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"
34 ObClient
*focus_cycle_target
= NULL
;
35 static gboolean focus_cycle_all_desktops
;
36 static gboolean focus_cycle_dock_windows
;
37 static gboolean focus_cycle_desktop_windows
;
39 static gboolean
focus_target_has_siblings (ObClient
*ft
,
40 gboolean iconic_windows
,
41 gboolean all_desktops
);
42 static ObClient
*focus_find_directional (ObClient
*c
,
44 gboolean dock_windows
,
45 gboolean desktop_windows
);
46 static ObClient
*focus_find_directional (ObClient
*c
,
48 gboolean dock_windows
,
49 gboolean desktop_windows
);
51 void focus_cycle_startup(gboolean reconfig
)
56 void focus_cycle_shutdown(gboolean reconfig
)
61 void focus_cycle_stop()
63 if (focus_cycle_target
) {
64 focus_cycle(TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
);
65 focus_directional_cycle(0, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
);
69 /*! Returns if a focus target has valid group siblings that can be cycled
71 static gboolean
focus_target_has_siblings(ObClient
*ft
,
72 gboolean iconic_windows
,
73 gboolean all_desktops
)
78 if (!ft
->group
) return FALSE
;
80 for (it
= ft
->group
->members
; it
; it
= g_slist_next(it
)) {
81 ObClient
*c
= it
->data
;
82 /* check that it's not a helper window to avoid infinite recursion */
83 if (c
!= ft
&& !client_helper(c
) &&
84 focus_cycle_target_valid(c
, iconic_windows
, all_desktops
, FALSE
,
93 gboolean
focus_cycle_target_valid(ObClient
*ft
,
94 gboolean iconic_windows
,
95 gboolean all_desktops
,
96 gboolean dock_windows
,
97 gboolean desktop_windows
)
101 /* it's on this desktop unless you want all desktops.
103 do this check first because it will usually filter out the most
105 ok
= (all_desktops
|| ft
->desktop
== screen_desktop
||
106 ft
->desktop
== DESKTOP_ALL
);
108 /* the window can receive focus somehow */
109 ok
= ok
&& (ft
->can_focus
|| ft
->focus_notify
);
111 /* the window is not iconic, or we're allowed to go to iconic ones */
112 ok
= ok
&& (iconic_windows
|| !ft
->iconic
);
114 /* it's the right type of window */
115 if (dock_windows
|| desktop_windows
)
116 ok
= ok
&& ((dock_windows
&& ft
->type
== OB_CLIENT_TYPE_DOCK
) ||
117 (desktop_windows
&& ft
->type
== OB_CLIENT_TYPE_DESKTOP
));
118 /* modal windows are important and can always get focus if they are
119 visible and stuff, so don't change 'ok' based on their type */
121 /* normal non-helper windows are valid targets */
123 ((client_normal(ft
) && !client_helper(ft
))
125 /* helper windows are valid targets it... */
126 (client_helper(ft
) &&
127 /* ...a window in its group already has focus ... */
128 ((focus_client
&& ft
->group
== focus_client
->group
) ||
129 /* ... or if there are no other windows in its group
130 that can be cycled to instead */
131 !focus_target_has_siblings(ft
, iconic_windows
, all_desktops
))));
133 /* it's not set to skip the taskbar (unless it is a type that would be
134 expected to set this hint, or modal) */
135 ok
= ok
&& ((ft
->type
== OB_CLIENT_TYPE_DOCK
||
136 ft
->type
== OB_CLIENT_TYPE_DESKTOP
||
137 ft
->type
== OB_CLIENT_TYPE_TOOLBAR
||
138 ft
->type
== OB_CLIENT_TYPE_MENU
||
139 ft
->type
== OB_CLIENT_TYPE_UTILITY
) ||
143 /* it's not going to just send fous off somewhere else (modal window) */
144 ok
= ok
&& ft
== client_focus_target(ft
);
149 void focus_cycle(gboolean forward
, gboolean all_desktops
,
150 gboolean dock_windows
, gboolean desktop_windows
,
151 gboolean linear
, gboolean interactive
,
152 gboolean dialog
, gboolean done
, gboolean cancel
)
154 static ObClient
*first
= NULL
;
155 static ObClient
*t
= NULL
;
156 static GList
*order
= NULL
;
157 GList
*it
, *start
, *list
;
162 focus_cycle_target
= NULL
;
170 if (!first
) first
= focus_client
;
172 if (linear
) list
= client_list
;
173 else list
= focus_order
;
181 if (focus_cycle_target
== NULL
) {
182 focus_cycle_all_desktops
= FALSE
;
183 focus_cycle_dock_windows
= dock_windows
;
184 focus_cycle_desktop_windows
= desktop_windows
;
185 focus_cycle_target
= focus_client
;
188 start
= it
= g_list_find(list
, focus_cycle_target
);
189 if (!start
) /* switched desktops or something? */
190 start
= it
= forward
? g_list_last(list
) : g_list_first(list
);
191 if (!start
) goto done_cycle
;
196 if (it
== NULL
) it
= g_list_first(list
);
199 if (it
== NULL
) it
= g_list_last(list
);
202 if (focus_cycle_target_valid(ft
