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// Copyright (c) 2012 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/views/examples/menu_example.h"
#include <set>
#include "base/strings/utf_string_conversions.h"
#include "ui/base/models/simple_menu_model.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/controls/button/menu_button_listener.h"
#include "ui/views/controls/menu/menu_runner.h"
#include "ui/views/layout/fill_layout.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
using base::ASCIIToUTF16;
namespace views {
namespace examples {
namespace {
class ExampleMenuModel : public ui::SimpleMenuModel,
public ui::SimpleMenuModel::Delegate {
public:
ExampleMenuModel();
// ui::SimpleMenuModel::Delegate:
bool IsCommandIdChecked(int command_id) const override;
bool IsCommandIdEnabled(int command_id) const override;
bool GetAcceleratorForCommandId(int command_id,
ui::Accelerator* accelerator) override;
void ExecuteCommand(int command_id, int event_flags) override;
private:
enum GroupID {
GROUP_MAKE_DECISION,
};
enum CommandID {
COMMAND_DO_SOMETHING,
COMMAND_SELECT_ASCII,
COMMAND_SELECT_UTF8,
COMMAND_SELECT_UTF16,
COMMAND_CHECK_APPLE,
COMMAND_CHECK_ORANGE,
COMMAND_CHECK_KIWI,
COMMAND_GO_HOME,
};
scoped_ptr<ui::SimpleMenuModel> submenu_;
std::set<int> checked_fruits_;
int current_encoding_command_id_;
DISALLOW_COPY_AND_ASSIGN(ExampleMenuModel);
};
class ExampleMenuButton : public MenuButton, public MenuButtonListener {
public:
explicit ExampleMenuButton(const base::string16& test);
~ExampleMenuButton() override;
private:
// MenuButtonListener:
void OnMenuButtonClicked(View* source, const gfx::Point& point) override;
ui::SimpleMenuModel* GetMenuModel();
scoped_ptr<ExampleMenuModel> menu_model_;
scoped_ptr<MenuRunner> menu_runner_;
DISALLOW_COPY_AND_ASSIGN(ExampleMenuButton);
};
// ExampleMenuModel ---------------------------------------------------------
ExampleMenuModel::ExampleMenuModel()
: ui::SimpleMenuModel(this),
current_encoding_command_id_(COMMAND_SELECT_ASCII) {
AddItem(COMMAND_DO_SOMETHING, ASCIIToUTF16("Do Something"));
AddSeparator(ui::NORMAL_SEPARATOR);
AddRadioItem(COMMAND_SELECT_ASCII, ASCIIToUTF16("ASCII"),
GROUP_MAKE_DECISION);
AddRadioItem(COMMAND_SELECT_UTF8, ASCIIToUTF16("UTF-8"),
GROUP_MAKE_DECISION);
AddRadioItem(COMMAND_SELECT_UTF16, ASCIIToUTF16("UTF-16"),
GROUP_MAKE_DECISION);
AddSeparator(ui::NORMAL_SEPARATOR);
AddCheckItem(COMMAND_CHECK_APPLE, ASCIIToUTF16("Apple"));
AddCheckItem(COMMAND_CHECK_ORANGE, ASCIIToUTF16("Orange"));
AddCheckItem(COMMAND_CHECK_KIWI, ASCIIToUTF16("Kiwi"));
AddSeparator(ui::NORMAL_SEPARATOR);
AddItem(COMMAND_GO_HOME, ASCIIToUTF16("Go Home"));
submenu_.reset(new ui::SimpleMenuModel(this));
submenu_->AddItem(COMMAND_DO_SOMETHING, ASCIIToUTF16("Do Something 2"));
AddSubMenu(0, ASCIIToUTF16("Submenu"), submenu_.get());
}
bool ExampleMenuModel::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;
}
bool ExampleMenuModel::IsCommandIdEnabled(int command_id) const {
// All commands are enabled except for COMMAND_GO_HOME.
return command_id != COMMAND_GO_HOME;
}
bool ExampleMenuModel::GetAcceleratorForCommandId(
int command_id,
ui::Accelerator* accelerator) {
// We don't use this in the example.
return false;
}
void ExampleMenuModel::ExecuteCommand(int command_id, int event_flags) {
switch (command_id) {
case COMMAND_DO_SOMETHING: {
VLOG(0) << "Done something";
break;
}
// Radio items.
case COMMAND_SELECT_ASCII: {
current_encoding_command_id_ = COMMAND_SELECT_ASCII;
VLOG(0) << "Selected ASCII";
break;
}
case COMMAND_SELECT_UTF8: {
current_encoding_command_id_ = COMMAND_SELECT_UTF8;
VLOG(0) << "Selected UTF-8";
break;
}
case COMMAND_SELECT_UTF16: {
current_encoding_command_id_ = COMMAND_SELECT_UTF16;
VLOG(0) << "Selected UTF-16";
break;
}
// Check items.
case COMMAND_CHECK_APPLE:
case COMMAND_CHECK_ORANGE:
case COMMAND_CHECK_KIWI: {
// Print what fruit is checked.
const char* checked_fruit = "";
if (command_id == COMMAND_CHECK_APPLE)
checked_fruit = "Apple";
else if (command_id == COMMAND_CHECK_ORANGE)
checked_fruit = "Orange";
else if (command_id == COMMAND_CHECK_KIWI)
checked_fruit = "Kiwi";
// Update the check status.
std::set<int>::iterator iter = checked_fruits_.find(command_id);
if (iter == checked_fruits_.end()) {
DVLOG(1) << "Checked " << checked_fruit;
checked_fruits_.insert(command_id);
} else {
DVLOG(1) << "Unchecked " << checked_fruit;
checked_fruits_.erase(iter);
}
break;
}
}
}
// ExampleMenuButton -----------------------------------------------------------
ExampleMenuButton::ExampleMenuButton(const base::string16& test)
: MenuButton(NULL, test, this, true) {
}
ExampleMenuButton::~ExampleMenuButton() {
}
void ExampleMenuButton::OnMenuButtonClicked(View* source,
const gfx::Point& point) {
menu_runner_.reset(new MenuRunner(GetMenuModel(), MenuRunner::HAS_MNEMONICS));
if (menu_runner_->RunMenuAt(source->GetWidget()->GetTopLevelWidget(),
this,
gfx::Rect(point, gfx::Size()),
MENU_ANCHOR_TOPRIGHT,
ui::MENU_SOURCE_NONE) ==
MenuRunner::MENU_DELETED) {
return;
}
}
ui::SimpleMenuModel* ExampleMenuButton::GetMenuModel() {
if (!menu_model_.get())
menu_model_.reset(new ExampleMenuModel);
return menu_model_.get();
}
} // namespace
MenuExample::MenuExample() : ExampleBase("Menu") {
}
MenuExample::~MenuExample() {
}
void MenuExample::CreateExampleView(View* container) {
// We add a button to open a menu.
ExampleMenuButton* menu_button = new ExampleMenuButton(
ASCIIToUTF16("Open a menu"));
container->SetLayoutManager(new FillLayout);
container->AddChildView(menu_button);
}
} // namespace examples
} // namespace views
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