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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.
#include "components/storage_monitor/image_capture_device_manager.h"
#import <ImageCaptureCore/ImageCaptureCore.h>
#include "base/memory/raw_ptr.h"
#import "components/storage_monitor/image_capture_device.h"
#include "components/storage_monitor/storage_info.h"
namespace {
storage_monitor::ImageCaptureDeviceManager* g_image_capture_device_manager =
nullptr;
} // namespace
// This class is the surface for the Mac ICDeviceBrowser ImageCaptureCore API.
// Owned by the ChromeBrowserParts and has browser process lifetime. Upon
// creation, it gets a list of attached media volumes (asynchronously) which
// it will eventually forward to StorageMonitor. It will also
// set up an ImageCaptureCore listener to be told when new devices/volumes
// are discovered and existing ones are removed.
@interface ImageCaptureDeviceManagerImpl
: NSObject<ICDeviceBrowserDelegate> {
@private
ICDeviceBrowser* __strong _deviceBrowser;
NSMutableArray* __strong _cameras;
// Guaranteed to outlive this class.
// TODO(gbillock): Update when ownership chains go up through
// a StorageMonitor subclass.
raw_ptr<storage_monitor::StorageMonitor::Receiver, DanglingUntriaged>
_notifications;
}
- (void)setNotifications:
(storage_monitor::StorageMonitor::Receiver*)notifications;
- (void)close;
// The UUIDs passed here are available in the device attach notifications.
// They're gotten by cracking the device ID and taking the unique ID output.
- (ImageCaptureDevice*)deviceForUUID:(const std::string&)uuid;
- (ICDeviceBrowser*)deviceBrowserForTest;
@end
@implementation ImageCaptureDeviceManagerImpl
- (instancetype)init {
if ((self = [super init])) {
_cameras = [[NSMutableArray alloc] init];
_deviceBrowser = [[ICDeviceBrowser alloc] init];
_deviceBrowser.delegate = self;
_deviceBrowser.browsedDeviceTypeMask = ICDeviceTypeMask{
ICDeviceTypeMaskCamera | UInt{ICDeviceLocationTypeMaskLocal}};
[_deviceBrowser start];
}
return self;
}
- (void)setNotifications:
(storage_monitor::StorageMonitor::Receiver*)notifications {
_notifications = notifications;
}
- (void)close {
_deviceBrowser.delegate = nil;
[_deviceBrowser stop];
_deviceBrowser = nil;
_cameras = nil;
}
- (ImageCaptureDevice*)deviceForUUID:(const std::string&)uuid {
for (ICCameraDevice* camera in _cameras) {
if (base::SysNSStringToUTF8(camera.UUIDString) == uuid) {
return [[ImageCaptureDevice alloc] initWithCameraDevice:camera];
}
}
return nil;
}
- (void)deviceBrowser:(ICDeviceBrowser*)browser
didAddDevice:(ICDevice*)addedDevice
moreComing:(BOOL)moreComing {
if (!(addedDevice.type & ICDeviceTypeCamera))
return;
// Ignore mass storage attaches -- those will be handled
// by Mac's removable storage watcher.
if ([addedDevice.transportType isEqualToString:ICTransportTypeMassStorage])
return;
ICCameraDevice* cameraDevice =
base::apple::ObjCCastStrict<ICCameraDevice>(addedDevice);
[_cameras addObject:addedDevice];
// TODO(gbillock): use cameraDevice.mountPoint here when possible.
storage_monitor::StorageInfo info(
storage_monitor::StorageInfo::MakeDeviceId(
storage_monitor::StorageInfo::MAC_IMAGE_CAPTURE,
base::SysNSStringToUTF8(cameraDevice.UUIDString)),
/*device_location=*/std::string(),
base::SysNSStringToUTF16(cameraDevice.name),
/*vendor=*/std::u16string(), /*model=*/std::u16string(),
/*size_in_bytes=*/0);
_notifications->ProcessAttach(info);
}
- (void)deviceBrowser:(ICDeviceBrowser*)browser
didRemoveDevice:(ICDevice*)device
moreGoing:(BOOL)moreGoing {
if (!(device.type & ICDeviceTypeCamera))
return;
std::string uuid = base::SysNSStringToUTF8(device.UUIDString);
// May delete |device|.
[_cameras removeObject:device];
_notifications->ProcessDetach(storage_monitor::StorageInfo::MakeDeviceId(
storage_monitor::StorageInfo::MAC_IMAGE_CAPTURE, uuid));
}
- (ICDeviceBrowser*)deviceBrowserForTest {
return _deviceBrowser;
}
@end // ImageCaptureDeviceManagerImpl
namespace storage_monitor {
ImageCaptureDeviceManager::ImageCaptureDeviceManager() {
device_browser_ = [[ImageCaptureDeviceManagerImpl alloc] init];
g_image_capture_device_manager = this;
}
ImageCaptureDeviceManager::~ImageCaptureDeviceManager() {
g_image_capture_device_manager = nullptr;
[device_browser_ close];
}
void ImageCaptureDeviceManager::SetNotifications(
StorageMonitor::Receiver* notifications) {
[device_browser_ setNotifications:notifications];
}
void ImageCaptureDeviceManager::EjectDevice(
const std::string& uuid,
base::OnceCallback<void(StorageMonitor::EjectStatus)> callback) {
ImageCaptureDevice* camera_device = [device_browser_ deviceForUUID:uuid];
[camera_device eject];
[camera_device close];
std::move(callback).Run(StorageMonitor::EJECT_OK);
}
// static
ImageCaptureDevice* ImageCaptureDeviceManager::deviceForUUID(
const std::string& uuid) {
ImageCaptureDeviceManagerImpl* manager =
g_image_capture_device_manager->device_browser_;
return [manager deviceForUUID:uuid];
}
id<ICDeviceBrowserDelegate>
ImageCaptureDeviceManager::device_browser_delegate() {
return device_browser_;
}
ICDeviceBrowser* ImageCaptureDeviceManager::device_browser_for_test() {
return [device_browser_ deviceBrowserForTest];
}
} // namespace storage_monitor
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