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_ASSET_MANAGER_H_
6#define FLUTTER_ASSETS_ASSET_MANAGER_H_
7
8#include <deque>
9#include <memory>
10#include <string>
11
12#include "flutter/assets/asset_resolver.h"
13#include "flutter/fml/macros.h"
14#include "flutter/fml/memory/ref_counted.h"
15
16namespace flutter {
17
18class AssetManager final : public AssetResolver {
19 public:
20 AssetManager();
21
22 ~AssetManager() override;
23
24 void PushFront(std::unique_ptr<AssetResolver> resolver);
25
26 void PushBack(std::unique_ptr<AssetResolver> resolver);
27
28 // |AssetResolver|
29 bool IsValid() const override;
30
31 // |AssetResolver|
32 std::unique_ptr<fml::Mapping> GetAsMapping(
33 const std::string& asset_name) const override;
34
35 private:
36 std::deque<std::unique_ptr<AssetResolver>> resolvers_;
37
38 FML_DISALLOW_COPY_AND_ASSIGN(AssetManager);
39};
40
41} // namespace flutter
42
43#endif // FLUTTER_ASSETS_ASSET_MANAGER_H_
44