X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fdata.js;h=44ad0c49e57ae97f8296bb516df1a8d6b468761a;hb=e7c2d3b45bf0e8fbe9d7c9316b6c5adb2c019ea3;hp=6dcfb4c2278ca44ac595a2538ebd9e43b18f4ce6;hpb=9faab0b74fd316c2161612236d9ea8a01f3c78f8;p=jquery.git

diff --git a/src/data.js b/src/data.js
index 6dcfb4c..44ad0c4 100644
--- a/src/data.js
+++ b/src/data.js
@@ -1,4 +1,8 @@
-var windowData = {};
+(function( jQuery ) {
+
+var windowData = {},
+	rnum = /^-?\d+(?:\.\d+)$/,
+	rbrace = /^{.*}$/;
 
 jQuery.extend({
 	cache: {},
@@ -27,7 +31,8 @@ jQuery.extend({
 			elem;
 
 		var id = elem[ jQuery.expando ], cache = jQuery.cache, thisCache,
-			isNode = elem.nodeType;
+			isNode = elem.nodeType,
+			store;
 
 		if ( !id && typeof name === "string" && data === undefined ) {
 			return;
@@ -49,27 +54,25 @@ jQuery.extend({
 			if ( isNode ) {
 				cache[ id ] = jQuery.extend(true, {}, name);
 			} else {
+				store = jQuery.extend(true, {}, name);
 				cache[ id ] = function() {
-					return jQuery.extend(true, {}, name);
-				}
+					return store;
+				};
 			}
 
 		} else if ( !cache[ id ] ) {
 			if ( isNode ) {
 				cache[ id ] = {};
 			} else {
-				var store = {};
+				store = {};
 				cache[ id ] = function() {
 					return store;
-				}
+				};
 			}
 			
 		}
 
-		thisCache = cache[ id ];
-		if ( !isNode ) {
-			thisCache = thisCache();
-		}
+		thisCache = isNode ? cache[ id ] : cache[ id ]();
 
 		// Prevent overriding the named cache with undefined values
 		if ( data !== undefined ) {
@@ -141,16 +144,42 @@ jQuery.fn.extend({
 		if ( value === undefined ) {
 			var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
 
+			// Try to fetch any internally stored data first
 			if ( data === undefined && this.length ) {
 				data = jQuery.data( this[0], key );
+
+				// If nothing was found internally, try to fetch any
+				// data from the HTML5 data-* attribute
+				if ( data === undefined && this[0].nodeType === 1 ) {
+					data = this[0].getAttribute( "data-" + key );
+
+					if ( typeof data === "string" ) {
+						try {
+							data = data === "true" ? true :
+								data === "false" ? false :
+								data === "null" ? null :
+								rnum.test( data ) ? parseFloat( data ) :
+								rbrace.test( data ) ? jQuery.parseJSON( data ) :
+								data;
+						} catch( e ) {}
+
+					} else {
+						data = undefined;
+					}
+				}
 			}
+
 			return data === undefined && parts[1] ?
 				this.data( parts[0] ) :
 				data;
+
 		} else {
-			return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function() {
+			return this.each(function() {
+				var $this = jQuery( this ), args = [ parts[0], value ];
+
+				$this.triggerHandler( "setData" + parts[1] + "!", args );
 				jQuery.data( this, key, value );
-				jQuery.event.trigger( "changeData" + parts[1] + "!", [parts[0], value], this );
+				$this.triggerHandler( "changeData" + parts[1] + "!", args );
 			});
 		}
 	},
@@ -161,3 +190,5 @@ jQuery.fn.extend({
 		});
 	}
 });
+
+})( jQuery );