mirror of
https://github.com/jquery/jquery.git
synced 2024-11-23 02:54:22 +00:00
Create private methods for processing data/removeData requests. Fixes #12519, Closes gh-976
This commit is contained in:
carldanley
Rick Waldron
parent
2e3ca6ca46
commit
08e134548f
354
src/data.js
354
src/data.js
@ -1,5 +1,179 @@
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var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
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rmultiDash = /([A-Z])/g;
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function internalData( elem, name, data, pvt /* Internal Use Only */ ){
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if ( !jQuery.acceptData( elem ) ) {
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return;
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}
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var thisCache, ret,
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internalKey = jQuery.expando,
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getByName = typeof name === "string",
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// We have to handle DOM nodes and JS objects differently because IE6-7
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// can't GC object references properly across the DOM-JS boundary
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isNode = elem.nodeType,
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// Only DOM nodes need the global jQuery cache; JS object data is
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// attached directly to the object so GC can occur automatically
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cache = isNode ? jQuery.cache : elem,
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// Only defining an ID for JS objects if its cache already exists allows
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// the code to shortcut on the same path as a DOM node with no cache
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id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;
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// Avoid doing any more work than we need to when trying to get data on an
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// object that has no data at all
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if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
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return;
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}
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if ( !id ) {
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// Only DOM nodes need a new unique ID for each element since their data
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// ends up in the global cache
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if ( isNode ) {
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elem[ internalKey ] = id = jQuery.deletedIds.pop() || jQuery.guid++;
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} else {
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id = internalKey;
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}
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}
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if ( !cache[ id ] ) {
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cache[ id ] = {};
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// Avoids exposing jQuery metadata on plain JS objects when the object
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// is serialized using JSON.stringify
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if ( !isNode ) {
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cache[ id ].toJSON = jQuery.noop;
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}
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}
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// An object can be passed to jQuery.data instead of a key/value pair; this gets
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// shallow copied over onto the existing cache
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if ( typeof name === "object" || typeof name === "function" ) {
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if ( pvt ) {
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cache[ id ] = jQuery.extend( cache[ id ], name );
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} else {
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cache[ id ].data = jQuery.extend( cache[ id ].data, name );
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}
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}
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thisCache = cache[ id ];
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// jQuery data() is stored in a separate object inside the object's internal data
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// cache in order to avoid key collisions between internal data and user-defined
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// data.
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if ( !pvt ) {
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if ( !thisCache.data ) {
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thisCache.data = {};
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}
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thisCache = thisCache.data;
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}
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if ( data !== undefined ) {
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thisCache[ jQuery.camelCase( name ) ] = data;
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}
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// Check for both converted-to-camel and non-converted data property names
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// If a data property was specified
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if ( getByName ) {
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// First Try to find as-is property data
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ret = thisCache[ name ];
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// Test for null|undefined property data
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if ( ret == null ) {
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// Try to find the camelCased property
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ret = thisCache[ jQuery.camelCase( name ) ];
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}
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} else {
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ret = thisCache;
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}
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return ret;
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}
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function internalRemoveData( elem, name, pvt /* For internal use only */ ){
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if ( !jQuery.acceptData( elem ) ) {
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return;
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}
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var thisCache, i, l,
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isNode = elem.nodeType,
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// See jQuery.data for more information
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cache = isNode ? jQuery.cache : elem,
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id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
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// If there is already no cache entry for this object, there is no
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// purpose in continuing
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if ( !cache[ id ] ) {
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return;
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}
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if ( name ) {
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thisCache = pvt ? cache[ id ] : cache[ id ].data;
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if ( thisCache ) {
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// Support array or space separated string names for data keys
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if ( !jQuery.isArray( name ) ) {
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// try the string as a key before any manipulation
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if ( name in thisCache ) {
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name = [ name ];
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} else {
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// split the camel cased version by spaces unless a key with the spaces exists
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name = jQuery.camelCase( name );
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if ( name in thisCache ) {
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name = [ name ];
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} else {
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name = name.split(" ");
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}
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}
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}
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for ( i = 0, l = name.length; i < l; i++ ) {
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delete thisCache[ name[i] ];
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}
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// If there is no data left in the cache, we want to continue
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// and let the cache object itself get destroyed
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if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
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return;
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}
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}
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}
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// See jQuery.data for more information
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if ( !pvt ) {
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delete cache[ id ].data;
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// Don't destroy the parent cache unless the internal data object
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// had been the only thing left in it
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if ( !isEmptyDataObject( cache[ id ] ) ) {
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return;
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}
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}
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// Destroy the cache
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if ( isNode ) {
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jQuery.cleanData( [ elem ], true );
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// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
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} else if ( jQuery.support.deleteExpando || cache != cache.window ) {
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delete cache[ id ];
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// When all else fails, null
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} else {
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cache[ id ] = null;
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}
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}
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jQuery.extend({
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cache: {},
