Starting window instead of a new untitled document?
Starting window instead of a new untitled document?
- Subject: Starting window instead of a new untitled document?
- From: James Bucanek <email@hidden>
- Date: Mon, 31 Jul 2006 16:02:15 -0700
Greetings,
I have a document-based Cocoa applcation that doesn't create untitled documents (document windows can only be opened for existing document files -- which are essentially databases -- and can't exist without physical set of files).
So I've overridden newDocument: to create a file and overridden applicationShouldOpenUntitledFile: to return NO so that a new document isn't created when the user starts the application or activates it via its dock icon.
But now I'd like to implement a "getting started" window that prompts the user to create a new file or open an existing one. I want this window to appear ONLY when the application is started without opening an existing document. Searching the archives, the advice has been to create this window in applicationWillFinishLaunching:. But I don't want to see the window every time. I only want it to appear if the application was launched without a document to open.
What's the best way to approach this?
I was thinking about the following:
- unhook newDocument from the user interface (File > New would call a new routine to create documents).
- rewrite newDocument so that it puts up my "getting started" window
- have applicationShouldOpenUntitledFile: return YES, allowing the framework to call newDocument at start up.
- have applicationShouldHandleReopen:hasVisibleWindows: return NO, preventing it from calling newDocument when being reactivated via the dock.
As far as I can tell, the newDocument: message should only be sent only once and only if the application is opened without a document.
Is there a better way?
--
James Bucanek
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