/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 3.0.0b1
build: 1163
*/
YUI.add('dom-base', function(Y) {
(function(Y) {
/**
* The DOM utility provides a cross-browser abtraction layer
* normalizing DOM tasks, and adds extra helper functionality
* for other common tasks.
* @module dom
* @submodule dom-base
*
*/
/**
* Provides DOM helper methods.
* @class DOM
*
*/
var NODE_TYPE = 'nodeType',
OWNER_DOCUMENT = 'ownerDocument',
DOCUMENT_ELEMENT = 'documentElement',
DEFAULT_VIEW = 'defaultView',
PARENT_WINDOW = 'parentWindow',
TAG_NAME = 'tagName',
PARENT_NODE = 'parentNode',
FIRST_CHILD = 'firstChild',
LAST_CHILD = 'lastChild',
PREVIOUS_SIBLING = 'previousSibling',
NEXT_SIBLING = 'nextSibling',
CONTAINS = 'contains',
COMPARE_DOCUMENT_POSITION = 'compareDocumentPosition',
re_tag = /<([a-z]+)/i;
Y.DOM = {
/**
* Returns the HTMLElement with the given ID (Wrapper for document.getElementById).
* @method byId
* @param {String} id the id attribute
* @param {Object} doc optional The document to search. Defaults to current document
* @return {HTMLElement | null} The HTMLElement with the id, or null if none found.
*/
byId: function(id, doc) {
doc = doc || Y.config.doc;
// TODO: IE Name
return doc.getElementById(id);
},
/**
* Returns the text content of the HTMLElement.
* @method getText
* @param {HTMLElement} element The html element.
* @return {String} The text content of the element (includes text of any descending elements).
*/
getText: (document.documentElement.textContent !== undefined) ?
function(element) {
var ret = '';
if (element) {
ret = element.textContent;
}
return ret || '';
} : function(element) {
var ret = '';
if (element) {
ret = element.innerText;
}
return ret || '';
},
/**
* Sets the text content of the HTMLElement.
* @method setText
* @param {HTMLElement} element The html element.
* @param {String} content The content to add.
*/
setText: (document.documentElement.textContent !== undefined) ?
function(element, content) {
if (element) {
element.textContent = content;
}
} : function(element, content) {
if (element) {
element.innerText = content;
}
},
// TODO: pull out sugar (rely on _childBy, byAxis, etc)?
/*
* Finds the firstChild of the given HTMLElement.
* @method firstChild
* @deprecated Use _childBy
* @param {HTMLElement} element The html element.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, the first found is returned.
* @return {HTMLElement | null} The first matching child html element.
*/
firstChild: function(element, fn) {
return Y.DOM._childBy(element, null, fn);
},
// @deprecated Use _childBy
firstChildByTag: function(element, tag, fn) {
return Y.DOM._childBy(element, tag, fn);
},
/*
* Finds the lastChild of the given HTMLElement.
* @method lastChild
* @deprecated Use _childBy
* @param {HTMLElement} element The html element.
* @param {String} tag The tag to search for.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, the first found is returned.
* @return {HTMLElement | null} The first matching child html element.
*/
lastChild: function(element, fn) {
return Y.DOM._childBy(element, null, fn, true);
},
// @deprecated Use _childBy
lastChildByTag: function(element, tag, fn) {
return Y.DOM._childBy(element, tag, fn, true);
},
/*
* Finds all HTMLElement childNodes matching the given tag.
* @method childrenByTag
* @deprecated Use Selector
* @param {HTMLElement} element The html element.
* @param {String} tag The tag to search for.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, all children with the given tag are collected.
* @return {Array} The collection of child elements.
