com.google.gwt.query.client.impl.SelectorEngineSizzleIE Maven / Gradle / Ivy
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/*
* Copyright 2011, The gwtquery team.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.query.client.impl;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.core.client.JsArray;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Node;
import com.google.gwt.dom.client.NodeList;
/**
* Original Sizzle CSS Selector Engine v1.0 inserted in a JSNI method.
* There are a couple of differences with the original:
* - It uses the window.IES instead of window.Sizzle to avoid interfering.
* - All the stuff related with non IE browsers has been removed making this
* implementation a bit faster and smaller.
*
* There are some reasons why we are using sizzle with IE instead of any other
* implementation.
* - Sizzle is the faster selector with IE we have tested.
* - Only IE8 under some conditions and with a limited set of selectors
* has a native and fast method for selecting dom elements. So we need
* a complete implementation in javascript.
* - We don't want to make the effort of writing a complete js implementation (DRY).
* - It is supposed this class will be here for a while, because new versions of
* IE are coming.
*/
public class SelectorEngineSizzleIE extends SelectorEngineImpl {
public static native void initialize() /*-{
(function(){
var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^\[\]]*\]|['"][^'"]*['"]|[^\[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
done = 0,
toString = Object.prototype.toString,
hasDuplicate = false;
var IES = function(selector, context, results, seed) {
results = results || [];
context = context || document;
var origContext = context;
if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
return [];
}
if ( !selector || typeof selector !== "string" ) {
return results;
}
var parts = [], m, set, checkSet, extra, prune = true, contextXML = IES.isXML(context),
soFar = selector, ret, cur, pop, i;
// Reset the position of the chunker regexp (start from head)
do {
chunker.exec("");
m = chunker.exec(soFar);
if ( m ) {
soFar = m[3];
parts.push( m[1] );
if ( m[2] ) {
extra = m[3];
break;
}
}
} while ( m );
if ( parts.length > 1 && origPOS.exec( selector ) ) {
if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
set = posProcess( parts[0] + parts[1], context );
} else {
set = Expr.relative[ parts[0] ] ?
[ context ] :
IES( parts.shift(), context );
while ( parts.length ) {
selector = parts.shift();
if ( Expr.relative[ selector ] ) {
selector += parts.shift();
}
set = posProcess( selector, set );
}
}
} else {
// Take a shortcut and set the context if the root selector is an ID
// (but not if it'll be faster if the inner selector is an ID)
if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
ret = IES.find( parts.shift(), context, contextXML );
context = ret.expr ? IES.filter( ret.expr, ret.set )[0] : ret.set[0];
}
if ( context ) {
ret = seed ?
{ expr: parts.pop(), set: makeArray(seed) } :
IES.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
set = ret.expr ? IES.filter( ret.expr, ret.set ) : ret.set;
if ( parts.length > 0 ) {
checkSet = makeArray(set);
} else {
prune = false;
}
while ( parts.length ) {
cur = parts.pop();
pop = cur;
if ( !Expr.relative[ cur ] ) {
cur = "-";
} else {
pop = parts.pop();
}
if ( pop == null ) {
pop = context;
}
Expr.relative[ cur ]( checkSet, pop, contextXML );
}
} else {
checkSet = parts = [];
}
}
if ( !checkSet ) {
checkSet = set;
}
if ( !checkSet ) {
IES.error( cur || selector );
}
if ( toString.call(checkSet) === "[object Array]" ) {
if ( !prune ) {
results.push.apply( results, checkSet );
} else if ( context && context.nodeType === 1 ) {
for ( i = 0; checkSet[i] != null; i++ ) {
if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && IES.contains(context, checkSet[i])) ) {
results.push( set[i] );
}
}
} else {
for ( i = 0; checkSet[i] != null; i++ ) {
if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
results.push( set[i] );
}
}
}
} else {
makeArray( checkSet, results );
}
if ( extra ) {
