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518 lines
18 KiB
JavaScript
518 lines
18 KiB
JavaScript
/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojo.NodeList-traverse"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dojo.NodeList-traverse"] = true;
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dojo.provide("dojo.NodeList-traverse");
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/*=====
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dojo["NodeList-traverse"] = {
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// summary: Adds a chainable methods to dojo.query() / Nodelist instances for traversing the DOM
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};
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=====*/
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dojo.extend(dojo.NodeList, {
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_buildArrayFromCallback: function(/*Function*/callback){
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// summary:
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// builds a new array of possibly differing size based on the input list.
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// Since the returned array is likely of different size than the input array,
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// the array's map function cannot be used.
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var ary = [];
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for(var i = 0; i < this.length; i++){
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var items = callback.call(this[i], this[i], ary);
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if(items){
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ary = ary.concat(items);
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}
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}
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return ary;
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},
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_filterQueryResult: function(nodeList, query){
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// summmary:
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// Replacement for dojo._filterQueryResult that does a full
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// query. Slower, but allows for more types of queries.
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var filter = dojo.filter(nodeList, function(node){
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return dojo.query(query, node.parentNode).indexOf(node) != -1;
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});
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var result = this._wrap(filter);
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return result;
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},
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_getUniqueAsNodeList: function(nodes){
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// summary:
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// given a list of nodes, make sure only unique
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// elements are returned as our NodeList object.
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// Does not call _stash().
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var ary = [];
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//Using for loop for better speed.
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for(var i = 0, node; node = nodes[i]; i++){
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//Should be a faster way to do this. dojo.query has a private
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//_zip function that may be inspirational, but there are pathways
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//in query that force nozip?
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if(node.nodeType == 1 && dojo.indexOf(ary, node) == -1){
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ary.push(node);
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}
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}
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return this._wrap(ary, null, this._NodeListCtor); //dojo.NodeList
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},
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_getUniqueNodeListWithParent: function(nodes, query){
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// summary:
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// gets unique element nodes, filters them further
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// with an optional query and then calls _stash to track parent NodeList.
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var ary = this._getUniqueAsNodeList(nodes);
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ary = (query ? this._filterQueryResult(ary, query) : ary);
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return ary._stash(this); //dojo.NodeList
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},
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_getRelatedUniqueNodes: function(/*String?*/query, /*Function*/callback){
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// summary:
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// cycles over all the nodes and calls a callback
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// to collect nodes for a possible inclusion in a result.
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// The callback will get two args: callback(node, ary),
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// where ary is the array being used to collect the nodes.
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return this._getUniqueNodeListWithParent(this._buildArrayFromCallback(callback), query); //dojo.NodeList
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},
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children: function(/*String?*/query){
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// summary:
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// Returns all immediate child elements for nodes in this dojo.NodeList.
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// Optionally takes a query to filter the child elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, all immediate child elements for the nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | Some Text
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// | <div class="blue">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".container").children();
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// returns the four divs that are children of the container div.
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// Running this code:
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// | dojo.query(".container").children(".red");
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// returns the two divs that have the class "red".
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return this._getRelatedUniqueNodes(query, function(node, ary){
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return dojo._toArray(node.childNodes);
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}); //dojo.NodeList
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},
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closest: function(/*String*/query){
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// summary:
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// Returns closest parent that matches query, including current node in this
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// dojo.NodeList if it matches the query.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, the closest parent that matches the query, including the current
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// node in this dojo.NodeList if it matches the query.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | Some Text
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// | <div class="blue">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".red").closest(".container");
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// returns the div with class "container".
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var self = this;
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return this._getRelatedUniqueNodes(query, function(node, ary){
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do{
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if(self._filterQueryResult([node], query).length){
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return node;
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}
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}while((node = node.parentNode) && node.nodeType == 1);
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return null; //To make rhino strict checking happy.
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}); //dojo.NodeList
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},
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parent: function(/*String?*/query){
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// summary:
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// Returns immediate parent elements for nodes in this dojo.NodeList.
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// Optionally takes a query to filter the parent elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, immediate parent elements for nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | <div class="blue first"><span class="text">Blue One</span></div>
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// | <div class="red">Red Two</div>
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// | <div class="blue"><span class="text">Blue Two</span></div>
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// | </div>
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// Running this code:
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// | dojo.query(".text").parent();
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// returns the two divs with class "blue".
