index now works in reverse when passed a selector or undefined. fixes #3971
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2 changed files with 40 additions and 24 deletions
12
src/core.js
12
src/core.js
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@ -182,10 +182,16 @@ jQuery.fn = jQuery.prototype = {
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// Determine the position of an element within
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// the matched set of elements
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index: function( elem ) {
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if ( !elem || typeof elem === "string" ) {
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return jQuery.inArray( this[0],
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// If it receives a string, the selector is used
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// If it receives nothing, the siblings are used
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elem ? jQuery( elem ) : this.parent().children() );
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}
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// Locate the position of the desired element
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return jQuery.inArray(
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// If it receives a jQuery object, the first element is used
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elem && elem.jquery ? elem[0] : elem, this );
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elem.jquery ? elem[0] : elem, this );
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},
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is: function( selector ) {
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@ -355,7 +361,7 @@ jQuery.extend({
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if ( array != null ) {
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i = array.length;
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// The window, strings (and functions) also have 'length'
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if ( i == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval ) {
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ret[0] = array;
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@ -383,7 +389,7 @@ jQuery.extend({
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// We have to loop this way because IE & Opera overwrite the length
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// expando of getElementsByTagName
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var i = 0, elem, pos = first.length;
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// Also, we need to make sure that the correct elements are being returned
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// (IE returns comment nodes in a '*' query)
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if ( !jQuery.support.getAll ) {
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@ -56,19 +56,19 @@ test("selector state", function() {
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expect(30);
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var test;
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test = jQuery();
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equals( test.selector, "", "Empty jQuery Selector" );
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equals( test.context, undefined, "Empty jQuery Context" );
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test = jQuery(document);
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equals( test.selector, "", "Document Selector" );
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equals( test.context, document, "Document Context" );
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test = jQuery(document.body);
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equals( test.selector, "", "Body Selector" );
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equals( test.context, document.body, "Body Context" );
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test = jQuery("#main");
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equals( test.selector, "#main", "#main Selector" );
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equals( test.context, document, "#main Context" );
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@ -76,11 +76,11 @@ test("selector state", function() {
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test = jQuery("#notfoundnono");
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equals( test.selector, "#notfoundnono", "#notfoundnono Selector" );
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equals( test.context, document, "#notfoundnono Context" );
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test = jQuery("#main", document);
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equals( test.selector, "#main", "#main Selector" );
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equals( test.context, document, "#main Context" );
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test = jQuery("#main", document.body);
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equals( test.selector, "#main", "#main Selector" );
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equals( test.context, document.body, "#main Context" );
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@ -89,7 +89,7 @@ test("selector state", function() {
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test = jQuery(test);
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equals( test.selector, "#main", "#main Selector" );
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equals( test.context, document.body, "#main Context" );
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test = jQuery(document.body).find("#main");
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equals( test.selector, "#main", "#main find Selector" );
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equals( test.context, document.body, "#main find Context" );
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@ -97,23 +97,23 @@ test("selector state", function() {
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test = jQuery("#main").filter("div");
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equals( test.selector, "#main.filter(div)", "#main filter Selector" );
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equals( test.context, document, "#main filter Context" );
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test = jQuery("#main").not("div");
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equals( test.selector, "#main.not(div)", "#main not Selector" );
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equals( test.context, document, "#main not Context" );
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test = jQuery("#main").filter("div").not("div");
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equals( test.selector, "#main.filter(div).not(div)", "#main filter, not Selector" );
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equals( test.context, document, "#main filter, not Context" );
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test = jQuery("#main").filter("div").not("div").end();
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equals( test.selector, "#main.filter(div)", "#main filter, not, end Selector" );
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equals( test.context, document, "#main filter, not, end Context" );
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test = jQuery("#main").parent("body");
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equals( test.selector, "#main.parent(body)", "#main parent Selector" );
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equals( test.context, document, "#main parent Context" );
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test = jQuery("#main").eq(0);
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equals( test.selector, "#main.slice(0,1)", "#main eq Selector" );
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equals( test.context, document, "#main eq Context" );
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@ -366,12 +366,13 @@ test("each(Function)", function() {
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ok( pass, "Execute a function, Relative" );
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});
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test("index(Object)", function() {
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expect(10);
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test("index(Object|String|undefined)", function() {
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expect(15);
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var elements = jQuery([window, document]),
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inputElements = jQuery('#radio1,#radio2,#check1,#check2');
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// Passing a node
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equals( elements.index(window), 0, "Check for index of elements" );
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equals( elements.index(document), 1, "Check for index of elements" );
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equals( inputElements.index(document.getElementById('radio1')), 0, "Check for index of elements" );
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@ -381,24 +382,33 @@ test("index(Object)", function() {
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equals( inputElements.index(window), -1, "Check for not found index" );
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equals( inputElements.index(document), -1, "Check for not found index" );
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// Passing a jQuery object
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// enabled since [5500]
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equals( elements.index( elements ), 0, "Pass in a jQuery object" );
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equals( elements.index( elements.eq(1) ), 1, "Pass in a jQuery object" );
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equals( jQuery("#form :radio").index( jQuery("#radio2") ), 1, "Pass in a jQuery object" );
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// Passing a selector or nothing
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// enabled since [6329]
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equals( jQuery('#text2').index(), 2, "Check for index amongst siblings" );
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equals( jQuery('#form').children().eq(4).index(), 4, "Check for index amongst siblings" );
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equals( jQuery('#radio2').index('#form :radio') , 1, "Check for index within a selector" );
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equals( jQuery('#radio2').index('#form :text') , -1, "Check for index not found within a selector" );
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});
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test("jQuery.merge()", function() {
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expect(6);
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var parse = jQuery.merge;
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same( parse([],[]), [], "Empty arrays" );
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same( parse([1],[2]), [1,2], "Basic" );
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same( parse([1,2],[3,4]), [1,2,3,4], "Basic" );
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same( parse([1,2],[]), [1,2], "Second empty" );
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same( parse([],[1,2]), [1,2], "First empty" );
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same( parse([],[1,2]), [1,2], "First empty" );
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// Fixed at [5998], #3641
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same( parse([-2,-1], [0,1,2]), [-2,-1,0,1,2], "Second array including a zero (falsy)");
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});
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@ -531,7 +541,7 @@ test("jQuery.makeArray", function(){
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// function, is tricky as it has length
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equals( jQuery.makeArray( function(){ return 1;} )[0](), 1, "Pass makeArray a function" );
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//window, also has length
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equals( jQuery.makeArray(window)[0], window, "Pass makeArray the window" );
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