Allow taps in albums with failed images.

Signal/src/ViewControllers/ColorPickerViewController.swift

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 import Foundation
@@ -434,11 +434,6 @@ private class MockConversationViewItem: NSObject, ConversationViewItem {
         owsFailDebug("unexpected invocation")
         return nil
     }
-
-    func mediaAlbumHasFailedAttachment() -> Bool {
-        owsFailDebug("unexpected invocation")
-        return false
-    }
 }
 
 private class MockIncomingMessage: TSIncomingMessage {

Signal/src/ViewControllers/ConversationView/Cells/OWSMessageBubbleView.m

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import "OWSMessageBubbleView.h"
@@ -1376,10 +1376,6 @@ const UIDataDetectorTypes kOWSAllowedDataDetectorTypes
             OWSAssertDebug(self.bodyMediaView);
             OWSAssertDebug(self.viewItem.mediaAlbumItems.count > 0);
 
-            if (self.viewItem.mediaAlbumHasFailedAttachment) {
-                [self.delegate didTapFailedIncomingAttachment:self.viewItem];
-                return;
-            }
             if (![self.bodyMediaView isKindOfClass:[OWSMediaAlbumCellView class]]) {
                 OWSFailDebug(@"Unexpected body media view: %@", self.bodyMediaView.class);
                 return;
@@ -1394,6 +1390,14 @@ const UIDataDetectorTypes kOWSAllowedDataDetectorTypes
 
             TSAttachment *attachment = mediaView.attachment;
             if (![attachment isKindOfClass:[TSAttachmentStream class]]) {
+                if ([attachment isKindOfClass:[TSAttachmentPointer class]]) {
+                    TSAttachmentPointer *attachmentPointer = (TSAttachmentPointer *)attachment;
+                    if (attachmentPointer.state == TSAttachmentPointerStateFailed) {
+                        [self.delegate didTapFailedIncomingAttachment:self.viewItem];
+                        return;
+                    }
+                }
+
                 OWSLogWarn(@"Media attachment not yet downloaded.");
                 return;
             }

Signal/src/ViewControllers/ConversationView/ConversationViewItem.h

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import "ConversationViewLayout.h"
@@ -144,8 +144,6 @@ NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType);
 
 - (nullable TSAttachmentStream *)firstValidAlbumAttachment;
 
-- (BOOL)mediaAlbumHasFailedAttachment;
-
 @end
 
 #pragma mark -

Signal/src/ViewControllers/ConversationView/ConversationViewItem.m

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import "ConversationViewItem.h"
@@ -1074,22 +1074,6 @@ NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType)
     }
 }
 
-- (BOOL)mediaAlbumHasFailedAttachment
-{
-    OWSAssertDebug(self.messageCellType == OWSMessageCellType_MediaAlbum);
-    OWSAssertDebug(self.mediaAlbumItems.count > 0);
-
-    for (ConversationMediaAlbumItem *mediaAlbumItem in self.mediaAlbumItems) {
-        if ([mediaAlbumItem.attachment isKindOfClass:[TSAttachmentPointer class]]) {
-            TSAttachmentPointer *attachmentPointer = (TSAttachmentPointer *)mediaAlbumItem.attachment;
-            if (attachmentPointer.state == TSAttachmentPointerStateFailed) {
-                return YES;
-            }
-        }
-    }
-    return NO;
-}
-
 @end
 
 NS_ASSUME_NONNULL_END