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// 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.
#ifndef VIEWS_EXAMPLES_MENU_EXAMPLE_H_
#define VIEWS_EXAMPLES_MENU_EXAMPLE_H_
#pragma once
#include <set>
#include "app/menus/simple_menu_model.h"
#include "base/utf_string_conversions.h"
#include "views/controls/button/menu_button.h"
#include "views/controls/menu/menu_2.h"
#include "views/controls/menu/view_menu_delegate.h"
#include "views/controls/button/text_button.h"
#include "views/examples/example_base.h"
#include "views/fill_layout.h"
namespace examples {
class ExampleMenuContents : public menus::SimpleMenuModel,
public menus::SimpleMenuModel::Delegate {
enum {
kGroupMakeDecision,
};
enum {
kCommandDoSomething,
kCommandSelectAscii,
kCommandSelectUtf8,
kCommandSelectUtf16,
kCommandCheckApple,
kCommandCheckOrange,
kCommandCheckKiwi,
kCommandGoHome,
};
public:
ExampleMenuContents() :
ALLOW_THIS_IN_INITIALIZER_LIST(menus::SimpleMenuModel(this)),
current_encoding_command_id_(kCommandSelectAscii) {
AddItem(kCommandDoSomething, WideToUTF16(L"Do Something"));
AddSeparator();
AddRadioItem(kCommandSelectAscii,
WideToUTF16(L"ASCII"), kGroupMakeDecision);
AddRadioItem(kCommandSelectUtf8,
WideToUTF16(L"UTF-8"), kGroupMakeDecision);
AddRadioItem(kCommandSelectUtf16,
WideToUTF16(L"UTF-16"), kGroupMakeDecision);
AddSeparator();
AddCheckItem(kCommandCheckApple, WideToUTF16(L"Apple"));
AddCheckItem(kCommandCheckOrange, WideToUTF16(L"Orange"));
AddCheckItem(kCommandCheckKiwi, WideToUTF16(L"Kiwi"));
AddSeparator();
AddItem(kCommandGoHome, WideToUTF16(L"Go Home"));
submenu_.reset(new menus::SimpleMenuModel(this));
submenu_->AddItem(kCommandDoSomething, WideToUTF16(L"Do Something 2"));
AddSubMenu(-1, ASCIIToUTF16("Submenu"), submenu_.get());
menu_.reset(new views::Menu2(this));
}
void RunMenuAt(const gfx::Point& point) {
menu_->RunMenuAt(point, views::Menu2::ALIGN_TOPRIGHT);
}
// menus::SimpleMenuModel::Delegate implementation.
virtual bool IsCommandIdChecked(int command_id) const {
// Radio items.
if (command_id == current_encoding_command_id_) {
return true;
}
// Check items.
if (checked_fruits_.find(command_id) != checked_fruits_.end()) {
return true;
}
return false;
}
virtual bool IsCommandIdEnabled(int command_id) const {
// All commands are enabled except for kCommandGoHome.
return command_id != kCommandGoHome;
}
virtual bool GetAcceleratorForCommandId(
int command_id,
menus::Accelerator* accelerator) {
// We don't use this in the example.
return false;
}
virtual void ExecuteCommand(int command_id) {
switch (command_id) {
case kCommandDoSomething: {
LOG(INFO) << "Done something";
break;
}
// Radio items.
case kCommandSelectAscii: {
current_encoding_command_id_ = kCommandSelectAscii;
LOG(INFO) << "Selected ASCII";
break;
}
case kCommandSelectUtf8: {
current_encoding_command_id_ = kCommandSelectUtf8;
LOG(INFO) << "Selected UTF-8";
break;
}
case kCommandSelectUtf16: {
current_encoding_command_id_ = kCommandSelectUtf16;
LOG(INFO) << "Selected UTF-16";
break;
}
// Check items.
case kCommandCheckApple:
case kCommandCheckOrange:
case kCommandCheckKiwi: {
// Print what fruit is checked.
const char* checked_fruit = "";
if (command_id == kCommandCheckApple) {
checked_fruit = "Apple";
} else if (command_id == kCommandCheckOrange) {
checked_fruit = "Orange";
} else if (command_id == kCommandCheckKiwi) {
checked_fruit = "Kiwi";
}
LOG(INFO) << "Checked " << checked_fruit;
// Update the check status.
std::set<int>::iterator iter = checked_fruits_.find(command_id);
if (iter == checked_fruits_.end()) {
checked_fruits_.insert(command_id);
} else {
checked_fruits_.erase(iter);
}
break;
}
}
}
private:
scoped_ptr<views::Menu2> menu_;
scoped_ptr<menus::SimpleMenuModel> submenu_;
std::set<int> checked_fruits_;
int current_encoding_command_id_;
DISALLOW_COPY_AND_ASSIGN(ExampleMenuContents);
};
class ExampleMenuButton : public views::MenuButton,
public views::ViewMenuDelegate {
public:
ExampleMenuButton(const std::wstring& test,
bool show_menu_marker)
: ALLOW_THIS_IN_INITIALIZER_LIST(
views::MenuButton(NULL, test, this, show_menu_marker)) {
}
private:
// views::ViewMenuDelegate implementation.
virtual void RunMenu(views::View* source, const gfx::Point& point) {
if (menu_contents_ == NULL) {
menu_contents_.reset(new ExampleMenuContents);
}
menu_contents_->RunMenuAt(point);
}
scoped_ptr<ExampleMenuContents> menu_contents_;
DISALLOW_COPY_AND_ASSIGN(ExampleMenuButton);
};
// MenuExample demonstrates how to use the Menu class.
class MenuExample : public ExampleBase {
public:
explicit MenuExample(ExamplesMain* main)
: ExampleBase(main) {
}
virtual ~MenuExample() {}
virtual std::wstring GetExampleTitle() {
return L"Menu";
}
virtual void CreateExampleView(views::View* container) {
// views::Menu2 is not a sub class of View, hence we cannot directly
// add to the continer. Instead, we add a button to open a menu.
const bool show_menu_marker = true;
ExampleMenuButton* menu_button = new ExampleMenuButton(
L"Open a menu", show_menu_marker);
container->SetLayoutManager(new views::FillLayout);
container->AddChildView(menu_button);
}
private:
DISALLOW_COPY_AND_ASSIGN(MenuExample);
};
} // namespace examples
#endif // VIEWS_EXAMPLES_MENU_EXAMPLE_H_
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