A new version of ToolBuilder-Morphic was added to project The Inbox:
http://source.squeak.org/inbox/ToolBuilder-Morphic-jr.202.mcz==================== Summary ====================
Name: ToolBuilder-Morphic-jr.202
Author: jr
Time: 10 December 2017, 5:21:48.408893 pm
UUID: 4731ca9c-b924-514d-8f13-19a9913addb5
Ancestors: ToolBuilder-Morphic-tpr.201
fix choice from an empty list
Before the preceding changes in 2016, the MorphicUIManager would answer 0 when the list to choose from was empty.
After the changes, it would signal an error here:
dialog selectedButtonIndex: 1.
So guard against an empty list and answer 0 immediately.
The case can be triggered in a fresh trunk image when you try to add a repository to an existing package without first adding an additional repository via the '+ Repository' button. There will be zero repositories to choose from.
=============== Diff against ToolBuilder-Morphic-tpr.201 ===============
Item was changed:
----- Method: MorphicUIManager>>chooseFrom:lines:title: (in category 'ui requests') -----
chooseFrom: aList lines: linesArray title: aString
"Choose an item from the given list. Answer the index of the selected item."
+ aList ifEmpty: [^ 0].
aList size <= 7 ifTrue: [
| dialog |
dialog := DialogWindow new
title: 'Please Choose';
message: aString;
filterEnabled: true;
autoCancel: true;
yourself.
aList doWithIndex: [:ea :index |
dialog createButton: ea value: index].
dialog selectedButtonIndex: 1.
^ dialog getUserResponseAtHand ifNil: [0]].
^ ListChooser chooseFrom: aList title: aString!
Locked
