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bbc0161669
* Remove references to dart:ui.Window, and point usages to PlatformDispatcher or SingletonFlutterWindow, as appropriate * remove new test platform dispatchers * Amend documentation
90 lines
2.6 KiB
Dart
90 lines
2.6 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 'deserialization_factory.dart';
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import 'enum_util.dart';
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import 'find.dart';
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import 'message.dart';
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/// Offset types that can be requested by [GetOffset].
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enum OffsetType {
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/// The top left point.
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topLeft,
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/// The top right point.
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topRight,
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/// The bottom left point.
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bottomLeft,
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/// The bottom right point.
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bottomRight,
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/// The center point.
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center,
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}
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EnumIndex<OffsetType> _offsetTypeIndex = EnumIndex<OffsetType>(OffsetType.values);
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/// A Flutter Driver command that returns the [offsetType] from the RenderObject
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/// identified by [finder].
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///
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/// The requested offset is returned in logical pixels, which can be translated
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/// to device pixels via [dart:ui.FlutterView.devicePixelRatio].
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class GetOffset extends CommandWithTarget {
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/// The `finder` looks for an element to get its rect.
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GetOffset(SerializableFinder finder, this.offsetType, { Duration? timeout }) : super(finder, timeout: timeout);
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/// Deserializes this command from the value generated by [serialize].
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GetOffset.deserialize(Map<String, String> json, DeserializeFinderFactory finderFactory)
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: offsetType = _offsetTypeIndex.lookupBySimpleName(json['offsetType']!),
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super.deserialize(json, finderFactory);
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@override
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Map<String, String> serialize() => super.serialize()..addAll(<String, String>{
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'offsetType': _offsetTypeIndex.toSimpleName(offsetType),
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});
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/// The type of the requested offset.
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final OffsetType offsetType;
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@override
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String get kind => 'get_offset';
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}
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/// The result of the [GetOffset] command.
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///
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/// The offset is provided in logical pixels, which can be translated
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/// to device pixels via [dart:ui.FlutterView.devicePixelRatio].
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class GetOffsetResult extends Result {
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/// Creates a result with the offset defined by [dx] and [dy].
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const GetOffsetResult({ this.dx = 0.0, this.dy = 0.0});
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/// The x component of the offset in logical pixels.
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///
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/// The value can be translated to device pixels via
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/// [dart:ui.FlutterView.devicePixelRatio].
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final double dx;
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/// The y component of the offset in logical pixels.
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///
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/// The value can be translated to device pixels via
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/// [dart:ui.FlutterView.devicePixelRatio].
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final double dy;
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/// Deserializes the result from JSON.
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static GetOffsetResult fromJson(Map<String, dynamic> json) {
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return GetOffsetResult(
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dx: json['dx'] as double,
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dy: json['dy'] as double,
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);
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}
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@override
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Map<String, dynamic> toJson() => <String, double>{
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'dx': dx,
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'dy': dy,
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};
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}
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