How to disable user interaction in a custom View

£可爱£侵袭症+ 提交于 2019-11-29 09:22:22

NSView doesn't have either setEnabled: or setIgnoresMouseEvents:

Implement the hitTest: method to return nil.

From here:

//
//  NSView-DisableSubsAdditions.m
//  Can Combine Icons
//
//  Created by David Remahl on Tue Dec 25 2001.
//  Copyright (c) 2001 Infinity-to-the-Power-of-Infinity. All rights reserved.
//

#import "NSView-DisableSubsAdditions.h"

@implementation NSView(DisableSubsAdditions)

- (void)disableSubViews
{
    [self setSubViewsEnabled:NO];
}

- (void)enableSubViews
{
    [self setSubViewsEnabled:YES];
}

- (void)setSubViewsEnabled:(BOOL)enabled
{
    NSView* currentView = NULL;
    NSEnumerator* viewEnumerator = [[self subviews] objectEnumerator];

    while( currentView = [viewEnumerator nextObject] )
    {
        if( [currentView respondsToSelector:@selector(setEnabled:)] )
        {
            [(NSControl*)currentView setEnabled:enabled];
        }
        [currentView setSubViewsEnabled:enabled];

        [currentView display];
    }
}

@end

subclass the NSView and add following method

-(void)mouseDown:(NSEvent *)theEvent
{

}

Here is an example in Swift 4. Place your views into this custom view.

class UserInterectionDisabledView: NSView {
    override func hitTest(_ point: NSPoint) -> NSView? {
        return nil
    }
}
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