[Dmenu] Fix possible crash.

Don't pass empty string.

Issue: #1083

1 files changed, 10 insertions, 0 deletions

diff --git a/include/theme.h b/include/theme.h
index 751d83b3..0ed71460 100644
--- a/include/theme.h
+++ b/include/theme.h
@@ -249,6 +249,16 @@ double rofi_theme_get_double (  const widget *widget, const char *property, doub
  */
 void rofi_theme_get_color ( const widget *widget, const char *property, cairo_t *d );
 
+
+/**
+ * @param widget   The widget to query
+ * @param property The property to query.
+ *
+ * Check if a rofi theme has a property set.
+ *
+ */
+gboolean rofi_theme_has_property ( const widget *widget, const char *property );
+
 /**
  * @param widget   The widget to query
  * @param property The property to query.