RCTRedBoxExtraDataViewController.m

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#import "RCTRedBoxExtraDataViewController.h"

@interface RCTRedBoxExtraDataCell : UITableViewCell

@property (nonatomic, strong) UILabel *keyLabel;
@property (nonatomic, strong) UILabel *valueLabel;

@end

@implementation RCTRedBoxExtraDataCell

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
  if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
    self.backgroundColor = [UIColor colorWithRed:0.8 green:0 blue:0 alpha:1];
    UILayoutGuide *contentLayout = self.contentView.layoutMarginsGuide;

    self.keyLabel = [UILabel new];
    [self.contentView addSubview:self.keyLabel];

    self.keyLabel.translatesAutoresizingMaskIntoConstraints = NO;
    [self.keyLabel.leadingAnchor constraintEqualToAnchor:contentLayout.leadingAnchor].active = YES;
    [self.keyLabel.topAnchor constraintEqualToAnchor:contentLayout.topAnchor].active = YES;
    [self.keyLabel.bottomAnchor constraintEqualToAnchor:contentLayout.bottomAnchor].active = YES;
    [self.keyLabel.widthAnchor constraintEqualToAnchor:contentLayout.widthAnchor multiplier:0.3].active = YES;

    self.keyLabel.textColor = [UIColor whiteColor];
    self.keyLabel.numberOfLines = 0;
#if !TARGET_OS_TV
    self.keyLabel.lineBreakMode = NSLineBreakByWordWrapping;
    self.keyLabel.font = [UIFont fontWithName:@"Menlo-Regular" size:12.0f];
#endif
    self.valueLabel = [UILabel new];
    [self.contentView addSubview:self.valueLabel];

    self.valueLabel.translatesAutoresizingMaskIntoConstraints = NO;
    [self.valueLabel.leadingAnchor constraintEqualToAnchor:self.keyLabel.trailingAnchor constant:10.f].active = YES;
    [self.valueLabel.trailingAnchor constraintEqualToAnchor:contentLayout.trailingAnchor].active = YES;
    [self.valueLabel.topAnchor constraintEqualToAnchor:contentLayout.topAnchor].active = YES;
    [self.valueLabel.bottomAnchor constraintEqualToAnchor:contentLayout.bottomAnchor].active = YES;

    self.valueLabel.textColor = [UIColor whiteColor];
    self.valueLabel.numberOfLines = 0;
#if !TARGET_OS_TV
    self.valueLabel.lineBreakMode = NSLineBreakByWordWrapping;
    self.valueLabel.font = [UIFont fontWithName:@"Menlo-Regular" size:12.0f];
#endif
  }
  return self;
}

@end

@interface RCTRedBoxExtraDataViewController ()

@end

@implementation RCTRedBoxExtraDataViewController {
  UITableView *_tableView;
  NSMutableArray *_extraDataTitle;
  NSMutableArray *_extraData;
}

@synthesize actionDelegate = _actionDelegate;

- (instancetype)init
{
  if (self = [super init]) {
    _extraData = [NSMutableArray new];
    _extraDataTitle = [NSMutableArray new];
    self.view.backgroundColor = [UIColor colorWithRed:0.8 green:0 blue:0 alpha:1];

    _tableView = [UITableView new];
    _tableView.delegate = self;
    _tableView.dataSource = self;
    _tableView.backgroundColor = [UIColor clearColor];
    _tableView.estimatedRowHeight = 200;
#if !TARGET_OS_TV
    _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
#endif
    _tableView.rowHeight = UITableViewAutomaticDimension;
    _tableView.allowsSelection = NO;

#if TARGET_OS_SIMULATOR || TARGET_OS_MACCATALYST
    NSString *reloadText = @"Reload JS (\u2318R)";
    NSString *dismissText = @"Dismiss (ESC)";
#else
    NSString *reloadText = @"Reload JS";
    NSString *dismissText = @"Dismiss";
#endif

    UIButton *dismissButton = [UIButton buttonWithType:UIButtonTypeCustom];
    dismissButton.translatesAutoresizingMaskIntoConstraints = NO;
    dismissButton.accessibilityIdentifier = @"redbox-extra-data-dismiss";
    dismissButton.titleLabel.font = [UIFont systemFontOfSize:13];
    [dismissButton setTitle:dismissText forState:UIControlStateNormal];
    [dismissButton setTitleColor:[UIColor colorWithWhite:1 alpha:0.5] forState:UIControlStateNormal];
    [dismissButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
    [dismissButton addTarget:self action:@selector(dismiss) forControlEvents:UIControlEventTouchUpInside];

    UIButton *reloadButton = [UIButton buttonWithType:UIButtonTypeCustom];
    reloadButton.accessibilityIdentifier = @"redbox-reload";
    reloadButton.titleLabel.font = [UIFont systemFontOfSize:13];
    [reloadButton setTitle:reloadText forState:UIControlStateNormal];
    [reloadButton setTitleColor:[UIColor colorWithWhite:1 alpha:0.5] forState:UIControlStateNormal];
    [reloadButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
    [reloadButton addTarget:self action:@selector(reload) forControlEvents:UIControlEventTouchUpInside];

