chromeos: Remove the last IME methods from ash::SystemTrayDelegate

ash/system/ime/ime_util.cc

Index: ash/system/ime/ime_util.cc
diff --git a/ash/system/ime/ime_util.cc b/ash/system/ime/ime_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..27ee8a2dfc5f2850153334ccc26bd854ed90a4f7
--- /dev/null
+++ b/ash/system/ime/ime_util.cc
@@ -0,0 +1,111 @@
+// Copyright 2017 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 "ash/system/ime/ime_util.h"
+
+#include <memory>
+#include <string>
+
+#include "ash/system/tray/ime_info.h"
+#include "base/strings/utf_string_conversions.h"
+#include "ui/base/ime/chromeos/extension_ime_util.h"
+#include "ui/base/ime/chromeos/input_method_descriptor.h"
+#include "ui/base/ime/chromeos/input_method_manager.h"
+#include "ui/base/ime/chromeos/input_method_util.h"
+#include "ui/chromeos/ime/input_method_menu_item.h"
+#include "ui/chromeos/ime/input_method_menu_manager.h"
+
+using chromeos::input_method::InputMethodDescriptor;
+using chromeos::input_method::InputMethodDescriptors;
+using chromeos::input_method::InputMethodManager;
+using chromeos::input_method::InputMethodUtil;
+
+namespace ash {
+namespace ime_util {
+namespace {
+
+IMEInfo* g_current_ime_for_testing = nullptr;
+std::vector<IMEInfo>* g_available_ime_list_for_testing = nullptr;
+
+IMEInfo ExtractIMEInfo(const InputMethodDescriptor& ime,
+                       const InputMethodUtil& util) {
+  IMEInfo info;
+  info.id = ime.id();
+  info.name = util.GetInputMethodLongName(ime);
+  info.medium_name = util.GetInputMethodMediumName(ime);
+  info.short_name = util.GetInputMethodShortName(ime);
+  info.third_party = chromeos::extension_ime_util::IsExtensionIME(ime.id());
+  return info;
+}
+
+}  // namespace
+
+IMEInfo GetCurrentIME() {
+  if (g_current_ime_for_testing)
+    return *g_current_ime_for_testing;
+
+  InputMethodManager* manager = InputMethodManager::Get();
+  InputMethodUtil* util = manager->GetInputMethodUtil();
+  InputMethodDescriptor ime =
+      manager->GetActiveIMEState()->GetCurrentInputMethod();
+  IMEInfo info = ExtractIMEInfo(ime, *util);
+  info.selected = true;
+  return info;
+}
+
+std::vector<IMEInfo> GetAvailableIMEList() {
+  if (g_available_ime_list_for_testing)
+    return *g_available_ime_list_for_testing;
+
+  std::vector<IMEInfo> list;
+  InputMethodManager* manager = InputMethodManager::Get();
+  InputMethodUtil* util = manager->GetInputMethodUtil();
+  std::unique_ptr<InputMethodDescriptors> ime_descriptors(
+      manager->GetActiveIMEState()->GetActiveInputMethods());
+  std::string current =
+      manager->GetActiveIMEState()->GetCurrentInputMethod().id();
+  for (const InputMethodDescriptor& ime : *ime_descriptors) {
+    IMEInfo info = ExtractIMEInfo(ime, *util);
+    info.selected = ime.id() == current;
+    list.push_back(info);
+  }
+  return list;
+}
+
+std::vector<IMEPropertyInfo> GetCurrentIMEProperties() {
+  std::vector<IMEPropertyInfo> list;
+  ui::ime::InputMethodMenuItemList menu_list =
+      ui::ime::InputMethodMenuManager::GetInstance()
+          ->GetCurrentInputMethodMenuItemList();
+  for (const ui::ime::InputMethodMenuItem& item : menu_list) {
+    IMEPropertyInfo property;
+    property.key = item.key;
+    property.name = base::UTF8ToUTF16(item.label);
+    property.selected = item.is_selection_item_checked;
+    list.push_back(property);
+  }
+  return list;
+}
+
+ScopedCurrentImeForTesting::ScopedCurrentImeForTesting(IMEInfo* info)
+    : last_info_(g_current_ime_for_testing) {
+  g_current_ime_for_testing = info;
+}
+
+ScopedCurrentImeForTesting::~ScopedCurrentImeForTesting() {
+  g_current_ime_for_testing = last_info_;
+}
+
+ScopedAvailableImeListForTesting::ScopedAvailableImeListForTesting(
+    std::vector<IMEInfo>* list)
+    : last_list_(g_available_ime_list_for_testing) {
+  g_available_ime_list_for_testing = list;
+}
+
+ScopedAvailableImeListForTesting::~ScopedAvailableImeListForTesting() {
+  g_available_ime_list_for_testing = last_list_;
+}
+
+}  // namespace ime_util
+}  // namespace ash