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.
14 extern xcb_connection_t *conn;
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 * Called when a floating window is created or resized.
36 * This function resizes the window if its size is higher or lower than the
37 * configured maximum/minimum size, respectively.
40 void floating_check_size(Con *floating_con) {
41 /* Define reasonable minimal and maximal sizes for floating windows */
42 const int floating_sane_min_height = 50;
43 const int floating_sane_min_width = 75;
44 Rect floating_sane_max_dimensions;
45 Con *focused_con = con_descend_focused(floating_con);
47 /* obey size increments */
48 if (focused_con->window != NULL && (focused_con->window->height_increment || focused_con->window->width_increment)) {
49 Rect border_rect = con_border_style_rect(focused_con);
51 /* We have to do the opposite calculations that render_con() do
52 * to get the exact size we want. */
53 border_rect.width = -border_rect.width;
54 border_rect.width += 2 * focused_con->border_width;
55 border_rect.height = -border_rect.height;
56 border_rect.height += 2 * focused_con->border_width;
57 if (con_border_style(focused_con) == BS_NORMAL)
58 border_rect.height += render_deco_height();
60 if (focused_con->window->height_increment &&
61 floating_con->rect.height >= focused_con->window->base_height + border_rect.height) {
62 floating_con->rect.height -= focused_con->window->base_height + border_rect.height;
63 floating_con->rect.height -= floating_con->rect.height % focused_con->window->height_increment;
64 floating_con->rect.height += focused_con->window->base_height + border_rect.height;
67 if (focused_con->window->width_increment &&
68 floating_con->rect.width >= focused_con->window->base_width + border_rect.width) {
69 floating_con->rect.width -= focused_con->window->base_width + border_rect.width;
70 floating_con->rect.width -= floating_con->rect.width % focused_con->window->width_increment;
71 floating_con->rect.width += focused_con->window->base_width + border_rect.width;
75 /* Unless user requests otherwise (-1), ensure width/height do not exceed
76 * configured maxima or, if unconfigured, limit to combined width of all
78 if (config.floating_minimum_height != -1) {
79 if (config.floating_minimum_height == 0)
80 floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
82 floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
84 if (config.floating_minimum_width != -1) {
85 if (config.floating_minimum_width == 0)
86 floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
88 floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
91 /* Unless user requests otherwise (-1), raise the width/height to
92 * reasonable minimum dimensions */
93 floating_sane_max_dimensions = total_outputs_dimensions();
94 if (config.floating_maximum_height != -1) {
95 if (config.floating_maximum_height == 0)
96 floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
98 floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
100 if (config.floating_maximum_width != -1) {
101 if (config.floating_maximum_width == 0)
102 floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
104 floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
108 void floating_enable(Con *con, bool automatic) {
109 bool set_focus = (con == focused);
111 if (con->parent && con->parent->type == CT_DOCKAREA) {
112 LOG("Container is a dock window, not enabling floating mode.\n");
116 if (con_is_floating(con)) {
117 LOG("Container is already in floating mode, not doing anything.\n");
121 /* 1: If the container is a workspace container, we need to create a new
122 * split-container with the same layout and make that one floating. We
123 * cannot touch the workspace container itself because floating containers
124 * are children of the workspace. */
125 if (con->type == CT_WORKSPACE) {
126 LOG("This is a workspace, creating new container around content\n");
127 if (con_num_children(con) == 0) {
128 LOG("Workspace is empty, aborting\n");
131 /* TODO: refactor this with src/con.c:con_set_layout */
132 Con *new = con_new(NULL, NULL);
134 new->layout = con->layout;
136 /* since the new container will be set into floating mode directly
137 * afterwards, we need to copy the workspace rect. */
138 memcpy(&(new->rect), &(con->rect), sizeof(Rect));
