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2998 lines
100 KiB
Dart
2998 lines
100 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 'dart:ui' as ui;
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import 'package:flutter/foundation.dart';
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import 'package:flutter/src/physics/utils.dart' show nearEqual;
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import 'package:flutter/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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const Color _kScrollbarColor = Color(0xFF123456);
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const double _kThickness = 2.5;
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const double _kMinThumbExtent = 18.0;
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const Duration _kScrollbarFadeDuration = Duration(milliseconds: 300);
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const Duration _kScrollbarTimeToFade = Duration(milliseconds: 600);
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ScrollbarPainter _buildPainter({
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TextDirection textDirection = TextDirection.ltr,
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EdgeInsets padding = EdgeInsets.zero,
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Color color = _kScrollbarColor,
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double thickness = _kThickness,
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double mainAxisMargin = 0.0,
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double crossAxisMargin = 0.0,
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Radius? radius,
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Radius? trackRadius,
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double minLength = _kMinThumbExtent,
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double? minOverscrollLength,
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ScrollbarOrientation? scrollbarOrientation,
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required ScrollMetrics scrollMetrics,
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}) {
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return ScrollbarPainter(
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color: color,
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textDirection: textDirection,
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thickness: thickness,
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padding: padding,
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mainAxisMargin: mainAxisMargin,
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crossAxisMargin: crossAxisMargin,
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radius: radius,
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trackRadius: trackRadius,
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minLength: minLength,
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minOverscrollLength: minOverscrollLength ?? minLength,
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fadeoutOpacityAnimation: kAlwaysCompleteAnimation,
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scrollbarOrientation: scrollbarOrientation,
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)..update(scrollMetrics, scrollMetrics.axisDirection);
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}
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class _DrawRectOnceCanvas extends Fake implements Canvas {
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List<Rect> rects = <Rect>[];
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List<RRect> rrects = <RRect>[];
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@override
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void drawRect(Rect rect, Paint paint) {
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rects.add(rect);
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}
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@override
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void drawRRect(ui.RRect rrect, ui.Paint paint) {
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rrects.add(rrect);
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}
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@override
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void drawLine(Offset p1, Offset p2, Paint paint) {}
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}
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void main() {
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final _DrawRectOnceCanvas testCanvas = _DrawRectOnceCanvas();
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ScrollbarPainter painter;
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Rect captureRect() => testCanvas.rects.removeLast();
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RRect captureRRect() => testCanvas.rrects.removeLast();
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tearDown(() {
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testCanvas.rects.clear();
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testCanvas.rrects.clear();
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});
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final ScrollMetrics defaultMetrics = FixedScrollMetrics(
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minScrollExtent: 0,
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maxScrollExtent: 0,
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pixels: 0,
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viewportDimension: 100,
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axisDirection: AxisDirection.down,
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devicePixelRatio: 3.0,
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);
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test(
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'Scrollbar is not smaller than minLength with large scroll views, '
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'if minLength is small ',
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() {
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const double minLen = 3.5;
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const Size size = Size(600, 10);
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final ScrollMetrics metrics = defaultMetrics.copyWith(
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maxScrollExtent: 100000,
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viewportDimension: size.height,
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);
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// When overscroll.
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painter = _buildPainter(
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minLength: minLen,
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minOverscrollLength: minLen,
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scrollMetrics: metrics,
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);
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painter.paint(testCanvas, size);
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final Rect rect0 = captureRect();
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expect(rect0.top, 0);
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expect(rect0.left, size.width - _kThickness);
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expect(rect0.width, _kThickness);
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expect(rect0.height >= minLen, true);
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// When scroll normally.
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const double newPixels = 1.0;
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painter.update(metrics.copyWith(pixels: newPixels), metrics.axisDirection);
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painter.paint(testCanvas, size);
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final Rect rect1 = captureRect();
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expect(rect1.left, size.width - _kThickness);
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expect(rect1.width, _kThickness);
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expect(rect1.height >= minLen, true);
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},
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);
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test(
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'When scrolling normally (no overscrolling), the size of the scrollbar stays the same, '
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'and it scrolls evenly',
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() {
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const double viewportDimension = 23;
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const double maxExtent = 100;
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final ScrollMetrics startingMetrics = defaultMetrics.copyWith(
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maxScrollExtent: maxExtent,
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viewportDimension: viewportDimension,
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);
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const Size size = Size(600, viewportDimension);
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const double minLen = 0;
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painter = _buildPainter(
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minLength: minLen,
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minOverscrollLength: minLen,
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scrollMetrics: defaultMetrics,
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);
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final List<ScrollMetrics> metricsList = <ScrollMetrics> [
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startingMetrics.copyWith(pixels: 0.01),
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...List<ScrollMetrics>.generate(
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(maxExtent / viewportDimension).round(),
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(int index) => startingMetrics.copyWith(pixels: (index + 1) * viewportDimension),
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).where((ScrollMetrics metrics) => !metrics.outOfRange),
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startingMetrics.copyWith(pixels: maxExtent - 0.01),
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];
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late double lastCoefficient;
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for (final ScrollMetrics metrics in metricsList) {
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painter.update(metrics, metrics.axisDirection);
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painter.paint(testCanvas, size);
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final Rect rect = captureRect();
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final double newCoefficient = metrics.pixels/rect.top;
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lastCoefficient = newCoefficient;
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expect(rect.top >= 0, true);
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expect(rect.bottom <= maxExtent, true);
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expect(rect.left, size.width - _kThickness);
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expect(rect.width, _kThickness);
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expect(nearEqual(rect.height, viewportDimension * viewportDimension / (viewportDimension + maxExtent), 0.001), true);
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expect(nearEqual(lastCoefficient, newCoefficient, 0.001), true);
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}
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},
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);
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test(
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'mainAxisMargin is respected',
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() {
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const double viewportDimension = 23;
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const double maxExtent = 100;
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final ScrollMetrics startingMetrics = defaultMetrics.copyWith(
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maxScrollExtent: maxExtent,
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viewportDimension: viewportDimension,
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);
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const Size size = Size(600, viewportDimension);
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const double minLen = 0;
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const List<double> margins = <double> [-10, 1, viewportDimension/2 - 0.01];
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for (final double margin in margins) {
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painter = _buildPainter(
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mainAxisMargin: margin,
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minLength: minLen,
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scrollMetrics: defaultMetrics,
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);
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// Overscroll to double.negativeInfinity (top).
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painter.update(
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startingMetrics.copyWith(pixels: double.negativeInfinity),
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startingMetrics.axisDirection,
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);
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painter.paint(testCanvas, size);
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expect(captureRect().top, margin);
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// Overscroll to double.infinity (down).
