[platform_view]Send platform message when platform view is focused (#105050)

Author: hellohuanlin

.ci.yaml

@@ -3657,6 +3657,17 @@ targets:
       - bin/**
       - .ci.yaml
 
+  - name: Mac native_platform_view_ui_tests_ios
+    bringup: true
+    recipe: devicelab/devicelab_drone
+    presubmit: false
+    timeout: 60
+    properties:
+      tags: >
+        ["devicelab", "hostonly"]
+      task_name: native_platform_view_ui_tests_ios
+    scheduler: luci
+
   - name: Mac run_release_test_macos
     recipe: devicelab/devicelab_drone
     timeout: 60

TESTOWNERS

@@ -195,7 +195,7 @@
 /dev/devicelab/bin/tasks/module_custom_host_app_name_test.dart @zanderso @flutter/tool
 /dev/devicelab/bin/tasks/module_host_with_custom_build_test.dart @zanderso @flutter/tool
 /dev/devicelab/bin/tasks/module_test.dart @zanderso @flutter/tool
-/dev/devicelab/bin/tasks/native_ui_tests_ios.dart @jmagman @flutter/engine
+/dev/devicelab/bin/tasks/native_platform_view_ui_tests_ios.dart @hellohuanlin @flutter/ios
 /dev/devicelab/bin/tasks/native_ui_tests_macos.dart @cbracken @flutter/desktop
 /dev/devicelab/bin/tasks/plugin_test.dart @stuartmorgan @flutter/plugin
 /dev/devicelab/bin/tasks/plugin_test_ios.dart @jmagman @flutter/ios

dev/devicelab/bin/tasks/native_platform_view_ui_tests_ios.dart

@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_devicelab/framework/devices.dart';
+import 'package:flutter_devicelab/framework/framework.dart';
+import 'package:flutter_devicelab/framework/ios.dart';
+import 'package:flutter_devicelab/framework/task_result.dart';
+import 'package:flutter_devicelab/framework/utils.dart';
+import 'package:path/path.dart' as path;
+
+Future<void> main() async {
+  await task(() async {
+    final String projectDirectory = '${flutterDirectory.path}/dev/integration_tests/ios_platform_view_tests';
+
+    await inDirectory(projectDirectory, () async {
+      section('Build clean');
+
+      await flutter('clean');
+
+      section('Build platform view app');
+
+      await flutter(
+        'build',
+        options: <String>[
+          'ios',
+          '-v',
+          '--release',
+          '--config-only',
+        ],
+      );
+    });
+
+    section('Run platform view XCUITests');
+
+    final Device device = await devices.workingDevice;
+    if (!await runXcodeTests(
+      platformDirectory: path.join(projectDirectory, 'ios'),
+      destination: 'id=${device.deviceId}',
+      testName: 'native_platform_view_ui_tests_ios',
+    )) {
+      return TaskResult.failure('Platform view XCUITests failed');
+    }
+
+    return TaskResult.success(null);
+  });
+}

dev/devicelab/lib/tasks/integration_tests.dart

@@ -83,6 +83,9 @@ TaskFunction createIOSPlatformViewTests() {
   return DriverTest(
     '${flutterDirectory.path}/dev/integration_tests/ios_platform_view_tests',
     'lib/main.dart',
+    extraOptions: <String>[
+      '--dart-define=ENABLE_DRIVER_EXTENSION=true',
+    ],
   );
 }
 

dev/integration_tests/ios_platform_view_tests/ios/PlatformViewUITests/PlatformViewUITests.m

@@ -0,0 +1,51 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+@import XCTest;
+
+@interface XCUIElement(KeyboardFocus)
+@property (nonatomic, readonly) BOOL flt_hasKeyboardFocus;
+@end
+
+@implementation XCUIElement(KeyboardFocus)
+- (BOOL)flt_hasKeyboardFocus {
+  return [[self valueForKey:@"hasKeyboardFocus"] boolValue];
+}
+@end
+
+@interface PlatformViewUITests : XCTestCase
+@property (strong) XCUIApplication *app;
+@end
+
+@implementation PlatformViewUITests
+
+- (void)setUp {
+  self.continueAfterFailure = NO;
+
+  self.app = [[XCUIApplication alloc] init];
+  [self.app launch];
+}
+- (void)testPlatformViewFocus {
+
+  XCUIElement *entranceButton = self.app.buttons[@"platform view focus test"];
+  XCTAssertTrue([entranceButton waitForExistenceWithTimeout:1]);
+  [entranceButton tap];
+
+  XCUIElement *platformView = self.app.textFields[@"platform_view[0]"];
+  XCTAssertTrue([platformView waitForExistenceWithTimeout:1]);
+  XCUIElement *flutterTextField = self.app.textFields[@"Flutter Text Field"];
+  XCTAssertTrue([flutterTextField waitForExistenceWithTimeout:1]);
+
+  [flutterTextField tap];
+  XCTAssertTrue([self.app.windows.element waitForExistenceWithTimeout:1]);
+  XCTAssertFalse(platformView.flt_hasKeyboardFocus);
+  XCTAssertTrue(flutterTextField.flt_hasKeyboardFocus);
+
+  // Tapping on platformView should unfocus the previously focused flutterTextField
+  [platformView tap];
+  XCTAssertTrue(platformView.flt_hasKeyboardFocus);
+  XCTAssertFalse(flutterTextField.flt_hasKeyboardFocus);
+}
+
+@end