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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 "ui/base/ime/ash/extension_ime_util.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "build/branding_buildflags.h"
namespace ash {
namespace {
const char kExtensionIMEPrefix[] = "_ext_ime_";
const int kExtensionIMEPrefixLength =
sizeof(kExtensionIMEPrefix) / sizeof(kExtensionIMEPrefix[0]) - 1;
const char kComponentExtensionIMEPrefix[] = "_comp_ime_";
const int kComponentExtensionIMEPrefixLength =
sizeof(kComponentExtensionIMEPrefix) /
sizeof(kComponentExtensionIMEPrefix[0]) -
1;
const char kArcIMEPrefix[] = "_arc_ime_";
const int kArcIMEPrefixLength =
sizeof(kArcIMEPrefix) / sizeof(kArcIMEPrefix[0]) - 1;
const int kExtensionIdLength = 32;
} // namespace
namespace extension_ime_util {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
const char kXkbExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
const char kM17nExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
const char kHangulExtensionId[] = "bdgdidmhaijohebebipajioienkglgfo";
const char kMozcExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
const char kT13nExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
const char kChinesePinyinExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
const char kChineseZhuyinExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
const char kChineseCangjieExtensionId[] = "jkghodnilhceideoidjikpgommlajknk";
#else
const char kXkbExtensionId[] = "fgoepimhcoialccpbmpnnblemnepkkao";
const char kM17nExtensionId[] = "jhffeifommiaekmbkkjlpmilogcfdohp";
const char kHangulExtensionId[] = "bdgdidmhaijohebebipajioienkglgfo";
const char kMozcExtensionId[] = "bbaiamgfapehflhememkfglaehiobjnk";
const char kT13nExtensionId[] = "gjaehgfemfahhmlgpdfknkhdnemmolop";
const char kChinesePinyinExtensionId[] = "cpgalbafkoofkjmaeonnfijgpfennjjn";
const char kChineseZhuyinExtensionId[] = "ekbifjdfhkmdeeajnolmgdlmkllopefi";
const char kChineseCangjieExtensionId[] = "aeebooiibjahgpgmhkeocbeekccfknbj";
#endif
const char kBrailleImeExtensionId[] = "jddehjeebkoimngcbdkaahpobgicbffp";
const char kBrailleImeExtensionPath[] = "chromeos/accessibility/braille_ime";
const char kBrailleImeEngineId[] =
"_comp_ime_jddehjeebkoimngcbdkaahpobgicbffpbraille";
const char kArcImeLanguage[] = "_arc_ime_language_";
std::string GetInputMethodID(const std::string& extension_id,
const std::string& engine_id) {
DCHECK(!extension_id.empty());
DCHECK(!engine_id.empty());
return kExtensionIMEPrefix + extension_id + engine_id;
}
std::string GetComponentInputMethodID(const std::string& extension_id,
const std::string& engine_id) {
DCHECK(!extension_id.empty());
DCHECK(!engine_id.empty());
return kComponentExtensionIMEPrefix + extension_id + engine_id;
}
std::string GetArcInputMethodID(const std::string& extension_id,
const std::string& engine_id) {
DCHECK(!extension_id.empty());
DCHECK(!engine_id.empty());
return kArcIMEPrefix + extension_id + engine_id;
}
std::string GetExtensionIDFromInputMethodID(
const std::string& input_method_id) {
if (IsExtensionIME(input_method_id)) {
return input_method_id.substr(kExtensionIMEPrefixLength,
kExtensionIdLength);
}
if (IsComponentExtensionIME(input_method_id)) {
return input_method_id.substr(kComponentExtensionIMEPrefixLength,
kExtensionIdLength);
}
if (IsArcIME(input_method_id)) {
return input_method_id.substr(kArcIMEPrefixLength, kExtensionIdLength);
}
return "";
}
std::string GetComponentIDByInputMethodID(const std::string& input_method_id) {
if (IsComponentExtensionIME(input_method_id)) {
return input_method_id.substr(kComponentExtensionIMEPrefixLength +
kExtensionIdLength);
}
if (IsExtensionIME(input_method_id)) {
return input_method_id.substr(kExtensionIMEPrefixLength +
kExtensionIdLength);
}
if (IsArcIME(input_method_id)) {
return input_method_id.substr(kArcIMEPrefixLength + kExtensionIdLength);
}
return input_method_id;
}
std::string GetInputMethodIDByEngineID(const std::string& engine_id) {
if (engine_id.starts_with(kComponentExtensionIMEPrefix) ||
engine_id.starts_with(kExtensionIMEPrefix) ||
engine_id.starts_with(kArcIMEPrefix)) {
return engine_id;
}
if (engine_id.starts_with("xkb:")) {
return GetComponentInputMethodID(kXkbExtensionId, engine_id);
}
if (engine_id.starts_with("vkd_")) {
return GetComponentInputMethodID(kM17nExtensionId, engine_id);
}
if (engine_id.starts_with("nacl_mozc_")) {
return GetComponentInputMethodID(kMozcExtensionId, engine_id);
}
if (engine_id.starts_with("hangul_")) {
return GetComponentInputMethodID(kHangulExtensionId, engine_id);
}
if (engine_id.starts_with("zh-") &&
engine_id.find("pinyin") != std::string::npos) {
return GetComponentInputMethodID(kChinesePinyinExtensionId, engine_id);
}
if (engine_id.starts_with("zh-") &&
engine_id.find("zhuyin") != std::string::npos) {
return GetComponentInputMethodID(kChineseZhuyinExtensionId, engine_id);
}
if (engine_id.starts_with("zh-") &&
engine_id.find("cangjie") != std::string::npos) {
return GetComponentInputMethodID(kChineseCangjieExtensionId, engine_id);
}
if (engine_id.find("-t-i0-") != std::string::npos) {
return GetComponentInputMethodID(kT13nExtensionId, engine_id);
}
return engine_id;
}
bool IsExtensionIME(const std::string& input_method_id) {
return input_method_id.starts_with(kExtensionIMEPrefix) &&
input_method_id.size() >
kExtensionIMEPrefixLength + kExtensionIdLength;
}
bool IsComponentExtensionIME(const std::string& input_method_id) {
return input_method_id.starts_with(kComponentExtensionIMEPrefix) &&
input_method_id.size() >
kComponentExtensionIMEPrefixLength + kExtensionIdLength;
}
bool IsArcIME(const std::string& input_method_id) {
return input_method_id.starts_with(kArcIMEPrefix) &&
input_method_id.size() > kArcIMEPrefixLength + kExtensionIdLength;
}
bool IsKeyboardLayoutExtension(const std::string& input_method_id) {
if (IsComponentExtensionIME(input_method_id)) {
return GetComponentIDByInputMethodID(input_method_id).starts_with("xkb:");
}
return false;
}
bool IsCros1pKorean(const std::string& input_method_id) {
// TODO(crbug.com/1162211): Input method IDs are tuples of extension type,
// extension ID, and extension-local input method ID. However, currently
// they're just concats of the three constituent pieces of info, hence StrCat
// here. Replace StrCat once they're no longer unstructured string concats.
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
return input_method_id == base::StrCat({kComponentExtensionIMEPrefix,
kXkbExtensionId, "ko-t-i0-und"});
#else
return false;
#endif
}
} // namespace extension_ime_util
} // namespace ash
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