Well I think I found it: now the Open Panel disappears when opening large files in my document-based app. Now the process of the data file is done in the subclassed NSWindowController windowDidLoad method.
I've found something here on the Cocoa mailing list from 2002!: http://www.cocoabuilder.com/archive/cocoa/53353-grief-with-nsdocument-windowcontrollerdidloadnib.html and this sentence was the most important: "If you do subclass NSWindowController you should instead override NSWindowController's windowWillLoad and windowDidLoad methods." Also here: https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSWindowController_Class/Reference/Reference.html The fix to close the Open Panel immediately when the user clicked "Open" to open small and large files: 1. Read the content of the data file into NSString with NSDocument readFromURL:ofType:error 2. NSDocument's makeWindowControllers creates a new windowController object and I'm passing the data file 3. In the subclassed NSWindowController windowDidLoad / windowWillLoad method the data file is processed before displayed as a graph. This works now as expected, no more Open Panel staying open. Maybe I should even move the data processing to windowWillLoad, (tested it and this works too). My mistake was that I processed the data file inside readFromURL:ofType:error and then makeWindowControllers passed the processed data file to the subclassed NSWindowController and everything was setup via awakeFromNib. I didn't use NSWindowController's windowDidLoad or windowWillLoad method. Hope this helps someone somewhere in the future ;-) Anyway thanks again to everybody helping out with this. Gilles On 30 janv. 2013, at 12:41, Mike Abdullah <cocoa...@mikeabdullah.net> wrote: > > On 29 Jan 2013, at 16:18, Gilles Celli <gilles.ce...@ecgs.lu> wrote: > >> I looked a little bit today here with my application, and the term >> unresponsive for the Open Panel is not appropriate: >> it should be "stays open" when reading /processing the big data file and >> then the panel closes. >> >> The main processing time is when converting date/time to >> NSTimeIntervalSince1970, and extracting data values..so a big ASCII data >> file can have > 500000 lines >> >> Simply put, the Open Panel should be closed, but it stays open until the >> data file has been processed and the data displayed as a graph. >> >> There should be a way to close NSDocument openPanel but didn't find anything >> about it… >> >> Any help is as always greatly appreciated :-) > > So I ran a quick little test here. Our app already uses asynchronous document > opening. I simply whacked in a sleep(5) call to make sure that opening > documents takes a long time. With that in place: > > 1. Bring up the Open Panel (File > Open, no custom code here) > 2. Select a document > 3. Click Open > 4. The panel disappears shortly after > 5. After a delay, the document appears > > Thus I conclude that if you are seeing the open panel hang around, you're > likely doing something wrong to block the main thread. > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
