1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 focus_cycle.c for the Openbox window manager
4 Copyright (c) 2006 Mikael Magnusson
5 Copyright (c) 2003-2007 Dana Jansens
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 See the COPYING file for a copy of the GNU General Public License.
20 #include "focus_cycle.h"
21 #include "focus_cycle_indicator.h"
22 #include "focus_cycle_popup.h"
33 ObClient *focus_cycle_target = NULL;
34 static gboolean focus_cycle_iconic_windows;
35 static gboolean focus_cycle_all_desktops;
36 static gboolean focus_cycle_dock_windows;
37 static gboolean focus_cycle_desktop_windows;
39 static ObClient *focus_find_directional(ObClient *c,
41 gboolean dock_windows,
42 gboolean desktop_windows);
44 void focus_cycle_startup(gboolean reconfig)
49 void focus_cycle_shutdown(gboolean reconfig)
54 void focus_cycle_stop(ObClient *ifclient)
56 /* stop focus cycling if the given client is a valid focus target,
57 and so the cycling is being disrupted */
58 if (focus_cycle_target && ifclient &&
59 focus_valid_target(ifclient, TRUE,
60 focus_cycle_iconic_windows,
61 focus_cycle_all_desktops,
62 focus_cycle_dock_windows,
63 focus_cycle_desktop_windows))
65 focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
66 focus_directional_cycle(0, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
70 ObClient* focus_cycle(gboolean forward, gboolean all_desktops,
71 gboolean dock_windows, gboolean desktop_windows,
72 gboolean linear, gboolean interactive,
73 gboolean dialog, gboolean done, gboolean cancel)
75 static ObClient *t = NULL;
76 static GList *order = NULL;
77 GList *it, *start, *list;
83 focus_cycle_target = NULL;
91 if (linear) list = client_list;
92 else list = focus_order;
100 if (focus_cycle_target == NULL) {
101 focus_cycle_iconic_windows = TRUE;
102 focus_cycle_all_desktops = all_desktops;
103 focus_cycle_dock_windows = dock_windows;
104 focus_cycle_desktop_windows = desktop_windows;
105 start = it = g_list_find(list, focus_client);
107 start = it = g_list_find(list, focus_cycle_target);
109 if (!start) /* switched desktops or something? */
110 start = it = forward ? g_list_last(list) : g_list_first(list);
111 if (!start) goto done_cycle;
116 if (it == NULL) it = g_list_first(list);
119 if (it == NULL) it = g_list_last(list);
122 if (focus_valid_target(ft, TRUE,
123 focus_cycle_iconic_windows,
124 focus_cycle_all_desktops,
125 focus_cycle_dock_windows,
126 focus_cycle_desktop_windows))
129 if (ft != focus_cycle_target) { /* prevents flicker */
130 focus_cycle_target = ft;
131 focus_cycle_draw_indicator(ft);
134 /* same arguments as focus_target_valid */
135 focus_cycle_popup_show(ft,
136 focus_cycle_iconic_windows,
137 focus_cycle_all_desktops,
138 focus_cycle_dock_windows,
139 focus_cycle_desktop_windows);
140 return focus_cycle_target;
141 } else if (ft != focus_cycle_target) {
142 focus_cycle_target = ft;
147 } while (it != start);
150 if (done && !cancel) ret = focus_cycle_target;
153 focus_cycle_target = NULL;
158 focus_cycle_draw_indicator(NULL);
159 focus_cycle_popup_hide();
165 /* this be mostly ripped from fvwm */
166 static ObClient *focus_find_directional(ObClient *c, ObDirection dir,
167 gboolean dock_windows,
168 gboolean desktop_windows)
170 gint my_cx, my_cy, his_cx, his_cy;
173 gint score, best_score;
174 ObClient *best_client, *cur;
180 /* first, find the centre coords of the currently focused window */
181 my_cx = c->frame->area.x + c->frame->area.width / 2;
182 my_cy = c->frame->area.y + c->frame->area.height / 2;
187 for (it = g_list_first(client_list); it; it = g_list_next(it)) {
190 /* the currently selected window isn't interesting */
193 if (!focus_valid_target(it->data, TRUE, FALSE, FALSE, dock_windows,
197 /* find the centre coords of this window, from the
198 * currently focused window's point of view */
199 his_cx = (cur->frame->area.x - my_cx)
200 + cur->frame->area.width / 2;
201 his_cy = (cur->frame->area.y - my_cy)
202 + cur->frame->area.height / 2;
204 if (dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
205 dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST)
208 /* Rotate the diagonals 45 degrees counterclockwise.
