1// Copyright 2013 The Flutter Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef FLUTTER_ASSETS_DIRECTORY_ASSET_BUNDLE_H_
6#define FLUTTER_ASSETS_DIRECTORY_ASSET_BUNDLE_H_
7
8#include <optional>
9#include "flutter/assets/asset_resolver.h"
10#include "flutter/fml/macros.h"
11#include "flutter/fml/memory/ref_counted.h"
12#include "flutter/fml/unique_fd.h"
13
14namespace flutter {
15
16class DirectoryAssetBundle : public AssetResolver {
17 public:
18 DirectoryAssetBundle(fml::UniqueFD descriptor,
19 bool is_valid_after_asset_manager_change);
20
21 ~DirectoryAssetBundle() override;
22
23 private:
24 const fml::UniqueFD descriptor_;
25 bool is_valid_ = false;
26 bool is_valid_after_asset_manager_change_ = false;
27
28 // |AssetResolver|
29 bool IsValid() const override;
30
31 // |AssetResolver|
32 bool IsValidAfterAssetManagerChange() const override;
33
34 // |AssetResolver|
35 AssetResolver::AssetResolverType GetType() const override;
36
37 // |AssetResolver|
38 std::unique_ptr<fml::Mapping> GetAsMapping(
39 const std::string& asset_name) const override;
40
41 // |AssetResolver|
42 std::vector<std::unique_ptr<fml::Mapping>> GetAsMappings(
43 const std::string& asset_pattern,
44 const std::optional<std::string>& subdir) const override;
45
46 FML_DISALLOW_COPY_AND_ASSIGN(DirectoryAssetBundle);
47};
48
49} // namespace flutter
50
51#endif // FLUTTER_ASSETS_DIRECTORY_ASSET_BUNDLE_H_
52

source code of flutter_engine/flutter/assets/directory_asset_bundle.h