i3
floating.c
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1/*
2 * vim:ts=4:sw=4:expandtab
3 *
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
6 *
7 * floating.c: Floating windows.
8 *
9 */
10#include "all.h"
11
12#include <math.h>
13
14#ifndef MAX
15#define MAX(x, y) ((x) > (y) ? (x) : (y))
16#endif
17
18/*
19 * Calculates sum of heights and sum of widths of all currently active outputs
20 *
21 */
23 if (TAILQ_EMPTY(&outputs))
24 return (Rect){0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
25
26 Output *output;
27 /* Use Rect to encapsulate dimensions, ignoring x/y */
28 Rect outputs_dimensions = {0, 0, 0, 0};
29 TAILQ_FOREACH (output, &outputs, outputs) {
30 outputs_dimensions.height += output->rect.height;
31 outputs_dimensions.width += output->rect.width;
32 }
33 return outputs_dimensions;
34}
35
36/*
37 * Updates I3_FLOATING_WINDOW by either setting or removing it on the con and
38 * all its children.
39 *
40 */
41static void floating_set_hint_atom(Con *con, bool floating) {
42 if (!con_is_leaf(con)) {
43 Con *child;
44 TAILQ_FOREACH (child, &(con->nodes_head), nodes) {
45 floating_set_hint_atom(child, floating);
46 }
47 }
48
49 if (con->window == NULL) {
50 return;
51 }
52
53 if (floating) {
54 uint32_t val = 1;
55 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
56 A_I3_FLOATING_WINDOW, XCB_ATOM_CARDINAL, 32, 1, &val);
57 } else {
58 xcb_delete_property(conn, con->window->id, A_I3_FLOATING_WINDOW);
59 }
60
61 xcb_flush(conn);
62}
63
64/*
65 * Called when a floating window is created or resized. This function resizes
66 * the window if its size is higher or lower than the configured maximum/minimum
67 * size, respectively or when adjustments are needed to conform to the
68 * configured size increments or aspect ratio limits.
69 *
70 * When prefer_height is true and the window needs to be resized because of the
71 * configured aspect ratio, the width is adjusted first, preserving the previous
72 * height.
73 *
74 */
75void floating_check_size(Con *floating_con, bool prefer_height) {
76 /* Define reasonable minimal and maximal sizes for floating windows */
77 const int floating_sane_min_height = 50;
78 const int floating_sane_min_width = 75;
79 Rect floating_sane_max_dimensions;
80 Con *focused_con = con_descend_focused(floating_con);
81
82 DLOG("deco_rect.height = %d\n", focused_con->deco_rect.height);
83 Rect border_rect = con_border_style_rect(focused_con);
84 /* We have to do the opposite calculations that render_con() do
85 * to get the exact size we want. */
86 border_rect.width = -border_rect.width;
87 border_rect.height = -border_rect.height;
88
89 /* undo x11 border */
90 border_rect.width += 2 * focused_con->border_width;
91 border_rect.height += 2 * focused_con->border_width;
92
93 DLOG("floating_check_size, want min width %d, min height %d, border extra: w=%d, h=%d\n",
94 floating_sane_min_width,
95 floating_sane_min_height,
96 border_rect.width,
97 border_rect.height);
98
99 i3Window *window = focused_con->window;
100 if (window != NULL) {
101 /* ICCCM says: If a base size is not provided, the minimum size is to be used in its place
102 * and vice versa. */
103 int min_width = (window->min_width ? window->min_width : window->base_width);
104 int min_height = (window->min_height ? window->min_height : window->base_height);
105 int base_width = (window->base_width ? window->base_width : window->min_width);
106 int base_height = (window->base_height ? window->base_height : window->min_height);
107
108 if (min_width) {
109 floating_con->rect.width -= border_rect.width;
110 floating_con->rect.width = max(floating_con->rect.width, min_width);
111 floating_con->rect.width += border_rect.width;
112 }
113
114 if (min_height) {
115 floating_con->rect.height -= border_rect.height;
116 floating_con->rect.height = max(floating_con->rect.height, min_height);
117 floating_con->rect.height += border_rect.height;
118 }
119
120 if (window->max_width) {
121 floating_con->rect.width -= border_rect.width;
122 floating_con->rect.width = min(floating_con->rect.width, window->max_width);
123 floating_con->rect.width += border_rect.width;
124 }
125
126 if (window->max_height) {
127 floating_con->rect.height -= border_rect.height;
128 floating_con->rect.height = min(floating_con->rect.height, window->max_height);
129 floating_con->rect.height += border_rect.height;
130 }
131
132 /* Obey the aspect ratio, if any, unless we are in fullscreen mode.
