disable warping on desk switch
[dana/openbox.git] / plugins / focus.c
1 #include "../kernel/dispatch.h"
2 #include "../kernel/screen.h"
3 #include "../kernel/client.h"
4 #include "../kernel/frame.h"
5 #include "../kernel/focus.h"
6 #include "../kernel/stacking.h"
7 #include "../kernel/openbox.h"
8
9 /* config options */
10 static gboolean follow_mouse = TRUE;
11 static gboolean warp_on_desk_switch = FALSE;
12 static gboolean focus_new = FALSE;
13
14 static int skip_enter = 0;
15
16 static gboolean focus_under_pointer()
17 {
18     Window w;
19     int i, x, y;
20     guint u;
21     GList *it;
22
23     if (XQueryPointer(ob_display, ob_root, &w, &w, &x, &y, &i, &i, &u))
24     {
25         for (it = stacking_list; it != NULL; it = it->next) {
26             Client *c = it->data;
27             if (c->desktop == screen_desktop &&
28                 RECT_CONTAINS(c->frame->area, x, y))
29                 break;
30         }
31         if (it != NULL) {
32             client_focus(it->data);
33             return TRUE;
34         }
35     }
36     return FALSE;
37 }
38
39 static void focus_fallback(gboolean switching_desks)
40 {
41     GList *it;
42
43     for (it = focus_order[screen_desktop]; it != NULL; it = it->next)
44         if (client_normal(it->data) && client_focus(it->data)) {
45             if (switching_desks) {
46                 XEvent e;
47                 Client *c = it->data;
48
49                 /* XXX... not anymore
50                    skip the next enter event from the desktop switch so focus
51                    doesn't skip briefly to what was under the pointer */
52
53                 /* kill all enter events from prior to the desktop switch, we
54                    aren't interested in them if we have found our own target
55                    to focus.
56                    XXX this is rude to other plugins...can this be done
57                    better? count the events in the queue? */
58                 while (XCheckTypedEvent(ob_display, EnterNotify, &e));
59 /*                    XPutBackEvent(ob_display, &e);
60                     g_message("skip");
61                     ++skip_enter;
62                     }*/
63
64                 if (warp_on_desk_switch) {
65                     /* I have to do this warp twice! Otherwise windows dont get
66                        Enter/Leave events when i warp on a desktop switch! */
67                     XWarpPointer(ob_display, None, c->window, 0, 0, 0, 0,
68                                  c->area.width / 2, c->area.height / 2);
69                     XWarpPointer(ob_display, None, c->window, 0, 0, 0, 0,
70                                  c->area.width / 2, c->area.height / 2);
71                 }
72             }
73             break;
74         }
75 }
76
77 static void events(ObEvent *e, void *foo)
78 {
79     switch (e->type) {
80     case Event_Client_Mapped:
81         if (focus_new && client_normal(e->data.c.client))
82             client_focus(e->data.c.client);
83         break;
84
85     case Event_Client_Unmapped:
86         if (ob_state == State_Exiting) break;
87
88         if (e->data.c.client->focused)
89             if (!follow_mouse || !focus_under_pointer())
90                 focus_fallback(FALSE);
91         break;
92
93     case Event_Client_Desktop:
94         /* focus the next available target if moving from the current
95            desktop. */
96         if ((unsigned)e->data.c.num[1] == screen_desktop)
97             if (!follow_mouse || !focus_under_pointer())
98                 focus_fallback(FALSE);
99
100     case Event_Ob_Desktop:
101         focus_fallback(TRUE);
102         break;
103
104     case Event_X_EnterNotify:
105         if (skip_enter) {
106             if (e->data.x.client != NULL)
107                 g_message("skipped enter %lx", e->data.x.client->window);
108             else
109                 g_message("skipped enter 'root'");
110             --skip_enter;
111         }
112         else if (e->data.x.client != NULL && client_normal(e->data.x.client)) {
113             g_message("enter %lx", e->data.x.client->window);
114             client_focus(e->data.x.client);
115         }
116         break;
117
118     default:
119         g_assert_not_reached();
120     }
121 }
122
123 void plugin_startup()
124 {
125     dispatch_register(Event_Client_Mapped | 
126                       Event_Ob_Desktop | 
127                       Event_Client_Unmapped |
128                       Event_X_EnterNotify,
129                       (EventHandler)events, NULL);
130 }
131
132 void plugin_shutdown()
133 {
134     dispatch_register(0, (EventHandler)events, NULL);
135 }