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painter.update(
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startingMetrics.copyWith(pixels: double.infinity),
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startingMetrics.axisDirection,
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);
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painter.paint(testCanvas, size);
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expect(size.height - captureRect().bottom, margin);
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}
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},
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);
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test(
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'crossAxisMargin & text direction are respected',
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() {
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const double viewportDimension = 23;
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const double maxExtent = 100;
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final ScrollMetrics startingMetrics = defaultMetrics.copyWith(
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maxScrollExtent: maxExtent,
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viewportDimension: viewportDimension,
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);
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const Size size = Size(600, viewportDimension);
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const double margin = 4;
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for (final TextDirection textDirection in TextDirection.values) {
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painter = _buildPainter(
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crossAxisMargin: margin,
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scrollMetrics: startingMetrics,
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textDirection: textDirection,
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);
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for (final AxisDirection direction in AxisDirection.values) {
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painter.update(
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startingMetrics.copyWith(axisDirection: direction),
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direction,
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);
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painter.paint(testCanvas, size);
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final Rect rect = captureRect();
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switch (direction) {
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case AxisDirection.up:
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case AxisDirection.down:
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expect(
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margin,
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textDirection == TextDirection.ltr
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? size.width - rect.right
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: rect.left,
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);
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case AxisDirection.left:
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case AxisDirection.right:
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expect(margin, size.height - rect.bottom);
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}
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}
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}
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},
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);
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test('scrollbarOrientation are respected', () {
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const double viewportDimension = 23;
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const double maxExtent = 100;
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final ScrollMetrics startingMetrics = defaultMetrics.copyWith(
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maxScrollExtent: maxExtent,
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viewportDimension: viewportDimension,
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);
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const Size size = Size(600, viewportDimension);
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for (final ScrollbarOrientation scrollbarOrientation in ScrollbarOrientation.values) {
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final AxisDirection axisDirection;
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if (scrollbarOrientation == ScrollbarOrientation.left || scrollbarOrientation == ScrollbarOrientation.right) {
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axisDirection = AxisDirection.down;
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} else {
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axisDirection = AxisDirection.right;
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}
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painter = _buildPainter(
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scrollMetrics: startingMetrics,
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scrollbarOrientation: scrollbarOrientation,
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);
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painter.update(
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startingMetrics.copyWith(axisDirection: axisDirection),
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axisDirection
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);
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painter.paint(testCanvas, size);
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final Rect rect = captureRect();
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switch (scrollbarOrientation) {
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case ScrollbarOrientation.left:
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expect(rect.left, 0);
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expect(rect.top, 0);
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expect(rect.right, _kThickness);
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expect(rect.bottom, _kMinThumbExtent);
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case ScrollbarOrientation.right:
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expect(rect.left, 600 - _kThickness);
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expect(rect.top, 0);
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expect(rect.right, 600);
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expect(rect.bottom, _kMinThumbExtent);
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case ScrollbarOrientation.top:
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expect(rect.left, 0);
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expect(rect.top, 0);
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expect(rect.right, _kMinThumbExtent);
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expect(rect.bottom, _kThickness);
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case ScrollbarOrientation.bottom:
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expect(rect.left, 0);
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expect(rect.top, 23 - _kThickness);
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expect(rect.right, _kMinThumbExtent);
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expect(rect.bottom, 23);
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}
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}
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});
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test('scrollbarOrientation default values are correct', () {
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const double viewportDimension = 23;
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const double maxExtent = 100;
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final ScrollMetrics startingMetrics = defaultMetrics.copyWith(
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maxScrollExtent: maxExtent,
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viewportDimension: viewportDimension,
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);
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const Size size = Size(600, viewportDimension);
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Rect rect;
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// Vertical scroll with TextDirection.ltr
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painter = _buildPainter(
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scrollMetrics: startingMetrics,
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);
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painter.update(
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startingMetrics.copyWith(axisDirection: AxisDirection.down),
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AxisDirection.down
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);
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painter.paint(testCanvas, size);
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rect = captureRect();
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expect(rect.left, 600 - _kThickness);
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expect(rect.top, 0);
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expect(rect.right, 600);
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expect(rect.bottom, _kMinThumbExtent);
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// Vertical scroll with TextDirection.rtl
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painter = _buildPainter(
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scrollMetrics: startingMetrics,
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textDirection: TextDirection.rtl,
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);
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painter.update(
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startingMetrics.copyWith(axisDirection: AxisDirection.down),
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AxisDirection.down
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);
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painter.paint(testCanvas, size);
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rect = captureRect();
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expect(rect.left, 0);
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expect(rect.top, 0);
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expect(rect.right, _kThickness);
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expect(rect.bottom, _kMinThumbExtent);
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// Horizontal scroll
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painter = _buildPainter(
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scrollMetrics: startingMetrics,
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);
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painter.update(
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startingMetrics.copyWith(axisDirection: AxisDirection.right),
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AxisDirection.right,
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);
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painter.paint(testCanvas, size);
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rect = captureRect();
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expect(rect.left, 0);
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expect(rect.top, 23 - _kThickness);
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expect(rect.right, _kMinThumbExtent);
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expect(rect.bottom, 23);
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});
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group('Padding works for all scroll directions', () {
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const EdgeInsets padding = EdgeInsets.fromLTRB(1, 2, 3, 4);
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const Size size = Size(60, 80);
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final ScrollMetrics metrics = defaultMetrics.copyWith(
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minScrollExtent: -100,
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maxScrollExtent: 240,
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axisDirection: AxisDirection.down,
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);
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final ScrollbarPainter painter = _buildPainter(
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padding: padding,
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scrollMetrics: metrics,
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);
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testWidgets('down', (WidgetTester tester) async {
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painter.update(
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metrics.copyWith(
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viewportDimension: size.height,
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pixels: double.negativeInfinity,
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),
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AxisDirection.down,
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);
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// Top overscroll.
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painter.paint(testCanvas, size);
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final Rect rect0 = captureRect();
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expect(rect0.top, padding.top);
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expect(size.width - rect0.right, padding.right);
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// Bottom overscroll.
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painter.update(
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metrics.copyWith(
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viewportDimension: size.height,
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pixels: double.infinity,
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),
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AxisDirection.down,
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);
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painter.paint(testCanvas, size);
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final Rect rect1 = captureRect();
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expect(size.height - rect1.bottom, padding.bottom);
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expect(size.width - rect1.right, padding.right);
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});
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testWidgets('up', (WidgetTester tester) async {
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painter.update(
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metrics.copyWith(
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viewportDimension: size.height,
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pixels: double.infinity,
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axisDirection: AxisDirection.up,
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),
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AxisDirection.up,
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);
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// Top overscroll.
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painter.paint(testCanvas, size);
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final Rect rect0 = captureRect();
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expect(rect0.top, padding.top);
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expect(size.width - rect0.right, padding.right);
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// Bottom overscroll.
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painter.update(
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metrics.copyWith(
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viewportDimension: size.height,
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pixels: double.negativeInfinity,
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axisDirection: AxisDirection.up,
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),
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AxisDirection.up,
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);
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painter.paint(testCanvas, size);
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final Rect rect1 = captureRect();
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expect(size.height - rect1.bottom, padding.bottom);
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expect(size.width - rect1.right, padding.right);
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});
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testWidgets('left', (WidgetTester tester) async {
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painter.update(
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metrics.copyWith(
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viewportDimension: size.width,
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pixels: double.negativeInfinity,
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axisDirection: AxisDirection.left,
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),
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AxisDirection.left,
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);
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// Right overscroll.
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painter.paint(testCanvas, size);
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final Rect rect0 = captureRect();
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expect(size.height - rect0.bottom, padding.bottom);
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expect(size.width - rect0.right, padding.right);
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// Left overscroll.
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painter.update(
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metrics.copyWith(
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viewportDimension: size.width,
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pixels: double.infinity,
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axisDirection: AxisDirection.left,
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),
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AxisDirection.left,
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);
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painter.paint(testCanvas, size);
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final Rect rect1 = captureRect();
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expect(size.height - rect1.bottom, padding.bottom);
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expect(rect1.left, padding.left);
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});
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testWidgets('right', (WidgetTester tester) async {
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painter.update(
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metrics.copyWith(
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viewportDimension: size.width,
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pixels: double.infinity,
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axisDirection: AxisDirection.right,
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),
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AxisDirection.right,
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);
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// Right overscroll.
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painter.paint(testCanvas, size);
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final Rect rect0 = captureRect();
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expect(size.height - rect0.bottom, padding.bottom);
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expect(size.width - rect0.right, padding.right);
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// Left overscroll.
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painter.update(
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metrics.copyWith(
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viewportDimension: size.width,
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pixels: double.negativeInfinity,
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axisDirection: AxisDirection.right,
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),
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AxisDirection.right,
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);
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painter.paint(testCanvas, size);
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final Rect rect1 = captureRect();
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expect(size.height - rect1.bottom, padding.bottom);
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expect(rect1.left, padding.left);
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});
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});
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testWidgets('thumb resizes gradually on overscroll', (WidgetTester tester) async {
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const EdgeInsets padding = EdgeInsets.fromLTRB(1, 2, 3, 4);
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const Size size = Size(60, 300);
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final double scrollExtent = size.height * 10;
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final ScrollMetrics metrics = defaultMetrics.copyWith(
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minScrollExtent: 0,
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maxScrollExtent: scrollExtent,
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axisDirection: AxisDirection.down,
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viewportDimension: size.height,
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);
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const double minOverscrollLength = 8.0;
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final ScrollbarPainter painter = _buildPainter(
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padding: padding,
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scrollMetrics: metrics,
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minLength: 36.0,
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minOverscrollLength: 8.0,
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);
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// No overscroll gives a full sized thumb.
