Bug 2854

Description James Moody 2001-10-10 22:44:45 EDT

See related PRs:
		1GJW3AI: ITPVCM:WIN2000 - Compare with Stream Contents does not 
prompt for save changes.
		1GFMRMH: ITPVCM:ALL - Project compare: edited files aren't 
marked

	We are having problems implementing prompt-for-save-on-close 
functionality in our compare editor.

	Doing this properly seems impossible given the current compare 
framework. If we get rid of our implementation
	of VCMCompareEditorInput.isSaveNeeded(), then the when we close the 
editor we get the following behaviour:

	1. Editor says changes exist, do you want to save? (y/n/cancel)
	2. User says "yes"
	3. CompareEditor.doSave() first sends setInput(null) to each pane, then 
sends save() to the CompareEditorInput.
	BUT
	setInput(null) sent to each pane may cause additional prompting 
(changes exist, do you want to save? (y/n/cancel))
	because, in ContentMergeViewer.inputChanged(), if fConfirmSave is true, 
the pane prompts for saving changes.

	We have no control over fConfirmSave, as it is a global setting. 
(Anyway, even if we did, we wouldn't turn it off
	because it is needed for the case that the user clicks on a different 
item in the tree).

	Why does this not happen in the normal (non-VCM) compare case? Because 
we enable the save actions in
	our editors, and in ContentMergeViewer.inputChanged(), the prompting 
only happens if the save actions are
	enabled.

	This code path needs to be fixed before we can prompt in this way.

NOTES: