1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_DEBUG_INFO_COLLECTOR_H_ 6 #define CHROME_BROWSER_CHROMEOS_DRIVE_DEBUG_INFO_COLLECTOR_H_ 7 8 #include "base/basictypes.h" 9 #include "base/callback_forward.h" 10 #include "chrome/browser/chromeos/drive/file_system_interface.h" 11 12 namespace drive { 13 14 // This class provides some methods which are useful to show the debug 15 // info on chrome://drive-internals page. 16 // All the method should be called on UI thread. 17 class DebugInfoCollector { 18 public: 19 // Callback for ReadDirectory(). 20 typedef base::Callback<void(FileError error, 21 scoped_ptr<ResourceEntryVector> entries)> 22 ReadDirectoryCallback; 23 24 // Callback for IterateFileCache(). 25 typedef base::Callback<void(const std::string& id, 26 const FileCacheEntry& cache_entry)> 27 IterateFileCacheCallback; 28 29 DebugInfoCollector(internal::ResourceMetadata* metadata, 30 FileSystemInterface* file_system, 31 base::SequencedTaskRunner* blocking_task_runner); 32 ~DebugInfoCollector(); 33 34 // Finds a locally stored entry (a file or a directory) by |file_path|. 35 // |callback| must not be null. 36 void GetResourceEntry(const base::FilePath& file_path, 37 const GetResourceEntryCallback& callback); 38 39 // Finds and reads a directory by |file_path|. 40 // |callback| must not be null. 41 void ReadDirectory(const base::FilePath& file_path, 42 const ReadDirectoryCallback& callback); 43 44 45 // Iterates all files in the file cache and calls |iteration_callback| for 46 // each file. |completion_callback| is run upon completion. 47 // |iteration_callback| and |completion_callback| must not be null. 48 void IterateFileCache(const IterateFileCacheCallback& iteration_callback, 49 const base::Closure& completion_callback); 50 51 // Returns miscellaneous metadata of the file system like the largest 52 // timestamp. |callback| must not be null. 53 void GetMetadata(const GetFilesystemMetadataCallback& callback); 54 55 private: 56 internal::ResourceMetadata* metadata_; // No owned. 57 FileSystemInterface* file_system_; // Not owned. 58 scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_; 59 60 DISALLOW_COPY_AND_ASSIGN(DebugInfoCollector); 61 }; 62 63 } // namespace drive 64 65 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_DEBUG_INFO_COLLECTOR_H_ 66
