/*
Copyright 2008-2013 Clipperz Srl
This file is part of Clipperz, the online password manager.
For further information about its features and functionalities please
refer to http://www.clipperz.com.
* Clipperz is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
* Clipperz is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public
License along with Clipperz. If not, see http://www.gnu.org/licenses/.
*/
if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
if (typeof(Clipperz.YUI) == 'undefined') { Clipperz.YUI = {}; }
/*
* yui-ext 0.40
* Copyright(c) 2006, Jack Slocum.
*/
/**
* @class Clipperz.YUI.DomQuery
* Provides high performance selector/xpath processing by compiling queries into reusable functions.
* New pseudo classes and matchers can be plugged. It works on HTML and XML documents (if a content node is passed in).
* @singleton
*/
Clipperz.YUI.DomQuery = function(){
var cache = {}, simpleCache = {}, valueCache = {};
var nonSpace = /\S/;
var trimRe = /^\s*(.*?)\s*$/;
var tplRe = /\{(\d+)\}/g;
var modeRe = /^(\s?[\/>]\s?|\s|$)/;
var clsRes = {};
function child(p, index){
var i = 0;
var n = p.firstChild;
while(n){
if(n.nodeType == 1){
i++;
if(i == index){
return n;
}
}
n = n.nextSibling;
}
return null;
};
function next(d){
var n = d.nextSibling;
while(n && n.nodeType != 1){
n = n.nextSibling;
}
return n;
};
function prev(d){
var n = d.previousSibling;
while(n && n.nodeType != 1){
n = n.previousSibling;
}
return n;
};
function clean(d){
var n = d.firstChild, ni = -1;
while(n){
var 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 re = clsRes[v];
if(!re){
re = new RegExp('(?:^|\\s)(?:' + v + ')(?:\\s|$)');
clsRes[v] = re;
}
var r = [];
for(var i = 0, ci; ci = c[i]; i++){
if(re.test(ci.className)){
r[r.length] = ci;
}
}
return r;
};
function convert(c){
if(c.slice){
return c;
}
var r = [];
for(var i = 0, l = c.length; i < l; i++){
r[r.length] = c[i];
}
return r;
};
function attrValue(n, attr){
if(!n.tagName && typeof n.length != 'undefined'){
n = n[0];
}
if(!n){
return null;
}
if(attr == 'for'){
return n.htmlFor;
}
if(attr == 'class' || attr == 'className'){
return n.className;
}
return n.getAttribute(attr) || n[attr];
};
function getNodes(ns, mode, tagName){
var result = [], cs;
if(!ns){
return result;
}
mode = mode ? mode.replace(trimRe, '$1') : '';
tagName = tagName || '*';
if(ns.tagName || ns == document){
ns = [ns];
}
if(mode != '/' && mode != '>'){
for(var i = 0, ni; ni = ns[i]; i++){
cs = ni.getElementsByTagName(tagName);
result = concat(result, cs);
}
}else{
for(var i = 0, ni; ni = ns[i]; i++){
var cn = ni.getElementsByTagName(tagName);
for(var j = 0, cj; cj = cn[j]; j++){
if(cj.parentNode == ni){
result[result.length] = cj;
}
}
}
}
return result;
};
function concat(a, b){
if(b.slice){
return a.concat(b);
}
for(var i = 0, l = b.length; i < l; i++){
a[a.length] = b[i];
}
return a;
}
function byTag(cs, tagName){
if(cs.tagName || cs == document){
cs = [cs];
}
if(!tagName){
return cs;
}
var r = []; tagName = tagName.toLowerCase();
for(var i = 0, ci; ci = cs[i]; i++){
if(ci.nodeType == 1 && ci.tagName.toLowerCase()==tagName){
r[r.length] = ci;
}
}
return r;
};
function byId(cs, attr, id){
if(cs.tagName || cs == document){
cs = [cs];
}
if(!id){
return cs;
}
var r = [];
for(var i = 0, l = cs.length; i < l; i++){
var ci = cs[i];
if(ci && ci.id == id){
r[r.length] = ci;
}
}
return r;
};
function byAttribute(cs, attr, value, op, custom){
var r = [], st = custom=='{';
var f = Clipperz.YUI.DomQuery.operators[op];
for(var i = 0, l = cs.length; i < l; i++){
var a;
if(st){
a = Clipperz.YUI.DomQuery.getStyle(cs[i], attr);
}
else if(attr == 'class' || attr == 'className'){
a = cs[i].className;
}else if(attr == 'for'){
a = cs[i].htmlFor;
}else{
a = cs[i].getAttribute(attr);
}
if((f && f(a, value)) || (!f && a)){
r[r.length] = cs[i];
}
}
return r;
};
function byPseudo(cs, name, value){
return Clipperz.YUI.DomQuery.pseudos[name](cs, value);
};
// 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.
