chrome/test/chromedriver/keycode_text_conversion_win.cc

   1 // Copyright (c) 2013 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 "chrome/test/chromedriver/keycode_text_conversion.h"
   6
   7 #include <windows.h>
   8
   9 #include <cctype>
  10
  11 #include "base/utf_string_conversions.h"
  12 #include "chrome/test/chromedriver/chrome/ui_events.h"
  13
  14 std::string ConvertKeyCodeToText(ui::KeyboardCode key_code, int modifiers) {
  15   UINT scan_code = ::MapVirtualKeyW(key_code, MAPVK_VK_TO_VSC);
  16   BYTE keyboard_state[256];
  17   memset(keyboard_state, 0, 256);
  18   if (modifiers & kShiftKeyModifierMask)
  19     keyboard_state[VK_SHIFT] |= 0x80;
  20   if (modifiers & kControlKeyModifierMask)
  21     keyboard_state[VK_CONTROL] |= 0x80;
  22   if (modifiers & kAltKeyModifierMask)
  23     keyboard_state[VK_MENU] |= 0x80;
  24   wchar_t chars[5];
  25   int code = ::ToUnicode(key_code, scan_code, keyboard_state, chars, 4, 0);
  26   // |ToUnicode| converts some non-text key codes like F1 to various ASCII
  27   // control chars. Filter those out.
  28   if (code <= 0 || (code == 1 && std::iscntrl(chars[0]))) {
  29     return "";
  30   } else {
  31     std::string text;
  32     WideToUTF8(chars, code, &text);
  33     return text;
  34   }
  35 }
  36
  37 bool ConvertCharToKeyCode(
  38     char16 key, ui::KeyboardCode* key_code, int *necessary_modifiers) {
  39   short vkey_and_modifiers = ::VkKeyScanW(key);
  40   bool translated = vkey_and_modifiers != -1 &&
  41                     LOBYTE(vkey_and_modifiers) != -1 &&
  42                     HIBYTE(vkey_and_modifiers) != -1;
  43   if (translated) {
  44     *key_code = static_cast<ui::KeyboardCode>(LOBYTE(vkey_and_modifiers));
  45     int win_modifiers = HIBYTE(vkey_and_modifiers);
  46     int modifiers = 0;
  47     if (win_modifiers & 0x01)
  48       modifiers |= kShiftKeyModifierMask;
  49     if (win_modifiers & 0x02)
  50       modifiers |= kControlKeyModifierMask;
  51     if (win_modifiers & 0x04)
  52       modifiers |= kAltKeyModifierMask;
  53     // Ignore bit 0x08: It is for Hankaku key.
  54     *necessary_modifiers = modifiers;
  55   }
  56   return translated;
  57 }