2 #define I3__FILE__ "floating.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009-2011 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) {
22 /* Use Rect to encapsulate dimensions, ignoring x/y */
23 Rect outputs_dimensions = {0, 0, 0, 0};
24 TAILQ_FOREACH(output, &outputs, outputs) {
25 outputs_dimensions.height += output->rect.height;
26 outputs_dimensions.width += output->rect.width;
28 return outputs_dimensions;
32 * Called when a floating window is created or resized.
33 * This function resizes the window if its size is higher or lower than the
34 * configured maximum/minimum size, respectively.
37 void floating_check_size(Con *floating_con) {
38 /* Define reasonable minimal and maximal sizes for floating windows */
39 const int floating_sane_min_height = 50;
40 const int floating_sane_min_width = 75;
41 Rect floating_sane_max_dimensions;
42 Con *focused_con = con_descend_focused(floating_con);
44 /* obey size increments */
45 if (focused_con->height_increment || focused_con->width_increment) {
46 Rect border_rect = con_border_style_rect(focused_con);
48 /* We have to do the opposite calculations that render_con() do
49 * to get the exact size we want. */
50 border_rect.width = -border_rect.width;
51 border_rect.width += 2 * focused_con->border_width;
52 border_rect.height = -border_rect.height;
53 border_rect.height += 2 * focused_con->border_width;
54 if (con_border_style(focused_con) == BS_NORMAL)
55 border_rect.height += render_deco_height();
57 if (focused_con->height_increment &&
58 floating_con->rect.height >= focused_con->base_height + border_rect.height) {
59 floating_con->rect.height -= focused_con->base_height + border_rect.height;
60 floating_con->rect.height -= floating_con->rect.height % focused_con->height_increment;
61 floating_con->rect.height += focused_con->base_height + border_rect.height;
64 if (focused_con->width_increment &&
65 floating_con->rect.width >= focused_con->base_width + border_rect.width) {
66 floating_con->rect.width -= focused_con->base_width + border_rect.width;
67 floating_con->rect.width -= floating_con->rect.width % focused_con->width_increment;
68 floating_con->rect.width += focused_con->base_width + border_rect.width;
72 /* Unless user requests otherwise (-1), ensure width/height do not exceed
73 * configured maxima or, if unconfigured, limit to combined width of all
75 if (config.floating_minimum_height != -1) {
76 if (config.floating_minimum_height == 0)
77 floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
79 floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
81 if (config.floating_minimum_width != -1) {
82 if (config.floating_minimum_width == 0)
83 floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
85 floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
88 /* Unless user requests otherwise (-1), raise the width/height to
89 * reasonable minimum dimensions */
90 floating_sane_max_dimensions = total_outputs_dimensions();
91 if (config.floating_maximum_height != -1) {
92 if (config.floating_maximum_height == 0)
93 floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
95 floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
97 if (config.floating_maximum_width != -1) {
98 if (config.floating_maximum_width == 0)
99 floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
101 floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
105 void floating_enable(Con *con, bool automatic) {
106 bool set_focus = (con == focused);
108 if (con->parent && con->parent->type == CT_DOCKAREA) {
109 LOG("Container is a dock window, not enabling floating mode.\n");
113 if (con_is_floating(con)) {
114 LOG("Container is already in floating mode, not doing anything.\n");
118 /* 1: If the container is a workspace container, we need to create a new
119 * split-container with the same layout and make that one floating. We
120 * cannot touch the workspace container itself because floating containers
121 * are children of the workspace. */
122 if (con->type == CT_WORKSPACE) {
123 LOG("This is a workspace, creating new container around content\n");
124 if (con_num_children(con) == 0) {
125 LOG("Workspace is empty, aborting\n");
128 /* TODO: refactor this with src/con.c:con_set_layout */
129 Con *new = con_new(NULL, NULL);
131 new->layout = con->layout;
133 /* since the new container will be set into floating mode directly
134 * afterwards, we need to copy the workspace rect. */
135 memcpy(&(new->rect), &(con->rect), sizeof(Rect));
137 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
138 if (old_focused == TAILQ_END(&(con->focus_head)))
141 /* 4: move the existing cons of this workspace below the new con */
142 DLOG("Moving cons\n");
144 while (!TAILQ_EMPTY(&(con->nodes_head))) {
145 child = TAILQ_FIRST(&(con->nodes_head));
147 con_attach(child, new, true);
150 /* 4: attach the new split container to the workspace */
151 DLOG("Attaching new split to ws\n");
152 con_attach(new, con, false);
155 con_focus(old_focused);
161 /* 1: detach the container from its parent */
162 /* TODO: refactor this with tree_close() */
163 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
164 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
166 con_fix_percent(con->parent);
168 /* 2: create a new container to render the decoration on, add
169 * it as a floating window to the workspace */
170 Con *nc = con_new(NULL, NULL);
171 /* we need to set the parent afterwards instead of passing it as an
172 * argument to con_new() because nc would be inserted into the tiling layer
174 Con *ws = con_get_workspace(con);
176 nc->type = CT_FLOATING_CON;
177 nc->layout = L_SPLITH;
