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
;
36 static void focus_cycle_destroy_notify (ObClient
*client
, gpointer data
);
37 static gboolean
focus_target_has_siblings (ObClient
*ft
,
38 gboolean iconic_windows
,
39 gboolean all_desktops
);
40 static ObClient
*focus_find_directional (ObClient
*c
,
42 gboolean dock_windows
,
43 gboolean desktop_windows
);
44 static ObClient
*focus_find_directional (ObClient
*c
,
46 gboolean dock_windows
,
47 gboolean desktop_windows
);
49 void focus_cycle_startup(gboolean reconfig
)
53 client_add_destroy_notify(focus_cycle_destroy_notify
, NULL
);
56 void focus_cycle_shutdown(gboolean reconfig
)
60 client_remove_destroy_notify(focus_cycle_destroy_notify
);
63 void focus_cycle_stop()
65 if (focus_cycle_target
) {
66 focus_cycle(TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
);
67 focus_directional_cycle(0, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
);
71 static void focus_cycle_destroy_notify(ObClient
*client
, gpointer data
)
73 /* end cycling if the target disappears. CurrentTime is fine, time won't
76 if (focus_cycle_target
== client
)
77 focus_cycle(TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
);
80 /*! Returns if a focus target has valid group siblings that can be cycled
82 static gboolean
focus_target_has_siblings(ObClient
*ft
,
83 gboolean iconic_windows
,
84 gboolean all_desktops
)
89 if (!ft
->group
) return FALSE
;
91 for (it
= ft
->group
->members
; it
; it
= g_slist_next(it
)) {
92 ObClient
*c
= it
->data
;
93 /* check that it's not a helper window to avoid infinite recursion */
94 if (c
!= ft
&& !client_helper(c
) &&
95 focus_cycle_target_valid(c
, iconic_windows
, all_desktops
, FALSE
,
104 gboolean
focus_cycle_target_valid(ObClient
*ft
,
105 gboolean iconic_windows
,
106 gboolean all_desktops
,
107 gboolean dock_windows
,
108 gboolean desktop_windows
)
112 /* it's on this desktop unless you want all desktops.
114 do this check first because it will usually filter out the most
116 ok
= (all_desktops
|| ft
->desktop
== screen_desktop
||
117 ft
->desktop
== DESKTOP_ALL
);
119 /* the window can receive focus somehow */
120 ok
= ok
&& (ft
->can_focus
|| ft
->focus_notify
);
122 /* the window is not iconic, or we're allowed to go to iconic ones */
123 ok
= ok
&& (iconic_windows
|| !ft
->iconic
);
125 /* it's the right type of window */
126 if (dock_windows
|| desktop_windows
)
127 ok
= ok
&& ((dock_windows
&& ft
->type
== OB_CLIENT_TYPE_DOCK
) ||
128 (desktop_windows
&& ft
->type
== OB_CLIENT_TYPE_DESKTOP
));
129 /* modal windows are important and can always get focus if they are
130 visible and stuff, so don't change 'ok' based on their type */
132 /* normal non-helper windows are valid targets */
134 ((client_normal(ft
) && !client_helper(ft
))
136 /* helper windows are valid targets it... */
137 (client_helper(ft
) &&
138 /* ...a window in its group already has focus ... */
139 ((focus_client
&& ft
->group
== focus_client
->group
) ||
140 /* ... or if there are no other windows in its group
141 that can be cycled to instead */
142 !focus_target_has_siblings(ft
, iconic_windows
, all_desktops
))));
144 /* it's not set to skip the taskbar (unless it is a type that would be
145 expected to set this hint, or modal) */
146 ok
= ok
&& ((ft
->type
== OB_CLIENT_TYPE_DOCK
||
147 ft
->type
== OB_CLIENT_TYPE_DESKTOP
||
148 ft
->type
== OB_CLIENT_TYPE_TOOLBAR
||
149 ft
->type
== OB_CLIENT_TYPE_MENU
||
150 ft
->type
== OB_CLIENT_TYPE_UTILITY
) ||
154 /* it's not going to just send fous off somewhere else (modal window) */
155 ok
= ok
&& ft
== client_focus_target(ft
);
160 void focus_cycle(gboolean forward
, gboolean all_desktops
,
161 gboolean dock_windows
, gboolean desktop_windows
,
162 gboolean linear
, gboolean interactive
,
163 gboolean dialog
, gboolean done
, gboolean cancel
)
165 static ObClient
*first
= NULL
;
166 static ObClient
*t
= NULL
;
167 static GList
*order
= NULL
;
168 GList
*it
, *start
, *list
;
173 focus_cycle_target
= NULL
;
181 if (!first
) first
= focus_client
;
183 if (linear
) list
= client_list
;
184 else list
= focus_order
;
190 if (!focus_cycle_target
) focus_cycle_target
= focus_client
;
192 start
= it
= g_list_find(list
, focus_cycle_target
);
193 if (!start