IES( extra, origContext, results, seed );
IES.uniqueSort( results );
}
return results;
};
IES.uniqueSort = function(results){
if ( sortOrder ) {
hasDuplicate = false;
results.sort(sortOrder);
if ( hasDuplicate ) {
for ( var i = 1; i < results.length; i++ ) {
if ( results[i] === results[i-1] ) {
results.splice(i--, 1);
}
}
}
}
return results;
};
IES.matches = function(expr, set){
return IES(expr, null, null, set);
};
IES.find = function(expr, context, isXML){
var set;
if ( !expr ) {
return [];
}
for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
var type = Expr.order[i], match;
if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
var left = match[1];
match.splice(1,1);
if ( left.substr( left.length - 1 ) !== "\\" ) {
match[1] = (match[1] || "").replace(/\\/g, "");
set = Expr.find[ type ]( match, context, isXML );
if ( set != null ) {
expr = expr.replace( Expr.match[ type ], "" );
break;
}
}
}
}
if ( !set ) {
set = context.getElementsByTagName("*");
}
return {set: set, expr: expr};
};
IES.filter = function(expr, set, inplace, not){
var old = expr, result = [], curLoop = set, match, anyFound,
isXMLFilter = set && set[0] && IES.isXML(set[0]);
while ( expr && set.length ) {
for ( var type in Expr.filter ) {
if ( (match = Expr.leftMatch[ type ].exec( expr )) != null && match[2] ) {
var filter = Expr.filter[ type ], found, item, left = match[1];
anyFound = false;
match.splice(1,1);
if ( left.substr( left.length - 1 ) === "\\" ) {
continue;
}
if ( curLoop === result ) {
result = [];
}
if ( Expr.preFilter[ type ] ) {
match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
if ( !match ) {
anyFound = found = true;
} else if ( match === true ) {
continue;
}
}
if ( match ) {
for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
if ( item ) {
found = filter( item, match, i, curLoop );
var pass = not ^ !!found;
if ( inplace && found != null ) {
if ( pass ) {
anyFound = true;
} else {
curLoop[i] = false;
}
} else if ( pass ) {
result.push( item );
anyFound = true;
}
}
}
}
if ( found !== undefined ) {
if ( !inplace ) {
curLoop = result;
}
expr = expr.replace( Expr.match[ type ], "" );
if ( !anyFound ) {
return [];
}
break;
}
}
}
// Improper expression
if ( expr === old ) {
if ( anyFound == null ) {
IES.error( expr );
} else {
break;
}
}
old = expr;
}
return curLoop;
};
IES.error = function( msg ) {
throw "Syntax error, unrecognized expression: " + msg;
};
var Expr = IES.selectors = {
order: [ "ID", "NAME", "TAG" ],
match: {
ID: /#((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
CLASS: /\.((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF\-]|\\.)+)['"]*\]/,
ATTR: /\[\s*((?:[\w\u00c0-\uFFFF\-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
TAG: /^((?:[\w\u00c0-\uFFFF\*\-]|\\.)+)/,
CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+\-]*)\))?/,
POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^\-]|$)/,
PSEUDO: /:((?:[\w\u00c0-\uFFFF\-]|\\.)+)(?:\((['"]?)((?:\([^\)]+\)|[^\(\)]*)+)\2\))?/
},
leftMatch: {},
attrMap: {
"class": "className",
"for": "htmlFor"
},
attrHandle: {
href: function(elem){
return elem.getAttribute("href", 2);
}
},
relative: {
"+": function(checkSet, part){
var isPartStr = typeof part === "string",
isTag = isPartStr && !/\W/.test(part),
isPartStrNotTag = isPartStr && !isTag;
if ( isTag ) {
part = part.toLowerCase();
}
for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
if ( (elem = checkSet[i]) ) {
while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
checkSet[i] = isPartStrNotTag || elem && elem.nodeName.toLowerCase() === part ?
elem || false :
elem === part;
}
}
if ( isPartStrNotTag ) {
IES.filter( part, checkSet, true );
}
},
">": function(checkSet, part){
var isPartStr = typeof part === "string",
elem, i = 0, l = checkSet.length;
if ( isPartStr && !/\W/.test(part) ) {
part = part.toLowerCase();
for ( ; i < l; i++ ) {
elem = checkSet[i];
if ( elem ) {
var parent = elem.parentNode;
checkSet[i] = parent.nodeName.toLowerCase() === part ? parent : false;
}
}
} else {
for ( ; i < l; i++ ) {
elem = checkSet[i];
if ( elem ) {
checkSet[i] = isPartStr ?
