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/*
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Copyright (c) 2007, Yahoo! Inc. All rights reserved.
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Code licensed under the BSD License:
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http://developer.yahoo.net/yui/license.txt
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version: 2.4.1
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*/
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/**
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* The dom module provides helper methods for manipulating Dom elements.
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* @module dom
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*
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*/
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(function() {
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var Y = YAHOO.util, // internal shorthand
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getStyle, // for load time browser branching
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setStyle, // ditto
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id_counter = 0, // for use with generateId
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propertyCache = {}, // for faster hyphen converts
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reClassNameCache = {}, // cache regexes for className
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document = window.document; // cache for faster lookups
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// brower detection
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var isOpera = YAHOO.env.ua.opera,
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isSafari = YAHOO.env.ua.webkit,
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isGecko = YAHOO.env.ua.gecko,
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isIE = YAHOO.env.ua.ie;
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// regex cache
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var patterns = {
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HYPHEN: /(-[a-z])/i, // to normalize get/setStyle
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ROOT_TAG: /^body|html$/i // body for quirks mode, html for standards
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};
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var toCamel = function(property) {
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if ( !patterns.HYPHEN.test(property) ) {
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return property; // no hyphens
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}
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if (propertyCache[property]) { // already converted
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return propertyCache[property];
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}
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var converted = property;
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while( patterns.HYPHEN.exec(converted) ) {
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converted = converted.replace(RegExp.$1,
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RegExp.$1.substr(1).toUpperCase());
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}
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propertyCache[property] = converted;
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return converted;
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//return property.replace(/-([a-z])/gi, function(m0, m1) {return m1.toUpperCase()}) // cant use function as 2nd arg yet due to safari bug
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};
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var getClassRegEx = function(className) {
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var re = reClassNameCache[className];
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if (!re) {
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re = new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)');
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reClassNameCache[className] = re;
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}
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return re;
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};
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// branching at load instead of runtime
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if (document.defaultView && document.defaultView.getComputedStyle) { // W3C DOM method
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getStyle = function(el, property) {
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var value = null;
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if (property == 'float') { // fix reserved word
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property = 'cssFloat';
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}
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var computed = document.defaultView.getComputedStyle(el, '');
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if (computed) { // test computed before touching for safari
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value = computed[toCamel(property)];
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}
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return el.style[property] || value;
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};
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} else if (document.documentElement.currentStyle && isIE) { // IE method
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getStyle = function(el, property) {
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switch( toCamel(property) ) {
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case 'opacity' :// IE opacity uses filter
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var val = 100;
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try { // will error if no DXImageTransform
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val = el.filters['DXImageTransform.Microsoft.Alpha'].opacity;
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} catch(e) {
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try { // make sure its in the document
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val = el.filters('alpha').opacity;
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} catch(e) {
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YAHOO.log('getStyle: IE filter failed',
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'error', 'Dom');
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}
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}
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return val / 100;
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case 'float': // fix reserved word
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property = 'styleFloat'; // fall through
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default:
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// test currentStyle before touching
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var value = el.currentStyle ? el.currentStyle[property] : null;
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return ( el.style[property] || value );
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}
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};
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} else { // default to inline only
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getStyle = function(el, property) { return el.style[property]; };
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}
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if (isIE) {
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setStyle = function(el, property, val) {
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switch (property) {
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case 'opacity':
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if ( YAHOO.lang.isString(el.style.filter) ) { // in case not appended
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el.style.filter = 'alpha(opacity=' + val * 100 + ')';
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if (!el.currentStyle || !el.currentStyle.hasLayout) {
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el.style.zoom = 1; // when no layout or cant tell
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}
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}
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break;
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case 'float':
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property = 'styleFloat';
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default:
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el.style[property] = val;
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}
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};
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} else {
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setStyle = function(el, property, val) {
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if (property == 'float') {
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property = 'cssFloat';
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}
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el.style[property] = val;
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};
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}
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var testElement = function(node, method) {
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return node && node.nodeType == 1 && ( !method || method(node) );
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};
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/**
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* Provides helper methods for DOM elements.
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* @namespace YAHOO.util
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* @class Dom
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*/
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YAHOO.util.Dom = {
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/**
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* Returns an HTMLElement reference.
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* @method get
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* @param {String | HTMLElement |Array} el Accepts a string to use as an ID for getting a DOM reference, an actual DOM reference, or an Array of IDs and/or HTMLElements.
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* @return {HTMLElement | Array} A DOM reference to an HTML element or an array of HTMLElements.
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*/
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get: function(el) {
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if (el && (el.tagName || el.item)) { // HTMLElement, or HTMLCollection
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return el;
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}
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if (YAHOO.lang.isString(el) || !el) { // HTMLElement or null
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return document.getElementById(el);
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}
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if (el.length !== undefined) { // array-like
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var c = [];
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for (var i = 0, len = el.length; i < len; ++i) {
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c[c.length] = Y.Dom.get(el[i]);
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}
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return c;
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}
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return el; // some other object, just pass it back
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},
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/**
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* Normalizes currentStyle and ComputedStyle.
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* @method getStyle
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* @param {String | HTMLElement |Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements.
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* @param {String} property The style property whose value is returned.
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* @return {String | Array} The current value of the style property for the element(s).
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*/
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getStyle: function(el, property) {
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property = toCamel(property);
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var f = function(element) {
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return getStyle(element, property);
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};
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return Y.Dom.batch(el, f, Y.Dom, true);
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},
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/**
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* Wrapper for setting style properties of HTMLElements. Normalizes "opacity" across modern browsers.
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* @method setStyle
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements.
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* @param {String} property The style property to be set.
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* @param {String} val The value to apply to the given property.
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*/
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setStyle: function(el, property, val) {
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property = toCamel(property);
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var f = function(element) {
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setStyle(element, property, val);
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YAHOO.log('setStyle setting ' + property + ' to ' + val, 'info', 'Dom');
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};
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Y.Dom.batch(el, f, Y.Dom, true);
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},
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/**
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* Gets the current position of an 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).
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* @method getXY
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements
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* @return {Array} The XY position of the element(s)
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*/
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getXY: function(el) {
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var f = function(el) {
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// has to be part of document to have pageXY
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if ( (el.parentNode === null || el.offsetParent === null ||
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this.getStyle(el, 'display') == 'none') && el != el.ownerDocument.body) {
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YAHOO.log('getXY failed: element not available', 'error', 'Dom');
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return false;
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}
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YAHOO.log('getXY returning ' + getXY(el), 'info', 'Dom');
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return getXY(el);
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};
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return Y.Dom.batch(el, f, Y.Dom, true);
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},
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/**
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* Gets the current X position of an element based on page coordinates. The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
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* @method getX
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements
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* @return {Number | Array} The X position of the element(s)
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*/
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getX: function(el) {
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var f = function(el) {
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return Y.Dom.getXY(el)[0];
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};
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return Y.Dom.batch(el, f, Y.Dom, true);
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},
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/**
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* Gets the current Y position of an 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).
