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@ -217,3 +217,42 @@ sugar_key_grabber_grab(SugarKeyGrabber *grabber, const char *key)
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grabber->keys = g_list_append(grabber->keys, keyinfo);
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}
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gboolean
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sugar_key_grabber_is_modifier(SugarKeyGrabber *grabber, guint keycode, guint mask)
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{
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Display *xdisplay;
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XModifierKeymap *modmap;
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gint start, end, i, mod_index;
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gboolean is_modifier = FALSE;
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xdisplay = gdk_x11_drawable_get_xdisplay(GDK_DRAWABLE (grabber->root));
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modmap = XGetModifierMapping(xdisplay);
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if (mask != -1) {
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mod_index = 0;
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mask = mask >> 1;
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while (mask != 0) {
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mask = mask >> 1;
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mod_index += 1;
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}
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start = mod_index * modmap->max_keypermod;
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end = (mod_index + 1) * modmap->max_keypermod;
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} else {
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start = 0;
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end = 8 * modmap->max_keypermod;
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}
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for (i = start; i < end; i++) {
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if (keycode == modmap->modifiermap[i]) {
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is_modifier = TRUE;
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break;
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}
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}
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XFreeModifiermap (modmap);
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return is_modifier;
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}
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