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painter.update(
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metrics.copyWith(
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pixels: 0.0,
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),
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AxisDirection.down,
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);
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painter.paint(testCanvas, size);
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final double fullThumbExtent = captureRect().height;
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expect(fullThumbExtent, greaterThan(_kMinThumbExtent));
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// Scrolling to the middle also gives a full sized thumb.
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painter.update(
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metrics.copyWith(
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pixels: scrollExtent / 2,
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),
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AxisDirection.down,
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);
|
|
painter.paint(testCanvas, size);
|
|
expect(captureRect().height, moreOrLessEquals(fullThumbExtent, epsilon: 1e-6));
|
|
|
|
// Scrolling just to the very end also gives a full sized thumb.
|
|
painter.update(
|
|
metrics.copyWith(
|
|
pixels: scrollExtent,
|
|
),
|
|
AxisDirection.down,
|
|
);
|
|
painter.paint(testCanvas, size);
|
|
expect(captureRect().height, moreOrLessEquals(fullThumbExtent, epsilon: 1e-6));
|
|
|
|
// Scrolling just past the end shrinks the thumb slightly.
|
|
painter.update(
|
|
metrics.copyWith(
|
|
pixels: scrollExtent * 1.001,
|
|
),
|
|
AxisDirection.down,
|
|
);
|
|
painter.paint(testCanvas, size);
|
|
expect(captureRect().height, moreOrLessEquals(fullThumbExtent, epsilon: 2.0));
|
|
|
|
// Scrolling way past the end shrinks the thumb to minimum.
|
|
painter.update(
|
|
metrics.copyWith(
|
|
pixels: double.infinity,
|
|
),
|
|
AxisDirection.down,
|
|
);
|
|
painter.paint(testCanvas, size);
|
|
expect(captureRect().height, minOverscrollLength);
|
|
});
|
|
|
|
test('should scroll towards the right direction',
|
|
() {
|
|
const Size size = Size(60, 80);
|
|
const double maxScrollExtent = 240;
|
|
const double minScrollExtent = -100;
|
|
final ScrollMetrics startingMetrics = defaultMetrics.copyWith(
|
|
minScrollExtent: minScrollExtent,
|
|
maxScrollExtent: maxScrollExtent,
|
|
axisDirection: AxisDirection.down,
|
|
viewportDimension: size.height,
|
|
);
|
|
|
|
for (final double minLength in <double>[_kMinThumbExtent, double.infinity]) {
|
|
// Disregard `minLength` and `minOverscrollLength` to keep
|
|
// scroll direction correct, if needed
|
|
painter = _buildPainter(
|
|
minLength: minLength,
|
|
minOverscrollLength: minLength,
|
|
scrollMetrics: startingMetrics,
|
|
);
|
|
|
|
final Iterable<ScrollMetrics> metricsList = Iterable<ScrollMetrics>.generate(
|
|
9999,
|
|
(int index) => startingMetrics.copyWith(pixels: minScrollExtent + index * size.height / 3),
|
|
)
|
|
.takeWhile((ScrollMetrics metrics) => !metrics.outOfRange);
|
|
|
|
Rect? previousRect;
|
|
|
|
for (final ScrollMetrics metrics in metricsList) {
|
|
painter.update(metrics, metrics.axisDirection);
|
|
painter.paint(testCanvas, size);
|
|
final Rect rect = captureRect();
|
|
if (previousRect != null) {
|
|
if (rect.height == size.height) {
|
|
// Size of the scrollbar is too large for the view port
|
|
expect(previousRect.top <= rect.top, true);
|
|
expect(previousRect.bottom <= rect.bottom, true);
|
|
} else {
|
|
// The scrollbar can fit in the view port.
|
|
expect(previousRect.top < rect.top, true);
|
|
expect(previousRect.bottom < rect.bottom, true);
|
|
}
|
|
}
|
|
|
|
previousRect = rect;
|
|
}
|
|
}
|
|
},
|
|
);
|
|
|
|
test('trackRadius and radius is respected', () {
|
|
const double minLen = 3.5;
|
|
const Size size = Size(600, 10);
|
|
final ScrollMetrics metrics = defaultMetrics.copyWith(
|
|
maxScrollExtent: 100000,
|
|
viewportDimension: size.height,
|
|
);
|
|
|
|
painter = _buildPainter(
|
|
trackRadius: const Radius.circular(2.0),
|
|
radius: const Radius.circular(3.0),
|
|
minLength: minLen,
|
|
minOverscrollLength: minLen,
|
|
scrollMetrics: metrics,
|
|
);
|
|
|
|
painter.paint(testCanvas, size);
|
|
|
|
final RRect thumbRRect = captureRRect(); // thumb
|
|
expect(thumbRRect.blRadius, const Radius.circular(3.0));
|
|
expect(thumbRRect.brRadius, const Radius.circular(3.0));
|
|
expect(thumbRRect.tlRadius, const Radius.circular(3.0));
|
|
expect(thumbRRect.trRadius, const Radius.circular(3.0));
|
|
|
|
final RRect trackRRect = captureRRect(); // track
|
|
expect(trackRRect.blRadius, const Radius.circular(2.0));
|
|
expect(trackRRect.brRadius, const Radius.circular(2.0));
|
|
expect(trackRRect.tlRadius, const Radius.circular(2.0));
|
|
expect(trackRRect.trRadius, const Radius.circular(2.0));
|
|
});
|
|
|
|
testWidgets('ScrollbarPainter asserts if no TextDirection has been provided', (WidgetTester tester) async {
|
|
final ScrollbarPainter painter = ScrollbarPainter(
|
|
color: _kScrollbarColor,
|
|
fadeoutOpacityAnimation: kAlwaysCompleteAnimation,
|
|
);
|
|
const Size size = Size(60, 80);
|
|
final ScrollMetrics scrollMetrics = defaultMetrics.copyWith(
|
|
maxScrollExtent: 100000,
|
|
viewportDimension: size.height,
|
|
);
|
|
painter.update(scrollMetrics, scrollMetrics.axisDirection);
|
|
// Try to paint the scrollbar
|
|
try {
|
|
painter.paint(testCanvas, size);
|
|
} on AssertionError catch (error) {
|
|
expect(error.message, 'A TextDirection must be provided before a Scrollbar can be painted.');
|
|
}
|
|
});
|
|
|
|
testWidgets('Tapping the track area pages the Scroll View', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(width: 1000.0, height: 1000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 360.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Tap on the track area below the thumb.
|
|
await tester.tapAt(const Offset(796.0, 550.0));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, 400.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 240.0, 800.0, 600.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Tap on the track area above the thumb.
|
|
await tester.tapAt(const Offset(796.0, 50.0));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 360.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar never goes away until finger lift', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: MediaQueryData(),
|
|
child: RawScrollbar(
|
|
child: SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(SingleChildScrollView)));
|
|
await gesture.moveBy(const Offset(0.0, -20.0));
|
|
await tester.pump();
|
|
// Scrollbar fully showing
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
await tester.pump(const Duration(seconds: 3));
|
|
await tester.pump(const Duration(seconds: 3));
|
|
// Still there.
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
await gesture.up();
|
|
await tester.pump(_kScrollbarTimeToFade);
|
|
await tester.pump(_kScrollbarFadeDuration * 0.5);
|
|
|
|
// Opacity going down now.
