I am struck in what should be a simple task so I would appreciate any
help.
I have a menu item which I want to show a default on or off state, so
I set up a binding in IB to a BOOL "monitor" property in my
controller. This works ok and both the check mark in the menu item and
the property are kept in sync whatever I change.
However, the menu item I am talking about is intended to trigger an
action that can fail, so I want to keep its ultimate state unchanged
in some cases. For this purpose I added an action method that checks
the original state of the menuState property and resets it accordingly
depending on the success status of the performed accion.
The code looks as follows
- (BOOL)menuState { return menuState ; }
- (void)setMenuState:(BOOL)value
{
NSLog(@"setMenuState (%d) called",value);
menuState = value ;
}
- (IBAction) myAction:(id)sender
{
do something...
if ( fail ) [self setMenuState:NO] ;
}
I observed that when the user clicks on the menu item the action
method is called before any change is made to menuState, but then
setMenuState may be called twice: one from myAction (if it fails) and
one from the frameworks. The problem here is that after the second
call both menuState and the menuItem no longer shows the intended state.
So I wonder what should be the right approach to accomplish this?. I
can not simply assume that setMenuState will be always called after
myAction because I also intent to set that same action to a toolbar
button with the same function of the menu item.
Thank you for any help.
Joan Lluch
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