diff --git a/src/sugar/_sugarext.defs b/src/sugar/_sugarext.defs index 02b673cf..6e741dca 100644 --- a/src/sugar/_sugarext.defs +++ b/src/sugar/_sugarext.defs @@ -121,6 +121,16 @@ ) ) +(define-method is_modifier + (of-object "SugarKeyGrabber") + (c-name "sugar_key_grabber_is_modifier") + (return-type "gboolean") + (parameters + '("guint" "keycode") + '("guint" "mask" (default "-1")) + ) +) + ;; From sexy-icon-entry.h (define-function sexy_icon_entry_get_type diff --git a/src/sugar/sugar-key-grabber.c b/src/sugar/sugar-key-grabber.c index baddab52..8e18c864 100644 --- a/src/sugar/sugar-key-grabber.c +++ b/src/sugar/sugar-key-grabber.c @@ -217,3 +217,42 @@ sugar_key_grabber_grab(SugarKeyGrabber *grabber, const char *key) grabber->keys = g_list_append(grabber->keys, keyinfo); } + +gboolean +sugar_key_grabber_is_modifier(SugarKeyGrabber *grabber, guint keycode, guint mask) +{ + Display *xdisplay; + XModifierKeymap *modmap; + gint start, end, i, mod_index; + gboolean is_modifier = FALSE; + + xdisplay = gdk_x11_drawable_get_xdisplay(GDK_DRAWABLE (grabber->root)); + + modmap = XGetModifierMapping(xdisplay); + + if (mask != -1) { + mod_index = 0; + mask = mask >> 1; + while (mask != 0) { + mask = mask >> 1; + mod_index += 1; + } + start = mod_index * modmap->max_keypermod; + end = (mod_index + 1) * modmap->max_keypermod; + } else { + start = 0; + end = 8 * modmap->max_keypermod; + } + + for (i = start; i < end; i++) { + if (keycode == modmap->modifiermap[i]) { + is_modifier = TRUE; + break; + } + } + + XFreeModifiermap (modmap); + + return is_modifier; +} + diff --git a/src/sugar/sugar-key-grabber.h b/src/sugar/sugar-key-grabber.h index 5b734e7a..f131ee3f 100644 --- a/src/sugar/sugar-key-grabber.h +++ b/src/sugar/sugar-key-grabber.h @@ -60,6 +60,9 @@ void sugar_key_grabber_grab (SugarKeyGrabber *grabber, char *sugar_key_grabber_get_key (SugarKeyGrabber *grabber, guint keycode, guint state); +gboolean sugar_key_grabber_is_modifier (SugarKeyGrabber *grabber, + guint keycode, + guint mask); G_END_DECLS