140 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
141 if (old_focused == TAILQ_END(&(con->focus_head)))
144 /* 4: move the existing cons of this workspace below the new con */
145 DLOG("Moving cons\n");
147 while (!TAILQ_EMPTY(&(con->nodes_head))) {
148 child = TAILQ_FIRST(&(con->nodes_head));
150 con_attach(child, new, true);
153 /* 4: attach the new split container to the workspace */
154 DLOG("Attaching new split to ws\n");
155 con_attach(new, con, false);
158 con_focus(old_focused);
164 /* 1: detach the container from its parent */
165 /* TODO: refactor this with tree_close() */
166 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
167 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
169 con_fix_percent(con->parent);
171 /* 2: create a new container to render the decoration on, add
172 * it as a floating window to the workspace */
173 Con *nc = con_new(NULL, NULL);
174 /* we need to set the parent afterwards instead of passing it as an
175 * argument to con_new() because nc would be inserted into the tiling layer
177 Con *ws = con_get_workspace(con);
179 nc->type = CT_FLOATING_CON;
180 nc->layout = L_SPLITH;
181 /* We insert nc already, even though its rect is not yet calculated. This
182 * is necessary because otherwise the workspace might be empty (and get
183 * closed in tree_close()) even though it’s not. */
184 TAILQ_INSERT_TAIL(&(ws->floating_head), nc, floating_windows);
185 TAILQ_INSERT_TAIL(&(ws->focus_head), nc, focused);
187 /* check if the parent container is empty and close it if so */
188 if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
189 con_num_children(con->parent) == 0) {
190 DLOG("Old container empty after setting this child to floating, closing\n");
191 tree_close(con->parent, DONT_KILL_WINDOW, false, false);
195 sasprintf(&name, "[i3 con] floatingcon around %p", con);
196 x_set_name(nc, name);
199 /* find the height for the decorations */
200 int deco_height = render_deco_height();
202 DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
203 DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
204 Rect zero = {0, 0, 0, 0};
205 nc->rect = con->geometry;
206 /* If the geometry was not set (split containers), we need to determine a
207 * sensible one by combining the geometry of all children */
208 if (memcmp(&(nc->rect), &zero, sizeof(Rect)) == 0) {
209 DLOG("Geometry not set, combining children\n");
211 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
212 DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
213 nc->rect.width += child->geometry.width;
214 nc->rect.height = max(nc->rect.height, child->geometry.height);
218 floating_check_size(nc);
220 /* 3: attach the child to the new parent container. We need to do this
221 * because con_border_style_rect() needs to access con->parent. */
224 con->floating = FLOATING_USER_ON;
226 /* 4: set the border style as specified with new_float */
228 con->border_style = config.default_floating_border;
230 /* Add pixels for the decoration. */
231 Rect border_style_rect = con_border_style_rect(con);
233 nc->rect.height -= border_style_rect.height;
234 nc->rect.width -= border_style_rect.width;
236 /* Add some more pixels for the title bar */
237 if (con_border_style(con) == BS_NORMAL)
238 nc->rect.height += deco_height;
240 /* Honor the X11 border */
241 nc->rect.height += con->border_width * 2;
242 nc->rect.width += con->border_width * 2;
244 /* Some clients (like GIMP’s color picker window) get mapped
245 * to (0, 0), so we push them to a reasonable position
246 * (centered over their leader) */
247 if (nc->rect.x == 0 && nc->rect.y == 0) {
249 if (con->window && con->window->leader != XCB_NONE &&
250 (leader = con_by_window_id(con->window->leader)) != NULL) {
251 DLOG("Centering above leader\n");
252 floating_center(nc, leader->rect);
254 /* center the window on workspace as fallback */
255 floating_center(nc, ws->rect);
259 /* Sanity check: Are the coordinates on the appropriate output? If not, we
260 * need to change them */
261 Output *current_output = get_output_containing(nc->rect.x +
262 (nc->rect.width / 2),
263 nc->rect.y + (nc->rect.height / 2));
265 Con *correct_output = con_get_output(ws);
266 if (!current_output || current_output->con != correct_output) {
267 DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