* TODO: Webkit children.tags() returns grandchildren
*/
_childrenByTag: function() {
if (document[DOCUMENT_ELEMENT].children) {
return function(element, tag, fn, toArray) { // TODO: keep toArray option?
tag = (tag && tag !== '*') ? tag.toUpperCase() : null;
var elements = [],
wrapFn = fn;
if (element) {
if (tag && !Y.UA.webkit) { // children.tags() broken in safari
elements = element.children.tags(tag);
} else {
elements = element.children;
if (tag) {
wrapFn = function(el) {
return el[TAG_NAME].toUpperCase() === tag && (!fn || fn(el));
};
}
}
elements = Y.DOM.filterElementsBy(elements, wrapFn);
}
return elements;
};
} else {
return function(element, tag, fn) {
tag = (tag && tag !== '*') ? tag.toUpperCase() : null;
var elements = [],
wrapFn = fn;
if (element) {
elements = element.childNodes;
if (tag) { // wrap fn and add tag test TODO: allow tag in filterElementsBy?
wrapFn = function(el) {
return el[TAG_NAME].toUpperCase() === tag && (!fn || fn(el));
};
}
elements = Y.DOM.filterElementsBy(elements, wrapFn);
}
return elements;
};
}
}(),
/*
* Finds all HTMLElement childNodes.
* @method children
* @deprecated Use Selector
* @param {HTMLElement} element The html element.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, all children are collected.
* @return {Array} The collection of child elements.
*/
children: function(element, fn) {
return Y.DOM._childrenByTag(element, null, fn);
},
/*
* Finds the previous sibling of the element.
* @method previous
* @deprecated Use elementByAxis
* @param {HTMLElement} element The html element.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current DOM node being tested as its only argument.
* If no function is given, the first sibling is returned.
* @param {Boolean} all optional Whether all node types should be scanned, or just element nodes.
* @return {HTMLElement | null} The matching DOM node or null if none found.
*/
previous: function(element, fn, all) {
return Y.DOM.elementByAxis(element, PREVIOUS_SIBLING, fn, all);
},
/*
* Finds the next sibling of the element.
* @method next
* @deprecated Use elementByAxis
* @param {HTMLElement} element The html element.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current DOM node being tested as its only argument.
* If no function is given, the first sibling is returned.
* @param {Boolean} all optional Whether all node types should be scanned, or just element nodes.
* @return {HTMLElement | null} The matching DOM node or null if none found.
*/
next: function(element, fn, all) {
return Y.DOM.elementByAxis(element, NEXT_SIBLING, fn, all);
},
/*
* Finds the ancestor of the element.
* @method ancestor
* @deprecated Use elementByAxis
* @param {HTMLElement} element The html element.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current DOM node being tested as its only argument.
* If no function is given, the parentNode is returned.
* @param {Boolean} all optional Whether all node types should be scanned, or just element nodes.
* @return {HTMLElement | null} The matching DOM node or null if none found.
*/
// TODO: optional stopAt node?
ancestor: function(element, fn, all) {
return Y.DOM.elementByAxis(element, PARENT_NODE, fn, all);
},
/**
* Searches the element by the given axis for the first matching element.
* @method elementByAxis
* @param {HTMLElement} element The html element.
* @param {String} axis The axis to search (parentNode, nextSibling, previousSibling).
* @param {Function} fn optional An optional boolean test to apply.
* @param {Boolean} all optional Whether all node types should be returned, or just element nodes.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, the first element is returned.
* @return {HTMLElement | null} The matching element or null if none found.
*/
elementByAxis: function(element, axis, fn, all) {
while (element && (element = element[axis])) { // NOTE: assignment
if ( (all || element[TAG_NAME]) && (!fn || fn(element)) ) {
return element;
}
}
return null;
},
/*
* Finds all elements with the given tag.
* @method byTag
* @deprecated Use Selector
* @param {String} tag The tag being search for.
* @param {HTMLElement} root optional An optional root element to start from.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, all elements with the given tag are returned.
* @return {Array} The collection of matching elements.
