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47 lines
1.4 KiB
47 lines
1.4 KiB
import 'package:flutter/cupertino.dart';
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import 'package:flutter/foundation.dart';
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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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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(kIsWeb ? 1.0 : 0.0, -2.0);
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}
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List<TextSelectionPoint> globalize(
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Iterable<TextSelectionPoint> points, RenderBox box) {
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return points.map<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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