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
);
69 static void focus_cycle_destroy_notify(ObClient
*client
, gpointer data
)
71 /* end cycling if the target disappears. CurrentTime is fine, time won't
74 if (focus_cycle_target
== client
)
75 focus_cycle(TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
, TRUE
);
78 /*! Returns if a focus target has valid group siblings that can be cycled
80 static gboolean
focus_target_has_siblings(ObClient
*ft
,
81 gboolean iconic_windows
,
82 gboolean all_desktops
)
87 if (!ft
->group
) return FALSE
;
89 for (it
= ft
->group
->members
; it
; it
= g_slist_next(it
)) {
90 ObClient
*c
= it
->data
;
91 /* check that it's not a helper window to avoid infinite recursion */
92 if (c
!= ft
&& !client_helper(c
) &&
93 focus_cycle_target_valid(c
, iconic_windows
, all_desktops
, FALSE
,
102 gboolean
focus_cycle_target_valid(ObClient
*ft
,
103 gboolean iconic_windows
,
104 gboolean all_desktops
,
105 gboolean dock_windows
,
106 gboolean desktop_windows
)
110 /* it's on this desktop unless you want all desktops.
112 do this check first because it will usually filter out the most
114 ok
= (all_desktops
|| ft
->desktop
== screen_desktop
||
115 ft
->desktop
== DESKTOP_ALL
);
117 /* the window can receive focus somehow */
118 ok
= ok
&& (ft
->can_focus
|| ft
->focus_notify
);
120 /* the window is not iconic, or we're allowed to go to iconic ones */
121 ok
= ok
&& (iconic_windows
|| !ft
->iconic
);
123 /* it's the right type of window */
124 if (dock_windows
|| desktop_windows
)
125 ok
= ok
&& ((dock_windows
&& ft
->type
== OB_CLIENT_TYPE_DOCK
) ||
126 (desktop_windows
&& ft
->type
== OB_CLIENT_TYPE_DESKTOP
));
128 /* normal non-helper windows are valid targets */
130 ((client_normal(ft
) && !client_helper(ft
))
132 /* helper windows are valid targets it... */
133 (client_helper(ft
) &&
134 /* ...a window in its group already has focus ... */
135 ((focus_client
&& ft
->group
== focus_client
->group
) ||
136 /* ... or if there are no other windows in its group
137 that can be cycled to instead */
138 !focus_target_has_siblings(ft
, iconic_windows
, all_desktops
))));
140 /* it's not set to skip the taskbar (unless it is a type that would be
141 expected to set this hint */
142 ok
= ok
&& ((ft
->type
== OB_CLIENT_TYPE_DOCK
||
143 ft
->type
== OB_CLIENT_TYPE_DESKTOP
||
144 ft
->type
== OB_CLIENT_TYPE_TOOLBAR
||
145 ft
->type
== OB_CLIENT_TYPE_MENU
||
146 ft
->type
== OB_CLIENT_TYPE_UTILITY
) ||
149 /* it's not going to just send fous off somewhere else (modal window) */
150 ok
= ok
&& ft
== client_focus_target(ft
);
155 void focus_cycle(gboolean forward
, gboolean all_desktops
,
156 gboolean dock_windows
, gboolean desktop_windows
,
157 gboolean linear
, gboolean interactive
,
158 gboolean dialog
, gboolean done
, gboolean cancel
)
160 static ObClient
*first
= NULL
;
161 static ObClient
*t
= NULL
;
162 static GList
*order
= NULL
;
163 GList
*it
, *start
, *list
;
168 focus_cycle_target
= NULL
;
176 if (!first
) first
= focus_client
;
178 if (linear
) list
= client_list
;
179 else list
= focus_order
;
185 if (!focus_cycle_target
) focus_cycle_target
= focus_client
;
187 start
= it
= g_list_find(list
, focus_cycle_target
);
188 if (!start
) /* switched desktops or something? */
189 start
= it
= forward
? g_list_last(list
) : g_list_first(list
);
190 if (!start
) goto done_cycle
;
195 if (it
== NULL
) it
= g_list_first(list
);
198 if (it
== NULL
) it
= g_list_last(list
);
201 if (focus_cycle_target_valid(ft
, TRUE
,
202 all_desktops
, dock_windows
,
206 if (ft
!= focus_cycle_target
) { /* prevents flicker */
207 focus_cycle_target
= ft
;
208 focus_cycle_draw_indicator(ft
);
211 /* same arguments as focus_target_valid */
212 focus_cycle_popup_show(ft
, TRUE
,
213 all_desktops
, dock_windows
,
216 } else if (ft
!= focus_cycle_target
) {
217 focus_cycle_target
= ft
;
222 } while (it
!= start
);
225 if (done
&& focus_cycle_target
)
226 client_activate(focus_cycle_target