268 nc->rect.x, nc->rect.y);
270 /* If moving from one output to another, keep the relative position
271 * consistent (e.g. a centered dialog will remain centered). */
273 floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
275 nc->rect.x = correct_output->rect.x;
276 nc->rect.y = correct_output->rect.y;
280 DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
282 /* 5: Subtract the deco_height in order to make the floating window appear
283 * at precisely the position it specified in its original geometry (which
284 * is what applications might remember). */
285 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
286 nc->rect.y -= deco_height;
288 DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
290 TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
291 TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
293 /* render the cons to get initial window_rect correct */
294 render_con(nc, false);
295 render_con(con, false);
300 /* Check if we need to re-assign it to a different workspace because of its
301 * coordinates and exit if that was done successfully. */
302 if (floating_maybe_reassign_ws(nc)) {
303 ipc_send_window_event("floating", con);
307 /* Sanitize coordinates: Check if they are on any output */
308 if (get_output_containing(nc->rect.x, nc->rect.y) != NULL) {
309 ipc_send_window_event("floating", con);
313 ELOG("No output found at destination coordinates, centering floating window on current ws\n");
314 floating_center(nc, ws->rect);
316 ipc_send_window_event("floating", con);
319 void floating_disable(Con *con, bool automatic) {
320 if (!con_is_floating(con)) {
321 LOG("Container isn't floating, not doing anything.\n");
325 const bool set_focus = (con == focused);
327 Con *ws = con_get_workspace(con);
329 /* 1: detach from parent container */
330 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
331 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
333 /* 2: kill parent container */
334 TAILQ_REMOVE(&(con->parent->parent->floating_head), con->parent, floating_windows);
335 TAILQ_REMOVE(&(con->parent->parent->focus_head), con->parent, focused);
336 tree_close(con->parent, DONT_KILL_WINDOW, true, false);
338 /* 3: re-attach to the parent of the currently focused con on the workspace
339 * this floating con was on */
340 Con *focused = con_descend_tiling_focused(ws);
342 /* if there is no other container on this workspace, focused will be the
343 * workspace itself */
344 if (focused->type == CT_WORKSPACE)
345 con->parent = focused;
347 con->parent = focused->parent;
349 /* con_fix_percent will adjust the percent value */
352 con->floating = FLOATING_USER_OFF;
354 con_attach(con, con->parent, false);
356 con_fix_percent(con->parent);
361 ipc_send_window_event("floating", con);
365 * Toggles floating mode for the given container.
367 * If the automatic flag is set to true, this was an automatic update by a change of the
368 * window class from the application which can be overwritten by the user.
371 void toggle_floating_mode(Con *con, bool automatic) {
372 /* see if the client is already floating */
373 if (con_is_floating(con)) {
374 LOG("already floating, re-setting to tiling\n");
376 floating_disable(con, automatic);
380 floating_enable(con, automatic);
384 * Raises the given container in the list of floating containers
387 void floating_raise_con(Con *con) {
388 DLOG("Raising floating con %p / %s\n", con, con->name);
389 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
390 TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
394 * Checks if con’s coordinates are within its workspace and re-assigns it to
395 * the actual workspace if not.
398 bool floating_maybe_reassign_ws(Con *con) {
399 Output *output = get_output_containing(
400 con->rect.x + (con->rect.width / 2),
401 con->rect.y + (con->rect.height / 2));
404 ELOG("No output found at destination coordinates?\n");
408 if (con_get_output(con) == output->con) {
409 DLOG("still the same ws\n");
413 DLOG("Need to re-assign!\n");
415 Con *content = output_get_content(output->con);
416 Con *ws = TAILQ_FIRST(&(content->focus_head));
417 DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
418 con_move_to_workspace(con, ws, false, true, false);
419 con_focus(con_descend_focused(con));
424 * Centers a floating con above the specified rect.
