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 (ifclient
== focus_cycle_target
||
60 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
, gboolean dialog
,
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
, 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
);
131 /* same arguments as focus_target_valid */
132 focus_cycle_popup_show(ft
,
133 focus_cycle_iconic_windows
,
134 focus_cycle_all_desktops
,
135 focus_cycle_dock_windows
,
136 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
, TRUE
, FALSE
, FALSE
, dock_windows
,
190 desktop_windows
, FALSE
))
193 /* find the centre coords of this window, from the
194 * currently focused window's point of view */
195 his_cx
= (cur
->frame
->area
.x
- my_cx
)
196 + cur
->frame
->area
.width
/ 2;
197 his_cy
= (cur
->frame
->area
.y
- my_cy
)
198 + cur
->frame
->area
.height
/ 2;
200 if (dir
== OB_DIRECTION_NORTHEAST
|| dir
== OB_DIRECTION_SOUTHEAST
||
201 dir
== OB_DIRECTION_SOUTHWEST
|| dir
== OB_DIRECTION_NORTHWEST
)
204 /* Rotate the diagonals 45 degrees counterclockwise.
205 * To do this, multiply the matrix /+h +h\ with the
206 * vector (x y). \-h +h/
207 * h = sqrt(0.5). We can set h := 1 since absolute
208 * distance doesn't matter here. */
209 tx
= his_cx
+ his_cy
;
210 his_cy
= -his_cx
+ his_cy
;
215 case OB_DIRECTION_NORTH
:
216 case OB_DIRECTION_SOUTH
:
217 case OB_DIRECTION_NORTHEAST
:
218 case OB_DIRECTION_SOUTHWEST
:
219 offset
= (his_cx
< 0) ? -his_cx
: his_cx
;
220 distance
= ((dir
== OB_DIRECTION_NORTH
||
221 dir
== OB_DIRECTION_NORTHEAST
) ?
224 case OB_DIRECTION_EAST
:
225 case OB_DIRECTION_WEST
:
226 case OB_DIRECTION_SOUTHEAST
:
227 case OB_DIRECTION_NORTHWEST
:
228 offset
= (his_cy
< 0) ? -his_cy
: his_cy
;
229 distance
= ((dir
== OB_DIRECTION_WEST
||
230 dir
== OB_DIRECTION_NORTHWEST
) ?
235 /* the target must be in the requested direction */
239 /* Calculate score for this window. The smaller the better. */
240 score
= distance
+ offset
;
242 /* windows more than 45 degrees off the direction are
243 * heavily penalized and will only be chosen if nothing
244 * else within a million pixels */
245 if (offset
> distance
)
248 if (best_score
== -1 || score
< best_score
) {
257 ObClient
* focus_directional_cycle(ObDirection dir
, gboolean dock_windows
,
258 gboolean desktop_windows
,
259 gboolean interactive
,
260 gboolean showbar
, gboolean dialog
,
261 gboolean done
, gboolean cancel
)
263 static ObClient
*first
= NULL
;
265 ObClient
*ret
= NULL
;
268 focus_cycle_target
= NULL
;
270 } else if (done
&& interactive
)
276 if (focus_cycle_target
== NULL
) {
277 focus_cycle_iconic_windows
= FALSE
;
278 focus_cycle_all_desktops
= FALSE
;
279 focus_cycle_dock_windows
= dock_windows
;
280 focus_cycle_desktop_windows
= desktop_windows
;
283 if (!first
) first
= focus_client
;
285 if (focus_cycle_target
)
286 ft
= focus_find_directional(focus_cycle_target
, dir
, dock_windows
,
289 ft
= focus_find_directional(first
, dir
, dock_windows
, desktop_windows
);
293 for (it
= focus_order
; it
; it
= g_list_next(it
))
294 if (focus_valid_target(it
->data
, TRUE
,
295 focus_cycle_iconic_windows
,
296 focus_cycle_all_desktops
,
297 focus_cycle_dock_windows
,
298 focus_cycle_desktop_windows
, FALSE
))
302 if (ft
&& ft
!= focus_cycle_target
) {/* prevents flicker */
303 focus_cycle_target
= ft
;
306 focus_cycle_draw_indicator(showbar
? ft
: NULL
);
308 if (focus_cycle_target
&& dialog
)
309 /* same arguments as focus_target_valid */
310 focus_cycle_popup_single_show(focus_cycle_target
,
311 focus_cycle_iconic_windows
,
312 focus_cycle_all_desktops
,
313 focus_cycle_dock_windows
,
314 focus_cycle_desktop_windows
);
315 return focus_cycle_target
;
318 if (done
&& !cancel
) ret
= focus_cycle_target
;
321 focus_cycle_target
= NULL
;
323 focus_cycle_draw_indicator(NULL
);
324 focus_cycle_popup_single_hide();