NSSavePanel hangs when allowedFileTypes contain leading dots

Originator:kpa
Number:rdar://30512012 Date Originated:14-Feb-2017 03:48 PM
Status:Open Resolved:
Product:macOS Product Version:10.12.3
Classification: Reproducible:Always
 
Area:
Performance (slow, hung)

Summary:
Showing an NSSavePanel where allowedFileTypes contain leading dots hangs the app when the app is sandboxed. For example the following hangs:

    let savePanel = NSSavePanel()
    savePanel.allowedFileTypes = [".mov"]
    savePanel.beginSheetModal(for: view.window!) { _ in
    }

It logs:

__54-[NSVBSavePanel advanceToRunPhaseIfNeededLayerCentric]_block_invoke : Could not advance an Open/Save panel to run phase due to error: Error Domain=com.apple.ViewBridge Code=16 "(null)" UserInfo={com.apple.ViewBridge.error.hint=advance to run phase, com.apple.ViewBridge.error.description=NSViewBridgeServiceInvalidError}

Steps to Reproduce:
1. Initialize a NSSavePanel
2. Set allowedFileTypes = [".mov"]
3. Show the save panel

Expected Results:
The same behavior as if allowedFileTypes ["mov"] was specified. Alternatively, in Swift, a type safe way to provide allowedFileTypes.

Actual Results:
The app hangs

Version:
10.12.3

Notes:


Configuration:
This happens for sandboxed apps that have the com.apple.security.files.user-selected.read-write entitlement

Attachments:
'NSSavePanel.zip' was successfully uploaded.

Comments

kpa

Crash report and sysdiagnose attached.

By kpa at May 5, 2017, 12:54 p.m. (reply...)

Apple Developer Relations

Engineering has provided the following information regarding this issue:

Thank for the quick response time!

Either there’s something in the system configuration or perhaps drive contents that is different between his machine and our setups that we haven’t accounted for yet. Since you’re seeing the openAndSavePanelService crash, can we get you please provide crash logs?

Having the crash traces for openAndSavePanelService could be quite helpful (and for your own app, if there is one).

macOS sysdiagnose Instructions: https://developer.apple.com/services-account/download?path=/OS_X/OS_X_Logs/sysdiagnose_Logging_Instructions.pdf

For a complete list of logging instructions visit: https://developer.apple.com/bug-reporting/profiles-and-logs/

By kpa at May 5, 2017, 12:54 p.m. (reply...)

kpa

I'm still seeing this issue. Any information in particular you're looking for?

I didn't notice this earlier but when it crashes this is logged to system.log:

Apr 27 08:24:38 Neo com.apple.xpc.launchd1: Service exited due to signal: Segmentation fault: 11 sent by exc handler[0]

By kpa at April 27, 2017, 6:28 a.m. (reply...)

Apple Developer Relations

We cannot reproduce.

I can’t reproduce the bug in the attached sample app or my own, in 10.12.2, 10.12.3.

Please update your bug report to let us know if this is still an issue for you, and provide any additional information.

By kpa at April 27, 2017, 6:22 a.m. (reply...)

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