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// Copyright (c) 2012 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 "input_method_event_router.h"
#include <algorithm>
#include "base/json/json_writer.h"
#include "base/values.h"
#include "chrome/browser/chromeos/web_socket_proxy_controller.h"
#include "chrome/browser/extensions/extension_event_names.h"
#include "chrome/browser/extensions/extension_event_router.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/profiles/profile.h"
namespace {
// Prefix, which is used by XKB.
const char kXkbPrefix[] = "xkb:";
} // namespace
namespace chromeos {
ExtensionInputMethodEventRouter::ExtensionInputMethodEventRouter() {
input_method::InputMethodManager::GetInstance()->AddObserver(this);
}
ExtensionInputMethodEventRouter::~ExtensionInputMethodEventRouter() {
input_method::InputMethodManager::GetInstance()->RemoveObserver(this);
}
void ExtensionInputMethodEventRouter::InputMethodChanged(
input_method::InputMethodManager *manager,
const input_method::InputMethodDescriptor ¤t_input_method,
size_t num_active_input_methods) {
Profile *profile = ProfileManager::GetDefaultProfile();
ExtensionEventRouter *router = profile->GetExtensionEventRouter();
if (!router->HasEventListener(extension_event_names::kOnInputMethodChanged))
return;
ListValue args;
StringValue *input_method_name =
new StringValue(GetInputMethodForXkb(current_input_method.id()));
args.Append(input_method_name);
std::string args_json;
base::JSONWriter::Write(&args, false, &args_json);
// The router will only send the event to extensions that are listening.
router->DispatchEventToRenderers(
extension_event_names::kOnInputMethodChanged,
args_json, profile, GURL());
}
void ExtensionInputMethodEventRouter::ActiveInputMethodsChanged(
input_method::InputMethodManager *manager,
const input_method::InputMethodDescriptor & current_input_method,
size_t num_active_input_methods) {
}
void ExtensionInputMethodEventRouter::PropertyListChanged(
input_method::InputMethodManager *manager,
const input_method::ImePropertyList & current_ime_properties) {
}
std::string ExtensionInputMethodEventRouter::GetInputMethodForXkb(
const std::string& xkb_id) {
size_t prefix_length = std::string(kXkbPrefix).length();
DCHECK(xkb_id.substr(0, prefix_length) == kXkbPrefix);
return xkb_id.substr(prefix_length);
}
} // namespace chromeos
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