Hi Matt,
thank you for your help.
[CATransaction begin];
[CATransaction setValue:(id)kCFBooleanTrue
forKey:kCATransactionDisableActions];
// Your code here
[CATransaction commit];
I had tried to use this, however I was not sure where to put it. My
problem is with the "Your code here". In the whole resize procedure,
no code is involved. The views are resized automatically when the user
resizes the window in which they reside. What I tried now was to
overwrite the setFrame: method of the view that contains the
background layer. For "Your code here", I call [super setFrame:frame].
Unfortunately, this does not prevent the WebView from fading in and out.
See also:
http://developer.apple.com/documentation/Cocoa/Conceptual/CoreAnimation_guide/Articles/Transactions.html
http://www.cocoabuilder.com/archive/message/cocoa/2008/6/25/211097
This thread talks exactly about my problem; thank you for pointing me
at it. Nevertheless, there is no real solution provided, or is it?
They suggest to 'simply' overwrite +(id)defaultAnimationForKey:
(NSString*)key and to return nil. But in which class do I have to
overwrite it? I have overwritten it in (a) my subclass of NSView,
which is supposed to do the custom drawing, (b) in the NSView that
contains this view and the WebView and (c) finally I even subclassed
the WebView to overwrite it there -- but the fading effects are still
there...
What I was hoping to find is a possibility to switch the effects off
completely. Not only for specific classes, where I have no influence
on subviews, not only for one specific transaction, where I do not
exactly know when it is triggered, but entirely, completely, off. For
all objects and forever :-)
Wolf
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