) /* switched desktops or something? */
194 start
= it
= forward
? g_list_last(list
) : g_list_first(list
);
195 if (!start
) goto done_cycle
;
200 if (it
== NULL
) it
= g_list_first(list
);
203 if (it
== NULL
) it
= g_list_last(list
);
206 if (focus_cycle_target_valid(ft
, TRUE
,
207 all_desktops
, dock_windows
,
211 if (ft
!= focus_cycle_target
) { /* prevents flicker */
212 focus_cycle_target
= ft
;
213 focus_cycle_draw_indicator(ft
);
216 /* same arguments as focus_target_valid */
217 focus_cycle_popup_show(ft
, TRUE
,
218 all_desktops
, dock_windows
,
221 } else if (ft
!= focus_cycle_target
) {
222 focus_cycle_target
= ft
;
227 } while (it
!= start
);
230 if (done
&& focus_cycle_target
)
231 client_activate(focus_cycle_target
, FALSE
, TRUE
);
235 focus_cycle_target
= NULL
;
240 focus_cycle_draw_indicator(NULL
);
241 focus_cycle_popup_hide();
247 /* this be mostly ripped from fvwm */
248 static ObClient
*focus_find_directional(ObClient
*c
, ObDirection dir
,
249 gboolean dock_windows
,
250 gboolean desktop_windows
)
252 gint my_cx
, my_cy
, his_cx
, his_cy
;
255 gint score
, best_score
;
256 ObClient
*best_client
, *cur
;
262 /* first, find the centre coords of the currently focused window */
263 my_cx
= c
->frame
->area
.x
+ c
->frame
->area
.width
/ 2;
264 my_cy
= c
->frame
->area
.y
+ c
->frame
->area
.height
/ 2;
269 for(it
= g_list_first(client_list
); it
; it
= g_list_next(it
)) {
272 /* the currently selected window isn't interesting */
275 if (!focus_cycle_target_valid(it
->data
, FALSE
, FALSE
, dock_windows
,
279 /* find the centre coords of this window, from the
280 * currently focused window's point of view */
281 his_cx
= (cur
->frame
->area
.x
- my_cx
)
282 + cur
->frame
->area
.width
/ 2;
283 his_cy
= (cur
->frame
->area
.y
- my_cy
)
284 + cur
->frame
->area
.height
/ 2;
286 if(dir
== OB_DIRECTION_NORTHEAST
|| dir
== OB_DIRECTION_SOUTHEAST
||
287 dir
== OB_DIRECTION_SOUTHWEST
|| dir
== OB_DIRECTION_NORTHWEST
) {
289 /* Rotate the diagonals 45 degrees counterclockwise.
290 * To do this, multiply the matrix /+h +h\ with the
291 * vector (x y). \-h +h/
292 * h = sqrt(0.5). We can set h := 1 since absolute
293 * distance doesn't matter here. */
294 tx
= his_cx
+ his_cy
;
295 his_cy
= -his_cx
+ his_cy
;
300 case OB_DIRECTION_NORTH
:
301 case OB_DIRECTION_SOUTH
:
302 case OB_DIRECTION_NORTHEAST
:
303 case OB_DIRECTION_SOUTHWEST
:
304 offset
= (his_cx
< 0) ? -his_cx
: his_cx
;
305 distance
= ((dir
== OB_DIRECTION_NORTH
||
306 dir
== OB_DIRECTION_NORTHEAST
) ?
309 case OB_DIRECTION_EAST
:
310 case OB_DIRECTION_WEST
:
311 case OB_DIRECTION_SOUTHEAST
:
312 case OB_DIRECTION_NORTHWEST
:
313 offset
= (his_cy
< 0) ? -his_cy
: his_cy
;
314 distance
= ((dir
== OB_DIRECTION_WEST
||
315 dir
== OB_DIRECTION_NORTHWEST
) ?
320 /* the target must be in the requested direction */
324 /* Calculate score for this window. The smaller the better. */
325 score
= distance
+ offset
;
327 /* windows more than 45 degrees off the direction are
328 * heavily penalized and will only be chosen if nothing
329 * else within a million pixels */
330 if(offset
> distance
)
333 if(best_score
== -1 || score
< best_score
)
341 void focus_directional_cycle(ObDirection dir
, gboolean dock_windows
,
342 gboolean desktop_windows
, gboolean interactive
,
343 gboolean dialog
, gboolean done
, gboolean cancel
)
345 static ObClient
*first
= NULL
;
352 focus_cycle_target
= NULL
;
360 if (!first
) first
= focus_client
;
361 if (!focus_cycle_target
) focus_cycle_target
= focus_client
;
363 if (focus_cycle_target
)
364 ft
= focus_find_directional(focus_cycle_target
, dir
, dock_windows
,
369 for (it
= focus_order
; it
; it
= g_list_next(it
))
370 if (focus_cycle_target_valid(it
->data
, FALSE
, FALSE
, dock_windows
,
376 if (ft
!= focus_cycle_target
) {/* prevents flicker */
377 focus_cycle_target
= ft
;
378 focus_cycle_draw_indicator(ft
);
381 if (focus_cycle_target
&& dialog
) {
382 /* same arguments as focus_target_valid */
383 focus_cycle_popup_single_show(focus_cycle_target
,
384 FALSE
, FALSE
, dock_windows
,
390 if (done
&& focus_cycle_target
)
391 client_activate(focus_cycle_target
, FALSE
, TRUE
);
394 focus_cycle_target
= NULL
;
396 focus_cycle_draw_indicator(NULL
);
397 focus_cycle_popup_single_hide();