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Create private methods for processing data/removeData requests. Fixes… 
… #12519, Closes gh-976
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@carldanley @rwaldron
carldanley authored and rwaldron committed Oct 16, 2012
1 parent 2e3ca6c commit 08e134548f70f24cb73f8e1b7a6da39b1995d0ac
Showing with 177 additions and 166 deletions.
  1. +164 −152 src/data.js
  2. +1 −1 src/effects.js
  3. +1 −2 src/event.js
  4. +2 −2 src/queue.js
  5. +9 −9 test/unit/data.js
316 src/data.js
View file
@@ -1,209 +1,221 @@
var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
rmultiDash = /([A-Z])/g;

function internalData( elem, name, data, pvt /* Internal Use Only */ ){
if ( !jQuery.acceptData( elem ) ) {
return;
}

jQuery.extend({
cache: {},
var thisCache, ret,
internalKey = jQuery.expando,
getByName = typeof name === "string",

deletedIds: [],
// 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,

// Remove at next major release (1.9/2.0)
uuid: 0,
// 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,

// Unique for each copy of jQuery on the page
// Non-digits removed to match rinlinejQuery
expando: "jQuery" + ( jQuery.fn.jquery + Math.random() ).replace( /\D/g, "" ),
// 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[ internalKey ] : elem[ internalKey ] && internalKey;

// The following elements throw uncatchable exceptions if you
// attempt to add expando properties to them.
noData: {
"embed": true,
// Ban all objects except for Flash (which handle expandos)
"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
"applet": true
},

hasData: function( elem ) {
elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
return !!elem && !isEmptyDataObject( elem );
},
// 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 || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
return;
}

data: function( elem, name, data, pvt /* Internal Use Only */ ) {
if ( !jQuery.acceptData( elem ) ) {
return;
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[ internalKey ] = id = jQuery.deletedIds.pop() || jQuery.guid++;
} else {
id = internalKey;
}
}

var thisCache, ret,
internalKey = jQuery.expando,
getByName = typeof name === "string",

// 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,

// 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[ internalKey ] : elem[ internalKey ] && internalKey;
if ( !cache[ id ] ) {
cache[ id ] = {};

// 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 || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
return;
// Avoids exposing jQuery metadata on plain JS objects when the object
// is serialized using JSON.stringify
if ( !isNode ) {
cache[ id ].toJSON = jQuery.noop;
}
}

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[ internalKey ] = id = jQuery.deletedIds.pop() || jQuery.guid++;
} else {
id = internalKey;
}
// 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" || typeof name === "function" ) {
if ( pvt ) {
cache[ id ] = jQuery.extend( cache[ id ], name );
} else {
cache[ id ].data = jQuery.extend( cache[ id ].data, name );
}
}

if ( !cache[ id ] ) {
cache[ id ] = {};
thisCache = cache[ id ];

// Avoids exposing jQuery metadata on plain JS objects when the object
// is serialized using JSON.stringify
if ( !isNode ) {
cache[ id ].toJSON = jQuery.noop;
}
// jQuery data() is stored in a separate object inside the object's internal data
// cache in order to avoid key collisions between internal data and user-defined
// data.
if ( !pvt ) {
if ( !thisCache.data ) {
thisCache.data = {};
}

// 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" || typeof name === "function" ) {
if ( pvt ) {
cache[ id ] = jQuery.extend( cache[ id ], name );
} else {
cache[ id ].data = jQuery.extend( cache[ id ].data, name );
}
}

thisCache = cache[ id ];

// jQuery data() is stored in a separate object inside the object's internal data
// cache in order to avoid key collisions between internal data and user-defined
// data.
if ( !pvt ) {
if ( !thisCache.data ) {
thisCache.data = {};
}

thisCache = thisCache.data;
}
thisCache = thisCache.data;
}

if ( data !== undefined ) {
thisCache[ jQuery.camelCase( name ) ] = data;
}
if ( data !== undefined ) {
thisCache[ jQuery.camelCase( name ) ] = data;
}

// Check for both converted-to-camel and non-converted data property names
// If a data property was specified
if ( getByName ) {
// Check for both converted-to-camel and non-converted data property names
// If a data property was specified
if ( getByName ) {

// First Try to find as-is property data
ret = thisCache[ name ];
// First Try to find as-is property data
ret = thisCache[ name ];

// Test for null|undefined property data
if ( ret == null ) {
// Test for null|undefined property data
if ( ret == null ) {

// Try to find the camelCased property
ret = thisCache[ jQuery.camelCase( name ) ];
}
} else {
ret = thisCache;
// Try to find the camelCased property
ret = thisCache[ jQuery.camelCase( name ) ];
}
} else {
ret = thisCache;
}

return ret;
},
return ret;
}

removeData: function( elem, name, pvt /* Internal Use Only */ ) {
if ( !jQuery.acceptData( elem ) ) {
return;
}
function internalRemoveData( elem, name, pvt /* For internal use only */ ){
if ( !jQuery.acceptData( elem ) ) {
return;
}

var thisCache, i, l,
var thisCache, i, l,

isNode = elem.nodeType,
isNode = elem.nodeType,

// See jQuery.data for more information
cache = isNode ? jQuery.cache : elem,
id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
// See jQuery.data for more information
cache = isNode ? jQuery.cache : elem,
id = isNode ? elem[ jQuery.expando ] : jQuery.expando;