elem.parentNode :
elem.parentNode === part;
}
}
if ( isPartStr ) {
IES.filter( part, checkSet, true );
}
}
},
"-": function(checkSet, part, isXML){
var doneName = done++, checkFn = dirCheck, nodeCheck;
if ( typeof part === "string" && !/\W/.test(part) ) {
part = part.toLowerCase();
nodeCheck = part;
checkFn = dirNodeCheck;
}
checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
},
"~": function(checkSet, part, isXML){
var doneName = done++, checkFn = dirCheck, nodeCheck;
if ( typeof part === "string" && !/\W/.test(part) ) {
part = part.toLowerCase();
nodeCheck = part;
checkFn = dirNodeCheck;
}
checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
}
},
find: {
ID: function(match, context, isXML){
if ( typeof context.getElementById !== "undefined" && !isXML ) {
var m = context.getElementById(match[1]);
return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
}
},
NAME: function(match, context){
if ( typeof context.getElementsByName !== "undefined" ) {
var ret = [], results = context.getElementsByName(match[1]);
for ( var i = 0, l = results.length; i < l; i++ ) {
if ( results[i].getAttribute("name") === match[1] ) {
ret.push( results[i] );
}
}
return ret.length === 0 ? null : ret;
}
},
// IE espedific
TAG: function(match, context){
var results = context.getElementsByTagName(match[1]);
// Filter out possible comments
if ( match[1] === "*" ) {
var tmp = [];
for ( var i = 0; results[i]; i++ ) {
if ( results[i].nodeType === 1 ) {
tmp.push( results[i] );
}
}
results = tmp;
}
return results;
}
},
preFilter: {
CLASS: function(match, curLoop, inplace, result, not, isXML){
match = " " + match[1].replace(/\\/g, "") + " ";
if ( isXML ) {
return match;
}
for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
if ( elem ) {
if ( not ^ (elem.className && (" " + elem.className + " ").replace(/[\t\n]/g, " ").indexOf(match) >= 0) ) {
if ( !inplace ) {
result.push( elem );
}
} else if ( inplace ) {
curLoop[i] = false;
}
}
}
return false;
},
ID: function(match){
return match[1].replace(/\\/g, "");
},
TAG: function(match, curLoop){
return match[1].toLowerCase();
},
CHILD: function(match){
if ( match[1] === "nth" ) {
// parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" ||
!/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
// calculate the numbers (first)n+(last) including if they are negative
match[2] = (test[1] + (test[2] || 1)) - 0;
match[3] = test[3] - 0;
}
// TODO: Move to normal caching system
match[0] = done++;
return match;
},
ATTR: function(match, curLoop, inplace, result, not, isXML){
var name = match[1].replace(/\\/g, "");
if ( !isXML && Expr.attrMap[name] ) {
match[1] = Expr.attrMap[name];
}
if ( match[2] === "~=" ) {
match[4] = " " + match[4] + " ";
}
return match;
},
PSEUDO: function(match, curLoop, inplace, result, not){
if ( match[1] === "not" ) {
// If we're dealing with a complex expression, or a simple one
if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
match[3] = IES(match[3], null, null, curLoop);
} else {
var ret = IES.filter(match[3], curLoop, inplace, true ^ not);
if ( !inplace ) {
result.push.apply( result, ret );
}
return false;
}
} else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
return true;
}
return match;
},
POS: function(match){
match.unshift( true );
return match;
}
},
filters: {
enabled: function(elem){
return elem.disabled === false && elem.type !== "hidden";
},
disabled: function(elem){
return elem.disabled === true;
},
checked: function(elem){
return elem.checked === true;
},
selected: function(elem){
// Accessing this property makes selected-by-default
// options in Safari work properly
elem.parentNode.selectedIndex;
return elem.selected === true;
},
parent: function(elem){
return !!elem.firstChild;
},
empty: function(elem){
return !elem.firstChild;
},
has: function(elem, i, match){
return !!IES( match[3], elem ).length;
},
header: function(elem){
return (/h\d/i).test( elem.nodeName );
},
text: function(elem){
return "text" === elem.type;
},
radio: function(elem){
return "radio" === elem.type;
},
checkbox: function(elem){
return "checkbox" === elem.type;
},
file: function(elem){
return "file" === elem.type;
},
password: function(elem){
