| // Copyright 2014 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. |
| |
| #ifndef COMPONENTS_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_H_ |
| #define COMPONENTS_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_H_ |
| |
| #import <Foundation/Foundation.h> |
| #import <ImageCaptureCore/ImageCaptureCore.h> |
| |
| #include "base/files/file.h" |
| #include "base/files/file_path.h" |
| #include "base/mac/cocoa_protocols.h" |
| #include "base/mac/foundation_util.h" |
| #include "base/mac/scoped_nsobject.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/sys_string_conversions.h" |
| #include "base/synchronization/lock.h" |
| |
| namespace storage_monitor { |
| |
| // Clients use this listener interface to get notifications about |
| // events happening as a particular ImageCapture device is interacted with. |
| // Clients drive the interaction through the ImageCaptureDeviceManager |
| // and the ImageCaptureDevice classes, and get notifications of |
| // events through this interface. |
| class ImageCaptureDeviceListener { |
| public: |
| virtual ~ImageCaptureDeviceListener() {} |
| |
| // Get a notification that a particular item has been found on the device. |
| // These calls will come automatically after a new device is initialized. |
| // Names are in relative path form, so subdirectories and files in them will |
| // be passed as "dir/subdir/filename". These same relative filenames should |
| // be used as keys to download files. |
| virtual void ItemAdded(const std::string& name, |
| const base::File::Info& info) = 0; |
| |
| // Called when there are no more items to retrieve. |
| virtual void NoMoreItems() = 0; |
| |
| // Called upon completion of a file download request. |
| // Note: in NOT_FOUND error case, may be called inline with the download |
| // request. |
| virtual void DownloadedFile(const std::string& name, |
| base::File::Error error) = 0; |
| |
| // Called to let the client know the device is removed. The client should |
| // set the ImageCaptureDevice listener to null upon receiving this call. |
| virtual void DeviceRemoved() = 0; |
| }; |
| |
| } // namespace storage_monitor |
| |
| // Interface to a camera device found by ImageCaptureCore. This class manages a |
| // session to the camera and provides the backing interactions to present the |
| // media files on it to the filesystem delegate. FilePaths will be artificial, |
| // like "/$device_id/" + name. |
| // Note that all interactions with this class must happen on the UI thread. |
| @interface ImageCaptureDevice |
| : NSObject<ICCameraDeviceDelegate, ICCameraDeviceDownloadDelegate> { |
| @private |
| base::scoped_nsobject<ICCameraDevice> camera_; |
| base::WeakPtr<storage_monitor::ImageCaptureDeviceListener> listener_; |
| bool closing_; |
| } |
| |
| - (id)initWithCameraDevice:(ICCameraDevice*)cameraDevice; |
| - (void)setListener: |
| (base::WeakPtr<storage_monitor::ImageCaptureDeviceListener>)listener; |
| - (void)open; |
| - (void)close; |
| |
| - (void)eject; |
| |
| // Download the given file |name| to the provided |local_path|. Completion |
| // notice will be sent to the listener's DownloadedFile method. The name |
| // should be of the same form as those sent to the listener's ItemAdded method. |
| - (void)downloadFile:(const std::string&)name |
| localPath:(const base::FilePath&)localPath; |
| |
| @end |
| |
| #endif // COMPONENTS_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_H_ |