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// Running this code:
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// | dojo.query(".text").parent(".first");
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// returns the one div with class "blue" and "first".
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return this._getRelatedUniqueNodes(query, function(node, ary){
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return node.parentNode;
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}); //dojo.NodeList
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},
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parents: function(/*String?*/query){
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// summary:
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// Returns all parent elements for nodes in this dojo.NodeList.
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// Optionally takes a query to filter the child elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, all parent elements for nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | <div class="blue first"><span class="text">Blue One</span></div>
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// | <div class="red">Red Two</div>
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// | <div class="blue"><span class="text">Blue Two</span></div>
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// | </div>
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// Running this code:
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// | dojo.query(".text").parents();
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// returns the two divs with class "blue", the div with class "container",
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// | the body element and the html element.
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// Running this code:
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// | dojo.query(".text").parents(".container");
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// returns the one div with class "container".
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return this._getRelatedUniqueNodes(query, function(node, ary){
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var pary = []
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while(node.parentNode){
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node = node.parentNode;
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pary.push(node);
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}
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return pary;
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}); //dojo.NodeList
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},
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siblings: function(/*String?*/query){
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// summary:
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// Returns all sibling elements for nodes in this dojo.NodeList.
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// Optionally takes a query to filter the sibling elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, all sibling elements for nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | Some Text
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// | <div class="blue first">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".first").siblings();
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// returns the two divs with class "red" and the other div
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// | with class "blue" that does not have "first".
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// Running this code:
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// | dojo.query(".first").siblings(".red");
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// returns the two div with class "red".
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return this._getRelatedUniqueNodes(query, function(node, ary){
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var pary = []
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var nodes = (node.parentNode && node.parentNode.childNodes);
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for(var i = 0; i < nodes.length; i++){
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if(nodes[i] != node){
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pary.push(nodes[i]);
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}
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}
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return pary;
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}); //dojo.NodeList
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},
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next: function(/*String?*/query){
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// summary:
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// Returns the next element for nodes in this dojo.NodeList.
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// Optionally takes a query to filter the next elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, the next element for nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | Some Text
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// | <div class="blue first">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue last">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".first").next();
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// returns the div with class "red" and has innerHTML of "Red Two".
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// Running this code:
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// | dojo.query(".last").next(".red");
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// does not return any elements.
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return this._getRelatedUniqueNodes(query, function(node, ary){
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var next = node.nextSibling;
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while(next && next.nodeType != 1){
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next = next.nextSibling;
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}
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return next;
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}); //dojo.NodeList
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},
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nextAll: function(/*String?*/query){
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// summary:
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// Returns all sibling elements that come after the nodes in this dojo.NodeList.
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// Optionally takes a query to filter the sibling elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, all sibling elements that come after the nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | Some Text
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// | <div class="blue first">Blue One</div>
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// | <div class="red next">Red Two</div>
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// | <div class="blue next">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".first").nextAll();
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// returns the two divs with class of "next".
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// Running this code:
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// | dojo.query(".first").nextAll(".red");
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// returns the one div with class "red" and innerHTML "Red Two".
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return this._getRelatedUniqueNodes(query, function(node, ary){
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var pary = []
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var next = node;
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while((next = next.nextSibling)){
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if(next.nodeType == 1){
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pary.push(next);
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}
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}
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return pary;
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}); //dojo.NodeList
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},
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prev: function(/*String?*/query){
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// summary:
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// Returns the previous element for nodes in this dojo.NodeList.
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// Optionally takes a query to filter the previous elements.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, the previous element for nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | Some Text
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// | <div class="blue first">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".first").prev();
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// returns the div with class "red" and has innerHTML of "Red One".
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// Running this code:
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// | dojo.query(".first").prev(".blue");
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// does not return any elements.
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return this._getRelatedUniqueNodes(query, function(node, ary){
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var prev = node.previousSibling;
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while(prev && prev.nodeType != 1){
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prev = prev.previousSibling;
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}
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return prev;
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}); //dojo.NodeList
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},
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prevAll: function(/*String?*/query){
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// summary:
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// Returns all sibling elements that come before the nodes in this dojo.NodeList.
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// Optionally takes a query to filter the sibling elements.
