File: Element.position.html

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<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />    
  <title>The source code</title>
    <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
    <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
</head>
<body  onload="prettyPrint();">
    <pre class="prettyprint lang-js">/*!
 * Ext JS Library 3.4.0
 * Copyright(c) 2006-2011 Sencha Inc.
 * licensing@sencha.com
 * http://www.sencha.com/license
 */
/**
 * @class Ext.Element
 */
(function(){
var D = Ext.lib.Dom,
        LEFT = "left",
        RIGHT = "right",
        TOP = "top",
        BOTTOM = "bottom",
        POSITION = "position",
        STATIC = "static",
        RELATIVE = "relative",
        AUTO = "auto",
        ZINDEX = "z-index";

Ext.Element.addMethods({
	<div id="method-Ext.Element-getX"></div>/**
      * Gets the current X position of the element based on page coordinates.  Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
      * @return {Number} The X position of the element
      */
    getX : function(){
        return D.getX(this.dom);
    },

    <div id="method-Ext.Element-getY"></div>/**
      * Gets the current Y position of the element based on page coordinates.  Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
      * @return {Number} The Y position of the element
      */
    getY : function(){
        return D.getY(this.dom);
    },

    <div id="method-Ext.Element-getXY"></div>/**
      * Gets the current position of the element based on page coordinates.  Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
      * @return {Array} The XY position of the element
      */
    getXY : function(){
        return D.getXY(this.dom);
    },

    <div id="method-Ext.Element-getOffsetsTo"></div>/**
      * Returns the offsets of this element from the passed element. Both element must be part of the DOM tree and not have display:none to have page coordinates.
      * @param {Mixed} element The element to get the offsets from.
      * @return {Array} The XY page offsets (e.g. [100, -200])
      */
    getOffsetsTo : function(el){
        var o = this.getXY(),
        	e = Ext.fly(el, '_internal').getXY();
        return [o[0]-e[0],o[1]-e[1]];
    },

    <div id="method-Ext.Element-setX"></div>/**
     * Sets the X position of the element based on page coordinates.  Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
     * @param {Number} The X position of the element
     * @param {Boolean/Object} animate (optional) True for the default animation, or a standard Element animation config object
     * @return {Ext.Element} this
     */
    setX : function(x, animate){	    
	    return this.setXY([x, this.getY()], this.animTest(arguments, animate, 1));
    },

    <div id="method-Ext.Element-setY"></div>/**
     * Sets the Y position of the element based on page coordinates.  Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
     * @param {Number} The Y position of the element
     * @param {Boolean/Object} animate (optional) True for the default animation, or a standard Element animation config object
     * @return {Ext.Element} this
     */
    setY : function(y, animate){	    
	    return this.setXY([this.getX(), y], this.animTest(arguments, animate, 1));
    },

    <div id="method-Ext.Element-setLeft"></div>/**
     * Sets the element's left position directly using CSS style (instead of {@link #setX}).
     * @param {String} left The left CSS property value
     * @return {Ext.Element} this
     */
    setLeft : function(left){
        this.setStyle(LEFT, this.addUnits(left));
        return this;
    },

    <div id="method-Ext.Element-setTop"></div>/**
     * Sets the element's top position directly using CSS style (instead of {@link #setY}).
     * @param {String} top The top CSS property value
     * @return {Ext.Element} this
     */
    setTop : function(top){
        this.setStyle(TOP, this.addUnits(top));
        return this;
    },

    <div id="method-Ext.Element-setRight"></div>/**
     * Sets the element's CSS right style.
     * @param {String} right The right CSS property value
     * @return {Ext.Element} this
     */
    setRight : function(right){
        this.setStyle(RIGHT, this.addUnits(right));
        return this;
    },

    <div id="method-Ext.Element-setBottom"></div>/**
     * Sets the element's CSS bottom style.
     * @param {String} bottom The bottom CSS property value
     * @return {Ext.Element} this
     */
    setBottom : function(bottom){
        this.setStyle(BOTTOM, this.addUnits(bottom));
        return this;
    },

    <div id="method-Ext.Element-setXY"></div>/**
     * Sets the position of the element in page coordinates, regardless of how the element is positioned.
     * The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
     * @param {Array} pos Contains X & Y [x, y] values for new position (coordinates are page-based)
     * @param {Boolean/Object} animate (optional) True for the default animation, or a standard Element animation config object
     * @return {Ext.Element} this
     */
    setXY : function(pos, animate){
	    var me = this;
        if(!animate || !me.anim){
            D.setXY(me.dom, pos);
        }else{
            me.anim({points: {to: pos}}, me.preanim(arguments, 1), 'motion');
        }
        return me;
    },

    <div id="method-Ext.Element-setLocation"></div>/**
     * Sets the position of the element in page coordinates, regardless of how the element is positioned.
     * The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
     * @param {Number} x X value for new position (coordinates are page-based)
     * @param {Number} y Y value for new position (coordinates are page-based)
     * @param {Boolean/Object} animate (optional) True for the default animation, or a standard Element animation config object
     * @return {Ext.Element} this
     */
    setLocation : function(x, y, animate){
        return this.setXY([x, y], this.animTest(arguments, animate, 2));
    },