*/
byTag: function(tag, root, fn) {
root = root || Y.config.doc;
var elements = root.getElementsByTagName(tag),
retNodes = [],
i, len;
for (i = 0, len = elements.length; i < len; ++i) {
if ( !fn || fn(elements[i]) ) {
retNodes[retNodes.length] = elements[i];
}
}
return retNodes;
},
/*
* Finds the first element with the given tag.
* @method firstByTag
* @deprecated Use Selector
* @param {String} tag The tag being search for.
* @param {HTMLElement} root optional An optional root element to start from.
* @param {Function} fn optional An optional boolean test to apply.
* The optional function is passed the current HTMLElement being tested as its only argument.
* If no function is given, the first match is returned.
* @return {HTMLElement} The matching element.
*/
firstByTag: function(tag, root, fn) {
root = root || Y.config.doc;
var elements = root.getElementsByTagName(tag),
ret = null,
i, len;
for (i = 0, len = elements.length; i < len; ++i) {
if ( !fn || fn(elements[i]) ) {
ret = elements[i];
break;
}
}
return ret;
},
/*
* Filters a collection of HTMLElements by the given attributes.
* @method filterElementsBy
* @param {Array} elements The collection of HTMLElements to filter.
* @param {Function} fn A boolean test to apply.
* The function is passed the current HTMLElement being tested as its only argument.
* If no function is given, all HTMLElements are kept.
* @return {Array} The filtered collection of HTMLElements.
*/
filterElementsBy: function(elements, fn, firstOnly) {
var ret = (firstOnly) ? null : [],
i, len;
for (i = 0, len = elements.length; i < len; ++i) {
if (elements[i][TAG_NAME] && (!fn || fn(elements[i]))) {
if (firstOnly) {
ret = elements[i];
break;
} else {
ret[ret.length] = elements[i];
}
}
}
return ret;
},
/**
* Determines whether or not one HTMLElement is or contains another HTMLElement.
* @method contains
* @param {HTMLElement} element The containing html element.
* @param {HTMLElement} needle The html element that may be contained.
* @return {Boolean} Whether or not the element is or contains the needle.
*/
contains: function(element, needle) {
var ret = false;
if ( !needle || !element || !needle[NODE_TYPE] || !element[NODE_TYPE]) {
ret = false;
} else if (element[CONTAINS]) {
if (Y.UA.opera || needle[NODE_TYPE] === 1) { // IE & SAF contains fail if needle not an ELEMENT_NODE
ret = element[CONTAINS](needle);
} else {
ret = Y.DOM._bruteContains(element, needle);
}
} else if (element[COMPARE_DOCUMENT_POSITION]) { // gecko
if (element === needle || !!(element[COMPARE_DOCUMENT_POSITION](needle) & 16)) {
ret = true;
}
}
return ret;
},
/**
* Determines whether or not the HTMLElement is part of the document.
* @method inDoc
* @param {HTMLElement} element The containing html element.
* @param {HTMLElement} doc optional The document to check.
* @return {Boolean} Whether or not the element is attached to the document.
*/
inDoc: function(element, doc) {
doc = doc || element[OWNER_DOCUMENT];
var id = element.id;
if (!id) { // TODO: remove when done?
id = element.id = Y.guid();
}
return !! (doc.getElementById(id));
},
/**
* Inserts the new node as the previous sibling of the reference node
* @method insertBefore
* @param {String | HTMLElement} newNode The node to be inserted
* @param {String | HTMLElement} referenceNode The node to insert the new node before
* @return {HTMLElement} The node that was inserted (or null if insert fails)
*/
insertBefore: function(newNode, referenceNode) {
var ret = null,
parent;
if (newNode && referenceNode && (parent = referenceNode.parentNode)) { // NOTE: assignment
if (typeof newNode === 'string') {
newNode = Y.DOM.create(newNode);
}
ret = parent.insertBefore(newNode, referenceNode);
} else {
}
return ret;
},
/**
* Inserts the new node as the next sibling of the reference node
* @method insertAfter
* @param {String | HTMLElement} newNode The node to be inserted
* @param {String | HTMLElement} referenceNode The node to insert the new node after
* @return {HTMLElement} The node that was inserted (or null if insert fails)
*/
insertAfter: function(newNode, referenceNode) {
if (!newNode || !referenceNode || !referenceNode[PARENT_NODE]) {
return null;
}
if (typeof newNode === 'string') {
newNode = Y.DOM.create(newNode);
}
if (referenceNode[NEXT_SIBLING]) {
return referenceNode[PARENT_NODE].insertBefore(newNode, referenceNode[NEXT_SIBLING]);
} else {
return referenceNode[PARENT_NODE].appendChild(newNode);
}
},
/**
* Creates a new dom node using the provided markup string.
