On Aug 28, 2009, at 2:54 AM, Ken Thomases wrote:
On Aug 27, 2009, at 2:49 PM, Dylan McNamee wrote:
Which hook should I use to detect that my document-based app has
been launched without a document having been dropped on it (or
double-clicked upon)?
Right now my app just launches and shows its menu.
What I'd like to do is catch this case, and at least pop up an
"Open" dialog.
A document-based app will automatically open a new untitled document
under those circumstances, by default. To make it not do that, you
have to return NO from the Application delegate's -
applicationShouldOpenUntitledFile: method. Naturally, if you want
to not open a new untitled document but also do something else, you
should have that method do the "something else" and also return NO.
You should also pay attention to the -
applicationShouldHandleReopen:hasVisibleWindows: delegate method if
you want to do something different on first launch vs. the user
"relaunching" your app (by double-clicking it in the Finder or click
on its Dock icon) when it's already running.
This advice pointed me in the right direction. A detail I forgot to
share, which is what threw me off the correct track is that my
application (Cheap Impostor) is a "read-only" document-based
application, so the notion of "OpenUntitledFile" didn't make sense to
me -- there's no notion of opening a blank document for creation.
However, this hook (and its associated event
applicationOpenUntitledFile:) is exactly the place where I wanted to
launch the Open Dialog, and it works great.
Thanks very much!
dylan
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