427 void floating_center(Con *con, Rect rect) {
428 con->rect.x = rect.x + (rect.width / 2) - (con->rect.width / 2);
429 con->rect.y = rect.y + (rect.height / 2) - (con->rect.height / 2);
433 * Moves the given floating con to the current pointer position.
436 void floating_move_to_pointer(Con *con) {
437 assert(con->type == CT_FLOATING_CON);
439 xcb_query_pointer_reply_t *reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
441 ELOG("could not query pointer position, not moving this container\n");
445 Output *output = get_output_containing(reply->root_x, reply->root_y);
446 if (output == NULL) {
447 ELOG("The pointer is not on any output, cannot move the container here.\n");
451 /* Determine where to put the window. */
452 int32_t x = reply->root_x - con->rect.width / 2;
453 int32_t y = reply->root_y - con->rect.height / 2;
456 /* Correct target coordinates to be in-bounds. */
457 x = MAX(x, (int32_t)output->rect.x);
458 y = MAX(y, (int32_t)output->rect.y);
459 if (x + con->rect.width > output->rect.x + output->rect.width)
460 x = output->rect.x + output->rect.width - con->rect.width;
461 if (y + con->rect.height > output->rect.y + output->rect.height)
462 y = output->rect.y + output->rect.height - con->rect.height;
464 /* Update container's coordinates to position it correctly. */
465 floating_reposition(con, (Rect){x, y, con->rect.width, con->rect.height});
468 DRAGGING_CB(drag_window_callback) {
469 const struct xcb_button_press_event_t *event = extra;
471 /* Reposition the client correctly while moving */
472 con->rect.x = old_rect->x + (new_x - event->root_x);
473 con->rect.y = old_rect->y + (new_y - event->root_y);
475 render_con(con, false);
479 /* Check if we cross workspace boundaries while moving */
480 if (!floating_maybe_reassign_ws(con))
482 /* Ensure not to warp the pointer while dragging */
488 * Called when the user clicked on the titlebar of a floating window.
489 * Calls the drag_pointer function with the drag_window callback
492 void floating_drag_window(Con *con, const xcb_button_press_event_t *event) {
493 DLOG("floating_drag_window\n");
495 /* Push changes before dragging, so that the window gets raised now and not
496 * after the user releases the mouse button */
499 /* Store the initial rect in case of user revert/cancel */
500 Rect initial_rect = con->rect;
502 /* Drag the window */
503 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, XCURSOR_CURSOR_MOVE, drag_window_callback, event);
505 /* If the user cancelled, undo the changes. */
506 if (drag_result == DRAG_REVERT)
507 floating_reposition(con, initial_rect);
509 /* If this is a scratchpad window, don't auto center it from now on. */
510 if (con->scratchpad_state == SCRATCHPAD_FRESH)
511 con->scratchpad_state = SCRATCHPAD_CHANGED;
517 * This is an ugly data structure which we need because there is no standard
518 * way of having nested functions (only available as a gcc extension at the
519 * moment, clang doesn’t support it) or blocks (only available as a clang
520 * extension and only on Mac OS X systems at the moment).
