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 && ifclient &&
58 (ifclient == focus_cycle_target ||
59 focus_cycle_popup_is_showing(ifclient)))
61 focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE,TRUE);
62 focus_directional_cycle(0, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
66 ObClient* focus_cycle(gboolean forward, gboolean all_desktops,
67 gboolean dock_windows, gboolean desktop_windows,
68 gboolean linear, gboolean interactive,
69 gboolean showbar, ObFocusCyclePopupMode mode,
70 gboolean done, gboolean cancel)
72 static GList *order = NULL;
73 GList *it, *start, *list;
79 focus_cycle_target = NULL;
87 if (linear) list = client_list;
88 else list = focus_order;
95 if (focus_cycle_target == NULL) {
96 focus_cycle_iconic_windows = TRUE;
97 focus_cycle_all_desktops = all_desktops;
98 focus_cycle_dock_windows = dock_windows;
99 focus_cycle_desktop_windows = desktop_windows;
100 start = it = g_list_find(list, focus_client);
102 start = it = g_list_find(list, focus_cycle_target);
104 if (!start) /* switched desktops or something? */
105 start = it = forward ? g_list_last(list) : g_list_first(list);
106 if (!start) goto done_cycle;
111 if (it == NULL) it = g_list_first(list);
114 if (it == NULL) it = g_list_last(list);
117 if (focus_valid_target(ft, TRUE,
118 focus_cycle_iconic_windows,
119 focus_cycle_all_desktops,
120 focus_cycle_dock_windows,
121 focus_cycle_desktop_windows,
125 if (ft != focus_cycle_target) { /* prevents flicker */
126 focus_cycle_target = ft;
127 focus_cycle_draw_indicator(showbar ? ft : NULL);
129 /* same arguments as focus_target_valid */
130 focus_cycle_popup_show(ft,
131 focus_cycle_iconic_windows,
132 focus_cycle_all_desktops,
133 focus_cycle_dock_windows,
134 focus_cycle_desktop_windows,
136 return focus_cycle_target;
137 } else if (ft != focus_cycle_target) {
138 focus_cycle_target = ft;
143 } while (it != start);
146 if (done && !cancel) ret = focus_cycle_target;
148 focus_cycle_target = NULL;
153 focus_cycle_draw_indicator(NULL);
154 focus_cycle_popup_hide();
160 /* this be mostly ripped from fvwm */
161 static ObClient *focus_find_directional(ObClient *c, ObDirection dir,
162 gboolean dock_windows,
163 gboolean desktop_windows)
165 gint my_cx, my_cy, his_cx, his_cy;
168 gint score, best_score;
169 ObClient *best_client, *cur;
175 /* first, find the centre coords of the currently focused window */
176 my_cx = c->frame->area.x + c->frame->area.width / 2;
177 my_cy = c->frame->area.y + c->frame->area.height / 2;
182 for (it = g_list_first(client_list); it; it = g_list_next(it)) {
185 /* the currently selected window isn't interesting */
188 if (!focus_valid_target(it->data, TRUE, FALSE, FALSE, dock_windows,
189 desktop_windows, FALSE))
192 /* find the centre coords of this window, from the
193 * currently focused window's point of view */
194 his_cx = (cur->frame->area.x - my_cx)
195 + cur->frame->area.width / 2;
196 his_cy = (cur->frame->area.y - my_cy)
197 + cur->frame->area.height / 2;
199 if (dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
200 dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST)
203 /* Rotate the diagonals 45 degrees counterclockwise.
204 * To do this, multiply the matrix /+h +h\ with the
205 * vector (x y). \-h +h/
206 * h = sqrt(0.5). We can set h := 1 since absolute
207 * distance doesn't matter here. */
208 tx = his_cx + his_cy;
209 his_cy = -his_cx + his_cy;
214 case OB_DIRECTION_NORTH:
215 case OB_DIRECTION_SOUTH:
216 case OB_DIRECTION_NORTHEAST:
217 case OB_DIRECTION_SOUTHWEST:
218 offset = (his_cx < 0) ? -his_cx : his_cx;
219 distance = ((dir == OB_DIRECTION_NORTH ||
220 dir == OB_DIRECTION_NORTHEAST) ?
223 case OB_DIRECTION_EAST:
224 case OB_DIRECTION_WEST:
225 case OB_DIRECTION_SOUTHEAST:
226 case OB_DIRECTION_NORTHWEST:
227 offset = (his_cy < 0) ? -his_cy : his_cy;
228 distance = ((dir == OB_DIRECTION_WEST ||
229 dir == OB_DIRECTION_NORTHWEST) ?
234 /* the target must be in the requested direction */
238 /* Calculate score for this window. The smaller the better. */
239 score = distance + offset;
241 /* windows more than 45 degrees off the direction are
242 * heavily penalized and will only be chosen if nothing
243 * else within a million pixels */
244 if (offset > distance)
247 if (best_score == -1 || score < best_score) {
256 ObClient* focus_directional_cycle(ObDirection dir, gboolean dock_windows,
257 gboolean desktop_windows,
258 gboolean interactive,
259 gboolean showbar, gboolean dialog,
260 gboolean done, gboolean cancel)
262 static ObClient *first = NULL;
264 ObClient *ret = NULL;
267 focus_cycle_target = NULL;
269 } else if (done && interactive)
275 if (focus_cycle_target == NULL) {
276 focus_cycle_iconic_windows = FALSE;
277 focus_cycle_all_desktops = FALSE;
278 focus_cycle_dock_windows = dock_windows;
279 focus_cycle_desktop_windows = desktop_windows;
282 if (!first) first = focus_client;
284 if (focus_cycle_target)
285 ft = focus_find_directional(focus_cycle_target, dir, dock_windows,
288 ft = focus_find_directional(first, dir, dock_windows, desktop_windows);
292 for (it = focus_order; it; it = g_list_next(it))
293 if (focus_valid_target(it->data, TRUE,
294 focus_cycle_iconic_windows,
295 focus_cycle_all_desktops,
296 focus_cycle_dock_windows,
297 focus_cycle_desktop_windows, FALSE))
301 if (ft && ft != focus_cycle_target) {/* prevents flicker */
302 focus_cycle_target = ft;
305 focus_cycle_draw_indicator(showbar ? ft : NULL);
307 if (focus_cycle_target && dialog)
308 /* same arguments as focus_target_valid */
309 focus_cycle_popup_single_show(focus_cycle_target,
310 focus_cycle_iconic_windows,
311 focus_cycle_all_desktops,
312 focus_cycle_dock_windows,
313 focus_cycle_desktop_windows);
314 return focus_cycle_target;
317 if (done && !cancel) ret = focus_cycle_target;
320 focus_cycle_target = NULL;
322 focus_cycle_draw_indicator(NULL);
323 focus_cycle_popup_single_hide();