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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/test/chromedriver/keycode_text_conversion.h"
// windows.h must be included before versionhelpers.h
#include <windows.h>
#include <stdlib.h>
#include <string.h>
#include <versionhelpers.h>
#include <memory>
#include "base/strings/utf_string_conversions.h"
#include "chrome/test/chromedriver/chrome/ui_events.h"
#include "third_party/abseil-cpp/absl/strings/ascii.h"
bool ConvertKeyCodeToText(
ui::KeyboardCode key_code, int modifiers, std::string* text,
std::string* error_msg) {
UINT scan_code = ::MapVirtualKeyW(key_code, MAPVK_VK_TO_VSC);
BYTE keyboard_state[256] = {};
*error_msg = std::string();
if (modifiers & kShiftKeyModifierMask)
keyboard_state[VK_SHIFT] |= 0x80;
if (modifiers & kControlKeyModifierMask)
keyboard_state[VK_CONTROL] |= 0x80;
if (modifiers & kAltKeyModifierMask)
keyboard_state[VK_MENU] |= 0x80;
wchar_t chars[5];
int code = ::ToUnicode(key_code, scan_code, keyboard_state, chars, 4, 0);
// |ToUnicode| converts some non-text key codes like F1 to various
// control chars. Filter those out.
if (code <= 0 ||
(code == 1 && chars[0] <= UCHAR_MAX &&
absl::ascii_iscntrl(static_cast<unsigned char>(chars[0])))) {
*text = std::string();
} else {
base::WideToUTF8(chars, code, text);
}
return true;
}
bool ConvertCharToKeyCode(char16_t key,
ui::KeyboardCode* key_code,
int* necessary_modifiers,
std::string* error_msg) {
short vkey_and_modifiers = ::VkKeyScanW(key);
bool translated = vkey_and_modifiers != -1 &&
LOBYTE(vkey_and_modifiers) != 0xFF &&
HIBYTE(vkey_and_modifiers) != 0xFF;
*error_msg = std::string();
if (translated) {
*key_code = static_cast<ui::KeyboardCode>(LOBYTE(vkey_and_modifiers));
int win_modifiers = HIBYTE(vkey_and_modifiers);
int modifiers = 0;
if (win_modifiers & 0x01)
modifiers |= kShiftKeyModifierMask;
if (win_modifiers & 0x02)
modifiers |= kControlKeyModifierMask;
if (win_modifiers & 0x04)
modifiers |= kAltKeyModifierMask;
// Ignore bit 0x08: It is for Hankaku key.
*necessary_modifiers = modifiers;
}
return translated;
}
bool SwitchToUSKeyboardLayout() {
// Prior to Windows 8, calling LoadKeyboardLayout() with KLF_SETFORPROCESS
// activates specified keyboard layout for the entire process.
//
// Beginning in Windows 8: KLF_SETFORPROCESS flag is not used.
// LoadKeyboardLayout always activates an input locale identifier for
// the entire system if the current process owns the window with keyboard
// focus.
LPCTSTR kUsKeyboardLayout = TEXT("00000409");
HKL hkl =
::LoadKeyboardLayout(kUsKeyboardLayout, KLF_SETFORPROCESS | KLF_ACTIVATE);
// Inspect only the low word that contains keyboard language identifier,
// ignoring the device identifier (Dvorak keyboard, etc) in the high word.
return LOWORD(hkl) == 0x0409;
}
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