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// Copyright 2014 The Chromium Authors
// 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/apple/foundation_util.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/memory/weak_ptr.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() = default;
// 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>
- (instancetype)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_
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