178 /* We insert nc already, even though its rect is not yet calculated. This
179 * is necessary because otherwise the workspace might be empty (and get
180 * closed in tree_close()) even though it’s not. */
181 TAILQ_INSERT_TAIL(&(ws->floating_head), nc, floating_windows);
182 TAILQ_INSERT_TAIL(&(ws->focus_head), nc, focused);
184 /* check if the parent container is empty and close it if so */
185 if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
186 con_num_children(con->parent) == 0) {
187 DLOG("Old container empty after setting this child to floating, closing\n");
188 tree_close(con->parent, DONT_KILL_WINDOW, false, false);
192 sasprintf(&name, "[i3 con] floatingcon around %p", con);
193 x_set_name(nc, name);
196 /* find the height for the decorations */
197 int deco_height = render_deco_height();
199 DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
200 DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
201 Rect zero = {0, 0, 0, 0};
202 nc->rect = con->geometry;
203 /* If the geometry was not set (split containers), we need to determine a
204 * sensible one by combining the geometry of all children */
205 if (memcmp(&(nc->rect), &zero, sizeof(Rect)) == 0) {
206 DLOG("Geometry not set, combining children\n");
208 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
209 DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
210 nc->rect.width += child->geometry.width;
211 nc->rect.height = max(nc->rect.height, child->geometry.height);
215 floating_check_size(nc);
217 /* 3: attach the child to the new parent container. We need to do this
218 * because con_border_style_rect() needs to access con->parent. */
221 con->floating = FLOATING_USER_ON;
223 /* 4: set the border style as specified with new_float */
225 con->border_style = config.default_floating_border;
227 /* Add pixels for the decoration. */
228 Rect border_style_rect = con_border_style_rect(con);
230 nc->rect.height -= border_style_rect.height;
231 nc->rect.width -= border_style_rect.width;
233 /* Add some more pixels for the title bar */
234 if (con_border_style(con) == BS_NORMAL)
235 nc->rect.height += deco_height;
237 /* Honor the X11 border */
238 nc->rect.height += con->border_width * 2;
239 nc->rect.width += con->border_width * 2;
241 /* Some clients (like GIMP’s color picker window) get mapped
242 * to (0, 0), so we push them to a reasonable position
243 * (centered over their leader) */
244 if (nc->rect.x == 0 && nc->rect.y == 0) {
246 if (con->window && con->window->leader != XCB_NONE &&
247 (leader = con_by_window_id(con->window->leader)) != NULL) {
248 DLOG("Centering above leader\n");
249 nc->rect.x = leader->rect.x + (leader->rect.width / 2) - (nc->rect.width / 2);
250 nc->rect.y = leader->rect.y + (leader->rect.height / 2) - (nc->rect.height / 2);
252 /* center the window on workspace as fallback */
253 nc->rect.x = ws->rect.x + (ws->rect.width / 2) - (nc->rect.width / 2);
254 nc->rect.y = ws->rect.y + (ws->rect.height / 2) - (nc->rect.height / 2);
258 /* Sanity check: Are the coordinates on the appropriate output? If not, we
259 * need to change them */
260 Output *current_output = get_output_containing(nc->rect.x +
261 (nc->rect.width / 2),
262 nc->rect.y + (nc->rect.height / 2));
264 Con *correct_output = con_get_output(ws);
265 if (!current_output || current_output->con != correct_output) {
266 DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
267 nc->rect.x, nc->rect.y);
269 /* If moving from one output to another, keep the relative position
270 * consistent (e.g. a centered dialog will remain centered). */
272 floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
274 nc->rect.x = correct_output->rect.x;
275 nc->rect.y = correct_output->rect.y;
279 DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
281 /* 5: Subtract the deco_height in order to make the floating window appear
282 * at precisely the position it specified in its original geometry (which
283 * is what applications might remember). */
284 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
285 nc->rect.y -= deco_height;
287 DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
289 TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
290 TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
292 /* render the cons to get initial window_rect correct */
293 render_con(nc, false);
294 render_con(con, false);
299 /* Check if we need to re-assign it to a different workspace because of its
300 * coordinates and exit if that was done successfully. */
301 if (floating_maybe_reassign_ws(nc)) {
302 ipc_send_window_event("floating", con);
306 /* Sanitize coordinates: Check if they are on any output */
307 if (get_output_containing(nc->rect.x, nc->rect.y) != NULL) {
308 ipc_send_window_event("floating", con);
312 ELOG("No output found at destination coordinates, centering floating window on current ws\n");
313 nc->rect.x = ws->rect.x + (ws->rect.width / 2) - (nc->rect.width / 2);
314 nc->rect.y = ws->rect.y + (ws->rect.height / 2) - (nc->rect.height / 2);
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);
419 con_focus(con_descend_focused(con));
423 DRAGGING_CB(drag_window_callback) {
424 const struct xcb_button_press_event_t *event = extra;
426 /* Reposition the client correctly while moving */
427 con->rect.x = old_rect->x + (new_x - event->root_x);
428 con->rect.y = old_rect->y + (new_y - event->root_y);
430 render_con(con, false);
434 /* Check if we cross workspace boundaries while moving */
435 if (!floating_maybe_reassign_ws(con))
437 /* Ensure not to warp the pointer while dragging */
443 * Called when the user clicked on the titlebar of a floating window.
