// 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 #import #include "base/files/file.h" #include "base/files/file_path.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 { @private base::scoped_nsobject _camera; base::WeakPtr _listener; bool _closing; } - (instancetype)initWithCameraDevice:(ICCameraDevice*)cameraDevice; - (void)setListener: (base::WeakPtr)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_