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x4fbcbcbc),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar does not fade away while hovering', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: MediaQueryData(),
|
|
child: RawScrollbar(
|
|
child: SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(SingleChildScrollView)));
|
|
await gesture.moveBy(const Offset(0.0, -20.0));
|
|
await tester.pump();
|
|
// Scrollbar fully showing
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
final TestPointer testPointer = TestPointer(1, ui.PointerDeviceKind.mouse);
|
|
// Hover over the thumb to prevent the scrollbar from fading out.
|
|
testPointer.hover(const Offset(790.0, 5.0));
|
|
await gesture.up();
|
|
await tester.pump(const Duration(seconds: 3));
|
|
|
|
// Still there.
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar will fade back in when hovering over known track area', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: MediaQueryData(),
|
|
child: RawScrollbar(
|
|
child: SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(SingleChildScrollView)));
|
|
await gesture.moveBy(const Offset(0.0, -20.0));
|
|
await tester.pump();
|
|
// Scrollbar fully showing
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
await gesture.up();
|
|
await tester.pump(_kScrollbarTimeToFade);
|
|
await tester.pump(_kScrollbarFadeDuration * 0.5);
|
|
|
|
// Scrollbar is fading out
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x4fbcbcbc),
|
|
),
|
|
);
|
|
|
|
// Hover over scrollbar with mouse to bring opacity back up
|
|
final TestGesture mouseGesture = await tester.createGesture(kind: ui.PointerDeviceKind.mouse);
|
|
await mouseGesture.addPointer();
|
|
addTearDown(mouseGesture.removePointer);
|
|
await mouseGesture.moveTo(const Offset(794.0, 5.0));
|
|
await tester.pumpAndSettle();
|
|
// Scrollbar should be visible
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 3.0, 800.0, 93.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar will show on hover without needing to scroll first for metrics', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: MediaQueryData(),
|
|
child: RawScrollbar(
|
|
child: SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pump();
|
|
|
|
// Hover over scrollbar with mouse. Even though we have not scrolled, the
|
|
// ScrollMetricsNotification will have informed the Scrollbar's hit testing.
|
|
final TestGesture mouseGesture = await tester.createGesture(kind: ui.PointerDeviceKind.mouse);
|
|
await mouseGesture.addPointer();
|
|
addTearDown(mouseGesture.removePointer);
|
|
await mouseGesture.moveTo(const Offset(794.0, 5.0));
|
|
await tester.pumpAndSettle();
|
|
// Scrollbar should have appeared in response to hover event.
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar thumb can be dragged', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Drag the thumb down to scroll down.
|
|
const double scrollAmount = 10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
// The view has scrolled more than it would have by a swipe gesture of the
|
|
// same distance.
|
|
expect(scrollController.offset, greaterThan(scrollAmount * 2));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 10.0, 800.0, 100.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar thumb cannot be dragged into overscroll if the physics do not allow', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Try to drag the thumb into overscroll.
|
|
const double scrollAmount = -10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
// The physics should not have allowed us to enter overscroll.
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar thumb cannot be dragged into overscroll if the platform does not allow it', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: ScrollConfiguration(
|
|
// Don't apply a scrollbar automatically for this test.
|
|
behavior: const ScrollBehavior().copyWith(
|
|
scrollbars: false,
|
|
physics: const AlwaysScrollableScrollPhysics(),
|
|
),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
primary: true,
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Try to drag the thumb into overscroll.
|
|
const double scrollAmount = -10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
// The platform drag handling should not have allowed us to enter overscroll.
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
}, variant: const TargetPlatformVariant(<TargetPlatform>{
|
|
TargetPlatform.macOS,
|
|
TargetPlatform.linux,
|
|
TargetPlatform.windows,
|
|
TargetPlatform.fuchsia,
|
|
}));
|
|
|
|
testWidgets('Scrollbar thumb can be dragged into overscroll if the platform allows it', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: ScrollConfiguration(
|
|
// Don't apply a scrollbar automatically for this test.
|
|
behavior: const ScrollBehavior().copyWith(
|
|
scrollbars: false,
|
|
physics: const AlwaysScrollableScrollPhysics(),
|
|
),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Try to drag the thumb into overscroll.
|
|
const double scrollAmount = -10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
// The platform drag handling should have allowed us to enter overscroll.
|
|
expect(scrollController.offset, lessThan(-66.0));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
// The size of the scrollbar thumb shrinks when overscrolling
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 80.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
}, variant: const TargetPlatformVariant(<TargetPlatform>{
|
|
TargetPlatform.android,
|
|
TargetPlatform.iOS,
|
|
}));
|
|
|
|
// Regression test for https://github.com/flutter/flutter/issues/66444
|
|
testWidgets("RawScrollbar doesn't show when scroll the inner scrollable widget", (WidgetTester tester) async {
|
|
final GlobalKey key1 = GlobalKey();
|
|
final GlobalKey key2 = GlobalKey();
|
|
final GlobalKey outerKey = GlobalKey();
|
|
final GlobalKey innerKey = GlobalKey();
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
key: key2,
|
|
thumbColor: const Color(0x11111111),
|
|
child: SingleChildScrollView(
|
|
key: outerKey,
|
|
child: SizedBox(
|
|
height: 1000.0,
|
|
width: double.infinity,
|
|
child: Column(
|
|
children: <Widget>[
|
|
RawScrollbar(
|
|
key: key1,
|
|
thumbColor: const Color(0x22222222),
|
|
child: SizedBox(
|
|
height: 300.0,
|
|
width: double.infinity,
|
|
child: SingleChildScrollView(
|
|
key: innerKey,
|
|
child: const SizedBox(
|
|
key: Key('Inner scrollable'),
|
|
height: 1000.0,
|
|
width: double.infinity,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
// Drag the inner scrollable widget.
|
|
await tester.drag(find.byKey(innerKey), const Offset(0.0, -25.0));
|
|
await tester.pump();
|
|
// Scrollbar fully showing.
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
|
|
expect(
|
|
tester.renderObject(find.byKey(key2)),
|
|
paintsExactlyCountTimes(#drawRect, 2), // Each bar will call [drawRect] twice.
|
|
);
|
|
|
|
expect(
|
|
tester.renderObject(find.byKey(key1)),
|
|
paintsExactlyCountTimes(#drawRect, 2),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar hit test area adjusts for PointerDeviceKind', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Drag the scrollbar just outside of the painted thumb with touch input.
|
|
// The hit test area is padded to meet the minimum interactive size.
|
|
const double scrollAmount = 10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(790.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
// The scrollbar moved by scrollAmount, and the scrollOffset moved forward.
|
|
expect(scrollController.offset, greaterThan(0.0));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 10.0, 800.0, 100.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Move back to reset.
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, -scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.up();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// The same should not be possible with a mouse since it is more precise,
|
|
// the padding it not necessary.
|
|
final TestGesture gesture = await tester.createGesture(kind: ui.PointerDeviceKind.mouse);
|
|
await gesture.addPointer();
|
|
await gesture.down(const Offset(790.0, 45.0));
|
|
await tester.pump();
|
|
await gesture.moveTo(const Offset(790.0, 55.0));
|
|
await gesture.up();
|
|
await tester.pumpAndSettle();
|
|
// The scrollbar/scrollable should not have moved.
