blob: c352adaaab2dfe4008459c2dec67c581c6dc8b65 [file] [log] [blame]
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:ui' as ui show Codec;
import 'package:flutter/foundation.dart';
import 'package:flutter/painting.dart';
/// An image provider implementation for testing that is using a [ui.Codec]
/// that it was given at construction time (typically the job of real image
/// providers is to resolve some data and instantiate a [ui.Codec] from it).
class FakeImageProvider extends ImageProvider<FakeImageProvider> {
const FakeImageProvider(this._codec, { this.scale = 1.0 });
final ui.Codec _codec;
/// The scale to place in the [ImageInfo] object of the image.
final double scale;
Future<FakeImageProvider> obtainKey(ImageConfiguration configuration) {
return SynchronousFuture<FakeImageProvider>(this);
ImageStreamCompleter load(FakeImageProvider key, DecoderCallback decode) {
assert(key == this);
return MultiFrameImageStreamCompleter(
codec: SynchronousFuture<ui.Codec>(_codec),
scale: scale,