70 lines
2.0 KiB
Dart
70 lines
2.0 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter_test/flutter_test.dart';
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// Returns the first RenderEditable.
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RenderEditable findRenderEditable(WidgetTester tester) {
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final RenderObject root = tester.renderObject(find.byType(EditableText));
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expect(root, isNotNull);
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late RenderEditable renderEditable;
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void recursiveFinder(RenderObject child) {
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if (child is RenderEditable) {
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renderEditable = child;
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return;
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}
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child.visitChildren(recursiveFinder);
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}
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root.visitChildren(recursiveFinder);
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expect(renderEditable, isNotNull);
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return renderEditable;
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}
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List<TextSelectionPoint> globalize(Iterable<TextSelectionPoint> points, RenderBox box) {
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return points.map<TextSelectionPoint>((TextSelectionPoint point) {
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return TextSelectionPoint(
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box.localToGlobal(point.point),
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point.direction,
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);
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}).toList();
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}
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Offset textOffsetToPosition(WidgetTester tester, int offset) {
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final RenderEditable renderEditable = findRenderEditable(tester);
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final List<TextSelectionPoint> endpoints = globalize(
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renderEditable.getEndpointsForSelection(
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TextSelection.collapsed(offset: offset),
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),
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renderEditable,
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);
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expect(endpoints.length, 1);
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return endpoints[0].point + const Offset(0.0, -2.0);
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}
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// Simple controller that builds a WidgetSpan with 100 height.
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class OverflowWidgetTextEditingController extends TextEditingController {
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@override
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TextSpan buildTextSpan({
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required BuildContext context,
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TextStyle? style,
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required bool withComposing,
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}) {
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return TextSpan(
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style: style,
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children: <InlineSpan>[
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const TextSpan(text: 'Hi'),
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WidgetSpan(
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child: Container(
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color: Colors.redAccent,
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height: 100.0,
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),
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),
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],
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);
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}
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}
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