37091 - Implement dialog to ask user which version to use when there's conflicting new content.

Status: VERIFIED DUPLICATE of bug 37089

(Core :: DOM: Editor, defect, P3)

Description

[Charles Manske]

The user can edit a page in both Composer and an external editor at the same 
time. They can save changes to the file with an external editor.
When edit a file in Composer, we need to store the file timestamp and when
we receive focus in a Composer window, we need to check the file timestamp 
against the start time. This will allow detecting changes made by the external
editor. If the user has not made any changes in the Composer version while 
editing in the external editor, all we need to do is put up a "Yes" "No" 
message asking if they want to load the new file version.
If they made changes in the Composer version *and* in the external version and
then saved the external version, there is a conflict and the dialog needs to
be very explicit about telling user to choose one or the other version (the 
one in Composer memory or the version on disk.) We do exactly this in 4.7, so
please review the messages there to evaluate if the strings are ok to use
in mozilla.

Comment 1

[Charles Manske]

I somehow ended up with 2 bugs on this!

*** This bug has been marked as a duplicate of 37089 ***

Comment 2

[sujay]

verified in 4/25 build.