order to make the floating window appear
276 * at precisely the position it specified in its original geometry (which
277 * is what applications might remember). */
278 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
279 nc->rect.y -= deco_height;
281 DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
283 TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
284 TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
286 /* render the cons to get initial window_rect correct */
287 render_con(nc, false);
288 render_con(con, false);
293 /* Check if we need to re-assign it to a different workspace because of its
294 * coordinates and exit if that was done successfully. */
295 if (floating_maybe_reassign_ws(nc)) {
299 /* Sanitize coordinates: Check if they are on any output */
300 if (get_output_containing(nc->rect.x, nc->rect.y) != NULL) {
304 ELOG("No output found at destination coordinates, centering floating window on current ws\n");
305 floating_center(nc, ws->rect);
308 floating_set_hint_atom(nc, true);
309 ipc_send_window_event("floating", con);
312 void floating_disable(Con *con, bool automatic) {
313 if (!con_is_floating(con)) {
314 LOG("Container isn't floating, not doing anything.\n");
318 const bool set_focus = (con == focused);
320 Con *ws = con_get_workspace(con);
321 Con *parent = con->parent;
323 /* 1: detach from parent container */
324 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
325 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
327 /* 2: kill parent container */
328 TAILQ_REMOVE(&(con->parent->parent->floating_head), con->parent, floating_windows);
329 TAILQ_REMOVE(&(con->parent->parent->focus_head), con->parent, focused);
330 /* clear the pointer before calling tree_close_internal in which the memory is freed */
332 tree_close_internal(parent, DONT_KILL_WINDOW, true, false);
334 /* 3: re-attach to the parent of the currently focused con on the workspace
335 * this floating con was on */
336 Con *focused = con_descend_tiling_focused(ws);
338 /* if there is no other container on this workspace, focused will be the
339 * workspace itself */
340 if (focused->type == CT_WORKSPACE)
341 con->parent = focused;
343 con->parent = focused->parent;
345 /* con_fix_percent will adjust the percent value */
348 con->floating = FLOATING_USER_OFF;
350 con_attach(con, con->parent, false);
352 con_fix_percent(con->parent);
357 floating_set_hint_atom(con, false);
358 ipc_send_window_event("floating", con);
362 * Toggles floating mode for the given container.
364 * If the automatic flag is set to true, this was an automatic update by a change of the
365 * window class from the application which can be overwritten by the user.
368 void toggle_floating_mode(Con *con, bool automatic) {
369 /* forbid the command to toggle floating on a CT_FLOATING_CON */
370 if (con->type == CT_FLOATING_CON) {
371 ELOG("Cannot toggle floating mode on con = %p because it is of type CT_FLOATING_CON.\n", con);
375 /* see if the client is already floating */
376 if (con_is_floating(con)) {
377 LOG("already floating, re-setting to tiling\n");
379 floating_disable(con, automatic);
383 floating_enable(con, automatic);
387 * Raises the given container in the list of floating containers
390 void floating_raise_con(Con *con) {
391 DLOG("Raising floating con %p / %s\n", con, con->name);
392 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
393 TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
397 * Checks if con’s coordinates are within its workspace and re-assigns it to
398 * the actual workspace if not.
401 bool floating_maybe_reassign_ws(Con *con) {
402 Output *output = get_output_containing(
403 con->rect.x + (con->rect.width / 2),
404 con->rect.y + (con->rect.height / 2));
407 ELOG("No output found at destination coordinates?\n");
411 if (con_get_output(con) == output->con) {
412 DLOG("still the same ws\n");
416 DLOG("Need to re-assign!\n");
418 Con *content = output_get_content(output->con);
419 Con *ws = TAILQ_FIRST(&(content->focus_head));
420 DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
421 con_move_to_workspace(con, ws, false, true, false);
422 con_focus(con_descend_focused(con));
427 * Centers a floating con above the specified rect.
430 void floating_center(Con *con, Rect rect) {
431 con->rect.x = rect.x + (rect.width / 2) - (con->rect.width / 2);
432 con->rect.y = rect.y + (rect.height / 2) - (con->rect.height / 2);
436 * Moves the given floating con to the current pointer position.
