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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 "ui/base/models/menu_model.h"
#include "ui/base/models/image_model.h"
namespace ui {
MenuModel::MenuModel() : menu_model_delegate_(nullptr) {}
MenuModel::~MenuModel() {
if (menu_model_delegate_)
menu_model_delegate_->OnMenuClearingDelegate();
}
bool MenuModel::IsVisibleAt(int index) const {
return true;
}
bool MenuModel::IsAlertedAt(int index) const {
return false;
}
bool MenuModel::IsNewFeatureAt(int index) const {
return false;
}
ElementIdentifier MenuModel::GetElementIdentifierAt(int index) const {
return ElementIdentifier();
}
// static
bool MenuModel::GetModelAndIndexForCommandId(int command_id,
MenuModel** model,
int* index) {
const int item_count = (*model)->GetItemCount();
for (int i = 0; i < item_count; ++i) {
const int candidate_index = i;
// Actionable submenus have commands.
if ((*model)->GetTypeAt(candidate_index) == TYPE_ACTIONABLE_SUBMENU &&
(*model)->GetCommandIdAt(candidate_index) == command_id) {
*index = candidate_index;
return true;
}
if ((*model)->GetTypeAt(candidate_index) == TYPE_SUBMENU ||
(*model)->GetTypeAt(candidate_index) == TYPE_ACTIONABLE_SUBMENU) {
MenuModel* submenu_model = (*model)->GetSubmenuModelAt(candidate_index);
if (GetModelAndIndexForCommandId(command_id, &submenu_model, index)) {
*model = submenu_model;
return true;
}
}
if ((*model)->GetCommandIdAt(candidate_index) == command_id) {
*index = candidate_index;
return true;
}
}
return false;
}
std::u16string MenuModel::GetMinorTextAt(int index) const {
return std::u16string();
}
std::u16string MenuModel::GetSecondaryLabelAt(int index) const {
return std::u16string();
}
ImageModel MenuModel::GetMinorIconAt(int index) const {
return ImageModel();
}
bool MenuModel::MayHaveMnemonicsAt(int index) const {
return true;
}
const gfx::FontList* MenuModel::GetLabelFontListAt(int index) const {
return nullptr;
}
// Default implementation ignores the event flags.
void MenuModel::ActivatedAt(int index, int event_flags) {
ActivatedAt(index);
}
void MenuModel::SetMenuModelDelegate(MenuModelDelegate* delegate) {
// A non-null delegate overwriting our non-null delegate is not allowed.
DCHECK(!(menu_model_delegate_ && delegate));
if (menu_model_delegate_)
menu_model_delegate_->OnMenuClearingDelegate();
menu_model_delegate_ = delegate;
}
} // namespace ui
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