133 *
134 * The spec isn’t explicit on whether the aspect ratio hints should be
135 * respected during fullscreen mode. Other WMs such as Openbox don’t do
136 * that, and this post suggests that this is the correct way to do it:
137 * https://mail.gnome.org/archives/wm-spec-list/2003-May/msg00007.html
138 *
139 * Ignoring aspect ratio during fullscreen was necessary to fix MPlayer
140 * subtitle rendering, see https://bugs.i3wm.org/594 */
141 const double min_ar = window->min_aspect_ratio;
142 const double max_ar = window->max_aspect_ratio;
143 if (floating_con->fullscreen_mode == CF_NONE && (min_ar > 0 || max_ar > 0)) {
144 /* The ICCCM says to subtract the base size from the window size for
145 * aspect ratio calculations. However, unlike determining the base
146 * size itself we must not fall back to using the minimum size in
147 * this case according to the ICCCM. */
148 double width = floating_con->rect.width - window->base_width - border_rect.width;
149 double height = floating_con->rect.height - window->base_height - border_rect.height;
150 const double ar = (double)width / (double)height;
151 double new_ar = -1;
152 if (min_ar > 0 && ar < min_ar) {
153 new_ar = min_ar;
154 } else if (max_ar > 0 && ar > max_ar) {
155 new_ar = max_ar;
156 }
157 if (new_ar > 0) {
158 if (prefer_height) {
159 width = round(height * new_ar);
160 height = round(width / new_ar);
161 } else {
162 height = round(width / new_ar);
163 width = round(height * new_ar);
164 }
165 floating_con->rect.width = width + window->base_width + border_rect.width;
166 floating_con->rect.height = height + window->base_height + border_rect.height;
167 }
168 }
169
170 if (window->height_increment &&
171 floating_con->rect.height >= base_height + border_rect.height) {
172 floating_con->rect.height -= base_height + border_rect.height;
173 floating_con->rect.height -= floating_con->rect.height % window->height_increment;
174 floating_con->rect.height += base_height + border_rect.height;
175 }
176
177 if (window->width_increment &&
178 floating_con->rect.width >= base_width + border_rect.width) {
179 floating_con->rect.width -= base_width + border_rect.width;
180 floating_con->rect.width -= floating_con->rect.width % window->width_increment;
181 floating_con->rect.width += base_width + border_rect.width;
182 }
183 }
184
185 /* Unless user requests otherwise (-1), raise the width/height to
186 * reasonable minimum dimensions */
188 floating_con->rect.height -= border_rect.height;
190 floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
191 } else {
192 floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
193 }
194 floating_con->rect.height += border_rect.height;
195 }
196
197 if (config.floating_minimum_width != -1) {
198 floating_con->rect.width -= border_rect.width;
200 floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
201 } else {
202 floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
203 }
204 floating_con->rect.width += border_rect.width;
205 }
206
207 /* Unless user requests otherwise (-1), ensure width/height do not exceed
208 * configured maxima or, if unconfigured, limit to combined width of all
209 * outputs */
210 floating_sane_max_dimensions = total_outputs_dimensions();
212 floating_con->rect.height -= border_rect.height;
214 floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
215 } else {
216 floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
217 }
218 floating_con->rect.height += border_rect.height;
219 }
220
221 if (config.floating_maximum_width != -1) {
222 floating_con->rect.width -= border_rect.width;
224 floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
225 } else {
226 floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
227 }
228 floating_con->rect.width += border_rect.width;
229 }
230}
231
232bool floating_enable(Con *con, bool automatic) {
233 bool set_focus = (con == focused);
234
235 if (con_is_docked(con)) {
236 LOG("Container is a dock window, not enabling floating mode.\n");
237 return false;
238 }
239
240 if (con_is_floating(con)) {
241 LOG("Container is already in floating mode, not doing anything.\n");
242 return false;
243 }
244
245 if (con->type == CT_WORKSPACE) {
246 LOG("Container is a workspace, not enabling floating mode.\n");
247 return false;
248 }
249
250 Con *focus_head_placeholder = NULL;
251 bool focus_before_parent = true;
252 if (!set_focus) {
253 /* Find recursively the ancestor container which is a child of our workspace.
254 * We need to reuse its focus position later. */
255 Con *ancestor = con;
256 while (ancestor->parent->type != CT_WORKSPACE) {
257 focus_before_parent &= TAILQ_FIRST(&(ancestor->parent->focus_head)) == ancestor;
258 ancestor = ancestor->parent;
259 }
260 /* Consider the part of the focus stack of our current workspace:
261 * [ ... S_{i-1} S_{i} S_{i+1} ... ]
262 * Where S_{x} is a container tree and the container 'con' that is being switched to
263 * floating belongs in S_{i}. The new floating container, 'nc', will have the
264 * workspace as its parent so it needs to be placed in this stack. If C was focused
265 * we just need to call con_focus(). Otherwise, nc must be placed before or after S_{i}.
266 * We should avoid using the S_{i} container for our operations since it might get
267 * killed if it has no other children. So, the two possible positions are after S_{i-1}
268 * or before S_{i+1}.