439 void floating_move_to_pointer(Con *con) {
440 assert(con->type == CT_FLOATING_CON);
442 xcb_query_pointer_reply_t *reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
444 ELOG("could not query pointer position, not moving this container\n");
448 Output *output = get_output_containing(reply->root_x, reply->root_y);
449 if (output == NULL) {
450 ELOG("The pointer is not on any output, cannot move the container here.\n");
454 /* Determine where to put the window. */
455 int32_t x = reply->root_x - con->rect.width / 2;
456 int32_t y = reply->root_y - con->rect.height / 2;
459 /* Correct target coordinates to be in-bounds. */
460 x = MAX(x, (int32_t)output->rect.x);
461 y = MAX(y, (int32_t)output->rect.y);
462 if (x + con->rect.width > output->rect.x + output->rect.width)
463 x = output->rect.x + output->rect.width - con->rect.width;
464 if (y + con->rect.height > output->rect.y + output->rect.height)
465 y = output->rect.y + output->rect.height - con->rect.height;
467 /* Update container's coordinates to position it correctly. */
468 floating_reposition(con, (Rect){x, y, con->rect.width, con->rect.height});
471 DRAGGING_CB(drag_window_callback) {
472 const struct xcb_button_press_event_t *event = extra;
474 /* Reposition the client correctly while moving */
475 con->rect.x = old_rect->x + (new_x - event->root_x);
476 con->rect.y = old_rect->y + (new_y - event->root_y);
478 render_con(con, false);
482 /* Check if we cross workspace boundaries while moving */
483 if (!floating_maybe_reassign_ws(con))
485 /* Ensure not to warp the pointer while dragging */
491 * Called when the user clicked on the titlebar of a floating window.
492 * Calls the drag_pointer function with the drag_window callback
495 void floating_drag_window(Con *con, const xcb_button_press_event_t *event) {
496 DLOG("floating_drag_window\n");
498 /* Push changes before dragging, so that the window gets raised now and not
499 * after the user releases the mouse button */
502 /* Store the initial rect in case of user revert/cancel */
503 Rect initial_rect = con->rect;
505 /* Drag the window */
506 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, XCURSOR_CURSOR_MOVE, drag_window_callback, event);
508 /* If the user cancelled, undo the changes. */
509 if (drag_result == DRAG_REVERT)
510 floating_reposition(con, initial_rect);
512 /* If this is a scratchpad window, don't auto center it from now on. */
513 if (con->scratchpad_state == SCRATCHPAD_FRESH)
514 con->scratchpad_state = SCRATCHPAD_CHANGED;
520 * This is an ugly data structure which we need because there is no standard
521 * way of having nested functions (only available as a gcc extension at the
522 * moment, clang doesn’t support it) or blocks (only available as a clang
523 * extension and only on Mac OS X systems at the moment).
526 struct resize_window_callback_params {
527 const border_t corner;
528 const bool proportional;
529 const xcb_button_press_event_t *event;
532 DRAGGING_CB(resize_window_callback) {
533 const struct resize_window_callback_params *params = extra;
534 const xcb_button_press_event_t *event = params->event;
535 border_t corner = params->corner;
537 int32_t dest_x = con->rect.x;
538 int32_t dest_y = con->rect.y;
540 uint32_t dest_height;
542 double ratio = (double)old_rect->width / old_rect->height;
544 /* First guess: We resize by exactly the amount the mouse moved,
545 * taking into account in which corner the client was grabbed */
546 if (corner & BORDER_LEFT)
547 dest_width = old_rect->width - (new_x - event->root_x);
549 dest_width = old_rect->width + (new_x - event->root_x);
551 if (corner & BORDER_TOP)
552 dest_height = old_rect->height - (new_y - event->root_y);
554 dest_height = old_rect->height + (new_y - event->root_y);
556 /* User wants to keep proportions, so we may have to adjust our values */
557 if (params->proportional) {
558 dest_width = max(dest_width, (int)(dest_height * ratio));
559 dest_height = max(dest_height, (int)(dest_width / ratio));
562 con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
564 /* Obey window size */
565 floating_check_size(con);
567 /* If not the lower right corner is grabbed, we must also reposition
568 * the client by exactly the amount we resized it */
569 if (corner & BORDER_LEFT)
570 dest_x = old_rect->x + (old_rect->width - con->rect.width);
572 if (corner & BORDER_TOP)
573 dest_y = old_rect->y + (old_rect->height - con->rect.height);
575 con->rect.x = dest_x;
576 con->rect.y = dest_y;
578 /* TODO: don’t re-render the whole tree just because we change
579 * coordinates of a floating window */
581 x_push_changes(croot);
585 * Called when the user clicked on a floating window while holding the
586 * floating_modifier and the right mouse button.