* @method create
* @param {String} html The markup used to create the element
* @param {HTMLDocument} doc An optional document context
*/
create: function(html, doc) {
html = Y.Lang.trim(html); // match IE which trims whitespace from innerHTML
if (!doc && Y.DOM._cloneCache[html]) {
return Y.DOM._cloneCache[html].cloneNode(true); // NOTE: return
}
doc = doc || Y.config.doc;
var m = re_tag.exec(html),
create = Y.DOM._create,
custom = Y.DOM.creators,
ret = null,
tag, nodes;
if (m && custom[m[1]]) {
if (typeof custom[m[1]] === 'function') {
create = custom[m[1]];
} else {
tag = custom[m[1]];
}
}
nodes = create(html, doc, tag).childNodes;
if (nodes.length === 1) { // return single node, breaking parentNode ref from "fragment"
ret = nodes[0].parentNode.removeChild(nodes[0]);
} else { // return multiple nodes as a fragment
ret = doc.createDocumentFragment();
while (nodes.length) {
ret.appendChild(nodes[0]);
}
}
Y.DOM._cloneCache[html] = ret.cloneNode(true);
return ret;
},
CUSTOM_ATTRIBUTES: (!document.documentElement.hasAttribute) ? { // IE < 8
'for': 'htmlFor',
'class': 'className'
} : { // w3c
'htmlFor': 'for',
'className': 'class'
},
/**
* Provides a normalized attribute interface.
* @method setAttibute
* @param {String | HTMLElement} el The target element for the attribute.
* @param {String} attr The attribute to set.
* @param {String} val The value of the attribute.
*/
setAttribute: function(el, attr, val) {
if (el && el.setAttribute) {
attr = Y.DOM.CUSTOM_ATTRIBUTES[attr] || attr;
el.setAttribute(attr, val);
}
},
/**
* Provides a normalized attribute interface.
* @method getAttibute
* @param {String | HTMLElement} el The target element for the attribute.
* @param {String} attr The attribute to get.
* @return {String} The current value of the attribute.
*/
getAttribute: function(el, attr) {
var ret = '';
if (el && el.getAttribute) {
attr = Y.DOM.CUSTOM_ATTRIBUTES[attr] || attr;
ret = el.getAttribute(attr, 2);
if (ret === null) {
ret = ''; // per DOM spec
}
}
return ret;
},
// @deprecated
srcIndex: (document.documentElement.sourceIndex) ?
function(node) {
return (node && node.sourceIndex) ? node.sourceIndex : null;
} :
function(node) {
return (node && node[OWNER_DOCUMENT]) ?