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* @method getY
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements
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* @return {Number | Array} The Y position of the element(s)
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*/
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getY: function(el) {
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var f = function(el) {
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return Y.Dom.getXY(el)[1];
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};
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return Y.Dom.batch(el, f, Y.Dom, true);
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},
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/**
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* Set the position of an html element in page coordinates, regardless of how the element is positioned.
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* The element(s) must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
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* @method setXY
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements
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* @param {Array} pos Contains X & Y values for new position (coordinates are page-based)
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* @param {Boolean} noRetry By default we try and set the position a second time if the first fails
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*/
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setXY: function(el, pos, noRetry) {
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var f = function(el) {
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var style_pos = this.getStyle(el, 'position');
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if (style_pos == 'static') { // default to relative
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this.setStyle(el, 'position', 'relative');
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style_pos = 'relative';
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}
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var pageXY = this.getXY(el);
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if (pageXY === false) { // has to be part of doc to have pageXY
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YAHOO.log('setXY failed: element not available', 'error', 'Dom');
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return false;
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}
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var delta = [ // assuming pixels; if not we will have to retry
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parseInt( this.getStyle(el, 'left'), 10 ),
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parseInt( this.getStyle(el, 'top'), 10 )
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];
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if ( isNaN(delta[0]) ) {// in case of 'auto'
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delta[0] = (style_pos == 'relative') ? 0 : el.offsetLeft;
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}
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if ( isNaN(delta[1]) ) { // in case of 'auto'
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delta[1] = (style_pos == 'relative') ? 0 : el.offsetTop;
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}
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if (pos[0] !== null) { el.style.left = pos[0] - pageXY[0] + delta[0] + 'px'; }
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if (pos[1] !== null) { el.style.top = pos[1] - pageXY[1] + delta[1] + 'px'; }
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if (!noRetry) {
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var newXY = this.getXY(el);
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// if retry is true, try one more time if we miss
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if ( (pos[0] !== null && newXY[0] != pos[0]) ||
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(pos[1] !== null && newXY[1] != pos[1]) ) {
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this.setXY(el, pos, true);
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}
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}
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YAHOO.log('setXY setting position to ' + pos, 'info', 'Dom');
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};
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Y.Dom.batch(el, f, Y.Dom, true);
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},
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311
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312
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/**
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313
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* Set the X position of an html element in page coordinates, regardless of how the element is positioned.
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314
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* The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
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315
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* @method setX
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316
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements.
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317
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* @param {Int} x The value to use as the X coordinate for the element(s).
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318
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*/
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319
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setX: function(el, x) {
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320
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Y.Dom.setXY(el, [x, null]);
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321
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},
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322
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323
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/**
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324
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* Set the Y position of an html element in page coordinates, regardless of how the element is positioned.
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325
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* The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false).
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326
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* @method setY
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327
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements.
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328
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* @param {Int} x To use as the Y coordinate for the element(s).
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329
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*/
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330
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setY: function(el, y) {
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331
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Y.Dom.setXY(el, [null, y]);
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332
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},
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333
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334
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/**
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335
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* Returns the region position of the given element.
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* The element must be part of the DOM tree to have a region (display:none or elements not appended return false).
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337
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* @method getRegion
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338
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* @param {String | HTMLElement | Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements.
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339
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* @return {Region | Array} A Region or array of Region instances containing "top, left, bottom, right" member data.
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340
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*/
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341
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getRegion: function(el) {
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342
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var f = function(el) {
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343
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if ( (el.parentNode === null || el.offsetParent === null ||
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344
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this.getStyle(el, 'display') == 'none') && el != document.body) {
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345
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YAHOO.log('getRegion failed: element not available', 'error', 'Dom');
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return false;
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347
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}
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348
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349
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var region = Y.Region.getRegion(el);
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350
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YAHOO.log('getRegion returning ' + region, 'info', 'Dom');
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351
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return region;
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352
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};
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353
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354
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return Y.Dom.batch(el, f, Y.Dom, true);
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355
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},
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356
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357
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/**
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358
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* Returns the width of the client (viewport).
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359
|
* @method getClientWidth
|
|
360
|
* @deprecated Now using getViewportWidth. This interface left intact for back compat.
|
|
361
|
* @return {Int} The width of the viewable area of the page.
|
|
362
|
*/
|
|
363
|
getClientWidth: function() {
|
|
364
|
return Y.Dom.getViewportWidth();
|
|
365
|
},
|
|
366
|
|
|
367
|
/**
|
|
368
|
* Returns the height of the client (viewport).
|
|
369
|
* @method getClientHeight
|
|
370
|
* @deprecated Now using getViewportHeight. This interface left intact for back compat.
|
|
371
|
* @return {Int} The height of the viewable area of the page.
|
|
372
|
*/
|
|
373
|
getClientHeight: function() {
|
|
374
|
return Y.Dom.getViewportHeight();
|
|
375
|
},
|
|
376
|
|
|
377
|
/**
|
|
378
|
* Returns a array of HTMLElements with the given class.
|
|
379
|
* For optimized performance, include a tag and/or root node when possible.
|
|
380
|
* @method getElementsByClassName
|
|
381
|
* @param {String} className The class name to match against
|
|
382
|
* @param {String} tag (optional) The tag name of the elements being collected
|
|
383
|
* @param {String | HTMLElement} root (optional) The HTMLElement or an ID to use as the starting point
|
|
384
|
* @param {Function} apply (optional) A function to apply to each element when found
|
|
385
|
* @return {Array} An array of elements that have the given class name
|
|
386
|
*/
|
|
387
|
getElementsByClassName: function(className, tag, root, apply) {
|
|
388
|
tag = tag || '*';
|
|
389
|
root = (root) ? Y.Dom.get(root) : null || document;
|
|
390
|
if (!root) {
|
|
391
|
return [];
|
|
392
|
}
|
|
393
|
|
|
394
|
var nodes = [],
|
|
395
|
elements = root.getElementsByTagName(tag),
|
|
396
|
re = getClassRegEx(className);
|
|
397
|
|
|
398
|
for (var i = 0, len = elements.length; i < len; ++i) {
|
|
399
|
if ( re.test(elements[i].className) ) {
|
|
400
|
nodes[nodes.length] = elements[i];
|
|
401
|
if (apply) {
|
|
402
|
apply.call(elements[i], elements[i]);
|
|
403
|
}
|
|
404
|
}
|
|
405
|
}
|
|
406
|
|
|
407
|
return nodes;
|
|
408
|
},
|
|
409
|
|
|
410
|
/**
|
|
411
|
* Determines whether an HTMLElement has the given className.
|
|
412
|
* @method hasClass
|
|
413
|
* @param {String | HTMLElement | Array} el The element or collection to test
|
|
414
|
* @param {String} className the class name to search for
|
|
415
|
* @return {Boolean | Array} A boolean value or array of boolean values
|
|
416
|
*/
|
|
417
|
hasClass: function(el, className) {
|
|
418
|
var re = getClassRegEx(className);
|
|
419
|
|
|
420
|
var f = function(el) {
|
|
421
|
YAHOO.log('hasClass returning ' + re.test(el.className), 'info', 'Dom');
|
|
422
|
return re.test(el.className);
|
|
423
|
};
|
|
424
|
|
|
425
|
return Y.Dom.batch(el, f, Y.Dom, true);
|
|
426
|
},
|
|
427
|
|
|
428
|
/**
|
|
429
|
* Adds a class name to a given element or collection of elements.
