// Copyright (c) 2012 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 WEBKIT_FILEAPI_FILE_SYSTEM_OPERATION_CONTEXT_H_ #define WEBKIT_FILEAPI_FILE_SYSTEM_OPERATION_CONTEXT_H_ #include "base/memory/ref_counted.h" #include "base/memory/weak_ptr.h" #include "webkit/fileapi/file_system_context.h" #include "webkit/fileapi/media/mtp_device_file_system_config.h" #include "webkit/fileapi/task_runner_bound_observer_list.h" #include "webkit/storage/webkit_storage_export.h" #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) #include "webkit/fileapi/media/mtp_device_delegate.h" #endif namespace base { class SequencedTaskRunner; } namespace fileapi { class MediaPathFilter; // A context class which is carried around by FileSystemOperation and // its delegated tasks. It is ok to reuse the same instance for multiple // file system operations as far as they're supposed to share one operation // context. // // This class should only have simple copyable fields and basic // setter/getters for them. class WEBKIT_STORAGE_EXPORT_PRIVATE FileSystemOperationContext { public: explicit FileSystemOperationContext(FileSystemContext* context); ~FileSystemOperationContext(); FileSystemContext* file_system_context() const { return file_system_context_.get(); } void set_allowed_bytes_growth(const int64& allowed_bytes_growth) { allowed_bytes_growth_ = allowed_bytes_growth; } int64 allowed_bytes_growth() const { return allowed_bytes_growth_; } #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) // Initializes |mtp_device_delegate_url_| on the IO thread. void set_mtp_device_delegate_url(const std::string& delegate_url) { mtp_device_delegate_url_ = delegate_url; } // Reads |mtp_device_delegate_url_| on |task_runner_|. const std::string& mtp_device_delegate_url() const { return mtp_device_delegate_url_; } #endif // Returns TaskRunner which the operation is performed on. base::SequencedTaskRunner* task_runner() const { return task_runner_.get(); } // Overrides TaskRunner which the operation is performed on. // file_system_context_->task_runners()->file_task_runner() is used otherwise. void set_task_runner(base::SequencedTaskRunner* task_runner); void set_media_path_filter(MediaPathFilter* media_path_filter) { media_path_filter_ = media_path_filter; } MediaPathFilter* media_path_filter() { return media_path_filter_; } void set_change_observers(const ChangeObserverList& list) { change_observers_ = list; } ChangeObserverList* change_observers() { return &change_observers_; } void set_access_observers(const AccessObserverList& list) { access_observers_ = list; } AccessObserverList* access_observers() { return &access_observers_; } void set_update_observers(const UpdateObserverList& list) { update_observers_ = list; } UpdateObserverList* update_observers() { return &update_observers_; } private: scoped_refptr file_system_context_; scoped_refptr task_runner_; int64 allowed_bytes_growth_; MediaPathFilter* media_path_filter_; AccessObserverList access_observers_; ChangeObserverList change_observers_; UpdateObserverList update_observers_; #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) // URL for the media transfer protocol (MTP) device delegate. // Initialized on IO thread and used on |task_runner_|. std::string mtp_device_delegate_url_; #endif DISALLOW_COPY_AND_ASSIGN(FileSystemOperationContext); }; } // namespace fileapi #endif // WEBKIT_FILEAPI_FILE_SYSTEM_OPERATION_CONTEXT_H_