User verification: Update room member details screen with security section and shields.

2026-04-30 13:16:58 +02:00 · 2020-01-30 18:05:41 +01:00
parent 11eb717bb8
commit 0e0bc5557e
5 changed files with 297 additions and 76 deletions
@@ -18,18 +18,6 @@

 #import "DeviceTableViewCell.h"

-@interface RoomMemberDetailsViewController : MXKRoomMemberDetailsViewController <UIGestureRecognizerDelegate, DeviceTableViewCellDelegate>
+@interface RoomMemberDetailsViewController : MXKRoomMemberDetailsViewController

-@property (weak, nonatomic) IBOutlet UIView *roomMemberAvatarHeaderBackground;
-@property (weak, nonatomic) IBOutlet NSLayoutConstraint *roomMemberAvatarHeaderBackgroundHeightConstraint;
-
-@property (weak, nonatomic) IBOutlet UIView *memberHeaderView;
-@property (weak, nonatomic) IBOutlet UIView *roomMemberAvatarMask;
-@property (weak, nonatomic) IBOutlet UILabel *roomMemberNameLabel;
-@property (weak, nonatomic) IBOutlet UIView *roomMemberNameLabelMask;
-
-@property (weak, nonatomic) IBOutlet UILabel *roomMemberStatusLabel;
-
-@property (weak, nonatomic) IBOutlet UIImageView *bottomImageView;
@end
-
@@ -33,10 +33,13 @@
 #define TABLEVIEW_SECTION_HEADER_HEIGHT   28
 #define TABLEVIEW_SECTION_HEADER_HEIGHT_WHEN_HIDDEN 0.01f

-@interface RoomMemberDetailsViewController () <RoomMemberTitleViewDelegate, DeviceVerificationCoordinatorBridgePresenterDelegate>
+@interface RoomMemberDetailsViewController () <UIGestureRecognizerDelegate, DeviceTableViewCellDelegate, RoomMemberTitleViewDelegate, DeviceVerificationCoordinatorBridgePresenterDelegate>
 {
    RoomMemberTitleView* memberTitleView;
    
+    NSInteger securityIndex;
+    NSMutableArray<NSNumber*> *securityActionsArray;
+    
    /**
     List of the admin actions on this member.
     */
@@ -78,6 +81,26 @@
     */
    BOOL isStatusBarHidden;
 }
+
+@property (weak, nonatomic) IBOutlet UIView *roomMemberAvatarHeaderBackground;
+@property (weak, nonatomic) IBOutlet NSLayoutConstraint *roomMemberAvatarHeaderBackgroundHeightConstraint;
+
+@property (weak, nonatomic) IBOutlet UIView *memberHeaderView;
+@property (weak, nonatomic) IBOutlet UIView *roomMemberAvatarMask;
+@property (weak, nonatomic) IBOutlet UIImageView *roomMemberAvatarBadgeImageView;
+
+@property (weak, nonatomic) IBOutlet UILabel *roomMemberNameLabel;
+@property (weak, nonatomic) IBOutlet UIView *roomMemberNameLabelMask;
+
+@property (weak, nonatomic) IBOutlet UILabel *roomMemberStatusLabel;
+
+@property (weak, nonatomic) IBOutlet UIImageView *bottomImageView;
+
+
+@property(nonatomic) UserEncryptionTrustLevel encryptionTrustLevel;
+
+@property(nonatomic, strong) UserVerificationCoordinatorBridgePresenter *userVerificationCoordinatorBridgePresenter;
+
@end

