library-mirrors/jquery
1
0
Fork 0
mirror of https://github.com/jquery/jquery.git synced 2024-11-23 02:54:22 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

No ticket: keep jquery.min.js.gz under 32K

Browse Source
This commit is contained in:
Richard Gibson 2013-02-12 00:45:35 -05:00
parent 03ab9b9f90
commit 941d2e055b
1 changed files with 25 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
src/data.js
View File

@ -6,9 +6,8 @@ function internalData( elem, name, data, pvt /* Internal Use Only */ ){
return;
}
var thisCache, ret,
var ret, thisCache,
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
@ -24,7 +23,7 @@ function internalData( elem, name, data, pvt /* Internal Use Only */ ){
// 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 ) {
if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && data === undefined && typeof name === "string" ) {
return;
}
@ -32,20 +31,16 @@ function internalData( elem, name, data, pvt /* Internal Use Only */ ){
// 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 = core_deletedIds.pop() || jQuery.guid++;
id = elem[ internalKey ] = core_deletedIds.pop() || jQuery.guid++;
} else {
id = internalKey;
}
}
if ( !cache[ id ] ) {
cache[ id ] = {};
// Avoids exposing jQuery metadata on plain JS objects when the object
// Avoid exposing jQuery metadata on plain JS objects when the object
// is serialized using JSON.stringify
if ( !isNode ) {
cache[ id ].toJSON = jQuery.noop;
}
cache[ id ] = isNode ? {} : { toJSON: jQuery.noop };
}
// An object can be passed to jQuery.data instead of a key/value pair; this gets
@ -77,7 +72,7 @@ function internalData( elem, name, data, pvt /* Internal Use Only */ ){
// Check for both converted-to-camel and non-converted data property names
// If a data property was specified
if ( getByName ) {
if ( typeof name === "string" ) {
// First Try to find as-is property data
ret = thisCache[ name ];
@ -100,7 +95,7 @@ function internalRemoveData( elem, name, pvt ) {
return;
}
var i, l, thisCache,
var thisCache, i,
isNode = elem.nodeType,
// See jQuery.data for more information
@ -145,13 +140,14 @@ function internalRemoveData( elem, name, pvt ) {
name = name.concat( jQuery.map( name, jQuery.camelCase ) );
}
for ( i = 0, l = name.length; i < l; i++ ) {
i = name.length;
while ( 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 ) ) {
if ( pvt ? !isEmptyDataObject(thisCache) : !jQuery.isEmptyObject(thisCache) ) {
return;
}
}
@ -192,10 +188,10 @@ jQuery.extend({
// The following elements throw uncatchable exceptions if you
// attempt to add expando properties to them.
noData: {
"applet": true,
"embed": true,
// Ban all objects except for Flash (which handle expandos)
"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
"applet": true
"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
},
hasData: function( elem ) {
@ -237,9 +233,12 @@ jQuery.extend({
jQuery.fn.extend({
data: function( key, value ) {
var attrs, name,
elem = this[0],
data = null,
i = 0,
data = null;
elem = this[0];
// Special expections of .data basically thwart jQuery.access,
// so implement the relevant behavior ourselves
// Gets all values
if ( key === undefined ) {
@ -251,7 +250,7 @@ jQuery.fn.extend({
for ( ; i < attrs.length; i++ ) {
name = attrs[i].name;
if ( !name.indexOf( "data-" ) ) {
if ( name.indexOf("data-") === 0 ) {
name = jQuery.camelCase( name.slice(5) );
dataAttr( elem, name, data[ name ] );
@ -271,17 +270,16 @@ jQuery.fn.extend({
});
}
return jQuery.access( this, function( value ) {
if ( value === undefined ) {
// Try to fetch any internally stored data first
return elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
}
return arguments.length > 1 ?
// Sets one value
this.each(function() {
jQuery.data( this, key, value );
});
}, null, value, arguments.length > 1, null, true );
}) :
// Gets one value
// Try to fetch any internally stored data first
elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
},
removeData: function( key ) {