blob: 9daf43c2a00899d28cd85826bbe84d78d388f4f7 [file] [log] [blame]
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// 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"
#import <Carbon/Carbon.h>
#include <cctype>
#include "base/mac/scoped_cftyperef.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/test/chromedriver/chrome/ui_events.h"
#include "ui/events/keycodes/keyboard_code_conversion_mac.h"
bool ConvertKeyCodeToText(
ui::KeyboardCode key_code, int modifiers, std::string* text,
std::string* error_msg) {
int mac_key_code =
ui::MacKeyCodeForWindowsKeyCode(key_code, 0, nullptr, nullptr);
*error_msg = std::string();
if (mac_key_code < 0) {
*text = std::string();
return true;
}
int mac_modifiers = 0;
if (modifiers & kShiftKeyModifierMask)
mac_modifiers |= shiftKey;
if (modifiers & kControlKeyModifierMask)
mac_modifiers |= controlKey;
if (modifiers & kAltKeyModifierMask)
mac_modifiers |= optionKey;
if (modifiers & kMetaKeyModifierMask)
mac_modifiers |= cmdKey;
// Convert EventRecord modifiers to format UCKeyTranslate accepts. See docs
// on UCKeyTranslate for more info.
UInt32 modifier_key_state = (mac_modifiers >> 8) & 0xFF;
base::ScopedCFTypeRef<TISInputSourceRef> input_source_copy(
TISCopyCurrentKeyboardLayoutInputSource());
CFDataRef layout_data = static_cast<CFDataRef>(TISGetInputSourceProperty(
input_source_copy, kTISPropertyUnicodeKeyLayoutData));
UInt32 dead_key_state = 0;
UniCharCount char_count = 0;
UniChar character = 0;
OSStatus status = UCKeyTranslate(
reinterpret_cast<const UCKeyboardLayout*>(CFDataGetBytePtr(layout_data)),
static_cast<UInt16>(mac_key_code),
kUCKeyActionDown,
modifier_key_state,
LMGetKbdLast(),
kUCKeyTranslateNoDeadKeysBit,
&dead_key_state,
1,
&char_count,
&character);
if (status == noErr && char_count == 1 && !std::iscntrl(character)) {
base::string16 text16;
text16.push_back(character);
*text = base::UTF16ToUTF8(text16);
return true;
}
*text = std::string();
return true;
}
bool ConvertCharToKeyCode(
base::char16 key, ui::KeyboardCode* key_code, int *necessary_modifiers,
std::string* error_msg) {
base::string16 key_string;
key_string.push_back(key);
std::string key_string_utf8 = base::UTF16ToUTF8(key_string);
bool found_code = false;
*error_msg = std::string();
// There doesn't seem to be a way to get a mac key code for a given unicode
// character. So here we check every key code to see if it produces the
// right character. We could cache the results and regenerate everytime the
// language changes, but this brute force technique has negligble performance
// effects (on my laptop it is a submillisecond difference).
for (int i = 0; i < 256; ++i) {
ui::KeyboardCode code = static_cast<ui::KeyboardCode>(i);
// Skip the numpad keys.
if (code >= ui::VKEY_NUMPAD0 && code <= ui::VKEY_DIVIDE)
continue;
std::string key_string;
if (!ConvertKeyCodeToText(code, 0, &key_string, error_msg))
return false;
found_code = key_string_utf8 == key_string;
std::string key_string_utf8_tmp;
if (!ConvertKeyCodeToText(
code, kShiftKeyModifierMask, &key_string_utf8_tmp, error_msg))
return false;
if (!found_code && key_string_utf8 == key_string_utf8_tmp) {
*necessary_modifiers = kShiftKeyModifierMask;
found_code = true;
}
if (found_code) {
*key_code = code;
break;
}
}
return found_code;
}