// Branched at load time for faster execution.
var isIE = window.ActiveXObject;
var addAttr = isIE ?
function(n, a, v){
n.setAttribute(a, v);
} :
function(n, a, v){
n[a] = v;
};
var getAttr = isIE ?
function(n, a){
return n.getAttribute(a);
} :
function(n, a){
return n[a];
};
var clearAttr = isIE ?
function(n, a){
n.removeAttribute(a);
} :
function(n, a, v){
delete n[a];
};
function nodup(cs){
if(!cs.length){
return cs;
}
addAttr(cs[0], '_nodup', true);
var r = [cs[0]];
for(var i = 1, len = cs.length; i < len; i++){
var c = cs[i];
if(!getAttr(c, '_nodup')){
addAttr(c, '_nodup', true);
r[r.length] = c;
}
}
for(var i = 0, len = cs.length; i < len; i++){
clearAttr(cs[i], '_nodup');
}
return r;
}
function quickDiff(c1, c2){
if(!c1.length){
return c2;
}
for(var i = 0, len = c1.length; i < len; i++){
addAttr(c1[i], '_qdiff', true);
}
var r = [];
for(var i = 0, len = c2.length; i < len; i++){
if(!getAttr(c2[i], '_qdiff')){
r[r.length] = c2[i];
}
}
for(var i = 0, len = c1.length; i < len; i++){
clearAttr(c1[i], '_qdiff');
}
return r;
}
function quickId(ns, mode, root, id){
if(ns == root){
var d = root.ownerDocument || root;
return d.getElementById(id);
}
ns = getNodes(ns, mode, '*');
return byId(ns, null, id);
}
return {
getStyle : function(el, name){
return YAHOO.util.Dom.getStyle(el, name);
},
/**
* Compiles a selector/xpath query into a reusable function. The returned function
* takes one parameter "root" (optional), which is the context node from where the query should start.
* @param {String} selector The selector/xpath query
* @param {String} type (optional) Either 'select' (the default) or 'simple' for a simple selector match
* @return {Function}
*/
compile : function(path, type){
// strip leading slashes
while(path.substr(0, 1)=='/'){
path = path.substr(1);
}
type = type || 'select';
var fn = ['var f = function(root){\n var mode; var n = root || document;\n'];
var q = path, mode, lq;
var tk = Clipperz.YUI.DomQuery.matchers;
var tklen = tk.length;
var mm;
while(q && lq != q){
lq = q;
var tm = q.match(/^(#)?([\w-\*]+)/);
if(type == 'select'){
if(tm){
if(tm[1] == '#'){
fn[fn.length] = 'n = quickId(n, mode, root, "'+tm[2]+'");';
}else{
fn[fn.length] = 'n = getNodes(n, mode, "'+tm[2]+'");';
}
q = q.replace(tm[0], '');
}else{
fn[fn.length] = 'n = getNodes(n, mode, "*");';
}
}else{
if(tm){
if(tm[1] == '#'){
fn[fn.length] = 'n = byId(n, null, "'+tm[2]+'");';
}else{
fn[fn.length] = 'n = byTag(n, "'+tm[2]+'");';
}
q = q.replace(tm[0], '');
}
}
while(!(mm = q.match(modeRe))){
var matched = false;
for(var j = 0; j < tklen; j++){
var t = tk[j];
var m = q.match(t.re);
if(m){
fn[fn.length] = t.select.replace(tplRe, function(x, i){
return m[i];
});
q = q.replace(m[0], '');
matched = true;
break;
}
}
// prevent infinite loop on bad selector
if(!matched){
throw 'Error parsing selector, parsing failed at "' + q + '"';
}
}
if(mm[1]){
fn[fn.length] = 'mode="'+mm[1]+'";';
q = q.replace(mm[1], '');
}
}
fn[fn.length] = 'return nodup(n);\n}';
eval(fn.join(''));
return f;
},
/**
* Selects a group of elements.
