Re: Prompting user (NSAlert) during document reading
Re: Prompting user (NSAlert) during document reading
- Subject: Re: Prompting user (NSAlert) during document reading
- From: edward taffel <email@hidden>
- Date: Wed, 27 Aug 2014 12:37:01 -0400
On Aug 27, 2014, at 12:32 PM, Kyle Sluder <email@hidden> wrote:
worse & worse: very clever, kyle—thanks for pointing this out!
>> i had this problem too: you can show the alert on the main thread via e.g. performSelectorOnMainThread. (as was kindly pointed out to me by, if i remember correctly, graham cox).
>
> I would not advise this. The main thread may itself be blocked due to waiting on your document via -performSychronousFileAccesdUsingBlock:.
>
> Matthew, could you perhaps perform automatic conversion, mark the document as untitled, and display a notice about automatic conversion once the document has been asked to -showWindows? This is the strategy I’ve suggested implementing in our own apps in the future.
>
> Something like:
>
> - initWithContentsOfURL:… {
> self = [super initWithContentsOfURL:…];
> if (_autoConverted)
> [self setDraft:YES];
> return self;
> }
>
> - showWindows {
> [super showWindows];
> if (_autoConverted) {
> NSAlert *autoConversionAlert = …;
> NSWindow *docWindow = self.windowControllers[0].window;
> [alert beginSheetModalForWindow:window completionHandler:…];
> }
>
> --Kyle Sluder
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