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@ -27,183 +201,21 @@ jQuery.extend({
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return !!elem && !isEmptyDataObject( elem );
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},
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data: function( elem, name, data, pvt /* Internal Use Only */ ) {
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if ( !jQuery.acceptData( elem ) ) {
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return;
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}
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var thisCache, ret,
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internalKey = jQuery.expando,
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getByName = typeof name === "string",
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// We have to handle DOM nodes and JS objects differently because IE6-7
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// can't GC object references properly across the DOM-JS boundary
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isNode = elem.nodeType,
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// Only DOM nodes need the global jQuery cache; JS object data is
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// attached directly to the object so GC can occur automatically
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cache = isNode ? jQuery.cache : elem,
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// Only defining an ID for JS objects if its cache already exists allows
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// the code to shortcut on the same path as a DOM node with no cache
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id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;
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// Avoid doing any more work than we need to when trying to get data on an
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// object that has no data at all
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if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
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return;
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}
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if ( !id ) {
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// Only DOM nodes need a new unique ID for each element since their data
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// ends up in the global cache
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if ( isNode ) {
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elem[ internalKey ] = id = jQuery.deletedIds.pop() || jQuery.guid++;
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} else {
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id = internalKey;
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}
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}
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if ( !cache[ id ] ) {
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cache[ id ] = {};
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// Avoids exposing jQuery metadata on plain JS objects when the object
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// is serialized using JSON.stringify
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if ( !isNode ) {
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cache[ id ].toJSON = jQuery.noop;
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}
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}
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// An object can be passed to jQuery.data instead of a key/value pair; this gets
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// shallow copied over onto the existing cache
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if ( typeof name === "object" || typeof name === "function" ) {
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if ( pvt ) {
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cache[ id ] = jQuery.extend( cache[ id ], name );
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} else {
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cache[ id ].data = jQuery.extend( cache[ id ].data, name );
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}
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}
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thisCache = cache[ id ];
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// jQuery data() is stored in a separate object inside the object's internal data
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// cache in order to avoid key collisions between internal data and user-defined
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// data.
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if ( !pvt ) {
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if ( !thisCache.data ) {
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thisCache.data = {};
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}
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thisCache = thisCache.data;
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}
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if ( data !== undefined ) {
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thisCache[ jQuery.camelCase( name ) ] = data;
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}
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// Check for both converted-to-camel and non-converted data property names
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// If a data property was specified
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if ( getByName ) {
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// First Try to find as-is property data
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ret = thisCache[ name ];
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// Test for null|undefined property data
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if ( ret == null ) {
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// Try to find the camelCased property
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ret = thisCache[ jQuery.camelCase( name ) ];
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}
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} else {
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ret = thisCache;
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}
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return ret;
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data: function( elem, name, data ) {
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return internalData( elem, name, data, false );
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},
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removeData: function( elem, name, pvt /* Internal Use Only */ ) {
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if ( !jQuery.acceptData( elem ) ) {
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return;
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}
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var thisCache, i, l,
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isNode = elem.nodeType,
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// See jQuery.data for more information
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cache = isNode ? jQuery.cache : elem,
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id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
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// If there is already no cache entry for this object, there is no
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// purpose in continuing
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if ( !cache[ id ] ) {
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return;
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}
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if ( name ) {
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thisCache = pvt ? cache[ id ] : cache[ id ].data;
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if ( thisCache ) {
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// Support array or space separated string names for data keys
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if ( !jQuery.isArray( name ) ) {
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// try the string as a key before any manipulation
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if ( name in thisCache ) {
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name = [ name ];
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} else {
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// split the camel cased version by spaces unless a key with the spaces exists
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name = jQuery.camelCase( name );
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if ( name in thisCache ) {
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name = [ name ];
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} else {
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name = name.split(" ");
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}
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}
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}
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for ( i = 0, l = name.length; i < l; i++ ) {
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delete thisCache[ name[i] ];
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}
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// If there is no data left in the cache, we want to continue
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// and let the cache object itself get destroyed
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if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
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return;
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}
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}
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}
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// See jQuery.data for more information
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if ( !pvt ) {
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delete cache[ id ].data;
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// Don't destroy the parent cache unless the internal data object
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// had been the only thing left in it
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if ( !isEmptyDataObject( cache[ id ] ) ) {
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return;
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}
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}
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// Destroy the cache
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if ( isNode ) {
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jQuery.cleanData( [ elem ], true );
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// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
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} else if ( jQuery.support.deleteExpando || cache != cache.window ) {
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delete cache[ id ];
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// When all else fails, null
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} else {
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cache[ id ] = null;
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}
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removeData: function( elem, name ) {
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return internalRemoveData( elem, name, false );
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},
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// For internal use only.
