components/webusb/webusb_detector.h

   1 // Copyright 2015 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_WEBUSB_WEBUSB_DETECTOR_H_
   6 #define COMPONENTS_WEBUSB_WEBUSB_DETECTOR_H_
   7
   8 #include "base/scoped_observer.h"
   9 #include "device/usb/usb_service.h"
  10
  11 namespace device {
  12 class UsbDevice;
  13 }
  14
  15 namespace webusb {
  16
  17 class UsbDevice;
  18 class WebUsbBrowserClient;
  19
  20 class WebUsbDetector : public device::UsbService::Observer {
  21  public:
  22   WebUsbDetector(WebUsbBrowserClient* webusb_browser_client);
  23
  24   ~WebUsbDetector() override;
  25
  26  private:
  27   // Initializes the WebUsbDetector.
  28   void Initialize();
  29
  30   // UsbService::observer override:
  31   void OnDeviceAdded(scoped_refptr<device::UsbDevice> device) override;
  32
  33   // UsbService::observer override:
  34   void OnDeviceRemoved(scoped_refptr<device::UsbDevice> device) override;
  35
  36   WebUsbBrowserClient* webusb_browser_client_ = nullptr;
  37
  38   ScopedObserver<device::UsbService, device::UsbService::Observer> observer_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(WebUsbDetector);
  41 };
  42
  43 }  // namespace webusb
  44
  45 #endif  // COMPONENTS_WEBUSB_WEBUSB_DETECTOR_H_