@@ -82,19 +84,20 @@ Ext.DomQuery = function(){
nthRe = /(\d*)n\+?(\d*)/,
nthRe2 = /\D/,
// This is for IE MSXML which does not support expandos.
- // IE runs the same speed using setAttribute, however FF slows way down
- // and Safari completely fails so they need to continue to use expandos.
- isIE = window.ActiveXObject ? true : false,
- isOpera = Ext.isOpera,
- key = 30803;
-
+ // IE runs the same speed using setAttribute, however FF slows way down
+ // and Safari completely fails so they need to continue to use expandos.
+ isIE = window.ActiveXObject ? true : false,
+ key = 30803;
+
// this eval is stop the compressor from
- // renaming the variable to something shorter
- eval("var batch = 30803;");
+ // renaming the variable to something shorter
+ eval("var batch = 30803;");
- function child(p, index){
+ // Retrieve the child node from a particular
+ // parent at the specified index.
+ function child(parent, index){
var i = 0,
- n = p.firstChild;
+ n = parent.firstChild;
while(n){
if(n.nodeType == 1){
if(++i == index){
@@ -104,53 +107,65 @@ Ext.DomQuery = function(){
n = n.nextSibling;
}
return null;
- };
+ }
- function next(n){
+ // retrieve the next element node
+ function next(n){
while((n = n.nextSibling) && n.nodeType != 1);
return n;
- };
+ }
+ // retrieve the previous element node
function prev(n){
while((n = n.previousSibling) && n.nodeType != 1);
return n;
- };
+ }
+
+ // Mark each child node with a nodeIndex skipping and
+ // removing empty text nodes.
+ function children(parent){
+ var n = parent.firstChild,
+ nodeIndex = -1,
+ nextNode;
+ while(n){
+ nextNode = n.nextSibling;
+ // clean worthless empty nodes.
+ if(n.nodeType == 3 && !nonSpace.test(n.nodeValue)){
+ parent.removeChild(n);
+ }else{
+ // add an expando nodeIndex
+ n.nodeIndex = ++nodeIndex;
+ }
+ n = nextNode;
+ }
+ return this;
+ }
- function children(d){
- var n = d.firstChild, ni = -1,
- nx;
- while(n){
- nx = n.nextSibling;
- if(n.nodeType == 3 && !nonSpace.test(n.nodeValue)){
- d.removeChild(n);
- }else{
- n.nodeIndex = ++ni;
- }
- n = nx;
- }
- return this;
- };
-
- function byClassName(c, a, v){
- if(!v){
- return c;
- }
- var r = [], ri = -1, cn;
- for(var i = 0, ci; ci = c[i]; i++){
- if((' '+ci.className+' ').indexOf(v) != -1){
- r[++ri] = ci;
+
+ // nodeSet - array of nodes
+ // cls - CSS Class
+ function byClassName(nodeSet, cls){
+ if(!cls){
+ return nodeSet;
+ }
+ var result = [], ri = -1;
+ for(var i = 0, ci; ci = nodeSet[i]; i++){
+ if((' '+ci.className+' ').indexOf(cls) != -1){
+ result[++ri] = ci;
}
}
- return r;
+ return result;
};
function attrValue(n, attr){
+ // if its an array, use the first node.
if(!n.tagName && typeof n.length != "undefined"){
n = n[0];
}
if(!n){
return null;
}
+
if(attr == "for"){
return n.htmlFor;
}
@@ -161,15 +176,23 @@ Ext.DomQuery = function(){
};
+
+ // ns - nodes
+ // mode - false, /, >, +, ~
+ // tagName - defaults to "*"
function getNodes(ns, mode, tagName){
var result = [], ri = -1, cs;
if(!ns){
return result;
}
tagName = tagName || "*";
+ // convert to array
if(typeof ns.getElementsByTagName != "undefined"){
ns = [ns];
}
+
+ // no mode specified, grab all elements by tagName
+ // at any depth
if(!mode){
for(var i = 0, ni; ni = ns[i]; i++){
cs = ni.getElementsByTagName(tagName);
@@ -177,16 +200,20 @@ Ext.DomQuery = function(){
result[++ri] = ci;
}
}
- }else if(mode == "/" || mode == ">"){
+ // Direct Child mode (/ or >)
+ // E > F or E/F all direct children elements of E that have the tag
+ } else if(mode == "/" || mode == ">"){
var utag = tagName.toUpperCase();
for(var i = 0, ni, cn; ni = ns[i]; i++){
