[url_launcher] Add support for setting show title on Chrome Custom Tabs (flutter#6097)

- Adds showTitle option to platform interface & app-facing api
- Makes use of that parameter on android platform in order to set show title on Chrome Custom Tabs, when it is being used
- Makes android implementation use both legacy & new api (instead of passthrough from new to legacy), in order to allow use of the aforementioned parameter
- Adds a button to the example to test this parameter
- Adds tests

![Screenshot_20231018-095928](https://github.com/flutter/packages/assets/40719830/2f32d83f-066b-4048-a439-04e2d63befde)
(Notice title at the top of the page "CyLog Software - HTTP ...")

flutter/flutter#136784

Author: Alex-Usmanov

packages/url_launcher/url_launcher/CHANGELOG.md

@@ -1,5 +1,7 @@
-## NEXT
+## 6.3.0
 
+* Adds `BrowserConfiguration` parameter, to configure in-app browser views, such as Android Custom Tabs or SFSafariViewController.
+* Adds `showTitle` to `BrowserConfiguration`, to allow showing webpage titles in in-app browser views.
 * Updates minimum supported SDK version to Flutter 3.16/Dart 3.2.
 
 ## 6.2.6

packages/url_launcher/url_launcher/example/lib/main.dart

@@ -74,6 +74,16 @@ class _MyHomePageState extends State<MyHomePage> {
     }
   }
 
+  Future<void> _launchInAppWithBrowserOptions(Uri url) async {
+    if (!await launchUrl(
+      url,
+      mode: LaunchMode.inAppBrowserView,
+      browserConfiguration: const BrowserConfiguration(showTitle: true),
+    )) {
+      throw Exception('Could not launch $url');
+    }
+  }
+
   Future<void> _launchAsInAppWebViewWithCustomHeaders(Uri url) async {
     if (!await launchUrl(
       url,
@@ -220,6 +230,13 @@ class _MyHomePageState extends State<MyHomePage> {
                 child: const Text('Launch in app + close after 5 seconds'),
               ),
               const Padding(padding: EdgeInsets.all(16.0)),
+              ElevatedButton(
+                onPressed: () => setState(() {
+                  _launched = _launchInAppWithBrowserOptions(toLaunch);
+                }),
+                child: const Text('Launch in app with title displayed'),
+              ),
+              const Padding(padding: EdgeInsets.all(16.0)),
               Link(
                 uri: Uri.parse(
                     'https://pub.dev/documentation/url_launcher/latest/link/link-library.html'),

packages/url_launcher/url_launcher/lib/src/type_conversion.dart

@@ -8,14 +8,24 @@ import 'types.dart';
 
 /// Converts an (app-facing) [WebViewConfiguration] to a (platform interface)
 /// [InAppWebViewConfiguration].
-InAppWebViewConfiguration convertConfiguration(WebViewConfiguration config) {
+InAppWebViewConfiguration convertWebViewConfiguration(
+    WebViewConfiguration config) {
   return InAppWebViewConfiguration(
     enableJavaScript: config.enableJavaScript,
     enableDomStorage: config.enableDomStorage,
     headers: config.headers,
   );
 }
 
+/// Converts an (app-facing) [BrowserConfiguration] to a (platform interface)
+/// [InAppBrowserConfiguration].
+InAppBrowserConfiguration convertBrowserConfiguration(
+    BrowserConfiguration config) {
+  return InAppBrowserConfiguration(
+    showTitle: config.showTitle,
+  );
+}
+
 /// Converts an (app-facing) [LaunchMode] to a (platform interface)
 /// [PreferredLaunchMode].
 PreferredLaunchMode convertLaunchMode(LaunchMode mode) {

packages/url_launcher/url_launcher/lib/src/types.dart

@@ -55,3 +55,15 @@ class WebViewConfiguration {
   /// Not all browsers support this, so it is not guaranteed to be honored.
   final Map<String, String> headers;
 }
+
+/// Additional configuration options for [LaunchMode.inAppBrowserView]
+@immutable
+class BrowserConfiguration {
+  /// Creates a new InAppBrowserConfiguration with given settings.
+  const BrowserConfiguration({this.showTitle = false});
+
+  /// Whether or not to show the webpage title.
+  ///
+  /// May not be supported on all platforms.
+  final bool showTitle;
+}

packages/url_launcher/url_launcher/lib/src/url_launcher_string.dart

@@ -23,6 +23,7 @@ Future<bool> launchUrlString(
   String urlString, {
   LaunchMode mode = LaunchMode.platformDefault,
   WebViewConfiguration webViewConfiguration = const WebViewConfiguration(),
+  BrowserConfiguration browserConfiguration = const BrowserConfiguration(),
   String? webOnlyWindowName,
 }) async {
   if ((mode == LaunchMode.inAppWebView ||
@@ -35,7 +36,8 @@ Future<bool> launchUrlString(
     urlString,
     LaunchOptions(
       mode: convertLaunchMode(mode),
-      webViewConfiguration: convertConfiguration(webViewConfiguration),
+      webViewConfiguration: convertWebViewConfiguration(webViewConfiguration),
+      browserConfiguration: convertBrowserConfiguration(browserConfiguration),
       webOnlyWindowName: webOnlyWindowName,
     ),
   );