209 * To do this, multiply the matrix /+h +h\ with the
210 * vector (x y). \-h +h/
211 * h = sqrt(0.5). We can set h := 1 since absolute
212 * distance doesn't matter here. */
213 tx = his_cx + his_cy;
214 his_cy = -his_cx + his_cy;
219 case OB_DIRECTION_NORTH:
220 case OB_DIRECTION_SOUTH:
221 case OB_DIRECTION_NORTHEAST:
222 case OB_DIRECTION_SOUTHWEST:
223 offset = (his_cx < 0) ? -his_cx : his_cx;
224 distance = ((dir == OB_DIRECTION_NORTH ||
225 dir == OB_DIRECTION_NORTHEAST) ?
228 case OB_DIRECTION_EAST:
229 case OB_DIRECTION_WEST:
230 case OB_DIRECTION_SOUTHEAST:
231 case OB_DIRECTION_NORTHWEST:
232 offset = (his_cy < 0) ? -his_cy : his_cy;
233 distance = ((dir == OB_DIRECTION_WEST ||
234 dir == OB_DIRECTION_NORTHWEST) ?
239 /* the target must be in the requested direction */
243 /* Calculate score for this window. The smaller the better. */
244 score = distance + offset;
246 /* windows more than 45 degrees off the direction are
247 * heavily penalized and will only be chosen if nothing
248 * else within a million pixels */
249 if (offset > distance)
252 if (best_score == -1 || score < best_score) {
261 ObClient* focus_directional_cycle(ObDirection dir, gboolean dock_windows,
262 gboolean desktop_windows,
263 gboolean interactive,
265 gboolean done, gboolean cancel)
267 static ObClient *first = NULL;
269 ObClient *ret = NULL;
272 focus_cycle_target = NULL;
274 } else if (done && interactive)
280 if (focus_cycle_target == NULL) {
281 focus_cycle_iconic_windows = FALSE;
282 focus_cycle_all_desktops = FALSE;
283 focus_cycle_dock_windows = dock_windows;
284 focus_cycle_desktop_windows = desktop_windows;
287 if (!first) first = focus_client;
289 if (focus_cycle_target)
290 ft = focus_find_directional(focus_cycle_target, dir, dock_windows,
293 ft = focus_find_directional(first, dir, dock_windows, desktop_windows);
297 for (it = focus_order; it; it = g_list_next(it))
298 if (focus_valid_target(it->data, TRUE,
299 focus_cycle_iconic_windows,
300 focus_cycle_all_desktops,
301 focus_cycle_dock_windows,
302 focus_cycle_desktop_windows))
306 if (ft && ft != focus_cycle_target) {/* prevents flicker */
307 focus_cycle_target = ft;
310 focus_cycle_draw_indicator(ft);
312 if (focus_cycle_target && dialog)
313 /* same arguments as focus_target_valid */
314 focus_cycle_popup_single_show(focus_cycle_target,
315 focus_cycle_iconic_windows,
316 focus_cycle_all_desktops,
317 focus_cycle_dock_windows,
318 focus_cycle_desktop_windows);
319 return focus_cycle_target;
322 if (done && !cancel) ret = focus_cycle_target;
325 focus_cycle_target = NULL;
327 focus_cycle_draw_indicator(NULL);
328 focus_cycle_popup_single_hide();