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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 #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_
     30