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('hit test', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/99324
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
bool onTap = false;
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
trackVisibility: true,
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: SingleChildScrollView(
|
|
child: GestureDetector(
|
|
onTap: () => onTap = true,
|
|
child: const SizedBox(
|
|
width: 4000.0,
|
|
height: 4000.0,
|
|
child: ColoredBox(color: Color(0x00000000)),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(onTap, false);
|
|
|
|
// Tap on track area.
|
|
await tester.tapAt(const Offset(795.0, 550.0));
|
|
await tester.pumpAndSettle();
|
|
expect(onTap, false);
|
|
|
|
// Tap on thumb area.
|
|
await tester.tapAt(const Offset(795.0, 10.0));
|
|
await tester.pumpAndSettle();
|
|
expect(onTap, false);
|
|
|
|
// Tap on content area.
|
|
await tester.tapAt(const Offset(400.0, 300.0));
|
|
await tester.pumpAndSettle();
|
|
expect(onTap, true);
|
|
});
|
|
|
|
testWidgets('RawScrollbar.thumbVisibility asserts that a ScrollPosition is attached', (WidgetTester tester) async {
|
|
final FlutterExceptionHandler? handler = FlutterError.onError;
|
|
FlutterErrorDetails? error;
|
|
FlutterError.onError = (FlutterErrorDetails details) {
|
|
error = details;
|
|
};
|
|
final ScrollController controller = ScrollController();
|
|
addTearDown(controller.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: controller,
|
|
thumbColor: const Color(0x11111111),
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(
|
|
height: 1000.0,
|
|
width: 50.0,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(error, isNotNull);
|
|
final AssertionError exception = error!.exception as AssertionError;
|
|
expect(
|
|
exception.message,
|
|
contains("The Scrollbar's ScrollController has no ScrollPosition attached."),
|
|
);
|
|
|
|
FlutterError.onError = handler;
|
|
});
|
|
|
|
testWidgets('RawScrollbar.thumbVisibility asserts that a ScrollPosition is attached', (WidgetTester tester) async {
|
|
final FlutterExceptionHandler? handler = FlutterError.onError;
|
|
FlutterErrorDetails? error;
|
|
FlutterError.onError = (FlutterErrorDetails details) {
|
|
error = details;
|
|
};
|
|
final ScrollController controller = ScrollController();
|
|
addTearDown(controller.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: controller,
|
|
thumbColor: const Color(0x11111111),
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(
|
|
height: 1000.0,
|
|
width: 50.0,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(error, isNotNull);
|
|
final AssertionError exception = error!.exception as AssertionError;
|
|
expect(
|
|
exception.message,
|
|
contains("The Scrollbar's ScrollController has no ScrollPosition attached."),
|
|
);
|
|
|
|
FlutterError.onError = handler;
|
|
});
|
|
|
|
testWidgets('Interactive scrollbars should have a valid scroll controller', (WidgetTester tester) async {
|
|
final ScrollController primaryScrollController = ScrollController();
|
|
addTearDown(primaryScrollController.dispose);
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: primaryScrollController,
|
|
child: RawScrollbar(
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(
|
|
height: 1000.0,
|
|
width: 1000.0,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
await tester.pumpAndSettle();
|
|
|
|
AssertionError? exception = tester.takeException() as AssertionError?;
|
|
// The scrollbar is not visible and cannot be interacted with, so no assertion.
|
|
expect(exception, isNull);
|
|
// Scroll to trigger the scrollbar to come into view.
|
|
final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(SingleChildScrollView)));
|
|
await gesture.moveBy(const Offset(0.0, -20.0));
|
|
exception = tester.takeException() as AssertionError;
|
|
expect(exception, isAssertionError);
|
|
expect(
|
|
exception.message,
|
|
'''
|
|
The Scrollbar's ScrollController has no ScrollPosition attached.
|
|
A Scrollbar cannot be painted without a ScrollPosition.
|
|
The Scrollbar attempted to use the PrimaryScrollController. This ScrollController should be associated with the ScrollView that the Scrollbar is being applied to.
|
|
If a ScrollController has not been provided, the PrimaryScrollController is used by default on mobile platforms for ScrollViews with an Axis.vertical scroll direction.
|
|
To use the PrimaryScrollController explicitly, set ScrollView.primary to true on the Scrollable widget.''',
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbars assert on multiple scroll positions', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: Row(
|
|
children: <Widget>[
|
|
RawScrollbar(
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 10.0, height: 4000.0),
|
|
),
|
|
),
|
|
RawScrollbar(
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 10.0, height: 4000.0),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
|
|
AssertionError? exception = tester.takeException() as AssertionError?;
|
|
// The scrollbar is not visible and cannot be interacted with, so no assertion.
|
|
expect(exception, isNull);
|
|
// Scroll to trigger the scrollbar to come into view.
|
|
final Finder scrollViews = find.byType(SingleChildScrollView);
|
|
final TestGesture gesture = await tester.startGesture(tester.getCenter(scrollViews.first));
|
|
await gesture.moveBy(const Offset(0.0, -20.0));
|
|
exception = tester.takeException() as AssertionError;
|
|
expect(exception, isAssertionError);
|
|
expect(
|
|
exception.message,
|
|
'''
|
|
The provided ScrollController is attached to more than one ScrollPosition.
|
|
The Scrollbar requires a single ScrollPosition in order to be painted.
|
|
When the scrollbar is interactive, the associated ScrollController must only have one ScrollPosition attached.
|
|
The provided ScrollController cannot be shared by multiple ScrollView widgets.''',
|
|
);
|
|
});
|
|
|
|
testWidgets('Simultaneous dragging and pointer scrolling does not cause a crash', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/70105
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x00000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x00000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66bcbcbc),
|
|
),
|
|
);
|
|
|
|
// Drag the thumb down to scroll down.
|
|
const double scrollAmount = 10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x00000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x00000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
// Drag color
|
|
color: const Color(0x66bcbcbc),
|
|
),
|
|
);
|
|
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, greaterThan(10.0));
|
|
final double previousOffset = scrollController.offset;
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x00000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x00000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 10.0, 800.0, 100.0),
|
|
color: const Color(0x66bcbcbc),
|
|
),
|
|
);
|
|
|
|
// Execute a pointer scroll while dragging (drag gesture has not come up yet)
|
|
final TestPointer pointer = TestPointer(1, ui.PointerDeviceKind.mouse);
|
|
pointer.hover(const Offset(798.0, 15.0));
|
|
await tester.sendEventToBinding(pointer.scroll(const Offset(0.0, 20.0)));
|
|
await tester.pumpAndSettle();
|
|
|
|
if (!kIsWeb) {
|
|
// Scrolling while holding the drag on the scrollbar and still hovered over
|
|
// the scrollbar should not have changed the scroll offset.
|
|
expect(pointer.location, const Offset(798.0, 15.0));
|
|
expect(scrollController.offset, previousOffset);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x00000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x00000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 10.0, 800.0, 100.0),
|
|
color: const Color(0x66bcbcbc),
|
|
),
|
|
);
|
|
} else {
|
|
expect(pointer.location, const Offset(798.0, 15.0));
|
|
expect(scrollController.offset, previousOffset + 20.0);
|
|
}
|
|
|
|
// Drag is still being held, move pointer to be hovering over another area
|
|
// of the scrollable (not over the scrollbar) and execute another pointer scroll
|
|
pointer.hover(tester.getCenter(find.byType(SingleChildScrollView)));
|
|
await tester.sendEventToBinding(pointer.scroll(const Offset(0.0, -90.0)));
|
|
await tester.pumpAndSettle();
|
|
// Scrolling while holding the drag on the scrollbar changed the offset
|
|
expect(pointer.location, const Offset(400.0, 300.0));
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x00000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x00000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66bcbcbc),
|
|
),
|
|
);
|
|
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x00000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x00000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66bcbcbc),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar thumb can be dragged in reverse', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
reverse: true,
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 510.0, 800.0, 600.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Drag the thumb up to scroll up.
|
|
const double scrollAmount = 10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 550.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, -scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
// The view has scrolled more than it would have by a swipe gesture of the
|
|
// same distance.
