Show disappearing messages timer in share extension

// FREEBIE

SignalMessaging/Views/ContactTableViewCell.m

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2017 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
 //
 
 #import "ContactTableViewCell.h"
@@ -182,6 +182,17 @@ const CGFloat kContactTableViewCellAvatarTextMargin = 12;
                                                          diameter:kContactTableViewCellAvatarSize
                                                   contactsManager:contactsManager];
 
+    if (self.accessoryMessage) {
+        UILabel *blockedLabel = [[UILabel alloc] init];
+        blockedLabel.textAlignment = NSTextAlignmentRight;
+        blockedLabel.text = self.accessoryMessage;
+        blockedLabel.font = [UIFont ows_mediumFontWithSize:13.f];
+        blockedLabel.textColor = [UIColor colorWithWhite:0.5f alpha:1.f];
+        [blockedLabel sizeToFit];
+        
+        self.accessoryView = blockedLabel;
+    }
+    
     // Force layout, since imageView isn't being initally rendered on App Store optimized build.
     [self layoutSubviews];
 }

SignalMessaging/contacts/SelectThreadViewController.m

@@ -21,6 +21,7 @@
 #import <SignalServiceKit/TSAccountManager.h>
 #import <SignalServiceKit/TSContactThread.h>
 #import <SignalServiceKit/TSThread.h>
+#import <YapDatabase/YapDatabase.h>
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -33,6 +34,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) ContactsViewHelper *contactsViewHelper;
 @property (nonatomic, readonly) ConversationSearcher *conversationSearcher;
 @property (nonatomic, readonly) ThreadViewHelper *threadViewHelper;
+@property (nonatomic, readonly) YapDatabaseConnection *uiDatabaseConnection;
 
 @property (nonatomic, readonly) OWSTableViewController *tableViewController;
 
@@ -60,6 +62,18 @@ NS_ASSUME_NONNULL_BEGIN
     _threadViewHelper = [ThreadViewHelper new];
     _threadViewHelper.delegate = self;
 
+    _uiDatabaseConnection = [[TSStorageManager sharedManager] newDatabaseConnection];
+    _uiDatabaseConnection.permittedTransactions = YDB_AnyReadTransaction;
+    [_uiDatabaseConnection beginLongLivedReadTransaction];
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(yapDatabaseModified:)
+                                                 name:YapDatabaseModifiedNotification
+                                               object:TSStorageManager.sharedManager.dbNotificationObject];
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(yapDatabaseModifiedExternally:)
+                                                 name:YapDatabaseModifiedExternallyNotification
+                                               object:nil];
+
     [self createViews];
 
     [self updateTableContents];
@@ -104,6 +118,24 @@ NS_ASSUME_NONNULL_BEGIN
     [self autoPinViewToBottomGuideOrKeyboard:self.tableViewController.view];
 }
 
+- (void)yapDatabaseModifiedExternally:(NSNotification *)notification
+{
+    OWSAssertIsOnMainThread();
+    
+    DDLogVerbose(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
+    
+    [self.uiDatabaseConnection beginLongLivedReadTransaction];
+    [self updateTableContents];
+}
+
+- (void)yapDatabaseModified:(NSNotification *)notification
+{
+    OWSAssertIsOnMainThread();
+    
+    [self.uiDatabaseConnection beginLongLivedReadTransaction];
+    [self updateTableContents];
+}
+
 #pragma mark - UISearchBarDelegate
 
 - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
@@ -165,7 +197,40 @@ NS_ASSUME_NONNULL_BEGIN
             // To be consistent with the threads (above), we use ContactTableViewCell
             // instead of InboxTableViewCell to present contacts and threads.
             ContactTableViewCell *cell = [ContactTableViewCell new];
+            
+            if ([thread isKindOfClass:[TSContactThread class]]) {
+                BOOL isBlocked = [helper isRecipientIdBlocked:thread.contactIdentifier];
+                if (isBlocked) {
+                    cell.accessoryMessage = NSLocalizedString(@"CONTACT_CELL_IS_BLOCKED", @"An indicator that a contact has been blocked.");
+                }
+            }
+            
             [cell configureWithThread:thread contactsManager:helper.contactsManager];
+
+            if (cell.accessoryView == nil) {
+                // Don't add a disappearing messages indicator if we've already added a "blocked" label.
+                __block OWSDisappearingMessagesConfiguration *disappearingMessagesConfiguration;
+                [self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *_Nonnull transaction) {
+                    disappearingMessagesConfiguration =
+                        [OWSDisappearingMessagesConfiguration fetchObjectWithUniqueID:thread.uniqueId
+                                                                          transaction:transaction];
+                }];
+
+                if (disappearingMessagesConfiguration && disappearingMessagesConfiguration.isEnabled) {
+                    UIImage *icon = [UIImage imageNamed:@"table_ic_hourglass"];
+                    OWSAssert(icon);
+                    UIImageView *iconView = [UIImageView new];
+                    iconView.image = [icon imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
+                    iconView.tintColor = [UIColor colorWithWhite:0.5f alpha:1.f];
+                    iconView.contentMode = UIViewContentModeScaleAspectFit;
+                    // Default size of this icon is a too large for the thread picker context
+                    // so we specify a bit smaller.
+                    iconView.frame = CGRectMake(0, 0, 20, 20);
+
+                    cell.accessoryView = iconView;
+                }
+            }
+
             return cell;
         }
                                         customRowHeight:[ContactTableViewCell rowHeight]