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// description:
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// The returned nodes will be in reverse DOM order -- the first node in the list will
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// be the node closest to the original node/NodeList.
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// query:
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// a CSS selector.
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// returns:
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// dojo.NodeList, all sibling elements that come before the nodes in this dojo.NodeList.
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red prev">Red One</div>
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// | Some Text
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// | <div class="blue prev">Blue One</div>
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// | <div class="red second">Red Two</div>
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// | <div class="blue">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".second").prevAll();
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// returns the two divs with class of "prev".
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// Running this code:
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// | dojo.query(".first").prevAll(".red");
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// returns the one div with class "red prev" and innerHTML "Red One".
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return this._getRelatedUniqueNodes(query, function(node, ary){
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var pary = []
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var prev = node;
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while((prev = prev.previousSibling)){
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if(prev.nodeType == 1){
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pary.push(prev);
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}
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}
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return pary;
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}); //dojo.NodeList
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},
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andSelf: function(){
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// summary:
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// Adds the nodes from the previous dojo.NodeList to the current dojo.NodeList.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// returns:
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// dojo.NodeList
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red prev">Red One</div>
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// | Some Text
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// | <div class="blue prev">Blue One</div>
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// | <div class="red second">Red Two</div>
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// | <div class="blue">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".second").prevAll().andSelf();
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// returns the two divs with class of "prev", as well as the div with class "second".
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return this.concat(this._parent);
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},
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//Alternate methods for the :first/:last/:even/:odd pseudos.
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first: function(){
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// summary:
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// Returns the first node in this dojo.NodeList as a dojo.NodeList.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// returns:
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// dojo.NodeList, with the first node in this dojo.NodeList
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | <div class="blue first">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue last">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".blue").first();
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// returns the div with class "blue" and "first".
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return this._wrap(((this[0] && [this[0]]) || []), this); //dojo.NodeList
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},
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last: function(){
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// summary:
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// Returns the last node in this dojo.NodeList as a dojo.NodeList.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// returns:
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// dojo.NodeList, with the last node in this dojo.NodeList
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="red">Red One</div>
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// | <div class="blue first">Blue One</div>
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// | <div class="red">Red Two</div>
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// | <div class="blue last">Blue Two</div>
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// | </div>
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// Running this code:
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// | dojo.query(".blue").last();
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// returns the last div with class "blue",
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return this._wrap((this.length ? [this[this.length - 1]] : []), this); //dojo.NodeList
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},
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even: function(){
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// summary:
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// Returns the even nodes in this dojo.NodeList as a dojo.NodeList.
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// description:
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// .end() can be used on the returned dojo.NodeList to get back to the
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// original dojo.NodeList.
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// returns:
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// dojo.NodeList, with the even nodes in this dojo.NodeList
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// example:
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// assume a DOM created by this markup:
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// | <div class="container">
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// | <div class="interior red">Red One</div>
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// | <div class="interior blue">Blue One</div>
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|
// | <div class="interior red">Red Two</div>
|
|
// | <div class="interior blue">Blue Two</div>
|
|
// | </div>
|
|
// Running this code:
|
|
// | dojo.query(".interior").even();
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|
// returns the two divs with class "blue"
|
|
return this.filter(function(item, i){
|
|
return i % 2 != 0;
|
|
}); //dojo.NodeList
|
|
},
|
|
|
|
odd: function(){
|
|
// summary:
|
|
// Returns the odd nodes in this dojo.NodeList as a dojo.NodeList.
|
|
// description:
|
|
// .end() can be used on the returned dojo.NodeList to get back to the
|
|
// original dojo.NodeList.
|
|
// returns:
|
|
// dojo.NodeList, with the odd nodes in this dojo.NodeList
|
|
// example:
|
|
// assume a DOM created by this markup:
|
|
// | <div class="container">
|
|
// | <div class="interior red">Red One</div>
|
|
// | <div class="interior blue">Blue One</div>
|
|
// | <div class="interior red">Red Two</div>
|
|
// | <div class="interior blue">Blue Two</div>
|
|
// | </div>
|
|
// Running this code:
|
|
// | dojo.query(".interior").odd();
|
|
// returns the two divs with class "red"
|
|
return this.filter(function(item, i){
|
|
return i % 2 == 0;
|
|
}); //dojo.NodeList
|
|
}
|
|
});
|
|
|
|
}
|