Improve shared item list

NextcloudTalk/BaseChatViewController.swift

@@ -202,7 +202,9 @@ import QuickLook
         NCUserInterfaceController.sharedInstance().numberOfAllocatedChatViewControllers += 1
     }
 
-    public convenience init?(for room: NCRoom, withMessage messages: [NCChatMessage]) {
+    // Not using an optional here, because it is not available from ObjC
+    // Pass "0" as highlightMessageId to not highlight a message
+    public convenience init?(for room: NCRoom, withMessage messages: [NCChatMessage], withHighlightId highlightMessageId: Int) {
         self.init(for: room)
 
         // When we pass in a fixed number of messages, we hide the inputbar by default
@@ -213,18 +215,12 @@ import QuickLook
         self.tableView?.slk_scrollToBottom(animated: false)
 
         self.appendMessages(messages: messages)
-        self.tableView?.reloadData()
-    }
-
-    // Not using an optional here, because it is not available from ObjC
-    public convenience init?(for room: NCRoom, withMessage messages: [NCChatMessage], withHighlightId highlightMessageId: Int) {
-        self.init(for: room, withMessage: messages)
 
-        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
-            if let (indexPath, _) = self.indexPathAndMessage(forMessageId: highlightMessageId) {
-                self.highlightMessage(at: indexPath, with: .middle)
-            }
-        }
+        self.tableView?.performBatchUpdates({
+            self.tableView?.reloadData()
+        }, completion: { _ in
+            self.highlightMessageWithContentOffset(messageId: highlightMessageId)
+        })
     }
 
     required init?(coder decoder: NSCoder) {
@@ -2550,15 +2546,21 @@ import QuickLook
         }
 
         if let message = self.message(for: indexPath) {
-            var width = tableView.frame.width - kChatCellAvatarHeight
-            width -= tableView.safeAreaInsets.left + tableView.safeAreaInsets.right
-
-            return self.getCellHeight(for: message, with: width)
+            return self.getCellHeight(for: message)
         }
 
         return kChatMessageCellMinimumHeight
     }
 
+    func getCellHeight(for message: NCChatMessage) -> CGFloat {
+        guard let tableView = self.tableView else { return kChatMessageCellMinimumHeight }
+
+        var width = tableView.frame.width - kChatCellAvatarHeight
+        width -= tableView.safeAreaInsets.left + tableView.safeAreaInsets.right
+
+        return self.getCellHeight(for: message, with: width)
+    }
+
     // swiftlint:disable:next cyclomatic_complexity
     func getCellHeight(for message: NCChatMessage, with originalWidth: CGFloat) -> CGFloat {
         // Chat separators
@@ -3006,6 +3008,33 @@ import QuickLook
         }
     }
 
+    internal func highlightMessageWithContentOffset(messageId: Int) {
+        guard messageId > 0,
+              let tableView = self.tableView,
+              let (indexPath, _) = self.indexPathAndMessage(forMessageId: messageId)
+        else { return }
+
+        self.highlightMessage(at: indexPath, with: .none)
+
+        let rect = tableView.rectForRow(at: indexPath)
+
+        // ContentOffset when the cell is at the top of the tableView
+        let contentOffsetTop = rect.origin.y - tableView.safeAreaInsets.top
+
+        // ContentOffset when the cell is at the middle of the tableView
+        let contentOffsetMiddle = contentOffsetTop - tableView.frame.height / 2 + rect.height / 2
+
+        // Fallback to the top offset in case the top of the cell would be scrolled outside of the view
+        let newContentOffset = min(contentOffsetTop, contentOffsetMiddle)
+
+        tableView.contentOffset.y = newContentOffset
+    }
+
+    public func reloadDataAndHighlightMessage(messageId: Int) {
+        self.tableView?.reloadData()
+        self.highlightMessageWithContentOffset(messageId: messageId)
+    }
+
     func showNewMessagesView(until message: NCChatMessage) {
         self.firstUnreadMessage = message
         self.unreadMessageButton.isHidden = false

