From: Colin Snover Date: Sun, 9 Jan 2011 21:52:33 +0000 (-0600) Subject: Change the way jQuery.data works so that there is no longer a chance of collision... X-Git-Url: http://git.asbjorn.it/?a=commitdiff_plain;h=8e59a99e0ade75dec434f246f52e8b3f7393f359;hp=1d1d4fe112c49cbd704d880b27cc646f2bfe1737;p=jquery.git Change the way jQuery.data works so that there is no longer a chance of collision between user data and internal data. Fixes #6968. --- diff --git a/src/attributes.js b/src/attributes.js index fec1323..d37400a 100644 --- a/src/attributes.js +++ b/src/attributes.js @@ -133,11 +133,11 @@ jQuery.fn.extend({ } else if ( type === "undefined" || type === "boolean" ) { if ( this.className ) { // store className if set - jQuery.data( this, "__className__", this.className ); + jQuery._data( this, "__className__", this.className ); } // toggle whole className - this.className = this.className || value === false ? "" : jQuery.data( this, "__className__" ) || ""; + this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || ""; } }); }, diff --git a/src/data.js b/src/data.js index 4d1d1bd..a1abc9e 100644 --- a/src/data.js +++ b/src/data.js @@ -1,7 +1,6 @@ (function( jQuery ) { -var windowData = {}, - rbrace = /^(?:\{.*\}|\[.*\])$/; +var rbrace = /^(?:\{.*\}|\[.*\])$/; jQuery.extend({ cache: {}, @@ -23,110 +22,163 @@ jQuery.extend({ }, hasData: function( elem ) { - if ( elem.nodeType ) { - elem = jQuery.cache[ elem[jQuery.expando] ]; - } + elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ]; return !!elem && !jQuery.isEmptyObject(elem); }, - data: function( elem, name, data ) { + data: function( elem, name, data, pvt /* Internal Use Only */ ) { if ( !jQuery.acceptData( elem ) ) { return; } - elem = elem == window ? - windowData : - elem; + var internalKey = jQuery.expando, getByName = typeof name === "string", thisCache, + + // We have to handle DOM nodes and JS objects differently because IE6-7 + // can't GC object references properly across the DOM-JS boundary + isNode = elem.nodeType, + + // Only DOM nodes need the global jQuery cache; JS object data is + // attached directly to the object so GC can occur automatically + cache = isNode ? jQuery.cache : elem, - var isNode = elem.nodeType, - id = isNode ? elem[ jQuery.expando ] : null, - cache = jQuery.cache, thisCache; + // Only defining an ID for JS objects if its cache already exists allows + // the code to shortcut on the same path as a DOM node with no cache + id = isNode ? elem[ jQuery.expando ] : elem[ jQuery.expando ] && jQuery.expando; - if ( isNode && !id && typeof name === "string" && data === undefined ) { + // Avoid doing any more work than we need to when trying to get data on an + // object that has no data at all + if ( (!id || (pvt && id && !cache[ id ][ internalKey ])) && getByName && data === undefined ) { return; } - // Get the data from the object directly - if ( !isNode ) { - cache = elem; + if ( !id ) { + // Only DOM nodes need a new unique ID for each element since their data + // ends up in the global cache + if ( isNode ) { + elem[ jQuery.expando ] = id = ++jQuery.uuid; + } else { + id = jQuery.expando; + } + } - // Compute a unique ID for the element - } else if ( !id ) { - elem[ jQuery.expando ] = id = ++jQuery.uuid; + if ( !cache[ id ] ) { + cache[ id ] = {}; } - // Avoid generating a new cache unless none exists and we - // want to manipulate it. + // An object can be passed to jQuery.data instead of a key/value pair; this gets + // shallow copied over onto the existing cache if ( typeof name === "object" ) { - if ( isNode ) { + if ( pvt ) { + cache[ id ][ internalKey ] = jQuery.extend(cache[ id ][ internalKey ], name); + } else { cache[ id ] = jQuery.extend(cache[ id ], name); + } + } - } else { - jQuery.extend( cache, name ); + thisCache = cache[ id ]; + + // Internal jQuery data is stored in a separate object inside the object's data + // cache in order to avoid key collisions between internal data and user-defined + // data + if ( pvt ) { + if ( !thisCache[ internalKey ] ) { + thisCache[ internalKey ] = {}; } - } else if ( isNode && !cache[ id ] ) { - cache[ id ] = {}; + thisCache = thisCache[ internalKey ]; } - thisCache = isNode ? cache[ id ] : cache; - - // Prevent overriding the named cache with undefined values if ( data !