Custom window problem

FieldCreation.m

{
        NSView *emailFieldContainer = [[NSView alloc] initWithFrame:NSMakeRect(80.0/2, 150.0/2, 650.0/2, 60.0/2)];
        self->emailField = [[NSTextField alloc] initWithFrame:NSMakeRect(10.0/2, 10.0/2, 670.0/2, 40.0/2)];
        self->emailField.stringValue = @"[email protected]";
        [self->emailField setFont:boldFont];
        [self->emailField setEditable:YES];
        self->emailField.drawsBackground = NO;
        [self->emailField setBezeled:NO];
        self->emailField.textColor = [NSColor colorWithCalibratedRed:0.872 green:0.197 blue:0.228 alpha:1.000];
        [self->emailField setWantsLayer:YES];
        
        [emailFieldContainer addSubview:self->emailField];
        [emailFieldContainer setWantsLayer:YES];
        emailFieldContainer.layer.cornerRadius = kMacchiatoEmailSubscriptionWindowButtonRadius;
        emailFieldContainer.layer.borderWidth = 1.0;
        emailFieldContainer.layer.borderColor = blueColor.CGColor;

}


- (void)show {
    [NSApp runModalForWindow:self.window];
    [self.window makeKeyAndOrderFront:nil];
    [self.window makeFirstResponder:self->emailField];
}

NewsletterWindow.m

//
//  NewsletterWindow.m
//  Macchiato
//
//  Created by Kenneth Ballenegger on 4/7/13.
//  Copyright (c) 2013 Azure Talon. All rights reserved.
//


const NSSize kNewsletterWindowSize = (NSSize){.width = 800/2, .height = 508/2};





#import "NewsletterWindow.h"

@implementation NewsletterWindow {
    @private
    NSView *childContentView;
}



- (id)initWithContentRect:(__unused NSRect)rect styleMask:(NSUInteger)windowStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation {

    NSSize screenSize = [[NSScreen mainScreen] visibleFrame].size;
    NSPoint origin = (NSPoint){
        .x = (screenSize.width / 2 - kNewsletterWindowSize.width),
        .y = (screenSize.height / 2 - kNewsletterWindowSize.height)
    };
    
    NSRect contentRect = (NSRect){.origin = origin, .size = kNewsletterWindowSize};
    
    self = [super initWithContentRect:contentRect
                            styleMask:NSBorderlessWindowMask
                              backing:bufferingType
                                defer:deferCreation];
    if (self) {
        [super setOpaque:NO];
        [super setBackgroundColor:[NSColor clearColor]];
    }
    return self;
}


- (NSRect)contentRectForFrameRect:(NSRect)frameRect {
    return frameRect;
}

+ (NSRect)frameRectForContentRect:(NSRect)cRect styleMask:(NSUInteger)_ {
    return cRect;
}




#pragma mark Override Super


- (void)setContentView:(NSView *)aView {
    if ([self->childContentView isEqualTo:aView]) {
        return;
    }
    
    NSRect bounds = self.frame;
    bounds.origin = NSZeroPoint;
    
    NSImageView *backgroundView = [super contentView];
    if (!backgroundView) {
        backgroundView = [[NSImageView alloc] initWithFrame:bounds];
        backgroundView.image = [NSImage imageNamed:@"NewsletterWindow"];
        [super setContentView:backgroundView];
    }
    
    if (self->childContentView) {
        [self->childContentView removeFromSuperview];
    }
    
    self->childContentView = aView;
    [self->childContentView setFrame:[self contentRectForFrameRect:bounds]];
    [self->childContentView setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable];
    [backgroundView addSubview:self->childContentView];
}

- (NSView *)contentView {
    return self->childContentView;
}

//- (void)setFrame:(NSRect)frameRect display:(BOOL)flag {
//    [self setFrame:frameRect display:flag animate:NO];
//}
//
//- (void)setFrame:(NSRect)frameRect display:(BOOL)displayFlag animate:(BOOL)animateFlag {
//    frameRect.size = kNewsletterWindowSize;
//    [super setFrame:frameRect display:displayFlag animate:animateFlag];
//}

- (void)setOpaque:(BOOL)isOpaque {
    [super setOpaque:NO];
}

- (void)setBackgroundColor:(NSColor *)color {
    [super setBackgroundColor:[NSColor clearColor]];
}


@end