device/devices_app/usb/device_manager_impl.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 DEVICE_USB_DEVICE_MANAGER_IMPL_H_
   6 #define DEVICE_USB_DEVICE_MANAGER_IMPL_H_
   7
   8 #include <vector>
   9
  10 #include "base/macros.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "device/devices_app/usb/public/interfaces/device_manager.mojom.h"
  15 #include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
  16 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  17
  18 namespace base {
  19 class SequencedTaskRunner;
  20 }
  21
  22 namespace device {
  23
  24 class UsbDevice;
  25 class UsbDeviceFilter;
  26 class UsbDeviceHandle;
  27
  28 namespace usb {
  29
  30 class DeviceManagerDelegate;
  31
  32 // Implementation of the public DeviceManager interface. This interface can be
  33 // requested from the devices app located at "system:devices", if available.
  34 class DeviceManagerImpl : public DeviceManager {
  35  public:
  36   DeviceManagerImpl(
  37       mojo::InterfaceRequest<DeviceManager> request,
  38       scoped_ptr<DeviceManagerDelegate> delegate,
  39       scoped_refptr<base::SequencedTaskRunner> service_task_runner);
  40   ~DeviceManagerImpl() override;
  41
  42   void set_connection_error_handler(const mojo::Closure& error_handler);
  43
  44  private:
  45   // DeviceManager implementation:
  46   void GetDevices(EnumerationOptionsPtr options,
  47                   const GetDevicesCallback& callback) override;
  48   void OpenDevice(const mojo::String& guid,
  49                   mojo::InterfaceRequest<Device> device_request,
  50                   const OpenDeviceCallback& callback) override;
  51
  52   // Callback to handle the async response from the underlying UsbService.
  53   void OnGetDevices(EnumerationOptionsPtr options,
  54                     const GetDevicesCallback& callback,
  55                     const std::vector<scoped_refptr<UsbDevice>>& devices);
  56
  57   mojo::StrongBinding<DeviceManager> binding_;
  58
  59   scoped_ptr<DeviceManagerDelegate> delegate_;
  60   scoped_refptr<base::SequencedTaskRunner> service_task_runner_;
  61
  62   base::WeakPtrFactory<DeviceManagerImpl> weak_factory_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(DeviceManagerImpl);
  65 };
  66
  67 }  // namespace usb
  68 }  // namespace device
  69
  70 #endif  // DEVICE_USB_DEVICE_MANAGER_IMPL_H_