From 8652a46dd7a38633a8c7f5bfe06822a6964dd9af Mon Sep 17 00:00:00 2001
From: Hedzr Yeh <hedzrz@gmail.com>
Date: Sun, 9 Mar 2025 09:14:58 +0800
Subject: [PATCH] cmdr: add App.OnAction

---
 builder/app.go  | 27 +++++++++++++++++++++++++++
 cli/app.go      |  2 ++
 cli/for_test.go |  4 ++++
 3 files changed, 33 insertions(+)

diff --git a/builder/app.go b/builder/app.go
index b45b01f..6f0d6ad 100644
--- a/builder/app.go
+++ b/builder/app.go
@@ -221,6 +221,33 @@ func (s *appS) RootBuilder(cb func(b cli.CommandBuilder)) cli.App {
 	return s
 }
 
+func (s *appS) OnAction(handler cli.OnInvokeHandler) cli.App {
+	s.RootBuilder(func(b cli.CommandBuilder) {
+		b.OnAction(handler)
+	})
+	return s
+}
+
+// func (s *ccb) OnAction(handler cli.OnInvokeHandler) cli.CommandBuilder {
+// 	s.SetAction(handler)
+// 	return s
+// }
+//
+// func (s *ccb) OnPreAction(handlers ...cli.OnPreInvokeHandler) cli.CommandBuilder {
+// 	s.SetPreActions(handlers...)
+// 	return s
+// }
+//
+// func (s *ccb) OnPostAction(handlers ...cli.OnPostInvokeHandler) cli.CommandBuilder {
+// 	s.SetPostActions(handlers...)
+// 	return s
+// }
+//
+// func (s *ccb) OnMatched(handler cli.OnCommandMatchedHandler) cli.CommandBuilder {
+// 	s.SetOnMatched(handler)
+// 	return s
+// }
+
 func (s *appS) AddCmd(cb func(b cli.CommandBuilder)) cli.App {
 	b := newCommandBuilderShort(s, "")
 	defer b.Build()
diff --git a/cli/app.go b/cli/app.go
index 7f8dce9..8a83bd0 100644
--- a/cli/app.go
+++ b/cli/app.go
@@ -45,6 +45,8 @@ type App interface {
 	Header(headerLine string) App                  // setup header line(s) instead of copyright+author fields
 	Footer(footerLine string) App                  // setup footer line(s)
 
+	OnAction(handler OnInvokeHandler) App
+
 	// Examples(examples ...string) App               // set examples field of root command
 
 	RootCommand() *RootCommand            // get root command
diff --git a/cli/for_test.go b/cli/for_test.go
index 571b383..a3fff30 100644
--- a/cli/for_test.go
+++ b/cli/for_test.go
@@ -1091,6 +1091,10 @@ func (s *appS) Footer(footerLine string) App {
 	return s
 }
 
+func (s *appS) OnAction(handler OnInvokeHandler) App {
+	return s
+}
+
 func (s *appS) SetRootCommand(root *RootCommand) App {
 	s.root = root
 	return s