A new menu system.

views/controls/menu/simple_menu_model.cc

+// Copyright (c) 2009 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 "views/controls/menu/simple_menu_model.h"
+
+#include "app/l10n_util.h"
+
+namespace views {
+
+////////////////////////////////////////////////////////////////////////////////
+// SimpleMenuModel, public:
+
+SimpleMenuModel::SimpleMenuModel(Delegate* delegate) : delegate_(delegate) {
+}
+
+SimpleMenuModel::~SimpleMenuModel() {
+}
+
+void SimpleMenuModel::AddItem(int command_id, const std::wstring& label) {
+  Item item = { command_id, label, TYPE_COMMAND, -1, NULL };
+  items_.push_back(item);
+}
+
+void SimpleMenuModel::AddItemWithStringId(int command_id, int string_id) {
+  AddItem(command_id, l10n_util::GetString(string_id));
+}
+
+void SimpleMenuModel::AddSeparator() {
+  Item item = { -1, std::wstring(), TYPE_SEPARATOR, -1, NULL };
+  items_.push_back(item);
+}
+
+void SimpleMenuModel::AddCheckItem(int command_id, const std::wstring& label) {
+  Item item = { command_id, label, TYPE_CHECK, -1, NULL };
+  items_.push_back(item);
+}
+
+void SimpleMenuModel::AddCheckItemWithStringId(int command_id, int string_id) {
+  AddCheckItem(command_id, l10n_util::GetString(string_id));
+}
+
+void SimpleMenuModel::AddRadioItem(int command_id, const std::wstring& label,
+                                   int group_id) {
+  Item item = { command_id, label, TYPE_RADIO, group_id, NULL };
+  items_.push_back(item);
+}
+
+void SimpleMenuModel::AddRadioItemWithStringId(int command_id, int string_id,
+                                               int group_id) {
+  AddRadioItem(command_id, l10n_util::GetString(string_id), group_id);
+}
+
+void SimpleMenuModel::AddSubMenu(const std::wstring& label, Menu2Model* model) {
+  Item item = { -1, label, TYPE_SUBMENU, -1, model };
+  items_.push_back(item);
+}
+
+void SimpleMenuModel::AddSubMenuWithStringId(int string_id, Menu2Model* model) {
+  AddSubMenu(l10n_util::GetString(string_id), model);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// SimpleMenuModel, Menu2Model implementation:
+
+bool SimpleMenuModel::HasIcons() const {
+  return false;
+}
+
+int SimpleMenuModel::GetItemCount() const {
+  return static_cast<int>(items_.size());
+}
+
+Menu2Model::ItemType SimpleMenuModel::GetTypeAt(int index) const {
+  return items_.at(FlipIndex(index)).type;
+}
+
+int SimpleMenuModel::GetCommandIdAt(int index) const {
+  return items_.at(FlipIndex(index)).command_id;
+}
+
+std::wstring SimpleMenuModel::GetLabelAt(int index) const {
+  if (IsLabelDynamicAt(index))
+    return delegate_->GetLabelForCommandId(GetCommandIdAt(index));
+  return items_.at(FlipIndex(index)).label;
+}
+
+bool SimpleMenuModel::IsLabelDynamicAt(int index) const {
+  if (delegate_)
+    return delegate_->IsLabelForCommandIdDynamic(GetCommandIdAt(index));
+  return false;
+}
+
+bool SimpleMenuModel::GetAcceleratorAt(int index,
+                                       views::Accelerator* accelerator) const {
+  if (delegate_) {
+    return delegate_->GetAcceleratorForCommandId(GetCommandIdAt(index),
+                                                 accelerator);
+  }
+  return false;
+}
+
+bool SimpleMenuModel::IsItemCheckedAt(int index) const {
+  if (!delegate_)
+    return false;
+  return delegate_->IsCommandIdChecked(GetCommandIdAt(index));
+}
+
+int SimpleMenuModel::GetGroupIdAt(int index) const {
+  return items_.at(FlipIndex(index)).group_id;
+}
+
+bool SimpleMenuModel::GetIconAt(int index, SkBitmap* icon) const {
+  return false;
+}
+
+bool SimpleMenuModel::IsEnabledAt(int index) const {
+  int command_id = GetCommandIdAt(index);
+  // Submenus have a command id of -1, they should always be enabled.
+  if (!delegate_ || command_id == -1)
+    return true;
+  return delegate_->IsCommandIdEnabled(command_id);
+}
+
+Menu2Model* SimpleMenuModel::GetSubmenuModelAt(int index) const {
+  return items_.at(FlipIndex(index)).submenu;
+}
+
+}  // namespace views