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// Copyright 2012 The Chromium Authors
// 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 <memory>
#include <set>
#include <utility>
#include "base/logging.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/base/mojom/menu_source_type.mojom.h"
#include "ui/menus/simple_menu_model.h"
#include "ui/views/border.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/controls/menu/menu_runner.h"
#include "ui/views/examples/examples_color_id.h"
#include "ui/views/examples/grit/views_examples_resources.h"
#include "ui/views/layout/flex_layout.h"
#include "ui/views/layout/layout_provider.h"
#include "ui/views/metadata/view_factory.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
using l10n_util::GetStringUTF16;
using l10n_util::GetStringUTF8;
namespace views::examples {
class ExampleMenuModel : public ui::SimpleMenuModel,
public ui::SimpleMenuModel::Delegate {
public:
ExampleMenuModel();
ExampleMenuModel(const ExampleMenuModel&) = delete;
ExampleMenuModel& operator=(const ExampleMenuModel&) = delete;
// ui::SimpleMenuModel::Delegate:
bool IsCommandIdChecked(int command_id) const override;
bool IsCommandIdEnabled(int command_id) const 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,
};
std::unique_ptr<ui::SimpleMenuModel> submenu_;
std::set<int> checked_fruits_;
int current_encoding_command_id_ = COMMAND_SELECT_ASCII;
};
class ExampleMenuButton : public MenuButton {
METADATA_HEADER(ExampleMenuButton, MenuButton)
public:
explicit ExampleMenuButton(const std::u16string& test = std::u16string());
ExampleMenuButton(const ExampleMenuButton&) = delete;
ExampleMenuButton& operator=(const ExampleMenuButton&) = delete;
~ExampleMenuButton() override;
private:
void ButtonPressed();
ui::SimpleMenuModel* GetMenuModel();
std::unique_ptr<ExampleMenuModel> menu_model_;
std::unique_ptr<MenuRunner> menu_runner_;
};
BEGIN_METADATA(ExampleMenuButton)
END_METADATA
BEGIN_VIEW_BUILDER(/* no export */, ExampleMenuButton, MenuButton)
END_VIEW_BUILDER
} // namespace views::examples
DEFINE_VIEW_BUILDER(/* no export */, views::examples::ExampleMenuButton)
namespace views::examples {
// ExampleMenuModel ---------------------------------------------------------
ExampleMenuModel::ExampleMenuModel() : ui::SimpleMenuModel(this) {
AddItem(COMMAND_DO_SOMETHING, GetStringUTF16(IDS_MENU_DO_SOMETHING_LABEL));
AddSeparator(ui::NORMAL_SEPARATOR);
AddRadioItem(COMMAND_SELECT_ASCII, GetStringUTF16(IDS_MENU_ASCII_LABEL),
GROUP_MAKE_DECISION);
AddRadioItem(COMMAND_SELECT_UTF8, GetStringUTF16(IDS_MENU_UTF8_LABEL),
GROUP_MAKE_DECISION);
AddRadioItem(COMMAND_SELECT_UTF16, GetStringUTF16(IDS_MENU_UTF16_LABEL),
GROUP_MAKE_DECISION);
AddSeparator(ui::NORMAL_SEPARATOR);
AddCheckItem(COMMAND_CHECK_APPLE, GetStringUTF16(IDS_MENU_APPLE_LABEL));
AddCheckItem(COMMAND_CHECK_ORANGE, GetStringUTF16(IDS_MENU_ORANGE_LABEL));
AddCheckItem(COMMAND_CHECK_KIWI, GetStringUTF16(IDS_MENU_KIWI_LABEL));
AddSeparator(ui::NORMAL_SEPARATOR);
AddItem(COMMAND_GO_HOME, GetStringUTF16(IDS_MENU_GO_HOME_LABEL));
submenu_ = std::make_unique<ui::SimpleMenuModel>(this);
submenu_->AddItem(COMMAND_DO_SOMETHING,
GetStringUTF16(IDS_MENU_DO_SOMETHING_2_LABEL));
AddSubMenu(0, GetStringUTF16(IDS_MENU_SUBMENU_LABEL), 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;
}
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.
auto 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 std::u16string& test)
: MenuButton(base::BindRepeating(&ExampleMenuButton::ButtonPressed,
base::Unretained(this)),
test) {}
ExampleMenuButton::~ExampleMenuButton() = default;
void ExampleMenuButton::ButtonPressed() {
menu_runner_ =
std::make_unique<MenuRunner>(GetMenuModel(), MenuRunner::HAS_MNEMONICS);
gfx::Point screen_loc;
views::View::ConvertPointToScreen(this, &screen_loc);
gfx::Rect bounds(screen_loc, this->size());
menu_runner_->RunMenuAt(GetWidget()->GetTopLevelWidget(), button_controller(),
bounds, MenuAnchorPosition::kTopLeft,
ui::mojom::MenuSourceType::kNone);
}
ui::SimpleMenuModel* ExampleMenuButton::GetMenuModel() {
if (!menu_model_) {
menu_model_ = std::make_unique<ExampleMenuModel>();
}
return menu_model_.get();
}
MenuExample::MenuExample()
: ExampleBase(GetStringUTF8(IDS_MENU_SELECT_LABEL).c_str()) {}
MenuExample::~MenuExample() = default;
void MenuExample::CreateExampleView(View* container) {
container->SetLayoutManager(std::make_unique<FlexLayout>())
->SetInteriorMargin(gfx::Insets(10))
.SetCrossAxisAlignment(LayoutAlignment::kStart);
// We add a button to open a menu.
auto example_menu_button = Builder<ExampleMenuButton>()
.SetText(GetStringUTF16(IDS_MENU_BUTTON_LABEL))
.Build();
example_menu_button->SetBorder(CreatePaddedBorder(
CreateRoundedRectBorder(1, 5, kColorMenuButtonExampleBorder),
LayoutProvider::Get()->GetInsetsMetric(
InsetsMetric::INSETS_LABEL_BUTTON)));
container->AddChildView(std::move(example_menu_button));
}
} // namespace views::examples
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