From d1216b5891dd8771d2db118523a111c02bffd83a Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@klayout.de>
Date: Sat, 30 Mar 2024 00:21:41 +0100
Subject: [PATCH] WIP

---
 src/edt/edt/edtEditorHooks.cc |  2 +
 src/edt/edt/edtEditorHooks.h  | 82 +++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/src/edt/edt/edtEditorHooks.cc b/src/edt/edt/edtEditorHooks.cc
index f9bacc137..5641ddd20 100644
--- a/src/edt/edt/edtEditorHooks.cc
+++ b/src/edt/edt/edtEditorHooks.cc
@@ -31,6 +31,8 @@ namespace edt
 // ---------------------------------------------------------------
 //  EditorHooksManager definition and implementation
 
+class EditorHooksManager;
+
 static EditorHooksManager *sp_instance = 0;
 static bool sp_instance_initialized = false;
 
diff --git a/src/edt/edt/edtEditorHooks.h b/src/edt/edt/edtEditorHooks.h
index a442dbf00..5a557a4b3 100644
--- a/src/edt/edt/edtEditorHooks.h
+++ b/src/edt/edt/edtEditorHooks.h
@@ -28,6 +28,7 @@
 #include "edtCommon.h"
 #include "dbTrans.h"
 #include "gsiObject.h"
+#include "tlExceptions.h"
 
 #include <set>
 #include <string>
@@ -161,6 +162,87 @@ private:
   EditorHooks (const EditorHooks &);
 };
 
+/**
+ *  @brief A helper function to call editor hooks in the right sequence and with error handling
+ */
+
+inline
+void call_editor_hooks (const std::vector<EditorHooks *> &hooks, void (EditorHooks::*meth) ())
+{
+  for (auto h = hooks.begin (); h != hooks.end (); ++h) {
+BEGIN_PROTECTED
+    try {
+      ((*h)->*meth) ();
+    } catch (tl::CancelException &) {
+      return;
+    }
+END_PROTECTED
+  }
+}
+
+/**
+ *  @brief A helper function to call editor hooks in the right sequence and with error handling
+ *
+ *  This version provides one argument
+ */
+
+template <class A1>
+inline
+void call_editor_hooks (const std::vector<EditorHooks *> &hooks, void (EditorHooks::*meth) (A1), A1 a1)
+{
+  for (auto h = hooks.begin (); h != hooks.end (); ++h) {
+BEGIN_PROTECTED
+    try {
+      ((*h)->*meth) (a1);
+    } catch (tl::CancelException &) {
+      return;
+    }
+END_PROTECTED
+  }
+}
+
+/**
+ *  @brief A helper function to call editor hooks in the right sequence and with error handling
+ *
+ *  This version provides two arguments
+ */
+
+template <class A1, class A2>
+inline
+void call_editor_hooks (const std::vector<EditorHooks *> &hooks, void (EditorHooks::*meth) (A1, A2), A1 a1, A2 a2)
+{
+  for (auto h = hooks.begin (); h != hooks.end (); ++h) {
+BEGIN_PROTECTED
+    try {
+      ((*h)->*meth) (a1, a2);
+    } catch (tl::CancelException &) {
+      return;
+    }
+END_PROTECTED
+  }
+}
+
+/**
+ *  @brief A helper function to call editor hooks in the right sequence and with error handling
+ *
+ *  This version provides three arguments
+ */
+
+template <class A1, class A2, class A3>
+inline
+void call_editor_hooks (const std::vector<EditorHooks *> &hooks, void (EditorHooks::*meth) (A1, A2), A1 a1, A2 a2, A3 a3)
+{
+  for (auto h = hooks.begin (); h != hooks.end (); ++h) {
+BEGIN_PROTECTED
+    try {
+      ((*h)->*meth) (a1, a2, a3);
+    } catch (tl::CancelException &) {
+      return;
+    }
+END_PROTECTED
+  }
+}
+
 }
 
 #endif