* @param {String} selector The selector/xpath query
* @param {Node} root (optional) The start of the query (defaults to document).
* @return {Array}
*/
select : function(path, root, type){
if(!root || root == document){
root = document;
}
if(typeof root == 'string'){
root = document.getElementById(root);
}
var paths = path.split(',');
var results = [];
for(var i = 0, len = paths.length; i < len; i++){
var p = paths[i].replace(trimRe, '$1');
if(!cache[p]){
cache[p] = Clipperz.YUI.DomQuery.compile(p);
if(!cache[p]){
throw p + ' is not a valid selector';
}
}
var result = cache[p](root);
if(result && result != document){
results = results.concat(result);
}
}
return results;
},
/**
* Selects a single element.
* @param {String} selector The selector/xpath query
* @param {Node} root (optional) The start of the query (defaults to document).
* @return {Element}
*/
selectNode : function(path, root){
return Clipperz.YUI.DomQuery.select(path, root)[0];
},
/**
* Selects the value of a node, optionally replacing null with the defaultValue.
* @param {String} selector The selector/xpath query
* @param {Node} root (optional) The start of the query (defaults to document).
* @param {String} defaultValue
*/
selectValue : function(path, root, defaultValue){
path = path.replace(trimRe, '$1');
if(!valueCache[path]){
valueCache[path] = Clipperz.YUI.DomQuery.compile(path, 'simple');
}
var n = valueCache[path](root);
n = n[0] ? n[0] : n;
var v = (n && n.firstChild ? n.firstChild.nodeValue : null);
return (v === null ? defaultValue : v);
},
/**
* Selects the value of a node, parsing integers and floats.
* @param {String} selector The selector/xpath query
* @param {Node} root (optional) The start of the query (defaults to document).
* @param {Number} defaultValue
* @return {Number}
*/
selectNumber : function(path, root, defaultValue){
var v = Clipperz.YUI.DomQuery.selectValue(path, root, defaultValue || 0);
return parseFloat(v);
},
/**
* Returns true if the passed element(s) match the passed simple selector (e.g. div.some-class or span:first-child)
* @param {String/HTMLElement/Array} el An element id, element or array of elements
* @param {String} selector The simple selector to test
* @return {Boolean}
*/
is : function(el, ss){
if(typeof el == 'string'){
el = document.getElementById(el);
}
var isArray = (el instanceof Array);
var result = Clipperz.YUI.DomQuery.filter(isArray ? el : [el], ss);
return isArray ? (result.length == el.length) : (result.length > 0);
},
/**
* Filters an array of elements to only include matches of a simple selector (e.g. div.some-class or span:first-child)
* @param {Array} el An array of elements to filter
* @param {String} selector The simple selector to test
* @param {Boolean} nonMatches If true, it returns the elements that DON'T match
* the selector instead of the ones that match
* @return {Array}
*/
filter : function(els, ss, nonMatches){
ss = ss.replace(trimRe, '$1');
if(!simpleCache[ss]){
simpleCache[ss] = Clipperz.YUI.DomQuery.compile(ss, 'simple');
}
var result = simpleCache[ss](els);
return nonMatches ? quickDiff(result, els) : result;
},
/**
* Collection of matching regular expressions and code snippets.
*/
matchers : [{
re: /^\.([\w-]+)/,
select: 'n = byClassName(n, null, "{1}");'
}, {
re: /^\:([\w-]+)(?:\(((?:[^\s>\/]*|.*?))\))?/,
select: 'n = byPseudo(n, "{1}", "{2}");'
},{
re: /^(?:([\[\{])(?:@)?([\w-]+)\s?(?:(=|.=)\s?['"]?(.*?)["']?)?[\]\}])/,
select: 'n = byAttribute(n, "{2}", "{4}", "{3}", "{1}");'
}, {
re: /^#([\w-]+)/,
select: 'n = byId(n, null, "{1}");'
},{
re: /^@([\w-]+)/,
select: 'return {firstChild:{nodeValue:attrValue(n, "{1}")}};'
}
],
/**
* Collection of operator comparison functions. The default operators are =, !=, ^=, $=, *= and %=.