|
|
expect(scrollController.offset, greaterThan(scrollAmount * 2));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 500.0, 800.0, 590.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('ScrollbarPainter asserts if scrollbarOrientation is used with wrong axisDirection', (WidgetTester tester) async {
|
|
final ScrollbarPainter painter = ScrollbarPainter(
|
|
color: _kScrollbarColor,
|
|
fadeoutOpacityAnimation: kAlwaysCompleteAnimation,
|
|
textDirection: TextDirection.ltr,
|
|
scrollbarOrientation: ScrollbarOrientation.left,
|
|
);
|
|
const Size size = Size(60, 80);
|
|
final ScrollMetrics scrollMetrics = defaultMetrics.copyWith(
|
|
maxScrollExtent: 100,
|
|
viewportDimension: size.height,
|
|
axisDirection: AxisDirection.right,
|
|
);
|
|
painter.update(scrollMetrics, scrollMetrics.axisDirection);
|
|
|
|
expect(() => painter.paint(testCanvas, size), throwsA(isA<AssertionError>()));
|
|
});
|
|
|
|
testWidgets('RawScrollbar mainAxisMargin property works properly', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
mainAxisMargin: 10,
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(width: 1000.0, height: 1000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(rect: const Rect.fromLTRB(794.0, 10.0, 800.0, 358.0))
|
|
);
|
|
});
|
|
|
|
testWidgets('shape property of RawScrollbar can draw a BeveledRectangleBorder', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
shape: const BeveledRectangleBorder(
|
|
borderRadius: BorderRadius.all(Radius.circular(8.0))
|
|
),
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(height: 1000.0),
|
|
),
|
|
),
|
|
)));
|
|
await tester.pumpAndSettle();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..path(
|
|
includes: const <Offset>[
|
|
Offset(797.0, 0.0),
|
|
Offset(797.0, 18.0),
|
|
],
|
|
excludes: const <Offset>[
|
|
Offset(796.0, 0.0),
|
|
Offset(798.0, 0.0),
|
|
],
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('minThumbLength property of RawScrollbar is respected', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
minThumbLength: 21,
|
|
minOverscrollLength: 8,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(width: 1000.0, height: 50000.0),
|
|
),
|
|
),
|
|
)));
|
|
await tester.pumpAndSettle();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0)) // track
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 21.0))); // thumb
|
|
});
|
|
|
|
testWidgets('shape property of RawScrollbar can draw a CircleBorder', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
shape: const CircleBorder(side: BorderSide(width: 2.0)),
|
|
thickness: 36.0,
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(height: 1000.0, width: 1000),
|
|
),
|
|
),
|
|
)));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..path(
|
|
includes: const <Offset>[
|
|
Offset(782.0, 180.0),
|
|
Offset(782.0, 180.0 - 18.0),
|
|
Offset(782.0 + 18.0, 180),
|
|
Offset(782.0, 180.0 + 18.0),
|
|
Offset(782.0 - 18.0, 180),
|
|
],
|
|
)
|
|
..circle(x: 782.0, y: 180.0, radius: 17.0, strokeWidth: 2.0)
|
|
);
|
|
});
|
|
|
|
testWidgets('crossAxisMargin property of RawScrollbar is respected', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
crossAxisMargin: 30,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(width: 1000.0, height: 1000.0),
|
|
),
|
|
),
|
|
)));
|
|
await tester.pumpAndSettle();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(734.0, 0.0, 800.0, 600.0))
|
|
..rect(rect: const Rect.fromLTRB(764.0, 0.0, 770.0, 360.0)));
|
|
});
|
|
|
|
testWidgets('shape property of RawScrollbar can draw a RoundedRectangleBorder', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
thickness: 20,
|
|
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.only(topLeft: Radius.circular(8))),
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(height: 1000.0, width: 1000.0),
|
|
),
|
|
),
|
|
)));
|
|
await tester.pumpAndSettle();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(780.0, 0.0, 800.0, 600.0))
|
|
..path(
|
|
includes: const <Offset>[
|
|
Offset(800.0, 0.0),
|
|
],
|
|
excludes: const <Offset>[
|
|
Offset(780.0, 0.0),
|
|
],
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('minOverscrollLength property of RawScrollbar is respected', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
minOverscrollLength: 8.0,
|
|
minThumbLength: 36.0,
|
|
child: SingleChildScrollView(
|
|
physics: const BouncingScrollPhysics(),
|
|
controller: scrollController,
|
|
child: const SizedBox(height: 10000),
|
|
)
|
|
),
|
|
)
|
|
)
|
|
);
|
|
await tester.pumpAndSettle();
|
|
final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(RawScrollbar)));
|
|
await gesture.moveBy(const Offset(0, 1000));
|
|
await tester.pump();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 8.0)));
|
|
});
|
|
|
|
testWidgets('not passing any shape or radius to RawScrollbar will draw the usual rectangular thumb', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(height: 1000.0),
|
|
),
|
|
),
|
|
)));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 360.0))
|
|
);
|
|
});
|
|
|
|
testWidgets('The bar can show or hide when the viewport size change', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
Widget buildFrame(double height) {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: SizedBox(width: double.infinity, height: height)
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
await tester.pumpWidget(buildFrame(600.0));
|
|
await tester.pumpAndSettle();
|
|
expect(find.byType(RawScrollbar), isNot(paints..rect())); // Not shown.
|
|
|
|
await tester.pumpWidget(buildFrame(600.1));
|
|
await tester.pumpAndSettle();
|
|
expect(find.byType(RawScrollbar), paints..rect()); // Show the bar.
|
|
|
|
await tester.pumpWidget(buildFrame(600.0));
|
|
await tester.pumpAndSettle();
|
|
expect(find.byType(RawScrollbar), isNot(paints..rect())); // Hide the bar.
|
|
});
|
|
|
|
testWidgets('The bar can show or hide when the view size change', (WidgetTester tester) async {
|
|
addTearDown(tester.view.reset);
|
|
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
Widget buildFrame() {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(
|
|
width: double.infinity,
|
|
height: 600.0,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
tester.view.physicalSize = const Size(800.0, 600.0);
|
|
tester.view.devicePixelRatio = 1;
|
|
|
|
await tester.pumpWidget(buildFrame());
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(find.byType(RawScrollbar), isNot(paints..rect())); // Not shown.
|
|
|
|
tester.view.physicalSize = const Size(800.0, 599.0);
|
|
await tester.pumpAndSettle();
|
|
expect(find.byType(RawScrollbar), paints..rect()..rect()); // Show the bar.
|
|
|
|
tester.view.physicalSize = const Size(800.0, 600.0);
|
|
await tester.pumpAndSettle();
|
|
expect(find.byType(RawScrollbar), isNot(paints..rect())); // Not shown.
|
|
});
|
|
|
|
testWidgets('Scrollbar will not flip axes based on notification is there is a scroll controller', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/87697
|
|
final ScrollController verticalScrollController = ScrollController();
|
|
addTearDown(verticalScrollController.dispose);
|
|
final ScrollController horizontalScrollController = ScrollController();
|
|
addTearDown(horizontalScrollController.dispose);
|
|
Widget buildFrame() {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: verticalScrollController,
|
|
// This scrollbar will receive scroll notifications from both nested
|
|
// scroll views of opposite axes, but should stay on the vertical
|
|
// axis that its scroll controller is associated with.
|
|
notificationPredicate: (ScrollNotification notification) => notification.depth <= 1,
|
|
child: SingleChildScrollView(
|
|
controller: verticalScrollController,
|
|
child: SingleChildScrollView(
|
|
scrollDirection: Axis.horizontal,
|
|
controller: horizontalScrollController,
|
|
child: const SizedBox(
|
|
width: 1000.0,
|
|
height: 1000.0,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(buildFrame());
|
|
await tester.pumpAndSettle();
|
|
expect(verticalScrollController.offset, 0.0);
|
|
expect(horizontalScrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 360.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Move the horizontal scroll view. The vertical scrollbar should not flip.
|
|
horizontalScrollController.jumpTo(10.0);
|
|
expect(verticalScrollController.offset, 0.0);
|
|
expect(horizontalScrollController.offset, 10.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 360.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('notificationPredicate depth test.', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
final List<int> depths = <int>[];
|
|
Widget buildFrame() {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
notificationPredicate: (ScrollNotification notification) {
|
|
depths.add(notification.depth);
|
|
return notification.depth == 0;
|
|
},
|
|
controller: scrollController,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
await tester.pumpWidget(buildFrame());
|
|
await tester.pumpAndSettle();
|
|
|
|
// `notificationPredicate` should be called twice with different `depth`
|
|
// because there are two scrollable widgets.
|
|
expect(depths.length, 2);
|
|
expect(depths[0], 1);
|
|
expect(depths[1], 0);
|
|
});
|
|
|
|
// Regression test for https://github.com/flutter/flutter/issues/92262
|
|
testWidgets('Do not crash when resize from scrollable to non-scrollable.', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
Widget buildFrame(double height) {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
interactive: true,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: Container(
|
|
width: 100.0,
|
|
height: height,
|
|
color: const Color(0xFF000000),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
await tester.pumpWidget(buildFrame(700.0));
|
|
await tester.pumpAndSettle();
|
|
|
|
await tester.pumpWidget(buildFrame(600.0));
|
|
await tester.pumpAndSettle();
|
|
|
|
// Try to drag the thumb.
