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Bug 257176 - Debugging view keeps scrolling to the top
Summary: Debugging view keeps scrolling to the top
Status: NEW
Alias: None
Product: debugger
Classification: Unclassified
Component: Java (show other bugs)
Version: 8.1
Hardware: PC Mac OS X
: P3 normal with 1 vote (vote)
Assignee: Martin Entlicher
Depends on:
Reported: 2015-12-16 13:31 UTC by denbo
Modified: 2015-12-18 12:23 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter:

random scrolling in debug view (5.85 MB, video/quicktime)
2015-12-18 12:23 UTC, denbo

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Description denbo 2015-12-16 13:31:15 UTC
Within a Java debugging session, when I scroll down in the Debbugging view, it occasionally scrolls back to the top automatically.

There should not be any automatic scrolling; when I scroll down it should stay there.

This was already the case in 8.0.
Comment 1 Martin Entlicher 2015-12-17 17:15:33 UTC
Did you do some stepping or were some breakpoints hit just before it scrolled back?
We did some improvements in the scrolling in 8.1, and I'm not able to reproduce any random automatic scrolling currently. Only after a step, or breakpoint hit (unless suspended already in another thread) the view scrolls to the current stack frame. This is a desired behavior IMHO.

Can you please describe in what circumstances the view scrolls automatically for you?
Comment 2 denbo 2015-12-18 11:41:06 UTC
Actually it sometimes scrolls all the way to the top OR the bottom. 

I'm on a breakpoint and I'm trying to scroll down further to the root of the call stack but then it just starts scrolling. Or I don't scroll but just move the mouse and it starts scrolling. 
Looking at it more closely, the problem only seems to appear when the mouse cursor is over a stack frame TEXT, like it may be related to the tooltips you get when hovering over a stack frame text.

I will try to create a lil video showing the behavior.
Comment 3 denbo 2015-12-18 12:23:44 UTC
Created attachment 157837 [details]
random scrolling in debug view