michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsISupports.idl"
michael@0: #include "domstubs.idl"
michael@0: 
michael@0: interface nsIHTMLObjectResizeListener;
michael@0: 
michael@0: [scriptable, uuid(8b396020-69d3-451f-80c1-1a96a7da25a9)]
michael@0: 
michael@0: interface nsIHTMLObjectResizer : nsISupports
michael@0: {
michael@0: %{C++
michael@0:   typedef short EResizerLocation;
michael@0: %}
michael@0:   const short eTopLeft = 0;
michael@0:   const short eTop = 1;
michael@0:   const short eTopRight = 2;
michael@0:   const short eLeft = 3;
michael@0:   const short eRight = 4;
michael@0:   const short eBottomLeft = 5;
michael@0:   const short eBottom = 6;
michael@0:   const short eBottomRight = 7;
michael@0: 
michael@0:   /**
michael@0:    * the element currently displaying resizers
michael@0:    */
michael@0:   readonly attribute nsIDOMElement resizedObject;
michael@0: 
michael@0:   /**
michael@0:    * a boolean indicating if object resizing is enabled in the editor
michael@0:    */
michael@0:   attribute boolean objectResizingEnabled;
michael@0: 
michael@0:   /**
michael@0:    * Shows active resizers around an element's frame
michael@0:    * @param aResizedElement [IN] a DOM Element
michael@0:    */
michael@0:   void showResizers(in nsIDOMElement aResizedElement);
michael@0: 
michael@0:   /**
michael@0:    * Hide resizers if they are visible
michael@0:    */
michael@0:   void hideResizers();
michael@0: 
michael@0:   /**
michael@0:    * Refresh visible resizers
michael@0:    */
michael@0:   void refreshResizers();
michael@0: 
michael@0:   /**
michael@0:    * event callback when a mouse button is pressed
michael@0:    * @param aX      [IN] horizontal position of the pointer
michael@0:    * @param aY      [IN] vertical position of the pointer
michael@0:    * @param aTarget [IN] the element triggering the event
michael@0:    * @param aMouseEvent [IN] the event
michael@0:    */
michael@0:   void mouseDown(in long aX, in long aY,
michael@0:                  in nsIDOMElement aTarget, in nsIDOMEvent aMouseEvent);
michael@0: 
michael@0:   /**
michael@0:    * event callback when a mouse button is released
michael@0:    * @param aX      [IN] horizontal position of the pointer
michael@0:    * @param aY      [IN] vertical position of the pointer
michael@0:    * @param aTarget [IN] the element triggering the event
michael@0:    */
michael@0:   void mouseUp(in long aX, in long aY,
michael@0:                in nsIDOMElement aTarget);
michael@0: 
michael@0:   /**
michael@0:    * event callback when the mouse pointer is moved
michael@0:    * @param aMouseEvent [IN] the event
michael@0:    */
michael@0:   void mouseMove(in nsIDOMEvent aMouseEvent);
michael@0: 
michael@0:   /* Event Listeners */
michael@0: 
michael@0:   /**
michael@0:    * Creates a resize listener that can be used to get notifications
michael@0:    * that the user started to resize an object or finalized such an operation
michael@0:    * @param aListener [IN] an instance of nsIHTMLObjectResizeListener
michael@0:    */
michael@0:   void addObjectResizeEventListener(in nsIHTMLObjectResizeListener aListener);
michael@0: 
michael@0:   /**
michael@0:    * Deletes a resize listener
michael@0:    * @param aListener [IN] an instance of nsIHTMLObjectResizeListener
michael@0:    */
michael@0:   void removeObjectResizeEventListener(in nsIHTMLObjectResizeListener aListener);
michael@0: };
michael@0: