blob: 0ab44528e6906961408b82123a7a891ac1f80c22 [file] [log] [blame]
// 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);
case TargetPlatform.iOS:
expect(region.selectionControls, cupertinoTextSelectionHandleControls);
case TargetPlatform.linux:
case TargetPlatform.windows:
expect(region.selectionControls, desktopTextSelectionHandleControls);
case TargetPlatform.macOS:
expect(region.selectionControls, cupertinoDesktopTextSelectionHandleControls);
}
}, variant: TargetPlatformVariant.all());
testWidgets('Does not crash when long pressing on padding after dragging', (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/123378
await tester.pumpWidget(
const MaterialApp(
color: Color(0xFF2196F3),
title: 'Demo',
home: Scaffold(
body: SelectionArea(
child: Padding(
padding: EdgeInsets.all(100.0),
child: Text('Hello World'),
),
),
),
),
);
final TestGesture dragging = await tester.startGesture(const Offset(10, 10));
addTearDown(dragging.removePointer);
await tester.pump(const Duration(milliseconds: 500));
await dragging.moveTo(const Offset(90, 90));
await dragging.up();
final TestGesture longpress = await tester.startGesture(const Offset(20,20));
addTearDown(longpress.removePointer);
await tester.pump(const Duration(milliseconds: 500));
await longpress.up();
expect(tester.takeException(), isNull);
});
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?'),
),
),
);
await tester.pumpAndSettle();
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?'),
),
),
);
await tester.pumpAndSettle();
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');
});
testWidgets('stopping drag of end handle will show the toolbar', (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/119314
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Padding(
padding: const EdgeInsets.only(top: 64),
child: Column(
children: <Widget>[
const Text('How are you?'),
SelectionArea(
focusNode: FocusNode(),
child: const Text('Good, and you?'),
),
const Text('Fine, thank you.'),
],
),
),
),
),
);
await tester.pumpAndSettle();
final RenderParagraph paragraph2 = tester.renderObject<RenderParagraph>(find.descendant(of: find.text('Good, and you?'), matching: find.byType(RichText)));
final TestGesture gesture = await tester.startGesture(textOffsetToPosition(paragraph2, 7)); // at the 'a'
addTearDown(gesture.removePointer);
await tester.pump(const Duration(milliseconds: 500));
await gesture.up();
final List<TextBox> boxes = paragraph2.getBoxesForSelection(paragraph2.selections[0]);
expect(boxes.length, 1);
// There is a selection now.
// We check the presence of the copy button to make sure the selection toolbar
// is showing.
expect(find.text('Copy'), findsOneWidget);
// This is the position of the selection handle displayed at the end.
final Offset handlePos = paragraph2.localToGlobal(boxes[0].toRect().bottomRight);
await gesture.down(handlePos);
await gesture.moveTo(textOffsetToPosition(paragraph2, 11) + Offset(0, paragraph2.size.height / 2));
await tester.pump();
await gesture.up();
await tester.pump();
// After lifting the finger up, the selection toolbar should be showing again.
expect(find.text('Copy'), findsOneWidget);
},
variant: TargetPlatformVariant.all(),
skip: kIsWeb, // [intended]
);
}