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// 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),
triggerable_event_flags_(ui::EF_LEFT_BUTTON_DOWN |
ui::EF_RIGHT_BUTTON_DOWN) {
DCHECK(menu_model);
}
MenuModelAdapter::~MenuModelAdapter() {
}
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);
}
// Leave entries in the map if the menu is being shown. This
// allows the map to find the menu model of submenus being closed
// so ui::MenuModel::MenuClosed() can be called.
if (!menu->GetMenuController())
menu_map_.clear();
menu_map_[menu] = menu_model_;
// Repopulate the menu.
BuildMenuImpl(menu, menu_model_);
menu->ChildrenChanged();
}
MenuItemView* MenuModelAdapter::CreateMenu() {
MenuItemView* item = new MenuItemView(this);
BuildMenu(item);
return item;
}
// 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)) {
model->ActivatedAt(index, mouse_event_flags);
return;
}
NOTREACHED();
}
bool MenuModelAdapter::IsTriggerableEvent(MenuItemView* source,
const MouseEvent& e) {
return (triggerable_event_flags_ & e.flags()) != 0;
}
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);
}
// This line may be reached for the empty menu item.
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) {
// Ignore selection of the root menu.
if (menu == menu->GetRootMenuItem())
return;
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();
}
void MenuModelAdapter::WillHideMenu(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->MenuClosed();
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());
}
} // namespace views
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