David T. Lewis uploaded a new version of ST80 to project The Trunk:
http://source.squeak.org/trunk/ST80-dtl.101.mcz

==================== Summary ====================

Name: ST80-dtl.101
Author: dtl
Time: 10 February 2010, 1:06:02.731 pm
UUID: 6617b421-cdc3-43ce-8686-d68c5eed0121
Ancestors: ST80-dtl.100

Fix SelectorBrowser>>classListIndex: to use #changed: #update: to notify MVC views that control should be terminated prior to opening a new browser. Original implemention polled dependents with #isKIndOf: and had explicit dependency on MVC PluggableListView.

=============== Diff against ST80-dtl.100 ===============

Item was changed:
  ----- Method: PluggableListView>>update: (in category 'updating') -----
  update: aSymbol 
  	"Refer to the comment in View|update:."
  	aSymbol == getListSelector ifTrue:
  		[self list: self getList.
  		self displayView.
  		self displaySelectionBox.
  		^self].
  	aSymbol == getSelectionSelector ifTrue:
  		[^ self moveSelectionBox: self getCurrentSelectionIndex].
+ 	aSymbol == #startNewBrowser ifTrue:
+ 		[(self setSelectionSelectorIs: #classListIndex:) ifTrue: [
+ 			"A SelectorBrowser is about to open a new Browser on a class"
+ 			self controller controlTerminate]]
  !