== undefined ) { thisCache[ name ] = data; } - return typeof name === "string" ? thisCache[ name ] : thisCache; + return getByName ? thisCache[ name ] : thisCache; }, - removeData: function( elem, name ) { + removeData: function( elem, name, pvt /* Internal Use Only */ ) { if ( !jQuery.acceptData( elem ) ) { return; } - elem = elem == window ? - windowData : - elem; + var internalKey = jQuery.expando, isNode = elem.nodeType, + + // See jQuery.data for more information + cache = isNode ? jQuery.cache : elem, + + // See jQuery.data for more information + id = isNode ? elem[ jQuery.expando ] : jQuery.expando; - var isNode = elem.nodeType, - id = isNode ? elem[ jQuery.expando ] : elem, - cache = jQuery.cache, - thisCache = isNode ? cache[ id ] : id; + // If there is already no cache entry for this object, there is no + // purpose in continuing + if ( !cache[ id ] ) { + return; + } - // If we want to remove a specific section of the element's data if ( name ) { + var thisCache = pvt ? cache[ id ][ internalKey ] : cache[ id ]; + if ( thisCache ) { - // Remove the section of cache data delete thisCache[ name ]; - // If we've removed all the data, remove the element's cache - if ( isNode && jQuery.isEmptyObject(thisCache) ) { - jQuery.removeData( elem ); + // If there is no data left in the cache, we want to continue + // and let the cache object itself get destroyed + if ( !jQuery.isEmptyObject(thisCache) ) { + return; } } + } + + // See jQuery.data for more information + if ( pvt ) { + delete cache[ id ][ internalKey ]; + + // Don't destroy the parent cache unless the internal data object + // had been the only thing left in it + if ( !jQuery.isEmptyObject(cache[ id ]) ) { + return; + } + } + + var internalCache = cache[ id ][ internalKey ]; - // Otherwise, we want to remove all of the element's data + // Browsers that fail expando deletion also refuse to delete expandos on + // the window, but it will allow it on all other JS objects; other browsers + // don't care + if ( jQuery.support.deleteExpando || cache != window ) { + delete cache[ id ]; } else { - if ( isNode && jQuery.support.deleteExpando ) { - delete elem[ jQuery.expando ]; + cache[ id ] = null; + } + // We destroyed the entire user cache at once because it's faster than + // iterating through each key, but we need to continue to persist internal + // data if it existed + if ( internalCache ) { + cache[ id ] = {}; + cache[ id ][ internalKey ] = internalCache; + + // Otherwise, we need to eliminate the expando on the node to avoid + // false lookups in the cache for entries that no longer exist + } else if ( isNode ) { + // IE does not allow us to delete expando properties from nodes, + // nor does it have a removeAttribute function on Document nodes; + // we must handle all of these cases + if ( jQuery.support.deleteExpando ) { + delete elem[ jQuery.expando ]; } else if ( elem.removeAttribute ) { elem.removeAttribute( jQuery.expando ); - - // Completely remove the data cache - } else if ( isNode ) { - delete cache[ id ]; - - // Remove all fields from the object } else { - for ( var n in elem ) { - delete elem[ n ]; - } + elem[ jQuery.expando ] = null; } } }, + // For internal use only. + _data: function( elem, name, data ) { + return jQuery.data( elem, name, data, true ); + }, + // A method for determining if a DOM node can handle the data expando acceptData: function( elem ) { if ( elem.nodeName ) { diff --git a/src/effects.js b/src/effects.js index bd57ffc..b067539 100644 --- a/src/effects.js +++ b/src/effects.js @@ -27,7 +27,7 @@ jQuery.fn.extend({ // Reset the inline display of this element to learn if it is // being hidden by cascaded rules or not - if ( !jQuery.data(elem, "olddisplay") && display === "none" ) { + if ( !jQuery._data(elem, "olddisplay") && display === "none" ) { display = elem.style.display = ""; } @@ -35,7 +35,7 @@ jQuery.fn.extend({ // in a stylesheet to whatever the default browser style is // for such an element if ( display === "" && jQuery.css( elem, "display" ) === "none" ) { - jQuery.data(elem, "olddisplay", defaultDisplay(elem.nodeName)); + jQuery._data(elem, "olddisplay", defaultDisplay(elem.nodeName)); } } @@ -46,7 +46,7 @@ jQuery.fn.extend({ display = elem.style.display; if ( display === "" || display === "none" ) { - elem.style.display = jQuery.data(elem, "olddisplay") || ""; + elem.style.display = jQuery._data(elem, "olddisplay") || ""; } } @@ -62,8 +62,8 @@ jQuery.fn.extend({ for ( var i = 0, j = this.length; i < j; i++ ) { var display = jQuery.css( this[i], "display" ); - if ( display !