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"
32 ObClient *focus_cycle_target = NULL;
33 static gboolean focus_cycle_iconic_windows;
34 static gboolean focus_cycle_all_desktops;
35 static gboolean focus_cycle_dock_windows;
36 static gboolean focus_cycle_desktop_windows;
38 static ObClient *focus_find_directional(ObClient *c,
40 gboolean dock_windows,
41 gboolean desktop_windows);
43 void focus_cycle_startup(gboolean reconfig)
48 void focus_cycle_shutdown(gboolean reconfig)
53 void focus_cycle_stop(ObClient *ifclient)
55 /* stop focus cycling if the given client is a valid focus target,
56 and so the cycling is being disrupted */
57 if (focus_cycle_target &&
58 ((ifclient && (ifclient == focus_cycle_target ||
59 focus_cycle_popup_is_showing(ifclient))) ||
62 focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE,TRUE);
63 focus_directional_cycle(0, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
67 ObClient* focus_cycle(gboolean forward, gboolean all_desktops,
68 gboolean dock_windows, gboolean desktop_windows,
69 gboolean linear, gboolean interactive,
70 gboolean showbar, ObFocusCyclePopupMode mode,
71 gboolean done, gboolean cancel)
73 static GList *order = NULL;
74 GList *it, *start, *list;
80 focus_cycle_target = NULL;
88 if (linear) list = client_list;
89 else list = focus_order;
96 if (focus_cycle_target == NULL) {
97 focus_cycle_iconic_windows = TRUE;
98 focus_cycle_all_desktops = all_desktops;
99 focus_cycle_dock_windows = dock_windows;
100 focus_cycle_desktop_windows = desktop_windows;
101 start = it = g_list_find(list, focus_client);
103 start = it = g_list_find(list, focus_cycle_target);
105 if (!start) /* switched desktops or something? */
106 start = it = forward ? g_list_last(list) : g_list_first(list);
107 if (!start) goto done_cycle;
112 if (it == NULL) it = g_list_first(list);
115 if (it == NULL) it = g_list_last(list);
118 if (focus_valid_target(ft, screen_desktop, TRUE,
119 focus_cycle_iconic_windows,
120 focus_cycle_all_desktops,
121 focus_cycle_dock_windows,
122 focus_cycle_desktop_windows,
126 if (ft != focus_cycle_target) { /* prevents flicker */
127 focus_cycle_target = ft;
128 focus_cycle_draw_indicator(showbar ? ft : NULL);
130 /* same arguments as focus_target_valid */
131 focus_cycle_popup_show(ft,
132 focus_cycle_iconic_windows,
133 focus_cycle_all_desktops,
134 focus_cycle_dock_windows,
135 focus_cycle_desktop_windows,
137 return focus_cycle_target;
138 } else if (ft != focus_cycle_target) {
139 focus_cycle_target = ft;
144 } while (it != start);
147 if (done && !cancel) ret = focus_cycle_target;
149 focus_cycle_target = NULL;
154 focus_cycle_draw_indicator(NULL);
155 focus_cycle_popup_hide();
161 /* this be mostly ripped from fvwm */
162 static ObClient *focus_find_directional(ObClient *c, ObDirection dir,
163 gboolean dock_windows,
164 gboolean desktop_windows)
166 gint my_cx, my_cy, his_cx, his_cy;
169 gint score, best_score;
170 ObClient *best_client, *cur;
176 /* first, find the centre coords of the currently focused window */
177 my_cx = c->frame->area.x + c->frame->area.width / 2;
178 my_cy = c->frame->area.y + c->frame->area.height / 2;
183 for (it = g_list_first(client_list); it; it = g_list_next(it)) {
186 /* the currently selected window isn't interesting */
189 if (!focus_valid_target(it->data, screen_desktop,
190 TRUE, FALSE, FALSE, dock_windows,
191 desktop_windows, FALSE))
194 /* find the centre coords of this window, from the
195 * currently focused window's point of view */
196 his_cx = (cur->frame->area.x - my_cx)
197 + cur->frame->area.width / 2;
198 his_cy = (cur->frame->area.y - my_cy)
199 + cur->frame->area.height / 2;
201 if (dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
202 dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST)
205 /* Rotate the diagonals 45 degrees counterclockwise.
206 * To do this, multiply the matrix /+h +h\ with the
207 * vector (x y). \-h +h/
208 * h = sqrt(0.5). We can set h := 1 since absolute
209 * distance doesn't matter here. */
210 tx = his_cx + his_cy;
211 his_cy = -his_cx + his_cy;
216 case OB_DIRECTION_NORTH:
217 case OB_DIRECTION_SOUTH:
218 case OB_DIRECTION_NORTHEAST:
219 case OB_DIRECTION_SOUTHWEST:
220 offset = (his_cx < 0) ? -his_cx : his_cx;
221 distance = ((dir == OB_DIRECTION_NORTH ||
222 dir == OB_DIRECTION_NORTHEAST) ?
225 case OB_DIRECTION_EAST:
226 case OB_DIRECTION_WEST:
227 case OB_DIRECTION_SOUTHEAST:
228 case OB_DIRECTION_NORTHWEST:
229 offset = (his_cy < 0) ? -his_cy : his_cy;
230 distance = ((dir == OB_DIRECTION_WEST ||
231 dir == OB_DIRECTION_NORTHWEST) ?
236 /* the target must be in the requested direction */
240 /* Calculate score for this window. The smaller the better. */
241 score = distance + offset;
243 /* windows more than 45 degrees off the direction are
244 * heavily penalized and will only be chosen if nothing
245 * else within a million pixels */
246 if (offset > distance)
249 if (best_score == -1 || score < best_score) {
258 ObClient* focus_directional_cycle(ObDirection dir, gboolean dock_windows,
259 gboolean desktop_windows,
260 gboolean interactive,
261 gboolean showbar, gboolean dialog,
262 gboolean done, gboolean cancel)
264 static ObClient *first = NULL;
266 ObClient *ret = NULL;
269 focus_cycle_target = NULL;
271 } else if (done && interactive)
277 if (focus_cycle_target == NULL) {
278 focus_cycle_iconic_windows = FALSE;
279 focus_cycle_all_desktops = FALSE;
280 focus_cycle_dock_windows = dock_windows;
281 focus_cycle_desktop_windows = desktop_windows;
284 if (!first) first = focus_client;
286 if (focus_cycle_target)
287 ft = focus_find_directional(focus_cycle_target, dir, dock_windows,
290 ft = focus_find_directional(first, dir, dock_windows, desktop_windows);
294 for (it = focus_order; it; it = g_list_next(it))
295 if (focus_valid_target(it->data, screen_desktop, TRUE,
296 focus_cycle_iconic_windows,
297 focus_cycle_all_desktops,
298 focus_cycle_dock_windows,
299 focus_cycle_desktop_windows, FALSE))
303 if (ft && ft != focus_cycle_target) {/* prevents flicker */
304 focus_cycle_target = ft;
307 focus_cycle_draw_indicator(showbar ? ft : NULL);
309 if (focus_cycle_target && dialog)
310 /* same arguments as focus_target_valid */
311 focus_cycle_popup_single_show(focus_cycle_target,
312 focus_cycle_iconic_windows,
313 focus_cycle_all_desktops,
314 focus_cycle_dock_windows,
315 focus_cycle_desktop_windows);
316 return focus_cycle_target;
319 if (done && !cancel) ret = focus_cycle_target;
322 focus_cycle_target = NULL;
324 focus_cycle_draw_indicator(NULL);
325 focus_cycle_popup_single_hide();