587 * Calls the drag_pointer function with the resize_window callback
590 void floating_resize_window(Con *con, const bool proportional,
591 const xcb_button_press_event_t *event) {
592 DLOG("floating_resize_window\n");
594 /* corner saves the nearest corner to the original click. It contains
595 * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
598 if (event->event_x <= (int16_t)(con->rect.width / 2))
599 corner |= BORDER_LEFT;
601 corner |= BORDER_RIGHT;
604 if (event->event_y <= (int16_t)(con->rect.height / 2)) {
605 corner |= BORDER_TOP;
606 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
608 corner |= BORDER_BOTTOM;
609 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
612 struct resize_window_callback_params params = {corner, proportional, event};
614 /* get the initial rect in case of revert/cancel */
615 Rect initial_rect = con->rect;
617 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, cursor, resize_window_callback, ¶ms);
619 /* If the user cancels, undo the resize */
620 if (drag_result == DRAG_REVERT)
621 floating_reposition(con, initial_rect);
623 /* If this is a scratchpad window, don't auto center it from now on. */
624 if (con->scratchpad_state == SCRATCHPAD_FRESH)
625 con->scratchpad_state = SCRATCHPAD_CHANGED;
628 /* Custom data structure used to track dragging-related events. */
632 /* Whether this modal event loop should be exited and with which result. */
633 drag_result_t result;
635 /* The container that is being dragged or resized, or NULL if this is a
636 * drag of the resize handle. */
639 /* The dimensions of con when the loop was started. */
642 /* The callback to invoke after every pointer movement. */
645 /* User data pointer for callback. */
649 static void xcb_drag_check_cb(EV_P_ ev_check *w, int revents) {
650 struct drag_x11_cb *dragloop = (struct drag_x11_cb *)w->data;
651 xcb_motion_notify_event_t *last_motion_notify = NULL;
652 xcb_generic_event_t *event;
654 while ((event = xcb_poll_for_event(conn)) != NULL) {
655 if (event->response_type == 0) {
656 xcb_generic_error_t *error = (xcb_generic_error_t *)event;
657 DLOG("X11 Error received (probably harmless)! sequence 0x%x, error_code = %d\n",
658 error->sequence, error->error_code);
663 /* Strip off the highest bit (set if the event is generated) */
664 int type = (event->response_type & 0x7F);
667 case XCB_BUTTON_RELEASE:
668 dragloop->result = DRAG_SUCCESS;
672 DLOG("A key was pressed during drag, reverting changes.\n");
673 dragloop->result = DRAG_REVERT;
674 handle_event(type, event);
677 case XCB_UNMAP_NOTIFY: {
678 xcb_unmap_notify_event_t *unmap_event = (xcb_unmap_notify_event_t *)event;
679 Con *con = con_by_window_id(unmap_event->window);
682 DLOG("UnmapNotify for window 0x%08x (container %p)\n", unmap_event->window, con);
684 if (con_get_workspace(con) == con_get_workspace(focused)) {
685 DLOG("UnmapNotify for a managed window on the current workspace, aborting\n");
686 dragloop->result = DRAG_ABORT;
690 handle_event(type, event);
694 case XCB_MOTION_NOTIFY:
695 /* motion_notify events are saved for later */
696 FREE(last_motion_notify);
697 last_motion_notify = (xcb_motion_notify_event_t *)event;
701 DLOG("Passing to original handler\n");
702 handle_event(type, event);
706 if (last_motion_notify != (xcb_motion_notify_event_t *)event)
709 if (dragloop->result != DRAGGING)
713 if (last_motion_notify == NULL)
718 &(dragloop->old_rect),
719 last_motion_notify->root_x,
720 last_motion_notify->root_y,
722 free(last_motion_notify);
726 * This function grabs your pointer and keyboard and lets you drag stuff around
727 * (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
728 * be received and the given callback will be called with the parameters
729 * specified (client, border on which the click originally was), the original
730 * rect of the client, the event and the new coordinates (x, y).