== "none" && !jQuery.data( this[i], "olddisplay" ) ) { - jQuery.data( this[i], "olddisplay", display ); + if ( display !== "none" && !jQuery._data( this[i], "olddisplay" ) ) { + jQuery._data( this[i], "olddisplay", display ); } } diff --git a/src/event.js b/src/event.js index 675e5ff..7fa5488 100644 --- a/src/event.js +++ b/src/event.js @@ -8,7 +8,8 @@ var rnamespaces = /\.(.*)$/, fcleanup = function( nm ) { return nm.replace(rescape, "\\$&"); }, - focusCounts = { focusin: 0, focusout: 0 }; + focusCounts = { focusin: 0, focusout: 0 }, + eventKey = "events"; /* * A number of helper functions used for managing events. @@ -50,7 +51,7 @@ jQuery.event = { } // Init the element's event structure - var elemData = jQuery.data( elem ); + var elemData = jQuery._data( elem ); // If no elemData is found then we must be trying to bind to one of the // banned noData elements @@ -58,10 +59,7 @@ jQuery.event = { return; } - // Use a key less likely to result in collisions for plain JS objects. - // Fixes bug #7150. - var eventKey = elem.nodeType ? "events" : "__events__", - events = elemData[ eventKey ], + var events = elemData[ eventKey ], eventHandle = elemData.handle; if ( typeof events === "function" ) { @@ -177,8 +175,7 @@ jQuery.event = { } var ret, type, fn, j, i = 0, all, namespaces, namespace, special, eventType, handleObj, origType, - eventKey = elem.nodeType ? "events" : "__events__", - elemData = jQuery.data( elem ), + elemData = jQuery.hasData( elem ) && jQuery._data( elem ), events = elemData && elemData[ eventKey ]; if ( !elemData || !events ) { @@ -290,10 +287,10 @@ jQuery.event = { delete elemData.handle; if ( typeof elemData === "function" ) { - jQuery.removeData( elem, eventKey ); + jQuery.removeData( elem, eventKey, true ); } else if ( jQuery.isEmptyObject( elemData ) ) { - jQuery.removeData( elem ); + jQuery.removeData( elem, undefined, true ); } } }, @@ -325,9 +322,16 @@ jQuery.event = { // Only trigger if we've ever bound an event for it if ( jQuery.event.global[ type ] ) { + // XXX This code smells terrible. event.js should not be directly + // inspecting the data cache jQuery.each( jQuery.cache, function() { - if ( this.events && this.events[type] ) { - jQuery.event.trigger( event, data, this.handle.elem ); + // internalKey variable is just used to make it easier to find + // and potentially change this stuff later; currently it just + // points to jQuery.expando + var internalKey = jQuery.expando, + internalCache = this[ internalKey ]; + if ( internalCache && internalCache.events && internalCache.events[type] ) { + jQuery.event.trigger( event, data, internalCache.handle.elem ); } }); } @@ -353,8 +357,8 @@ jQuery.event = { // Trigger the event, it is assumed that "handle" is a function var handle = elem.nodeType ? - jQuery.data( elem, "handle" ) : - (jQuery.data( elem, "__events__" ) || {}).handle; + jQuery._data( elem, "handle" ) : + (jQuery._data( elem, eventKey ) || {}).handle; if ( handle ) { handle.apply( elem, data ); @@ -432,7 +436,7 @@ jQuery.event = { event.namespace = event.namespace || namespace_sort.join("."); - events = jQuery.data(this, this.nodeType ? "events" : "__events__"); + events = jQuery._data(this, eventKey); if ( typeof events === "function" ) { events = events.events; @@ -787,12 +791,12 @@ if ( !jQuery.support.changeBubbles ) { return; } - data = jQuery.data( elem, "_change_data" ); + data = jQuery._data( elem, "_change_data" ); val = getVal(elem); // the current data will be also retrieved by beforeactivate if ( e.type !== "focusout" || elem.type !== "radio" ) { - jQuery.data( elem, "_change_data", val ); + jQuery._data( elem, "_change_data", val ); } if ( data === undefined || val === data ) { @@ -837,7 +841,7 @@ if ( !jQuery.support.changeBubbles ) { // information beforeactivate: function( e ) { var elem = e.target; - jQuery.data( elem, "_change_data", getVal(elem) ); + jQuery._data( elem, "_change_data", getVal(elem) ); } }, @@ -986,8 +990,8 @@ jQuery.fn.extend({ return this.click( jQuery.proxy( fn, function( event ) { // Figure out which function to execute - var lastToggle = ( jQuery.data( this, "lastToggle" + fn.guid ) || 0 ) % i; - jQuery.data( this, "lastToggle" + fn.guid, lastToggle + 1 ); + var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i; + jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 ); // Make sure that clicks stop event.preventDefault(); @@ -1075,7 +1079,7 @@ function liveHandler( event ) { var stop, maxLevel, related, match, handleObj, elem, j, i, l, data, close, namespace, ret, elems = [], selectors = [], - events = jQuery.data( this, this.nodeType ? "events" : "__events__" ); + events = jQuery._data( this, eventKey ); if ( typeof events === "function" ) { events = events.events; diff --git a/src/manipulation.js b/src/manipulation.js index 96caa02..657aef7 100644 --- a/src/manipulation.js +++ b/src/manipulation.js @@ -381,17 +381,24 @@ function cloneCopyEvent(orig, ret) { throw "Cloned data mismatch"; } - var oldData = jQuery.data( orig[nodeIndex] ), - curData = jQuery.data( this, oldData ), - events = oldData && oldData.events; - - if ( events ) { - delete curData.handle; - curData.events = {}; - - for ( var type in events ) { - for ( var i = 0, l = events[ type ].length; i < l; i++ ) { - jQuery.event.add( this, type, events[ type ][ i ], events[ type ][ i ].data ); + var internalKey = jQuery.expando, + oldData = jQuery.data( orig[nodeIndex] ), + curData = jQuery.data( this, oldData ); + + // Switch to use the internal data object, if it exists, for the next + // stage of data copying + if ( (oldData = oldData[ internalKey ]) ) { + var events = oldData.events; + curData = curData[ internalKey ] = jQuery.extend({}, oldData); + + if ( events ) { + delete curData.handle; + curData.events = {}; + + for ( var type in events ) { + for ( var i = 0, l = events[ type ].length; i < l; i++ ) { + jQuery.event.add( this, type, events[ type ][ i ], events[ type ][ i ].data ); + } } } } @@ -594,8 +601,7 @@ jQuery.extend({ }, cleanData: function( elems ) { - var data, id, cache = jQuery.cache, - special = jQuery.event.special, + var data, id, cache = jQuery.cache, internalKey = jQuery.expando, special = jQuery.event.special, deleteExpando = jQuery.support.deleteExpando; for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) { @@ -606,13 +612,14 @@ jQuery.extend({ id = elem[ jQuery.expando ]; if ( id ) { - data = cache[ id ]; + data = cache[ id ] && cache[ id ][ internalKey ]; if ( data && data.events ) { for ( var type in data.events ) { if ( special[ type ] ) { jQuery.event.remove( elem, type ); + // This is a shortcut to avoid jQuery.event.remove's overhead } else { jQuery.removeEvent( elem, type, data.handle ); } diff --git a/src/queue.js b/src/queue.js index 735b0e1..5fb04df 100644 --- a/src/queue.js +++ b/src/queue.js @@ -7,7 +7,7 @@ jQuery.extend({ } type = (type || "fx") + "queue"; - var q = jQuery.data( elem, type ); + var q = jQuery._data( elem, type ); // Speed up dequeue by getting out quickly if this is just a lookup if ( !data ) { @@ -15,7 +15,7 @@ jQuery.extend({ } if ( !q || jQuery.isArray(data) ) { - q = jQuery.data( elem, type, jQuery.makeArray(data) ); + q = jQuery._data( elem, type, jQuery.makeArray(data) ); } else { q.push( data ); diff --git a/test/unit/attributes.js b/test/unit/attributes.js index a1ab581..04f1684 100644 --- a/test/unit/attributes.js +++ b/test/unit/attributes.js @@ -703,12 +703,12 @@ var testToggleClass = function(valueObj) { // toggleClass storage e.toggleClass(true); - ok( e.get(0).className === "", "Assert class is empty (data was empty)" ); + ok( e[0].className === "", "Assert class is empty (data was empty)" ); e.addClass("testD testE"); ok( e.is(".testD.testE"), "Assert class present" ); e.toggleClass(); ok( !e.is(".testD.testE"), "Assert class not present" ); - ok( e.data('__className__') === 'testD testE', "Assert data was stored" ); + ok( jQuery._data(e[0], '__className__') === 'testD testE', "Assert data was stored" ); e.toggleClass(); ok( e.is(".testD.testE"), "Assert class present (restored from data)" ); e.toggleClass(false); @@ -720,11 +720,9 @@ var testToggleClass = function(valueObj) { e.toggleClass(); ok( e.is(".testD.testE"), "Assert class present (restored from data)" ); - - // Cleanup e.removeClass("testD"); - e.removeData('__className__'); + jQuery.removeData(e[0], '__className__', true); }; test("toggleClass(String|boolean|undefined[, boolean])", function() { @@ -785,7 +783,7 @@ test("toggleClass(Fucntion[, boolean]) with incoming value", function() { // Cleanup e.removeClass("test"); - e.removeData('__className__'); + jQuery.removeData(e[0], '__className__', true); }); test("addClass, removeClass, hasClass", function() { diff --git a/test/unit/data.js b/test/unit/data.js index 310cd6b..28e19a3 100644 --- a/test/unit/data.js +++ b/test/unit/data.js @@ -1,96 +1,177 @@ -module("data"); +module("data", { teardown: moduleTeardown }); test("expando", function(){ - expect(6); + expect(1); equals("expando" in jQuery, true, "jQuery is exposing the expando"); +}); - var obj = {}; - equals( jQuery.data(obj), obj, "jQuery.data(obj) returns the object"); - equals( jQuery.expando in obj, false, "jQuery.data(obj) did not add an expando to the object" ); +function dataTests (elem) { + // expect(32) - obj = {}; - jQuery.data(obj, 'test'); - equals( jQuery.expando in obj, false, "jQuery.data(obj,key) did not add an expando to the object" ); + function getCacheLength() { + var cacheLength = 0; + for (var i in jQuery.cache) { + ++cacheLength; + } - obj = {}; - jQuery.data(obj, "foo", "bar"); - equals( jQuery.expando in obj, false, "jQuery.data(obj,key,value) did not add an expando to the object" ); - equals( obj.foo, "bar", "jQuery.data(obj,key,value) sets fields directly on the object." ); -}); + return cacheLength; + } -test("jQuery.acceptData", function() { - expect(7); + equals( jQuery.data(elem, "foo"), undefined, "No data exists initially" ); + strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees no data exists initially" ); - ok( jQuery.acceptData( document ), "document" ); - ok( jQuery.acceptData( document.documentElement ), "documentElement" ); - ok( jQuery.acceptData( {} ), "object" ); - ok( !jQuery.acceptData( document.createElement("embed") ), "embed" ); - ok( !jQuery.acceptData( document.createElement("applet") ), "applet" ); + var dataObj = jQuery.data(elem); + equals( typeof dataObj, "object", "Calling data with no args gives us a data object reference" ); + strictEqual( jQuery.data(elem), dataObj, "Calling jQuery.data returns the same data object when called multiple times" ); - var flash = document.createElement("object"); - flash.setAttribute("classid", "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"); - ok( jQuery.acceptData( flash ), "flash" ); + strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees no data exists even when an empty data obj exists" ); - var applet = document.createElement("object"); - applet.setAttribute("classid", "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"); - ok( !jQuery.acceptData( applet ), "applet" ); -}); + dataObj.foo = "bar"; + equals( jQuery.data(elem, "foo"), "bar", "Data is readable by jQuery.data when set directly on a returned data object" ); -test("jQuery.data", function() { - expect(15); - var div = document.createElement("div"); + strictEqual( jQuery.hasData(elem), true, "jQuery.hasData agrees data exists when data exists" ); - ok( jQuery.data(div, "test") === undefined, "Check for no data exists" ); + jQuery.data(elem, "foo", "baz"); + equals( jQuery.data(elem, "foo"), "baz", "Data can be changed by jQuery.data" ); + equals( dataObj.foo, "baz", "Changes made through jQuery.data propagate to referenced data object" ); - jQuery.data(div, "test", "success"); - equals( jQuery.data(div, "test"), "success", "Check for added data" ); + jQuery.data(elem, "foo", undefined); + equals( jQuery.data(elem, "foo"), "baz", "Data is not unset by passing undefined to jQuery.data" ); - ok( jQuery.data(div, "notexist") === undefined, "Check for no data exists" ); + jQuery.data(elem, "foo", null); + strictEqual( jQuery.data(elem, "foo"), null, "Setting null using jQuery.data works OK" ); - var data = jQuery.data(div); - same( data, { "test": "success" }, "Return complete data set" ); + jQuery.data(elem, "foo", "foo1"); - jQuery.data(div, "test", "overwritten"); - equals( jQuery.data(div, "test"), "overwritten", "Check for overwritten data" ); + jQuery.data(elem, { "bar" : "baz", "boom" : "bloz" }); + strictEqual( jQuery.data(elem, "foo"), "foo1", "Passing an object extends the data object instead of replacing it" ); + equals( jQuery.data(elem, "boom"), "bloz", "Extending the data object works" ); - jQuery.data(div, "test", undefined); - equals( jQuery.data(div, "test"), "overwritten", "Check that data wasn't removed"); + jQuery._data(elem, "foo", "foo2"); + equals( jQuery._data(elem, "foo"), "foo2", "Setting internal data works" ); + equals( jQuery.data(elem, "foo"), "foo1", "Setting internal data does not override user data" ); - jQuery.data(div, "test", null); - ok( jQuery.data(div, "test") === null, "Check for null data"); + var internalDataObj = jQuery.data(elem, jQuery.expando); + strictEqual( jQuery._data(elem), internalDataObj, "Internal data object is accessible via jQuery.expando property" ); + notStrictEqual( dataObj, internalDataObj, "Internal data object is