Add NSUserActivity to rooms to appear in spotlight search

Signed-off-by: Finn Behrens <me@kloenk.dev>

Riot/Generated/InfoPlist.swift

@@ -35,6 +35,7 @@ internal enum InfoPlist {
   internal static let nsMicrophoneUsageDescription: String = _document["NSMicrophoneUsageDescription"]
   internal static let nsPhotoLibraryUsageDescription: String = _document["NSPhotoLibraryUsageDescription"]
   internal static let nsSiriUsageDescription: String = _document["NSSiriUsageDescription"]
+  internal static let nsUserActivityTypes: [String] = _document["NSUserActivityTypes"]
   internal static let uiBackgroundModes: [String] = _document["UIBackgroundModes"]
   internal static let uiLaunchStoryboardName: String = _document["UILaunchStoryboardName"]
   internal static let uiRequiredDeviceCapabilities: [String] = _document["UIRequiredDeviceCapabilities"]

Riot/Managers/Activities/UserActivities.h

@@ -0,0 +1,37 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UserActivities_h
+#define UserActivities_h
+
+#import <Foundation/Foundation.h>
+
+/**
+ NSUserActivity types for rooms
+ */
+FOUNDATION_EXPORT NSString *const kUserActivityTypeMatrixRoom;
+
+/**
+ UserInfo field for the room id
+ */
+FOUNDATION_EXPORT NSString *const kUserActivityInfoRoomId;
+
+/**
+ UserInfo field for the user id
+ */
+FOUNDATION_EXPORT NSString *const kUserActivityInfoUserId;
+
+#endif /* UserActivities_h */

Riot/Managers/Activities/UserActivities.m

@@ -0,0 +1,21 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#import "UserActivities.h"
+
+NSString *const kUserActivityTypeMatrixRoom = @"org.matrix.room";
+NSString *const kUserActivityInfoRoomId = @"roomID";
+NSString *const kUserActivityInfoUserId = @"userID";

Riot/Modules/Application/LegacyAppDelegate.m

@@ -58,6 +58,8 @@
 #import "Riot-Swift.h"
 #import "PushNotificationService.h"
 
+#import "UserActivities.h"
+
 //#define MX_CALL_STACK_OPENWEBRTC
 #ifdef MX_CALL_STACK_OPENWEBRTC
 #import <MatrixOpenWebRTCWrapper/MatrixOpenWebRTCWrapper.h>
@@ -748,13 +750,22 @@ - (BOOL)application:(UIApplication *)application continueUserActivity:(NSUserAct
     {
         continueUserActivity = [self handleUniversalLink:userActivity];
     }
+    else if ([userActivity.activityType isEqualToString:kUserActivityTypeMatrixRoom])
+    {
+        NSString *roomID = userActivity.userInfo[kUserActivityInfoRoomId];
+        if (!roomID)
+            return continueUserActivity;
+
+        [self navigateToRoomById:roomID];
+        continueUserActivity = YES;
+    }
     else if ([userActivity.activityType isEqualToString:INStartAudioCallIntentIdentifier] ||
              [userActivity.activityType isEqualToString:INStartVideoCallIntentIdentifier])
     {
         INInteraction *interaction = userActivity.interaction;
 
         // roomID provided by Siri intent
-        NSString *roomID = userActivity.userInfo[@"roomID"];
+        NSString *roomID = userActivity.userInfo[kUserActivityInfoRoomId];
 
         // We've launched from calls history list
         if (!roomID)

Riot/Modules/Room/RoomViewController.m

@@ -16,6 +16,8 @@
  limitations under the License.
  */
 
+@import CoreSpotlight;
+
 #import "RoomViewController.h"
 
 #import "RoomDataSource.h"
@@ -128,6 +130,8 @@
 
 #import "MXSDKOptions.h"
 
+#import "UserActivities.h"
+
 #import "Riot-Swift.h"
 
 NSNotificationName const RoomCallTileTappedNotification = @"RoomCallTileTappedNotification";
@@ -588,6 +592,8 @@ - (void)viewWillAppear:(BOOL)animated
         notificationTaskProfile = [MXSDKOptions.sharedInstance.profiler startMeasuringTaskWithName:AnalyticsNoficationsTimeToDisplayContent
                                                                                           category:AnalyticsNoficationsCategory];
     }
+
+    [self becomeCurrentActivity];
 }
 
 - (void)viewWillDisappear:(BOOL)animated
@@ -1991,6 +1997,50 @@ - (void)setupActions {
     roomInputView.actionsBar.actionItems = actionItems;
 }
 
+- (void)becomeCurrentActivity
+{
+    if (!self.userActivity) {
+        self.userActivity = [[NSUserActivity alloc] initWithActivityType:kUserActivityTypeMatrixRoom];
+    }
+
+    self.userActivity.title = self.roomDataSource.room.summary.displayname;
+    self.userActivity.requiredUserInfoKeys = [[NSSet alloc] initWithObjects:kUserActivityInfoRoomId, nil];
+
+    // user info
+    NSMutableDictionary *userInfo = [[NSMutableDictionary alloc] init];
+    [userInfo setObject:self.roomDataSource.roomId forKey:kUserActivityInfoRoomId];
+    if ([self.roomDataSource.room isDirect]) {
+        [userInfo setObject:self.roomDataSource.room.directUserId forKey:kUserActivityInfoUserId];
+    }
+    self.userActivity.userInfo = userInfo;
+
+    // TODO: add a NSUserActivityDelegate to save the current text in the userinfo of the activity
+    // self.userActivity.delegate = self;
+    // self.userActivity.needsSave = true;
+    self.userActivity.persistentIdentifier = self.roomDataSource.roomId;
+
+    self.userActivity.eligibleForHandoff = true;
+    self.userActivity.eligibleForSearch = true;
+    self.userActivity.eligibleForPrediction = true;
+
+    CSSearchableItemAttributeSet *contentAttribute;
+    if (@available(iOS 14.0, *)) {
+        contentAttribute = [[CSSearchableItemAttributeSet alloc] initWithContentType:UTTypeItem];
+    } else {
+        contentAttribute = [[CSSearchableItemAttributeSet alloc] initWithItemContentType:@"public.item"];
+    }
+
+    contentAttribute.title = self.roomDataSource.room.summary.displayname;
+    contentAttribute.displayName = self.roomDataSource.room.summary.displayname;
+    contentAttribute.contentDescription = self.roomDataSource.room.summary.lastMessage.text;
+
+    // TODO: contentAttribute.thumbnailURL =
+    // TODO: accountHandles of everyone in the room
+    contentAttribute.instantMessageAddresses = [[NSArray alloc] initWithObjects:self.roomDataSource.roomId, nil];
+
+    self.userActivity.contentAttributeSet = contentAttribute;
+}
+
 - (void)roomInputToolbarViewPresentStickerPicker
 {
     // Search for the sticker picker widget in the user account

Riot/SupportingFiles/Info.plist

@@ -65,6 +65,10 @@
 	<string>The photo library is used to send photos and videos.</string>
 	<key>NSSiriUsageDescription</key>
 	<string>Siri is used to perform calls even from the lock screen.</string>
+	<key>NSUserActivityTypes</key>
+	<array>
+		<string>org.matrix.room</string>
+	</array>
 	<key>UIBackgroundModes</key>
 	<array>
 		<string>audio</string>