|
|
430
|
* @method addClass
|
|
431
|
* @param {String | HTMLElement | Array} el The element or collection to add the class to
|
|
432
|
* @param {String} className the class name to add to the class attribute
|
|
433
|
* @return {Boolean | Array} A pass/fail boolean or array of booleans
|
|
434
|
*/
|
|
435
|
addClass: function(el, className) {
|
|
436
|
var f = function(el) {
|
|
437
|
if (this.hasClass(el, className)) {
|
|
438
|
return false; // already present
|
|
439
|
}
|
|
440
|
|
|
441
|
YAHOO.log('addClass adding ' + className, 'info', 'Dom');
|
|
442
|
|
|
443
|
el.className = YAHOO.lang.trim([el.className, className].join(' '));
|
|
444
|
return true;
|
|
445
|
};
|
|
446
|
|
|
447
|
return Y.Dom.batch(el, f, Y.Dom, true);
|
|
448
|
},
|
|
449
|
|
|
450
|
/**
|
|
451
|
* Removes a class name from a given element or collection of elements.
|
|
452
|
* @method removeClass
|
|
453
|
* @param {String | HTMLElement | Array} el The element or collection to remove the class from
|
|
454
|
* @param {String} className the class name to remove from the class attribute
|
|
455
|
* @return {Boolean | Array} A pass/fail boolean or array of booleans
|
|
456
|
*/
|
|
457
|
removeClass: function(el, className) {
|
|
458
|
var re = getClassRegEx(className);
|
|
459
|
|
|
460
|
var f = function(el) {
|
|
461
|
if (!this.hasClass(el, className)) {
|
|
462
|
return false; // not present
|
|
463
|
}
|
|
464
|
|
|
465
|
YAHOO.log('removeClass removing ' + className, 'info', 'Dom');
|
|
466
|
|
|
467
|
var c = el.className;
|
|
468
|
el.className = c.replace(re, ' ');
|
|
469
|
if ( this.hasClass(el, className) ) { // in case of multiple adjacent
|
|
470
|
this.removeClass(el, className);
|
|
471
|
}
|
|
472
|
|
|
473
|
el.className = YAHOO.lang.trim(el.className); // remove any trailing spaces
|
|
474
|
return true;
|
|
475
|
};
|
|
476
|
|
|
477
|
return Y.Dom.batch(el, f, Y.Dom, true);
|
|
478
|
},
|
|
479
|
|
|
480
|
/**
|
|
481
|
* Replace a class with another class for a given element or collection of elements.
|
|
482
|
* If no oldClassName is present, the newClassName is simply added.
|
|
483
|
* @method replaceClass
|
|
484
|
* @param {String | HTMLElement | Array} el The element or collection to remove the class from
|
|
485
|
* @param {String} oldClassName the class name to be replaced
|
|
486
|
* @param {String} newClassName the class name that will be replacing the old class name
|
|
487
|
* @return {Boolean | Array} A pass/fail boolean or array of booleans
|
|
488
|
*/
|
|
489
|
replaceClass: function(el, oldClassName, newClassName) {
|
|
490
|
if (!newClassName || oldClassName === newClassName) { // avoid infinite loop
|
|
491
|
return false;
|
|
492
|
}
|
|
493
|
|
|
494
|
var re = getClassRegEx(oldClassName);
|
|
495
|
|
|
496
|
var f = function(el) {
|
|
497
|
YAHOO.log('replaceClass replacing ' + oldClassName + ' with ' + newClassName, 'info', 'Dom');
|
|
498
|
|
|
499
|
if ( !this.hasClass(el, oldClassName) ) {
|
|
500
|
this.addClass(el, newClassName); // just add it if nothing to replace
|
|
501
|
return true; // NOTE: return
|
|
502
|
}
|
|
503
|
|
|
504
|
el.className = el.className.replace(re, ' ' + newClassName + ' ');
|
|
505
|
|
|
506
|
if ( this.hasClass(el, oldClassName) ) { // in case of multiple adjacent
|
|
507
|
this.replaceClass(el, oldClassName, newClassName);
|
|
508
|
}
|
|
509
|
|
|
510
|
el.className = YAHOO.lang.trim(el.className); // remove any trailing spaces
|
|
511
|
return true;
|
|
512
|
};
|
|
513
|
|
|
514
|
return Y.Dom.batch(el, f, Y.Dom, true);
|
|
515
|
},
|
|
516
|
|
|
517
|
/**
|
|
518
|
* Returns an ID and applies it to the element "el", if provided.
|
|
519
|
* @method generateId
|
|
520
|
* @param {String | HTMLElement | Array} el (optional) An optional element array of elements to add an ID to (no ID is added if one is already present).
|
|
521
|
* @param {String} prefix (optional) an optional prefix to use (defaults to "yui-gen").
|
|
522
|
* @return {String | Array} The generated ID, or array of generated IDs (or original ID if already present on an element)
|
|
523
|
*/
|
|
524
|
generateId: function(el, prefix) {
|
|
525
|
prefix = prefix || 'yui-gen';
|
|
526
|
|
|
527
|
var f = function(el) {
|
|
528
|
if (el && el.id) { // do not override existing ID
|
|
529
|
YAHOO.log('generateId returning existing id ' + el.id, 'info', 'Dom');
|
|
530
|
return el.id;
|
|
531
|
}
|
|
532
|
|
|
533
|
var id = prefix + id_counter++;
|
|
534
|
YAHOO.log('generateId generating ' + id, 'info', 'Dom');
|
|
535
|
|
|
536
|
if (el) {
|
|
537
|
el.id = id;
|
|
538
|
}
|
|
539
|
|
|
540
|
return id;
|
|
541
|
};
|
|
542
|
|
|
543
|
// batch fails when no element, so just generate and return single ID
|
|
544
|
return Y.Dom.batch(el, f, Y.Dom, true) || f.apply(Y.Dom, arguments);
|
|
545
|
},
|
|
546
|
|
|
547
|
/**
|
|
548
|
* Determines whether an HTMLElement is an ancestor of another HTML element in the DOM hierarchy.
