use a new unhandled (thus far) exception rather than ::abort() when an action is undefined

1 files changed, 9 insertions, 0 deletions

diff --git a/libs/gtkmm2ext/gtkmm2ext/actions.h b/libs/gtkmm2ext/gtkmm2ext/actions.h
index 780c846d58..8eae2eeb6b 100644
--- a/libs/gtkmm2ext/gtkmm2ext/actions.h
+++ b/libs/gtkmm2ext/gtkmm2ext/actions.h
@@ -21,6 +21,7 @@
 #define __libgtkmm2ext_actions_h__
 
 #include <vector>
+#include <exception>
 
 #include <gtkmm/action.h>
 #include <gtkmm/radioaction.h>
@@ -51,6 +52,14 @@ namespace ActionManager {
  *
  */
 
+	class LIBGTKMM2EXT_API MissingActionException : public std::exception {
+	  public:
+		MissingActionException (std::string const & str);
+		const char *what() const throw();
+	  private:
+		std::string missing_action_name;
+	};
+
 	LIBGTKMM2EXT_API extern void init ();
 
 	LIBGTKMM2EXT_API extern std::string unbound_string;  /* the key string returned if an action is not bound */