Handle matrix.to links

android/app/src/main/AndroidManifest.xml

@@ -28,6 +28,23 @@
                 <action android:name="FLUTTER_NOTIFICATION_CLICK" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
+
+            <intent-filter>
+               <action android:name="android.intent.action.VIEW" />
+               <category android:name="android.intent.category.DEFAULT" />
+               <category android:name="android.intent.category.BROWSABLE" />
+               <data
+                   android:scheme="https"
+                   android:host="matrix.to"/>
+            </intent-filter>
+
+            <!--TODO: Add this filter, if you want to support sharing text into your app-->
+            <intent-filter>
+               <action android:name="android.intent.action.SEND" />
+               <category android:name="android.intent.category.DEFAULT" />
+               <data android:mimeType="text/*" />
+            </intent-filter>
+
         </activity>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->

lib/utils/url_launcher.dart

@@ -0,0 +1,55 @@
+import 'package:famedlysdk/famedlysdk.dart';
+import 'package:fluffychat/components/matrix.dart';
+import 'package:fluffychat/utils/app_route.dart';
+import 'package:fluffychat/views/chat.dart';
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class UrlLauncher {
+  final String url;
+  final BuildContext context;
+  const UrlLauncher(this.context, this.url);
+
+  void launchUrl() {
+    print("Open url: $url");
+    if (url.startsWith("https://matrix.to/#/")) {
+      return openMatrixToUrl();
+    }
+    launch(url);
+  }
+
+  void openMatrixToUrl() async {
+    final matrix = Matrix.of(context);
+    final String identifier = url.replaceAll("https://matrix.to/#/", "");
+    if (identifier.substring(0, 1) == "#") {
+      print("Join room ${Uri.encodeFull(identifier)}");
+      final response = await matrix.tryRequestWithLoadingDialog(
+        matrix.client.joinRoomById(
+          Uri.encodeComponent(identifier),
+        ),
+      );
+      if (response == false) return;
+      await Navigator.pushAndRemoveUntil(
+        context,
+        AppRoute.defaultRoute(context, Chat(response["room_id"])),
+        (r) => r.isFirst,
+      );
+    } else if (identifier.substring(0, 1) == "@") {
+      print("Start chat with user $identifier");
+      final User user = User(
+        identifier,
+        room: Room(id: "", client: matrix.client),
+      );
+      final String roomID =
+          await matrix.tryRequestWithLoadingDialog(user.startDirectChat());
+      Navigator.of(context).pop();
+
+      if (roomID != null) {
+        await Navigator.push(
+          context,
+          MaterialPageRoute(builder: (context) => Chat(roomID)),
+        );
+      }
+    }
+  }
+}

lib/views/chat_details.dart

@@ -13,9 +13,9 @@ import 'package:fluffychat/utils/room_state_enums_extensions.dart';
 import 'package:fluffychat/views/chat_list.dart';
 import 'package:fluffychat/views/invitation_selection.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:image_picker/image_picker.dart';
 import 'package:link_text/link_text.dart';
-import 'package:share/share.dart';
 import 'package:toast/toast.dart';
 
 class ChatDetails extends StatefulWidget {
@@ -157,8 +157,13 @@ class _ChatDetailsState extends State<ChatDetails> {
             if (widget.room.canonicalAlias?.isNotEmpty ?? false)
               IconButton(
                 icon: Icon(Icons.share),
-                onPressed: () => Share.share(
-                    "https://matrix.to/#/${widget.room.canonicalAlias}"),
+                onPressed: () {
+                  Clipboard.setData(
+                    ClipboardData(text: widget.room.canonicalAlias),
+                  );
+                  Toast.show("Invitation link copied to clipboard", context,
+                      duration: 5);
+                },
               ),
             ChatSettingsPopupMenu(widget.room, false)
           ],
@@ -209,6 +214,7 @@ class _ChatDetailsState extends State<ChatDetails> {
                               text: widget.room.topic?.isEmpty ?? true
                                   ? "Add a group description"
                                   : widget.room.topic,
+                              linkStyle: TextStyle(color: Colors.blueAccent),
                               textStyle: TextStyle(
                                 fontSize: 14,
                                 color: Colors.black,

lib/views/chat_list.dart

@@ -7,10 +7,12 @@ import 'package:fluffychat/components/dialogs/new_private_chat_dialog.dart';
 import 'package:fluffychat/components/list_items/chat_list_item.dart';
 import 'package:fluffychat/components/matrix.dart';
 import 'package:fluffychat/utils/app_route.dart';
+import 'package:fluffychat/utils/url_launcher.dart';
 import 'package:fluffychat/views/archive.dart';
 import 'package:fluffychat/views/settings.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_speed_dial/flutter_speed_dial.dart';
+import 'package:receive_sharing_intent/receive_sharing_intent.dart';
 
 enum SelectMode { normal, multi_select, share }
 
@@ -57,15 +59,40 @@ class _ChatListState extends State<ChatList> {
     searchController.addListener(
       () => setState(() => null),
     );
+    getSharedData();
     super.initState();
   }
 
+  StreamSubscription _intentDataStreamSubscription;
+
+  void processSharedText(String text) {
+    if (text.startsWith("https://matrix.to/#/")) {
+      UrlLauncher(context, text).openMatrixToUrl();
+    } else {
+      setState(() => Matrix.of(context).shareContent = {
+            "msgtype": "m.text",
+            "body": text,
+          });
+    }
+  }
+
+  void getSharedData() {
+    // For sharing or opening urls/text coming from outside the app while the app is in the memory
+    _intentDataStreamSubscription = ReceiveSharingIntent.getTextStream()
+        .listen(processSharedText, onError: (err) {
+      print("getLinkStream error: $err");
+    });
+    // For sharing or opening urls/text coming from outside the app while the app is closed
+    ReceiveSharingIntent.getInitialText().then(processSharedText);
+  }
+
   @override
   void dispose() {
     sub?.cancel();
     searchController.removeListener(
       () => setState(() => null),
     );
+    _intentDataStreamSubscription?.cancel();
     super.dispose();
   }
 

pubspec.lock

@@ -263,6 +263,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.5"
+  receive_sharing_intent:
+    dependency: "direct main"
+    description:
+      name: receive_sharing_intent
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.2"
   share:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -45,6 +45,7 @@ dependencies:
   path_provider: ^1.5.1
   webview_flutter: ^0.3.19+4
   share: ^0.6.3+5
+  receive_sharing_intent: ^1.3.2
 
 dev_dependencies:
   flutter_test: