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15c587404c
Follow up from #21436 . That PR works for all embeddings except for Android, which creates a special JNI AssetResolver. Since the shell cannot recreate this resolver, update the logic to preserve existing resolvers instead.
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// 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"
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#include "flutter/fml/trace_event.h"
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namespace flutter {
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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) {
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if (resolver == nullptr || !resolver->IsValid()) {
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return;
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}
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resolvers_.push_front(std::move(resolver));
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}
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void AssetManager::PushBack(std::unique_ptr<AssetResolver> resolver) {
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if (resolver == nullptr || !resolver->IsValid()) {
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return;
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}
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resolvers_.push_back(std::move(resolver));
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}
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std::deque<std::unique_ptr<AssetResolver>> AssetManager::TakeResolvers() {
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return std::move(resolvers_);
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}
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// |AssetResolver|
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std::unique_ptr<fml::Mapping> AssetManager::GetAsMapping(
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const std::string& asset_name) const {
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if (asset_name.size() == 0) {
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return nullptr;
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}
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TRACE_EVENT1("flutter", "AssetManager::GetAsMapping", "name",
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asset_name.c_str());
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for (const auto& resolver : resolvers_) {
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auto mapping = resolver->GetAsMapping(asset_name);
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if (mapping != nullptr) {
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return mapping;
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}
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}
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FML_DLOG(WARNING) << "Could not find asset: " << asset_name;
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return nullptr;
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}
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// |AssetResolver|
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bool AssetManager::IsValid() const {
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return resolvers_.size() > 0;
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}
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// |AssetResolver|
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bool AssetManager::IsValidAfterAssetManagerChange() const {
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return false;
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}
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} // namespace flutter
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