253 lines
7.8 KiB
C
253 lines
7.8 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_MENUITEM_H__
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#define __GUI_MENUITEM_H__
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#include <NsCore/Noesis.h>
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#include <NsCore/ReflectionDeclareEnum.h>
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#include <NsGui/CoreApi.h>
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#include <NsGui/HeaderedItemsControl.h>
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#include <NsGui/ICommandSource.h>
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namespace Noesis
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{
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class PopupLayer;
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class ItemCollection;
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NS_WARNING_PUSH
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NS_MSVC_WARNING_DISABLE(4251 4275)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Represents a selectable item inside a Menu or ContextMenu.
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///
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/// http://msdn.microsoft.com/en-us/library/system.windows.controls.menuitem.aspx
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API MenuItem: public HeaderedItemsControl, public ICommandSource
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{
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public:
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MenuItem();
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~MenuItem();
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/// Gets or sets the parameter to pass to the Command property of a MenuItem
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//@{
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BaseComponent* GetCommandParameter() const override final;
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void SetCommandParameter(BaseComponent* parameter);
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//@}
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/// Gets or sets the command associated with the menu item
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//@{
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ICommand* GetCommand() const override final;
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void SetCommand(ICommand* command);
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//@}
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/// Gets or sets the target element on which to raise the specified command
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//@{
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UIElement* GetCommandTarget() const override final;
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void SetCommandTarget(UIElement* target);
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//@}
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/// Gets or sets the icon that appears in a MenuItem
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//@{
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BaseComponent* GetIcon() const;
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void SetIcon(BaseComponent* icon);
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//@}
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/// Sets the text describing an input gesture that will call the command tied to the specified
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/// item
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//@{
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const char* GetInputGestureText() const;
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void SetInputGestureText(const char* text);
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//@}
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/// Gets a value that indicates whether a MenuItem can be checked
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//@{
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bool GetIsCheckable() const;
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void SetIsCheckable(bool value);
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//@}
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/// Gets or sets a value that indicates whether the MenuItem is checked
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//@{
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bool GetIsChecked() const;
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void SetIsChecked(bool value);
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//@}
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/// Gets a value that indicates whether a MenuItem is highlighted
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bool GetIsHighlighted() const;
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/// Gets a value that indicates whether a MenuItem is pressed
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bool GetIsPressed() const;
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/// Gets or sets a value that indicates whether the submenu of the MenuItem is open
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//@{
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bool GetIsSubmenuOpen() const;
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void SetIsSubmenuOpen(bool value);
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//@}
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/// Gets a value that indicates the role of a MenuItem
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MenuItemRole GetRole() const;
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/// Gets or sets a value that indicates that the submenu in which this MenuItem is located
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/// should not close when this item is clicked
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//@{
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bool GetStaysOpenOnClick() const;
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void SetStaysOpenOnClick(bool value);
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//@}
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/// Occurs when a menu item is checked
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UIElement::RoutedEvent_<RoutedEventHandler> Checked();
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/// Occurs when a MenuItem is clicked
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UIElement::RoutedEvent_<RoutedEventHandler> Click();
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/// Occurs when the state of the IsSubmenuOpen property changes to false
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UIElement::RoutedEvent_<RoutedEventHandler> SubmenuClosed();
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/// Occurs when the state of the IsSubmenuOpen property changes to true
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UIElement::RoutedEvent_<RoutedEventHandler> SubmenuOpened();
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/// Occurs when a MenuItem is unchecked
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UIElement::RoutedEvent_<RoutedEventHandler> Unchecked();
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NS_IMPLEMENT_INTERFACE_FIXUP
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public:
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static const DependencyProperty* CommandParameterProperty;
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static const DependencyProperty* CommandProperty;
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static const DependencyProperty* CommandTargetProperty;
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static const DependencyProperty* IconProperty;
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static const DependencyProperty* InputGestureTextProperty;
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static const DependencyProperty* IsCheckableProperty;
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static const DependencyProperty* IsCheckedProperty;
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static const DependencyProperty* IsHighlightedProperty;
