Re: [platform-ui-dev] Changes to the Editors preference page

["Daniel Megert" <daniel_megert@xxxxxxxxxx>]

The issue has already been resolved in
a good way. I just wanted to add some additional comments:

- Like others who replied, I agree that
it is confusing when editors just disappear (because they are reused).
- When a lot of editors are dirty or
pinned, it can happen that very recently opened editor are reused, which
is really not what one would want.
- In general, editors should not do
any work while hidden, e.g. the Java editor does not reconcile when hidden.
There might be editors which do not follow that rule. Hence, if someone
sees really bad performance with many open editors, then one should trace
it and file bug reports.

Dani



From:      
 Stefan Xenos <sxenos@xxxxxxxxxx>
To:      
 "Eclipse Platform
UI component developers list." <platform-ui-dev@xxxxxxxxxxx>
Date:      
 14.03.2016 00:44
Subject:    
   [platform-ui-dev]
Changes to the Editors preference page
Sent by:    
   platform-ui-dev-bounces@xxxxxxxxxxx

---

The current defaults in the editors preference page result
in an unbounded number of editors being open, which results in poor performance
and memory usage after the user has viewed a large number of files. There
are many operations in Eclipse which slow down linearly with respect to
the number of open editors. This is a poor user experience.

I would like to propose that we change the defaults as
follows:

- Close editors automatically will be enabled
- Number of editors before closing will be set to a higher
constant (20).
- The behavior when all editors are dirty or pinned will
be "Open new editor"

Raising the constant will make the change in default behavior
less noticable to people who were familiar with the old behavior, and will
also save the cursor position and editor state for a larger number of recent
editors.

Further, I propose that we remove the option to "Prompt
to save and reuse" from the UI since it doesn't seem to do anything
useful. It's behavior is very similar to "Open new editor" except
that it also interrupts the user with modal dialogs periodically. It's
unlikely that many users select this intentionally if they understand what
it does, but leaving the option in the UI just increases the probability
of users selecting it by accident. We can keep the preference around for
RCP apps which may be relying upon it, but I don't think we should expose
it in the UI.

Thoughts?

  - Stefan_______________________________________________
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