- cn = isOpera ? ni.childNodes : (ni.children || ni.childNodes);
+ cn = ni.childNodes;
for(var j = 0, cj; cj = cn[j]; j++){
if(cj.nodeName == utag || cj.nodeName == tagName || tagName == '*'){
result[++ri] = cj;
}
}
}
+ // Immediately Preceding mode (+)
+ // E + F all elements with the tag F that are immediately preceded by an element with the tag E
}else if(mode == "+"){
var utag = tagName.toUpperCase();
for(var i = 0, n; n = ns[i]; i++){
@@ -195,6 +222,8 @@ Ext.DomQuery = function(){
result[++ri] = n;
}
}
+ // Sibling mode (~)
+ // E ~ F all elements with the tag F that are preceded by a sibling element with the tag E
}else if(mode == "~"){
var utag = tagName.toUpperCase();
for(var i = 0, n; n = ns[i]; i++){
@@ -206,7 +235,7 @@ Ext.DomQuery = function(){
}
}
return result;
- };
+ }
function concat(a, b){
if(b.slice){
@@ -225,69 +254,81 @@ Ext.DomQuery = function(){
if(!tagName){
return cs;
}
- var r = [], ri = -1;
+ var result = [], ri = -1;
tagName = tagName.toLowerCase();
for(var i = 0, ci; ci = cs[i]; i++){
- if(ci.nodeType == 1 && ci.tagName.toLowerCase()==tagName){
- r[++ri] = ci;
+ if(ci.nodeType == 1 && ci.tagName.toLowerCase() == tagName){
+ result[++ri] = ci;
}
}
- return r;
- };
+ return result;
+ }
- function byId(cs, attr, id){
+ function byId(cs, id){
if(cs.tagName || cs == document){
cs = [cs];
}
if(!id){
return cs;
}
- var r = [], ri = -1;
- for(var i = 0,ci; ci = cs[i]; i++){
+ var result = [], ri = -1;
+ for(var i = 0, ci; ci = cs[i]; i++){
if(ci && ci.id == id){
- r[++ri] = ci;
- return r;
+ result[++ri] = ci;
+ return result;
}
}
- return r;
- };
+ return result;
+ }
+ // operators are =, !=, ^=, $=, *=, %=, |= and ~=
+ // custom can be "{"
function byAttribute(cs, attr, value, op, custom){
- var r = [],
- ri = -1,
- st = custom=="{",
- f = Ext.DomQuery.operators[op];
+ var result = [],
+ ri = -1,
+ useGetStyle = custom == "{",
+ fn = Ext.DomQuery.operators[op],
+ a,
+ innerHTML;
for(var i = 0, ci; ci = cs[i]; i++){
+ // skip non-element nodes.
if(ci.nodeType != 1){
continue;
}
- var a;
- if(st){
- a = Ext.DomQuery.getStyle(ci, attr);
- }
- else if(attr == "class" || attr == "className"){
- a = ci.className;
- }else if(attr == "for"){
- a = ci.htmlFor;
- }else if(attr == "href"){
- a = ci.getAttribute("href", 2);
+
+ innerHTML = ci.innerHTML;
+ // we only need to change the property names if we're dealing with html nodes, not XML
+ if(innerHTML !== null && innerHTML !== undefined){
+ if(useGetStyle){
+ a = Ext.DomQuery.getStyle(ci, attr);
+ } else if (attr == "class" || attr == "className"){
+ a = ci.className;
+ } else if (attr == "for"){
+ a = ci.htmlFor;
+ } else if (attr == "href"){
+ // getAttribute href bug
+ // http://www.glennjones.net/Post/809/getAttributehrefbug.htm
+ a = ci.getAttribute("href", 2);
+ } else{
+ a = ci.getAttribute(attr);
+ }
}else{
a = ci.getAttribute(attr);
}
- if((f && f(a, value)) || (!f && a)){
- r[++ri] = ci;
+ if((fn && fn(a, value)) || (!fn && a)){
+ result[++ri] = ci;
}
}
- return r;
- };
+ return result;
+ }
function byPseudo(cs, name, value){
return Ext.DomQuery.pseudos[name](cs, value);
- };
+ }
function nodupIEXml(cs){
var d = ++key,
- r;
+ r;
cs[0].setAttribute("_nodup", d);
r = [cs[0]];
for(var i = 1, len = cs.length; i < len; i++){
@@ -338,7 +379,7 @@ Ext.DomQuery = function(){
function quickDiffIEXml(c1, c2){
var d = ++key,
- r = [];
+ r = [];
for(var i = 0, len = c1.length; i < len; i++){
c1[i].setAttribute("_qdiff", d);
}
@@ -360,7 +401,7 @@ Ext.DomQuery = function(){
if(!len1){
return c2;
}
- if(isIE && c1[0].selectSingleNode){
