gecko-dev/widget/public/nsIMenuItem.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * for the specific language governing rights and limitations under the
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 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
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#ifndef nsIMenuItem_h__
#define nsIMenuItem_h__

#include "prtypes.h"
#include "nsISupports.h"
#include "nsString.h"

#include "nsIDocShell.h"
#include "nsIDOMElement.h"

// {F5E4F801-DFD2-4DE3-8708-7914F2D4710D}
#define NS_IMENUITEM_IID      \
{ 0xF5E4F801, 0xDFD2, 0x4DE3, \
{ 0x87, 0x08, 0x79, 0x14, 0xF2, 0xD4, 0x71, 0x0D } }

class nsIMenu;
class nsIWidget;
class nsIMenuListener;
class nsIChangeManager;
class nsIContent;

enum {
  knsMenuItemNoModifier      = 0,
  knsMenuItemShiftModifier   = (1 << 0),
  knsMenuItemAltModifier     = (1 << 1),
  knsMenuItemControlModifier = (1 << 2),
  knsMenuItemCommandModifier = (1 << 3)
};

/**
 * MenuItem widget
 */
class nsIMenuItem : public nsISupports {

  public:
    NS_DECLARE_STATIC_IID_ACCESSOR(NS_IMENUITEM_IID)

    enum EMenuItemType { eRegular = 0, eCheckbox, eRadio } ;

   /**
    * Creates the MenuItem
    *
    */
    NS_IMETHOD Create ( nsIMenu* aParent, const nsString & aLabel, PRBool isSeparator, 
                          EMenuItemType aItemType, PRBool aEnabled, 
                          nsIChangeManager* aManager, nsIDocShell* aShell, nsIContent* aNode ) = 0;
    
   /**
    * Get the MenuItem label
    *
    */
    NS_IMETHOD GetLabel(nsString &aText) = 0;

   /**
    * Set the Menu shortcut char
    *
    */
    NS_IMETHOD SetShortcutChar(const nsString &aText) = 0;
  
    /**
    * Get the Menu shortcut char
    *
    */
    NS_IMETHOD GetShortcutChar(nsString &aText) = 0;

   /**
    * Gets whether the item is enabled or disabled
    *
    */
    NS_IMETHOD GetEnabled(PRBool *aIsEnabled) = 0;

   /**
    * Sets whether the item is checked or not
    *
    */
    NS_IMETHOD SetChecked(PRBool aIsEnabled) = 0;

   /**
    * Gets whether the item is checked or not
    *
    */
    NS_IMETHOD GetChecked(PRBool *aIsEnabled) = 0;

   /**
    * Gets whether the item is a checkbox or radio
    *
    */
    NS_IMETHOD GetMenuItemType(EMenuItemType *aType) = 0;
    
   /**
    * Gets Native Menu Handle
    *
    */
    NS_IMETHOD GetNativeData(void*& aData) = 0;

   /**
    * Adds menu listener
    *
    */
    NS_IMETHOD AddMenuListener(nsIMenuListener * aMenuListener) = 0;

   /**
    * Removes menu listener
    *
    */
    NS_IMETHOD RemoveMenuListener(nsIMenuListener * aMenuListener) = 0;

   /**
    * Indicates whether it is a separator
    *
    */
    NS_IMETHOD IsSeparator(PRBool & aIsSep) = 0;

   /**
    * Executes the "cached" JavaScript Command 
    * @return NS_OK if the command was executed properly, otherwise an error code
    */
    NS_IMETHOD DoCommand() = 0;
    
    /**
     * Sends a DOM event to the menu item's content node 
     * @return NS_OK if the event was sent properly, otherwise an error code
     */
    NS_IMETHOD DispatchDOMEvent(const nsString &eventName, PRBool *preventDefaultCalled) = 0;

    /**
    *
    */
    NS_IMETHOD SetModifiers(PRUint8 aModifiers) = 0;
    NS_IMETHOD GetModifiers(PRUint8 * aModifiers) = 0;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIMenuItem, NS_IMENUITEM_IID)

#endif