Problem with application hiding and revealing
Problem with application hiding and revealing
- Subject: Problem with application hiding and revealing
- From: Christopher Drum <email@hidden>
- Date: Thu, 6 Oct 2005 17:47:10 -0700
Just finished up an app for work that grabs a bunch of InDesign files
off our server then batch prints them to the printer(s) of the user's
choice. It is a combination of MySQL queries sent through
SMySQL.Framework, with document copying/management and interface
elements managed via Cocoa, then of course AppleScript for talking to
InDesign and updating the Cocoa elements via "call method".
When processing files, the app is very slow to respond to "Hide
Other" application command sent by other applications. Revealing the
app is also very sluggish. On my PowerBook G4 1.25 GHz, my app does
eventually respond to the commands to hide and reveal itself.
However, most troubling and puzzling is that when the app is run on
another machine, a dual 1.25 GHz G4 mirror-door system, the app will
not reveal itself again after being hidden. Or rather, here's a
sequence of events that seems to really bother the application:
1. Launch the app
2. Choose some files to print in an NSTableView run by an
NSArrayController
3. Click "Print"
4. Go into another application
5. "Hide Others"
6. Click on the icon for my application in the dock to reveal it
7. Wait and wait and wait, and cross your fingers the
application will reveal itself again
It is step 7 that differs for my machine versus another machine. Mine
will eventually pop the application to the foreground again, once it
finishes its work with the current InDesign doc. On the other
machine, revealing the app results in a white rectangle drawn where
the app window should be. No menus change from the previous app
(i.e., the menubar still reflects the previous application's menubar)
and no amount of cajoling makes the app behave. The app never reveals
itself, however I can still quit it properly from its dock icon menu
and it relaunches without incident. It acts as though nothing went
wrong at all... I don't have to force quit the app or anything like
that.
To me, it feels like the AppleScript part of the app is causing it to
hang and misbehave. That script doesn't do much besides update the
tableview via a "call method" and churn through a bunch of documents
passed off to InDesign. The app is really nothing fancy, when you get
right down to it. My AppController only has ten methods in it, none
of which are delegate methods or anything of the sort. Just very
straightforward workhouse functionality (if that makes any sense).
What kinds of things should I be looking at to
a) improve the application's snappiness when asked to hide and
reveal itself
b) troubleshoot what would prevent the application from
revealing itself at all?
Regards,
Christopher Drum
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