733 drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t
735 border_t border, int cursor, callback_t callback, const void *extra) {
736 xcb_cursor_t xcursor = (cursor && xcursor_supported) ? xcursor_get_cursor(cursor) : XCB_NONE;
738 /* Grab the pointer */
739 xcb_grab_pointer_cookie_t cookie;
740 xcb_grab_pointer_reply_t *reply;
741 xcb_generic_error_t *error;
743 cookie = xcb_grab_pointer(conn,
744 false, /* get all pointer events specified by the following mask */
745 root, /* grab the root window */
746 XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
747 XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
748 XCB_GRAB_MODE_ASYNC, /* keyboard mode */
749 confine_to, /* confine_to = in which window should the cursor stay */
750 xcursor, /* possibly display a special cursor */
753 if ((reply = xcb_grab_pointer_reply(conn, cookie, &error)) == NULL) {
754 ELOG("Could not grab pointer (error_code = %d)\n", error->error_code);
761 /* Grab the keyboard */
762 xcb_grab_keyboard_cookie_t keyb_cookie;
763 xcb_grab_keyboard_reply_t *keyb_reply;
765 keyb_cookie = xcb_grab_keyboard(conn,
766 false, /* get all keyboard events */
767 root, /* grab the root window */
769 XCB_GRAB_MODE_ASYNC, /* continue processing pointer events as normal */
770 XCB_GRAB_MODE_ASYNC /* keyboard mode */
773 if ((keyb_reply = xcb_grab_keyboard_reply(conn, keyb_cookie, &error)) == NULL) {
774 ELOG("Could not grab keyboard (error_code = %d)\n", error->error_code);
776 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
782 /* Go into our own event loop */
783 struct drag_x11_cb loop = {
786 .callback = callback,
789 ev_check *check = &loop.check;
791 loop.old_rect = con->rect;
792 ev_check_init(check, xcb_drag_check_cb);
794 main_set_x11_cb(false);
795 ev_check_start(main_loop, check);
797 while (loop.result == DRAGGING)
798 ev_run(main_loop, EVRUN_ONCE);
800 ev_check_stop(main_loop, check);
801 main_set_x11_cb(true);
803 xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
804 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
811 * Repositions the CT_FLOATING_CON to have the coordinates specified by
812 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
813 * the floating con to a different workspace if this move was across different
817 void floating_reposition(Con *con, Rect newrect) {
818 /* Sanity check: Are the new coordinates on any output? If not, we
819 * ignore that request. */
820 if (!contained_by_output(newrect)) {
821 ELOG("No output found at destination coordinates. Not repositioning.\n");
827 floating_maybe_reassign_ws(con);
829 /* If this is a scratchpad window, don't auto center it from now on. */
830 if (con->scratchpad_state == SCRATCHPAD_FRESH)
831 con->scratchpad_state = SCRATCHPAD_CHANGED;
837 * Sets size of the CT_FLOATING_CON to specified dimensions. Might limit the
838 * actual size with regard to size constraints taken from user settings.
839 * Additionally, the dimensions may be upscaled until they're divisible by the
840 * window's size hints.
843 void floating_resize(Con *floating_con, int x, int y) {
844 DLOG("floating resize to %dx%d px\n", x, y);
845 Rect *rect = &floating_con->rect;
846 Con *focused_con = con_descend_focused(floating_con);
847 if (focused_con->window == NULL) {
848 DLOG("No window is focused. Not resizing.\n");
851 int wi = focused_con->window->width_increment;
852 int hi = focused_con->window->height_increment;
856 rect->width += (wi - 1 - rect->width) % wi;
858 rect->height += (hi - 1 - rect->height) % hi;
860 floating_check_size(floating_con);
862 /* If this is a scratchpad window, don't auto center it from now on. */
863 if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
864 floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
868 * Fixes the coordinates of the floating window whenever the window gets
869 * reassigned to a different output (or when the output’s rect changes).
872 void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
873 DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
874 con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
875 DLOG("old_rect = (%d, %d), %d x %d\n",
876 old_rect->x, old_rect->y, old_rect->width, old_rect->height);
877 DLOG("new_rect = (%d, %d), %d x %d\n",
878 new_rect->x, new_rect->y, new_rect->width, new_rect->height);
879 /* First we get the x/y coordinates relative to the x/y coordinates
880 * of the output on which the window is on */
881 int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
882 int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
883 /* Then we calculate a fraction, for example 0.63 for a window
884 * which is at y = 1212 of a 1920 px high output */
885 DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
886 rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
887 old_rect->width, old_rect->height);
888 /* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
889 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);
890 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);
891 DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);