, FALSE
, TRUE
);
230 focus_cycle_target
= NULL
;
235 focus_cycle_draw_indicator(NULL
);
236 focus_cycle_popup_hide();
242 /* this be mostly ripped from fvwm */
243 static ObClient
*focus_find_directional(ObClient
*c
, ObDirection dir
,
244 gboolean dock_windows
,
245 gboolean desktop_windows
)
247 gint my_cx
, my_cy
, his_cx
, his_cy
;
250 gint score
, best_score
;
251 ObClient
*best_client
, *cur
;
257 /* first, find the centre coords of the currently focused window */
258 my_cx
= c
->frame
->area
.x
+ c
->frame
->area
.width
/ 2;
259 my_cy
= c
->frame
->area
.y
+ c
->frame
->area
.height
/ 2;
264 for(it
= g_list_first(client_list
); it
; it
= g_list_next(it
)) {
267 /* the currently selected window isn't interesting */
270 if (!focus_cycle_target_valid(it
->data
, FALSE
, FALSE
, dock_windows
,
274 /* find the centre coords of this window, from the
275 * currently focused window's point of view */
276 his_cx
= (cur
->frame
->area
.x
- my_cx
)
277 + cur
->frame
->area
.width
/ 2;
278 his_cy
= (cur
->frame
->area
.y
- my_cy
)
279 + cur
->frame
->area
.height
/ 2;
281 if(dir
== OB_DIRECTION_NORTHEAST
|| dir
== OB_DIRECTION_SOUTHEAST
||
282 dir
== OB_DIRECTION_SOUTHWEST
|| dir
== OB_DIRECTION_NORTHWEST
) {
284 /* Rotate the diagonals 45 degrees counterclockwise.
285 * To do this, multiply the matrix /+h +h\ with the
286 * vector (x y). \-h +h/
287 * h = sqrt(0.5). We can set h := 1 since absolute
288 * distance doesn't matter here. */
289 tx
= his_cx
+ his_cy
;
290 his_cy
= -his_cx
+ his_cy
;
295 case OB_DIRECTION_NORTH
:
296 case OB_DIRECTION_SOUTH
:
297 case OB_DIRECTION_NORTHEAST
:
298 case OB_DIRECTION_SOUTHWEST
:
299 offset
= (his_cx
< 0) ? -his_cx
: his_cx
;
300 distance
= ((dir
== OB_DIRECTION_NORTH
||
301 dir
== OB_DIRECTION_NORTHEAST
) ?
304 case OB_DIRECTION_EAST
:
305 case OB_DIRECTION_WEST
:
306 case OB_DIRECTION_SOUTHEAST
:
307 case OB_DIRECTION_NORTHWEST
:
308 offset
= (his_cy
< 0) ? -his_cy
: his_cy
;
309 distance
= ((dir
== OB_DIRECTION_WEST
||
310 dir
== OB_DIRECTION_NORTHWEST
) ?
315 /* the target must be in the requested direction */
319 /* Calculate score for this window. The smaller the better. */
320 score
= distance
+ offset
;
322 /* windows more than 45 degrees off the direction are
323 * heavily penalized and will only be chosen if nothing
324 * else within a million pixels */
325 if(offset
> distance
)
328 if(best_score
== -1 || score
< best_score
)
336 void focus_directional_cycle(ObDirection dir
, gboolean dock_windows
,
337 gboolean desktop_windows
, gboolean interactive
,
338 gboolean dialog
, gboolean done
, gboolean cancel
)
340 static ObClient
*first
= NULL
;
347 focus_cycle_target
= NULL
;
355 if (!first
) first
= focus_client
;
356 if (!focus_cycle_target
) focus_cycle_target
= focus_client
;
358 if (focus_cycle_target
)
359 ft
= focus_find_directional(focus_cycle_target
, dir
, dock_windows
,
364 for (it
= focus_order
; it
; it
= g_list_next(it
))
365 if (focus_cycle_target_valid(it
->data
, FALSE
, FALSE
, dock_windows
,
371 if (ft
!= focus_cycle_target
) {/* prevents flicker */
372 focus_cycle_target
= ft
;
373 focus_cycle_draw_indicator(ft
);
376 if (focus_cycle_target
&& dialog
) {
377 /* same arguments as focus_target_valid */
378 focus_cycle_popup_single_show(focus_cycle_target
,
379 FALSE
, FALSE
, dock_windows
,
385 if (done
&& focus_cycle_target
)
386 client_activate(focus_cycle_target
, FALSE
, TRUE
);
389 focus_cycle_target
= NULL
;
391 focus_cycle_draw_indicator(NULL
);
392 focus_cycle_popup_single_hide();
397 void focus_order_add_new(ObClient
*c
)
400 focus_order_to_top(c
);
402 g_assert(!g_list_find(focus_order
, c
));
403 /* if there are any iconic windows, put this above them in the order,
404 but if there are not, then put it under the currently focused one */
405 if (focus_order
&& ((ObClient
*)focus_order
->data
)->iconic
)
406 focus_order
= g_list_insert(focus_order
, c
, 0);
408 focus_order
= g_list_insert(focus_order
, c
, 1);