provide functions for grabbing and ungrabbing the keyboard and pointer

1 files changed, 40 insertions, 0 deletions

diff --git a/openbox/grab.c b/openbox/grab.c
new file mode 100644
index 00000000..3bba14b3
--- /dev/null
+++ b/openbox/grab.c
@@ -0,0 +1,40 @@
+#include "openbox.h"
+#include <glib.h>
+#include <X11/Xlib.h>
+
+static guint kgrabs, pgrabs;
+
+void grab_keyboard(gboolean grab)
+{
+    if (grab) {
+        if (kgrabs++ == 0)
+            XGrabKeyboard(ob_display, ob_root, 0, GrabModeAsync, GrabModeSync,
+                          CurrentTime);
+    } else if (kgrabs > 0) {
+        if (--kgrabs == 0)
+            XUngrabKeyboard(ob_display, CurrentTime);
+    }
+}
+
+void grab_pointer(gboolean grab, Cursor cur)
+{
+    if (grab) {
+        if (pgrabs++ == 0)
+            XGrabPointer(ob_display, ob_root, False, 0, GrabModeAsync,
+                         GrabModeSync, FALSE, cur, CurrentTime);
+    } else if (pgrabs > 0) {
+        if (--pgrabs == 0)
+            XUngrabPointer(ob_display, CurrentTime);
+    }
+}
+
+void grab_startup()
+{
+    kgrabs = pgrabs = 0;
+}
+
+void grab_shutdown()
+{
+    while (kgrabs) grab_keyboard(FALSE);
+    while (pgrabs) grab_pointer(FALSE, None);
+}