// 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/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_api_samples/material/selection_container/selection_container_disabled.0.dart'
    as example;
import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets('A SelectionContainer.disabled should disable selections', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const example.SelectionContainerDisabledExampleApp(),
    );

    expect(
      find.widgetWithText(AppBar, 'SelectionContainer.disabled Sample'),
      findsOne,
    );

    final RenderParagraph paragraph1 = tester.renderObject<RenderParagraph>(
      find.descendant(
        of: find.text('Selectable text').first,
        matching: find.byType(RichText),
      ),
    );
    final Rect paragraph1Rect = tester.getRect(
      find.text('Selectable text').first,
    );
    final TestGesture gesture = await tester.startGesture(
      paragraph1Rect.centerLeft,
      kind: PointerDeviceKind.mouse,
    );
    addTearDown(gesture.removePointer);
    await tester.pump();

    await gesture.moveTo(paragraph1Rect.center);
    await tester.pump();
    expect(
      paragraph1.selections.first,
      const TextSelection(baseOffset: 0, extentOffset: 7),
    );

    final RenderParagraph paragraph2 = tester.renderObject<RenderParagraph>(
      find.descendant(
        of: find.text('Non-selectable text'),
        matching: find.byType(RichText),
      ),
    );
    final Rect paragraph2Rect = tester.getRect(
      find.text('Non-selectable text'),
    );
    await gesture.moveTo(paragraph2Rect.center);
    // Should select the rest of paragraph 1.
    expect(
      paragraph1.selections.first,
      const TextSelection(baseOffset: 0, extentOffset: 15),
    );
    // paragraph2 is in a disabled container.
    expect(paragraph2.selections, isEmpty);

    final RenderParagraph paragraph3 = tester.renderObject<RenderParagraph>(
      find.descendant(
        of: find.text('Selectable text').last,
        matching: find.byType(RichText),
      ),
    );
    final Rect paragraph3Rect = tester.getRect(
      find.text('Selectable text').last,
    );
    await gesture.moveTo(paragraph3Rect.center);
    expect(
      paragraph1.selections.first,
      const TextSelection(baseOffset: 0, extentOffset: 15),
    );
    expect(paragraph2.selections, isEmpty);
    expect(
      paragraph3.selections.first,
      const TextSelection(baseOffset: 0, extentOffset: 7),
    );

    await gesture.up();
  });
}
