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Bug 365821 - View menu "triangle" missing from view toolbar.
Summary: View menu "triangle" missing from view toolbar.
Status: CLOSED DUPLICATE of bug 319621
Alias: None
Product: Platform
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 4.2   Edit
Hardware: PC Linux
: P3 major (vote)
Target Milestone: ---   Edit
Assignee: Platform-UI-Inbox CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-12-06 19:09 EST by Pawel Piech CLA
Modified: 2012-01-10 08:45 EST (History)
3 users (show)

See Also:

Attachments
Screenshot of problem. (150.35 KB, image/png)
2011-12-06 19:09 EST, Pawel Piech CLA 		no flags Details
Log file. (199.83 KB, text/plain)
2011-12-06 19:10 EST, Pawel Piech CLA 		no flags Details
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Description Pawel Piech CLA 2011-12-06 19:09:04 EST 
Created attachment 208034 [details]
Screenshot of problem.

Version: 4.2.0
Build id: I20111206-1015

I got into a state where I can't open the view menu in my Registers, Variables, and some other debug views.  The little view menu triangle control is completely gone.  When I switch between views in the same view stack I see the control flashes very briefly then disappears.  All views in the same stack have this problem, other views in the perspective don't.

I installed latest CDT in this installation and I suspect that it triggers this problem.  CDT contributes sub-menus to the view menu using the prg.eclipse.ui.menus extension point.  

Attaching screenshot and my log with errors.
Comment 1 Pawel Piech CLA 2011-12-06 19:10:06 EST 
Created attachment 208035 [details]
Log file.
Comment 2 Remy Suen CLA 2011-12-06 20:55:27 EST 
This may have been caused by something like bug 349423.

(In reply to comment #1)
> Created attachment 208035 [details]
> Log file.

Don't have the code open but I don't think the stack here is relevant.
Comment 3 Remy Suen CLA 2011-12-07 08:46:09 EST 
Do you remember how long it took for you to get into this state, Pawel? Just installing CDT doesn't seem to cause the problem.
Comment 4 Pawel Piech CLA 2011-12-07 13:22:03 EST 
Starting a debug session will do the trick.  

1) Create a hello world project.
2) Debug it with GDB.

I can help debug this, but I first need to take care of a critical issue for m4 in debug.
Comment 5 Remy Suen CLA 2011-12-07 13:26:47 EST 
(In reply to comment #4)
> Starting a debug session will do the trick.  
> 
> 1) Create a hello world project.
> 2) Debug it with GDB.

I have reverted the changes for bug 319621, the most likely cause of this bug, so I think this problem should be gone now.

> I can help debug this, but I first need to take care of a critical issue for m4
> in debug.

No problem, Pawel.
Comment 6 Remy Suen CLA 2012-01-03 15:08:49 EST 
The 'Layout' submenu should probably always be visible. Perhaps the visibility calculations are somehow leaking to the primary view menu, akin to what's going on with bug 349423.
Comment 7 Remy Suen CLA 2012-01-05 11:05:00 EST 
I tried debugging a simple C++ application a couple of times but could not induce this problem. Do you have any ideas what I could be doing wrong, Pawel?
Comment 8 Remy Suen CLA 2012-01-05 16:43:41 EST 
Started seeing this now, need to poke around.
Comment 9 Remy Suen CLA 2012-01-06 08:32:02 EST 
Actually, it seems like the view's menu is there but just not on the screen. Resizing the view will cause it to be rendered. There must be a layout problem here.
Comment 10 Remy Suen CLA 2012-01-10 08:45:13 EST 
(In reply to comment #9)
> Actually, it seems like the view's menu is there but just not on the screen.
> Resizing the view will cause it to be rendered. There must be a layout problem
> here.

Correcting the layout code of the StackRenderer seems to resolve this issue.

*** This bug has been marked as a duplicate of bug 319621 ***