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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_ARC_FILEAPI_ARC_DOCUMENTS_PROVIDER_ROOT_MAP_H_
#define CHROME_BROWSER_ASH_ARC_FILEAPI_ARC_DOCUMENTS_PROVIDER_ROOT_MAP_H_
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/files/file_path.h"
#include "base/memory/raw_ptr.h"
#include "components/keyed_service/core/keyed_service.h"
class Profile;
namespace content {
class BrowserContext;
} // namespace content
namespace storage {
class FileSystemURL;
} // namespace storage
namespace arc {
class ArcDocumentsProviderRoot;
class ArcFileSystemOperationRunner;
// Container of ArcDocumentsProviderRoot instances.
//
// All member function must be called on the UI thread.
class ArcDocumentsProviderRootMap : public KeyedService {
public:
// This constructor should not be used. It is public for the sake of
// compatibility with std::make_unique.
explicit ArcDocumentsProviderRootMap(Profile* profile);
ArcDocumentsProviderRootMap(const ArcDocumentsProviderRootMap&) = delete;
ArcDocumentsProviderRootMap& operator=(const ArcDocumentsProviderRootMap&) =
delete;
~ArcDocumentsProviderRootMap() override;
// Returns an instance for the given browser context, or nullptr if ARC is not
// allowed for the browser context.
static ArcDocumentsProviderRootMap* GetForBrowserContext(
content::BrowserContext* context);
// Returns an instance for the browser context associated with ARC, or nullptr
// if ARC is not allowed.
// TODO(nya): Remove this function when we support multi-user ARC. For now,
// it is okay to call this function only from ash::FileSystemBackend and
// its delegates.
static ArcDocumentsProviderRootMap* GetForArcBrowserContext();
// Looks up a root corresponding to |url|.
// |path| is set to the remaining path part of |url|.
// Returns nullptr if |url| is invalid or no corresponding root is registered.
ArcDocumentsProviderRoot* ParseAndLookup(const storage::FileSystemURL& url,
base::FilePath* path) const;
// Looks up a root by an authority and a root document ID.
ArcDocumentsProviderRoot* Lookup(const std::string& authority,
const std::string& root_id) const;
// Register a DocumentsProvider's Root to make the corresponding
// ArcDocumentsProviderRoot instance available.
void RegisterRoot(const std::string& authority,
const std::string& root_document_id,
const std::string& root_id,
bool read_only,
const std::vector<std::string>& mime_types);
// Unregister a DocumentsProvider's Root.
void UnregisterRoot(const std::string& authority, const std::string& root_id);
// KeyedService overrides:
void Shutdown() override;
private:
friend class ArcDocumentsProviderRootMapFactory;
// |runner_| outlives |this| and ArcDocumentsProviderRoot instances in |map_|
// as this service has explicit dependency on ArcFileSystemOperationRunner in
// the BrowserContextKeyedServiceFactory dependency graph.
const raw_ptr<ArcFileSystemOperationRunner> runner_;
// Key is (authority, root_id).
using Key = std::pair<std::string, std::string>;
std::map<Key, std::unique_ptr<ArcDocumentsProviderRoot>> map_;
};
} // namespace arc
#endif // CHROME_BROWSER_ASH_ARC_FILEAPI_ARC_DOCUMENTS_PROVIDER_ROOT_MAP_H_
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