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static const DependencyProperty* IsPressedProperty;
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static const DependencyProperty* IsSubmenuOpenProperty;
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static const DependencyProperty* RoleProperty;
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static const DependencyProperty* StaysOpenOnClickProperty;
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static const DependencyProperty* SeparatorStyleKey;
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static const RoutedEvent* CheckedEvent;
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static const RoutedEvent* ClickEvent;
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static const RoutedEvent* SubmenuClosedEvent;
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static const RoutedEvent* SubmenuOpenedEvent;
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static const RoutedEvent* UncheckedEvent;
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protected:
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/// From DependencyObject
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//@{
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void OnInit() override;
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bool OnPropertyChanged(const DependencyPropertyChangedEventArgs& args) override;
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//@}
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/// From Visual
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//@{
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void OnDisconnectFromView() override;
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//@}
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/// From UIElement
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//@{
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bool IsEnabledCore() const override;
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void OnMouseEnter(const MouseEventArgs& e) override;
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void OnMouseLeave(const MouseEventArgs& e) override;
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void OnMouseMove(const MouseEventArgs& e) override;
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void OnMouseLeftButtonDown(const MouseButtonEventArgs& e) override;
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void OnMouseLeftButtonUp(const MouseButtonEventArgs& e) override;
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void OnMouseRightButtonDown(const MouseButtonEventArgs& e) override;
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void OnMouseRightButtonUp(const MouseButtonEventArgs& e) override;
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void OnGotKeyboardFocus(const KeyboardFocusChangedEventArgs& e) override;
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void OnLostKeyboardFocus(const KeyboardFocusChangedEventArgs& e) override;
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void OnKeyDown(const KeyEventArgs& e) override;
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//@}
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/// From FrameworkElement
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//@{
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void OnLogicalParentChanged(FrameworkElement* oldParent) override;
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//@}
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/// From ItemsControl
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//@{
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Ptr<DependencyObject> GetContainerForItemOverride() const override;
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bool IsItemItsOwnContainerOverride(BaseComponent* item) const override;
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void ApplyItemContainerStyle(DependencyObject* container) const override;
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void OnItemsChanged(const NotifyCollectionChangedEventArgs& args) override;
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//@}
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private:
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friend class ContextMenu;
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static void SetIsInsideContextMenu(DependencyObject* element, bool value);
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bool GetIsInsideContextMenu() const;
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bool IsSeparator() const;
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void OnIsCheckedChanged(bool isChecked);
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void OnIsSubmenuOpenChanged(bool isOpen);
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void OnHeaderClicked();
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void OnItemClicked();
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void OnDirectlyOverChanged(UIElement* directlyOver);
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void OnMouseButtonDown(const MouseButtonEventArgs& e, bool clickAllowed);
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void OnMouseButtonUp(const MouseButtonEventArgs& e, bool clickAllowed);
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void UpdateIsPressed();
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void UpdateSubmenuVisibility(bool visible, bool focus = false);
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void UpdateRole();
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void ShowSubmenu();
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void HideSubmenu();
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static void UpdateCommandCanExecute(ItemCollection* items);
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void ActivateMenu(bool activate);
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void NavigateMenu(FocusNavigationDirection direction);
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void NavigateSubmenu(FocusNavigationDirection direction);
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void CloseAncestors();
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void CloseDescendants();
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void RegisterMouse();
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void UnregisterMouse();
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void RegisterCommand(ICommand* command);
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void UnregisterCommand(ICommand* command);
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void UpdateCanExecute(ICommand* command);
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void OnCanExecuteChanged(BaseComponent* sender, const EventArgs& e);
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friend class Popup;
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void SetSubmenuLayer(PopupLayer* submenuLayer);
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private:
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static const DependencyProperty* IsInsideContextMenuProperty;
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PopupLayer* mSubmenuLayer;
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union
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{
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uint8_t mAllFlags;
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struct
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{
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bool ownClose:1;
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bool canExecute:1;
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bool isMouseRegistered:1;
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} mFlags;
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};
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NS_DECLARE_REFLECTION(MenuItem, HeaderedItemsControl)
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};
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NS_WARNING_POP
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}
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#endif
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