523 struct resize_window_callback_params {
524 const border_t corner;
525 const bool proportional;
526 const xcb_button_press_event_t *event;
529 DRAGGING_CB(resize_window_callback) {
530 const struct resize_window_callback_params *params = extra;
531 const xcb_button_press_event_t *event = params->event;
532 border_t corner = params->corner;
534 int32_t dest_x = con->rect.x;
535 int32_t dest_y = con->rect.y;
537 uint32_t dest_height;
539 double ratio = (double)old_rect->width / old_rect->height;
541 /* First guess: We resize by exactly the amount the mouse moved,
542 * taking into account in which corner the client was grabbed */
543 if (corner & BORDER_LEFT)
544 dest_width = old_rect->width - (new_x - event->root_x);
546 dest_width = old_rect->width + (new_x - event->root_x);
548 if (corner & BORDER_TOP)
549 dest_height = old_rect->height - (new_y - event->root_y);
551 dest_height = old_rect->height + (new_y - event->root_y);
553 /* User wants to keep proportions, so we may have to adjust our values */
554 if (params->proportional) {
555 dest_width = max(dest_width, (int)(dest_height * ratio));
556 dest_height = max(dest_height, (int)(dest_width / ratio));
559 con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
561 /* Obey window size */
562 floating_check_size(con);
564 /* If not the lower right corner is grabbed, we must also reposition
565 * the client by exactly the amount we resized it */
566 if (corner & BORDER_LEFT)
567 dest_x = old_rect->x + (old_rect->width - con->rect.width);
569 if (corner & BORDER_TOP)
570 dest_y = old_rect->y + (old_rect->height - con->rect.height);
572 con->rect.x = dest_x;
573 con->rect.y = dest_y;
575 /* TODO: don’t re-render the whole tree just because we change
576 * coordinates of a floating window */
578 x_push_changes(croot);
582 * Called when the user clicked on a floating window while holding the
583 * floating_modifier and the right mouse button.
584 * Calls the drag_pointer function with the resize_window callback
587 void floating_resize_window(Con *con, const bool proportional,
588 const xcb_button_press_event_t *event) {
589 DLOG("floating_resize_window\n");
591 /* corner saves the nearest corner to the original click. It contains
592 * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
595 if (event->event_x <= (int16_t)(con->rect.width / 2))
596 corner |= BORDER_LEFT;
598 corner |= BORDER_RIGHT;
601 if (event->event_y <= (int16_t)(con->rect.height / 2)) {
602 corner |= BORDER_TOP;
603 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
605 corner |= BORDER_BOTTOM;
606 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
609 struct resize_window_callback_params params = {corner, proportional, event};
611 /* get the initial rect in case of revert/cancel */
612 Rect initial_rect = con->rect;
614 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, cursor, resize_window_callback, ¶ms);
616 /* If the user cancels, undo the resize */
617 if (drag_result == DRAG_REVERT)
618 floating_reposition(con, initial_rect);
620 /* If this is a scratchpad window, don't auto center it from now on. */
621 if (con->scratchpad_state == SCRATCHPAD_FRESH)
622 con->scratchpad_state = SCRATCHPAD_CHANGED;
625 /* As endorsed by “ASSOCIATING CUSTOM DATA WITH A WATCHER” in ev(3) */
629 /* Whether this modal event loop should be exited and with which result. */
630 drag_result_t result;
632 /* The container that is being dragged or resized, or NULL if this is a
633 * drag of the resize handle. */
636 /* The dimensions of con when the loop was started. */
639 /* The callback to invoke after every pointer movement. */
642 /* User data pointer for callback. */
646 static void xcb_drag_check_cb(EV_P_ ev_check *w, int revents) {
647 struct drag_x11_cb *dragloop = (struct drag_x11_cb *)w;
648 xcb_motion_notify_event_t *last_motion_notify = NULL;
649 xcb_generic_event_t *event;
651 while ((event = xcb_poll_for_event(conn)) != NULL) {
652 if (event->response_type == 0) {
653 xcb_generic_error_t *error = (xcb_generic_error_t *)event;
654 DLOG("X11 Error received (probably harmless)! sequence 0x%x, error_code = %d\n",
655 error->sequence, error->error_code);
660 /* Strip off the highest bit (set if the event is generated) */
661 int type = (event->response_type & 0x7F);
664 case XCB_BUTTON_RELEASE:
665 dragloop->result = DRAG_SUCCESS;