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(798.0, 5.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, 5.0));
|
|
await tester.pumpAndSettle();
|
|
});
|
|
|
|
testWidgets('Scrollbar thumb can be dragged when the scrollable widget has a negative minScrollExtent - desktop', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/95840
|
|
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
final UniqueKey uniqueKey = UniqueKey();
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: ScrollConfiguration(
|
|
behavior: const ScrollBehavior().copyWith(
|
|
scrollbars: false,
|
|
),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: CustomScrollView(
|
|
primary: true,
|
|
center: uniqueKey,
|
|
slivers: <Widget>[
|
|
SliverToBoxAdapter(
|
|
child: Container(
|
|
height: 600.0,
|
|
),
|
|
),
|
|
SliverToBoxAdapter(
|
|
key: uniqueKey,
|
|
child: Container(
|
|
height: 600.0,
|
|
),
|
|
),
|
|
SliverToBoxAdapter(
|
|
child: Container(
|
|
height: 600.0,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 200.0, 800.0, 400.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Drag the thumb up to scroll up.
|
|
const double scrollAmount = -10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 300.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
// The view has scrolled more than it would have by a swipe gesture of the
|
|
// same distance.
|
|
expect(scrollController.offset, lessThan(scrollAmount * 2));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 190.0, 800.0, 390.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
}, variant: TargetPlatformVariant.desktop());
|
|
|
|
testWidgets('Scrollbar thumb can be dragged when the scrollable widget has a negative minScrollExtent - mobile', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/95840
|
|
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
final UniqueKey uniqueKey = UniqueKey();
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: ScrollConfiguration(
|
|
behavior: const ScrollBehavior().copyWith(
|
|
scrollbars: false,
|
|
),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: CustomScrollView(
|
|
center: uniqueKey,
|
|
slivers: <Widget>[
|
|
SliverToBoxAdapter(
|
|
child: Container(
|
|
height: 600.0,
|
|
),
|
|
),
|
|
SliverToBoxAdapter(
|
|
key: uniqueKey,
|
|
child: Container(
|
|
height: 600.0,
|
|
),
|
|
),
|
|
SliverToBoxAdapter(
|
|
child: Container(
|
|
height: 600.0,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 200.0, 800.0, 400.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
|
|
// Drag the thumb up to scroll up.
|
|
const double scrollAmount = -10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 300.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
// The view has scrolled more than it would have by a swipe gesture of the
|
|
// same distance.
|
|
expect(scrollController.offset, lessThan(scrollAmount * 2));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 190.0, 800.0, 390.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
}, variant: TargetPlatformVariant.mobile());
|
|
|
|
test('ScrollbarPainter.shouldRepaint returns true when any of the properties changes', () {
|
|
ScrollbarPainter createPainter({
|
|
Color color = const Color(0xFF000000),
|
|
Animation<double> fadeoutOpacityAnimation = kAlwaysCompleteAnimation,
|
|
Color trackColor = const Color(0x00000000),
|
|
Color trackBorderColor = const Color(0x00000000),
|
|
TextDirection textDirection = TextDirection.ltr,
|
|
double thickness = _kThickness,
|
|
EdgeInsets padding = EdgeInsets.zero,
|
|
double mainAxisMargin = 0.0,
|
|
double crossAxisMargin = 0.0,
|
|
Radius? radius,
|
|
Radius? trackRadius,
|
|
OutlinedBorder? shape,
|
|
double minLength = _kMinThumbExtent,
|
|
double? minOverscrollLength,
|
|
ScrollbarOrientation scrollbarOrientation = ScrollbarOrientation.top,
|
|
}) {
|
|
return ScrollbarPainter(
|
|
color: color,
|
|
fadeoutOpacityAnimation: fadeoutOpacityAnimation,
|
|
trackColor: trackColor,
|
|
trackBorderColor: trackBorderColor,
|
|
textDirection: textDirection,
|
|
thickness: thickness,
|
|
padding: padding,
|
|
mainAxisMargin: mainAxisMargin,
|
|
crossAxisMargin: crossAxisMargin,
|
|
radius: radius,
|
|
trackRadius: trackRadius,
|
|
shape: shape,
|
|
minLength: minLength,
|
|
minOverscrollLength: minOverscrollLength,
|
|
scrollbarOrientation: scrollbarOrientation,
|
|
);
|
|
}
|
|
final ScrollbarPainter painter = createPainter();
|
|
expect(painter.shouldRepaint(createPainter()), false);
|
|
expect(painter.shouldRepaint(createPainter(color: const Color(0xFFFFFFFF))), true);
|
|
expect(painter.shouldRepaint(createPainter(fadeoutOpacityAnimation: kAlwaysDismissedAnimation)), true);
|
|
expect(painter.shouldRepaint(createPainter(trackColor: const Color(0xFFFFFFFF))), true);
|
|
expect(painter.shouldRepaint(createPainter(trackBorderColor: const Color(0xFFFFFFFF))), true);
|
|
expect(painter.shouldRepaint(createPainter(textDirection: TextDirection.rtl)), true);
|
|
expect(painter.shouldRepaint(createPainter(thickness: _kThickness + 1.0)), true);
|
|
expect(painter.shouldRepaint(createPainter(padding: const EdgeInsets.all(1.0))), true);
|
|
expect(painter.shouldRepaint(createPainter(mainAxisMargin: 1.0)), true);
|
|
expect(painter.shouldRepaint(createPainter(crossAxisMargin: 1.0)), true);
|
|
expect(painter.shouldRepaint(createPainter(radius: const Radius.circular(1.0))), true);
|
|
expect(painter.shouldRepaint(createPainter(trackRadius: const Radius.circular(1.0))), true);
|
|
expect(painter.shouldRepaint(createPainter(shape: const CircleBorder(side: BorderSide(width: 2.0)))), true);
|
|
expect(painter.shouldRepaint(createPainter(minLength: _kMinThumbExtent + 1.0)), true);
|
|
expect(painter.shouldRepaint(createPainter(minOverscrollLength: 1.0)), true);
|
|
expect(painter.shouldRepaint(createPainter(scrollbarOrientation: ScrollbarOrientation.bottom)), true);
|
|
});
|
|
|
|
testWidgets('Scrollbar track can be drawn', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
trackVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0x08000000),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0x1a000000),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('RawScrollbar correctly assigns colors', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
thumbColor: const Color(0xFFF44336),
|
|
trackVisibility: true,
|
|
trackColor: const Color(0xFF2196F3),
|
|
trackBorderColor: const Color(0xFFFFEB3B),
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0),
|
|
color: const Color(0xFF2196F3),
|
|
)
|
|
..line(
|
|
p1: const Offset(794.0, 0.0),
|
|
p2: const Offset(794.0, 600.0),
|
|
strokeWidth: 1.0,
|
|
color: const Color(0xFFFFEB3B),
|
|
)
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 90.0),
|
|
color: const Color(0xFFF44336),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('trackRadius and radius properties of RawScrollbar can draw RoundedRectangularRect', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
trackVisibility: true,
|
|
trackRadius: const Radius.circular(1.0),
|
|
radius: const Radius.circular(2.0),
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rrect(
|
|
rrect: RRect.fromLTRBR(794.0, 0.0, 800.0, 600.0, const Radius.circular(1.0)),
|
|
color: const Color(0x08000000),
|
|
)
|
|
..rrect(
|
|
rrect: RRect.fromLTRBR(794.0, 0.0, 800.0, 90.0, const Radius.circular(2.0)),
|
|
color: const Color(0x66bcbcbc),
|
|
)
|
|
);
|
|
});
|
|
|
|
testWidgets('Scrollbar asserts that a visible track has a visible thumb', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
Widget buildApp() {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: false,
|
|
trackVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
expect(() => tester.pumpWidget(buildApp()), throwsAssertionError);
|
|
});
|
|
|
|
testWidgets('Skip the ScrollPosition check if the bar was unmounted', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/103939
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
Widget buildApp(bool buildBar) {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: MediaQueryData(
|
|
invertColors: buildBar, // Trigger a post frame check before unmount.
