chromeos: Move files in //ash/common to //ash, part 2

ash/common/shelf/shelf_application_menu_model.cc

-// 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/common/shelf/shelf_application_menu_model.h"
-
-#include <stddef.h>
-
-#include <limits>
-#include <utility>
-
-#include "ash/common/shelf/shelf_item_delegate.h"
-#include "ash/public/cpp/shelf_application_menu_item.h"
-#include "base/metrics/histogram_macros.h"
-
-namespace {
-
-const int kInvalidCommandId = std::numeric_limits<int>::max();
-
-}  // namespace
-
-namespace ash {
-
-ShelfApplicationMenuModel::ShelfApplicationMenuModel(
-    const base::string16& title,
-    ShelfAppMenuItemList items,
-    ShelfItemDelegate* delegate)
-    : ui::SimpleMenuModel(this), items_(std::move(items)), delegate_(delegate) {
-  AddSeparator(ui::SPACING_SEPARATOR);
-  AddItem(kInvalidCommandId, title);
-  AddSeparator(ui::SPACING_SEPARATOR);
-
-  for (size_t i = 0; i < items_.size(); i++) {
-    ShelfApplicationMenuItem* item = items_[i].get();
-    AddItem(i, item->title());
-    if (!item->icon().IsEmpty())
-      SetIcon(GetIndexOfCommandId(i), item->icon());
-  }
-
-  // SimpleMenuModel does not allow two consecutive spacing separator items.
-  // This only occurs in tests; users should not see menus with no |items_|.
-  if (!items_.empty())
-    AddSeparator(ui::SPACING_SEPARATOR);
-}
-
-ShelfApplicationMenuModel::~ShelfApplicationMenuModel() {}
-
-bool ShelfApplicationMenuModel::IsCommandIdChecked(int command_id) const {
-  return false;
-}
-
-bool ShelfApplicationMenuModel::IsCommandIdEnabled(int command_id) const {
-  return command_id >= 0 && static_cast<size_t>(command_id) < items_.size();
-}
-
-void ShelfApplicationMenuModel::ExecuteCommand(int command_id,
-                                               int event_flags) {
-  DCHECK(delegate_);
-  DCHECK(IsCommandIdEnabled(command_id));
-  // Have the delegate execute its own custom command id for the given item.
-  delegate_->ExecuteCommand(items_[command_id]->command_id(), event_flags);
-  RecordMenuItemSelectedMetrics(command_id, items_.size());
-}
-
-void ShelfApplicationMenuModel::RecordMenuItemSelectedMetrics(
-    int command_id,
-    int num_menu_items_enabled) {
-  UMA_HISTOGRAM_COUNTS_100("Ash.Shelf.Menu.SelectedMenuItemIndex", command_id);
-  UMA_HISTOGRAM_COUNTS_100("Ash.Shelf.Menu.NumItemsEnabledUponSelection",
-                           num_menu_items_enabled);
-}
-
-}  // namespace ash