NextcloudTalk/NCAPIController.h

@@ -72,6 +72,7 @@ typedef void (^DeleteChatMessageCompletionBlock)(NSDictionary *messageDict, NSEr
 typedef void (^ClearChatHistoryCompletionBlock)(NSDictionary *messageDict, NSError *error, NSInteger statusCode);
 typedef void (^GetSharedItemsOverviewCompletionBlock)(NSDictionary *sharedItemsOverview, NSError *error, NSInteger statusCode);
 typedef void (^GetSharedItemsCompletionBlock)(NSArray *sharedItems, NSInteger lastKnownMessage, NSError *error, NSInteger statusCode);
+typedef void (^GetMessageContextInRoomCompletionBlock)(NSArray *messages, NSError *error, NSInteger statusCode);
 
 typedef void (^GetTranslationsCompletionBlock)(NSArray *languages, BOOL languageDetection, NSError *error, NSInteger statusCode);
 typedef void (^MessageTranslationCompletionBlock)(NSDictionary *translationDict, NSError *error, NSInteger statusCode);
@@ -224,6 +225,7 @@ extern NSInteger const kReceivedChatMessagesLimit;
 - (NSURLSessionDataTask *)markChatAsUnreadInRoom:(NSString *)token forAccount:(TalkAccount *)account withCompletionBlock:(SendChatMessagesCompletionBlock)block;
 - (NSURLSessionDataTask *)getSharedItemsOverviewInRoom:(NSString *)token withLimit:(NSInteger)limit forAccount:(TalkAccount *)account withCompletionBlock:(GetSharedItemsOverviewCompletionBlock)block;
 - (NSURLSessionDataTask *)getSharedItemsOfType:(NSString *)objectType fromLastMessageId:(NSInteger)messageId withLimit:(NSInteger)limit inRoom:(NSString *)token forAccount:(TalkAccount *)account withCompletionBlock:(GetSharedItemsCompletionBlock)block;
+- (NSURLSessionDataTask *)getMessageContextInRoom:(NSString *)token forMessageId:(NSInteger)messageId withLimit:(NSInteger)limit forAccount:(TalkAccount *)account withCompletionBlock:(GetMessageContextInRoomCompletionBlock)block;
 
 // Translations
 - (NSURLSessionDataTask *)getAvailableTranslationsForAccount:(TalkAccount *)account withCompletionBlock:(GetTranslationsCompletionBlock)block;

NextcloudTalk/NCAPIController.m

@@ -1587,6 +1587,7 @@ - (NSURLSessionDataTask *)getSharedItemsOverviewInRoom:(NSString *)token withLim
 
     return task;
 }
+
 - (NSURLSessionDataTask *)getSharedItemsOfType:(NSString *)objectType fromLastMessageId:(NSInteger)messageId withLimit:(NSInteger)limit inRoom:(NSString *)token forAccount:(TalkAccount *)account withCompletionBlock:(GetSharedItemsCompletionBlock)block
 {
     NSString *encodedToken = [token stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]];
@@ -1637,6 +1638,39 @@ - (NSURLSessionDataTask *)getSharedItemsOfType:(NSString *)objectType fromLastMe
     return task;
 }
 
+- (NSURLSessionDataTask *)getMessageContextInRoom:(NSString *)token forMessageId:(NSInteger)messageId withLimit:(NSInteger)limit forAccount:(TalkAccount *)account withCompletionBlock:(GetMessageContextInRoomCompletionBlock)block
+{
+    NSString *encodedToken = [token stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]];
+    NSString *endpoint = [NSString stringWithFormat:@"chat/%@/%ld/context", encodedToken, (long)messageId];
+    NSInteger chatAPIVersion = [self chatAPIVersionForAccount:account];
+    NSString *URLString = [self getRequestURLForEndpoint:endpoint withAPIVersion:chatAPIVersion forAccount:account];
+
+    NSMutableDictionary *parameters = [[NSMutableDictionary alloc] init];
+
+    if (limit && limit > 0) {
+        // Limit is optional server-side and defaults to 50, maximum is 100
+        [parameters setObject:@(limit) forKey:@"limit"];
+    }
+
+    NCAPISessionManager *apiSessionManager = [_apiSessionManagers objectForKey:account.accountId];
+
+    NSURLSessionDataTask *task = [apiSessionManager GET:URLString parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
+        NSArray *responseMessages = [[responseObject objectForKey:@"ocs"] objectForKey:@"data"];
+
+        if (block) {
+            block(responseMessages, nil, 0);
+        }
+    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
+        NSInteger statusCode = [self getResponseStatusCode:task.response];
+        [self checkResponseStatusCode:statusCode forAccount:account];
+        if (block) {
+            block(nil, error, statusCode);
+        }
+    }];
+
+    return task;
+}
+
 #pragma mark - Translations Controller
 
