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"
38 ObClient
*focus_cycle_target
= NULL
;
39 static ObCycleType focus_cycle_type
= OB_CYCLE_NONE
;
40 static gboolean focus_cycle_linear
;
41 static gboolean focus_cycle_iconic_windows
;
42 static gboolean focus_cycle_all_desktops
;
43 static gboolean focus_cycle_nonhilite_windows
;
44 static gboolean focus_cycle_dock_windows
;
45 static gboolean focus_cycle_desktop_windows
;
47 static ObClient
*focus_find_directional(ObClient
*c
,
49 gboolean dock_windows
,
50 gboolean desktop_windows
);
52 void focus_cycle_startup(gboolean reconfig
)
57 void focus_cycle_shutdown(gboolean reconfig
)
62 void focus_cycle_addremove(ObClient
*c
, gboolean redraw
)
64 if (!focus_cycle_type
)
67 if (focus_cycle_type
== OB_CYCLE_DIRECTIONAL
) {
68 if (c
&& focus_cycle_target
== c
) {
69 focus_directional_cycle(0, TRUE
, TRUE
, TRUE
, TRUE
,
73 else if (c
&& redraw
) {
76 v
= focus_cycle_valid(c
);
77 s
= focus_cycle_popup_is_showing(c
) || c
== focus_cycle_target
;
80 focus_cycle_reorder();
83 focus_cycle_reorder();
87 void focus_cycle_reorder()
89 if (focus_cycle_type
== OB_CYCLE_NORMAL
) {
90 focus_cycle_target
= focus_cycle_popup_refresh(focus_cycle_target
,
93 focus_cycle_update_indicator(focus_cycle_target
);
94 if (!focus_cycle_target
)
95 focus_cycle(TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
,
96 TRUE
, OB_FOCUS_CYCLE_POPUP_MODE_NONE
,
101 ObClient
* focus_cycle(gboolean forward
, gboolean all_desktops
,
102 gboolean nonhilite_windows
,
103 gboolean dock_windows
, gboolean desktop_windows
,
104 gboolean linear
, gboolean showbar
,
105 ObFocusCyclePopupMode mode
,
106 gboolean done
, gboolean cancel
)
108 static GList
*order
= NULL
;
109 GList
*it
, *start
, *list
;
111 ObClient
*ret
= NULL
;
114 focus_cycle_target
= NULL
;
122 if (linear
) list
= client_list
;
123 else list
= focus_order
;
125 if (focus_cycle_target
== NULL
) {
126 focus_cycle_linear
= linear
;
127 focus_cycle_iconic_windows
= TRUE
;
128 focus_cycle_all_desktops
= all_desktops
;
129 focus_cycle_nonhilite_windows
= nonhilite_windows
;
130 focus_cycle_dock_windows
= dock_windows
;
131 focus_cycle_desktop_windows
= desktop_windows
;
132 start
= it
= g_list_find(list
, focus_client
);
134 start
= it
= g_list_find(list
, focus_cycle_target
);
136 if (!start
) /* switched desktops or something? */
137 start
= it
= forward
? g_list_last(list
) : g_list_first(list
);
138 if (!start
) goto done_cycle
;
143 if (it
== NULL
) it
= g_list_first(list
);
146 if (it
== NULL
) it
= g_list_last(list
);
149 if (focus_cycle_valid(ft
)) {
150 if (ft
!= focus_cycle_target
) { /* prevents flicker */
151 focus_cycle_target
= ft
;
152 focus_cycle_type
= OB_CYCLE_NORMAL
;
153 focus_cycle_draw_indicator(showbar
? ft
: NULL
);
155 /* same arguments as focus_target_valid */
156 focus_cycle_popup_show(ft
, mode
, focus_cycle_linear
);
157 return focus_cycle_target
;
159 } while (it
!= start
);
162 if (done
&& !cancel
) ret
= focus_cycle_target
;
164 focus_cycle_target
= NULL
;
165 focus_cycle_type
= OB_CYCLE_NONE
;
169 focus_cycle_draw_indicator(NULL
);
170 focus_cycle_popup_hide();
175 /* this be mostly ripped from fvwm */
176 static ObClient
*focus_find_directional(ObClient
*c
, ObDirection dir
,
177 gboolean dock_windows
,
178 gboolean desktop_windows
)
180 gint my_cx
, my_cy
, his_cx
, his_cy
;
183 gint score
, best_score
;
184 ObClient
*best_client
, *cur
;
190 /* first, find the centre coords of the currently focused window */
191 my_cx
= c
->frame
->area
.x
+ c
->frame
->area
.width
/ 2;
192 my_cy
= c
->frame
->area
.y
+ c
->frame
->area
.height
/ 2;
197 for (it
= g_list_first(client_list
); it
; it
= g_list_next(it
)) {
200 /* the currently selected window isn't interesting */
203 if (!focus_cycle_valid(it
->data
))
206 /* find the centre coords of this window, from the
207 * currently focused window's point of view */
208 his_cx
= (cur
->frame
->area
.x
- my_cx
)
209 + cur
->frame
->area
.width
/ 2;
210 his_cy
= (cur
->frame
->area
.y
- my_cy
)
211 + cur
->frame
->area
.height
/ 2;
213 if (dir
== OB_DIRECTION_NORTHEAST
|| dir
== OB_DIRECTION_SOUTHEAST
||
214 dir
== OB_DIRECTION_SOUTHWEST
|| dir
== OB_DIRECTION_NORTHWEST
)
217 /* Rotate the diagonals 45 degrees counterclockwise.