+ if(isIE && typeof c1[0].selectSingleNode != "undefined"){
return quickDiffIEXml(c1, c2);
}
for(var i = 0; i < len1; i++){
@@ -380,7 +421,7 @@ Ext.DomQuery = function(){
return d.getElementById(id);
}
ns = getNodes(ns, mode, "*");
- return byId(ns, null, id);
+ return byId(ns, id);
}
return {
@@ -397,110 +438,141 @@ Ext.DomQuery = function(){
compile : function(path, type){
type = type || "select";
+ // setup fn preamble
var fn = ["var f = function(root){\n var mode; ++batch; var n = root || document;\n"],
- q = path, mode, lq,
- tk = Ext.DomQuery.matchers,
- tklen = tk.length,
- mm,
+ mode,
+ lastPath,
+ matchers = Ext.DomQuery.matchers,
+ matchersLn = matchers.length,
+ modeMatch,
// accept leading mode switch
- lmode = q.match(modeRe);
+ lmode = path.match(modeRe);
if(lmode && lmode[1]){
fn[fn.length] = 'mode="'+lmode[1].replace(trimRe, "")+'";';
- q = q.replace(lmode[1], "");
+ path = path.replace(lmode[1], "");
}
+
// strip leading slashes
while(path.substr(0, 1)=="/"){
path = path.substr(1);
}
- while(q && lq != q){
- lq = q;
- var tm = q.match(tagTokenRe);
+ while(path && lastPath != path){
+ lastPath = path;
+ var tokenMatch = path.match(tagTokenRe);
if(type == "select"){
- if(tm){
- if(tm[1] == "#"){
- fn[fn.length] = 'n = quickId(n, mode, root, "'+tm[2]+'");';
+ if(tokenMatch){
+ // ID Selector
+ if(tokenMatch[1] == "#"){
+ fn[fn.length] = 'n = quickId(n, mode, root, "'+tokenMatch[2]+'");';
}else{
- fn[fn.length] = 'n = getNodes(n, mode, "'+tm[2]+'");';
+ fn[fn.length] = 'n = getNodes(n, mode, "'+tokenMatch[2]+'");';
}
- q = q.replace(tm[0], "");
- }else if(q.substr(0, 1) != '@'){
+ path = path.replace(tokenMatch[0], "");
+ }else if(path.substr(0, 1) != '@'){
fn[fn.length] = 'n = getNodes(n, mode, "*");';
}
+ // type of "simple"
}else{
- if(tm){
- if(tm[1] == "#"){
- fn[fn.length] = 'n = byId(n, null, "'+tm[2]+'");';
+ if(tokenMatch){
+ if(tokenMatch[1] == "#"){
+ fn[fn.length] = 'n = byId(n, "'+tokenMatch[2]+'");';
}else{
- fn[fn.length] = 'n = byTag(n, "'+tm[2]+'");';
+ fn[fn.length] = 'n = byTag(n, "'+tokenMatch[2]+'");';
}
- q = q.replace(tm[0], "");
+ path = path.replace(tokenMatch[0], "");
}
}
- while(!(mm = q.match(modeRe))){
+ while(!(modeMatch = path.match(modeRe))){
var matched = false;
- for(var j = 0; j < tklen; j++){
- var t = tk[j];
- var m = q.match(t.re);
+ for(var j = 0; j < matchersLn; j++){
+ var t = matchers[j];
+ var m = path.match(t.re);
if(m){
fn[fn.length] = t.select.replace(tplRe, function(x, i){
- return m[i];
- });
- q = q.replace(m[0], "");
+ return m[i];
+ });
+ path = path.replace(m[0], "");
matched = true;
break;
}
}
// prevent infinite loop on bad selector
if(!matched){
- throw 'Error parsing selector, parsing failed at "' + q + '"';
+ throw 'Error parsing selector, parsing failed at "' + path + '"';
}
}
- if(mm[1]){
- fn[fn.length] = 'mode="'+mm[1].replace(trimRe, "")+'";';
- q = q.replace(mm[1], "");
+ if(modeMatch[1]){
+ fn[fn.length] = 'mode="'+modeMatch[1].replace(trimRe, "")+'";';
+ path = path.replace(modeMatch[1], "");
}
}
+ // close fn out
fn[fn.length] = "return nodup(n);\n}";
+
+ // eval fn and return it
eval(fn.join(""));
return f;
},
- /**
+ /**
* Selects a group of elements.
* @param {String} selector The selector/xpath query (can be a comma separated list of selectors)
- * @param {Node} root (optional) The start of the query (defaults to document).
+ * @param {Node/String} root (optional) The start of the query (defaults to document).
* @return {Array} An Array of DOM elements which match the selector. If there are
* no matches, and empty Array is returned.
