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.
5 #include "chrome/test/chromedriver/keycode_text_conversion.h"
7 #import <Carbon/Carbon.h>
11 #include "base/mac/scoped_cftyperef.h"
12 #include "base/strings/utf_string_conversions.h"
13 #include "chrome/test/chromedriver/chrome/ui_events.h"
14 #include "ui/events/keycodes/keyboard_code_conversion_mac.h"
16 bool ConvertKeyCodeToText(
17 ui::KeyboardCode key_code, int modifiers, std::string* text,
18 std::string* error_msg) {
21 unichar character, unmodified_character;
22 mac_key_code = ui::MacKeyCodeForWindowsKeyCode(
26 &unmodified_character);
28 *error_msg = std::string();
29 if (mac_key_code < 0) {
30 *text = std::string();
34 int mac_modifiers = 0;
35 if (modifiers & kShiftKeyModifierMask)
36 mac_modifiers |= shiftKey;
37 if (modifiers & kControlKeyModifierMask)
38 mac_modifiers |= controlKey;
39 if (modifiers & kAltKeyModifierMask)
40 mac_modifiers |= optionKey;
41 if (modifiers & kMetaKeyModifierMask)
42 mac_modifiers |= cmdKey;
43 // Convert EventRecord modifiers to format UCKeyTranslate accepts. See docs
44 // on UCKeyTranslate for more info.
45 UInt32 modifier_key_state = (mac_modifiers >> 8) & 0xFF;
47 base::ScopedCFTypeRef<TISInputSourceRef> input_source_copy(
48 TISCopyCurrentKeyboardLayoutInputSource());
49 CFDataRef layout_data = static_cast<CFDataRef>(TISGetInputSourceProperty(
50 input_source_copy, kTISPropertyUnicodeKeyLayoutData));
52 UInt32 dead_key_state = 0;
53 UniCharCount char_count = 0;
54 UniChar character = 0;
55 OSStatus status = UCKeyTranslate(
56 reinterpret_cast<const UCKeyboardLayout*>(CFDataGetBytePtr(layout_data)),
57 static_cast<UInt16>(mac_key_code),
61 kUCKeyTranslateNoDeadKeysBit,
66 if (status == noErr && char_count == 1 && !std::iscntrl(character)) {
67 base::string16 text16;
68 text16.push_back(character);
69 *text = base::UTF16ToUTF8(text16);
72 *text = std::string();
76 bool ConvertCharToKeyCode(
77 base::char16 key, ui::KeyboardCode* key_code, int *necessary_modifiers,
78 std::string* error_msg) {
79 base::string16 key_string;
80 key_string.push_back(key);
81 std::string key_string_utf8 = base::UTF16ToUTF8(key_string);
82 bool found_code = false;
83 *error_msg = std::string();
84 // There doesn't seem to be a way to get a mac key code for a given unicode
85 // character. So here we check every key code to see if it produces the
86 // right character. We could cache the results and regenerate everytime the
87 // language changes, but this brute force technique has negligble performance
88 // effects (on my laptop it is a submillisecond difference).
89 for (int i = 0; i < 256; ++i) {
90 ui::KeyboardCode code = static_cast<ui::KeyboardCode>(i);
91 // Skip the numpad keys.
92 if (code >= ui::VKEY_NUMPAD0 && code <= ui::VKEY_DIVIDE)
94 std::string key_string;
95 if (!ConvertKeyCodeToText(code, 0, &key_string, error_msg))
97 found_code = key_string_utf8 == key_string;
98 std::string key_string_utf8_tmp;
99 if (!ConvertKeyCodeToText(
100 code, kShiftKeyModifierMask, &key_string_utf8_tmp, error_msg))
102 if (!found_code && key_string_utf8 == key_string_utf8_tmp) {
103 *necessary_modifiers = kShiftKeyModifierMask;