| // 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/cupertino.dart'; |
| import 'package:flutter/foundation.dart'; |
| import 'package:flutter/gestures.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| Offset textOffsetToPosition(RenderParagraph paragraph, int offset) { |
| const Rect caret = Rect.fromLTWH(0.0, 0.0, 2.0, 20.0); |
| final Offset localOffset = paragraph.getOffsetForCaret(TextPosition(offset: offset), caret); |
| return paragraph.localToGlobal(localOffset); |
| } |
| |
| void main() { |
| testWidgets('SelectionArea uses correct selection controls', (WidgetTester tester) async { |
| await tester.pumpWidget(const MaterialApp( |
| home: SelectionArea( |
| child: Text('abc'), |
| ), |
| )); |
| final SelectableRegion region = tester.widget<SelectableRegion>(find.byType(SelectableRegion)); |
| |
| switch (defaultTargetPlatform) { |
| case TargetPlatform.android: |
| case TargetPlatform.fuchsia: |
| expect(region.selectionControls, materialTextSelectionHandleControls); |
| break; |
| case TargetPlatform.iOS: |
| expect(region.selectionControls, cupertinoTextSelectionHandleControls); |
| break; |
| case TargetPlatform.linux: |
| case TargetPlatform.windows: |
| expect(region.selectionControls, desktopTextSelectionHandleControls); |
| break; |
| case TargetPlatform.macOS: |
| expect(region.selectionControls, cupertinoDesktopTextSelectionHandleControls); |
| break; |
| } |
| }, variant: TargetPlatformVariant.all()); |
| |
| testWidgets('builds the default context menu by default', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: SelectionArea( |
| focusNode: FocusNode(), |
| child: const Text('How are you?'), |
| ), |
| ), |
| ); |
| |
| expect(find.byType(AdaptiveTextSelectionToolbar), findsNothing); |
| |
| // Show the toolbar by longpressing. |
| final RenderParagraph paragraph1 = tester.renderObject<RenderParagraph>(find.descendant(of: find.text('How are you?'), matching: find.byType(RichText))); |
| final TestGesture gesture = await tester.startGesture(textOffsetToPosition(paragraph1, 6)); // at the 'r' |
| addTearDown(gesture.removePointer); |
| await tester.pump(const Duration(milliseconds: 500)); |
| // `are` is selected. |
| expect(paragraph1.selections[0], const TextSelection(baseOffset: 4, extentOffset: 7)); |
| await tester.pumpAndSettle(); |
| |
| expect(find.byType(AdaptiveTextSelectionToolbar), findsOneWidget); |
| }, |
| skip: kIsWeb, // [intended] |
| ); |
| |
| testWidgets('builds a custom context menu if provided', (WidgetTester tester) async { |
| final GlobalKey key = GlobalKey(); |
| await tester.pumpWidget( |
| MaterialApp( |
| home: SelectionArea( |
| focusNode: FocusNode(), |
| contextMenuBuilder: ( |
| BuildContext context, |
| SelectableRegionState selectableRegionState, |
| ) { |
| return Placeholder(key: key); |
| }, |
| child: const Text('How are you?'), |
| ), |
| ), |
| ); |
| |
| expect(find.byType(AdaptiveTextSelectionToolbar), findsNothing); |
| expect(find.byKey(key), findsNothing); |
| |
| // Show the toolbar by longpressing. |
| final RenderParagraph paragraph1 = tester.renderObject<RenderParagraph>(find.descendant(of: find.text('How are you?'), matching: find.byType(RichText))); |
| final TestGesture gesture = await tester.startGesture(textOffsetToPosition(paragraph1, 6)); // at the 'r' |
| addTearDown(gesture.removePointer); |
| await tester.pump(const Duration(milliseconds: 500)); |
| // `are` is selected. |
| expect(paragraph1.selections[0], const TextSelection(baseOffset: 4, extentOffset: 7)); |
| await tester.pumpAndSettle(); |
| |
| expect(find.byType(AdaptiveTextSelectionToolbar), findsNothing); |
| expect(find.byKey(key), findsOneWidget); |
| }, |
| skip: kIsWeb, // [intended] |
| ); |
| |
| testWidgets('onSelectionChange is called when the selection changes', (WidgetTester tester) async { |
| SelectedContent? content; |
| |
| await tester.pumpWidget(MaterialApp( |
| home: SelectionArea( |
| child: const Text('How are you'), |
| onSelectionChanged: (SelectedContent? selectedContent) => content = selectedContent, |
| ), |
| )); |
| final RenderParagraph paragraph = tester.renderObject<RenderParagraph>(find.descendant(of: find.text('How are you'), matching: find.byType(RichText))); |
| final TestGesture gesture = await tester.startGesture(textOffsetToPosition(paragraph, 4), kind: PointerDeviceKind.mouse); |
| expect(content, isNull); |
| addTearDown(gesture.removePointer); |
| await tester.pump(); |
| |
| await gesture.moveTo(textOffsetToPosition(paragraph, 7)); |
| await gesture.up(); |
| await tester.pump(); |
| expect(content, isNotNull); |
| expect(content!.plainText, 'are'); |
| |
| // Backwards selection. |
| await gesture.down(textOffsetToPosition(paragraph, 3)); |
| expect(content, isNull); |
| await gesture.moveTo(textOffsetToPosition(paragraph, 0)); |
| await gesture.up(); |
| await tester.pump(); |
| expect(content, isNotNull); |
| expect(content!.plainText, 'How'); |
| }); |
| } |