|
|
549
|
* @method isAncestor
|
|
550
|
* @param {String | HTMLElement} haystack The possible ancestor
|
|
551
|
* @param {String | HTMLElement} needle The possible descendent
|
|
552
|
* @return {Boolean} Whether or not the haystack is an ancestor of needle
|
|
553
|
*/
|
|
554
|
isAncestor: function(haystack, needle) {
|
|
555
|
haystack = Y.Dom.get(haystack);
|
|
556
|
needle = Y.Dom.get(needle);
|
|
557
|
|
|
558
|
if (!haystack || !needle) {
|
|
559
|
return false;
|
|
560
|
}
|
|
561
|
|
|
562
|
if (haystack.contains && needle.nodeType && !isSafari) { // safari contains is broken
|
|
563
|
YAHOO.log('isAncestor returning ' + haystack.contains(needle), 'info', 'Dom');
|
|
564
|
return haystack.contains(needle);
|
|
565
|
}
|
|
566
|
else if ( haystack.compareDocumentPosition && needle.nodeType ) {
|
|
567
|
YAHOO.log('isAncestor returning ' + !!(haystack.compareDocumentPosition(needle) & 16), 'info', 'Dom');
|
|
568
|
return !!(haystack.compareDocumentPosition(needle) & 16);
|
|
569
|
} else if (needle.nodeType) {
|
|
570
|
// fallback to crawling up (safari)
|
|
571
|
return !!this.getAncestorBy(needle, function(el) {
|
|
572
|
return el == haystack;
|
|
573
|
});
|
|
574
|
}
|
|
575
|
YAHOO.log('isAncestor failed; most likely needle is not an HTMLElement', 'error', 'Dom');
|
|
576
|
return false;
|
|
577
|
},
|
|
578
|
|
|
579
|
/**
|
|
580
|
* Determines whether an HTMLElement is present in the current document.
|
|
581
|
* @method inDocument
|
|
582
|
* @param {String | HTMLElement} el The element to search for
|
|
583
|
* @return {Boolean} Whether or not the element is present in the current document
|
|
584
|
*/
|
|
585
|
inDocument: function(el) {
|
|
586
|
return this.isAncestor(document.documentElement, el);
|
|
587
|
},
|
|
588
|
|
|
589
|
/**
|
|
590
|
* Returns a array of HTMLElements that pass the test applied by supplied boolean method.
|
|
591
|
* For optimized performance, include a tag and/or root node when possible.
|
|
592
|
* @method getElementsBy
|
|
593
|
* @param {Function} method - A boolean method for testing elements which receives the element as its only argument.
|
|
594
|
* @param {String} tag (optional) The tag name of the elements being collected
|
|
595
|
* @param {String | HTMLElement} root (optional) The HTMLElement or an ID to use as the starting point
|
|
596
|
* @param {Function} apply (optional) A function to apply to each element when found
|
|
597
|
* @return {Array} Array of HTMLElements
|
|
598
|
*/
|
|
599
|
getElementsBy: function(method, tag, root, apply) {
|
|
600
|
tag = tag || '*';
|
|
601
|
root = (root) ? Y.Dom.get(root) : null || document;
|
|
602
|
|
|
603
|
if (!root) {
|
|
604
|
return [];
|
|
605
|
}
|
|
606
|
|
|
607
|
var nodes = [],
|
|
608
|
elements = root.getElementsByTagName(tag);
|
|
609
|
|
|
610
|
for (var i = 0, len = elements.length; i < len; ++i) {
|
|
611
|
if ( method(elements[i]) ) {
|
|
612
|
nodes[nodes.length] = elements[i];
|
|
613
|
if (apply) {
|
|
614
|
apply(elements[i]);
|
|
615
|
}
|
|
616
|
}
|
|
617
|
}
|
|
618
|
|
|
619
|
YAHOO.log('getElementsBy returning ' + nodes, 'info', 'Dom');
|
|
620
|
|
|
621
|
return nodes;
|
|
622
|
},
|
|
623
|
|
|
624
|
/**
|
|
625
|
* Runs the supplied method against each item in the Collection/Array.
|
|
626
|
* The method is called with the element(s) as the first arg, and the optional param as the second ( method(el, o) ).
|
|
627
|
* @method batch
|
|
628
|
* @param {String | HTMLElement | Array} el (optional) An element or array of elements to apply the method to
|
|
629
|
* @param {Function} method The method to apply to the element(s)
|
|
630
|
* @param {Any} o (optional) An optional arg that is passed to the supplied method
|
|
631
|
* @param {Boolean} override (optional) Whether or not to override the scope of "method" with "o"
|
|
632
|
* @return {Any | Array} The return value(s) from the supplied method
|
|
633
|
*/
|
|
634
|
batch: function(el, method, o, override) {
|
|
635
|
el = (el && (el.tagName || el.item)) ? el : Y.Dom.get(el); // skip get() when possible
|
|
636
|
|
|
637
|
if (!el || !method) {
|
|
638
|
YAHOO.log('batch failed: invalid arguments', 'error', 'Dom');
|
|
639
|
return false;
|
|
640
|
}
|
|
641
|
var scope = (override) ? o : window;
|
|
642
|
|
|
643
|
if (el.tagName || el.length === undefined) { // element or not array-like
|
|
644
|
return method.call(scope, el, o);
|
|
645
|
}
|
|
646
|
|
|
647
|
var collection = [];
|
|
648
|
|
|
649
|
for (var i = 0, len = el.length; i < len; ++i) {
|
|
650
|
collection[collection.length] = method.call(scope, el[i], o);
|
|
651
|
}
|
|
652
|
|
|
653
|
return collection;
|
|
654
|
},
|
|
655
|
|
|
656
|
/**
|
|
657
|
* Returns the height of the document.
|
|
658
|
* @method getDocumentHeight
|
|
659
|
* @return {Int} The height of the actual document (which includes the body and its margin).
|
|
660
|
*/
|
|
661
|
getDocumentHeight: function() {
|
|
662
|
var scrollHeight = (document.compatMode != 'CSS1Compat') ? document.body.scrollHeight : document.documentElement.scrollHeight;
|
|
663
|
|
|
664
|
var h = Math.max(scrollHeight, Y.Dom.getViewportHeight());
|
|
665
|
YAHOO.log('getDocumentHeight returning ' + h, 'info', 'Dom');
|
|
666
|
return h;
|
|
667
|
},
|
|
668
|
|
|
669
|
/**
|
|
670
|
* Returns the width of the document.
|
|
671
|
* @method getDocumentWidth
|
|
672
|
* @return {Int} The width of the actual document (which includes the body and its margin).
|
|
673
|
*/
|
|
674
|
getDocumentWidth: function() {
|
|
675
|
var scrollWidth = (document.compatMode != 'CSS1Compat') ? document.body.scrollWidth : document.documentElement.scrollWidth;
|
|
676
|
var w = Math.max(scrollWidth, Y.Dom.getViewportWidth());
|
|
677
|
YAHOO.log('getDocumentWidth returning ' + w, 'info', 'Dom');
|
|
678
|
return w;
|
|
679
|
},
|
|
680
|
|
|
681
|
/**
|
|
682
|
* Returns the current height of the viewport.
|
|
683
|
* @method getViewportHeight
|
|
684
|
* @return {Int} The height of the viewable area of the page (excludes scrollbars).
|
|
685
|
*/
|
|
686
|
getViewportHeight: function() {
|
|
687
|
var height = self.innerHeight; // Safari, Opera
|
|
688
|
var mode = document.compatMode;
|
|
689
|
|
|
690
|
if ( (mode || isIE) && !isOpera ) { // IE, Gecko
|
|
691
|
height = (mode == 'CSS1Compat') ?