, TRUE
,
203 focus_cycle_all_desktops
,
204 focus_cycle_dock_windows
,
205 focus_cycle_desktop_windows
))
208 if (ft
!= focus_cycle_target
) { /* prevents flicker */
209 focus_cycle_target
= ft
;
210 focus_cycle_draw_indicator(ft
);
213 /* same arguments as focus_target_valid */
214 focus_cycle_popup_show(ft
, TRUE
,
215 focus_cycle_all_desktops
,
216 focus_cycle_dock_windows
,
217 focus_cycle_desktop_windows
);
219 } else if (ft
!= focus_cycle_target
) {
220 focus_cycle_target
= ft
;
225 } while (it
!= start
);
228 if (done
&& focus_cycle_target
)
229 client_activate(focus_cycle_target
, FALSE
, TRUE
);
233 focus_cycle_target
= NULL
;
238 focus_cycle_draw_indicator(NULL
);
239 focus_cycle_popup_hide();
245 /* this be mostly ripped from fvwm */
246 static ObClient
*focus_find_directional(ObClient
*c
, ObDirection dir
,
247 gboolean dock_windows
,
248 gboolean desktop_windows
)
250 gint my_cx
, my_cy
, his_cx
, his_cy
;
253 gint score
, best_score
;
254 ObClient
*best_client
, *cur
;
260 /* first, find the centre coords of the currently focused window */
261 my_cx
= c
->frame
->area
.x
+ c
->frame
->area
.width
/ 2;
262 my_cy
= c
->frame
->area
.y
+ c
->frame
->area
.height
/ 2;
267 for(it
= g_list_first(client_list
); it
; it
= g_list_next(it
)) {
270 /* the currently selected window isn't interesting */
273 if (!focus_cycle_target_valid(it
->data
, FALSE
, FALSE
, dock_windows
,
277 /* find the centre coords of this window, from the
278 * currently focused window's point of view */
279 his_cx
= (cur
->frame
->area
.x
- my_cx
)
280 + cur
->frame
->area
.width
/ 2;
281 his_cy
= (cur
->frame
->area
.y
- my_cy
)
282 + cur
->frame
->area
.height
/ 2;
284 if(dir
== OB_DIRECTION_NORTHEAST
|| dir
== OB_DIRECTION_SOUTHEAST
||
285 dir
== OB_DIRECTION_SOUTHWEST
|| dir
== OB_DIRECTION_NORTHWEST
) {
287 /* Rotate the diagonals 45 degrees counterclockwise.
288 * To do this, multiply the matrix /+h +h\ with the
289 * vector (x y). \-h +h/
290 * h = sqrt(0.5). We can set h := 1 since absolute
291 * distance doesn't matter here. */
292 tx
= his_cx
+ his_cy
;
293 his_cy
= -his_cx
+ his_cy
;
298 case OB_DIRECTION_NORTH
:
299 case OB_DIRECTION_SOUTH
:
300 case OB_DIRECTION_NORTHEAST
:
301 case OB_DIRECTION_SOUTHWEST
:
302 offset
= (his_cx
< 0) ? -his_cx
: his_cx
;
303 distance
= ((dir
== OB_DIRECTION_NORTH
||
304 dir
== OB_DIRECTION_NORTHEAST
) ?
307 case OB_DIRECTION_EAST
:
308 case OB_DIRECTION_WEST
:
309 case OB_DIRECTION_SOUTHEAST
:
310 case OB_DIRECTION_NORTHWEST
:
311 offset
= (his_cy
< 0) ? -his_cy
: his_cy
;
312 distance
= ((dir
== OB_DIRECTION_WEST
||
313 dir
== OB_DIRECTION_NORTHWEST
) ?
318 /* the target must be in the requested direction */
322 /* Calculate score for this window. The smaller the better. */
323 score
= distance
+ offset
;
325 /* windows more than 45 degrees off the direction are
326 * heavily penalized and will only be chosen if nothing
327 * else within a million pixels */
328 if(offset
> distance
)
331 if(best_score
== -1 || score
< best_score
)
339 void focus_directional_cycle(ObDirection dir
, gboolean dock_windows
,
340 gboolean desktop_windows
, gboolean interactive
,
341 gboolean dialog
, gboolean done
, gboolean cancel
)
343 static ObClient
*first
= NULL
;
350 focus_cycle_target
= NULL
;
358 if (focus_cycle_target
== NULL
) {
359 focus_cycle_all_desktops
= FALSE
;
360 focus_cycle_dock_windows
= dock_windows
;
361 focus_cycle_desktop_windows
= desktop_windows
;
362 focus_cycle_target
= focus_client
;
365 if (!first
) first
= focus_client
;
367 if (focus_cycle_target
)
368 ft
= focus_find_directional(focus_cycle_target
, dir
, dock_windows
,
373 for (it
= focus_order
; it
; it
= g_list_next(it
))
374 if (focus_cycle_target_valid(it
->data
, FALSE
, FALSE
,
375 focus_cycle_dock_windows
,
376 focus_cycle_desktop_windows
))
381 if (ft
!= focus_cycle_target
) {/* prevents flicker */
382 focus_cycle_target
= ft
;
383 focus_cycle_draw_indicator(ft
);
386 if (focus_cycle_target
&& dialog
) {
387 /* same arguments as focus_target_valid */
388 focus_cycle_popup_single_show(focus_cycle_target
,
390 focus_cycle_dock_windows
,
391 focus_cycle_desktop_windows
);
396 if (done
&& focus_cycle_target
)
397 client_activate(focus_cycle_target
, FALSE
, TRUE
);
400 focus_cycle_target
= NULL
;
402 focus_cycle_draw_indicator(NULL
);
403 focus_cycle_popup_single_hide();