 - (NSURLSessionDataTask *)getAvailableTranslationsForAccount:(TalkAccount *)account withCompletionBlock:(GetTranslationsCompletionBlock)block

NextcloudTalk/NCChatController.h

@@ -26,6 +26,7 @@
 #import "NCChatMessage.h"
 
 typedef void (^UpdateHistoryInBackgroundCompletionBlock)(NSError *error);
+typedef void (^GetMessagesContextCompletionBlock)(NSArray<NCChatMessage *> * _Nullable messages);
 
 @class NCRoom;
 
@@ -65,5 +66,6 @@ extern NSString * const NCChatControllerDidReceiveMessagesInBackgroundNotificati
 - (void)removeExpiredMessages;
 - (BOOL)hasHistoryFromMessageId:(NSInteger)messageId;
 - (void)storeMessages:(NSArray *)messages withRealm:(RLMRealm *)realm;
+- (void)getMessageContextForMessageId:(NSInteger)messageId withLimit:(NSInteger)limit withCompletionBlock:(GetMessagesContextCompletionBlock)block;
 
 @end

NextcloudTalk/NCChatController.m

@@ -814,4 +814,39 @@ - (BOOL)hasHistoryFromMessageId:(NSInteger)messageId
     return YES;
 }
 
+- (void)getMessageContextForMessageId:(NSInteger)messageId withLimit:(NSInteger)limit withCompletionBlock:(GetMessagesContextCompletionBlock)block
+{
+    [[NCAPIController sharedInstance] getMessageContextInRoom:self.room.token forMessageId:messageId withLimit:limit forAccount:self.account withCompletionBlock:^(NSArray *messages, NSError *error, NSInteger statusCode) {
+        if (error) {
+            if (block) {
+                block(nil);
+            }
+
+            return;
+        }
+
+        NSMutableArray *chatMessages = [[NSMutableArray alloc] initWithCapacity:messages.count];
+
+        for (NSDictionary *messageDict in messages) {
+            NCChatMessage *message = [NCChatMessage messageWithDictionary:messageDict andAccountId:self.account.accountId];
+            [chatMessages addObject:message];
+
+            if (!message.file) {
+                continue;
+            }
+
+            // Try to get the stored preview height from our database, when the message is already stored
+            NCChatMessage *managedMessage = [NCChatMessage objectsWhere:@"internalId = %@", message.internalId].firstObject;
+
+            if (managedMessage && managedMessage.file && managedMessage.file.previewImageHeight > 0) {
+                message.file.previewImageHeight = managedMessage.file.previewImageHeight;
+            }
+        }
+
+        if (block) {
+            block(chatMessages);
+        }
+    }];
+}
+
 @end

NextcloudTalk/RoomSharedItemsTableViewController.swift

@@ -73,30 +73,6 @@ import QuickLook
         self.getItemsOverview()
     }
 
-    func presentItemTypeSelector() {
-        let itemTypesActionSheet = UIAlertController(title: NSLocalizedString("Shared items", comment: ""), message: nil, preferredStyle: .actionSheet)
-
-        for itemType in availableItemTypes() {
-            let itemTypeName = nameForItemType(itemType: itemType)
-            let action = UIAlertAction(title: itemTypeName, style: .default) { _ in
-                self.setupViewForItemType(itemType: itemType)
-            }
-
-            if itemType == currentItemType {
-                action.setValue(UIImage(named: "checkmark")?.withRenderingMode(_: .alwaysOriginal), forKey: "image")
-            }
-            itemTypesActionSheet.addAction(action)
-        }
-
-        itemTypesActionSheet.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel, handler: nil))
-
-        // Presentation on iPads
-        itemTypesActionSheet.popoverPresentationController?.sourceView = self.navigationItem.titleView
-        itemTypesActionSheet.popoverPresentationController?.sourceRect = self.navigationItem.titleView?.frame ?? CGRect()
-
-        self.present(itemTypesActionSheet, animated: true, completion: nil)
-    }
-
     func availableItemTypes() -> [String] {
         var availableItemTypes: [String] = []
         for itemType in sharedItemsOverview.keys {
@@ -183,8 +159,25 @@ import QuickLook
         itemTypeSelectorButton.setTitle(buttonTitle, for: .normal)
         itemTypeSelectorButton.titleLabel?.font = UIFont.systemFont(ofSize: 17, weight: .medium)
         itemTypeSelectorButton.setTitleColor(NCAppBranding.themeTextColor(), for: .normal)
-        itemTypeSelectorButton.addTarget(self, action: #selector(presentItemTypeSelector), for: .touchUpInside)
         self.navigationItem.titleView = itemTypeSelectorButton
+
+        var menuActions: [UIAction] = []
+
+        for itemType in availableItemTypes() {
+            let itemTypeName = nameForItemType(itemType: itemType)
+            let action = UIAction(title: itemTypeName, image: nil) { [unowned self] _ in
+                self.setupViewForItemType(itemType: itemType)
+            }
+
+            if itemType == currentItemType {
+                action.state = .on
+            }
+
+            menuActions.append(action)
+        }
+
+        itemTypeSelectorButton.showsMenuAsPrimaryAction = true
+        itemTypeSelectorButton.menu = UIMenu(children: menuActions)
     }
 
