src/darwin/CHIPTool/CHIPTool/View Controllers/Echo client/EchoViewController.m

   1 /**
   2  *
   3  *    Copyright (c) 2020 Project CHIP Authors
   4  *
   5  *    Licensed under the Apache License, Version 2.0 (the "License");
   6  *    you may not use this file except in compliance with the License.
   7  *    You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *    Unless required by applicable law or agreed to in writing, software
  12  *    distributed under the License is distributed on an "AS IS" BASIS,
  13  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *    See the License for the specific language governing permissions and
  15  *    limitations under the License.
  16  */
  17
  18 #import "EchoViewController.h"
  19
  20 #import "CHIPUIViewUtils.h"
  21 #import "DefaultsUtils.h"
  22
  23 @interface EchoViewController ()
  24
  25 @property (strong, nonatomic) UITextField * messageTextField;
  26 @property (strong, nonatomic) UIButton * sendButton;
  27
  28 @property (nonatomic, strong) UILabel * resultLabel;
  29 @property (nonatomic, strong) UIStackView * stackView;
  30
  31 @property (readwrite) CHIPBasic * cluster;
  32
  33 @end
  34
  35 @implementation EchoViewController
  36
  37 // MARK: UIViewController methods
  38
  39 - (void)viewDidLoad
  40 {
  41     [super viewDidLoad];
  42     [self setupUIElements];
  43
  44     // listen for taps to dismiss the keyboard
  45     UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)];
  46     [self.view addGestureRecognizer:tap];
  47
  48     self.cluster = [[CHIPBasic alloc] initWithDevice:CHIPGetPairedDevice() endpoint:1 queue:dispatch_get_main_queue()];
  49 }
  50
  51 - (void)dismissKeyboard
  52 {
  53     [self.messageTextField resignFirstResponder];
  54 }
  55
  56 // MARK: UI Setup
  57
  58 - (void)setupUIElements
  59 {
  60     self.view.backgroundColor = UIColor.whiteColor;
  61
  62     // Title
  63     UILabel * titleLabel = [CHIPUIViewUtils addTitle:@"Echo client" toView:self.view];
  64
  65     // stack view
  66     _stackView = [UIStackView new];
  67     _stackView.axis = UILayoutConstraintAxisVertical;
  68     _stackView.distribution = UIStackViewDistributionEqualSpacing;
  69     _stackView.alignment = UIStackViewAlignmentLeading;
  70     _stackView.spacing = 30;
  71     [self.view addSubview:_stackView];
  72
  73     _stackView.translatesAutoresizingMaskIntoConstraints = false;
  74     [_stackView.topAnchor constraintEqualToAnchor:titleLabel.bottomAnchor constant:30].active = YES;
  75     [_stackView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor constant:30].active = YES;
  76     [_stackView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor constant:-30].active = YES;
  77
  78     // Send message
  79     _messageTextField = [UITextField new];
  80     _messageTextField.placeholder = @"Hello from iOS!";
  81     _sendButton = [UIButton new];
  82     [_sendButton setTitle:@"Send" forState:UIControlStateNormal];
  83     [_sendButton addTarget:self action:@selector(sendMessage:) forControlEvents:UIControlEventTouchUpInside];
  84     UIView * sendMessageView = [CHIPUIViewUtils viewWithUITextField:_messageTextField button:_sendButton];
  85     [_stackView addArrangedSubview:sendMessageView];
  86     sendMessageView.translatesAutoresizingMaskIntoConstraints = false;
  87     [sendMessageView.trailingAnchor constraintEqualToAnchor:_stackView.trailingAnchor].active = YES;
  88
  89     // Result message
  90     _resultLabel = [UILabel new];
  91     _resultLabel.hidden = YES;
  92     _resultLabel.font = [UIFont systemFontOfSize:17];
  93     _resultLabel.textColor = UIColor.systemBlueColor;
  94     _resultLabel.lineBreakMode = NSLineBreakByWordWrapping;
  95     _resultLabel.numberOfLines = 0;
  96     [_stackView addArrangedSubview:_resultLabel];
  97
  98     _resultLabel.translatesAutoresizingMaskIntoConstraints = false;
  99     [_resultLabel.trailingAnchor constraintEqualToAnchor:_stackView.trailingAnchor].active = YES;
 100     _resultLabel.adjustsFontSizeToFitWidth = YES;
 101 }
 102
 103 - (void)updateResult:(NSString *)result
 104 {
 105     _resultLabel.hidden = NO;
 106     _resultLabel.text = result;
 107 }
 108
 109 // MARK: UIButton actions
 110
 111 - (IBAction)sendMessage:(id)sender
 112 {
 113     if (!self.cluster) {
 114         [self updateResult:@"Something went wrong. Cluster is not initialized."];
 115     }
 116
 117     NSString * msg = [self.messageTextField text];
 118     if (msg.length == 0) {
 119         msg = [self.messageTextField placeholder];
 120     }
 121
 122     [self updateResult:@"MfgSpecificPing command sent..."];
 123
 124     [self.cluster mfgSpecificPing:^(NSError * error, NSDictionary * values) {
 125         NSString * resultString = (error == nil) ? @"MfgSpecificPing command: success!"
 126                                                  : [NSString stringWithFormat:@"An error occured: 0x%02lx", error.code];
 127         [self updateResult:resultString];
 128     }];
 129 }
 130
 131 @end