|
|
692
|
document.documentElement.clientHeight : // Standards
|
|
693
|
document.body.clientHeight; // Quirks
|
|
694
|
}
|
|
695
|
|
|
696
|
YAHOO.log('getViewportHeight returning ' + height, 'info', 'Dom');
|
|
697
|
return height;
|
|
698
|
},
|
|
699
|
|
|
700
|
/**
|
|
701
|
* Returns the current width of the viewport.
|
|
702
|
* @method getViewportWidth
|
|
703
|
* @return {Int} The width of the viewable area of the page (excludes scrollbars).
|
|
704
|
*/
|
|
705
|
|
|
706
|
getViewportWidth: function() {
|
|
707
|
var width = self.innerWidth; // Safari
|
|
708
|
var mode = document.compatMode;
|
|
709
|
|
|
710
|
if (mode || isIE) { // IE, Gecko, Opera
|
|
711
|
width = (mode == 'CSS1Compat') ?
|
|
712
|
document.documentElement.clientWidth : // Standards
|
|
713
|
document.body.clientWidth; // Quirks
|
|
714
|
}
|
|
715
|
YAHOO.log('getViewportWidth returning ' + width, 'info', 'Dom');
|
|
716
|
return width;
|
|
717
|
},
|
|
718
|
|
|
719
|
/**
|
|
720
|
* Returns the nearest ancestor that passes the test applied by supplied boolean method.
|
|
721
|
* For performance reasons, IDs are not accepted and argument validation omitted.
|
|
722
|
* @method getAncestorBy
|
|
723
|
* @param {HTMLElement} node The HTMLElement to use as the starting point
|
|
724
|
* @param {Function} method - A boolean method for testing elements which receives the element as its only argument.
|
|
725
|
* @return {Object} HTMLElement or null if not found
|
|
726
|
*/
|
|
727
|
getAncestorBy: function(node, method) {
|
|
728
|
while (node = node.parentNode) { // NOTE: assignment
|
|
729
|
if ( testElement(node, method) ) {
|
|
730
|
YAHOO.log('getAncestorBy returning ' + node, 'info', 'Dom');
|
|
731
|
return node;
|
|
732
|
}
|
|
733
|
}
|
|
734
|
|
|
735
|
YAHOO.log('getAncestorBy returning null (no ancestor passed test)', 'error', 'Dom');
|
|
736
|
return null;
|
|
737
|
},
|
|
738
|
|
|
739
|
/**
|
|
740
|
* Returns the nearest ancestor with the given className.
|
|
741
|
* @method getAncestorByClassName
|
|
742
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
743
|
* @param {String} className
|
|
744
|
* @return {Object} HTMLElement
|
|
745
|
*/
|
|
746
|
getAncestorByClassName: function(node, className) {
|
|
747
|
node = Y.Dom.get(node);
|
|
748
|
if (!node) {
|
|
749
|
YAHOO.log('getAncestorByClassName failed: invalid node argument', 'error', 'Dom');
|
|
750
|
return null;
|
|
751
|
}
|
|
752
|
var method = function(el) { return Y.Dom.hasClass(el, className); };
|
|
753
|
return Y.Dom.getAncestorBy(node, method);
|
|
754
|
},
|
|
755
|
|
|
756
|
/**
|
|
757
|
* Returns the nearest ancestor with the given tagName.
|
|
758
|
* @method getAncestorByTagName
|
|
759
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
760
|
* @param {String} tagName
|
|
761
|
* @return {Object} HTMLElement
|
|
762
|
*/
|
|
763
|
getAncestorByTagName: function(node, tagName) {
|
|
764
|
node = Y.Dom.get(node);
|
|
765
|
if (!node) {
|
|
766
|
YAHOO.log('getAncestorByTagName failed: invalid node argument', 'error', 'Dom');
|
|
767
|
return null;
|
|
768
|
}
|
|
769
|
var method = function(el) {
|
|
770
|
return el.tagName && el.tagName.toUpperCase() == tagName.toUpperCase();
|
|
771
|
};
|
|
772
|
|
|
773
|
return Y.Dom.getAncestorBy(node, method);
|
|
774
|
},
|
|
775
|
|
|
776
|
/**
|
|
777
|
* Returns the previous sibling that is an HTMLElement.
|
|
778
|
* For performance reasons, IDs are not accepted and argument validation omitted.
|
|
779
|
* Returns the nearest HTMLElement sibling if no method provided.
|
|
780
|
* @method getPreviousSiblingBy
|
|
781
|
* @param {HTMLElement} node The HTMLElement to use as the starting point
|
|
782
|
* @param {Function} method A boolean function used to test siblings
|
|
783
|
* that receives the sibling node being tested as its only argument
|
|
784
|
* @return {Object} HTMLElement or null if not found
|
|
785
|
*/
|
|
786
|
getPreviousSiblingBy: function(node, method) {
|
|
787
|
while (node) {
|
|
788
|
node = node.previousSibling;
|
|
789
|
if ( testElement(node, method) ) {
|
|
790
|
return node;
|
|
791
|
}
|
|
792
|
}
|
|
793
|
return null;
|
|
794
|
},
|
|
795
|
|
|
796
|
/**
|
|
797
|
* Returns the previous sibling that is an HTMLElement
|
|
798
|
* @method getPreviousSibling
|
|
799
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
800
|
* @return {Object} HTMLElement or null if not found
|
|
801
|
*/
|
|
802
|
getPreviousSibling: function(node) {
|
|
803
|
node = Y.Dom.get(node);
|
|
804
|
if (!node) {
|
|
805
|
YAHOO.log('getPreviousSibling failed: invalid node argument', 'error', 'Dom');
|
|
806
|
return null;
|
|
807
|
}
|
|
808
|
|
|
809
|
return Y.Dom.getPreviousSiblingBy(node);
|
|
810
|
},
|
|
811
|
|
|
812
|
/**
|
|
813
|
* Returns the next HTMLElement sibling that passes the boolean method.
|
|
814
|
* For performance reasons, IDs are not accepted and argument validation omitted.
|
|
815
|
* Returns the nearest HTMLElement sibling if no method provided.
|
|
816
|
* @method getNextSiblingBy
|
|
817
|
* @param {HTMLElement} node The HTMLElement to use as the starting point
|
|
818
|
* @param {Function} method A boolean function used to test siblings
|
|
819
|
* that receives the sibling node being tested as its only argument
|
|
820
|
* @return {Object} HTMLElement or null if not found
|
|
821
|
*/
|
|
822
|
getNextSiblingBy: function(node, method) {
|
|
823
|
while (node) {
|
|
824
|
node = node.nextSibling;
|
|
825
|
if ( testElement(node, method) ) {
|
|
826
|
return node;
|
|
827
|
}
|
|
828
|
}
|
|
829
|
return null;
|
|
830
|
},
|
|
831
|
|
|
832
|
/**
|
|
833
|
* Returns the next sibling that is an HTMLElement
|
|
834
|
* @method getNextSibling
|
|
835
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
836
|
* @return {Object} HTMLElement or null if not found
|
|
837
|
*/
|
|
838
|
getNextSibling: function(node) {
|
|
839
|
node = Y.Dom.get(node);
|
|
840
|
if (!node) {
|
|
841
|
YAHOO.log('getNextSibling failed: invalid node argument', 'error', 'Dom');
|
|
842
|
return null;
|
|
843
|
}
|
|
844
|
|
|
845
|
return Y.Dom.getNextSiblingBy(node);
|
|
846
|
},
|
|
847
|
|
|
848
|
/**
|
|
849
|
* Returns the first HTMLElement child that passes the test method.