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_data: function( elem, name, data ) {
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return jQuery.data( elem, name, data, true );
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return internalData( elem, name, data, true );
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},
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_removeData: function( elem, name ) {
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return internalRemoveData( elem, name, true );
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},
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// A method for determining if a DOM node can handle the data expando
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2
src/effects.js
vendored
2
src/effects.js
vendored
@ -327,7 +327,7 @@ function defaultPrefilter( elem, props, opts ) {
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}
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anim.done(function() {
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var prop;
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jQuery.removeData( elem, "fxshow", true );
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jQuery._removeData( elem, "fxshow" );
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for ( prop in orig ) {
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jQuery.style( elem, prop, orig[ prop ] );
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}
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@ -15,7 +15,6 @@ var rformElems = /^(?:textarea|input|select)$/i,
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jQuery.event = {
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add: function( elem, types, handler, data, selector ) {
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var elemData, eventHandle, events,
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t, tns, type, namespaces, handleObj,
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handleObjIn, handlers, special;
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@ -196,7 +195,7 @@ jQuery.event = {
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// removeData also checks for emptiness and clears the expando if empty
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// so use it instead of delete
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jQuery.removeData( elem, "events", true );
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jQuery._removeData( elem, "events" );
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}
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},
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@ -58,8 +58,8 @@ jQuery.extend({
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var key = type + "queueHooks";
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return jQuery._data( elem, key ) || jQuery._data( elem, key, {
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empty: jQuery.Callbacks("once memory").add(function() {
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jQuery.removeData( elem, type + "queue", true );
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jQuery.removeData( elem, key, true );
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jQuery._removeData( elem, type + "queue" );
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jQuery._removeData( elem, key );
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})
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});
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}
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@ -19,7 +19,7 @@ function dataTests (elem) {
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}
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var oldCacheLength, dataObj, internalDataObj, expected, actual;
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equal( jQuery.data(elem, "foo"), undefined, "No data exists initially" );
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strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees no data exists initially" );
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@ -50,7 +50,7 @@ function dataTests (elem) {
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strictEqual( jQuery.data(elem, "foo"), "foo1", "Passing an object extends the data object instead of replacing it" );
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equal( jQuery.data(elem, "boom"), "bloz", "Extending the data object works" );
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jQuery._data(elem, "foo", "foo2");
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jQuery._data(elem, "foo", "foo2", true);
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equal( jQuery._data(elem, "foo"), "foo2", "Setting internal data works" );
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equal( jQuery.data(elem, "foo"), "foo1", "Setting internal data does not override user data" );
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@ -66,9 +66,9 @@ function dataTests (elem) {
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jQuery.removeData(elem);
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strictEqual( jQuery._data(elem), internalDataObj, "jQuery.removeData does not remove internal data if it exists" );
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jQuery.removeData(elem, undefined, true);
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jQuery._removeData(elem);
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strictEqual( jQuery.data(elem, jQuery.expando), undefined, "jQuery.removeData on internal data works" );
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strictEqual( jQuery._data(elem, jQuery.expando), undefined, "jQuery.removeData on internal data works" );
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strictEqual( jQuery.hasData(elem), false, "jQuery.hasData agrees all data has been removed from object" );
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jQuery._data(elem, "foo", "foo2");
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@ -79,7 +79,7 @@ function dataTests (elem) {
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// delete the last private data key so we can test removing public data
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// will destroy the cache
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jQuery.removeData( elem, "foo", true );
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jQuery._removeData( elem, "foo" );
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if (elem.nodeType) {
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oldCacheLength = getCacheLength();
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@ -109,9 +109,9 @@ function dataTests (elem) {
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equal( jQuery.data(elem, "foo"), "foo1", "(sanity check) Ensure data is set in user data object" );
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equal( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" );
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jQuery.removeData(elem, "foo", true);
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jQuery._removeData(elem, "foo");
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strictEqual( jQuery.data(elem, jQuery.expando), undefined, "Removing the last item in internal data destroys the internal data object" );
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strictEqual( jQuery._data(elem, jQuery.expando), undefined, "Removing the last item in internal data destroys the internal data object" );
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jQuery._data(elem, "foo", "foo2");
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equal( jQuery._data(elem, "foo"), "foo2", "(sanity check) Ensure data is set in internal data object" );
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@ -121,11 +121,11 @@ function dataTests (elem) {
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if ( elem.nodeType ) {
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oldCacheLength = getCacheLength();
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jQuery.removeData(elem, "foo", true);
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jQuery._removeData(elem, "foo");
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equal( getCacheLength(), oldCacheLength - 1, "Removing the last item in the internal data object also destroys the user data object when it is empty" );
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}
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else {
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jQuery.removeData(elem, "foo", true);
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jQuery._removeData(elem, "foo");
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if (jQuery.support.deleteExpando) {
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expected = false;
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