Begin UI port

shell/platform/fuchsia/flutter/tests/integration/touch-input/one-flutter/lib/one-flutter.dart

@@ -1,18 +1,148 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
+// Copyright 2020 The Fuchsia Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // TODO(https://fxbug.dev/84961): Fix null safety and remove this language version.
 // @dart=2.9
 
-import 'dart:convert';
-import 'dart:typed_data';
-import 'dart:io';
-import 'dart:ui';
+import 'dart:ui' as ui;
 
-import 'package:fidl_fuchsia_ui_test_input/fidl_async.dart';
+import 'package:fidl_fuchsia_ui_test_input/fidl_async.dart' as test_touch;
+import 'package:flutter/material.dart';
 import 'package:fuchsia_services/services.dart';
+import 'package:zircon/zircon.dart';
 
-int main() {
-  print('touch-input-view: starting');
+void main() {
+  print('Launching one-flutter view');
+  MyApp app = MyApp();
+  app.run();
+}
+
+class MyApp {
+
+
+  void run() {
+    childView.create(hitTestable, focusable, (ByteData reply) {
+        // Set up window allbacks.
+        window.onPointerDataPacket = (PointerDataPacket packet) {
+          for (final data in packet.data) {
+            if (data.change == PointerChange.down) {
+              this._backgroundColor = _black;
+            }
+          }
+          window.scheduleFrame();
+        };
+        window.onMetricsChanged = () {
+          window.scheduleFrame();
+        };
+        window.onBeginFrame = (Duration duration) {
+          this.beginFrame(duration);
+        };
+
+        // The child view should be attached to Scenic now.
+        // Ready to build the scene.
+        window.scheduleFrame();
+      });
+  }
+
+  void beginFrame(Duration duration) {
+    final pixelRatio = window.devicePixelRatio;
+    final size = window.physicalSize / pixelRatio;
+    final physicalBounds = Offset.zero & size * pixelRatio;
+    final recorder = PictureRecorder();
+    final canvas = Canvas(recorder, physicalBounds);
+    canvas.scale(pixelRatio, pixelRatio);
+    final paint = Paint()..color = this._backgroundColor;
+    canvas.drawRect(Rect.fromLTWH(0, 0, size.width, size.height), paint);
+    final picture = recorder.endRecording();
+    final sceneBuilder = SceneBuilder()
+      ..pushClipRect(physicalBounds)
+      ..addPicture(Offset.zero, picture)
+      ..pop();
+    window.render(sceneBuilder.build());
+  }
+
+  void pointerDataPacket(PointerDataPacket packet) {
+    for (final data in packet.data) {
+      if (data.change == PointerChange.down) {
+        this._backgroundColor = _yellow;
+      }
+    }
+    window.scheduleFrame();
+  }
+}
+
+class MyHomePage extends StatefulWidget {
+  const MyHomePage({Key key}) : super(key: key);
+
+  @override
+  _MyHomePageState createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  // Each tap down event will bump up the counter, and we change the color.
+  int _touchCounter = 0;
+
+  final List<MaterialColor> _colors = <MaterialColor>[
+    Colors.red,
+    Colors.orange,
+    Colors.yellow,
+    Colors.green,
+    Colors.blue,
+    Colors.purple,
+  ];
+
+  final _responseListener = test_touch.TouchInputListenerProxy();
+
+  _MyHomePageState() {
+    Incoming.fromSvcPath()
+      ..connectToService(_responseListener)
+      ..close();
+
+    // We inspect the lower-level data packets, instead of using the higher-level gesture library.
+    WidgetsBinding.instance.window.onPointerDataPacket =
+        (ui.PointerDataPacket packet) {
+      // Record the time when the pointer event was received.
+      int nowNanos = System.clockGetMonotonic();
+
+      for (ui.PointerData data in packet.data) {
+        print('Flutter received a pointer: ${data.toStringFull()}');
+        if (data.change == ui.PointerChange.down) {
+          setState(() {
+            _touchCounter++; // Trigger color change on DOWN event.
+          });
+        }
+
+        if (data.change == ui.PointerChange.down ||
+            data.change == ui.PointerChange.move) {
+          _respond(test_touch.TouchInputListenerReportTouchInputRequest(
+              // Notify test that input was seen.
+              localX: data.physicalX,
+              localY: data.physicalY,
+              timeReceived: nowNanos,
+              componentName: 'one-flutter'));
+        }
+      }
+    };
+  }
+
+  void _respond(
+      test_touch.TouchInputListenerReportTouchInputRequest request) async {
+    await _responseListener.reportTouchInput(request);
+  }
+
+  @override
+  Widget build(BuildContext context) => Scaffold(
+      appBar: AppBar(),
+      body: Center(
+          child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: <Widget>[
+            Container(
+                width: 200,
+                height: 200,
+                decoration: BoxDecoration(
+                    color: _colors[_touchCounter % _colors.length],
+                    shape: BoxShape.rectangle))
+          ])));
 }