components/storage_monitor/image_capture_device_manager.h

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