The Inbox: Morphic-LM.1462.mcz

>
> A new version of Morphic was added to project The Inbox:
> http://source.squeak.org/inbox/Morphic-LM.1462.mcz
>
> ==================== Summary ====================
>
> Name: Morphic-LM.1462
> Author: LM
> Time: 6 September 2018, 12:14:18.079447 pm
> UUID: e1c1e0cf-8e19-7e49-99f6-bc98b78ed007
> Ancestors: Morphic-cmm.1461
>
> Fixes a NonBooleanReceiver error that appeared when pressing backspace on a read-only text field.
>
> =============== Diff against Morphic-cmm.1461 ===============
>
> Item was changed:
>   ----- Method: TextEditor>>backTo: (in category 'typing support') -----
>   backTo: startIndex
>         "During typing, backspace to startIndex. If there already is a selection, just delete that selection. Otherwise, check if we did something else than backward-deletion and start a new command if so."
>
> +       morph readOnly ifTrue: [^ false].
> -       morph readOnly ifTrue: [^ self].
>
>         self hasSelection ifTrue: [
>                 "Add checkpoint in undo history."
>                 self replaceSelectionWith: self nullText.
>                 ^ true].
>
>         startIndex > self text size ifTrue: [^ false].
>
>         self selectInvisiblyFrom: startIndex to: self stopIndex-1.
>
>         self isTypingIn ifTrue: [
>                 self history current type = #backward
>                         ifFalse: [self closeTypeIn]
>                         ifTrue: [
>                                 "Accumulate all deleted characters in current undo command."
>                                 self history current contentsBefore replaceFrom: 1 to: 0 with: self selection.
>                                 self history current intervalBefore in: [:i |
>                                         self history current intervalBefore: (startIndex to: i last)]]].
>
>         self openTypeInFor: #backward.
>         self zapSelectionWith: self nullText.
>
>         ^ false!
>
>