[].indexOf.call(node[OWNER_DOCUMENT].
getElementsByTagName('*'), node) : null;
},
isWindow: function(obj) {
return obj.alert && obj.document;
},
_fragClones: {
div: document.createElement('div')
},
_create: function(html, doc, tag) {
tag = tag || 'div';
var frag = Y.DOM._fragClones[tag];
if (frag) {
frag = frag.cloneNode(false);
} else {
frag = Y.DOM._fragClones[tag] = doc.createElement(tag);
}
frag.innerHTML = html;
return frag;
},
_removeChildNodes: function(node) {
while (node.firstChild) {
node.removeChild(node.firstChild);
}
},
_cloneCache: {},
/**
* Inserts content in a node at the given location
* @method addHTML
* @param {HTMLElement} node The node to insert into
* @param {String} content The content to be inserted
* @param {String} where Where to insert the content; default is after lastChild
*/
addHTML: function(node, content, where) {
if (typeof content === 'string') {
content = Y.Lang.trim(content); // match IE which trims whitespace from innerHTML
}
var newNode = Y.DOM._cloneCache[content];
if (newNode) {
newNode = newNode.cloneNode(true);
} else {
if (content.nodeType) { // domNode
newNode = content;
} else { // create from string and cache
newNode = Y.DOM.create(content);
}
}
if (where) {
if (where.nodeType) { // insert regardless of relationship to node
// TODO: check if node.contains(where)?
where.parentNode.insertBefore(newNode, where);
} else {
switch (where) {
case 'replace':
while (node.firstChild) {
node.removeChild(node.firstChild);
}
node.appendChild(newNode);
break;
case 'before':
node.parentNode.insertBefore(newNode, node);
break;
case 'after':
if (node.nextSibling) { // IE errors if refNode is null
node.parentNode.insertBefore(newNode, node.nextSibling);
} else {
node.parentNode.appendChild(newNode);
}
break;
default:
node.appendChild(newNode);
}
}
} else {
node.appendChild(newNode);
}
return newNode;
},
VALUE_SETTERS: {},
VALUE_GETTERS: {},
getValue: function(node) {
var ret = '', // TODO: return null?
getter;
if (node && node[TAG_NAME]) {
getter = Y.DOM.VALUE_GETTERS[node[TAG_NAME].toLowerCase()];
if (getter) {
ret = getter(node);
} else {
ret = node.value;
}
}
return (typeof ret === 'string') ? ret : '';
},
setValue: function(node, val) {
var setter;
if (node && node[TAG_NAME]) {
setter = Y.DOM.VALUE_SETTERS[node[TAG_NAME].toLowerCase()];
if (setter) {
setter(node, val);
} else {
node.value = val;
}
}
},
_stripScripts: function(node) {
var scripts = node.getElementsByTagName('script'),
i, script;
for (i = 0, script; script = scripts[i++];) {
script.parentNode.removeChild(script);
}
},
_execScripts: function(scripts, startIndex) {
var newScript,
i, script;
startIndex = startIndex || 0;
for (i = startIndex, script; script = scripts[i++];) {
newScript = script.ownerDocument.createElement('script');
script.parentNode.replaceChild(newScript, script);
if (script.text) {
newScript.text = script.text;
} else if (script.src) {
newScript.src = script.src;
// "pause" while loading to ensure exec order
// FF reports typeof onload as "undefined", so try IE first
if (typeof newScript.onreadystatechange !== 'undefined') {
newScript.onreadystatechange = function() {
if (/loaded|complete/.test(script.readyState)) {
event.srcElement.onreadystatechange = null;
// timer to help ensure exec order
setTimeout(function() {
Y.DOM._execScripts(scripts, i++);
}, 0);
}
};
} else {
newScript.onload = function(e) {
e.target.onload = null;
Y.DOM._execScripts(scripts, i++);
};
}
return; // NOTE: early return to chain async loading
}
}
},
/**
* Brute force version of contains.
* Used for browsers without contains support for non-HTMLElement Nodes (textNodes, etc).
* @method _bruteContains
* @private
* @param {HTMLElement} element The containing html element.
* @param {HTMLElement} needle The html element that may be contained.
* @return {Boolean} Whether or not the element is or contains the needle.
*/
_bruteContains: function(element, needle) {
while (needle) {
if (element === needle) {
return true;
}
needle = needle.parentNode;
}
return false;
},
// TODO: move to Lang?
/**
* Memoizes dynamic regular expressions to boost runtime performance.
