-insertNewline: and -insertLineBreak:, using the shift key modifier
-insertNewline: and -insertLineBreak:, using the shift key modifier
- Subject: -insertNewline: and -insertLineBreak:, using the shift key modifier
- From: Keith Blount <email@hidden>
- Date: Wed, 11 Jun 2008 13:10:21 -0700 (PDT)
Hi,
In most text-based apps, you insert a newline by hitting return and a line break by hitting shift-return. This isn't the default behaviour of NSTextView, but both -insertNewline: and -insertLineBreak: are available as actions. However, using interface builder it is impossible to add shift-return as a keyboard shortcut (it just gets entered as return without the shift modifier), so the obvious way of implementing this behaviour - having a menu item with -insertLineBreak: as its action and applying shift-return as its keyboard shortcut - doesn't work. I tried to get around this by using NSMenuItem's -setKeyEquivalentModifierMask in my menu delegate (the app delegate). This changed the shortcut in the menu to shift-return as desired, but using the shortcut had no effect - a regular newline was entered.
This leads me to believe that shift-return is blocked somehow as a shortcut by the text system, though I'm not sure how or why.
The only thing I can think of is to override -insertNewline: in my custom text view to call -insertLineBreak: if the shift key is held down. This works, as follows:
- (void)insertNewline:(id)sender
{
if([[[selfwindow] currentEvent] modifierFlags] & NSShiftKeyMask)
[selfinsertLineBreak:sender];
else
[super insertNewline:sender];
}
My question is, is there anything wrong with doing it this way? Or is there a better way of getting the expected line break keyboard shortcut that I am missing, given that regular routes don't work?
Thanks in advance and all the best,
Keith
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