contacts reminder in compose view

// FREEBIE

Signal/src/ViewControllers/MessageComposeTableViewController.m

@@ -34,6 +34,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) OWSTableViewController *tableViewController;
 
 @property (nonatomic, readonly) UISearchBar *searchBar;
+@property (nonatomic, readonly) NSLayoutConstraint *hideContactsPermissionReminderViewConstraint;
 
 // A list of possible phone numbers parsed from the search text as
 // E164 values.
@@ -59,6 +60,18 @@ NS_ASSUME_NONNULL_BEGIN
     _contactsViewHelper.delegate = self;
     _nonContactAccountSet = [NSMutableSet set];
 
+    ReminderView *contactsPermissionReminderView = [[ReminderView alloc]
+        initWithText:NSLocalizedString(@"COMPOSE_SCREEN_MISSING_CONTACTS_PERMISSION",
+                         @"Multiline label explaining why compose-screen contact picker is empty.")
+           tapAction:^{
+               [[UIApplication sharedApplication] openSystemSettings];
+           }];
+    [self.view addSubview:contactsPermissionReminderView];
+    [contactsPermissionReminderView autoPinWidthToSuperview];
+    [contactsPermissionReminderView autoPinEdgeToSuperviewMargin:ALEdgeTop];
+    _hideContactsPermissionReminderViewConstraint =
+        [contactsPermissionReminderView autoSetDimension:ALDimensionHeight toSize:0];
+
     self.navigationItem.leftBarButtonItem =
         [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemStop
                                                       target:self
@@ -87,7 +100,8 @@ NS_ASSUME_NONNULL_BEGIN
     _tableViewController.tableViewStyle = UITableViewStylePlain;
     [self.view addSubview:self.tableViewController.view];
     [_tableViewController.view autoPinWidthToSuperview];
-    [_tableViewController.view autoPinEdgeToSuperviewEdge:ALEdgeTop];
+
+    [_tableViewController.view autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:contactsPermissionReminderView];
     [_tableViewController.view autoPinToBottomLayoutGuideOfViewController:self withInset:0];
     _tableViewController.tableView.tableHeaderView = searchBar;
 
@@ -101,6 +115,11 @@ NS_ASSUME_NONNULL_BEGIN
     [self updateTableContents];
 }
 
+- (void)showContactsPermissionReminder:(BOOL)flag
+{
+    _hideContactsPermissionReminderViewConstraint.active = !flag;
+}
+
 - (UIView *)createNoSignalContactsView
 {
     UIView *view = [UIView new];
@@ -357,6 +376,7 @@ NS_ASSUME_NONNULL_BEGIN
     if (!hasSearchText && helper.signalAccounts.count < 1) {
         // No Contacts
 
+        if (self.contactsViewHelper.contactsManager.isSystemContactsAuthorized) {
             [section addItem:[OWSTableItem itemWithCustomCellBlock:^{
                 UITableViewCell *cell = [UITableViewCell new];
                 cell.textLabel.text = NSLocalizedString(
@@ -370,6 +390,7 @@ NS_ASSUME_NONNULL_BEGIN
                                                    customRowHeight:kActionCellHeight
                                                        actionBlock:nil]];
         }
+    }
 
     if (hasSearchText && !hasSearchResults) {
         // No Search Results
@@ -420,12 +441,15 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)showNoContactsModeIfNecessary
 {
-    if (!self.contactsViewHelper.contactsManager.isSystemContactsAuthorized) {
+    if (self.contactsViewHelper.contactsManager.isSystemContactsAuthorized) {
-        return;
-    }
-    
         BOOL hasNoContacts = self.contactsViewHelper.signalAccounts.count < 1;
         self.isNoContactsModeActive = (hasNoContacts && ![[Environment preferences] hasDeclinedNoContactsView]);
+        [self showContactsPermissionReminder:NO];
+    } else {
+        // don't show "no signal contacts", show "no contact access"
+        self.isNoContactsModeActive = NO;
+        [self showContactsPermissionReminder:YES];
+    }
 }
 
 - (void)setIsNoContactsModeActive:(BOOL)isNoContactsModeActive

Signal/src/ViewControllers/SignalsViewController.m

@@ -168,7 +168,8 @@ NSString *const SignalsViewControllerSegueShowIncomingCall = @"ShowIncomingCallS
         @"SETTINGS_BUTTON_ACCESSIBILITY", @"Accessibility hint for the settings button");
 
 
-    self.missingContactsPermissionView.text = NSLocalizedString(@"INBOX_VIEW_MISSING_CONTACTS_PERMISSION", @"Multi line label explainging how to show names instead of phone numbers in your inbox");
+    self.missingContactsPermissionView.text = NSLocalizedString(@"INBOX_VIEW_MISSING_CONTACTS_PERMISSION",
+        @"Multiline label explaining how to show names instead of phone numbers in your inbox");
     self.missingContactsPermissionView.tapAction = ^{
         [[UIApplication sharedApplication] openSystemSettings];
     };

Signal/src/views/ReminderView.swift

@@ -41,8 +41,9 @@ class ReminderView: UIView {
         setupSubviews()
     }
 
-    convenience init(tapAction: @escaping () -> Void) {
+    convenience init(text: String, tapAction: @escaping () -> Void) {
         self.init(frame: .zero)
+        self.text = text
         self.tapAction = tapAction
     }
 

Signal/translations/en.lproj/Localizable.strings

@@ -217,6 +217,9 @@
 /* Activity Sheet label */
 "COMPARE_SAFETY_NUMBER_ACTION" = "Compare with Clipboard";
 
+/* Multiline label explaining why compose-screen contact picker is empty. */
+"COMPOSE_SCREEN_MISSING_CONTACTS_PERMISSION" = "To see which of your contacts are Signal users, enable contacts access in your system settings.";
+
 /* No comment provided by engineer. */
 "CONFIRM_ACCOUNT_DESTRUCTION_TEXT" = "This will reset the application by deleting your messages and unregister you with the server. The app will close after deletion of data.";
 
@@ -562,7 +565,7 @@
 /* Call setup status label */
 "IN_CALL_TERMINATED" = "Call Ended.";
 
-/* Multi line label explainging how to show names instead of phone numbers in your inbox */
+/* Multiline label explaining how to show names instead of phone numbers in your inbox */
 "INBOX_VIEW_MISSING_CONTACTS_PERMISSION" = "To see the names of your contacts, update your sytem settings to allow contact access.";
 
 /* notification body */