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 <stdlib.h>
   8 #include <windows.h>
   9
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/test/chromedriver/chrome/ui_events.h"
  12
  13 bool ConvertKeyCodeToText(
  14     ui::KeyboardCode key_code, int modifiers, std::string* text,
  15     std::string* error_msg) {
  16   UINT scan_code = ::MapVirtualKeyW(key_code, MAPVK_VK_TO_VSC);
  17   BYTE keyboard_state[256];
  18   memset(keyboard_state, 0, 256);
  19   *error_msg = std::string();
  20   if (modifiers & kShiftKeyModifierMask)
  21     keyboard_state[VK_SHIFT] |= 0x80;
  22   if (modifiers & kControlKeyModifierMask)
  23     keyboard_state[VK_CONTROL] |= 0x80;
  24   if (modifiers & kAltKeyModifierMask)
  25     keyboard_state[VK_MENU] |= 0x80;
  26   wchar_t chars[5];
  27   int code = ::ToUnicode(key_code, scan_code, keyboard_state, chars, 4, 0);
  28   // |ToUnicode| converts some non-text key codes like F1 to various
  29   // control chars. Filter those out.
  30   if (code <= 0 || (code == 1 && iswcntrl(chars[0])))
  31     *text = std::string();
  32   else
  33     base::WideToUTF8(chars, code, text);
  34   return true;
  35 }
  36
  37 bool ConvertCharToKeyCode(
  38     base::char16 key, ui::KeyboardCode* key_code, int *necessary_modifiers,
  39     std::string* error_msg) {
  40   short vkey_and_modifiers = ::VkKeyScanW(key);
  41   bool translated = vkey_and_modifiers != -1 &&
  42                     LOBYTE(vkey_and_modifiers) != 0xFF &&
  43                     HIBYTE(vkey_and_modifiers) != 0xFF;
  44   *error_msg = std::string();
  45   if (translated) {
  46     *key_code = static_cast<ui::KeyboardCode>(LOBYTE(vkey_and_modifiers));
  47     int win_modifiers = HIBYTE(vkey_and_modifiers);
  48     int modifiers = 0;
  49     if (win_modifiers & 0x01)
  50       modifiers |= kShiftKeyModifierMask;
  51     if (win_modifiers & 0x02)
  52       modifiers |= kControlKeyModifierMask;
  53     if (win_modifiers & 0x04)
  54       modifiers |= kAltKeyModifierMask;
  55     // Ignore bit 0x08: It is for Hankaku key.
  56     *necessary_modifiers = modifiers;
  57   }
  58   return translated;
  59 }