@implementation RoomMemberDetailsViewController
@@ -105,6 +128,7 @@
    // Setup `MXKViewControllerHandling` properties
    self.enableBarTintColorStatusChange = NO;
    self.rageShakeManager = [RageShakeManager sharedManager];
+    self.encryptionTrustLevel = UserEncryptionTrustLevelUnknown;
    
    adminActionsArray = [[NSMutableArray alloc] init];
    otherActionsArray = [[NSMutableArray alloc] init];
@@ -195,10 +219,15 @@
    [self.tableView registerClass:TableViewCellWithButton.class forCellReuseIdentifier:[TableViewCellWithButton defaultReuseIdentifier]];
    [self.tableView registerClass:RoomTableViewCell.class forCellReuseIdentifier:[RoomTableViewCell defaultReuseIdentifier]];
    [self.tableView registerClass:DeviceTableViewCell.class forCellReuseIdentifier:[DeviceTableViewCell defaultReuseIdentifier]];
+    [self.tableView registerClass:MXKTableViewCell.class forCellReuseIdentifier:[MXKTableViewCell defaultReuseIdentifier]];
    
    // Hide line separators of empty cells
    self.tableView.tableFooterView = [[UIView alloc] init];
    
+    // Enable self sizing cells
+    self.tableView.rowHeight = UITableViewAutomaticDimension;
+    self.tableView.estimatedRowHeight = 50;
+    
    // Observe UIApplicationWillChangeStatusBarOrientationNotification to hide/show bubbles bg.
    UIApplicationWillChangeStatusBarOrientationNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillChangeStatusBarOrientationNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif) {
        
@@ -262,6 +291,8 @@
    // Handle here the bottom image visibility
    UIInterfaceOrientation screenOrientation = [[UIApplication sharedApplication] statusBarOrientation];
    self.bottomImageView.hidden = (screenOrientation == UIInterfaceOrientationLandscapeLeft || screenOrientation == UIInterfaceOrientationLandscapeRight);
+    
+    [self refreshUserEncryptionTrustLevel];
 }

 - (void)viewWillDisappear:(BOOL)animated
@@ -382,14 +413,18 @@
        
        NSString* presenceText;
        
-        if (self.mxRoomMember.userId)
+        NSString *userId = self.mxRoomMember.userId;
+        
+        if (userId)
        {
-            MXUser *user = [self.mxRoom.mxSession userWithUserId:self.mxRoomMember.userId];
+            MXUser *user = [self.mxRoom.mxSession userWithUserId:userId];
            presenceText = [Tools presenceText:user];
        }
        
        self.roomMemberStatusLabel.text = presenceText;
        
+        self.roomMemberAvatarBadgeImageView.image = self.userEncryptionBadgeImage;
+        
        // Retrieve the existing direct chats
        [directChatsArray removeAllObjects];
        NSArray *directRoomIds = self.mainSession.directRooms[self.mxRoomMember.userId];
@@ -403,39 +438,134 @@
        }
        
        // Retrieve member's devices
-        NSString *userId = self.mxRoomMember.userId;
        __weak typeof(self) weakSelf = self;
-
-        [self.mxRoom.mxSession.crypto downloadKeys:@[userId] forceDownload:NO success:^(MXUsersDevicesMap<MXDeviceInfo *> *usersDevicesInfoMap, NSDictionary<NSString *,MXCrossSigningInfo *> *crossSigningKeysMap) {
-
-            if (weakSelf)
-            {
-                // Restore the status bar
-                typeof(self) self = weakSelf;
-                self->devicesArray = usersDevicesInfoMap.map[userId].allValues;
-                // Reload the full table to take into account a potential change on a device status.
-                [super updateMemberInfo];
-            }
-
-        } failure:^(NSError *error) {
-
-            NSLog(@"[RoomMemberDetailsVC] Crypto failed to download device info for user: %@", userId);
-            if (weakSelf)
-            {
-                // Restore the status bar
-                typeof(self) self = weakSelf;
-                // Notify the end user
-                NSString *myUserId = self.mainSession.myUser.userId;
-                [[NSNotificationCenter defaultCenter] postNotificationName:kMXKErrorNotification object:error userInfo:myUserId ? @{kMXKErrorUserIdKey: myUserId} : nil];
-            }
-            
-        }];
+        
+        if (!RiotSettings.shared.enableCrossSigning)
+        {
+            [self.mxRoom.mxSession.crypto downloadKeys:@[userId] forceDownload:NO success:^(MXUsersDevicesMap<MXDeviceInfo *> *usersDevicesInfoMap, NSDictionary<NSString *,MXCrossSigningInfo *> *crossSigningKeysMap) {
+                
+                if (weakSelf)
+                {
+                    // Restore the status bar
+                    typeof(self) self = weakSelf;
+                    self->devicesArray = usersDevicesInfoMap.map[userId].allValues;
+                    // Reload the full table to take into account a potential change on a device status.
+                    [super updateMemberInfo];
+                }
+                
+            } failure:^(NSError *error) {
+                
+                NSLog(@"[RoomMemberDetailsVC] Crypto failed to download device info for user: %@", userId);
+                if (weakSelf)
+                {
+                    // Restore the status bar
+                    typeof(self) self = weakSelf;
+                    // Notify the end user
+                    NSString *myUserId = self.mainSession.myUser.userId;
+                    [[NSNotificationCenter defaultCenter] postNotificationName:kMXKErrorNotification object:error userInfo:myUserId ? @{kMXKErrorUserIdKey: myUserId} : nil];
+                }
+                
+            }];
+        }
    }
    
