xref: /expo/ios/Client/Menu/EXDevMenuWindow.m (revision f1012652)

// Copyright 2015-present 650 Industries. All rights reserved.

#import "EXDevMenuWindow.h"
#import "EXDevMenuViewController.h"
#import "EXDevMenuManager.h"

@interface EXDevMenuWindow ()

@property (nonatomic, strong) EXDevMenuViewController *viewController;

@end

@implementation EXDevMenuWindow

#pragma mark - UIWindow

- (instancetype)init
{
  if (self = [super init]) {
    // Set it just above the LogBox so users can easily access it.
    // https://github.com/facebook/react-native/blob/0.64-stable/React/CoreModules/RCTLogBoxView.mm#L38
    self.windowLevel = UIWindowLevelStatusBar;
    self.backgroundColor = [UIColor clearColor];
    self.hidden = YES;
  }
  return self;
}

- (void)makeKeyAndVisible
{
  [super makeKeyAndVisible];

  // `makeKeyAndVisible` apparently doesn't call `hidden` setter so make sure the root view is attached.
  [self attachRootViewController];
}

- (void)setHidden:(BOOL)hidden
{
  [super setHidden:hidden];

  // Reset `rootViewController` so it gets appearing/disappearing events that we depend on.
  if (hidden) {
    [self detachRootViewController];
  } else {
    [self attachRootViewController];
  }
}

#pragma mark - internal

- (void)attachRootViewController
{
  if (!_viewController) {
    _viewController = [EXDevMenuViewController new];
  }
  self.rootViewController = _viewController;
}

- (void)detachRootViewController
{
  self.rootViewController = nil;
}

@end