218 * To do this, multiply the matrix /+h +h\ with the
219 * vector (x y). \-h +h/
220 * h = sqrt(0.5). We can set h := 1 since absolute
221 * distance doesn't matter here. */
222 tx
= his_cx
+ his_cy
;
223 his_cy
= -his_cx
+ his_cy
;
228 case OB_DIRECTION_NORTH
:
229 case OB_DIRECTION_SOUTH
:
230 case OB_DIRECTION_NORTHEAST
:
231 case OB_DIRECTION_SOUTHWEST
:
232 offset
= (his_cx
< 0) ? -his_cx
: his_cx
;
233 distance
= ((dir
== OB_DIRECTION_NORTH
||
234 dir
== OB_DIRECTION_NORTHEAST
) ?
237 case OB_DIRECTION_EAST
:
238 case OB_DIRECTION_WEST
:
239 case OB_DIRECTION_SOUTHEAST
:
240 case OB_DIRECTION_NORTHWEST
:
241 offset
= (his_cy
< 0) ? -his_cy
: his_cy
;
242 distance
= ((dir
== OB_DIRECTION_WEST
||
243 dir
== OB_DIRECTION_NORTHWEST
) ?
248 /* the target must be in the requested direction */
252 /* Calculate score for this window. The smaller the better. */
253 score
= distance
+ offset
;
255 /* windows more than 45 degrees off the direction are
256 * heavily penalized and will only be chosen if nothing
257 * else within a million pixels */
258 if (offset
> distance
)
261 if (best_score
== -1 || score
< best_score
) {
270 ObClient
* focus_directional_cycle(ObDirection dir
, gboolean dock_windows
,
271 gboolean desktop_windows
,
272 gboolean interactive
,
273 gboolean showbar
, gboolean dialog
,
274 gboolean done
, gboolean cancel
)
276 static ObClient
*first
= NULL
;
278 ObClient
*ret
= NULL
;
281 focus_cycle_target
= NULL
;
283 } else if (done
&& interactive
)
289 if (focus_cycle_target
== NULL
) {
290 focus_cycle_linear
= FALSE
;
291 focus_cycle_iconic_windows
= FALSE
;
292 focus_cycle_all_desktops
= FALSE
;
293 focus_cycle_nonhilite_windows
= TRUE
;
294 focus_cycle_dock_windows
= dock_windows
;
295 focus_cycle_desktop_windows
= desktop_windows
;
298 if (!first
) first
= focus_client
;
300 if (focus_cycle_target
)
301 ft
= focus_find_directional(focus_cycle_target
, dir
, dock_windows
,
304 ft
= focus_find_directional(first
, dir
, dock_windows
, desktop_windows
);
308 for (it
= focus_order
; it
; it
= g_list_next(it
))
309 if (focus_cycle_valid(it
->data
)) {
315 if (ft
&& ft
!= focus_cycle_target
) {/* prevents flicker */
316 focus_cycle_target
= ft
;
317 focus_cycle_type
= OB_CYCLE_DIRECTIONAL
;
320 focus_cycle_draw_indicator(showbar
? ft
: NULL
);
322 if (focus_cycle_target
&& dialog
)
323 /* same arguments as focus_target_valid */
324 focus_cycle_popup_single_show(focus_cycle_target
);
325 return focus_cycle_target
;
328 if (done
&& !cancel
) ret
= focus_cycle_target
;
331 focus_cycle_target
= NULL
;
332 focus_cycle_type
= OB_CYCLE_NONE
;
334 focus_cycle_draw_indicator(NULL
);
335 focus_cycle_popup_single_hide();
340 gboolean
focus_cycle_valid(struct _ObClient
*client
)
342 return focus_valid_target(client
, screen_desktop
, TRUE
,
343 focus_cycle_iconic_windows
,
344 focus_cycle_all_desktops
,
345 focus_cycle_nonhilite_windows
,
346 focus_cycle_dock_windows
,
347 focus_cycle_desktop_windows
,