From c2f9074643d7db294355b84598f51f7ae6b15d7e Mon Sep 17 00:00:00 2001
From: Trevor Slocum <trevor@rocketnine.space>
Date: Fri, 12 Nov 2021 15:18:03 -0800
Subject: [PATCH] Add TabbedPanels.SetChangedFunc

Resolves #80.
---
 CHANGELOG       |  1 +
 go.mod          |  7 +++----
 go.sum          | 13 ++++++-------
 tabbedpanels.go |  6 ++++++
 4 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 7e9ec1c..49af60b 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,5 @@
 v1.5.8 (WIP)
+- Add TabbedPanels.SetChangedFunc
 - Fix some missing ANSI translations 
 
 v1.5.7 (2021-09-01)
diff --git a/go.mod b/go.mod
index 2d0ea33..22aff5a 100644
--- a/go.mod
+++ b/go.mod
@@ -4,11 +4,10 @@ go 1.12
 
 require (
 	code.rocketnine.space/tslocum/cbind v0.1.5
-	github.com/gdamore/tcell/v2 v2.4.1-0.20210828201608-73703f7ed490
+	github.com/gdamore/tcell/v2 v2.4.1-0.20211027054709-8fc0c2be8f7d
 	github.com/lucasb-eyer/go-colorful v1.2.0
 	github.com/mattn/go-runewidth v0.0.14-0.20210830053702-dc8fe66265af
 	github.com/rivo/uniseg v0.2.0
-	golang.org/x/sys v0.0.0-20210831042530-f4d43177bf5e // indirect
-	golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b // indirect
-	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/sys v0.0.0-20211112193437-faf0a1b62c6b // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 )
diff --git a/go.sum b/go.sum
index 2a8f74e..4944ca7 100644
--- a/go.sum
+++ b/go.sum
@@ -3,8 +3,8 @@ code.rocketnine.space/tslocum/cbind v0.1.5/go.mod h1:LtfqJTzM7qhg88nAvNhx+VnTjZ0
 github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
 github.com/gdamore/tcell/v2 v2.2.0/go.mod h1:cTTuF84Dlj/RqmaCIV5p4w8uG1zWdk0SF6oBpwHp4fU=
-github.com/gdamore/tcell/v2 v2.4.1-0.20210828201608-73703f7ed490 h1:GtCvI6MZUKinE4yNoN9AanNi0aavmFHp+CyzXLUptVw=
-github.com/gdamore/tcell/v2 v2.4.1-0.20210828201608-73703f7ed490/go.mod h1:Az6Jt+M5idSED2YPGtwnfJV0kXohgdCBPmHGSYc1r04=
+github.com/gdamore/tcell/v2 v2.4.1-0.20211027054709-8fc0c2be8f7d h1:4xJ3ZUnK8TJg4O/zuC7rVvEWPpz2p+3mPMr3eLn7BQg=
+github.com/gdamore/tcell/v2 v2.4.1-0.20211027054709-8fc0c2be8f7d/go.mod h1:ZPwXnysybtQqdqKcWMWXux9aGdtMHe+kr+cwEZEe+A4=
 github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
@@ -18,15 +18,14 @@ github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJ
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210309040221-94ec62e08169/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210831042530-f4d43177bf5e h1:XMgFehsDnnLGtjvjOfqWSUzt0alpTR1RSEuznObga2c=
-golang.org/x/sys v0.0.0-20210831042530-f4d43177bf5e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211112193437-faf0a1b62c6b h1:uo+9AuR+gDt/gdj+1BaLhdOHsaGI6YU6585IiDcLrFE=
+golang.org/x/sys v0.0.0-20211112193437-faf0a1b62c6b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b h1:9zKuko04nR4gjZ4+DNjHqRlAJqbJETHwiNKDqTfOjfE=
-golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
diff --git a/tabbedpanels.go b/tabbedpanels.go
index 1b0b604..837a6c8 100644
--- a/tabbedpanels.go
+++ b/tabbedpanels.go
@@ -69,6 +69,12 @@ func NewTabbedPanels() *TabbedPanels {
 	return t
 }
 
+// SetChangedFunc sets a handler which is called whenever a tab is added,
+// selected, reordered or removed.
+func (t *TabbedPanels) SetChangedFunc(handler func()) {
+	t.panels.SetChangedFunc(handler)
+}
+
 // AddTab adds a new tab. Tab names should consist only of letters, numbers
 // and spaces.
 func (t *TabbedPanels) AddTab(name, label string, item Primitive) {