Re: canAsynchronouslyWriteToURL:ofType:forSaveOperation: Prevent Quit?
Re: canAsynchronouslyWriteToURL:ofType:forSaveOperation: Prevent Quit?
- Subject: Re: canAsynchronouslyWriteToURL:ofType:forSaveOperation: Prevent Quit?
- From: Kyle Sluder <email@hidden>
- Date: Sun, 20 Apr 2014 13:34:17 -0700
Do you override any other NSDocument saving methods? I believe NSDocument’s internal use of -performAsynchronousFileAccess… should cause it to delay NSApplication termination.
--Kyle Sluder
On Apr 20, 2014, at 1:01 PM, Trygve Inda <email@hidden> wrote:
>>
>>> On 20 Apr 2014, at 19:58, Trygve Inda <email@hidden> wrote:
>>>
>>> I return YES from
>>>
>>> canAsynchronouslyWriteToURL:ofType:forSaveOperation:
>>>
>>> Which works fine, but the user is able to quit the app while the save is in
>>> progress. Is there way way to know when the save is complete so that I can
>>> prevent quit before the save ends?
>>
>> If you play by NSDocument’s rules, the won’t actually terminate until saving
>> is finished. How have you determined that this is not the case for your app?
>> Is your save process doing anything weird?
>
> If I start a save and quit immediately, the file is not written. In my
> Document class I override:
>
>
> -(NSFileWrapper *)fileWrapperOfType:(NSString *)typeName error:(NSError
> **)outError
> {
> if ([self documentFileWrapper] == nil)
> [self setDocumentFileWrapper:[self createPackageDirectoryStructure]];
>
> ...
>
> [self unblockUserInteraction];
> return documentFileWrapper;
> }
>
>
> -(BOOL)canAsynchronouslyWriteToURL:(NSURL *)url ofType:(NSString *)typeName
> forSaveOperation:(NSSaveOperationType)saveOperation
> {
> return YES;
> }
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