* @method _getRegExp
* @private
* @param {String} str The string to convert to a regular expression.
* @param {String} flags optional An optinal string of flags.
* @return {RegExp} An instance of RegExp
*/
_getRegExp: function(str, flags) {
flags = flags || '';
Y.DOM._regexCache = Y.DOM._regexCache || {};
if (!Y.DOM._regexCache[str + flags]) {
Y.DOM._regexCache[str + flags] = new RegExp(str, flags);
}
return Y.DOM._regexCache[str + flags];
},
// TODO: make getDoc/Win true privates?
/**
* returns the appropriate document.
* @method _getDoc
* @private
* @param {HTMLElement} element optional Target element.
* @return {Object} The document for the given element or the default document.
*/
_getDoc: function(element) {
element = element || {};
return (element[NODE_TYPE] === 9) ? element : // element === document
element[OWNER_DOCUMENT] || // element === DOM node
element.document || // element === window
Y.config.doc; // default
},
/**
* returns the appropriate window.
* @method _getWin
* @private
* @param {HTMLElement} element optional Target element.
* @return {Object} The window for the given element or the default window.
*/
_getWin: function(element) {
var doc = Y.DOM._getDoc(element);
return doc[DEFAULT_VIEW] || doc[PARENT_WINDOW] || Y.config.win;
},
// @deprecated, use Selector
_childBy: function(element, tag, fn, rev) {
var ret = null,
root, axis;
if (element) {
if (rev) {
root = element[LAST_CHILD];
axis = PREVIOUS_SIBLING;
} else {
root = element[FIRST_CHILD];
axis = NEXT_SIBLING;
}
if (Y.DOM._testElement(root, tag, fn)) { // is the matching element
ret = root;
} else { // need to scan nextSibling axis of firstChild to find matching element
ret = Y.DOM.elementByAxis(root, axis, fn);
}
}
return ret;
},
_batch: function(nodes, fn, arg1, arg2, arg3, etc) {
fn = (typeof name === 'string') ? Y.DOM[fn] : fn;
var result,
ret = [];
if (fn && nodes) {
Y.each(nodes, function(node) {
if ((result = fn.call(Y.DOM, node, arg1, arg2, arg3, etc)) !== undefined) {
ret[ret.length] = result;
}
});
}
return ret.length ? ret : nodes;
},
_testElement: function(element, tag, fn) {
tag = (tag && tag !== '*') ? tag.toUpperCase() : null;
return (element && element[TAG_NAME] &&
(!tag || element[TAG_NAME].toUpperCase() === tag) &&
(!fn || fn(element)));
},
creators: {},
_IESimpleCreate: function(html, doc) {
doc = doc || Y.config.doc;
return doc.createElement(html);
}
};
(function(Y) {
var creators = Y.DOM.creators,
create = Y.DOM.create,
re_tbody = /(?:\/(?:thead|tfoot|tbody|caption|col|colgroup)>)+\s*<tbody/,
TABLE_OPEN = '<table>',
TABLE_CLOSE = '</table>';
if (Y.UA.gecko || Y.UA.ie) { // require custom creation code for certain element types
Y.mix(creators, {
option: function(html, doc) {
return create('<select>' + html + '</select>', doc);
},
tr: function(html, doc) {
return create('<tbody>' + html + '</tbody>', doc);
},
td: function(html, doc) {
return create('<tr>' + html + '</tr>', doc);
},
tbody: function(html, doc) {
return create(TABLE_OPEN + html + TABLE_CLOSE, doc);
},
legend: 'fieldset'
});
creators.col = creators.tbody; // IE wraps in colgroup
}
if (Y.UA.ie) {
Y.mix(creators, {
// TODO: thead/tfoot with nested tbody
// IE adds TBODY when creating TABLE elements (which may share this impl)
tbody: function(html, doc) {
var frag = create(TABLE_OPEN + html + TABLE_CLOSE, doc),
tb = frag.children.tags('tbody')[0];
if (frag.children.length > 1 && tb && !re_tbody.test(html)) {
tb[PARENT_NODE].removeChild(tb); // strip extraneous tbody