     func showFetchingItemsPlaceholderView() {
@@ -383,7 +376,12 @@ import QuickLook
 
         let message = currentItems[indexPath.row]
 
-        cell.fileNameLabel?.text = message.parsedMessage().string
+        if let file = message.file() {
+            cell.fileNameLabel?.text = file.name
+        } else {
+            cell.fileNameLabel?.text = message.parsedMessage().string
+        }
+
         var infoLabelText = NCUtils.relativeTimeFromDate(date: Date(timeIntervalSince1970: Double(message.timestamp)))
         if !message.actorDisplayName.isEmpty {
             infoLabelText += " ⸱ " + message.actorDisplayName
@@ -409,6 +407,40 @@ import QuickLook
         return cell
     }
 
+    weak var previewChatViewController: BaseChatViewController?
+
+    override func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
+        return UIContextMenuConfiguration(identifier: indexPath as NSCopying, previewProvider: {
+
+            // Init the BaseChatViewController without message to directly show a preview
+            if let chatViewController = BaseChatViewController(for: self.room, withMessage: [], withHighlightId: 0) {
+                self.previewChatViewController = chatViewController
+
+                // Fetch the context of the message and update the BaseChatViewController
+                let message = self.currentItems[indexPath.row]
+                NCChatController(for: self.room).getMessageContext(forMessageId: message.messageId, withLimit: 50) { messages in
+                    guard let messages else { return }
+
+                    chatViewController.appendMessages(messages: messages)
+                    chatViewController.reloadDataAndHighlightMessage(messageId: message.messageId)
+                }
+
+                let navController = NCNavigationController(rootViewController: chatViewController)
+                return navController
+            }
+
+            return nil
+        }, actionProvider: nil)
+    }
+
+    override func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
+        animator.addAnimations {
+            if let previewChatViewController = self.previewChatViewController {
+                self.navigationController?.pushViewController(previewChatViewController, animated: false)
+            }
+        }
+    }
+
     override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
         let cell = tableView.cellForRow(at: indexPath) as? DirectoryTableViewCell ?? DirectoryTableViewCell()
         let message = currentItems[indexPath.row]

NextcloudTalk/RoomSharedItemsTableViewController.xib

@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="20037" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="22155" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
     <device id="retina6_1" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="20020"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22131"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
@@ -15,21 +14,15 @@
             </connections>
         </placeholder>
         <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
-        <tableView opaque="NO" clipsSubviews="YES" clearsContextBeforeDrawing="NO" contentMode="scaleToFill" bouncesZoom="NO" style="plain" separatorStyle="default" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" id="i5M-Pr-FkT">
+        <tableView opaque="NO" clipsSubviews="YES" clearsContextBeforeDrawing="NO" contentMode="scaleToFill" bouncesZoom="NO" style="insetGrouped" separatorStyle="default" rowHeight="44" sectionHeaderHeight="18" sectionFooterHeight="18" id="i5M-Pr-FkT">
             <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
             <viewLayoutGuide key="safeArea" id="vLr-E1-eTs"/>
-            <color key="backgroundColor" systemColor="systemBackgroundColor"/>
             <connections>
                 <outlet property="dataSource" destination="-1" id="Tng-2m-Rnh"/>
                 <outlet property="delegate" destination="-1" id="9aC-8N-iBw"/>
             </connections>
             <point key="canvasLocation" x="139" y="98"/>
         </tableView>
     </objects>
-    <resources>
-        <systemColor name="systemBackgroundColor">
-            <color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-        </systemColor>
-    </resources>
 </document>