Check "phonebook-search" capability.

Signed-off-by: Ivan Sein <ivan@nextcloud.com>

NextcloudTalk/NCSettingsController.h

@@ -53,6 +53,7 @@ extern NSString * const kCapabilityChatReadMarker;
 extern NSString * const kCapabilityStartCallFlag;
 extern NSString * const kCapabilityCirclesSupport;
 extern NSString * const kCapabilityChatReferenceId;
+extern NSString * const kCapabilityPhonebookSearch;
 
 extern NSInteger const kDefaultChatMaxLength;
 extern NSString * const kMinimumRequiredTalkCapability;

NextcloudTalk/NCSettingsController.m

@@ -77,6 +77,7 @@ NSString * const kCapabilityChatReadMarker          = @"chat-read-marker";
 NSString * const kCapabilityStartCallFlag           = @"start-call-flag";
 NSString * const kCapabilityCirclesSupport          = @"circles-support";
 NSString * const kCapabilityChatReferenceId         = @"chat-reference-id";
+NSString * const kCapabilityPhonebookSearch         = @"phonebook-search";
 
 NSInteger const kDefaultChatMaxLength           = 1000;
 NSString * const kMinimumRequiredTalkCapability = kCapabilitySystemMessages; // Talk 4.0 is the minimum required version

NextcloudTalk/NewRoomTableViewController.m

@@ -160,7 +160,7 @@ NSString * const NCSelectedContactForChatNotification = @"NCSelectedContactForCh
     self.navigationController.navigationBar.topItem.leftBarButtonItem = cancelButton;
     self.navigationController.navigationBar.topItem.leftBarButtonItem.accessibilityHint = NSLocalizedString(@"Cancel conversation creation", nil);
     
-    if ([[NCSettingsController sharedInstance] isContactSyncEnabled]) {
+    if ([[NCSettingsController sharedInstance] isContactSyncEnabled] && [[NCSettingsController sharedInstance] serverHasTalkCapability:kCapabilityPhonebookSearch]) {
         UIBarButtonItem *moreOptionButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"more-action"]
                                                                              style:UIBarButtonItemStylePlain
                                                                             target:self
@@ -189,8 +189,11 @@ NSString * const NCSelectedContactForChatNotification = @"NCSelectedContactForCh
         self.navigationItem.hidesSearchBarWhenScrolling = NO;
     }
     
-    [[NCContactsManager sharedInstance] searchInServerForAddressBookContacts:NO];
-    [self getAddressBookContacts];
+    if ([[NCSettingsController sharedInstance] isContactSyncEnabled] && [[NCSettingsController sharedInstance] serverHasTalkCapability:kCapabilityPhonebookSearch]) {
+        [[NCContactsManager sharedInstance] searchInServerForAddressBookContacts:NO];
+        [self getAddressBookContacts];
+    }
+    
     [self getServerContacts];
 }
 

NextcloudTalk/SettingsViewController.m

@@ -180,7 +180,9 @@ typedef enum AboutSection {
         [options addObject:[NSNumber numberWithInt:kConfigurationSectionOptionBrowser]];
     }
     // Contacts sync
-    [options addObject:[NSNumber numberWithInt:kConfigurationSectionOptionContactsSync]];
+    if ([[NCSettingsController sharedInstance] serverHasTalkCapability:kCapabilityPhonebookSearch]) {
+        [options addObject:[NSNumber numberWithInt:kConfigurationSectionOptionContactsSync]];
+    }
     
     return [NSArray arrayWithArray:options];
 }