*/
- select : function(path, root, type){
- if(!root || root == document){
- root = document;
- }
+ jsSelect: function(path, root, type){
+ // set root to doc if not specified.
+ root = root || document;
+
if(typeof root == "string"){
root = document.getElementById(root);
}
var paths = path.split(","),
results = [];
- for(var i = 0, len = paths.length; i < len; i++){
- var p = paths[i].replace(trimRe, "");
- if(!cache[p]){
- cache[p] = Ext.DomQuery.compile(p);
- if(!cache[p]){
- throw p + " is not a valid selector";
+
+ // loop over each selector
+ for(var i = 0, len = paths.length; i < len; i++){
+ var subPath = paths[i].replace(trimRe, "");
+ // compile and place in cache
+ if(!cache[subPath]){
+ cache[subPath] = Ext.DomQuery.compile(subPath);
+ if(!cache[subPath]){
+ throw subPath + " is not a valid selector";
}
}
- var result = cache[p](root);
+ var result = cache[subPath](root);
if(result && result != document){
results = results.concat(result);
}
}
+
+ // if there were multiple selectors, make sure dups
+ // are eliminated
if(paths.length > 1){
return nodup(results);
}
return results;
},
+ isXml: function(el) {
+ var docEl = (el ? el.ownerDocument || el : 0).documentElement;
+ return docEl ? docEl.nodeName !== "HTML" : false;
+ },
+ select : document.querySelectorAll ? function(path, root, type) {
+ root = root || document;
+ if (!Ext.DomQuery.isXml(root)) {
+ try {
+ var cs = root.querySelectorAll(path);
+ return Ext.toArray(cs);
+ }
+ catch (ex) {}
+ }
+ return Ext.DomQuery.jsSelect.call(this, path, root, type);
+ } : function(path, root, type) {
+ return Ext.DomQuery.jsSelect.call(this, path, root, type);
+ },
/**
* Selects a single element.
@@ -524,9 +596,15 @@ Ext.DomQuery = function(){
if(!valueCache[path]){
valueCache[path] = Ext.DomQuery.compile(path, "select");
}
- var n = valueCache[path](root),
- v;
+ var n = valueCache[path](root), v;
n = n[0] ? n[0] : n;
+
+ // overcome a limitation of maximum textnode size
+ // Rumored to potentially crash IE6 but has not been confirmed.
+ // http://reference.sitepoint.com/javascript/Node/normalize
+ // https://developer.mozilla.org/En/DOM/Node.normalize
+ if (typeof n.normalize == 'function') n.normalize();
+
v = (n && n.firstChild ? n.firstChild.nodeValue : null);
return ((v === null||v === undefined||v==='') ? defaultValue : v);
},
@@ -578,10 +656,12 @@ Ext.DomQuery = function(){
/**
* Collection of matching regular expressions and code snippets.
+ * Each capture group within () will be replace the {} in the select
+ * statement as specified by their index.
*/
matchers : [{
re: /^\.([\w-]+)/,
- select: 'n = byClassName(n, null, " {1} ");'
+ select: 'n = byClassName(n, " {1} ");'
}, {
re: /^\:([\w-]+)(?:\(((?:[^\s>\/]*|.*?))\))?/,
select: 'n = byPseudo(n, "{1}", "{2}");'
@@ -590,7 +670,7 @@ Ext.DomQuery = function(){
select: 'n = byAttribute(n, "{2}", "{4}", "{3}", "{1}");'
}, {
re: /^#([\w-]+)/,
- select: 'n = byId(n, null, "{1}");'
+ select: 'n = byId(n, "{1}");'
},{
re: /^@([\w-]+)/,
select: 'return {firstChild:{nodeValue:attrValue(n, "{1}")}};'
@@ -629,8 +709,29 @@ Ext.DomQuery = function(){
},
/**
- * Collection of "pseudo class" processors. Each processor is passed the current nodeset (array)
- * and the argument (if any) supplied in the selector.
+ * Object hash of "pseudo class" filter functions which are used when filtering selections. Each function is passed
+ * two parameters:
+ * A filter function returns an Array of DOM elements which conform to the pseudo class.
+ * In addition to the provided pseudo classes listed above such as first-child and nth-child,
+ * developers may add additional, custom psuedo class filters to select elements according to application-specific requirements.
+ * For example, to filter <a> elements to only return links to external resources:
+ *
+Ext.DomQuery.pseudos.external = function(c, v){
+ var r = [], ri = -1;
+ for(var i = 0, ci; ci = c[i]; i++){
+// Include in result set only if it's a link to an external resource
+ if(ci.hostname != location.hostname){
+ r[++ri] = ci;
+ }
+ }
+ return r;
+};
+var externalLinks = Ext.select("a:external");
+