    <div id="method-Ext.Element-moveTo"></div>/**
     * Sets the position of the element in page coordinates, regardless of how the element is positioned.
     * The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
     * @param {Number} x X value for new position (coordinates are page-based)
     * @param {Number} y Y value for new position (coordinates are page-based)
     * @param {Boolean/Object} animate (optional) True for the default animation, or a standard Element animation config object
     * @return {Ext.Element} this
     */
    moveTo : function(x, y, animate){
        return this.setXY([x, y], this.animTest(arguments, animate, 2));        
    },    
    
    <div id="method-Ext.Element-getLeft"></div>/**
     * Gets the left X coordinate
     * @param {Boolean} local True to get the local css position instead of page coordinate
     * @return {Number}
     */
    getLeft : function(local){
	    return !local ? this.getX() : parseInt(this.getStyle(LEFT), 10) || 0;
    },

    <div id="method-Ext.Element-getRight"></div>/**
     * Gets the right X coordinate of the element (element X position + element width)
     * @param {Boolean} local True to get the local css position instead of page coordinate
     * @return {Number}
     */
    getRight : function(local){
	    var me = this;
	    return !local ? me.getX() + me.getWidth() : (me.getLeft(true) + me.getWidth()) || 0;
    },

    <div id="method-Ext.Element-getTop"></div>/**
     * Gets the top Y coordinate
     * @param {Boolean} local True to get the local css position instead of page coordinate
     * @return {Number}
     */
    getTop : function(local) {
	    return !local ? this.getY() : parseInt(this.getStyle(TOP), 10) || 0;
    },

    <div id="method-Ext.Element-getBottom"></div>/**
     * Gets the bottom Y coordinate of the element (element Y position + element height)
     * @param {Boolean} local True to get the local css position instead of page coordinate
     * @return {Number}
     */
    getBottom : function(local){
	    var me = this;
	    return !local ? me.getY() + me.getHeight() : (me.getTop(true) + me.getHeight()) || 0;
    },

    <div id="method-Ext.Element-position"></div>/**
    * Initializes positioning on this element. If a desired position is not passed, it will make the
    * the element positioned relative IF it is not already positioned.
    * @param {String} pos (optional) Positioning to use "relative", "absolute" or "fixed"
    * @param {Number} zIndex (optional) The zIndex to apply
    * @param {Number} x (optional) Set the page X position
    * @param {Number} y (optional) Set the page Y position
    */
    position : function(pos, zIndex, x, y){
	    var me = this;
	    
        if(!pos && me.isStyle(POSITION, STATIC)){           
            me.setStyle(POSITION, RELATIVE);           
        } else if(pos) {
            me.setStyle(POSITION, pos);
        }
        if(zIndex){
            me.setStyle(ZINDEX, zIndex);
        }
        if(x || y) me.setXY([x || false, y || false]);
    },

    <div id="method-Ext.Element-clearPositioning"></div>/**
    * Clear positioning back to the default when the document was loaded
    * @param {String} value (optional) The value to use for the left,right,top,bottom, defaults to '' (empty string). You could use 'auto'.
    * @return {Ext.Element} this
     */
    clearPositioning : function(value){
        value = value || '';
        this.setStyle({
            left : value,
            right : value,
            top : value,
            bottom : value,
            "z-index" : "",
            position : STATIC
        });
        return this;
    },

    <div id="method-Ext.Element-getPositioning"></div>/**
    * Gets an object with all CSS positioning properties. Useful along with setPostioning to get
    * snapshot before performing an update and then restoring the element.
    * @return {Object}
    */
    getPositioning : function(){
        var l = this.getStyle(LEFT);
        var t = this.getStyle(TOP);
        return {
            "position" : this.getStyle(POSITION),
            "left" : l,
            "right" : l ? "" : this.getStyle(RIGHT),
            "top" : t,
            "bottom" : t ? "" : this.getStyle(BOTTOM),
            "z-index" : this.getStyle(ZINDEX)
        };
    },
    
    <div id="method-Ext.Element-setPositioning"></div>/**
    * Set positioning with an object returned by getPositioning().
    * @param {Object} posCfg
    * @return {Ext.Element} this
     */
    setPositioning : function(pc){
	    var me = this,
	    	style = me.dom.style;
	    	
        me.setStyle(pc);
        
        if(pc.right == AUTO){
            style.right = "";
        }
        if(pc.bottom == AUTO){
            style.bottom = "";
        }
        
        return me;
    },    
	
    <div id="method-Ext.Element-translatePoints"></div>/**
     * Translates the passed page coordinates into left/top css values for this element
     * @param {Number/Array} x The page x or an array containing [x, y]
     * @param {Number} y (optional) The page y, required if x is not an array
     * @return {Object} An object with left and top properties. e.g. {left: (value), top: (value)}
     */
    translatePoints : function(x, y){        	     
	    y = isNaN(x[1]) ? y : x[1];
        x = isNaN(x[0]) ? x : x[0];
        var me = this,
        	relative = me.isStyle(POSITION, RELATIVE),
        	o = me.getXY(),
        	l = parseInt(me.getStyle(LEFT), 10),
        	t = parseInt(me.getStyle(TOP), 10);
        
        l = !isNaN(l) ? l : (relative ? 0 : me.dom.offsetLeft);
        t = !isNaN(t) ? t : (relative ? 0 : me.dom.offsetTop);        

        return {left: (x - o[0] + l), top: (y - o[1] + t)}; 
    },
    
    animTest : function(args, animate, i) {
        return !!animate && this.preanim ? this.preanim(args, i) : false;
    }
});
})();</pre>    
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