1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
// 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:async';
import 'dart:ui' as ui;
import 'package:flutter/foundation.dart';
import 'package:flutter/painting.dart';
class TestImageProvider extends ImageProvider<TestImageProvider> {
TestImageProvider(this.testImage);
final ui.Image testImage;
final Completer<ImageInfo> _completer = Completer<ImageInfo>.sync();
ImageConfiguration? configuration;
int loadCallCount = 0;
@override
Future<TestImageProvider> obtainKey(ImageConfiguration configuration) {
return SynchronousFuture<TestImageProvider>(this);
}
@override
void resolveStreamForKey(ImageConfiguration config, ImageStream stream, TestImageProvider key, ImageErrorListener handleError) {
configuration = config;
super.resolveStreamForKey(config, stream, key, handleError);
}
@override
ImageStreamCompleter load(TestImageProvider key, DecoderCallback decode) {
loadCallCount += 1;
return OneFrameImageStreamCompleter(_completer.future);
}
ImageInfo complete() {
final ImageInfo imageInfo = ImageInfo(image: testImage);
_completer.complete(imageInfo);
return imageInfo;
}
@override
String toString() => '${describeIdentity(this)}()';
}
class FakeImageConfiguration implements ImageConfiguration {
@override
dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}