Constraints category

PomTaskView+Constraints.m

#import "PomTaskView+Constraints.h"

@implementation PomTaskView (Constraints)

- (void)updateConstraints {
  [super updateConstraints];
  
  NSMutableArray *constraints = [NSMutableArray new];
  NSDictionary *views = [self subviewsDictionary];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[_button(buttonHeight)]|"
                                                                         options:0
                                                                           metrics:[self metrics]
                                                                           views:views]];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|[_button]|"
                                                                         options:0
                                                                         metrics:nil
                                                                           views:views]];


  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[_repeatLabel(70)][_button]"
                                                                         options:0
                                                                         metrics:nil
                                                                           views:views]];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|-padding-[_repeatLabel]-[_repeatSwitch]-padding-|"
                                                                           options:NSLayoutFormatAlignAllCenterY
                                                                           metrics:[self metrics]
                                                                             views:views]];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|[_textField]|"
                                                                           options:0
                                                                           metrics:nil
                                                                             views:views]];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[_textField][_repeatLabel]"
                                                                           options:0
                                                                           metrics:nil
                                                                             views:views]];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[_pickerView][_textField]"
                                                                           options:0
                                                                           metrics:nil
                                                                             views:views]];

  [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"|[_pickerView]|"
                                                                           options:0
                                                                           metrics:nil
                                                                             views:views]];

  [self addConstraints:constraints];
}

- (NSDictionary *)metrics {
  return @{
           @"buttonHeight": @80,
           @"padding": [NSNumber numberWithInt:POM_TEXT_FIELD_PADDING]
           };
}


@end

PomTaskView.m

//
//  PomTaskView.m
//  PomodoroTasks
//
//  Created by Moudy Elkammash on 8/31/13.
//  Copyright (c) 2013 Moudy. All rights reserved.
//

#import "PomTaskView.h"
#import "PomTaskView+Constraints.h"
#import "PomTextField.h"
#import "UIColor+PomColor.h"
#import "PomScrollForTextField.h"
#import "PomPickerView.h"
#import "PomAppDelegate.h"

#define POMPickerLabelTag 1

@interface PomTaskView()

@property (nonatomic, strong) UIButton *button;
@property (nonatomic, strong) UILabel *repeatLabel;
@property (nonatomic, strong) UISwitch *repeatSwitch;
@property (nonatomic, strong) PomTextField *textField;
@property (nonatomic, strong) PomPickerView *pickerView;
@property (nonatomic, strong) PomScrollForTextField *scrollForTextField;

@end

@implementation PomTaskView

- (instancetype)initWithFrame:(CGRect)frame {
  if (self = [super initWithFrame:frame]) {
    self.backgroundColor = [UIColor pomBackgroundColor];
    [self addSubviews];
    [self registerForNotifications];
  }

  return self;
}

- (NSDictionary *)subviewsDictionary {
  return NSDictionaryOfVariableBindings(_button,
                                        _repeatLabel,
                                        _repeatSwitch,
                                        _pickerView,
                                        _textField);
}

- (void)addSubviews {
  [@[self.button,
     self.repeatLabel,
     self.textField,
     self.pickerView,
     self.repeatSwitch] enumerateObjectsUsingBlock:^(UIView *subview, NSUInteger idx, BOOL *stop) {
    subview.translatesAutoresizingMaskIntoConstraints = NO;
    [self addSubview:subview];
  }];

  self.scrollForTextField = [[PomScrollForTextField alloc] initWithTextField:self.textField inView:self];
}

- (void)configureWithTask:(PomTaskPresenter *)task {
  // TODO - constants for component ints
  [self.pickerView selectWorkTimeRow:[task rowForTaskTime]];
  [self.pickerView selectBreakTimeRow:[task rowForBreakTime]];

  self.textField.text = task.name;
  self.repeatSwitch.on = task.repeat;
}

- (void)registerForNotifications {
  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(textFieldTextDidChange:)
                                               name:UITextFieldTextDidChangeNotification
                                             object:self.textField];
}

#pragma mark - Picker View Delegate
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
  NSLog(@"%s", __PRETTY_FUNCTION__);
}

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
  if (!view){
    view = [UIView new];
    UILabel *l = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 50, 34)];
    l.tag = POMPickerLabelTag;
    l.textAlignment = NSTextAlignmentRight;
    l.font=[l.font fontWithSize:20];

    int originX = component == 0 ? 0 : -40;

    CGRect frame = l.frame;
    frame.origin.x = originX;
    l.frame = frame;
    [view addSubview:l];
  }

  UILabel *label = (UILabel *)[view viewWithTag:POMPickerLabelTag];
  label.text = [[PomAppDelegate sharedDelegate].timeOptions titleForRow:row forIndex:component];
  return view;
}

#pragma mark - Picker View Data Source
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
  return [[PomAppDelegate sharedDelegate].timeOptions numberOfOptionTypes];
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
  return [[PomAppDelegate sharedDelegate].timeOptions numberOfOptionsForTypeWithIndex:component];
}


#pragma mark - Name Textfield
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
  // Any additional checks to ensure you have the correct textField here.
  [textField resignFirstResponder];
  return YES;
}

- (void)textFieldTextDidChange:(NSNotification *)notification {
  UITextField *tf = notification.object;
  NSString *name = tf.text;

  NSLog(@"name was chaged: %@", name);
}

#pragma mark - Subview Initializers
- (UILabel *)repeatLabel {
  if(!_repeatLabel) {
    _repeatLabel = [[UILabel alloc] initWithFrame:CGRectMake(50, 50, 50, 50)];
    _repeatLabel.text = @"Repeat";
    //_repeatLabel.backgroundColor = [UIColor blueColor];
  }

  return _repeatLabel;
}

- (UIButton *)button {
  if(!_button) {
    _button = [UIButton new];
    //_button.backgroundColor = [UIColor redColor];
    [_button setTitle:@"Button Text" forState:UIControlStateNormal];
  }

  return _button;
}

- (UISwitch *)repeatSwitch {
  if(!_repeatSwitch) {
    _repeatSwitch = [[UISwitch alloc] initWithFrame:CGRectMake(50, 50, 50, 50)];
  }

  return _repeatSwitch;
}

- (PomTextField *)textField {
  if(!_textField) {
    _textField = [PomTextField new];
    _textField.placeholder = @"Task Name";
    _textField.delegate = self;
    //_textField.backgroundColor = [UIColor greenColor];
    _textField.returnKeyType = UIReturnKeyDone;
  }

  return _textField;
}

- (UIPickerView *)pickerView {
  if(!_pickerView) {
    _pickerView = [PomPickerView new];
    _pickerView.delegate = self;
    _pickerView.dataSource = self;
  }

  return _pickerView;
}

@end