not the same as user data object" ); - jQuery.data(div, "test3", "orig"); - jQuery.data(div, { "test": "in", "test2": "in2" }); - equals( jQuery.data(div, "test"), "in", "Verify setting an object in data" ); - equals( jQuery.data(div, "test2"), "in2", "Verify setting an object in data" ); - equals( jQuery.data(div, "test3"), "orig", "Verify original not overwritten" ); + strictEqual( elem.boom, undefined, "Data is never stored directly on the object" ); - var obj = {}; - jQuery.data( obj, "prop", true ); + jQuery.removeData(elem, "foo"); + strictEqual( jQuery.data(elem, "foo"), undefined, "jQuery.removeData removes single properties" ); - ok( obj.prop, "Data is being stored on the object" ); - equals( jQuery.data( obj, "prop" ), true, "Make sure the right value is retrieved" ); + jQuery.removeData(elem); + strictEqual( jQuery.data(elem, jQuery.expando), internalDataObj, "jQuery.removeData does not remove internal data if it exists" ); - jQuery.data( window, "BAD", true ); - ok( !window[ jQuery.expando ], "Make sure there is no expando on the window object." ); - ok( !window.BAD, "And make sure that the property wasn't set directly on the window." ); - ok( jQuery.data( window, "BAD" ), "Make sure that the value was set." ); -}); + jQuery.removeData(elem, undefined, true); -test("jQuery.hasData", function() { - expect(6); + strictEqual( jQuery.data(elem, jQuery.expando), undefined, "jQuery.removeData on internal data works" ); + strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees all data has been removed from object" ); + + jQuery._data(elem, "foo", "foo2"); + strictEqual( jQuery.hasData(elem), true, "jQuery.hasData shows data exists even if it is only internal data" ); + + jQuery.data(elem, "foo", "foo1"); + equals( jQuery._data(elem, "foo"), "foo2", "Setting user data does not override internal data" ); + + jQuery.removeData(elem, undefined, true); + equals( jQuery.data(elem, "foo"), "foo1", "jQuery.removeData for internal data does not remove user data" ); + + if (elem.nodeType) { + var oldCacheLength = getCacheLength(); + jQuery.removeData(elem, "foo"); - function testData(obj) { - equals( jQuery.hasData(obj), false, "No data exists" ); - jQuery.data( obj, "foo", "bar" ); - equals( jQuery.hasData(obj), true, "Data exists" ); - jQuery.removeData( obj, "foo" ); - equals( jQuery.hasData(obj), false, "Data was removed" ); + equals( getCacheLength(), oldCacheLength - 1, "Removing the last item in the data object destroys it" ); } + else { + jQuery.removeData(elem, "foo"); + var expected, actual; + + if (jQuery.support.deleteExpando) { + expected = false; + actual = jQuery.expando in elem; + } + else { + expected = null; + actual = elem[ jQuery.expando ]; + } + + equals( actual, expected, "Removing the last item in the data object destroys it" ); + } + + jQuery.data(elem, "foo", "foo1"); + jQuery._data(elem, "foo", "foo2"); + + equals( jQuery.data(elem, "foo"), "foo1", "(sanity check) Ensure data is set in user data object" ); + equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" ); + + jQuery.removeData(elem, "foo", true); + + strictEqual( jQuery.data(elem, jQuery.expando), undefined, "Removing the last item in internal data destroys the internal data object" ); + + jQuery._data(elem, "foo", "foo2"); + equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" ); - testData(document.createElement('div')); - testData({}); + jQuery.removeData(elem, "foo"); + equals( jQuery._data(elem, "foo"), "foo2", "(sanity check) jQuery.removeData for user data does not remove internal data" ); + + if (elem.nodeType) { + oldCacheLength = getCacheLength(); + jQuery.removeData(elem, "foo", true); + equals( getCacheLength(), oldCacheLength - 1, "Removing the last item in the internal data object also destroys the user data object when it is empty" ); + } + else { + jQuery.removeData(elem, "foo", true); + + if (jQuery.support.deleteExpando) { + expected = false; + actual = jQuery.expando in elem; + } + else { + expected = null; + actual = elem[ jQuery.expando ]; + } + + equals( actual, expected, "Removing the last item in the internal data object also destroys the user data object when it is empty" ); + } +} + +test("jQuery.data", function() { + expect(128); + + var div = document.createElement("div"); + + dataTests(div); + dataTests({}); + + // remove bound handlers from window object to stop potential false positives caused by fix for #5280 in + // transports/xhr.js + jQuery(window).unbind("unload"); + + dataTests(window); + dataTests(document); + + // clean up unattached element + jQuery(div).remove(); +}); + +test("jQuery.acceptData", function() { + expect(7); + + ok( jQuery.acceptData( document ), "document" ); + ok( jQuery.acceptData( document.documentElement ), "documentElement" ); + ok( jQuery.acceptData( {} ), "object" ); + ok( !jQuery.acceptData( document.createElement("embed") ), "embed" ); + ok( !jQuery.acceptData( document.createElement("applet") ), "applet" ); + + var flash = document.createElement("object"); + flash.setAttribute("classid", "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"); + ok( jQuery.acceptData( flash ), "flash" ); + + var applet = document.createElement("object"); + applet.setAttribute("classid", "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"); + ok( !jQuery.acceptData( applet ), "applet" ); }); test(".data()", function() { @@ -98,7 +179,6 @@ test(".data()", function() { var div = jQuery("#foo"); strictEqual( div.data("foo"), undefined, "Make sure that missing result is undefined" ); - div.data("test", "success"); same( div.data(), {test: "success"}, "data() get the entire data object" ); strictEqual( div.data("foo"), undefined, "Make sure that missing result is still undefined" ); @@ -107,7 +187,7 @@ test(".data()", function() { equals( nodiv.data(), null, "data() on empty set returns null" ); var obj = { foo: "bar" }; - equals( jQuery(obj).data(), obj, "Retrieve data object from a wrapped JS object (#7524)" ); + deepEqual( jQuery(obj).data(), {}, "Retrieve data object from a wrapped JS object (#7524)" ); }) test(".data(String) and .data(String, Object)", function() { @@ -194,11 +274,14 @@ test(".data(String) and .data(String, Object)", function() { equals( $elem.data('null',null).data('null'), null, "null's are preserved"); equals( $elem.data('emptyString','').data('emptyString'), '', "Empty strings are preserved"); equals( $elem.data('false',false).data('false'), false, "false's are preserved"); - equals( $elem.data('exists'), true, "Existing data is returned" ); + equals( $elem.data('exists'), undefined, "Existing data is not returned" ); // Clean up $elem.removeData(); - ok( jQuery.isEmptyObject( $elem[0] ), "removeData clears the object" ); + deepEqual( $elem[0], {exists:true}, "removeData does not clear the object" ); + + // manually clean up detached elements + parent.remove(); }); test("data-* attributes", function() { @@ -323,13 +406,17 @@ test(".data(Object)", function() { var obj = {test:"unset"}, jqobj = jQuery(obj); + jqobj.data("test", "unset"); jqobj.data({ "test": "in", "test2": "in2" }); - equals( obj.test, "in", "Verify setting an object on an object extends the object" ); - equals( obj.test2, "in2", "Verify setting an object on an object extends the object" ); + equals( jQuery.data(obj).test, "in", "Verify setting an object on an object extends the data object" ); + equals( obj.test2, undefined, "Verify setting an object on an object does not extend the object" ); + + // manually clean up detached elements + div.remove(); }); test("jQuery.removeData", function() { - expect(7); + expect(6); var div = jQuery("#foo")[0]; jQuery.data(div, "test", "testing"); jQuery.removeData(div, "test"); @@ -342,10 +429,9 @@ test("jQuery.removeData", function() { var obj = {}; jQuery.data(obj, "test", "testing"); - equals( obj.test, "testing", "verify data on plain object"); + equals( jQuery(obj).data("test"), "testing", "verify data on plain object"); jQuery.removeData(obj, "test"); equals( jQuery.data(obj, "test"), undefined, "Check removal of data on plain object" ); - equals( obj.test, undefined, "Check removal of data directly from plain object" ); jQuery.data( window, "BAD", true ); jQuery.removeData( window, "BAD" ); @@ -371,4 +457,4 @@ test(".removeData()", function() { div.removeData("test.foo"); equals( div.data("test.foo"), undefined, "Make sure data is intact" ); -}); +}); \ No newline at end of file diff --git a/test/unit/effects.js b/test/unit/effects.js index b7b60ab..cf9d131 100644 --- a/test/unit/effects.js +++ b/test/unit/effects.js @@ -895,7 +895,7 @@ test("hide hidden elements (bug #7141)", function() { var div = jQuery("
