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 = TRUE;
  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 event(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 (client_focused(e->data.c.client))
  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*/
 113         if (e->data.x.client != NULL && client_normal(e->data.x.client))
 114             client_focus(e->data.x.client);
 115         break;
 116
 117     default:
 118         g_assert_not_reached();
 119     }
 120 }
 121
 122 void plugin_startup()
 123 {
 124     dispatch_register(Event_Client_Mapped |
 125                       Event_Ob_Desktop |
 126                       Event_Client_Unmapped |
 127                       Event_X_EnterNotify,
 128                       (EventHandler)event, NULL);
 129 }
 130
 131 void plugin_shutdown()
 132 {
 133     dispatch_register(0, (EventHandler)event, NULL);
 134 }