components/storage_monitor/image_capture_device_manager.h

   1 // Copyright 2014 The Chromium Authors
   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 COMPONENTS_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_MANAGER_H_
   6 #define COMPONENTS_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_MANAGER_H_
   7
   8 #import <Foundation/Foundation.h>
   9
  10 #include <string>
  11
  12 #include "components/storage_monitor/storage_monitor.h"
  13
  14 class MTPDeviceDelegateImplMacTest;
  15
  16 @protocol ICDeviceBrowserDelegate;
  17 @class ICDeviceBrowser;
  18 @class ImageCaptureDevice;
  19 @class ImageCaptureDeviceManagerImpl;
  20
  21 namespace storage_monitor {
  22
  23 // Upon creation, begins monitoring for any attached devices using the
  24 // ImageCapture API. Notifies clients of the presence of such devices
  25 // (i.e. cameras,  USB cards) using the SystemMonitor and makes them
  26 // available using |deviceForUUID|.
  27 class ImageCaptureDeviceManager {
  28  public:
  29   ImageCaptureDeviceManager();
  30   ~ImageCaptureDeviceManager();
  31
  32   // The UUIDs passed here are available in the device attach notifications
  33   // given through SystemMonitor. They're gotten by cracking the device ID
  34   // and taking the unique ID output.
  35   static ImageCaptureDevice* deviceForUUID(const std::string& uuid);
  36
  37   // Returns a weak pointer to the internal ImageCapture interface protocol.
  38   id<ICDeviceBrowserDelegate> device_browser_delegate();
  39
  40   // Sets the receiver for device attach/detach notifications.
  41   // TODO(gbillock): Move this to be a constructor argument.
  42   void SetNotifications(StorageMonitor::Receiver* notifications);
  43
  44   // Eject the given device. The ID passed is not the device ID, but the
  45   // ImageCapture UUID.
  46   void EjectDevice(
  47       const std::string& uuid,
  48       base::OnceCallback<void(StorageMonitor::EjectStatus)> callback);
  49
  50  private:
  51   ImageCaptureDeviceManagerImpl* __strong device_browser_;
  52
  53   // Returns a weak pointer to the internal device browser.
  54   ICDeviceBrowser* device_browser_for_test();
  55   friend class ImageCaptureDeviceManagerTest;
  56   friend class ::MTPDeviceDelegateImplMacTest;
  57 };
  58
  59 }  // namespace storage_monitor
  60
  61 #endif  // COMPONENTS_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_MANAGER_H_