    UIStackView *buttonStackView = [UIStackView new];
    buttonStackView.axis = UILayoutConstraintAxisHorizontal;
    buttonStackView.distribution = UIStackViewDistributionEqualSpacing;
    buttonStackView.alignment = UIStackViewAlignmentFill;
    buttonStackView.spacing = 20;

    [buttonStackView addArrangedSubview:dismissButton];
    [buttonStackView addArrangedSubview:reloadButton];
    buttonStackView.translatesAutoresizingMaskIntoConstraints = NO;

    UIStackView *mainStackView = [UIStackView new];
    mainStackView.axis = UILayoutConstraintAxisVertical;
    mainStackView.backgroundColor = [UIColor colorWithRed:0.8 green:0 blue:0 alpha:1];
    [mainStackView addArrangedSubview:_tableView];
    [mainStackView addArrangedSubview:buttonStackView];
    mainStackView.translatesAutoresizingMaskIntoConstraints = NO;

    [self.view addSubview:mainStackView];

    CGFloat tableHeight = self.view.bounds.size.height - 60.f;
    [_tableView.heightAnchor constraintEqualToConstant:tableHeight].active = YES;
    [_tableView.widthAnchor constraintEqualToAnchor:self.view.widthAnchor].active = YES;

    CGFloat buttonWidth = self.view.bounds.size.width / 4;
    [dismissButton.heightAnchor constraintEqualToConstant:60].active = YES;
    [dismissButton.widthAnchor constraintEqualToConstant:buttonWidth].active = YES;
    [reloadButton.heightAnchor constraintEqualToConstant:60].active = YES;
    [reloadButton.widthAnchor constraintEqualToConstant:buttonWidth].active = YES;
  }
  return self;
}

- (void)viewDidAppear:(BOOL)animated
{
  [super viewDidAppear:animated];
  [_tableView reloadData];
}

- (NSInteger)tableView:(__unused UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
  return [[_extraData objectAtIndex:section] count];
}

- (CGFloat)tableView:(__unused UITableView *)tableView heightForHeaderInSection:(__unused NSInteger)section
{
  return 40;
}

- (UIView *)tableView:(__unused UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
  UIView *view = [UIView new];
  view.backgroundColor = [UIColor colorWithRed:1 green:0 blue:0 alpha:1];

  UILabel *header = [UILabel new];
  [view addSubview:header];

  header.translatesAutoresizingMaskIntoConstraints = NO;
  [header.leadingAnchor constraintEqualToAnchor:view.leadingAnchor constant:5].active = YES;
  [header.trailingAnchor constraintEqualToAnchor:view.trailingAnchor].active = YES;
  [header.topAnchor constraintEqualToAnchor:view.topAnchor].active = YES;
  [header.bottomAnchor constraintEqualToAnchor:view.bottomAnchor].active = YES;

  header.textColor = [UIColor whiteColor];
  header.font = [UIFont fontWithName:@"Menlo-Bold" size:14.0f];
  header.text = [_extraDataTitle[section] uppercaseString];

  return view;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
  static NSString *reuseIdentifier = @"RedBoxExtraData";

  RCTRedBoxExtraDataCell *cell =
      (RCTRedBoxExtraDataCell *)[tableView dequeueReusableCellWithIdentifier:reuseIdentifier];

  if (cell == nil) {
    cell = [[RCTRedBoxExtraDataCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier];
  }

  NSArray *dataKVPair = _extraData[indexPath.section][indexPath.row];
  cell.keyLabel.text = dataKVPair[0];
  cell.valueLabel.text = dataKVPair[1];

  return cell;
}

- (NSInteger)numberOfSectionsInTableView:(__unused UITableView *)tableView
{
  return _extraDataTitle.count;
}

- (void)addExtraData:(NSDictionary *)data forIdentifier:(NSString *)identifier
{
  dispatch_async(dispatch_get_main_queue(), ^{
    NSMutableArray *newData = [NSMutableArray new];
    for (id key in data) {
      [newData addObject:@[
        [NSString stringWithFormat:@"%@", key],
        [NSString stringWithFormat:@"%@", [data objectForKey:key]]
      ]];
    }

    NSInteger idx = [self->_extraDataTitle indexOfObject:identifier];
    if (idx == NSNotFound) {
      [self->_extraDataTitle addObject:identifier];
      [self->_extraData addObject:newData];
    } else {
      [self->_extraData replaceObjectAtIndex:idx withObject:newData];
    }

    [self->_tableView reloadData];
  });
}

- (void)dismiss
{
  [self dismissViewControllerAnimated:YES completion:nil];
}

- (void)reload
{
  [_actionDelegate reload];
}

#pragma mark - Key commands

- (NSArray<UIKeyCommand *> *)keyCommands
{
  return @[
    // Dismiss
    [UIKeyCommand keyCommandWithInput:UIKeyInputEscape modifierFlags:0 action:@selector(dismiss)],
    // Reload
    [UIKeyCommand keyCommandWithInput:@"r" modifierFlags:UIKeyModifierCommand action:@selector(reload)]
  ];
}

@end