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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_FILESYSTEM_FILE_SYSTEM_DISPATCHER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_FILESYSTEM_FILE_SYSTEM_DISPATCHER_H_
#include <memory>
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "third_party/blink/public/mojom/filesystem/file_system.mojom-blink.h"
#include "third_party/blink/renderer/modules/filesystem/file_system_callbacks.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_unique_receiver_set.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace WTF {
class String;
}
namespace blink {
class KURL;
class ExecutionContext;
class SecurityOrigin;
// Sends messages via mojo to the blink::mojom::FileSystemManager service
// running in the browser process. It is owned by ExecutionContext, and
// instances are created lazily by calling FileSystemDispatcher::From().
class FileSystemDispatcher : public GarbageCollected<FileSystemDispatcher>,
public Supplement<ExecutionContext> {
USING_GARBAGE_COLLECTED_MIXIN(FileSystemDispatcher);
USING_PRE_FINALIZER(FileSystemDispatcher, Prefinalize);
public:
using StatusCallback = base::OnceCallback<void(base::File::Error error)>;
using WriteCallback =
base::RepeatingCallback<void(int64_t bytes, bool complete)>;
static const char kSupplementName[];
static FileSystemDispatcher& From(ExecutionContext* context);
explicit FileSystemDispatcher(ExecutionContext& context);
virtual ~FileSystemDispatcher();
mojom::blink::FileSystemManager& GetFileSystemManager();
void OpenFileSystem(const SecurityOrigin* origin,
mojom::blink::FileSystemType type,
std::unique_ptr<FileSystemCallbacks> callbacks);
void OpenFileSystemSync(const SecurityOrigin* origin,
mojom::blink::FileSystemType type,
std::unique_ptr<FileSystemCallbacks> callbacks);
void ResolveURL(const KURL& filesystem_url,
std::unique_ptr<ResolveURICallbacks> callbacks);
void ResolveURLSync(const KURL& filesystem_url,
std::unique_ptr<ResolveURICallbacks> callbacks);
void Move(const KURL& src_path,
const KURL& dest_path,
std::unique_ptr<EntryCallbacks> callbacks);
void MoveSync(const KURL& src_path,
const KURL& dest_path,
std::unique_ptr<EntryCallbacks> callbacks);
void Copy(const KURL& src_path,
const KURL& dest_path,
std::unique_ptr<EntryCallbacks> callbacks);
void CopySync(const KURL& src_path,
const KURL& dest_path,
std::unique_ptr<EntryCallbacks> callbacks);
void Remove(const KURL& path,
bool recursive,
std::unique_ptr<VoidCallbacks> callbacks);
void RemoveSync(const KURL& path,
bool recursive,
std::unique_ptr<VoidCallbacks> callbacks);
void ReadMetadata(const KURL& path,
std::unique_ptr<MetadataCallbacks> callbacks);
void ReadMetadataSync(const KURL& path,
std::unique_ptr<MetadataCallbacks> callbacks);
void CreateFile(const KURL& path,
bool exclusive,
std::unique_ptr<EntryCallbacks> callbacks);
void CreateFileSync(const KURL& path,
bool exclusive,
std::unique_ptr<EntryCallbacks> callbacks);
void CreateDirectory(const KURL& path,
bool exclusive,
bool recursive,
std::unique_ptr<EntryCallbacks> callbacks);
void CreateDirectorySync(const KURL& path,
bool exclusive,
bool recursive,
std::unique_ptr<EntryCallbacks> callbacks);
void Exists(const KURL& path,
bool for_directory,
std::unique_ptr<EntryCallbacks> callbacks);
void ExistsSync(const KURL& path,
bool for_directory,
std::unique_ptr<EntryCallbacks> callbacks);
void ReadDirectory(const KURL& path,
std::unique_ptr<EntriesCallbacks> callbacks);
void ReadDirectorySync(const KURL& path,
std::unique_ptr<EntriesCallbacks> callbacks);
void InitializeFileWriter(const KURL& path,
std::unique_ptr<FileWriterCallbacks>);
void InitializeFileWriterSync(const KURL& path,
std::unique_ptr<FileWriterCallbacks>);
void Truncate(const KURL& path,
int64_t offset,
int* request_id_out,
StatusCallback callback);
void TruncateSync(const KURL& path, int64_t offset, StatusCallback callback);
void Write(const KURL& path,
const String& blob_id,
int64_t offset,
int* request_id_out,
const WriteCallback& success_callback,
StatusCallback error_callback);
void WriteSync(const KURL& path,
const String& blob_id,
int64_t offset,
const WriteCallback& success_callback,
StatusCallback error_callback);
void Cancel(int request_id_to_cancel, StatusCallback callback);
void CreateSnapshotFile(const KURL& file_path,
std::unique_ptr<SnapshotFileCallbackBase> callbacks);
void CreateSnapshotFileSync(
const KURL& file_path,
std::unique_ptr<SnapshotFileCallbackBase> callbacks);
void Trace(Visitor*) override;
private:
class WriteListener;
class ReadDirectoryListener;
void DidOpenFileSystem(std::unique_ptr<FileSystemCallbacks> callbacks,
const String& name,
const KURL& root,
base::File::Error error_code);
void DidResolveURL(std::unique_ptr<ResolveURICallbacks> callbacks,
mojom::blink::FileSystemInfoPtr info,
const base::FilePath& file_path,
bool is_directory,
base::File::Error error_code);
void DidRemove(std::unique_ptr<VoidCallbacks> callbacks,
base::File::Error error_code);
void DidFinish(std::unique_ptr<EntryCallbacks> callbacks,
base::File::Error error_code);
void DidReadMetadata(std::unique_ptr<MetadataCallbacks> callbacks,
const base::File::Info& file_info,
base::File::Error error);
void DidReadDirectory(
std::unique_ptr<EntriesCallbacks> callbacks,
Vector<filesystem::mojom::blink::DirectoryEntryPtr> entries,
base::File::Error error_code);
void InitializeFileWriterCallback(
const KURL& path,
std::unique_ptr<FileWriterCallbacks> callbacks,
const base::File::Info& file_info,
base::File::Error error);
void DidTruncate(int operation_id,
StatusCallback callback,
base::File::Error error_code);
void DidWrite(const WriteCallback& callback,
int operation_id,
int64_t bytes,
bool complete);
void WriteErrorCallback(StatusCallback callback,
int operation_id,
base::File::Error error);
void DidCancel(StatusCallback callback,
int cancelled_operation_id,
base::File::Error error_code);
void DidCreateSnapshotFile(
std::unique_ptr<SnapshotFileCallbackBase> callbacks,
const base::File::Info& file_info,
const base::FilePath& platform_path,
base::File::Error error_code,
mojo::PendingRemote<mojom::blink::ReceivedSnapshotListener> listener);
void RemoveOperationRemote(int operation_id);
void Prefinalize();
HeapMojoRemote<mojom::blink::FileSystemManager,
HeapMojoWrapperMode::kWithoutContextObserver>
file_system_manager_;
using OperationsMap =
HashMap<int, mojo::Remote<mojom::blink::FileSystemCancellableOperation>>;
OperationsMap cancellable_operations_;
int next_operation_id_;
HeapMojoUniqueReceiverSet<
mojom::blink::FileSystemOperationListener,
std::default_delete<mojom::blink::FileSystemOperationListener>,
HeapMojoWrapperMode::kWithoutContextObserver>
op_listeners_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_FILESYSTEM_FILE_SYSTEM_DISPATCHER_H_
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