269 */
270 if (focus_before_parent) {
271 focus_head_placeholder = TAILQ_PREV(ancestor, focus_head, focused);
272 } else {
273 focus_head_placeholder = TAILQ_NEXT(ancestor, focused);
274 }
275 }
276
277 /* 1: detach the container from its parent */
278 /* TODO: refactor this with tree_close_internal() */
279 con_detach(con);
281
282 /* 2: create a new container to render the decoration on, add
283 * it as a floating window to the workspace */
284 Con *nc = con_new(NULL, NULL);
285 /* we need to set the parent afterwards instead of passing it as an
286 * argument to con_new() because nc would be inserted into the tiling layer
287 * otherwise. */
288 Con *ws = con_get_workspace(con);
289 nc->parent = ws;
290 nc->type = CT_FLOATING_CON;
291 nc->layout = L_SPLITH;
292 /* We insert nc already, even though its rect is not yet calculated. This
293 * is necessary because otherwise the workspace might be empty (and get
294 * closed in tree_close_internal()) even though it’s not. */
295 TAILQ_INSERT_HEAD(&(ws->floating_head), nc, floating_windows);
296
297 struct focus_head *fh = &(ws->focus_head);
298 if (focus_before_parent) {
299 if (focus_head_placeholder) {
300 TAILQ_INSERT_AFTER(fh, focus_head_placeholder, nc, focused);
301 } else {
302 TAILQ_INSERT_HEAD(fh, nc, focused);
303 }
304 } else {
305 if (focus_head_placeholder) {
306 TAILQ_INSERT_BEFORE(focus_head_placeholder, nc, focused);
307 } else {
308 /* Also used for the set_focus case */
309 TAILQ_INSERT_TAIL(fh, nc, focused);
310 }
311 }
312
313 /* check if the parent container is empty and close it if so */
314 if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
315 con_num_children(con->parent) == 0) {
316 DLOG("Old container empty after setting this child to floating, closing\n");
317 Con *parent = con->parent;
318 /* clear the pointer before calling tree_close_internal in which the memory is freed */
319 con->parent = NULL;
321 }
322
323 char *name;
324 sasprintf(&name, "[i3 con] floatingcon around %p", con);
325 x_set_name(nc, name);
326 free(name);
327
328 DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
329 DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
330 nc->rect = con->geometry;
331 /* If the geometry was not set (split containers), we need to determine a
332 * sensible one by combining the geometry of all children */
333 if (rect_equals(nc->rect, (Rect){0, 0, 0, 0})) {
334 DLOG("Geometry not set, combining children\n");
335 Con *child;
336 TAILQ_FOREACH (child, &(con->nodes_head), nodes) {
337 DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
338 nc->rect.width += child->geometry.width;
339 nc->rect.height = max(nc->rect.height, child->geometry.height);
340 }
341 }
342
343 TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
344 TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
345
346 /* 3: attach the child to the new parent container. We need to do this
347 * because con_border_style_rect() needs to access con->parent. */
348 con->parent = nc;
349 con->percent = 1.0;
350 con->floating = FLOATING_USER_ON;
351
352 /* 4: set the border style as specified with new_float */
353 if (automatic) {
355 }
356
357 /* Add pixels for the decoration. */
358 Rect bsr = con_border_style_rect(con);
359
360 nc->rect.height -= bsr.height;
361 nc->rect.width -= bsr.width;
362
363 /* Honor the X11 border */
364 nc->rect.height += con->border_width * 2;
365 nc->rect.width += con->border_width * 2;
366
367 floating_check_size(nc, false);
368
369 /* Some clients (like GIMP’s color picker window) get mapped
370 * to (0, 0), so we push them to a reasonable position
371 * (centered over their leader) */
372 if (nc->rect.x == 0 && nc->rect.y == 0) {
373 Con *leader;
374 if (con->window && con->window->leader != XCB_NONE &&
375 con->window->id != con->window->leader &&
376 (leader = con_by_window_id(con->window->leader)) != NULL) {
377 DLOG("Centering above leader\n");
378 floating_center(nc, leader->rect);
379 } else {
380 /* center the window on workspace as fallback */
381 floating_center(nc, ws->rect);
382 }
383 }
384
385 /* Sanity check: Are the coordinates on the appropriate output? If not, we
386 * need to change them */
387 Output *current_output = get_output_from_rect(nc->rect);
388 Con *correct_output = con_get_output(ws);
389 if (!current_output || current_output->con != correct_output) {
390 DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
391 nc->rect.x, nc->rect.y);
392
393 /* If moving from one output to another, keep the relative position
394 * consistent (e.g. a centered dialog will remain centered). */
395 if (current_output) {
396 floating_fix_coordinates(nc, &current_output->con->rect, &correct_output->rect);
397 /* Make sure that the result is in the correct output. */
398 current_output = get_output_from_rect(nc->rect);
399 }
400 if (!current_output || current_output->con != correct_output) {
401 floating_center(nc, ws->rect);
402 }
403 }
404
405 DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
406
407 /* render the cons to get initial window_rect correct */
408 render_con(nc);
409
410 if (set_focus)
411 con_activate(con);
412
413 floating_set_hint_atom(nc, true);
414 ipc_send_window_event("floating", con);
415 return true;
416}
417
419 if (!con_is_floating(con)) {
420 LOG("Container isn't floating, not doing anything.\n");
421 return;
422 }
423
424 Con *ws = con_get_workspace(con);
425 if (con_is_internal(ws)) {
426 LOG("Can't disable floating for container in internal workspace.\n");
427 return;
428 }
429 Con *tiling_focused = con_descend_tiling_focused(ws);
430
431 if (tiling_focused->type == CT_WORKSPACE) {
432 Con *parent = con->parent;
433 con_detach(con);
434 con->parent = NULL;
436 con_attach(con, tiling_focused, false);
437 con->percent = 0.0;
439 } else {
440 insert_con_into(con, tiling_focused, AFTER);
441 }
442
443 con->floating = FLOATING_USER_OFF;
444 floating_set_hint_atom(con, false);
445 ipc_send_window_event("floating", con);
446}
447
448/*
449 * Toggles floating mode for the given container.