|
|
850
|
* @method getFirstChildBy
|
|
851
|
* @param {HTMLElement} node The HTMLElement to use as the starting point
|
|
852
|
* @param {Function} method A boolean function used to test children
|
|
853
|
* that receives the node being tested as its only argument
|
|
854
|
* @return {Object} HTMLElement or null if not found
|
|
855
|
*/
|
|
856
|
getFirstChildBy: function(node, method) {
|
|
857
|
var child = ( testElement(node.firstChild, method) ) ? node.firstChild : null;
|
|
858
|
return child || Y.Dom.getNextSiblingBy(node.firstChild, method);
|
|
859
|
},
|
|
860
|
|
|
861
|
/**
|
|
862
|
* Returns the first HTMLElement child.
|
|
863
|
* @method getFirstChild
|
|
864
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
865
|
* @return {Object} HTMLElement or null if not found
|
|
866
|
*/
|
|
867
|
getFirstChild: function(node, method) {
|
|
868
|
node = Y.Dom.get(node);
|
|
869
|
if (!node) {
|
|
870
|
YAHOO.log('getFirstChild failed: invalid node argument', 'error', 'Dom');
|
|
871
|
return null;
|
|
872
|
}
|
|
873
|
return Y.Dom.getFirstChildBy(node);
|
|
874
|
},
|
|
875
|
|
|
876
|
/**
|
|
877
|
* Returns the last HTMLElement child that passes the test method.
|
|
878
|
* @method getLastChildBy
|
|
879
|
* @param {HTMLElement} node The HTMLElement to use as the starting point
|
|
880
|
* @param {Function} method A boolean function used to test children
|
|
881
|
* that receives the node being tested as its only argument
|
|
882
|
* @return {Object} HTMLElement or null if not found
|
|
883
|
*/
|
|
884
|
getLastChildBy: function(node, method) {
|
|
885
|
if (!node) {
|
|
886
|
YAHOO.log('getLastChild failed: invalid node argument', 'error', 'Dom');
|
|
887
|
return null;
|
|
888
|
}
|
|
889
|
var child = ( testElement(node.lastChild, method) ) ? node.lastChild : null;
|
|
890
|
return child || Y.Dom.getPreviousSiblingBy(node.lastChild, method);
|
|
891
|
},
|
|
892
|
|
|
893
|
/**
|
|
894
|
* Returns the last HTMLElement child.
|
|
895
|
* @method getLastChild
|
|
896
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
897
|
* @return {Object} HTMLElement or null if not found
|
|
898
|
*/
|
|
899
|
getLastChild: function(node) {
|
|
900
|
node = Y.Dom.get(node);
|
|
901
|
return Y.Dom.getLastChildBy(node);
|
|
902
|
},
|
|
903
|
|
|
904
|
/**
|
|
905
|
* Returns an array of HTMLElement childNodes that pass the test method.
|
|
906
|
* @method getChildrenBy
|
|
907
|
* @param {HTMLElement} node The HTMLElement to start from
|
|
908
|
* @param {Function} method A boolean function used to test children
|
|
909
|
* that receives the node being tested as its only argument
|
|
910
|
* @return {Array} A static array of HTMLElements
|
|
911
|
*/
|
|
912
|
getChildrenBy: function(node, method) {
|
|
913
|
var child = Y.Dom.getFirstChildBy(node, method);
|
|
914
|
var children = child ? [child] : [];
|
|
915
|
|
|
916
|
Y.Dom.getNextSiblingBy(child, function(node) {
|
|
917
|
if ( !method || method(node) ) {
|
|
918
|
children[children.length] = node;
|
|
919
|
}
|
|
920
|
return false; // fail test to collect all children
|
|
921
|
});
|
|
922
|
|
|
923
|
return children;
|
|
924
|
},
|
|
925
|
|
|
926
|
/**
|
|
927
|
* Returns an array of HTMLElement childNodes.
|
|
928
|
* @method getChildren
|
|
929
|
* @param {String | HTMLElement} node The HTMLElement or an ID to use as the starting point
|
|
930
|
* @return {Array} A static array of HTMLElements
|
|
931
|
*/
|
|
932
|
getChildren: function(node) {
|
|
933
|
node = Y.Dom.get(node);
|
|
934
|
if (!node) {
|
|
935
|
YAHOO.log('getChildren failed: invalid node argument', 'error', 'Dom');
|
|
936
|
}
|
|
937
|
|
|
938
|
return Y.Dom.getChildrenBy(node);
|
|
939
|
},
|
|
940
|
|
|
941
|
/**
|
|
942
|
* Returns the left scroll value of the document
|
|
943
|
* @method getDocumentScrollLeft
|
|
944
|
* @param {HTMLDocument} document (optional) The document to get the scroll value of
|
|
945
|
* @return {Int} The amount that the document is scrolled to the left
|
|
946
|
*/
|
|
947
|
getDocumentScrollLeft: function(doc) {
|
|
948
|
doc = doc || document;
|
|
949
|
return Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft);
|
|
950
|
},
|
|
951
|
|
|
952
|
/**
|
|
953
|
* Returns the top scroll value of the document
|
|
954
|
* @method getDocumentScrollTop
|
|
955
|
* @param {HTMLDocument} document (optional) The document to get the scroll value of
|
|
956
|
* @return {Int} The amount that the document is scrolled to the top
|
|
957
|
*/
|
|
958
|
getDocumentScrollTop: function(doc) {
|
|
959
|
doc = doc || document;
|
|
960
|
return Math.max(doc.documentElement.scrollTop, doc.body.scrollTop);
|
|
961
|
},
|
|
962
|
|
|
963
|
/**
|
|
964
|
* Inserts the new node as the previous sibling of the reference node
|
|
965
|
* @method insertBefore
|
|
966
|
* @param {String | HTMLElement} newNode The node to be inserted
|
|
967
|
* @param {String | HTMLElement} referenceNode The node to insert the new node before
|
|
968
|
* @return {HTMLElement} The node that was inserted (or null if insert fails)
|
|
969
|
*/
|
|
970
|
insertBefore: function(newNode, referenceNode) {
|
|
971
|
newNode = Y.Dom.get(newNode);
|
|
972
|
referenceNode = Y.Dom.get(referenceNode);
|
|
973
|
|
|
974
|
if (!newNode || !referenceNode || !referenceNode.parentNode) {
|
|
975
|
YAHOO.log('insertAfter failed: missing or invalid arg(s)', 'error', 'Dom');
|
|
976
|
return null;
|
|
977
|
}
|
|
978
|
|
|
979
|
return referenceNode.parentNode.insertBefore(newNode, referenceNode);
|
|
980
|
},
|
|
981
|
|
|
982
|
/**
|
|
983
|
* Inserts the new node as the next sibling of the reference node
|
|
984
|
* @method insertAfter
|
|
985
|
* @param {String | HTMLElement} newNode The node to be inserted
|
|
986
|
* @param {String | HTMLElement} referenceNode The node to insert the new node after
|
|
987
|
* @return {HTMLElement} The node that was inserted (or null if insert fails)
|
|
988
|
*/
|
|
989
|
insertAfter: function(newNode, referenceNode) {
|
|
990
|
newNode = Y.Dom.get(newNode);
|
|
991
|
referenceNode = Y.Dom.get(referenceNode);
|
|
992
|
|
|
993
|
if (!newNode || !referenceNode || !referenceNode.parentNode) {
|
|
994
|
YAHOO.log('insertAfter failed: missing or invalid arg(s)', 'error', 'Dom');
|
|
995
|
return null;
|
|
996
|
}
|
|
997
|
|
|
998
|
if (referenceNode.nextSibling) {
|
|
999
|
return referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
|
|
1000
|
} else {
|
|
1001
|
return referenceNode.parentNode.appendChild(newNode);
|
|
1002
|
}
|
|
1003
|
},
|
|
1004
|
|
|
1005
|
/**
|
|
1006
|
* Creates a Region based on the viewport relative to the document.
