src/darwin/CHIPTool/CHIPTool/View Controllers/Wifi/WifiViewController.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 "WifiViewController.h"
  19 #import "CHIPUIViewUtils.h"
  20 #import "DefaultsUtils.h"
  21
  22 @interface WifiViewController ()
  23 @property (strong, nonatomic) UITextField * networkSSID;
  24 @property (strong, nonatomic) UITextField * networkPassword;
  25 @property (strong, nonatomic) UIButton * saveButton;
  26 @property (strong, nonatomic) UIButton * clearButton;
  27 @end
  28
  29 @implementation WifiViewController
  30
  31 // MARK: UIViewController methods
  32
  33 - (void)viewDidLoad
  34 {
  35     [super viewDidLoad];
  36     [self setupUI];
  37
  38     UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)];
  39     [self.view addGestureRecognizer:tap];
  40 }
  41
  42 - (void)viewWillAppear:(BOOL)animated
  43 {
  44     [self fillNetworkConfigWithDefaults];
  45 }
  46
  47 - (void)dismissKeyboard
  48 {
  49     [self.networkSSID resignFirstResponder];
  50     [self.networkPassword resignFirstResponder];
  51 }
  52
  53 // MARK: UI helpers
  54
  55 - (void)setupUI
  56 {
  57     self.view.backgroundColor = UIColor.whiteColor;
  58
  59     // Title
  60     UILabel * titleLabel = [CHIPUIViewUtils addTitle:@"Network Configuration" toView:self.view];
  61
  62     // stack view
  63     UIStackView * stackView = [UIStackView new];
  64     stackView.axis = UILayoutConstraintAxisVertical;
  65     stackView.distribution = UIStackViewDistributionFill;
  66     stackView.alignment = UIStackViewAlignmentLeading;
  67     stackView.spacing = 30;
  68     [self.view addSubview:stackView];
  69
  70     stackView.translatesAutoresizingMaskIntoConstraints = false;
  71     [stackView.topAnchor constraintEqualToAnchor:titleLabel.bottomAnchor constant:30].active = YES;
  72     [stackView.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor constant:30].active = YES;
  73     [stackView.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor constant:-30].active = YES;
  74
  75     // info label
  76     UILabel * informationLabel = [UILabel new];
  77     informationLabel.font = [UIFont systemFontOfSize:17 weight:UIFontWeightThin];
  78     informationLabel.text = @"Please provide the home network your phone is connected to.";
  79     informationLabel.numberOfLines = 0;
  80     [stackView addArrangedSubview:informationLabel];
  81     informationLabel.translatesAutoresizingMaskIntoConstraints = false;
  82
  83     // wifi entry
  84     UILabel * ssidLabel = [UILabel new];
  85     ssidLabel.text = @"SSID";
  86     _networkSSID = [UITextField new];
  87     UIView * ssidView = [CHIPUIViewUtils viewWithLabel:ssidLabel textField:_networkSSID];
  88     [stackView addArrangedSubview:ssidView];
  89     ssidView.translatesAutoresizingMaskIntoConstraints = false;
  90     [ssidView.trailingAnchor constraintEqualToAnchor:stackView.trailingAnchor].active = YES;
  91
  92     // password entry
  93     UILabel * passwordLabel = [UILabel new];
  94     passwordLabel.text = @"Password";
  95     _networkPassword = [UITextField new];
  96     [_networkPassword setSecureTextEntry:YES];
  97     UIView * passwordView = [CHIPUIViewUtils viewWithLabel:passwordLabel textField:_networkPassword];
  98     [stackView addArrangedSubview:passwordView];
  99     [passwordView.trailingAnchor constraintEqualToAnchor:stackView.trailingAnchor].active = YES;
 100
 101     // Button stack view
 102     _clearButton = [UIButton new];
 103     [_clearButton setTitle:@"Clear" forState:UIControlStateNormal];
 104     _saveButton = [UIButton new];
 105     [_saveButton setTitle:@"Save" forState:UIControlStateNormal];
 106     [_clearButton addTarget:self action:@selector(clearCredientials:) forControlEvents:UIControlEventTouchUpInside];
 107     [_saveButton addTarget:self action:@selector(saveCredientials:) forControlEvents:UIControlEventTouchUpInside];
 108
 109     UIStackView * stackViewButtons = [CHIPUIViewUtils stackViewWithButtons:@[ _clearButton, _saveButton ]];
 110     [stackView addArrangedSubview:stackViewButtons];
 111     [stackViewButtons.trailingAnchor constraintEqualToAnchor:stackView.trailingAnchor].active = YES;
 112 }
 113
 114 - (void)fillNetworkConfigWithDefaults
 115 {
 116     NSString * networkSSID = CHIPGetDomainValueForKey(kCHIPToolDefaultsDomain, kNetworkSSIDDefaultsKey);
 117     if ([networkSSID length] > 0) {
 118         self.networkSSID.text = networkSSID;
 119     }
 120
 121     NSString * networkPassword = CHIPGetDomainValueForKey(kCHIPToolDefaultsDomain, kNetworkPasswordDefaultsKey);
 122     if ([networkPassword length] > 0) {
 123         self.networkPassword.text = networkPassword;
 124     }
 125 }
 126
 127 // MARK: Button methods
 128
 129 - (IBAction)saveCredientials:(id)sender
 130 {
 131     if ([self.networkSSID.text length] > 0) {
 132         CHIPSetDomainValueForKey(kCHIPToolDefaultsDomain, kNetworkSSIDDefaultsKey, self.networkSSID.text);
 133     }
 134
 135     if ([self.networkPassword.text length] > 0) {
 136         CHIPSetDomainValueForKey(kCHIPToolDefaultsDomain, kNetworkPasswordDefaultsKey, self.networkPassword.text);
 137     }
 138
 139     [self.navigationController popViewControllerAnimated:YES];
 140 }
 141
 142 - (IBAction)clearCredientials:(id)sender
 143 {
 144     if ([self.networkSSID.text length] > 0) {
 145         CHIPSetDomainValueForKey(kCHIPToolDefaultsDomain, kNetworkSSIDDefaultsKey, nil);
 146     }
 147
 148     if ([self.networkPassword.text length] > 0) {
 149         CHIPSetDomainValueForKey(kCHIPToolDefaultsDomain, kNetworkPasswordDefaultsKey, nil);
 150     }
 151
 152     self.networkSSID.text = @"";
 153     self.networkPassword.text = @"";
 154 }
 155 @end