// If there is already no cache entry for this object, there is no
// purpose in continuing
if ( !cache[ id ] ) {
return;
}
// If there is already no cache entry for this object, there is no
// purpose in continuing
if ( !cache[ id ] ) {
return;
}

if ( name ) {
if ( name ) {

thisCache = pvt ? cache[ id ] : cache[ id ].data;
thisCache = pvt ? cache[ id ] : cache[ id ].data;

if ( thisCache ) {
if ( thisCache ) {

// Support array or space separated string names for data keys
if ( !jQuery.isArray( name ) ) {
// Support array or space separated string names for data keys
if ( !jQuery.isArray( name ) ) {

// try the string as a key before any manipulation
// try the string as a key before any manipulation
if ( name in thisCache ) {
name = [ name ];
} else {

// split the camel cased version by spaces unless a key with the spaces exists
name = jQuery.camelCase( name );
if ( name in thisCache ) {
name = [ name ];
} else {

// split the camel cased version by spaces unless a key with the spaces exists
name = jQuery.camelCase( name );
if ( name in thisCache ) {
name = [ name ];
} else {
name = name.split(" ");
}
name = name.split(" ");
}
}
}

for ( i = 0, l = name.length; i < l; i++ ) {
delete thisCache[ name[i] ];
}
for ( i = 0, l = name.length; i < l; i++ ) {
delete thisCache[ name[i] ];
}

// If there is no data left in the cache, we want to continue
// and let the cache object itself get destroyed
if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
return;
}
// If there is no data left in the cache, we want to continue
// and let the cache object itself get destroyed
if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
return;
}
}
}

// See jQuery.data for more information
if ( !pvt ) {
delete cache[ id ].data;
// See jQuery.data for more information
if ( !pvt ) {
delete cache[ id ].data;

// Don't destroy the parent cache unless the internal data object
// had been the only thing left in it
if ( !isEmptyDataObject( cache[ id ] ) ) {
return;
}
// Don't destroy the parent cache unless the internal data object
// had been the only thing left in it
if ( !isEmptyDataObject( cache[ id ] ) ) {
return;
}
}

// Destroy the cache
if ( isNode ) {
jQuery.cleanData( [ elem ], true );
// Destroy the cache
if ( isNode ) {
jQuery.cleanData( [ elem ], true );

// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
} else if ( jQuery.support.deleteExpando || cache != cache.window ) {
delete cache[ id ];
// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
} else if ( jQuery.support.deleteExpando || cache != cache.window ) {
delete cache[ id ];

// When all else fails, null
} else {
cache[ id ] = null;
}
// When all else fails, null
} else {
cache[ id ] = null;
}
}

jQuery.extend({
cache: {},

deletedIds: [],

// Remove at next major release (1.9/2.0)
uuid: 0,

// Unique for each copy of jQuery on the page
// Non-digits removed to match rinlinejQuery
expando: "jQuery" + ( jQuery.fn.jquery + Math.random() ).replace( /\D/g, "" ),

// The following elements throw uncatchable exceptions if you
// attempt to add expando properties to them.
noData: {
"embed": true,
// Ban all objects except for Flash (which handle expandos)
"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
"applet": true
},

hasData: function( elem ) {
elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
return !!elem && !isEmptyDataObject( elem );
},

data: function( elem, name, data ) {
return internalData( elem, name, data, false );
},

removeData: function( elem, name ) {
return internalRemoveData( elem, name, false );
},

// For internal use only.
_data: function( elem, name, data ) {
return jQuery.data( elem, name, data, true );
return internalData( elem, name, data, true );
},

_removeData: function( elem, name ) {
return internalRemoveData( elem, name, true );
},

// A method for determining if a DOM node can handle the data expando
2 src/effects.js
View file
@@ -327,7 +327,7 @@ function defaultPrefilter( elem, props, opts ) {
}
anim.done(function() {
var prop;
jQuery.removeData( elem, "fxshow", true );
jQuery._removeData( elem, "fxshow" );
for ( prop in orig ) {
jQuery.style( elem, prop, orig[ prop ] );
}
3 src/event.js
View file
@@ -15,7 +15,6 @@ var rformElems = /^(?:textarea|input|select)$/i,
jQuery.event = {

add: function( elem, types, handler, data, selector ) {

var elemData, eventHandle, events,
t, tns, type, namespaces, handleObj,
handleObjIn, handlers, special;
@@ -196,7 +195,7 @@ jQuery.event = {

// removeData also checks for emptiness and clears the expando if empty
// so use it instead of delete
jQuery.removeData( elem, "events", true );
jQuery._removeData( elem, "events" );
}
},

2 comments on commit 08e1345

@Krinkle

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@Krinkle Krinkle replied Oct 16, 2012

eh... guys, we're failing big time in all browsers:
@rwaldron

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@rwaldron rwaldron replied Oct 16, 2012

Thanks @Krinkle :)
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