|
|
1007
|
* @method getClientRegion
|
|
1008
|
* @return {Region} A Region object representing the viewport which accounts for document scroll
|
|
1009
|
*/
|
|
1010
|
getClientRegion: function() {
|
|
1011
|
var t = Y.Dom.getDocumentScrollTop(),
|
|
1012
|
l = Y.Dom.getDocumentScrollLeft(),
|
|
1013
|
r = Y.Dom.getViewportWidth() + l,
|
|
1014
|
b = Y.Dom.getViewportHeight() + t;
|
|
1015
|
|
|
1016
|
return new Y.Region(t, r, b, l);
|
|
1017
|
}
|
|
1018
|
};
|
|
1019
|
|
|
1020
|
var getXY = function() {
|
|
1021
|
if (document.documentElement.getBoundingClientRect) { // IE
|
|
1022
|
return function(el) {
|
|
1023
|
var box = el.getBoundingClientRect();
|
|
1024
|
|
|
1025
|
var rootNode = el.ownerDocument;
|
|
1026
|
return [box.left + Y.Dom.getDocumentScrollLeft(rootNode), box.top +
|
|
1027
|
Y.Dom.getDocumentScrollTop(rootNode)];
|
|
1028
|
};
|
|
1029
|
} else {
|
|
1030
|
return function(el) { // manually calculate by crawling up offsetParents
|
|
1031
|
var pos = [el.offsetLeft, el.offsetTop];
|
|
1032
|
var parentNode = el.offsetParent;
|
|
1033
|
|
|
1034
|
// safari: subtract body offsets if el is abs (or any offsetParent), unless body is offsetParent
|
|
1035
|
var accountForBody = (isSafari &&
|
|
1036
|
Y.Dom.getStyle(el, 'position') == 'absolute' &&
|
|
1037
|
el.offsetParent == el.ownerDocument.body);
|
|
1038
|
|
|
1039
|
if (parentNode != el) {
|
|
1040
|
while (parentNode) {
|
|
1041
|
pos[0] += parentNode.offsetLeft;
|
|
1042
|
pos[1] += parentNode.offsetTop;
|
|
1043
|
if (!accountForBody && isSafari &&
|
|
1044
|
Y.Dom.getStyle(parentNode,'position') == 'absolute' ) {
|
|
1045
|
accountForBody = true;
|
|
1046
|
}
|
|
1047
|
parentNode = parentNode.offsetParent;
|
|
1048
|
}
|
|
1049
|
}
|
|
1050
|
|
|
1051
|
if (accountForBody) { //safari doubles in this case
|
|
1052
|
pos[0] -= el.ownerDocument.body.offsetLeft;
|
|
1053
|
pos[1] -= el.ownerDocument.body.offsetTop;
|
|
1054
|
}
|
|
1055
|
parentNode = el.parentNode;
|
|
1056
|
|
|
1057
|
// account for any scrolled ancestors
|
|
1058
|
while ( parentNode.tagName && !patterns.ROOT_TAG.test(parentNode.tagName) )
|
|
1059
|
{
|
|
1060
|
// work around opera inline/table scrollLeft/Top bug
|
|
1061
|
if (Y.Dom.getStyle(parentNode, 'display').search(/^inline|table-row.*$/i)) {
|
|
1062
|
pos[0] -= parentNode.scrollLeft;
|
|
1063
|
pos[1] -= parentNode.scrollTop;
|
|
1064
|
}
|
|
1065
|
|
|
1066
|
parentNode = parentNode.parentNode;
|
|
1067
|
}
|
|
1068
|
|
|
1069
|
return pos;
|
|
1070
|
};
|
|
1071
|
}
|
|
1072
|
}() // NOTE: Executing for loadtime branching
|
|
1073
|
})();
|
|
1074
|
/**
|
|
1075
|
* A region is a representation of an object on a grid. It is defined
|
|
1076
|
* by the top, right, bottom, left extents, so is rectangular by default. If
|
|
1077
|
* other shapes are required, this class could be extended to support it.