450 *
451 * If the automatic flag is set to true, this was an automatic update by a change of the
452 * window class from the application which can be overwritten by the user.
453 *
454 */
455void toggle_floating_mode(Con *con, bool automatic) {
456 /* forbid the command to toggle floating on a CT_FLOATING_CON */
457 if (con->type == CT_FLOATING_CON) {
458 ELOG("Cannot toggle floating mode on con = %p because it is of type CT_FLOATING_CON.\n", con);
459 return;
460 }
461
462 /* see if the client is already floating */
463 if (con_is_floating(con)) {
464 LOG("already floating, re-setting to tiling\n");
465
466 floating_disable(con);
467 return;
468 }
469
470 floating_enable(con, automatic);
471}
472
473/*
474 * Raises the given container in the list of floating containers
475 *
476 */
478 DLOG("Raising floating con %p / %s\n", con, con->name);
479 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
480 TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
481}
482
483/*
484 * Checks if con’s coordinates are within its workspace and re-assigns it to
485 * the actual workspace if not.
486 *
487 */
490 DLOG("Con in an internal workspace\n");
491 return false;
492 }
493
494 Output *output = get_output_from_rect(con->rect);
495
496 if (!output) {
497 ELOG("No output found at destination coordinates?\n");
498 return false;
499 }
500
501 if (con_get_output(con) == output->con) {
502 DLOG("still the same ws\n");
503 return false;
504 }
505
506 DLOG("Need to re-assign!\n");
507
508 Con *content = output_get_content(output->con);
509 Con *ws = TAILQ_FIRST(&(content->focus_head));
510 DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
511 Con *needs_focus = con_descend_focused(con);
512 if (!con_inside_focused(needs_focus)) {
513 needs_focus = NULL;
514 }
515 con_move_to_workspace(con, ws, false, true, false);
516 if (needs_focus) {
517 workspace_show(ws);
518 con_activate(needs_focus);
519 }
520 return true;
521}
522
523/*
524 * Centers a floating con above the specified rect.
525 *
526 */
527void floating_center(Con *con, Rect rect) {
528 con->rect.x = rect.x + (rect.width / 2) - (con->rect.width / 2);
529 con->rect.y = rect.y + (rect.height / 2) - (con->rect.height / 2);
530}
531
532/*
533 * Moves the given floating con to the current pointer position.
534 *
535 */
537 assert(con->type == CT_FLOATING_CON);
538
539 xcb_query_pointer_reply_t *reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
540 if (reply == NULL) {
541 ELOG("could not query pointer position, not moving this container\n");
542 return;
543 }
544
545 Output *output = get_output_containing(reply->root_x, reply->root_y);
546 if (output == NULL) {
547 ELOG("The pointer is not on any output, cannot move the container here.\n");
548 return;
549 }
550
551 /* Determine where to put the window. */
552 int32_t x = reply->root_x - con->rect.width / 2;
553 int32_t y = reply->root_y - con->rect.height / 2;
554 FREE(reply);
555
556 /* Correct target coordinates to be in-bounds. */
557 x = MAX(x, (int32_t)output->rect.x);
558 y = MAX(y, (int32_t)output->rect.y);
559 if (x + con->rect.width > output->rect.x + output->rect.width)
560 x = output->rect.x + output->rect.width - con->rect.width;
561 if (y + con->rect.height > output->rect.y + output->rect.height)
562 y = output->rect.y + output->rect.height - con->rect.height;
563
564 /* Update container's coordinates to position it correctly. */
565 floating_reposition(con, (Rect){x, y, con->rect.width, con->rect.height});
566}
567
568DRAGGING_CB(drag_window_callback) {
569 /* Reposition the client correctly while moving */
570 con->rect.x = old_rect->x + (new_x - event->root_x);
571 con->rect.y = old_rect->y + (new_y - event->root_y);
572
573 render_con(con);
574 x_push_node(con);
575 xcb_flush(conn);
576
577 /* Check if we cross workspace boundaries while moving */
579 return;
580 /* Ensure not to warp the pointer while dragging */
581 x_set_warp_to(NULL);
582 tree_render();
583}
584
585/*
586 * Called when the user clicked on the titlebar of a floating window.