669 DLOG("A key was pressed during drag, reverting changes.\n");
670 dragloop->result = DRAG_REVERT;
671 handle_event(type, event);
674 case XCB_UNMAP_NOTIFY: {
675 xcb_unmap_notify_event_t *unmap_event = (xcb_unmap_notify_event_t *)event;
676 Con *con = con_by_window_id(unmap_event->window);
679 DLOG("UnmapNotify for window 0x%08x (container %p)\n", unmap_event->window, con);
681 if (con_get_workspace(con) == con_get_workspace(focused)) {
682 DLOG("UnmapNotify for a managed window on the current workspace, aborting\n");
683 dragloop->result = DRAG_ABORT;
687 handle_event(type, event);
691 case XCB_MOTION_NOTIFY:
692 /* motion_notify events are saved for later */
693 FREE(last_motion_notify);
694 last_motion_notify = (xcb_motion_notify_event_t *)event;
698 DLOG("Passing to original handler\n");
699 handle_event(type, event);
703 if (last_motion_notify != (xcb_motion_notify_event_t *)event)
706 if (dragloop->result != DRAGGING)
710 if (last_motion_notify == NULL)
715 &(dragloop->old_rect),
716 last_motion_notify->root_x,
717 last_motion_notify->root_y,
719 free(last_motion_notify);
723 * This function grabs your pointer and keyboard and lets you drag stuff around
724 * (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
725 * be received and the given callback will be called with the parameters
726 * specified (client, border on which the click originally was), the original
727 * rect of the client, the event and the new coordinates (x, y).
730 drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t
732 border_t border, int cursor, callback_t callback, const void *extra) {
733 xcb_cursor_t xcursor = (cursor && xcursor_supported) ? xcursor_get_cursor(cursor) : XCB_NONE;
735 /* Grab the pointer */
736 xcb_grab_pointer_cookie_t cookie;
737 xcb_grab_pointer_reply_t *reply;
738 xcb_generic_error_t *error;
740 cookie = xcb_grab_pointer(conn,
741 false, /* get all pointer events specified by the following mask */
742 root, /* grab the root window */
743 XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
744 XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
745 XCB_GRAB_MODE_ASYNC, /* keyboard mode */
746 confine_to, /* confine_to = in which window should the cursor stay */
747 xcursor, /* possibly display a special cursor */
750 if ((reply = xcb_grab_pointer_reply(conn, cookie, &error)) == NULL) {
751 ELOG("Could not grab pointer (error_code = %d)\n", error->error_code);
758 /* Grab the keyboard */
759 xcb_grab_keyboard_cookie_t keyb_cookie;
760 xcb_grab_keyboard_reply_t *keyb_reply;
762 keyb_cookie = xcb_grab_keyboard(conn,
763 false, /* get all keyboard events */
764 root, /* grab the root window */
766 XCB_GRAB_MODE_ASYNC, /* continue processing pointer events as normal */
767 XCB_GRAB_MODE_ASYNC /* keyboard mode */
770 if ((keyb_reply = xcb_grab_keyboard_reply(conn, keyb_cookie, &error)) == NULL) {
771 ELOG("Could not grab keyboard (error_code = %d)\n", error->error_code);
773 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
779 /* Go into our own event loop */
780 struct drag_x11_cb loop = {
783 .callback = callback,
787 loop.old_rect = con->rect;
788 ev_check_init(&loop.check, xcb_drag_check_cb);
789 main_set_x11_cb(false);
790 ev_check_start(main_loop, &loop.check);
792 while (loop.result == DRAGGING)
793 ev_run(main_loop, EVRUN_ONCE);
795 ev_check_stop(main_loop, &loop.check);
796 main_set_x11_cb(true);
798 xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
799 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
806 * Repositions the CT_FLOATING_CON to have the coordinates specified by
807 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
808 * the floating con to a different workspace if this move was across different
812 void floating_reposition(Con *con, Rect newrect) {
813 /* Sanity check: Are the new coordinates on any output? If not, we
814 * ignore that request. */
815 if (!contained_by_output(newrect)) {
816 ELOG("No output found at destination coordinates. Not repositioning.\n");
822 floating_maybe_reassign_ws(con);
824 /* If this is a scratchpad window, don't auto center it from now on. */
825 if (con->scratchpad_state == SCRATCHPAD_FRESH)
826 con->scratchpad_state = SCRATCHPAD_CHANGED;
832 * Sets size of the CT_FLOATING_CON to specified dimensions. Might limit the
833 * actual size with regard to size constraints taken from user settings.
