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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/controls/menu/menu_delegate.h"
#include "base/functional/callback_helpers.h"
#include "base/notreached.h"
#include "ui/base/dragdrop/mojom/drag_drop_types.mojom.h"
#include "ui/base/mojom/menu_source_type.mojom-forward.h"
#include "ui/events/event.h"
#include "ui/views/controls/menu/menu_config.h"
#include "ui/views/controls/menu/menu_item_view.h"
namespace views {
MenuDelegate::~MenuDelegate() = default;
bool MenuDelegate::IsItemChecked(int id) const {
return false;
}
std::u16string MenuDelegate::GetLabel(int id) const {
return std::u16string();
}
const gfx::FontList* MenuDelegate::GetLabelFontList(int id) const {
return nullptr;
}
std::optional<SkColor> MenuDelegate::GetLabelColor(int id) const {
return std::nullopt;
}
std::u16string MenuDelegate::GetTooltipText(
int id,
const gfx::Point& screen_loc) const {
return std::u16string();
}
bool MenuDelegate::GetAccelerator(int id, ui::Accelerator* accelerator) const {
return false;
}
bool MenuDelegate::ShowContextMenu(MenuItemView* source,
int id,
const gfx::Point& p,
ui::mojom::MenuSourceType source_type) {
return false;
}
bool MenuDelegate::SupportsCommand(int id) const {
return true;
}
bool MenuDelegate::IsCommandEnabled(int id) const {
return true;
}
bool MenuDelegate::IsCommandVisible(int id) const {
return true;
}
bool MenuDelegate::GetContextualLabel(int id, std::u16string* out) const {
return false;
}
bool MenuDelegate::ShouldCloseAllMenusOnExecute(int id) {
return true;
}
void MenuDelegate::ExecuteCommand(int id, int mouse_event_flags) {
ExecuteCommand(id);
}
bool MenuDelegate::ShouldExecuteCommandWithoutClosingMenu(int id,
const ui::Event& e) {
return false;
}
bool MenuDelegate::IsTriggerableEvent(MenuItemView* source,
const ui::Event& e) {
// By default, a sub-menu is not triggerable.
// Subclass can override this behavior.
if (source->GetType() == MenuItemView::Type::kSubMenu) {
return false;
}
// Trigger the action by click or click-like event.
return e.type() == ui::EventType::kGestureTap ||
e.type() == ui::EventType::kGestureTapDown ||
(e.IsMouseEvent() &&
(e.flags() & (ui::EF_LEFT_MOUSE_BUTTON | ui::EF_RIGHT_MOUSE_BUTTON)));
}
bool MenuDelegate::CanDrop(MenuItemView* menu, const OSExchangeData& data) {
return false;
}
bool MenuDelegate::GetDropFormats(
MenuItemView* menu,
int* formats,
std::set<ui::ClipboardFormatType>* format_types) {
return false;
}
bool MenuDelegate::AreDropTypesRequired(MenuItemView* menu) {
return false;
}
ui::mojom::DragOperation MenuDelegate::GetDropOperation(
MenuItemView* item,
const ui::DropTargetEvent& event,
DropPosition* position) {
NOTREACHED() << "If you override CanDrop, you must override this too";
}
views::View::DropCallback MenuDelegate::GetDropCallback(
MenuItemView* menu,
DropPosition position,
const ui::DropTargetEvent& event) {
NOTREACHED() << "If you override CanDrop, you must override this too";
}
bool MenuDelegate::CanDrag(MenuItemView* menu) {
return false;
}
void MenuDelegate::WriteDragData(MenuItemView* sender, OSExchangeData* data) {
NOTREACHED() << "If you override CanDrag, you must override this too.";
}
int MenuDelegate::GetDragOperations(MenuItemView* sender) {
NOTREACHED() << "If you override CanDrag, you must override this too.";
}
bool MenuDelegate::ShouldCloseOnDragComplete() {
return true;
}
MenuItemView* MenuDelegate::GetSiblingMenu(MenuItemView* menu,
const gfx::Point& screen_point,
MenuAnchorPosition* anchor,
bool* has_mnemonics,
MenuButton** button) {
return nullptr;
}
int MenuDelegate::GetMaxWidthForMenu(MenuItemView* menu) {
// NOTE: this needs to be large enough to accommodate the wrench menu with
// big fonts.
return 800;
}
void MenuDelegate::WillShowMenu(MenuItemView* menu) {}
void MenuDelegate::WillHideMenu(MenuItemView* menu) {}
bool MenuDelegate::ShouldTryPositioningBesideAnchor() const {
return true;
}
bool MenuDelegate::IsTearingDown() const {
return false;
}
} // namespace views
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