587 * Calls the drag_pointer function with the drag_window callback
588 *
589 */
590void floating_drag_window(Con *con, const xcb_button_press_event_t *event, bool use_threshold) {
591 DLOG("floating_drag_window\n");
592
593 /* Push changes before dragging, so that the window gets raised now and not
594 * after the user releases the mouse button */
595 tree_render();
596
597 /* Store the initial rect in case of user revert/cancel */
598 Rect initial_rect = con->rect;
599
600 /* Drag the window */
601 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, XCURSOR_CURSOR_MOVE, use_threshold, drag_window_callback, NULL);
602
603 if (!con_exists(con)) {
604 DLOG("The container has been closed in the meantime.\n");
605 return;
606 }
607
608 /* If the user cancelled, undo the changes. */
609 if (drag_result == DRAG_REVERT) {
610 floating_reposition(con, initial_rect);
611 return;
612 }
613
614 /* If this is a scratchpad window, don't auto center it from now on. */
615 if (con->scratchpad_state == SCRATCHPAD_FRESH)
616 con->scratchpad_state = SCRATCHPAD_CHANGED;
617
618 tree_render();
619}
620
621/*
622 * This is an ugly data structure which we need because there is no standard
623 * way of having nested functions (only available as a gcc extension at the
624 * moment, clang doesn’t support it) or blocks (only available as a clang
625 * extension and only on Mac OS X systems at the moment).
626 *
627 */
632
633DRAGGING_CB(resize_window_callback) {
634 const struct resize_window_callback_params *params = extra;
635 border_t corner = params->corner;
636
637 int32_t dest_x = con->rect.x;
638 int32_t dest_y = con->rect.y;
639 uint32_t dest_width;
640 uint32_t dest_height;
641
642 double ratio = (double)old_rect->width / old_rect->height;
643
644 /* First guess: We resize by exactly the amount the mouse moved,
645 * taking into account in which corner the client was grabbed */
646 if (corner & BORDER_LEFT)
647 dest_width = old_rect->width - (new_x - event->root_x);
648 else
649 dest_width = old_rect->width + (new_x - event->root_x);
650
651 if (corner & BORDER_TOP)
652 dest_height = old_rect->height - (new_y - event->root_y);
653 else
654 dest_height = old_rect->height + (new_y - event->root_y);
655
656 /* User wants to keep proportions, so we may have to adjust our values */
657 if (params->proportional) {
658 dest_width = max(dest_width, (int)(dest_height * ratio));
659 dest_height = max(dest_height, (int)(dest_width / ratio));
660 }
661
662 con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
663
664 /* Obey window size */
665 floating_check_size(con, false);
666
667 /* If not the lower right corner is grabbed, we must also reposition
668 * the client by exactly the amount we resized it */
669 if (corner & BORDER_LEFT)
670 dest_x = old_rect->x + (old_rect->width - con->rect.width);
671
672 if (corner & BORDER_TOP)
673 dest_y = old_rect->y + (old_rect->height - con->rect.height);
674
675 con->rect.x = dest_x;
676 con->rect.y = dest_y;
677
678 render_con(con);
680}
681
682/*
683 * Called when the user clicked on a floating window while holding the
684 * floating_modifier and the right mouse button.
685 * Calls the drag_pointer function with the resize_window callback
686 *
687 */
689 const xcb_button_press_event_t *event) {
690 DLOG("floating_resize_window\n");
691
692 /* Push changes before resizing, so that the window gets raised now and not
693 * after the user releases the mouse button */
694 tree_render();
695
696 /* corner saves the nearest corner to the original click. It contains
697 * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
698 border_t corner = 0;
699
700 if (event->event_x <= (int16_t)(con->rect.width / 2))
702 else
704
705 int cursor = 0;
706 if (event->event_y <= (int16_t)(con->rect.height / 2)) {
709 } else {
712 }
713
715
716 /* get the initial rect in case of revert/cancel */
717 Rect initial_rect = con->rect;
718
719 drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, cursor, false, resize_window_callback, &params);
720
721 if (!con_exists(con)) {
722 DLOG("The container has been closed in the meantime.\n");
723 return;
724 }
725
726 /* If the user cancels, undo the resize */
727 if (drag_result == DRAG_REVERT)
728 floating_reposition(con, initial_rect);
729
730 /* If this is a scratchpad window, don't auto center it from now on. */
731 if (con->scratchpad_state == SCRATCHPAD_FRESH)
732 con->scratchpad_state = SCRATCHPAD_CHANGED;
733}
734
735/*
736 * Repositions the CT_FLOATING_CON to have the coordinates specified by
737 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
738 * the floating con to a different workspace if this move was across different
739 * outputs.
