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 | #include "flutter/assets/directory_asset_bundle.h" |
6 | |
7 | #include <utility> |
8 | |
9 | #include "flutter/fml/eintr_wrapper.h" |
10 | #include "flutter/fml/file.h" |
11 | #include "flutter/fml/mapping.h" |
12 | |
13 | namespace flutter { |
14 | |
15 | DirectoryAssetBundle::DirectoryAssetBundle(fml::UniqueFD descriptor) |
16 | : descriptor_(std::move(descriptor)) { |
17 | if (!fml::IsDirectory(descriptor_)) { |
18 | return; |
19 | } |
20 | is_valid_ = true; |
21 | } |
22 | |
23 | DirectoryAssetBundle::~DirectoryAssetBundle() = default; |
24 | |
25 | // |AssetResolver| |
26 | bool DirectoryAssetBundle::IsValid() const { |
27 | return is_valid_; |
28 | } |
29 | |
30 | // |AssetResolver| |
31 | std::unique_ptr<fml::Mapping> DirectoryAssetBundle::GetAsMapping( |
32 | const std::string& asset_name) const { |
33 | if (!is_valid_) { |
34 | FML_DLOG(WARNING) << "Asset bundle was not valid."; |
35 | return nullptr; |
36 | } |
37 | |
38 | auto mapping = std::make_unique<fml::FileMapping>(fml::OpenFile( |
39 | descriptor_, asset_name.c_str(), false, fml::FilePermission::kRead)); |
40 | |
41 | if (!mapping->IsValid()) { |
42 | return nullptr; |
43 | } |
44 | |
45 | return mapping; |
46 | } |
47 | |
48 | } // namespace flutter |
49 |