").appendTo("#main"); equals( div.css("display"), "none", "Element is hidden by default" ); div.hide(); - ok( !div.data("olddisplay"), "olddisplay is undefined after hiding an already-hidden element" ); + ok( !jQuery._data(div, "olddisplay"), "olddisplay is undefined after hiding an already-hidden element" ); div.show(); equals( div.css("display"), "block", "Show a double-hidden element" ); @@ -910,7 +910,7 @@ test("hide hidden elements, with animation (bug #7141)", function() { var div = jQuery("
").appendTo("#main"); equals( div.css("display"), "none", "Element is hidden by default" ); div.hide(1, function () { - ok( !div.data("olddisplay"), "olddisplay is undefined after hiding an already-hidden element" ); + ok( !jQuery._data(div, "olddisplay"), "olddisplay is undefined after hiding an already-hidden element" ); div.show(1, function () { equals( div.css("display"), "block", "Show a double-hidden element" ); start(); diff --git a/test/unit/event.js b/test/unit/event.js index b4672a8..cae1a83 100644 --- a/test/unit/event.js +++ b/test/unit/event.js @@ -28,7 +28,7 @@ test("bind(), with data", function() { }; jQuery("#firstp").bind("click", {foo: "bar"}, handler).click().unbind("click", handler); - ok( !jQuery.data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." ); + ok( !jQuery._data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." ); }); test("click(), with data", function() { @@ -39,7 +39,7 @@ test("click(), with data", function() { }; jQuery("#firstp").click({foo: "bar"}, handler).click().unbind("click", handler); - ok( !jQuery.data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." ); + ok( !jQuery._data(jQuery("#firstp")[0], "events"), "Event handler unbound when using data." ); }); test("bind(), with data, trigger with data", function() { @@ -505,7 +505,7 @@ test("bind(), with different this object", function() { .bind("click", jQuery.proxy(handler1, thisObject)).click().unbind("click", handler1) .bind("click", data, jQuery.proxy(handler2, thisObject)).click().unbind("click", handler2); - ok( !jQuery.data(jQuery("#firstp")[0], "events"), "Event handler unbound when using different this object and data." ); + ok( !jQuery._data(jQuery("#firstp")[0], "events"), "Event handler unbound when using different this object and data." ); }); test("bind(name, false), unbind(name, false)", function() { @@ -547,7 +547,7 @@ test("bind()/trigger()/unbind() on plain object", function() { } }); - var events = jQuery(obj).data("__events__"); + var events = jQuery._data(obj, "events"); ok( events, "Object has events bound." ); equals( obj.events, undefined, "Events object on plain objects is not events" ); equals( typeof events, "function", "'events' expando is a function on plain objects." ); @@ -567,7 +567,9 @@ test("bind()/trigger()/unbind() on plain object", function() { // Make sure it doesn't complain when no events are found jQuery(obj).unbind("test"); - equals( obj.__events__, undefined, "Make sure events object is removed" ); + equals( obj && obj[ jQuery.expando ] && + obj[ jQuery.expando ][ jQuery.expando ] && + obj[ jQuery.expando ][ jQuery.expando ].events, undefined, "Make sure events object is removed" ); }); test("unbind(type)", function() { @@ -947,7 +949,7 @@ test("toggle(Function, Function, ...)", function() { equals( turn, 2, "Trying toggle with 3 functions, attempt 5 yields 2"); $div.unbind('click',fns[0]); - var data = jQuery.data( $div[0], 'events' ); + var data = jQuery._data( $div[0], 'events' ); ok( !data, "Unbinding one function from toggle unbinds them all"); // Test Multi-Toggles @@ -1065,7 +1067,7 @@ test(".live()/.die()", function() { equals( clicked, 2, "live with a context" ); // Make sure the event is actually stored on the context - ok( jQuery.data(container, "events").live, "live with a context" ); + ok( jQuery._data(container, "events").live, "live with a context" ); // Test unbinding with a different context jQuery("#foo", container).die("click"); @@ -1578,7 +1580,7 @@ test(".delegate()/.undelegate()", function() { equals( clicked, 2, "delegate with a context" ); // Make sure the event is actually stored on the context - ok( jQuery.data(container, "events").live, "delegate with a context" ); + ok( jQuery._data(container, "events").live, "delegate with a context" ); // Test unbinding with a different context jQuery("#main").undelegate("#foo", "click"); @@ -1907,7 +1909,7 @@ test("window resize", function() { ok( true, "Resize event fired." ); }).resize().unbind("resize"); - ok( !jQuery(window).data("__events__"), "Make sure all the events are gone." ); + ok( !jQuery._data(window, "__events__"), "Make sure all the events are gone." ); }); test("focusin bubbles", function() {