802328 - When launching open file dialog: Mozilla has caught an Obj-C exception [NSInternalInconsistencyException: Class check]

Status: RESOLVED WORKSFORME

(Core :: Widget: Cocoa, defect)

Description

[Eric Promislow]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0) Gecko/20100101 Firefox/10.0
Build ID: 20120129021758

Steps to reproduce:

Called nsFilePicker::GetLocalFiles


Actual results:

I get an exception reported.  The open-file dialog does appear, but this text appears in the console at the same time:

2012-10-16 13:12:37.692 komodo-bin[6567:1203] *** Assertion failure in -[NSOpenPanel _navView], /SourceCache/AppKit/AppKit-1138.51/Nav.subproj/NSSavePanel.m:489
2012-10-16 13:12:37.692 komodo-bin[6567:1203] Mozilla has caught an Obj-C exception [NSInternalInconsistencyException: Class check]


Expected results:

No exceptions.

If Mozilla 17+ is targeting OSX 10.6+, why not directly call 
[panel setShowsHiddenFiles:...]?

Comment 1

[Steven Michaud [:smichaud] (Retired)]

Please give us a testcase.

Either post a URL that demonstrates the problem (together with steps-to-reproduce), or write a simple testcase and attach it to the bug.

Comment 2

[Eric Promislow]

Attachment: Code that triggers the error message.

See https://bugzilla.mozilla.org/show_bug.cgi?id=802776#c2 
for more comments on this attachment.

Comment 3

[Steven Michaud [:smichaud] (Retired)]

Attachment: Extension containing code from comment #2

Installing this extension adds an Opentmp button to the Tools menu, which (when you click it) exercises your code from comment #2.  (Note that it opens the /tmp directory instead of the directory your code originally specified.)

The code won't work in a simple web page, because it requires privileged access.

I'm not able to reproduce your bug with this extension, in FF 16.0.2, FF 10.0.2 or today's mozilla-central nightly.

Comment 4

[Steven Michaud [:smichaud] (Retired)]

Somehow I didn't notice that you'd already written an extension for bug 802776.  But I can't reproduce either bug with that extension, either.

If/when you do find a way to reproduce either this bug or bug 802776, please let us know.  In the meantime I'll close both bugs WORKSFORME.

I'm particularly interested in finding out how to reproduce this bug.  It may be related to bug 695524, a (so-far) non-reproducible Apple bug that's been plaguing us since OS X Lion was first released.

Comment 5

[Eric Promislow]

I'm fine leaving it at WORKSFORME. If I find time I'll build a vanilla Firefox with Moz 17 on Mountain Lion and see if I can reproduce the problem.