    // Complete data update and reload table view
    [super updateMemberInfo];
 }

+- (void)refreshUserEncryptionTrustLevel
+{
+    NSString *userId = self.mxRoomMember.userId;
+    
+    if (!userId)
+    {
+        return;
+    }
+    
+    if (self.mxRoom.summary.isEncrypted && self.mxRoom.mxSession.crypto)
+    {
+        [self.mxRoom.mxSession.crypto trustLevelSummaryForUserIds:@[userId] success:^(MXUsersTrustLevelSummary *usersTrustLevelSummary) {
+            
+            double trustedDevicesPercentage = usersTrustLevelSummary.trustedDevicesProgress.fractionCompleted;
+            
+            UserEncryptionTrustLevel userEncryptionTrustLevel;
+            
+            if (trustedDevicesPercentage >= 1.0)
+            {
+                userEncryptionTrustLevel = UserEncryptionTrustLevelTrusted;
+            }
+            else if (trustedDevicesPercentage == 0.0)
+            {
+                userEncryptionTrustLevel = UserEncryptionTrustLevelNormal;
+            }
+            else
+            {
+                userEncryptionTrustLevel = UserEncryptionTrustLevelWarning;
+            }
+            
+            self.encryptionTrustLevel = userEncryptionTrustLevel;
+            [self updateMemberInfo];
+            
+        } failure:^(NSError *error) {
+            NSLog(@"[RoomMemberDetailsViewController] Fails to retrieve trust level summary with error: %@", error);
+        }];
+    }
+    else
+    {
+        self.encryptionTrustLevel = UserEncryptionTrustLevelNone;
+        [self updateMemberInfo];
+    }
+}
+
+- (UIImage*)userEncryptionBadgeImage
+{
+    NSString *encryptionIconName;
+    UIImage *encryptionIcon;
+
+    UserEncryptionTrustLevel userEncryptionTrustLevel = self.encryptionTrustLevel;
+        
+    switch (userEncryptionTrustLevel) {
+        case RoomEncryptionTrustLevelWarning:
+            encryptionIconName = @"encryption_warning";
+            break;
+        case RoomEncryptionTrustLevelNormal:
+            encryptionIconName = @"encryption_normal";
+            break;
+        case RoomEncryptionTrustLevelTrusted:
+            encryptionIconName = @"encryption_trusted";
+            break;
+        default:
+            break;
+    }
+    
+    if (encryptionIconName)
+    {
+        encryptionIcon = [UIImage imageNamed:encryptionIconName];
+    }
+    
+    return encryptionIcon;
+}
+
+- (BOOL)isRoomMemberCurrentUser
+{
+    return [self.mxRoomMember.userId isEqualToString:self.mainSession.myUser.userId];
+}
+
+- (void)startUserVerification
+{
+    [[AppDelegate theDelegate] presentUserVerificationForRoomMember:self.mxRoomMember session:self.mainSession];
+}
+
+- (void)presentUserVerification
+{
+    UserVerificationCoordinatorBridgePresenter *userVerificationCoordinatorBridgePresenter = [[UserVerificationCoordinatorBridgePresenter alloc] initWithPresenter:self
+                                                                                                                                                           session:self.mxRoom.mxSession
+                                                                                                                                                            userId:self.mxRoomMember.userId
+                                                                                                                                                   userDisplayName:self.mxRoomMember.displayname];
+    [userVerificationCoordinatorBridgePresenter start];
+    self.userVerificationCoordinatorBridgePresenter = userVerificationCoordinatorBridgePresenter;
+}
+
 #pragma mark - Hide/Show navigation bar border