740 *
741 */
742bool floating_reposition(Con *con, Rect newrect) {
743 /* Sanity check: Are the new coordinates on any output? If not, we
744 * ignore that request. */
745 if (!output_containing_rect(newrect)) {
746 ELOG("No output found at destination coordinates. Not repositioning.\n");
747 return false;
748 }
749
750 con->rect = newrect;
751
753
754 /* If this is a scratchpad window, don't auto center it from now on. */
755 if (con->scratchpad_state == SCRATCHPAD_FRESH)
756 con->scratchpad_state = SCRATCHPAD_CHANGED;
757
758 tree_render();
759 return true;
760}
761
762/*
763 * Sets size of the CT_FLOATING_CON to specified dimensions. Might limit the
764 * actual size with regard to size constraints taken from user settings.
765 * Additionally, the dimensions may be upscaled until they're divisible by the
766 * window's size hints.
767 *
768 */
769void floating_resize(Con *floating_con, uint32_t x, uint32_t y) {
770 DLOG("floating resize to %dx%d px\n", x, y);
771 Rect *rect = &floating_con->rect;
772 Con *focused_con = con_descend_focused(floating_con);
773 if (focused_con->window == NULL) {
774 DLOG("No window is focused. Not resizing.\n");
775 return;
776 }
777 int wi = focused_con->window->width_increment;
778 int hi = focused_con->window->height_increment;
779 bool prefer_height = (rect->width == x);
780 rect->width = x;
781 rect->height = y;
782 if (wi)
783 rect->width += (wi - 1 - rect->width) % wi;
784 if (hi)
785 rect->height += (hi - 1 - rect->height) % hi;
786
787 floating_check_size(floating_con, prefer_height);
788
789 /* If this is a scratchpad window, don't auto center it from now on. */
790 if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
791 floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
792}
793
794/*
795 * Fixes the coordinates of the floating window whenever the window gets
796 * reassigned to a different output (or when the output’s rect changes).
797 *
798 */
799void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
800 DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
801 con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
802 DLOG("old_rect = (%d, %d), %d x %d\n",
803 old_rect->x, old_rect->y, old_rect->width, old_rect->height);
804 DLOG("new_rect = (%d, %d), %d x %d\n",
805 new_rect->x, new_rect->y, new_rect->width, new_rect->height);
806 /* First we get the x/y coordinates relative to the x/y coordinates
807 * of the output on which the window is on */
808 int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
809 int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
810 /* Then we calculate a fraction, for example 0.63 for a window
811 * which is at y = 1212 of a 1920 px high output */
812 DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
813 rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
814 old_rect->width, old_rect->height);
815 /* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
816 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);
817 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);
818 DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
819}
xcb_connection_t * conn
XCB connection and root screen.
Definition main.c:54
xcb_window_t root
Definition main.c:67
xcb_screen_t * root_screen
Definition main.c:66
void ipc_send_window_event(const char *property, Con *con)
For the window events we send, along the usual "change" field, also the window container,...
Definition ipc.c:1634
void x_set_warp_to(Rect *rect)
Set warp_to coordinates.
Definition x.c:1477
void x_set_name(Con *con, const char *name)
Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways) of the given name.
Definition x.c:1429
void x_push_node(Con *con)
This function pushes the properties of each node of the layout tree to X11 if they have changed (like...
Definition x.c:890
void x_push_changes(Con *con)
Pushes all changes (state of each node, see x_push_node() and the window stack) to X11.
Definition x.c:1211
void workspace_show(Con *workspace)
Switches to the given workspace.
Definition workspace.c:428
bool rect_equals(Rect a, Rect b)
Definition util.c:59
int min(int a, int b)
Definition util.c:24
int max(int a, int b)
Definition util.c:28
struct Con * focused
Definition tree.c:13
struct Con * croot
Definition tree.c:12
bool tree_close_internal(Con *con, kill_window_t kill_window, bool dont_kill_parent)
Closes the given container including all children.
Definition tree.c:191
void tree_render(void)
Renders the tree, that is rendering all outputs using render_con() and pushing the changes to X11 usi...
Definition tree.c:451
void render_con(Con *con)
"Renders" the given container (and its children), meaning that all rects are updated correctly.
Definition render.c:42
Output * get_output_from_rect(Rect rect)
Returns the active output which contains the midpoint of the given rect.
