Add MenuModelAdapter to wrap ui::MenuModel with views::MenuDelegate interface.

views/controls/menu/menu_model_adapter.cc

+// Copyright (c) 2011 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/menu_model_adapter.h"
+
+#include "base/logging.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/models/menu_model.h"
+#include "views/controls/menu/submenu_view.h"
+#include "views/views_delegate.h"
+
+namespace views {
+
+MenuModelAdapter::MenuModelAdapter(ui::MenuModel* menu_model)
+    : menu_model_(menu_model) {
+  DCHECK(menu_model);
+}
+
+void MenuModelAdapter::BuildMenu(MenuItemView* menu) {
+  DCHECK(menu);
+
+  // Clear the menu.
+  if (menu->HasSubmenu()) {
+    const int subitem_count = menu->GetSubmenu()->child_count();
+    for (int i = 0; i < subitem_count; ++i)
+      menu->RemoveMenuItemAt(0);
+  }
+
+  menu_map_.clear();
+  menu_map_[menu] = menu_model_;
+
+  // Repopulate the menu.
+  BuildMenuImpl(menu, menu_model_);
+  menu->ChildrenChanged();
+}
+
+// MenuModelAdapter, MenuDelegate implementation:
+
+void MenuModelAdapter::ExecuteCommand(int id) {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index)) {
+    model->ActivatedAt(index);
+    return;
+  }
+
+  NOTREACHED();
+}
+
+void MenuModelAdapter::ExecuteCommand(int id, int mouse_event_flags) {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index)) {
+    const int disposition =
+        ViewsDelegate::views_delegate->GetDispositionForEvent(
+            mouse_event_flags);
+    model->ActivatedAtWithDisposition(index, disposition);
+    return;
+  }
+
+  NOTREACHED();
+}
+
+bool MenuModelAdapter::GetAccelerator(int id,
+                                      views::Accelerator* accelerator) {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index))
+    return model->GetAcceleratorAt(index, accelerator);
+
+  NOTREACHED();
+  return false;
+}
+
+std::wstring MenuModelAdapter::GetLabel(int id) const {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index))
+    return UTF16ToWide(model->GetLabelAt(index));
+
+  NOTREACHED();
+  return std::wstring();
+}
+
+const gfx::Font& MenuModelAdapter::GetLabelFont(int id) const {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index)) {
+    const gfx::Font* font = model->GetLabelFontAt(index);
+    return font ? *font : MenuDelegate::GetLabelFont(id);
+  }
+
+  NOTREACHED();
+  return MenuDelegate::GetLabelFont(id);
+}
+
+bool MenuModelAdapter::IsCommandEnabled(int id) const {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index))
+    return model->IsEnabledAt(index);
+
+  NOTREACHED();
+  return false;
+}
+
+bool MenuModelAdapter::IsItemChecked(int id) const {
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index))
+    return model->IsItemCheckedAt(index);
+
+  NOTREACHED();
+  return false;
+}
+
+void MenuModelAdapter::SelectionChanged(MenuItemView* menu) {
+  const int id = menu->GetCommand();
+  ui::MenuModel* model = menu_model_;
+  int index = 0;
+  if (ui::MenuModel::GetModelAndIndexForCommandId(id, &model, &index)) {
+    model->HighlightChangedTo(index);
+    return;
+  }
+
+  NOTREACHED();
+}
+
+void MenuModelAdapter::WillShowMenu(MenuItemView* menu) {
+  // Look up the menu model for this menu.
+  const std::map<MenuItemView*, ui::MenuModel*>::const_iterator map_iterator =
+      menu_map_.find(menu);
+  if (map_iterator != menu_map_.end()) {
+    map_iterator->second->MenuWillShow();
+    return;
+  }
+
+  NOTREACHED();
+}
+
+// MenuModelAdapter, private:
+
+void MenuModelAdapter::BuildMenuImpl(MenuItemView* menu, ui::MenuModel* model) {
+  DCHECK(menu);
+  DCHECK(model);
+  const int item_count = model->GetItemCount();
+  for (int i = 0; i < item_count; ++i) {
+    const int index = i + model->GetFirstItemIndex(NULL);
+    MenuItemView* item = menu->AppendMenuItemFromModel(
+        model, index, model->GetCommandIdAt(index));
+
+    if (model->GetTypeAt(index) == ui::MenuModel::TYPE_SUBMENU) {
+      DCHECK(item);
+      DCHECK_EQ(MenuItemView::SUBMENU, item->GetType());
+      ui::MenuModel* submodel = model->GetSubmenuModelAt(index);
+      DCHECK(submodel);
+      BuildMenuImpl(item, submodel);
+
+      menu_map_[item] = submodel;
+    }
+  }
+
+  menu->set_has_icons(model->HasIcons());
+}
+
+}  // views