From c130191cfa0f21c3ab4ac1092745bc5c06a42e7a Mon Sep 17 00:00:00 2001
From: fvogel <fvogelnew1@free.fr>
Date: Sun, 22 May 2016 19:56:27 +0000
Subject: Fixed [109865fa01] - ttk::menubutton has an unprotected winfo

---
 library/ttk/menubutton.tcl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/ttk/menubutton.tcl b/library/ttk/menubutton.tcl
index 093bb02..2be064c 100644
--- a/library/ttk/menubutton.tcl
+++ b/library/ttk/menubutton.tcl
@@ -57,7 +57,7 @@ if {[tk windowingsystem] eq "x11"} {
     bind TMenubutton <ButtonPress-1>  \
 	{ %W state pressed ; ttk::menubutton::Popdown %W }
     bind TMenubutton <ButtonRelease-1>  \
-	{ %W state !pressed }
+	{ if {[winfo exists %W]} { %W state !pressed } }
 }
 
 # PostPosition --
-- 
cgit v0.12


From a129a2159a084a7ead331d54273f5cf2a3a7a961 Mon Sep 17 00:00:00 2001
From: fvogel <fvogelnew1@free.fr>
Date: Sun, 22 May 2016 20:55:05 +0000
Subject: Added test checkbutton-1.7 to guard against regressions regarding
 [109865fa01]

---
 tests/ttk/checkbutton.test | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/ttk/checkbutton.test b/tests/ttk/checkbutton.test
index e18ff32..6b79287 100644
--- a/tests/ttk/checkbutton.test
+++ b/tests/ttk/checkbutton.test
@@ -45,4 +45,20 @@ test checkbutton-1.6 "Checkbutton default variable" -body {
     lappend result [info exists .cb] [set .cb] [.cb state]
 } -result [list .cb 0 alternate   1 on selected  1 off {}]
 
+# Bug [109865fa01]
+test checkbutton-1.7 "Button destroyed by click" -body {
+    proc destroy_button {} {
+        destroy .top
+    }
+    toplevel .top
+    ttk::menubutton .top.mb -text Button -style TLabel
+    bind .top.mb <ButtonRelease-1> destroy_button
+    pack .top.mb
+    focus -force .top.mb
+    update
+    event generate .top.mb <1>
+    event generate .top.mb <ButtonRelease-1>
+    update  ; # shall not trigger error  invalid command name ".top.b"
+} -result {}
+
 tcltest::cleanupTests
-- 
cgit v0.12