|
|
1078
|
* @namespace YAHOO.util
|
|
1079
|
* @class Region
|
|
1080
|
* @param {Int} t the top extent
|
|
1081
|
* @param {Int} r the right extent
|
|
1082
|
* @param {Int} b the bottom extent
|
|
1083
|
* @param {Int} l the left extent
|
|
1084
|
* @constructor
|
|
1085
|
*/
|
|
1086
|
YAHOO.util.Region = function(t, r, b, l) {
|
|
1087
|
|
|
1088
|
/**
|
|
1089
|
* The region's top extent
|
|
1090
|
* @property top
|
|
1091
|
* @type Int
|
|
1092
|
*/
|
|
1093
|
this.top = t;
|
|
1094
|
|
|
1095
|
/**
|
|
1096
|
* The region's top extent as index, for symmetry with set/getXY
|
|
1097
|
* @property 1
|
|
1098
|
* @type Int
|
|
1099
|
*/
|
|
1100
|
this[1] = t;
|
|
1101
|
|
|
1102
|
/**
|
|
1103
|
* The region's right extent
|
|
1104
|
* @property right
|
|
1105
|
* @type int
|
|
1106
|
*/
|
|
1107
|
this.right = r;
|
|
1108
|
|
|
1109
|
/**
|
|
1110
|
* The region's bottom extent
|
|
1111
|
* @property bottom
|
|
1112
|
* @type Int
|
|
1113
|
*/
|
|
1114
|
this.bottom = b;
|
|
1115
|
|
|
1116
|
/**
|
|
1117
|
* The region's left extent
|
|
1118
|
* @property left
|
|
1119
|
* @type Int
|
|
1120
|
*/
|
|
1121
|
this.left = l;
|
|
1122
|
|
|
1123
|
/**
|
|
1124
|
* The region's left extent as index, for symmetry with set/getXY
|
|
1125
|
* @property 0
|
|
1126
|
* @type Int
|
|
1127
|
*/
|
|
1128
|
this[0] = l;
|
|
1129
|
};
|
|
1130
|
|
|
1131
|
/**
|
|
1132
|
* Returns true if this region contains the region passed in
|
|
1133
|
* @method contains
|
|
1134
|
* @param {Region} region The region to evaluate
|
|
1135
|
* @return {Boolean} True if the region is contained with this region,
|
|
1136
|
* else false
|
|
1137
|
*/
|
|
1138
|
YAHOO.util.Region.prototype.contains = function(region) {
|
|
1139
|
return ( region.left >= this.left &&
|
|
1140
|
region.right <= this.right &&
|
|
1141
|
region.top >= this.top &&
|
|
1142
|
region.bottom <= this.bottom );
|
|
1143
|
|
|
1144
|
// this.logger.debug("does " + this + " contain " + region + " ... " + ret);
|
|
1145
|
};
|
|
1146
|
|
|
1147
|
/**
|
|
1148
|
* Returns the area of the region
|
|
1149
|
* @method getArea
|
|
1150
|
* @return {Int} the region's area
|
|
1151
|
*/
|
|
1152
|
YAHOO.util.Region.prototype.getArea = function() {
|
|
1153
|
return ( (this.bottom - this.top) * (this.right - this.left) );
|
|
1154
|
};
|
|
1155
|
|
|
1156
|
/**
|
|
1157
|
* Returns the region where the passed in region overlaps with this one
|
|
1158
|
* @method intersect
|
|
1159
|
* @param {Region} region The region that intersects
|
|
1160
|
* @return {Region} The overlap region, or null if there is no overlap
|
|
1161
|
*/
|
|
1162
|
YAHOO.util.Region.prototype.intersect = function(region) {
|
|
1163
|
var t = Math.max( this.top, region.top );
|
|
1164
|
var r = Math.min( this.right, region.right );
|
|
1165
|
var b = Math.min( this.bottom, region.bottom );
|
|
1166
|
var l = Math.max( this.left, region.left );
|
|
1167
|
|
|
1168
|
if (b >= t && r >= l) {
|
|
1169
|
return new YAHOO.util.Region(t, r, b, l);
|
|
1170
|
} else {
|
|
1171
|
return null;
|
|
1172
|
}
|
|
1173
|
};
|
|
1174
|
|
|
1175
|
/**
|
|
1176
|
* Returns the region representing the smallest region that can contain both
|
|
1177
|
* the passed in region and this region.
|
|
1178
|
* @method union
|
|
1179
|
* @param {Region} region The region that to create the union with
|
|
1180
|
* @return {Region} The union region
|
|
1181
|
*/
|
|
1182
|
YAHOO.util.Region.prototype.union = function(region) {
|
|
1183
|
var t = Math.min( this.top, region.top );
|
|
1184
|
var r = Math.max( this.right, region.right );
|
|
1185
|
var b = Math.max( this.bottom, region.bottom );
|
|
1186
|
var l = Math.min( this.left, region.left );
|
|
1187
|
|
|
1188
|
return new YAHOO.util.Region(t, r, b, l);
|
|
1189
|
};
|
|
1190
|
|
|
1191
|
/**
|
|
1192
|
* toString
|
|
1193
|
* @method toString
|
|
1194
|
* @return string the region properties
|
|
1195
|
*/
|
|
1196
|
YAHOO.util.Region.prototype.toString = function() {
|
|
1197
|
return ( "Region {" +
|
|
1198
|
"top: " + this.top +
|
|
1199
|
", right: " + this.right +
|
|
1200
|
", bottom: " + this.bottom +
|
|
1201
|
", left: " + this.left +
|
|
1202
|
"}" );
|
|
1203
|
};
|
|
1204
|
|
|
1205
|
/**
|
|
1206
|
* Returns a region that is occupied by the DOM element
|
|
1207
|
* @method getRegion
|
|
1208
|
* @param {HTMLElement} el The element
|
|
1209
|
* @return {Region} The region that the element occupies
|
|
1210
|
* @static
|
|
1211
|
*/
|
|
1212
|
YAHOO.util.Region.getRegion = function(el) {
|
|
1213
|
var p = YAHOO.util.Dom.getXY(el);
|
|
1214
|
|
|
1215
|
var t = p[1];
|
|
1216
|
var r = p[0] + el.offsetWidth;
|
|
1217
|
var b = p[1] + el.offsetHeight;
|
|
1218
|
var l = p[0];
|
|
1219
|
|
|
1220
|
return new YAHOO.util.Region(t, r, b, l);
|
|
1221
|
};
|
|
1222
|
|
|
1223
|
/////////////////////////////////////////////////////////////////////////////
|
|
1224
|
|
|
1225
|
|
|
1226
|
/**
|
|
1227
|
* A point is a region that is special in that it represents a single point on
|
|
1228
|
* the grid.
|
|
1229
|
* @namespace YAHOO.util
|
|
1230
|
* @class Point
|
|
1231
|
* @param {Int} x The X position of the point
|
|
1232
|
* @param {Int} y The Y position of the point
|
|
1233
|
* @constructor
|
|
1234
|
* @extends YAHOO.util.Region
|
|
1235
|
*/
|
|
1236
|
YAHOO.util.Point = function(x, y) {
|
|
1237
|
if (YAHOO.lang.isArray(x)) { // accept input from Dom.getXY, Event.getXY, etc.
|
|
1238
|
y = x[1]; // dont blow away x yet
|
|
1239
|
x = x[0];
|
|
1240
|
}
|
|
1241
|
|
|
1242
|
/**
|
|
1243
|
* The X position of the point, which is also the right, left and index zero (for Dom.getXY symmetry)
|
|
1244
|
* @property x
|
|
1245
|
* @type Int
|
|
1246
|
*/
|
|
1247
|
|
|
1248
|
this.x = this.right = this.left = this[0] = x;
|
|
1249
|
|
|
1250
|
/**
|
|
1251
|
* The Y position of the point, which is also the top, bottom and index one (for Dom.getXY symmetry)
|
|
1252
|
* @property y
|
|
1253
|
* @type Int
|
|
1254
|
*/
|
|
1255
|
this.y = this.top = this.bottom = this[1] = y;
|
|
1256
|
};
|
|
1257
|
|
|
1258
|
YAHOO.util.Point.prototype = new YAHOO.util.Region();
|
|
1259
|
|
|
1260
|
YAHOO.register("dom", YAHOO.util.Dom, {version: "2.4.1", build: "742"});
|