Rename RemovableDeviceNotifications=>StorageMonitor

chrome/browser/storage_monitor/removable_device_notifications_mac.mm

-// 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.
-
-#include "chrome/browser/storage_monitor/removable_device_notifications_mac.h"
-
-#include "chrome/browser/storage_monitor/media_device_notifications_utils.h"
-#include "content/public/browser/browser_thread.h"
-
-namespace chrome {
-
-namespace {
-
-const char kDiskImageModelName[] = "Disk Image";
-
-void GetDiskInfoAndUpdateOnFileThread(
-    const scoped_refptr<RemovableDeviceNotificationsMac>& notifications,
-    base::mac::ScopedCFTypeRef<CFDictionaryRef> dict,
-    RemovableDeviceNotificationsMac::UpdateType update_type) {
-  DiskInfoMac info = DiskInfoMac::BuildDiskInfoOnFileThread(dict);
-  if (info.device_id().empty())
-    return;
-
-  content::BrowserThread::PostTask(
-      content::BrowserThread::UI,
-      FROM_HERE,
-      base::Bind(&RemovableDeviceNotificationsMac::UpdateDisk,
-                 notifications,
-                 info,
-                 update_type));
-}
-
-void GetDiskInfoAndUpdate(
-    const scoped_refptr<RemovableDeviceNotificationsMac>& notifications,
-    DADiskRef disk,
-    RemovableDeviceNotificationsMac::UpdateType update_type) {
-  base::mac::ScopedCFTypeRef<CFDictionaryRef> dict(DADiskCopyDescription(disk));
-  content::BrowserThread::PostTask(
-      content::BrowserThread::FILE,
-      FROM_HERE,
-      base::Bind(GetDiskInfoAndUpdateOnFileThread,
-                 notifications,
-                 dict,
-                 update_type));
-}
-
-}  // namespace
-
-RemovableDeviceNotificationsMac::RemovableDeviceNotificationsMac() {
-  session_.reset(DASessionCreate(NULL));
-
-  DASessionScheduleWithRunLoop(
-      session_, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
-
-  // Register for callbacks for attached, changed, and removed devices.
-  // This will send notifications for existing devices too.
-  DARegisterDiskAppearedCallback(
-      session_,
-      kDADiskDescriptionMatchVolumeMountable,
-      DiskAppearedCallback,
-      this);
-  DARegisterDiskDisappearedCallback(
-      session_,
-      kDADiskDescriptionMatchVolumeMountable,
-      DiskDisappearedCallback,
-      this);
-  DARegisterDiskDescriptionChangedCallback(
-      session_,
-      kDADiskDescriptionMatchVolumeMountable,
-      kDADiskDescriptionWatchVolumePath,
-      DiskDescriptionChangedCallback,
-      this);
-}
-
-RemovableDeviceNotificationsMac::~RemovableDeviceNotificationsMac() {
-  DASessionUnscheduleFromRunLoop(
-      session_, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
-}
-
-void RemovableDeviceNotificationsMac::UpdateDisk(
-    const DiskInfoMac& info,
-    UpdateType update_type) {
-  if (info.bsd_name().empty())
-    return;
-
-  std::map<std::string, DiskInfoMac>::iterator it =
-      disk_info_map_.find(info.bsd_name());
-  if (it != disk_info_map_.end()) {
-    // If an attached notification was previously posted then post a detached
-    // notification now. This is used for devices that are being removed or
-    // devices that have changed.
-    if (ShouldPostNotificationForDisk(it->second)) {
-      receiver()->ProcessDetach(it->second.device_id());
-    }
-  }
-
-  if (update_type == UPDATE_DEVICE_REMOVED) {
-    if (it != disk_info_map_.end())
-      disk_info_map_.erase(it);
-  } else {
-    disk_info_map_[info.bsd_name()] = info;
-    MediaStorageUtil::RecordDeviceInfoHistogram(true, info.device_id(),
-                                                info.device_name());
-    if (ShouldPostNotificationForDisk(info)) {
-      string16 display_name = GetDisplayNameForDevice(
-          info.total_size_in_bytes(), info.device_name());
-      receiver()->ProcessAttach(StorageInfo(
-          info.device_id(), display_name, info.mount_point().value()));
-    }
-  }
-}
-
-bool RemovableDeviceNotificationsMac::GetStorageInfoForPath(
-    const base::FilePath& path,
-    StorageInfo* device_info) const {
-  if (!path.IsAbsolute())
-    return false;
-
-  base::FilePath current = path;
-  const base::FilePath root(base::FilePath::kSeparators);
-  while (current != root) {
-    DiskInfoMac info;
-    if (FindDiskWithMountPoint(current, &info)) {
-      device_info->device_id = info.device_id();
-      device_info->name = info.device_name();
-      device_info->location = info.mount_point().value();
-      return true;
-    }
-    current = current.DirName();
-  }
-
-  return false;
-}
-
-uint64 RemovableDeviceNotificationsMac::GetStorageSize(
-    const std::string& location) const {
-  DiskInfoMac info;
-  if (!FindDiskWithMountPoint(base::FilePath(location), &info))
-    return 0;
-  return info.total_size_in_bytes();
-}
-
-// static
-void RemovableDeviceNotificationsMac::DiskAppearedCallback(
-    DADiskRef disk,
-    void* context) {
-  RemovableDeviceNotificationsMac* notifications =
-      static_cast<RemovableDeviceNotificationsMac*>(context);
-  GetDiskInfoAndUpdate(notifications,
-                       disk,
-                       UPDATE_DEVICE_ADDED);
-}
-
-// static
-void RemovableDeviceNotificationsMac::DiskDisappearedCallback(
-    DADiskRef disk,
-    void* context) {
-  RemovableDeviceNotificationsMac* notifications =
-      static_cast<RemovableDeviceNotificationsMac*>(context);
-  GetDiskInfoAndUpdate(notifications,
-                       disk,
-                       UPDATE_DEVICE_REMOVED);
-}
-
-// static
-void RemovableDeviceNotificationsMac::DiskDescriptionChangedCallback(
-    DADiskRef disk,
-    CFArrayRef keys,
-    void *context) {
-  RemovableDeviceNotificationsMac* notifications =
-      static_cast<RemovableDeviceNotificationsMac*>(context);
-  GetDiskInfoAndUpdate(notifications,
-                       disk,
-                       UPDATE_DEVICE_CHANGED);
-}
-
-bool RemovableDeviceNotificationsMac::ShouldPostNotificationForDisk(
-    const DiskInfoMac& info) const {
-  // Only post notifications about disks that have no empty fields and
-  // are removable. Also exclude disk images (DMGs).
-  return !info.bsd_name().empty() &&
-         !info.device_id().empty() &&
-         !info.device_name().empty() &&
-         !info.mount_point().empty() &&
-         info.model_name() != kDiskImageModelName &&
-         (info.type() == MediaStorageUtil::REMOVABLE_MASS_STORAGE_WITH_DCIM ||
-          info.type() == MediaStorageUtil::REMOVABLE_MASS_STORAGE_NO_DCIM);
-}
-
-bool RemovableDeviceNotificationsMac::FindDiskWithMountPoint(
-    const base::FilePath& mount_point,
-    DiskInfoMac* info) const {
-  for (std::map<std::string, DiskInfoMac>::const_iterator
-      it = disk_info_map_.begin(); it != disk_info_map_.end(); ++it) {
-    if (it->second.mount_point() == mount_point) {
-      *info = it->second;
-      return true;
-    }
-  }
-  return false;
-}
-
-}  // namespace chrome