svgevent.java

一个用Java写的

/******************************************************************
 * Copyright (C) 2002-2006 Andrew Girow. All rights reserved.     *
 * ---------------------------------------------------------------*
 * This software is published under the terms of the TinyLine     *
 * License, a copy of which has been included with this           *
 * distribution in the TINYLINE_LICENSE.TXT file.                 *
 *                                                                *
 * For more information on the TinyLine,                          *
 * please see <http://www.tinyline.com/>.                         *
 *****************************************************************/


package com.tinyline.app;

import org.w3c.dom.events.Event;
import org.w3c.dom.events.EventTarget;

/**
 * The <tt>SVGEvent</tt> class is used to provide contextual information
 * about an event to the handler processing the event.
 * <p>
 * SVGT 1.1 only allows interactivity with declarative animation.
 * The list of event-symbols available for a given event-base element
 * is the list of event attributes available for the given element as
 * defined by the SVG DTD, with the one difference that the leading
 * 'on' is removed from the event name (i.e., the animation event name
 * is 'click', not 'onclick').
 * <p>
 * @author Andrew Girow
 * @version 1.9
 */
public class SVGEvent implements Event
{

/** The Event Names */
public static String [] EVENT_NAMES =
{
"animate",
"begin",
"click",
"end",
"error",
"focushide",
"focusin",
"focusnext",
"focusout",
"focuspressed",
"focusprev",
"focusshow",
"load",
"origview",
"pauseresume",
"quality",
"repeat",
"scroll",
"unload",
"update",
"zoom"
		 };

/** Internal Event. Occurs when an element is animated. */
public static final int EVENT_ANIMATE             =   0;
/** Occurs when an animation element begins. */
public static final int EVENT_BEGIN               =   1;
/** Occurs when the pointing device button is clicked over an element. */
public static final int EVENT_CLICK               =   2;
/** Occurs when an animation element ends. */
public static final int EVENT_END                 =   3;
/** The error event occurs when an element does not load properly
 * or when an error occurs during script execution. */
public static final int EVENT_ERROR               =   4;

/** Occurs when a list of linked elements is being hided. */
public static final int EVENT_FOCUSHIDE           =   5;
/** Occurs when an element receives focus. */
public static final int EVENT_FOCUSIN             =   6;
/** Occurs when an focus is being shifted to the next linked element. */
public static final int EVENT_FOCUSNEXT           =   7;
/** Occurs when an element loses focus. */
public static final int EVENT_FOCUSOUT            =   8;
/** Occurs when an focus is being shifted to the previous linked element. */
public static final int EVENT_FOCUSPRESSED        =   9;
/** Occurs when an focus is being shifted to the previous linked element. */
public static final int EVENT_FOCUSPREV           =   10;
/** Occurs when a list of linked elements is being showed. */
public static final int EVENT_FOCUSSHOW           =   11;


/** The event is triggered at the point at which the user agent
 * has fully parsed the element and its descendants and is ready
 * to act appropriately upon that element, such as being ready
 * to render the element to the target device. */
public static final int EVENT_LOAD                =   12;

/** Occurs when a document view is being returned to the original one. */
public static final int EVENT_ORIGVIEW            =   13;

/** Occurs when animations are being paused or resumed. */
public static final int EVENT_PAUSERESUME         =   14;

/** Occurs when an antialising is being switched on or off. */
public static final int EVENT_QUALITY             =   15;

/** Occurs when an animation element repeats. */
public static final int EVENT_REPEAT              =   16;

/** Occurs when a document view is being shifted along the
 * X or Y or both axis */
public static final int EVENT_SCROLL              =   17;
/** The unload event occurs when the DOM implementation
 * removes a document from a window or frame. */
public static final int EVENT_UNLOAD              =   18;
/** Internal Event. Occurs when an element is updated. */
public static final int EVENT_UPDATE              =   19;
/** Occurs when the zoom level of a document view is being changed. */
public static final int EVENT_ZOOM                =   20;
/** The unknown event. */
public static final int EVENT_UNKNOWN             =   21;

    /** <b>uDOM:</b> Returns the event type */
    public String getType()
    {
	if(id >= EVENT_UNKNOWN)
	{
	   return "unknown";
	}
	return EVENT_NAMES[id];
    }

    /** <b>uDOM:</b> Returns the current EventTarget to which the event was originally dispatched. */
    public EventTarget getCurrentTarget()
    {
        return eventTarget;
    }
    /**
     * Creates a new <tt>SVGEvent</tt> object.
     * @param id  The event type.
     * @param data  The event data.
     */
    public SVGEvent(int id, Object data)
    {
        this.id = id;
        this.data = data;
    }

    /** The event type */
    public int id;
    /** The event data */
    public Object data;
    /** The event target */
    EventTarget eventTarget;
    /** The next event */
    SVGEvent next;
}