* New operators can be added as long as the match the format c= where c is any character other than space, > <.
*/
operators : {
'=' : function(a, v){
return a == v;
},
'!=' : function(a, v){
return a != v;
},
'^=' : function(a, v){
return a && a.substr(0, v.length) == v;
},
'$=' : function(a, v){
return a && a.substr(a.length-v.length) == v;
},
'*=' : function(a, v){
return a && a.indexOf(v) !== -1;
},
'%=' : function(a, v){
return (a % v) == 0;
}
},
/**
* Collection of "pseudo class" processors. Each processor is passed the current nodeset (array)
* and the argument (if any) supplied in the selector.
*/
pseudos : {
'first-child' : function(c){
var r = [];
for(var i = 0, l = c.length; i < l; i++){
var ci = c[i];
if(!prev(ci)){
r[r.length] = ci;
}
}
return r;
},
'last-child' : function(c){
var r = [];
for(var i = 0, l = c.length; i < l; i++){
var ci = c[i];
if(!next(ci)){
r[r.length] = ci;
}
}
return r;
},
'nth-child' : function(c, a){
var r = [];
if(a != 'odd' && a != 'even'){
for(var i = 0, ci; ci = c[i]; i++){
var m = child(ci.parentNode, a);
if(m == ci){
r[r.length] = m;
}
}
return r;
}
var p;
// first let's clean up the parent nodes
for(var i = 0, l = c.length; i < l; i++){
var cp = c[i].parentNode;
if(cp != p){
clean(cp);
p = cp;
}
}
// then lets see if we match
for(var i = 0, l = c.length; i < l; i++){
var ci = c[i], m = false;
if(a == 'odd'){
m = ((ci.nodeIndex+1) % 2 == 1);
}else if(a == 'even'){
m = ((ci.nodeIndex+1) % 2 == 0);
}
if(m){
r[r.length] = ci;
}
}
return r;
},
'only-child' : function(c){
var r = [];
for(var i = 0, l = c.length; i < l; i++){
var ci = c[i];
if(!prev(ci) && !next(ci)){
r[r.length] = ci;
}
}
return r;
},
'empty' : function(c){
var r = [];
for(var i = 0, l = c.length; i < l; i++){
var ci = c[i];
if(!ci.firstChild){
r[r.length] = ci;
}
}
return r;
},
'contains' : function(c, v){
var r = [];
for(var i = 0, l = c.length; i < l; i++){
var ci = c[i];
if(ci.innerHTML.indexOf(v) !== -1){
r[r.length] = ci;
}
}
return r;
},
'checked' : function(c){
var r = [];
for(var i = 0, l = c.length; i < l; i++){
if(c[i].checked == 'checked'){
r[r.length] = c[i];
}
}
return r;
},
'not' : function(c, ss){
return Clipperz.YUI.DomQuery.filter(c, ss, true);
},
'odd' : function(c){
return this['nth-child'](c, 'odd');
},
'even' : function(c){
return this['nth-child'](c, 'even');
},
'nth' : function(c, a){
return c[a-1];
},
'first' : function(c){
return c[0];
},
'last' : function(c){
return c[c.length-1];
},
'has' : function(c, ss){
var s = Clipperz.YUI.DomQuery.select;
var r = [];
for(var i = 0, ci; ci = c[i]; i++){
if(s(ss, ci).length > 0){
r[r.length] = ci;
}
}
return r;
},
'next' : function(c, ss){
var is = Clipperz.YUI.DomQuery.is;
var r = [];
for(var i = 0, ci; ci = c[i]; i++){
var n = next(ci);
if(n && is(n, ss)){
r[r.length] = ci;
}
}
return r;
},
'prev' : function(c, ss){
var is = Clipperz.YUI.DomQuery.is;
var r = [];
for(var i = 0, ci; ci = c[i]; i++){
var n = prev(ci);
if(n && is(n, ss)){
r[r.length] = ci;
}
}
return r;
}
}
};
}();
/**
* Selects an array of DOM nodes by CSS/XPath selector. Shorthand of {@link Clipperz.YUI.DomQuery#select}
* @param {String} path The selector/xpath query
* @param {Node} root (optional) The start of the query (defaults to document).
* @return {Array}
* @member Ext
* @method query
*/
Clipperz.YUI.query = Clipperz.YUI.DomQuery.select;