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      1 // Copyright (c) 2012 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 #include "content/renderer/pepper/usb_key_code_conversion.h"
      6 
      7 #include "base/basictypes.h"
      8 #include "third_party/WebKit/public/web/WebInputEvent.h"
      9 
     10 using WebKit::WebKeyboardEvent;
     11 
     12 namespace content {
     13 
     14 namespace {
     15 
     16 #define USB_KEYMAP(usb, xkb, win, mac) {usb, win}
     17 #include "ui/base/keycodes/usb_keycode_map.h"
     18 #undef USB_KEYMAP
     19 
     20 }  // anonymous namespace
     21 
     22 uint32_t UsbKeyCodeForKeyboardEvent(const WebKeyboardEvent& key_event) {
     23   // Extract the scancode and extended bit from the native key event's lParam.
     24   int scancode = (key_event.nativeKeyCode >> 16) & 0x000000FF;
     25   if ((key_event.nativeKeyCode & (1 << 24)) != 0)
     26     scancode |= 0xe000;
     27 
     28   return NativeKeycodeToUsbKeycode(scancode);
     29 }
     30 
     31 }  // namespace content
     32