content/renderer/pepper/usb_key_code_conversion.h

   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 #ifndef CONTENT_RENDERER_PEPPER_USB_KEY_CODE_CONVERSION_H_
   6 #define CONTENT_RENDERER_PEPPER_USB_KEY_CODE_CONVERSION_H_
   7
   8 #include "ppapi/c/pp_stdint.h"
   9
  10 namespace blink {
  11 class WebKeyboardEvent;
  12 }  // namespace blink
  13
  14 namespace content {
  15
  16 // Returns a 32-bit "USB Key Code" for the key identifier by the supplied
  17 // WebKeyboardEvent. The supplied event must be a KeyDown or KeyUp.
  18 // The code consists of the USB Page (in the high-order 16-bit word) and
  19 // USB Usage Id of the key.  If no translation can be performed then zero
  20 // is returned.
  21 uint32_t UsbKeyCodeForKeyboardEvent(const blink::WebKeyboardEvent& key_event);
  22
  23 // Returns a string that represents the UI Event |code| parameter as specified
  24 // in http://www.w3.org/TR/uievents/
  25 const char* CodeForKeyboardEvent(const blink::WebKeyboardEvent& key_event);
  26
  27 }  // namespace content
  28
  29 #endif  // CONTENT_RENDERER_PEPPER_USB_KEY_CODE_CONVERSION_H_