return "password" === elem.type;
},
submit: function(elem){
return "submit" === elem.type;
},
image: function(elem){
return "image" === elem.type;
},
reset: function(elem){
return "reset" === elem.type;
},
button: function(elem){
return "button" === elem.type || elem.nodeName.toLowerCase() === "button";
},
input: function(elem){
return (/input|select|textarea|button/i).test(elem.nodeName);
}
},
setFilters: {
first: function(elem, i){
return i === 0;
},
last: function(elem, i, match, array){
return i === array.length - 1;
},
even: function(elem, i){
return i % 2 === 0;
},
odd: function(elem, i){
return i % 2 === 1;
},
lt: function(elem, i, match){
return i < match[3] - 0;
},
gt: function(elem, i, match){
return i > match[3] - 0;
},
nth: function(elem, i, match){
return match[3] - 0 === i;
},
eq: function(elem, i, match){
return match[3] - 0 === i;
}
},
filter: {
PSEUDO: function(elem, match, i, array){
var name = match[1], filter = Expr.filters[ name ];
if ( filter ) {
return filter( elem, i, match, array );
} else if ( name === "contains" ) {
return (elem.textContent || elem.innerText || IES.getText([ elem ]) || "").indexOf(match[3]) >= 0;
} else if ( name === "not" ) {
var not = match[3];
for ( var j = 0, l = not.length; j < l; j++ ) {
if ( not[j] === elem ) {
return false;
}
}
return true;
} else {
IES.error( "Syntax error, unrecognized expression: " + name );
}
},
CHILD: function(elem, match){
var type = match[1], node = elem;
switch (type) {
case 'only':
case 'first':
while ( (node = node.previousSibling) ) {
if ( node.nodeType === 1 ) {
return false;
}
}
if ( type === "first" ) {
return true;
}
node = elem;
case 'last':
while ( (node = node.nextSibling) ) {
if ( node.nodeType === 1 ) {
return false;
}
}
return true;
case 'nth':
var first = match[2], last = match[3];
if ( first === 1 && last === 0 ) {
return true;
}
var doneName = match[0],
parent = elem.parentNode;
if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
var count = 0;
for ( node = parent.firstChild; node; node = node.nextSibling ) {
if ( node.nodeType === 1 ) {
node.nodeIndex = ++count;
}
}
parent.sizcache = doneName;
}
var diff = elem.nodeIndex - last;
if ( first === 0 ) {
return diff === 0;
} else {
return ( diff % first === 0 && diff / first >= 0 );
}
}
},
ID: function(elem, match){
var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
return elem.nodeType === 1 && node && node.nodeValue === match;
},
TAG: function(elem, match){
return (match === "*" && elem.nodeType === 1) || elem.nodeName.toLowerCase() === match;
},
CLASS: function(elem, match){
return (" " + (elem.className || elem.getAttribute("class")) + " ")
.indexOf( match ) > -1;
},
ATTR: function(elem, match){
var name = match[1],
result = Expr.attrHandle[ name ] ?
Expr.attrHandle[ name ]( elem ) :
elem[ name ] != null ?
elem[ name ] :
elem.getAttribute( name ),
value = result + "",
type = match[2],
check = match[4];
return result == null ?
type === "!=" :
type === "=" ?
value === check :
type === "*=" ?
value.indexOf(check) >= 0 :
type === "~=" ?
(" " + value + " ").indexOf(check) >= 0 :
!check ?
value && result !== false :
type === "!=" ?
value !== check :
type === "^=" ?
value.indexOf(check) === 0 :
type === "$=" ?
value.substr(value.length - check.length) === check :
type === "|=" ?
value === check || value.substr(0, check.length + 1) === check + "-" :
false;
},
POS: function(elem, match, i, array){
var name = match[2], filter = Expr.setFilters[ name ];
if ( filter ) {
return filter( elem, i, match, array );
}
}
}
};
var origPOS = Expr.match.POS,
fescape = function(all, num){
return "\\" + (num - 0 + 1);
};
for ( var type in Expr.match ) {
Expr.match[ type ] = new RegExp( Expr.match[ type ].source + (/(?![^\[]*\])(?![^\(]*\))/.source) );
Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source.replace(/\\(\d+)/g, fescape) );
}
var makeArray = function(array, results) {
array = Array.prototype.slice.call( array, 0 );
if ( results ) {
results.push.apply( results, array );
return results;
}
return array;
};
// Perform a simple check to determine if the browser is capable of
// converting a NodeList to an array using builtin methods.
// Also verifies that the returned array holds DOM nodes
// (which is not the case in the Blackberry browser)
try {
Array.prototype.slice.call( document.documentElement.childNodes, 0 )[0].nodeType;
// Provide a fallback method if it does not work
} catch(e){
makeArray = function(array, results) {
var ret = results || [], i = 0;
if ( toString.call(array) === "[object Array]" ) {
Array.prototype.push.apply( ret, array );
} else {
if ( typeof array.length === "number" ) {
for ( var l = array.length; i < l; i++ ) {
ret.push( array[i] );
}
} else {
for ( ; array[i]; i++ ) {
ret.push( array[i] );
}
}
}
return ret;
};
}
var sortOrder = function( a, b ) {
if ( !a.sourceIndex || !b.sourceIndex ) {
if ( a == b ) {
hasDuplicate = true;
}
return a.sourceIndex ? -1 : 1;
}
var ret = a.sourceIndex - b.sourceIndex;
if ( ret === 0 ) {
hasDuplicate = true;
}
return ret;
};
// Utility function for retreiving the text value of an array of DOM nodes
IES.getText = function( elems ) {
var ret = "", elem;
for ( var i = 0; elems[i]; i++ ) {
elem = elems[i];
// Get the text from text nodes and CDATA nodes
if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
ret += elem.nodeValue;
// Traverse everything else, except comment nodes
} else if ( elem.nodeType !== 8 ) {
ret += IES.getText( elem.childNodes );
}
}
return ret;
};
function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
for ( var i = 0, l = checkSet.length; i < l; i++ ) {
var elem = checkSet[i];
if ( elem ) {
elem = elem[dir];
var match = false;
while ( elem ) {
if ( elem.sizcache === doneName ) {
match = checkSet[elem.sizset];
break;
}
if ( elem.nodeType === 1 && !isXML ){
elem.sizcache = doneName;
elem.sizset = i;
}
if ( elem.nodeName.toLowerCase() === cur ) {
match = elem;
break;
}
elem = elem[dir];
}
checkSet[i] = match;
}
}
}
function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
for ( var i = 0, l = checkSet.length; i < l; i++ ) {
var elem = checkSet[i];
if ( elem ) {
elem = elem[dir];
var match = false;
while ( elem ) {
if ( elem.sizcache === doneName ) {
match = checkSet[elem.sizset];
break;
}
if ( elem.nodeType === 1 ) {
if ( !isXML ) {
elem.sizcache = doneName;
elem.sizset = i;
}
if ( typeof cur !== "string" ) {
if ( elem === cur ) {
match = true;
break;
}
} else if ( IES.filter( cur, [elem] ).length > 0 ) {
match = elem;
break;
}
}
elem = elem[dir];
}
checkSet[i] = match;
}
}
}
IES.contains = function(a, b) {
return a !== b && (a.contains ? a.contains(b) : true);
};
IES.isXML = function(elem){
// documentElement is verified for cases where it doesn't yet exist
// (such as loading iframes in IE - #4833)
var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
return documentElement ? documentElement.nodeName !== "HTML" : false;
};
var posProcess = function(selector, context){
var tmpSet = [], later = "", match,
root = context.nodeType ? [context] : context;
// Position selectors must be done after the filter
// And so must :not(positional) so we move all PSEUDOs to the end
while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
later += match[0];
selector = selector.replace( Expr.match.PSEUDO, "" );
}
selector = Expr.relative[selector] ? selector + "*" : selector;
for ( var i = 0, l = root.length; i < l; i++ ) {
IES( selector, root[i], tmpSet );
}
return IES.filter( later, tmpSet );
};
// EXPOSE
window.IES = IES;
$wnd.IES = IES;
})();
}-*/;
private static native JsArray select(String selector, Node context, JsArray results, JsArray seed) /*-{
return $wnd.IES(selector, context, results, seed);
}-*/;
static boolean initialized = false;
public SelectorEngineSizzleIE() {
if (!initialized) {
initialize();
}
}
public NodeList select(String selector, Node context) {
JsArray results = JavaScriptObject.createArray().cast();
return select(selector, context, results, null).cast();
}
}