1 // Copyright (c) 2012 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 // MediaStorageUtil provides information about storage devices attached 6 // to the computer. 7 8 #ifndef CHROME_BROWSER_STORAGE_MONITOR_MEDIA_STORAGE_UTIL_H_ 9 #define CHROME_BROWSER_STORAGE_MONITOR_MEDIA_STORAGE_UTIL_H_ 10 11 #include <set> 12 #include <string> 13 14 #include "base/basictypes.h" 15 #include "base/callback_forward.h" 16 #include "base/files/file_path.h" 17 18 struct StorageInfo; 19 20 class MediaStorageUtil { 21 public: 22 typedef std::set<std::string /*device id*/> DeviceIdSet; 23 24 // Check if the file system at the passed mount point looks like a media 25 // device using the existence of DCIM directory. 26 // Returns true if it looks like a media device, otherwise returns false. 27 // Mac OS X behaves similarly, but this is not the only heuristic it uses. 28 // TODO(vandebo) Try to figure out how Mac OS X decides this, and rename 29 // if additional OS X heuristic is implemented. 30 static bool HasDcim(const base::FilePath& mount_point); 31 32 // Returns true if we will be able to create a filesystem for this device. 33 static bool CanCreateFileSystem(const std::string& device_id, 34 const base::FilePath& path); 35 36 // Removes disconnected devices from |devices| and then calls |done|. 37 static void FilterAttachedDevices(DeviceIdSet* devices, 38 const base::Closure& done); 39 40 // Given |path|, fill in |device_info|, and |relative_path| 41 // (from the root of the device). 42 static bool GetDeviceInfoFromPath(const base::FilePath& path, 43 StorageInfo* device_info, 44 base::FilePath* relative_path); 45 46 // Get a base::FilePath for the given |device_id|. If the device isn't a mass 47 // storage type, the base::FilePath will be empty. This does not check that 48 // the device is connected. 49 static base::FilePath FindDevicePathById(const std::string& device_id); 50 51 // Record device information histogram for the given |device_uuid| and 52 // |device_label|. |mass_storage| indicates whether the current device is a 53 // mass storage device, as defined by IsMassStorageDevice(). 54 static void RecordDeviceInfoHistogram(bool mass_storage, 55 const std::string& device_uuid, 56 const base::string16& device_label); 57 58 // Returns true if the |id| is both a removable device and also 59 // currently attached. 60 static bool IsRemovableStorageAttached(const std::string& id); 61 62 private: 63 DISALLOW_IMPLICIT_CONSTRUCTORS(MediaStorageUtil); 64 }; 65 66 #endif // CHROME_BROWSER_STORAGE_MONITOR_MEDIA_STORAGE_UTIL_H_ 67