444 * Calls the drag_pointer function with the drag_window callback
447 void floating_drag_window(Con *con, const xcb_button_press_event_t *event) {
448 DLOG("floating_drag_window\n");
450 /* Push changes before dragging, so that the window gets raised now and not
451 * after the user releases the mouse button */
454 /* Store the initial rect in case of user revert/cancel */
455 Rect initial_rect = con->rect;
457 /* Drag the window */
458 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, XCURSOR_CURSOR_MOVE, drag_window_callback, event);
460 /* If the user cancelled, undo the changes. */
461 if (drag_result == DRAG_REVERT)
462 floating_reposition(con, initial_rect);
464 /* If this is a scratchpad window, don't auto center it from now on. */
465 if (con->scratchpad_state == SCRATCHPAD_FRESH)
466 con->scratchpad_state = SCRATCHPAD_CHANGED;
472 * This is an ugly data structure which we need because there is no standard
473 * way of having nested functions (only available as a gcc extension at the
474 * moment, clang doesn’t support it) or blocks (only available as a clang
475 * extension and only on Mac OS X systems at the moment).
478 struct resize_window_callback_params {
479 const border_t corner;
480 const bool proportional;
481 const xcb_button_press_event_t *event;
484 DRAGGING_CB(resize_window_callback) {
485 const struct resize_window_callback_params *params = extra;
486 const xcb_button_press_event_t *event = params->event;
487 border_t corner = params->corner;
489 int32_t dest_x = con->rect.x;
490 int32_t dest_y = con->rect.y;
492 uint32_t dest_height;
494 double ratio = (double)old_rect->width / old_rect->height;
496 /* First guess: We resize by exactly the amount the mouse moved,
497 * taking into account in which corner the client was grabbed */
498 if (corner & BORDER_LEFT)
499 dest_width = old_rect->width - (new_x - event->root_x);
501 dest_width = old_rect->width + (new_x - event->root_x);
503 if (corner & BORDER_TOP)
504 dest_height = old_rect->height - (new_y - event->root_y);
506 dest_height = old_rect->height + (new_y - event->root_y);
508 /* User wants to keep proportions, so we may have to adjust our values */
509 if (params->proportional) {
510 dest_width = max(dest_width, (int)(dest_height * ratio));
511 dest_height = max(dest_height, (int)(dest_width / ratio));
514 con->rect = (Rect) {dest_x, dest_y, dest_width, dest_height};
516 /* Obey window size */
517 floating_check_size(con);
519 /* If not the lower right corner is grabbed, we must also reposition
520 * the client by exactly the amount we resized it */
521 if (corner & BORDER_LEFT)
522 dest_x = old_rect->x + (old_rect->width - con->rect.width);
524 if (corner & BORDER_TOP)
525 dest_y = old_rect->y + (old_rect->height - con->rect.height);
527 con->rect.x = dest_x;
528 con->rect.y = dest_y;
530 /* TODO: don’t re-render the whole tree just because we change
531 * coordinates of a floating window */
533 x_push_changes(croot);
537 * Called when the user clicked on a floating window while holding the
538 * floating_modifier and the right mouse button.