 - (void)hideNavigationBarBorder:(BOOL)isHidden
@@ -484,7 +614,7 @@
    [otherActionsArray removeAllObjects];
    
    // Consider the case of the user himself
-    if ([self.mxRoomMember.userId isEqualToString:self.mainSession.myUser.userId])
+    if (self.isRoomMemberCurrentUser)
    {
        isOneself = YES;
        
@@ -618,7 +748,12 @@
        }
    }
    
-    adminToolsIndex = otherActionsIndex = directChatsIndex = devicesIndex = -1;
+    securityIndex = adminToolsIndex = otherActionsIndex = directChatsIndex = devicesIndex = -1;
+    
+    if (RiotSettings.shared.enableCrossSigning)
+    {
+        securityIndex = sectionCount++;
+    }
    
    if (otherActionsArray.count)
    {
@@ -644,7 +779,23 @@

 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
 {
-    if (section == adminToolsIndex)
+    if (section == securityIndex)
+    {
+        NSInteger numberOfRows;
+        
+        switch (self.encryptionTrustLevel) {
+            case UserEncryptionTrustLevelUnknown:
+            case UserEncryptionTrustLevelNone:
+                numberOfRows = 1;
+                break;
+            default:
+                numberOfRows = 2;
+                break;
+        }
+        
+        return numberOfRows;
+    }
+    else if (section == adminToolsIndex)
    {
        return adminActionsArray.count;
    }
@@ -666,10 +817,18 @@

 - (nullable NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
 {
-    if (section == adminToolsIndex)
+    if (section == securityIndex)
+    {
+        return @"SECURITY";
+    }
+    else if (section == adminToolsIndex)
    {
        return NSLocalizedStringFromTable(@"room_participants_action_section_admin_tools", @"Vector", nil);
    }
+    else if (RiotSettings.shared.enableCrossSigning && section == otherActionsIndex)
+    {
+        return @"OPTIONS";
+    }
    else if (section == directChatsIndex)
    {
        return NSLocalizedStringFromTable(@"room_participants_action_section_direct_chats", @"Vector", nil);
@@ -741,7 +900,78 @@
 {
    UITableViewCell *cell;
    
