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// Copyright 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 "chromeos/ime/component_extension_ime_manager.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "chromeos/ime/extension_ime_util.h"
namespace chromeos {
namespace {
// The whitelist for enabling extension based xkb keyboards at login session.
const char* kLoginLayoutWhitelist[] = {
"be",
"br",
"ca",
"ca(eng)",
"ca(multix)",
"ch",
"ch(fr)",
"cz",
"cz(qwerty)",
"de",
"de(neo)",
"dk",
"ee",
"es",
"es(cat)",
"fi",
"fr",
"gb(dvorak)",
"gb(extd)",
"hr",
"hu",
"ie",
"is",
"it",
"jp",
"latam",
"lt",
"lv(apostrophe)",
"mt",
"no",
"pl",
"pt",
"ro",
"se",
"si",
"tr",
"us",
"us(altgr-intl)",
"us(colemak)",
"us(dvorak)",
"us(intl)"
};
} // namespace
ComponentExtensionEngine::ComponentExtensionEngine() {
}
ComponentExtensionEngine::~ComponentExtensionEngine() {
}
ComponentExtensionIME::ComponentExtensionIME() {
}
ComponentExtensionIME::~ComponentExtensionIME() {
}
ComponentExtensionIMEManagerDelegate::ComponentExtensionIMEManagerDelegate() {
}
ComponentExtensionIMEManagerDelegate::~ComponentExtensionIMEManagerDelegate() {
}
ComponentExtensionIMEManager::ComponentExtensionIMEManager() {
for (size_t i = 0; i < arraysize(kLoginLayoutWhitelist); ++i) {
login_layout_set_.insert(kLoginLayoutWhitelist[i]);
}
}
ComponentExtensionIMEManager::~ComponentExtensionIMEManager() {
}
void ComponentExtensionIMEManager::Initialize(
scoped_ptr<ComponentExtensionIMEManagerDelegate> delegate) {
delegate_ = delegate.Pass();
std::vector<ComponentExtensionIME> ext_list = delegate_->ListIME();
for (size_t i = 0; i < ext_list.size(); ++i) {
ComponentExtensionIME& ext = ext_list[i];
bool extension_exists = IsWhitelistedExtension(ext.id);
if (!extension_exists)
component_extension_imes_[ext.id] = ext;
for (size_t j = 0; j < ext.engines.size(); ++j) {
ComponentExtensionEngine& ime = ext.engines[j];
const std::string input_method_id =
extension_ime_util::GetComponentInputMethodID(ext.id, ime.engine_id);
if (extension_exists && !IsWhitelisted(input_method_id))
component_extension_imes_[ext.id].engines.push_back(ime);
input_method_id_set_.insert(input_method_id);
}
}
}
bool ComponentExtensionIMEManager::LoadComponentExtensionIME(
Profile* profile,
const std::string& input_method_id) {
ComponentExtensionIME ime;
if (FindEngineEntry(input_method_id, &ime)) {
delegate_->Load(profile, ime.id, ime.manifest, ime.path);
return true;
}
return false;
}
bool ComponentExtensionIMEManager::UnloadComponentExtensionIME(
Profile* profile,
const std::string& input_method_id) {
ComponentExtensionIME ime;
if (!FindEngineEntry(input_method_id, &ime))
return false;
delegate_->Unload(profile, ime.id, ime.path);
return true;
}
bool ComponentExtensionIMEManager::IsWhitelisted(
const std::string& input_method_id) {
return input_method_id_set_.find(input_method_id) !=
input_method_id_set_.end();
}
bool ComponentExtensionIMEManager::IsWhitelistedExtension(
const std::string& extension_id) {
return component_extension_imes_.find(extension_id) !=
component_extension_imes_.end();
}
input_method::InputMethodDescriptors
ComponentExtensionIMEManager::GetAllIMEAsInputMethodDescriptor() {
input_method::InputMethodDescriptors result;
for (std::map<std::string, ComponentExtensionIME>::const_iterator it =
component_extension_imes_.begin();
it != component_extension_imes_.end(); ++it) {
const ComponentExtensionIME& ext = it->second;
for (size_t j = 0; j < ext.engines.size(); ++j) {
const ComponentExtensionEngine& ime = ext.engines[j];
const std::string input_method_id =
extension_ime_util::GetComponentInputMethodID(
ext.id, ime.engine_id);
const std::vector<std::string>& layouts = ime.layouts;
result.push_back(
input_method::InputMethodDescriptor(
input_method_id,
ime.display_name,
ime.indicator,
layouts,
ime.language_codes,
// Enables extension based xkb keyboards on login screen.
extension_ime_util::IsKeyboardLayoutExtension(
input_method_id) && IsInLoginLayoutWhitelist(layouts),
ime.options_page_url,
ime.input_view_url));
}
}
return result;
}
input_method::InputMethodDescriptors
ComponentExtensionIMEManager::GetXkbIMEAsInputMethodDescriptor() {
input_method::InputMethodDescriptors result;
const input_method::InputMethodDescriptors& descriptors =
GetAllIMEAsInputMethodDescriptor();
for (size_t i = 0; i < descriptors.size(); ++i) {
if (extension_ime_util::IsKeyboardLayoutExtension(descriptors[i].id()))
result.push_back(descriptors[i]);
}
return result;
}
bool ComponentExtensionIMEManager::FindEngineEntry(
const std::string& input_method_id,
ComponentExtensionIME* out_extension) {
if (!IsWhitelisted(input_method_id))
return false;
std::string extension_id =
extension_ime_util::GetExtensionIDFromInputMethodID(input_method_id);
std::map<std::string, ComponentExtensionIME>::iterator it =
component_extension_imes_.find(extension_id);
if (it == component_extension_imes_.end())
return false;
if (out_extension)
*out_extension = it->second;
return true;
}
bool ComponentExtensionIMEManager::IsInLoginLayoutWhitelist(
const std::vector<std::string>& layouts) {
for (size_t i = 0; i < layouts.size(); ++i) {
if (login_layout_set_.find(layouts[i]) != login_layout_set_.end())
return true;
}
return false;
}
} // namespace chromeos
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