}
return frag;
},
script: function(html, doc) {
var frag = doc.createElement('div');
frag.innerHTML = '-' + html;
frag.removeChild(frag[FIRST_CHILD]);
return frag;
}
}, true);
Y.mix(Y.DOM.VALUE_GETTERS, {
button: function(node) {
return (node.attributes && node.attributes.value) ? node.attributes.value.value : '';
}
});
Y.mix(Y.DOM.VALUE_SETTERS, {
// IE: node.value changes the button text, which should be handled via innerHTML
button: function(node, val) {
var attr = node.attributes.value;
if (!attr) {
attr = node[OWNER_DOCUMENT].createAttribute('value');
node.setAttributeNode(attr);
}
attr.value = val;
}
});
}
if (Y.UA.gecko || Y.UA.ie) {
Y.mix(creators, {
th: creators.td,
thead: creators.tbody,
tfoot: creators.tbody,
caption: creators.tbody,
colgroup: creators.tbody,
col: creators.tbody,
optgroup: creators.option
});
}
Y.mix(Y.DOM.VALUE_GETTERS, {
option: function(node) {
var attrs = node.attributes;
return (attrs.value && attrs.value.specified) ? node.value : node.text;
},
select: function(node) {
var val = node.value,
options = node.options;
if (options && val === '') {
if (node.multiple) {
} else {
val = Y.DOM.getValue(options[node.selectedIndex], 'value');
}
}
return val;
}
});
})(Y);
})(Y);
Y.mix(Y.DOM, {
/**
* Determines whether a DOM element has the given className.
* @method hasClass
* @param {HTMLElement} element The DOM element.
* @param {String} className the class name to search for
* @return {Boolean} Whether or not the element has the given class.
*/
hasClass: function(node, className) {
var re = Y.DOM._getRegExp('(?:^|\\s+)' + className + '(?:\\s+|$)');
return re.test(node.className);
},
/**
* Adds a class name to a given DOM element.
* @method addClass
* @param {HTMLElement} element The DOM element.
* @param {String} className the class name to add to the class attribute
*/
addClass: function(node, className) {
if (!Y.DOM.hasClass(node, className)) { // skip if already present
node.className = Y.Lang.trim([node.className, className].join(' '));
}
},
/**
* Removes a class name from a given element.
* @method removeClass
* @param {HTMLElement} element The DOM element.
* @param {String} className the class name to remove from the class attribute
*/
removeClass: function(node, className) {
if (className && Y.DOM.hasClass(node, className)) {
node.className = Y.Lang.trim(node.className.replace(Y.DOM._getRegExp('(?:^|\\s+)' +
className + '(?:\\s+|$)'), ' '));
if ( Y.DOM.hasClass(node, className) ) { // in case of multiple adjacent
Y.DOM.removeClass(node, className);
}
}
},
/**
* Replace a class with another class for a given element.
* If no oldClassName is present, the newClassName is simply added.
* @method replaceClass
* @param {HTMLElement} element The DOM element.
* @param {String} oldClassName the class name to be replaced
* @param {String} newClassName the class name that will be replacing the old class name
*/
replaceClass: function(node, oldC, newC) {
Y.DOM.addClass(node, newC);
Y.DOM.removeClass(node, oldC);
},
/**
* If the className exists on the node it is removed, if it doesn't exist it is added.
* @method toggleClass
* @param {HTMLElement} element The DOM element.
* @param {String} className the class name to be toggled
*/
toggleClass: function(node, className) {
if (Y.DOM.hasClass(node, className)) {
Y.DOM.removeClass(node, className);
} else {
Y.DOM.addClass(node, className);
}
}
});
}, '3.0.0b1' ,{requires:['event'], skinnable:false});