How we use Shift+Enter for line break in NSTextField- Cocoa
I want to line bre开发者_运维问答ak using shift+enter in TextField(Control+Enter is working) I don't want to use TextView because using this Enter Key Action is not performing..
The standard way to do this is option-return, and it works for free.
With this code when user presses Enter key you can sent an comment for example and when user presses Shift+Enter key the default behaviour of NSTextView is executed which it is to insert an line break. In my opinion this is a better solution than to use an NSTextField in this case.
- (BOOL)textView:(NSTextView *)aTextView doCommandBySelector:(SEL)aSelector {
if (aSelector == @selector(insertNewline:)) {
NSEvent * event = NSApp.currentEvent;
if ((event.modifierFlags & NSShiftKeyMask) != NSShiftKeyMask) {
//Do some when only the enter key is pressed
return YES;
}
}
return NO;
}
Here's how I did it: Within control:textView:doCommandBySelector:
of NSTextFieldDelegate
, capture the insertNewline:
command and check if the current event has the shift modifier flag.
- (BOOL)control:(NSControl *)control textView:(NSTextView *)fieldEditor doCommandBySelector:(SEL)commandSelector {
if (commandSelector == @selector(insertNewline:) &&
[[[NSApplication sharedApplication] currentEvent] modifierFlags]
& NSShiftKeyMask) {
[fieldEditor insertNewlineIgnoringFieldEditor:self];
return YES;
}
return NO;
}
Alternatively, if a text view would be more appropriate for your app than a text field, then that's what you should use.
I wrote one that can send action messages. Here's the header and the implementation. It's under a BSD license.
Thanks Peter it works I add following in code int flags = [event modifierFlags]; BOOL shift = ( flags & NSShiftKeyMask ) ? YES : NO;
if (([event keyCode] == enterKey1 || [event keyCode] == enterKey2) && !shift) {
window = [self window];
[window makeFirstResponder:[window contentView]];
[NSApp sendAction:action to:target from:self];
}
but now able to set focus on texView after action on textField I was using [textField selecttext];
for TextView I tried [theTextView setSelectedRange: NSMakeRange(0,0)]; but not works
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