|
|
),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: LayoutBuilder(
|
|
builder: (BuildContext context, BoxConstraints constraints) {
|
|
Widget content = const SingleChildScrollView(
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
);
|
|
if (buildBar) {
|
|
content = RawScrollbar(
|
|
thumbVisibility: true,
|
|
child: content,
|
|
);
|
|
}
|
|
return content;
|
|
},
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(buildApp(true));
|
|
|
|
await tester.pumpWidget(buildApp(false));
|
|
|
|
// Go without throw.
|
|
});
|
|
|
|
testWidgets('Track offset respects MediaQuery padding', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/106834
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(
|
|
padding: EdgeInsets.all(50.0),
|
|
),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
minThumbLength: 21,
|
|
minOverscrollLength: 8,
|
|
thumbVisibility: true,
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(width: 1000.0, height: 50000.0),
|
|
),
|
|
),
|
|
)
|
|
)
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(744.0, 50.0, 750.0, 550.0)) // track
|
|
..rect(rect: const Rect.fromLTRB(744.0, 50.0, 750.0, 71.0)) // thumb
|
|
); // thumb
|
|
});
|
|
|
|
testWidgets('RawScrollbar.padding replaces MediaQueryData.padding', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(
|
|
padding: EdgeInsets.all(50.0),
|
|
),
|
|
child: RawScrollbar(
|
|
controller: scrollController,
|
|
minThumbLength: 21,
|
|
minOverscrollLength: 8,
|
|
thumbVisibility: true,
|
|
padding: const EdgeInsets.all(100),
|
|
child: SingleChildScrollView(
|
|
controller: scrollController,
|
|
child: const SizedBox(width: 1000.0, height: 50000.0),
|
|
),
|
|
),
|
|
)
|
|
)
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(694.0, 100.0, 700.0, 500.0)) // track
|
|
..rect(rect: const Rect.fromLTRB(694.0, 100.0, 700.0, 121.0)) // thumb
|
|
); // thumb
|
|
});
|
|
|
|
testWidgets('Scrollbar respect the NeverScrollableScrollPhysics physics', (WidgetTester tester) async {
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
physics: NeverScrollableScrollPhysics(),
|
|
child: SizedBox(width: 4000.0, height: 4000.0),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
|
|
// Drag the thumb down to scroll down.
|
|
const double scrollAmount = 10.0;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 45.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, 0.0);
|
|
|
|
// Tap on the track area below the thumb.
|
|
await tester.tapAt(const Offset(797.0, 550.0));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, 0.0);
|
|
});
|
|
|
|
testWidgets('The thumb should follow the pointer when the scroll metrics changed during dragging', (WidgetTester tester) async {
|
|
// Regressing test for https://github.com/flutter/flutter/issues/112072
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: CustomScrollView(
|
|
controller: scrollController,
|
|
slivers: <Widget>[
|
|
SliverList(
|
|
delegate: SliverChildBuilderDelegate(
|
|
(BuildContext context, int index) {
|
|
final double height;
|
|
if (index < 10) {
|
|
height = 100;
|
|
} else {
|
|
height = 500;
|
|
}
|
|
return SizedBox(
|
|
height: height,
|
|
child: Text('$index'),
|
|
);
|
|
},
|
|
childCount: 100,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
|
|
// Drag the thumb down to scroll down.
|
|
const double scrollAmount = 100;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 5.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
// The view has scrolled more than it would have by a swipe gesture of the
|
|
// same distance.
|
|
expect(scrollController.offset, greaterThan((100.0 * 10 + 500.0 * 90) / 3));
|
|
expect(
|
|
find.byType(RawScrollbar),
|
|
paints
|
|
..rect(rect: const Rect.fromLTRB(794.0, 0.0, 800.0, 600.0))
|
|
..rect(
|
|
rect: const Rect.fromLTRB(794.0, 200.0, 800.0, 218.0),
|
|
color: const Color(0x66BCBCBC),
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('The scrollable should not stutter when the scroll metrics shrink during dragging', (WidgetTester tester) async {
|
|
// Regressing test for https://github.com/flutter/flutter/issues/121574
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: CustomScrollView(
|
|
controller: scrollController,
|
|
slivers: <Widget>[
|
|
SliverList(
|
|
delegate: SliverChildBuilderDelegate(
|
|
(BuildContext context, int index) {
|
|
final double height;
|
|
if (index < 10) {
|
|
height = 500;
|
|
} else {
|
|
height = 100;
|
|
}
|
|
return SizedBox(
|
|
height: height,
|
|
child: Text('$index'),
|
|
);
|
|
},
|
|
childCount: 100,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
|
|
// Drag the thumb down to scroll down.
|
|
const double scrollAmount = 100;
|
|
final TestGesture dragScrollbarGesture = await tester.startGesture(const Offset(797.0, 5.0));
|
|
await tester.pumpAndSettle();
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
final double lastPosition = scrollController.offset;
|
|
// The view has scrolled more than it would have by a swipe gesture of the
|
|
// same distance.
|
|
expect(lastPosition, greaterThan((100.0 * 10 + 500.0 * 90) / 6));
|
|
|
|
await dragScrollbarGesture.moveBy(const Offset(0.0, scrollAmount));
|
|
await tester.pumpAndSettle();
|
|
|
|
await dragScrollbarGesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, greaterThan(lastPosition));
|
|
});
|
|
|
|
testWidgets('The bar supports mouse wheel event', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/pull/109659
|
|
final ScrollController scrollController = ScrollController();
|
|
addTearDown(scrollController.dispose);
|
|
Widget buildFrame() {
|
|
return Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: MediaQuery(
|
|
data: const MediaQueryData(),
|
|
child: PrimaryScrollController(
|
|
controller: scrollController,
|
|
child: RawScrollbar(
|
|
thumbVisibility: true,
|
|
controller: scrollController,
|
|
child: const SingleChildScrollView(
|
|
primary: true,
|
|
child: SizedBox(
|
|
width: double.infinity,
|
|
height: 1200.0,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(buildFrame());
|
|
await tester.pumpAndSettle();
|
|
expect(scrollController.offset, 0.0);
|
|
|
|
// Execute a pointer scroll hover on the scroll bar
|
|
final TestPointer pointer = TestPointer(1, ui.PointerDeviceKind.mouse);
|
|
pointer.hover(const Offset(798.0, 15.0));
|
|
await tester.sendEventToBinding(pointer.scroll(const Offset(0.0, 30.0)));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, 30.0);
|
|
|
|
// Execute a pointer scroll outside the scroll bar
|
|
pointer.hover(const Offset(198.0, 15.0));
|
|
await tester.sendEventToBinding(pointer.scroll(const Offset(0.0, 70.0)));
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(scrollController.offset, 100.0);
|
|
}, variant: TargetPlatformVariant.all());
|
|
}
|