From 8bb26628e392429c8a868af3d92cb79ee52a0fc7 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 26 Apr 2017 19:45:03 +0200
Subject: Skip script-setup if there are no parameters (and name is unique)

---
 gtk2_ardour/luainstance.cc     | 13 ++++++++-----
 gtk2_ardour/script_selector.cc | 29 ++++++++++++++++++++++-------
 gtk2_ardour/script_selector.h  |  2 ++
 3 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/gtk2_ardour/luainstance.cc b/gtk2_ardour/luainstance.cc
index e1c04bf435..d8a1ce6382 100644
--- a/gtk2_ardour/luainstance.cc
+++ b/gtk2_ardour/luainstance.cc
@@ -1235,11 +1235,14 @@ LuaInstance::interactive_add (LuaScriptInfo::ScriptType type, int id)
 	LuaScriptParamList lsp = LuaScriptParams::script_params (spi, param_function);
 
 	ScriptParameterDialog spd (_("Set Script Parameters"), spi, reg, lsp);
-	switch (spd.run ()) {
-		case Gtk::RESPONSE_ACCEPT:
-			break;
-		default:
-			return false;
+
+	if (!spd.need_interation ()) {
+		switch (spd.run ()) {
+			case Gtk::RESPONSE_ACCEPT:
+				break;
+			default:
+				return false;
+		}
 	}
 
 	LuaScriptParamPtr lspp (new LuaScriptParam("x-script-origin", "", spi->path, false));
diff --git a/gtk2_ardour/script_selector.cc b/gtk2_ardour/script_selector.cc
index c13b122cd1..0861c27099 100644
--- a/gtk2_ardour/script_selector.cc
+++ b/gtk2_ardour/script_selector.cc
@@ -204,23 +204,38 @@ ScriptParameterDialog::ScriptParameterDialog (std::string title,
 	update_sensitivity ();
 }
 
-void
-ScriptParameterDialog::update_sensitivity ()
+bool
+ScriptParameterDialog::need_interation () const
+{
+	if (_lsp.size () > 0) {
+		return false;
+	}
+	if (!parameters_ok ()) {
+		return false;
+	}
+	return true;
+}
+
+bool
+ScriptParameterDialog::parameters_ok () const
 {
 	std::string n = _name_entry.get_text ();
 	if (n.empty() || std::find (_existing_names.begin(), _existing_names.end(), n) != _existing_names.end()) {
-		_add->set_sensitive (false);
-		return;
+		return false;
 	}
 
 	for (size_t i = 0; i < _lsp.size(); ++i) {
 		if (!_lsp[i]->optional && _lsp[i]->value.empty()) {
-			_add->set_sensitive (false);
-			return;
+			return false;
 		}
 	}
+	return true;
+}
 
-	_add->set_sensitive (true);
+void
+ScriptParameterDialog::update_sensitivity ()
+{
+	_add->set_sensitive (parameters_ok ());
 }
 
 void
diff --git a/gtk2_ardour/script_selector.h b/gtk2_ardour/script_selector.h
index b249cfe273..e7285807f7 100644
--- a/gtk2_ardour/script_selector.h
+++ b/gtk2_ardour/script_selector.h
@@ -60,9 +60,11 @@ class ScriptParameterDialog : public ArdourDialog
 public:
 	ScriptParameterDialog (std::string title, const ARDOUR::LuaScriptInfoPtr&, const std::vector<std::string>&, ARDOUR::LuaScriptParamList&);
 	std::string name () { return _name_entry.get_text (); }
+	bool need_interation () const;
 
 private:
 	void update_sensitivity ();
+	bool parameters_ok () const;
 	void active_changed (int, Gtk::CheckButton*, Gtk::Entry*);
 	void value_changed (int, Gtk::Entry*);
 
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