834 * Additionally, the dimensions may be upscaled until they're divisible by the
835 * window's size hints.
838 void floating_resize(Con *floating_con, int x, int y) {
839 DLOG("floating resize to %dx%d px\n", x, y);
840 Rect *rect = &floating_con->rect;
841 Con *focused_con = con_descend_focused(floating_con);
842 if (focused_con->window == NULL) {
843 DLOG("No window is focused. Not resizing.\n");
846 int wi = focused_con->window->width_increment;
847 int hi = focused_con->window->height_increment;
851 rect->width += (wi - 1 - rect->width) % wi;
853 rect->height += (hi - 1 - rect->height) % hi;
855 floating_check_size(floating_con);
857 /* If this is a scratchpad window, don't auto center it from now on. */
858 if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
859 floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
863 * Fixes the coordinates of the floating window whenever the window gets
864 * reassigned to a different output (or when the output’s rect changes).
867 void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
868 DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
869 con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
870 DLOG("old_rect = (%d, %d), %d x %d\n",
871 old_rect->x, old_rect->y, old_rect->width, old_rect->height);
872 DLOG("new_rect = (%d, %d), %d x %d\n",
873 new_rect->x, new_rect->y, new_rect->width, new_rect->height);
874 /* First we get the x/y coordinates relative to the x/y coordinates
875 * of the output on which the window is on */
876 int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
877 int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
878 /* Then we calculate a fraction, for example 0.63 for a window
879 * which is at y = 1212 of a 1920 px high output */
880 DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
881 rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
882 old_rect->width, old_rect->height);
883 /* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
884 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);
885 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);
886 DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
891 * Moves the client 10px to the specified direction.
894 void floating_move(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
895 DLOG("floating move\n");
897 Rect destination = currently_focused->rect;
898 Rect *screen = &(currently_focused->workspace->output->rect);
913 /* to make static analyzers happy */
918 /* Prevent windows from vanishing completely */
919 if ((int32_t)(destination.x + destination.width - 5) <= (int32_t)screen->x ||
920 (int32_t)(destination.x + 5) >= (int32_t)(screen->x + screen->width) ||
921 (int32_t)(destination.y + destination.height - 5) <= (int32_t)screen->y ||
922 (int32_t)(destination.y + 5) >= (int32_t)(screen->y + screen->height)) {
923 DLOG("boundary check failed, not moving\n");
927 currently_focused->rect = destination;
928 reposition_client(conn, currently_focused);
930 /* Because reposition_client does not send a faked configure event (only resize does),
931 * we need to initiate that on our own */
932 fake_absolute_configure_notify(conn, currently_focused);
933 /* fake_absolute_configure_notify flushes */
937 * Hides all floating clients (or show them if they are currently hidden) on
938 * the specified workspace.
941 void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace) {
944 workspace->floating_hidden = !workspace->floating_hidden;
945 DLOG("floating_hidden is now: %d\n", workspace->floating_hidden);
946 TAILQ_FOREACH(client, &(workspace->floating_clients), floating_clients) {
947 if (workspace->floating_hidden)
948 client_unmap(conn, client);
949 else client_map(conn, client);
952 /* If we just unmapped all floating windows we should ensure that the focus
953 * is set correctly, that ist, to the first non-floating client in stack */
954 if (workspace->floating_hidden)
955 SLIST_FOREACH(client, &(workspace->focus_stack), focus_clients) {
956 if (client_is_floating(client))
958 set_focus(conn, client, true);