539 * Calls the drag_pointer function with the resize_window callback
542 void floating_resize_window(Con *con, const bool proportional,
543 const xcb_button_press_event_t *event) {
544 DLOG("floating_resize_window\n");
546 /* corner saves the nearest corner to the original click. It contains
547 * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
550 if (event->event_x <= (int16_t)(con->rect.width / 2))
551 corner |= BORDER_LEFT;
553 corner |= BORDER_RIGHT;
556 if (event->event_y <= (int16_t)(con->rect.height / 2)) {
557 corner |= BORDER_TOP;
558 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
560 corner |= BORDER_BOTTOM;
561 cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
564 struct resize_window_callback_params params = {corner, proportional, event};
566 /* get the initial rect in case of revert/cancel */
567 Rect initial_rect = con->rect;
569 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, cursor, resize_window_callback, ¶ms);
571 /* If the user cancels, undo the resize */
572 if (drag_result == DRAG_REVERT)
573 floating_reposition(con, initial_rect);
575 /* If this is a scratchpad window, don't auto center it from now on. */
576 if (con->scratchpad_state == SCRATCHPAD_FRESH)
577 con->scratchpad_state = SCRATCHPAD_CHANGED;
580 /* As endorsed by “ASSOCIATING CUSTOM DATA WITH A WATCHER” in ev(3) */
584 /* Whether this modal event loop should be exited and with which result. */
585 drag_result_t result;
587 /* The container that is being dragged or resized, or NULL if this is a
588 * drag of the resize handle. */
591 /* The dimensions of con when the loop was started. */
594 /* The callback to invoke after every pointer movement. */
597 /* User data pointer for callback. */
601 static void xcb_drag_check_cb(EV_P_ ev_check *w, int revents) {
602 struct drag_x11_cb *dragloop = (struct drag_x11_cb *)w;
603 xcb_motion_notify_event_t *last_motion_notify = NULL;
604 xcb_generic_event_t *event;
606 while ((event = xcb_poll_for_event(conn)) != NULL) {
607 if (event->response_type == 0) {
608 xcb_generic_error_t *error = (xcb_generic_error_t *)event;
609 DLOG("X11 Error received (probably harmless)! sequence 0x%x, error_code = %d\n",
610 error->sequence, error->error_code);
615 /* Strip off the highest bit (set if the event is generated) */
616 int type = (event->response_type & 0x7F);
619 case XCB_BUTTON_RELEASE:
620 dragloop->result = DRAG_SUCCESS;
624 DLOG("A key was pressed during drag, reverting changes.");
625 dragloop->result = DRAG_REVERT;
626 handle_event(type, event);
629 case XCB_UNMAP_NOTIFY: {
630 xcb_unmap_notify_event_t *unmap_event = (xcb_unmap_notify_event_t *)event;
631 Con *con = con_by_window_id(unmap_event->window);
634 DLOG("UnmapNotify for window 0x%08x (container %p)\n", unmap_event->window, con);
636 if (con_get_workspace(con) == con_get_workspace(focused)) {
637 DLOG("UnmapNotify for a managed window on the current workspace, aborting\n");
638 dragloop->result = DRAG_ABORT;
642 handle_event(type, event);
646 case XCB_MOTION_NOTIFY:
647 /* motion_notify events are saved for later */
648 FREE(last_motion_notify);
649 last_motion_notify = (xcb_motion_notify_event_t *)event;
653 DLOG("Passing to original handler\n");
654 handle_event(type, event);
658 if (last_motion_notify != (xcb_motion_notify_event_t *)event)
661 if (dragloop->result != DRAGGING)
665 if (last_motion_notify == NULL)
670 &(dragloop->old_rect),
671 last_motion_notify->root_x,
672 last_motion_notify->root_y,
674 free(last_motion_notify);
678 * This function grabs your pointer and keyboard and lets you drag stuff around
679 * (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
680 * be received and the given callback will be called with the parameters
681 * specified (client, border on which the click originally was), the original
682 * rect of the client, the event and the new coordinates (x, y).
