Dogcows Code - chaz/openbox/blob - openbox/grab.c

   1 #include "openbox.h"
   2 #include "event.h"
   3
   4 #include <glib.h>
   5 #include <X11/Xlib.h>
   6
   7 static guint kgrabs, pgrabs, sgrabs;
   8
   9 #define MASK_LIST_SIZE 8
  10
  11 /*! A list of all possible combinations of keyboard lock masks */
  12 static unsigned int mask_list[MASK_LIST_SIZE];
  13
  14 void grab_keyboard(gboolean grab)
  15 {
  16     if (grab) {
  17         if (kgrabs++ == 0)
  18             XGrabKeyboard(ob_display, ob_root, 0, GrabModeAsync, GrabModeSync,
  19                           CurrentTime);
  20     } else if (kgrabs > 0) {
  21         if (--kgrabs == 0)
  22             XUngrabKeyboard(ob_display, CurrentTime);
  23     }
  24 }
  25
  26 void grab_pointer(gboolean grab, Cursor cur)
  27 {
  28     if (grab) {
  29         if (pgrabs++ == 0)
  30             XGrabPointer(ob_display, ob_root, False, 0, GrabModeAsync,
  31                          GrabModeAsync, FALSE, cur, CurrentTime);
  32     } else if (pgrabs > 0) {
  33         if (--pgrabs == 0)
  34             XUngrabPointer(ob_display, CurrentTime);
  35     }
  36 }
  37
  38 void grab_server(gboolean grab)
  39 {
  40     if (grab) {
  41         if (sgrabs++ == 0) {
  42             XGrabServer(ob_display);
  43             XSync(ob_display, FALSE);
  44         }
  45     } else if (sgrabs > 0) {
  46         if (--sgrabs == 0) {
  47             XUngrabServer(ob_display);
  48             XFlush(ob_display);
  49         }
  50     }
  51 }
  52
  53 void grab_startup()
  54 {
  55     guint i = 0;
  56
  57     kgrabs = pgrabs = sgrabs = 0;
  58
  59     mask_list[i++] = 0;
  60     mask_list[i++] = LockMask;
  61     mask_list[i++] = NumLockMask;
  62     mask_list[i++] = LockMask | NumLockMask;
  63     mask_list[i++] = ScrollLockMask;
  64     mask_list[i++] = ScrollLockMask | LockMask;
  65     mask_list[i++] = ScrollLockMask | NumLockMask;
  66     mask_list[i++] = ScrollLockMask | LockMask | NumLockMask;
  67     g_assert(i == MASK_LIST_SIZE);
  68 }
  69
  70 void grab_shutdown()
  71 {
  72     while (kgrabs) grab_keyboard(FALSE);
  73     while (pgrabs) grab_pointer(FALSE, None);
  74     while (sgrabs) grab_server(FALSE);
  75 }
  76
  77 void grab_button(guint button, guint state, Window win, guint mask,
  78                  int pointer_mode)
  79 {
  80     guint i;
  81
  82     for (i = 0; i < MASK_LIST_SIZE; ++i)
  83         XGrabButton(ob_display, button, state | mask_list[i], win, FALSE, mask,
  84                     pointer_mode, GrabModeAsync, None, None);
  85 }
  86
  87 void ungrab_button(guint button, guint state, Window win)
  88 {
  89     guint i;
  90
  91     for (i = 0; i < MASK_LIST_SIZE; ++i)
  92         XUngrabButton(ob_display, button, state | mask_list[i], win);
  93 }
  94
  95 void grab_key(guint keycode, guint state, int keyboard_mode)
  96 {
  97     guint i;
  98
  99     for (i = 0; i < MASK_LIST_SIZE; ++i)
 100         XGrabKey(ob_display, keycode, state | mask_list[i], ob_root, FALSE,
 101                  GrabModeAsync, keyboard_mode);
 102 }
 103
 104 void ungrab_all_keys()
 105 {
 106     XUngrabKey(ob_display, AnyKey, AnyModifier, ob_root);
 107 }