packages/url_launcher/url_launcher/lib/src/url_launcher_uri.dart

@@ -40,6 +40,7 @@ Future<bool> launchUrl(
   Uri url, {
   LaunchMode mode = LaunchMode.platformDefault,
   WebViewConfiguration webViewConfiguration = const WebViewConfiguration(),
+  BrowserConfiguration browserConfiguration = const BrowserConfiguration(),
   String? webOnlyWindowName,
 }) async {
   if ((mode == LaunchMode.inAppWebView ||
@@ -52,7 +53,8 @@ Future<bool> launchUrl(
     url.toString(),
     LaunchOptions(
       mode: convertLaunchMode(mode),
-      webViewConfiguration: convertConfiguration(webViewConfiguration),
+      webViewConfiguration: convertWebViewConfiguration(webViewConfiguration),
+      browserConfiguration: convertBrowserConfiguration(browserConfiguration),
       webOnlyWindowName: webOnlyWindowName,
     ),
   );

packages/url_launcher/url_launcher/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter plugin for launching a URL. Supports
   web, phone, SMS, and email schemes.
 repository: https://github.com/flutter/packages/tree/main/packages/url_launcher/url_launcher
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+url_launcher%22
-version: 6.2.6
+version: 6.3.0
 
 environment:
   sdk: ">=3.2.0 <4.0.0"
@@ -28,13 +28,13 @@ flutter:
 dependencies:
   flutter:
     sdk: flutter
-  url_launcher_android: ^6.2.0
+  url_launcher_android: ^6.3.0
   url_launcher_ios: ^6.2.4
   # Allow either the pure-native or Dart/native hybrid versions of the desktop
   # implementations, as both are compatible.
   url_launcher_linux: ^3.1.0
   url_launcher_macos: ^3.1.0
-  url_launcher_platform_interface: ^2.2.0
+  url_launcher_platform_interface: ^2.3.0
   url_launcher_web: ^2.2.0
   url_launcher_windows: ^3.1.0
 

packages/url_launcher/url_launcher/test/link_test.dart

@@ -61,6 +61,7 @@ void main() {
           enableDomStorage: true,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       await followLink!();
@@ -92,6 +93,7 @@ void main() {
           enableDomStorage: true,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       await followLink!();

packages/url_launcher/url_launcher/test/mocks/mock_url_launcher_platform.dart

@@ -17,6 +17,7 @@ class MockUrlLauncher extends Fake
   bool? enableJavaScript;
   bool? enableDomStorage;
   bool? universalLinksOnly;
+  bool? showTitle;
   Map<String, String>? headers;
   String? webOnlyWindowName;
 
@@ -41,6 +42,7 @@ class MockUrlLauncher extends Fake
     required bool universalLinksOnly,
     required Map<String, String> headers,
     required String? webOnlyWindowName,
+    required bool showTitle,
   }) {
     this.url = url;
     this.launchMode = launchMode;
@@ -51,6 +53,7 @@ class MockUrlLauncher extends Fake
     this.universalLinksOnly = universalLinksOnly;
     this.headers = headers;
     this.webOnlyWindowName = webOnlyWindowName;
+    this.showTitle = showTitle;
   }
 
   // ignore: use_setters_to_change_properties
@@ -87,6 +90,7 @@ class MockUrlLauncher extends Fake
     expect(universalLinksOnly, this.universalLinksOnly);
     expect(headers, this.headers);
     expect(webOnlyWindowName, this.webOnlyWindowName);
+    expect(webOnlyWindowName, this.webOnlyWindowName);
     launchCalled = true;
     return response!;
   }
@@ -98,6 +102,7 @@ class MockUrlLauncher extends Fake
     expect(options.webViewConfiguration.enableJavaScript, enableJavaScript);
     expect(options.webViewConfiguration.enableDomStorage, enableDomStorage);
     expect(options.webViewConfiguration.headers, headers);
+    expect(options.browserConfiguration.showTitle, showTitle);
     expect(options.webOnlyWindowName, webOnlyWindowName);
     launchCalled = true;
     return response!;

packages/url_launcher/url_launcher/test/src/legacy_api_test.dart

@@ -53,6 +53,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(await launch('http://flutter.dev/'), isTrue);
@@ -69,6 +70,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{'key': 'value'},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(
@@ -90,6 +92,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(await launch('http://flutter.dev/', forceSafariVC: true), isTrue);
@@ -106,6 +109,7 @@ void main() {
           universalLinksOnly: true,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(
@@ -125,6 +129,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(await launch('http://flutter.dev/', forceWebView: true), isTrue);
@@ -141,6 +146,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(
@@ -160,6 +166,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(
@@ -179,6 +186,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(await launch('http://flutter.dev/', forceSafariVC: false), isTrue);
@@ -200,6 +208,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(await launch('mailto:gmail-noreply@google.com?subject=Hello'),
@@ -231,6 +240,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
 
@@ -263,6 +273,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
 
@@ -296,6 +307,7 @@ void main() {
           universalLinksOnly: false,
           headers: <String, String>{},
           webOnlyWindowName: null,
+          showTitle: false,
         )
         ..setResponse(true);
       expect(