-    if (indexPath.section == adminToolsIndex || indexPath.section == otherActionsIndex)
+    if (indexPath.section == securityIndex)
+    {
+        if (indexPath.row == [self tableView:self.tableView numberOfRowsInSection:indexPath.section] - 1)
+        {
+            MXKTableViewCell *encryptionInfoCell = [tableView dequeueReusableCellWithIdentifier:[MXKTableViewCell defaultReuseIdentifier] forIndexPath:indexPath];
+            
+            NSMutableString *encryptionInformation = [NSMutableString new];
+            
+            switch (self.encryptionTrustLevel) {
+                case UserEncryptionTrustLevelUnknown:
+                    [encryptionInformation appendString:@"Loading"];
+                    break;
+                case UserEncryptionTrustLevelNone:
+                    [encryptionInformation appendString:@"Messages in this room are not end-to-end encrypted."];
+                    break;
+                default:
+                    [encryptionInformation appendString:@"Messages in this room are end-to-end encrypted.\n\nYour messages are secured with locks and only you and the recipient have the unique keys to unlock them."];
+                    break;
+            }
+            
+            [encryptionInformation appendString:@"\n"];
+            
+            encryptionInfoCell.textLabel.backgroundColor = [UIColor clearColor];
+            encryptionInfoCell.textLabel.numberOfLines = 0;
+            encryptionInfoCell.textLabel.text = encryptionInformation;
+            encryptionInfoCell.textLabel.font = [UIFont systemFontOfSize:14.0];
+            encryptionInfoCell.textLabel.textColor = ThemeService.shared.theme.headerTextPrimaryColor;
+            
+            encryptionInfoCell.selectionStyle = UITableViewCellSelectionStyleNone;
+            encryptionInfoCell.accessoryType = UITableViewCellAccessoryNone;
+            encryptionInfoCell.contentView.backgroundColor = ThemeService.shared.theme.headerBackgroundColor;
+            encryptionInfoCell.backgroundColor = ThemeService.shared.theme.headerBackgroundColor;
+            
+            cell = encryptionInfoCell;
+        }
+        else
+        {
+            MXKTableViewCell *securityStatusCell = [tableView dequeueReusableCellWithIdentifier:[MXKTableViewCell defaultReuseIdentifier] forIndexPath:indexPath];
+            
+            NSString *statusText;
+            
+            switch (self.encryptionTrustLevel) {
+                case UserEncryptionTrustLevelTrusted:
+                    statusText = @"Verified";
+                    break;
+                case UserEncryptionTrustLevelNormal:
+                    statusText = @"Verify";
+                    break;
+                case UserEncryptionTrustLevelWarning:
+                    statusText = @"Warning";
+                    break;
+                default:
+                    statusText = @"Loading";
+                    break;
+            }
+            
+            securityStatusCell.imageView.image = self.userEncryptionBadgeImage;
+            
+            securityStatusCell.textLabel.numberOfLines = 1;
+            securityStatusCell.textLabel.font = [UIFont systemFontOfSize:16.0];
+            securityStatusCell.textLabel.textColor = ThemeService.shared.theme.textPrimaryColor;
+            securityStatusCell.textLabel.text = statusText;
+            
+            securityStatusCell.backgroundColor = ThemeService.shared.theme.backgroundColor;
+            securityStatusCell.contentView.backgroundColor = [UIColor clearColor];
+            securityStatusCell.selectionStyle = UITableViewCellSelectionStyleNone;
+            securityStatusCell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
+            
+            cell = securityStatusCell;
+        }
+    }
+    else if (indexPath.section == adminToolsIndex || indexPath.section == otherActionsIndex)
    {
        TableViewCellWithButton *cellWithButton = [tableView dequeueReusableCellWithIdentifier:[TableViewCellWithButton defaultReuseIdentifier] forIndexPath:indexPath];
        
@@ -852,26 +1082,9 @@
    }
 }

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
-{
-    if (indexPath.section == directChatsIndex)
-    {
-        return [RoomTableViewCell cellHeight];
-    }
-    else if (indexPath.section == devicesIndex)
-    {
-        if (indexPath.row < devicesArray.count)
-        {
-            return [DeviceTableViewCell cellHeightWithDeviceInfo:devicesArray[indexPath.row] andCellWidth:self.tableView.frame.size.width];
-        }
-    }
-    
-    return TABLEVIEW_ROW_CELL_HEIGHT;
-}
-
 - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
 {
-    if (section == otherActionsIndex)
+    if (!RiotSettings.shared.enableCrossSigning && section == otherActionsIndex)
    {
        return TABLEVIEW_SECTION_HEADER_HEIGHT_WHEN_HIDDEN;
    }
@@ -881,7 +1094,18 @@

 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(nonnull NSIndexPath *)indexPath
 {
-    if (indexPath.section == directChatsIndex)
+    if (indexPath.section == securityIndex)
+    {
+        if (self.encryptionTrustLevel == UserEncryptionTrustLevelNormal)
+        {
+            [self startUserVerification];
+        }
+        else
+        {
+            [self presentUserVerification];
+        }
+    }
+    else if (indexPath.section == directChatsIndex)
    {
        if (indexPath.row < directChatsArray.count)
        {
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES">
    <device id="retina4_7" orientation="portrait">
        <adaptation id="fullscreen"/>
    </device>
    <dependencies>
        <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
-        <capability name="Aspect ratio constraints" minToolsVersion="5.1"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
    <objects>
@@ -15,6 +14,7 @@
                <outlet property="bottomImageView" destination="7Dc-jk-9sT" id="BVN-bt-VXI"/>
                <outlet property="memberHeaderView" destination="YXr-As-Mqh" id="Eqb-qr-iAo"/>
                <outlet property="memberThumbnail" destination="GQ1-rP-ckr" id="abr-hr-C3p"/>
+                <outlet property="roomMemberAvatarBadgeImageView" destination="jHh-A3-In3" id="LKN-mv-WFg"/>
                <outlet property="roomMemberAvatarHeaderBackground" destination="ouj-VM-zdT" id="YeD-zt-8y5"/>
                <outlet property="roomMemberAvatarHeaderBackgroundHeightConstraint" destination="dBL-G6-Yec" id="QXZ-ZP-0Rn"/>
                <outlet property="roomMemberAvatarMask" destination="MAS-3M-3cg" id="nLI-7d-5Hu"/>
@@ -45,7 +45,7 @@
                            <rect key="frame" x="137.5" y="0.0" width="100" height="125"/>
                            <subviews>
                                <view clipsSubviews="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="GQ1-rP-ckr" customClass="MXKImageView">
-                                    <rect key="frame" x="7.5" y="31" width="84" height="84"/>
+                                    <rect key="frame" x="8" y="31" width="84" height="84"/>
                                    <color key="backgroundColor" red="0.6886889638" green="1" blue="0.74383144840000004" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                    <accessibility key="accessibilityConfiguration" identifier="MemberAvatar"/>
                                    <constraints>
@@ -53,11 +53,21 @@
                                        <constraint firstAttribute="width" secondItem="GQ1-rP-ckr" secondAttribute="height" multiplier="1:1" id="a1T-Y0-Iic"/>
                                    </constraints>
                                </view>
+                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="jHh-A3-In3">
+                                    <rect key="frame" x="68" y="91" width="24" height="24"/>
+                                    <constraints>
+                                        <constraint firstAttribute="width" secondItem="jHh-A3-In3" secondAttribute="height" multiplier="1:1" id="fvP-Hk-apc"/>
+                                        <constraint firstAttribute="width" constant="24" id="gBW-ym-4Qv"/>
+                                    </constraints>
+                                </imageView>
                            </subviews>
                            <color key="backgroundColor" red="0.0" green="0.0" blue="0.0" alpha="0.0" colorSpace="custom" customColorSpace="sRGB"/>
                            <accessibility key="accessibilityConfiguration" identifier="RoomMemberDetailsVCAvatarMask"/>
                            <constraints>
                                <constraint firstAttribute="bottom" secondItem="GQ1-rP-ckr" secondAttribute="bottom" constant="10" id="3pC-So-WvO"/>
+                                <constraint firstItem="jHh-A3-In3" firstAttribute="bottom" secondItem="GQ1-rP-ckr" secondAttribute="bottom" id="6Gg-lp-pJw"/>
+                                <constraint firstItem="jHh-A3-In3" firstAttribute="trailing" secondItem="GQ1-rP-ckr" secondAttribute="trailing" id="TbA-vY-3Ef"/>
+                                <constraint firstItem="jHh-A3-In3" firstAttribute="width" secondItem="jHh-A3-In3" secondAttribute="height" multiplier="1:1" id="Ua2-xg-Vd2"/>
                                <constraint firstItem="GQ1-rP-ckr" firstAttribute="centerX" secondItem="MAS-3M-3cg" secondAttribute="centerX" id="ZGI-nR-gGx"/>
                                <constraint firstAttribute="width" constant="100" id="fwv-qE-IV1"/>
                            </constraints>