Definition randr.c:142
Output * output_containing_rect(Rect rect)
In output_containing_rect, we check if any active output contains part of the container.
Definition randr.c:178
Output * get_output_containing(unsigned int x, unsigned int y)
Returns the active (!) output which contains the coordinates x, y or NULL if there is no output which...
Definition randr.c:121
struct outputs_head outputs
Definition randr.c:22
Con * output_get_content(Con *output)
Returns the output container below the given output container.
Definition output.c:16
void insert_con_into(Con *con, Con *target, position_t position)
This function detaches 'con' from its parent and inserts it either before or after 'target'.
Definition move.c:65
void floating_resize_window(Con *con, const bool proportional, const xcb_button_press_event_t *event)
Called when the user clicked on a floating window while holding the floating_modifier and the right m...
Definition floating.c:688
void floating_check_size(Con *floating_con, bool prefer_height)
Called when a floating window is created or resized.
Definition floating.c:75
void floating_disable(Con *con)
Disables floating mode for the given container by re-attaching the container to its old parent.
Definition floating.c:418
void floating_center(Con *con, Rect rect)
Centers a floating con above the specified rect.
Definition floating.c:527
static Rect total_outputs_dimensions(void)
Definition floating.c:22
static void floating_set_hint_atom(Con *con, bool floating)
Definition floating.c:41
void floating_drag_window(Con *con, const xcb_button_press_event_t *event, bool use_threshold)
Called when the user clicked on the titlebar of a floating window.
Definition floating.c:590
void floating_raise_con(Con *con)
Raises the given container in the list of floating containers.
Definition floating.c:477
void toggle_floating_mode(Con *con, bool automatic)
Calls floating_enable() for tiling containers and floating_disable() for floating containers.
Definition floating.c:455
#define MAX(x, y)
Definition floating.c:15
void floating_resize(Con *floating_con, uint32_t x, uint32_t y)
Sets size of the CT_FLOATING_CON to specified dimensions.
Definition floating.c:769
bool floating_maybe_reassign_ws(Con *con)
Checks if con’s coordinates are within its workspace and re-assigns it to the actual workspace if not...
Definition floating.c:488
void floating_move_to_pointer(Con *con)
Moves the given floating con to the current pointer position.
Definition floating.c:536
void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect)
Fixes the coordinates of the floating window whenever the window gets reassigned to a different outpu...
Definition floating.c:799
bool floating_enable(Con *con, bool automatic)
Enables floating mode for the given container by detaching it from its parent, creating a new contain...
Definition floating.c:232
bool floating_reposition(Con *con, Rect newrect)
Repositions the CT_FLOATING_CON to have the coordinates specified by newrect, but only if the coordin...
Definition floating.c:742
drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event, xcb_window_t confine_to, int cursor, bool use_threshold, callback_t callback, const void *extra)
This function grabs your pointer and keyboard and lets you drag stuff around (borders).
Definition drag.c:175
Config config
Definition config.c:19
void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus)
Moves the given container to the currently focused container on the given workspace.
Definition con.c:1466
bool con_is_floating(Con *con)
Returns true if the node is floating.
Definition con.c:596
Con * con_new(Con *parent, i3Window *window)
A wrapper for con_new_skeleton, to retain the old con_new behaviour.
Definition con.c:69
Con * con_get_workspace(Con *con)
Gets the workspace container this node is on.
Definition con.c:477
Con * con_descend_tiling_focused(Con *con)
Returns the focused con inside this client, descending the tree as far as possible.
Definition con.c:1605
bool con_is_docked(Con *con)
Returns true if the container is a docked container.
Definition con.c:605
Con * con_by_window_id(xcb_window_t window)
Returns the container with the given client window ID or NULL if no such container exists.
Definition con.c:671
Rect con_border_style_rect(Con *con)
Returns a "relative" Rect which contains the amount of pixels that need to be added to the original R...
Definition con.c:1773
bool con_is_internal(Con *con)
Returns true if the container is internal, such as __i3_scratch.
Definition con.c:588
bool con_exists(Con *con)
Returns true if the given container (still) exists.
Definition con.c:702
void con_detach(Con *con)
Detaches the given container from its current parent.
Definition con.c:230
void con_fix_percent(Con *con)
Updates the percent attribute of the children of the given container.
Definition con.c:1047
void con_attach(Con *con, Con *parent, bool ignore_focus)
Attaches the given container to the given parent.
Definition con.c:222
bool con_inside_focused(Con *con)
Checks if the given container is inside a focused container.
Definition con.c:641
bool con_is_leaf(Con *con)
Returns true when this node is a leaf node (has no children)
Definition con.c:361
int con_num_children(Con *con)
Returns the number of children of this container.
Definition con.c:983
void con_activate(Con *con)
Sets input focus to the given container and raises it to the top.
Definition con.c:287
Con * con_get_output(Con *con)
Gets the output container (first container with CT_OUTPUT in hierarchy) this node is on.
