macOS NSTextField subclass issues

[Monaj]

Hi all,

I am using below code to subclass NSTextField-

- (void)drawRect:(NSRect)dirtyRect
{
    // black outline
    NSRect blackOutlineFrame = NSMakeRect(0.0, 0.0, [self bounds].size.width, [self bounds].size.height-1.0);

    NSGradient *gradient = nil;
    if ([NSApp isActive]) {
        gradient = [[NSGradient alloc] initWithStartingColor:[NSColor colorWithCalibratedWhite:0.24 alpha:1.0] endingColor:[NSColor colorWithCalibratedWhite:0.374 alpha:1.0]];
    }
    else {
        gradient = [[NSGradient alloc] initWithStartingColor:[NSColor colorWithCalibratedWhite:0.55 alpha:1.0] endingColor:[NSColor colorWithCalibratedWhite:0.558 alpha:1.0]];
    }
    [gradient drawInBezierPath:[NSBezierPath bezierPathWithRoundedRect:blackOutlineFrame xRadius:7.6 yRadius:7.6] angle:90];



    // top inner shadow
    NSRect shadowFrame = NSMakeRect(1, 1, [self bounds].size.width-2.0, 10.0);
    [[NSColor colorWithCalibratedWhite:0.88 alpha:1.0] set];
    [[NSBezierPath bezierPathWithRoundedRect:shadowFrame xRadius:6.9 yRadius:6.9] fill];

    // draw the keyboard focus ring if we're the first responder and the application is active
    if (([[self window] firstResponder] == [self currentEditor]) && [NSApp isActive])
    {   
        [NSGraphicsContext saveGraphicsState];
        NSSetFocusRingStyle(NSFocusRingOnly);
        [[NSBezierPath bezierPathWithRoundedRect:blackOutlineFrame xRadius:8.6 yRadius:8.6] fill]; 
        [NSGraphicsContext restoreGraphicsState];
    }

    // main white area

    NSRect whiteFrame = NSMakeRect(1, 2, [self bounds].size.width-3.0, [self bounds].size.height-7.0);
    [[NSColor whiteColor] set];
    [[NSBezierPath bezierPathWithRoundedRect:whiteFrame xRadius:8.6 yRadius:8.6] fill];

    NSFont *stringFont = [NSFont fontWithName:@"Lucida Grande" size:18.0];

    if ([[self stringValue] length] == 0) {
        NSColor *txtColor = [NSColor grayColor];
        NSDictionary *placeHolderDict = [NSDictionary
                                         dictionaryWithObjectsAndKeys:txtColor, NSForegroundColorAttributeName,stringFont,NSFontAttributeName,
                                         nil];

        placeHolderString = [[NSAttributedString alloc]
                             initWithString:[[self cell] placeholderString] attributes:placeHolderDict];
        [placeHolderString drawAtPoint:NSMakePoint(10.0,0.0)];      
    }
    else {
        NSColor *txtColor = [NSColor blackColor];
        NSDictionary *txtDict = [NSDictionary
                                 dictionaryWithObjectsAndKeys:txtColor, NSForegroundColorAttributeName,stringFont,NSFontAttributeName,
                                 nil];

        placeHolderString = [[NSAttributedString alloc]
                             initWithString:[self stringValue] attributes:txtDict];
        [placeHolderString drawAtPoint:NSMakePoint(6.0,4.0)];       
    }

}

But I am facing two problems:

First Problem: When a text field is selected, it is showing overlapping white edges over round corners as shown in below image:

Second Problem: When cursor is in textField1 and I am pressing tab key, it is not moving to textField2 though in IB I have binded next key view of textField1 as textField2.

Can any one suggest me some solution for above problems?

Thanks