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// Copyright 2017 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. | ||
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#include "flutter/assets/asset_manager.h" | ||
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#include "flutter/assets/directory_asset_bundle.h" | ||
#include "flutter/assets/zip_asset_store.h" | ||
#include "flutter/glue/trace_event.h" | ||
#include "lib/fxl/files/path.h" | ||
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#ifdef ERROR | ||
#undef ERROR | ||
#endif | ||
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namespace blink { | ||
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AssetManager::AssetManager() = default; | ||
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AssetManager::~AssetManager() = default; | ||
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void AssetManager::PushFront(std::unique_ptr<AssetResolver> resolver) { | ||
if (resolver == nullptr || !resolver->IsValid()) { | ||
return; | ||
} | ||
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resolvers_.push_front(std::move(resolver)); | ||
} | ||
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void AssetManager::PushBack(std::unique_ptr<AssetResolver> resolver) { | ||
if (resolver == nullptr || !resolver->IsValid()) { | ||
return; | ||
} | ||
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resolvers_.push_back(std::move(resolver)); | ||
} | ||
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// |blink::AssetResolver| | ||
bool AssetManager::GetAsBuffer(const std::string& asset_name, | ||
std::vector<uint8_t>* data) const { | ||
if (asset_name.size() == 0) { | ||
return false; | ||
} | ||
TRACE_EVENT0("flutter", "AssetManager::GetAsBuffer"); | ||
for (const auto& resolver : resolvers_) { | ||
if (resolver->GetAsBuffer(asset_name, data)) { | ||
return true; | ||
} | ||
} | ||
FXL_DLOG(ERROR) << "Could not find asset: " << asset_name; | ||
return false; | ||
} | ||
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// |blink::AssetResolver| | ||
bool AssetManager::IsValid() const { | ||
return resolvers_.size() > 0; | ||
} | ||
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} // namespace blink |
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// Copyright 2017 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. | ||
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#ifndef FLUTTER_ASSETS_ASSET_MANAGER_H_ | ||
#define FLUTTER_ASSETS_ASSET_MANAGER_H_ | ||
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#include <deque> | ||
#include <memory> | ||
#include <string> | ||
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#include "flutter/assets/asset_resolver.h" | ||
#include "lib/fxl/files/unique_fd.h" | ||
#include "lib/fxl/macros.h" | ||
#include "lib/fxl/memory/ref_counted.h" | ||
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namespace blink { | ||
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class AssetManager final : public AssetResolver, | ||
public fxl::RefCountedThreadSafe<AssetManager> { | ||
public: | ||
void PushFront(std::unique_ptr<AssetResolver> resolver); | ||
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void PushBack(std::unique_ptr<AssetResolver> resolver); | ||
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// |blink::AssetResolver| | ||
bool IsValid() const override; | ||
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// |blink::AssetResolver| | ||
bool GetAsBuffer(const std::string& asset_name, | ||
std::vector<uint8_t>* data) const override; | ||
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private: | ||
std::deque<std::unique_ptr<AssetResolver>> resolvers_; | ||
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AssetManager(); | ||
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~AssetManager(); | ||
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FXL_DISALLOW_COPY_AND_ASSIGN(AssetManager); | ||
FRIEND_MAKE_REF_COUNTED(AssetManager); | ||
FRIEND_REF_COUNTED_THREAD_SAFE(AssetManager); | ||
}; | ||
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} // namespace blink | ||
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#endif // FLUTTER_ASSETS_ASSET_MANAGER_H_ |
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// Copyright 2017 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. | ||
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#ifndef FLUTTER_ASSETS_ASSET_RESOLVER_H_ | ||
#define FLUTTER_ASSETS_ASSET_RESOLVER_H_ | ||
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#include <string> | ||
#include <vector> | ||
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#include "lib/fxl/macros.h" | ||
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namespace blink { | ||
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class AssetResolver { | ||
public: | ||
AssetResolver() = default; | ||
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virtual ~AssetResolver() = default; | ||
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virtual bool IsValid() const = 0; | ||
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virtual bool GetAsBuffer(const std::string& asset_name, | ||
std::vector<uint8_t>* data) const = 0; | ||
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private: | ||
FXL_DISALLOW_COPY_AND_ASSIGN(AssetResolver); | ||
}; | ||
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} // namespace blink | ||
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#endif // FLUTTER_ASSETS_ASSET_RESOLVER_H_ |
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