Definition con.c:463
Con * con_descend_focused(Con *con)
Returns the focused con inside this client, descending the tree as far as possible.
Definition con.c:1590
#define y(x,...)
Definition commands.c:18
@ XCURSOR_CURSOR_TOP_LEFT_CORNER
Definition xcursor.h:20
@ XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER
Definition xcursor.h:23
@ XCURSOR_CURSOR_MOVE
Definition xcursor.h:25
@ XCURSOR_CURSOR_TOP_RIGHT_CORNER
Definition xcursor.h:21
@ XCURSOR_CURSOR_BOTTOM_LEFT_CORNER
Definition xcursor.h:22
#define FREE(pointer)
Definition util.h:47
#define TAILQ_FOREACH(var, head, field)
Definition queue.h:347
#define TAILQ_INSERT_TAIL(head, elm, field)
Definition queue.h:376
#define TAILQ_PREV(elm, headname, field)
Definition queue.h:342
#define TAILQ_FIRST(head)
Definition queue.h:336
#define TAILQ_REMOVE(head, elm, field)
Definition queue.h:402
#define TAILQ_NEXT(elm, field)
Definition queue.h:338
#define TAILQ_EMPTY(head)
Definition queue.h:344
#define TAILQ_INSERT_BEFORE(listelm, elm, field)
Definition queue.h:394
#define TAILQ_INSERT_HEAD(head, elm, field)
Definition queue.h:366
#define TAILQ_INSERT_AFTER(head, listelm, elm, field)
Definition queue.h:384
#define DLOG(fmt,...)
Definition libi3.h:105
#define LOG(fmt,...)
Definition libi3.h:95
#define ELOG(fmt,...)
Definition libi3.h:100
int sasprintf(char **strp, const char *fmt,...)
Safe-wrapper around asprintf which exits if it returns -1 (meaning that there is no more memory avail...
border_t
On which border was the dragging initiated?
Definition floating.h:17
@ BORDER_BOTTOM
Definition floating.h:20
@ BORDER_TOP
Definition floating.h:19
@ BORDER_RIGHT
Definition floating.h:18
@ BORDER_LEFT
Definition floating.h:17
#define DRAGGING_CB(name)
Macro to create a callback function for dragging.
Definition drag.h:19
drag_result_t
This is the return value of a drag operation like drag_pointer.
Definition drag.h:39
@ DRAG_REVERT
Definition drag.h:42
@ AFTER
Definition data.h:64
@ L_SPLITH
Definition data.h:112
@ CF_NONE
Definition data.h:633
@ DONT_KILL_WINDOW
Definition data.h:73
int32_t floating_minimum_width
int32_t floating_minimum_height
int32_t floating_maximum_width
Maximum and minimum dimensions of a floating window.
int32_t floating_maximum_height
border_style_t default_floating_border
The default border style for new floating windows.
Stores a rectangle, for example the size of a window, the child window etc.
Definition data.h:189
uint32_t height
Definition data.h:193
uint32_t x
Definition data.h:190
uint32_t y
Definition data.h:191
uint32_t width
Definition data.h:192
An Output is a physical output on your graphics driver.
Definition data.h:395
Con * con
Pointer to the Con which represents this output.
Definition data.h:415
Rect rect
x, y, width, height
Definition data.h:418
A 'Window' is a type which contains an xcb_window_t and all the related information (hints like _NET_...
Definition data.h:428
double max_aspect_ratio
Definition data.h:507
int base_height
Definition data.h:491
int height_increment
Definition data.h:495
int max_height
Definition data.h:503
double min_aspect_ratio
Definition data.h:506
int max_width
Definition data.h:502
xcb_window_t id
Definition data.h:429
int min_height
Definition data.h:499
int width_increment
Definition data.h:494
int base_width
Definition data.h:490
xcb_window_t leader
Holds the xcb_window_t (just an ID) for the leader window (logical parent for toolwindows and similar...
Definition data.h:433
int min_width
Definition data.h:498
A 'Con' represents everything from the X11 root window down to a single X11 window.
Definition data.h:647
struct Con * parent
Definition data.h:682
enum Con::@20 scratchpad_state
struct Rect deco_rect
Definition data.h:692
enum Con::@18 type
int border_width
Definition data.h:719
double percent
Definition data.h:716
struct Rect rect
Definition data.h:686
border_style_t max_user_border_style
Definition data.h:768
layout_t layout
Definition data.h:759
struct Window * window
Definition data.h:722
border_style_t border_style
Definition data.h:761
char * name
Definition data.h:696
struct Rect geometry
the geometry this window requested when getting mapped
Definition data.h:694
enum Con::@19 floating
floating? (= not in tiling layout) This cannot be simply a bool because we want to keep track of whet...
fullscreen_mode_t fullscreen_mode
Definition data.h:738