685 drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t
687 border_t border, int cursor, callback_t callback, const void *extra) {
688 xcb_cursor_t xcursor = (cursor && xcursor_supported) ? xcursor_get_cursor(cursor) : XCB_NONE;
690 /* Grab the pointer */
691 xcb_grab_pointer_cookie_t cookie;
692 xcb_grab_pointer_reply_t *reply;
693 xcb_generic_error_t *error;
695 cookie = xcb_grab_pointer(conn,
696 false, /* get all pointer events specified by the following mask */
697 root, /* grab the root window */
698 XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
699 XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
700 XCB_GRAB_MODE_ASYNC, /* keyboard mode */
701 confine_to, /* confine_to = in which window should the cursor stay */
702 xcursor, /* possibly display a special cursor */
705 if ((reply = xcb_grab_pointer_reply(conn, cookie, &error)) == NULL) {
706 ELOG("Could not grab pointer (error_code = %d)\n", error->error_code);
713 /* Grab the keyboard */
714 xcb_grab_keyboard_cookie_t keyb_cookie;
715 xcb_grab_keyboard_reply_t *keyb_reply;
717 keyb_cookie = xcb_grab_keyboard(conn,
718 false, /* get all keyboard events */
719 root, /* grab the root window */
721 XCB_GRAB_MODE_ASYNC, /* continue processing pointer events as normal */
722 XCB_GRAB_MODE_ASYNC /* keyboard mode */
725 if ((keyb_reply = xcb_grab_keyboard_reply(conn, keyb_cookie, &error)) == NULL) {
726 ELOG("Could not grab keyboard (error_code = %d)\n", error->error_code);
728 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
734 /* Go into our own event loop */
735 struct drag_x11_cb loop = {
738 .callback = callback,
742 loop.old_rect = con->rect;
743 ev_check_init(&loop.check, xcb_drag_check_cb);
744 main_set_x11_cb(false);
745 ev_check_start(main_loop, &loop.check);
747 while (loop.result == DRAGGING)
748 ev_run(main_loop, EVRUN_ONCE);
750 ev_check_stop(main_loop, &loop.check);
751 main_set_x11_cb(true);
753 xcb_ungrab_keyboard(conn, XCB_CURRENT_TIME);
754 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
761 * Repositions the CT_FLOATING_CON to have the coordinates specified by
762 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
763 * the floating con to a different workspace if this move was across different
767 void floating_reposition(Con *con, Rect newrect) {
768 /* Sanity check: Are the new coordinates on any output? If not, we
769 * ignore that request. */
770 if (!contained_by_output(newrect)) {
771 ELOG("No output found at destination coordinates. Not repositioning.\n");
777 floating_maybe_reassign_ws(con);
779 /* If this is a scratchpad window, don't auto center it from now on. */
780 if (con->scratchpad_state == SCRATCHPAD_FRESH)
781 con->scratchpad_state = SCRATCHPAD_CHANGED;
787 * Fixes the coordinates of the floating window whenever the window gets
788 * reassigned to a different output (or when the output’s rect changes).
791 void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
792 DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
793 con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
794 DLOG("old_rect = (%d, %d), %d x %d\n",
795 old_rect->x, old_rect->y, old_rect->width, old_rect->height);
796 DLOG("new_rect = (%d, %d), %d x %d\n",
797 new_rect->x, new_rect->y, new_rect->width, new_rect->height);
798 /* First we get the x/y coordinates relative to the x/y coordinates
799 * of the output on which the window is on */
800 int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
801 int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
802 /* Then we calculate a fraction, for example 0.63 for a window
803 * which is at y = 1212 of a 1920 px high output */
804 DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
805 rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
806 old_rect->width, old_rect->height);
807 /* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
808 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);
809 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);
810 DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
815 * Moves the client 10px to the specified direction.
818 void floating_move(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
819 DLOG("floating move\n");
821 Rect destination = currently_focused->rect;
822 Rect *screen = &(currently_focused->workspace->output->rect);
837 /* to make static analyzers happy */
842 /* Prevent windows from vanishing completely */
843 if ((int32_t)(destination.x + destination.width - 5) <= (int32_t)screen->x ||
844 (int32_t)(destination.x + 5) >= (int32_t)(screen->x + screen->width) ||
845 (int32_t)(destination.y + destination.height - 5) <= (int32_t)screen->y ||
846 (int32_t)(destination.y + 5) >= (int32_t)(screen->y + screen->height)) {
847 DLOG("boundary check failed, not moving\n");
851 currently_focused->rect = destination;
852 reposition_client(conn, currently_focused);
854 /* Because reposition_client does not send a faked configure event (only resize does),
855 * we need to initiate that on our own */
856 fake_absolute_configure_notify(conn, currently_focused);
857 /* fake_absolute_configure_notify flushes */
861 * Hides all floating clients (or show them if they are currently hidden) on
862 * the specified workspace.
865 void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace) {
868 workspace->floating_hidden = !workspace->floating_hidden;
869 DLOG("floating_hidden is now: %d\n", workspace->floating_hidden);
870 TAILQ_FOREACH(client, &(workspace->floating_clients), floating_clients) {
871 if (workspace->floating_hidden)
872 client_unmap(conn, client);
873 else client_map(conn, client);
876 /* If we just unmapped all floating windows we should ensure that the focus
877 * is set correctly, that ist, to the first non-floating client in stack */
878 if (workspace->floating_hidden)
879 SLIST_FOREACH(client, &(workspace->focus_stack), focus_clients) {
880 if (client_is_floating(client))
882 set_focus(conn, client, true);