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 /* shortcut check, it is what we are pointing at right now */
60 (ifclient == focus_cycle_target ||
61 /* it's shown but it shouldn't be anymore */
62 focus_cycle_popup_is_showing(ifclient) ||
63 /* it's not shown but it should be */
64 focus_valid_target(ifclient, TRUE,
65 focus_cycle_iconic_windows,
66 focus_cycle_all_desktops,
67 focus_cycle_dock_windows,
68 focus_cycle_desktop_windows,
71 focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE,TRUE);
72 focus_directional_cycle(0, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
76 ObClient* focus_cycle(gboolean forward, gboolean all_desktops,
77 gboolean dock_windows, gboolean desktop_windows,
78 gboolean linear, gboolean interactive,
79 gboolean showbar, gboolean dialog,
80 gboolean done, gboolean cancel)
82 static GList *order = NULL;
83 GList *it, *start, *list;
89 focus_cycle_target = NULL;
97 if (linear) list = client_list;
98 else list = focus_order;
105 if (focus_cycle_target == NULL) {
106 focus_cycle_iconic_windows = TRUE;
107 focus_cycle_all_desktops = all_desktops;
108 focus_cycle_dock_windows = dock_windows;
109 focus_cycle_desktop_windows = desktop_windows;
110 start = it = g_list_find(list, focus_client);
112 start = it = g_list_find(list, focus_cycle_target);
114 if (!start) /* switched desktops or something? */
115 start = it = forward ? g_list_last(list) : g_list_first(list);
116 if (!start) goto done_cycle;
121 if (it == NULL) it = g_list_first(list);
124 if (it == NULL) it = g_list_last(list);
127 if (focus_valid_target(ft, TRUE,
128 focus_cycle_iconic_windows,
129 focus_cycle_all_desktops,
130 focus_cycle_dock_windows,
131 focus_cycle_desktop_windows,
135 if (ft != focus_cycle_target) { /* prevents flicker */
136 focus_cycle_target = ft;
137 focus_cycle_draw_indicator(showbar ? ft : NULL);
140 /* same arguments as focus_target_valid */
141 focus_cycle_popup_show(ft,
142 focus_cycle_iconic_windows,
143 focus_cycle_all_desktops,
144 focus_cycle_dock_windows,
145 focus_cycle_desktop_windows);
146 return focus_cycle_target;
147 } else if (ft != focus_cycle_target) {
148 focus_cycle_target = ft;
153 } while (it != start);
156 if (done && !cancel) ret = focus_cycle_target;
158 focus_cycle_target = NULL;
163 focus_cycle_draw_indicator(NULL);
164 focus_cycle_popup_hide();
170 /* this be mostly ripped from fvwm */
171 static ObClient *focus_find_directional(ObClient *c, ObDirection dir,
172 gboolean dock_windows,
173 gboolean desktop_windows)
175 gint my_cx, my_cy, his_cx, his_cy;
178 gint score, best_score;
179 ObClient *best_client, *cur;
185 /* first, find the centre coords of the currently focused window */
186 my_cx = c->frame->area.x + c->frame->area.width / 2;
187 my_cy = c->frame->area.y + c->frame->area.height / 2;
192 for (it = g_list_first(client_list); it; it = g_list_next(it)) {
195 /* the currently selected window isn't interesting */
198 if (!focus_valid_target(it->data, TRUE, FALSE, FALSE, dock_windows,
199 desktop_windows, FALSE))
202 /* find the centre coords of this window, from the
203 * currently focused window's point of view */
204 his_cx = (cur->frame->area.x - my_cx)
205 + cur->frame->area.width / 2;
206 his_cy = (cur->frame->area.y - my_cy)
207 + cur->frame->area.height / 2;
209 if (dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
210 dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST)
213 /* Rotate the diagonals 45 degrees counterclockwise.
214 * To do this, multiply the matrix /+h +h\ with the
215 * vector (x y). \-h +h/
216 * h = sqrt(0.5). We can set h := 1 since absolute
217 * distance doesn't matter here. */
218 tx = his_cx + his_cy;
219 his_cy = -his_cx + his_cy;
224 case OB_DIRECTION_NORTH:
225 case OB_DIRECTION_SOUTH:
226 case OB_DIRECTION_NORTHEAST:
227 case OB_DIRECTION_SOUTHWEST:
228 offset = (his_cx < 0) ? -his_cx : his_cx;
229 distance = ((dir == OB_DIRECTION_NORTH ||
230 dir == OB_DIRECTION_NORTHEAST) ?
233 case OB_DIRECTION_EAST:
234 case OB_DIRECTION_WEST:
235 case OB_DIRECTION_SOUTHEAST:
236 case OB_DIRECTION_NORTHWEST:
237 offset = (his_cy < 0) ? -his_cy : his_cy;
238 distance = ((dir == OB_DIRECTION_WEST ||
239 dir == OB_DIRECTION_NORTHWEST) ?
244 /* the target must be in the requested direction */
248 /* Calculate score for this window. The smaller the better. */
249 score = distance + offset;
251 /* windows more than 45 degrees off the direction are
252 * heavily penalized and will only be chosen if nothing
253 * else within a million pixels */
254 if (offset > distance)
257 if (best_score == -1 || score < best_score) {
266 ObClient* focus_directional_cycle(ObDirection dir, gboolean dock_windows,
267 gboolean desktop_windows,
268 gboolean interactive,
269 gboolean showbar, gboolean dialog,
270 gboolean done, gboolean cancel)
272 static ObClient *first = NULL;
274 ObClient *ret = NULL;
277 focus_cycle_target = NULL;
279 } else if (done && interactive)
285 if (focus_cycle_target == NULL) {
286 focus_cycle_iconic_windows = FALSE;
287 focus_cycle_all_desktops = FALSE;
288 focus_cycle_dock_windows = dock_windows;
289 focus_cycle_desktop_windows = desktop_windows;
292 if (!first) first = focus_client;
294 if (focus_cycle_target)
295 ft = focus_find_directional(focus_cycle_target, dir, dock_windows,
298 ft = focus_find_directional(first, dir, dock_windows, desktop_windows);
302 for (it = focus_order; it; it = g_list_next(it))
303 if (focus_valid_target(it->data, TRUE,
304 focus_cycle_iconic_windows,
305 focus_cycle_all_desktops,
306 focus_cycle_dock_windows,
307 focus_cycle_desktop_windows, FALSE))
311 if (ft && ft != focus_cycle_target) {/* prevents flicker */
312 focus_cycle_target = ft;
315 focus_cycle_draw_indicator(showbar ? ft : NULL);
317 if (focus_cycle_target && dialog)
318 /* same arguments as focus_target_valid */
319 focus_cycle_popup_single_show(focus_cycle_target,
320 focus_cycle_iconic_windows,
321 focus_cycle_all_desktops,
322 focus_cycle_dock_windows,
323 focus_cycle_desktop_windows);
324 return focus_cycle_target;
327 if (done && !cancel) ret = focus_cycle_target;
330 focus_cycle_target = NULL;
332 focus_cycle_draw_indicator(NULL);
333 focus_cycle_popup_single_hide();