diff --git a/src/effects.js b/src/effects.js
index 7aec8300..a43d5cb3 100644
--- a/src/effects.js
+++ b/src/effects.js
@@ -1,6 +1,8 @@
(function( jQuery ) {
var elemdisplay = {},
+ iframe = null,
+ iframeDoc = null,
rfxtypes = /^(?:toggle|show|hide)$/,
rfxnum = /^([+\-]=)?([\d+.\-]+)([a-z%]*)$/i,
timerId,
@@ -548,20 +550,52 @@ if ( jQuery.expr && jQuery.expr.filters ) {
}
function defaultDisplay( nodeName ) {
+
if ( !elemdisplay[ nodeName ] ) {
- var elem = jQuery("<" + nodeName + ">").appendTo("body"),
- display = elem.css("display");
+
+ var elem = jQuery( "<" + nodeName + ">" ).appendTo( "body" ),
+ display = elem.css( "display" );
elem.remove();
if ( display === "none" || display === "" ) {
- display = "block";
+
+ // Get element's real default display by attaching it to a temp iframe
+ // Conritbutions from Louis Remi and Julian Aurbourg
+ // based on recommendation by Louis Remi
+
+ // No iframe to use yet, so create it
+ if ( !iframe ) {
+ iframe = document.createElement( "iframe" );
+ iframe.frameBorder = iframe.width = iframe.height = 0;
+ }
+
+ document.body.appendChild( iframe );
+
+ // Create a cacheable copy of the iframe document on first call.
+ // IE and Opera will allow us to reuse the iframeDoc without re-writing the fake html
+ // document to it, Webkit & Firefox won't allow reusing the iframe document
+ if ( !iframeDoc || !iframe.createElement ) {
+ iframeDoc = ( iframe.contentWindow || iframe.contentDocument ).document;
+ iframeDoc.write( "" );
+ }
+
+ elem = iframeDoc.createElement( nodeName );
+
+ iframeDoc.body.appendChild( elem );
+
+ display = jQuery.css( elem, "display" );
+
+ document.body.removeChild( iframe );
}
+ // Store the correct default display
elemdisplay[ nodeName ] = display;
}
return elemdisplay[ nodeName ];
}
+
+
})( jQuery );
diff --git a/test/data/testsuite.css b/test/data/testsuite.css
index a9dd97ba..99851eaa 100644
--- a/test/data/testsuite.css
+++ b/test/data/testsuite.css
@@ -111,4 +111,9 @@ div#show-tests * { display: none; }
#nothiddendivchild.prct { font-size: 150%; }
/* For testing type on vml in IE #7071 */
-v\:oval { behavior:url(#default#VML); display:inline-block; }
\ No newline at end of file
+v\:oval { behavior:url(#default#VML); display:inline-block; }
+
+/* 8099 changes to default styles are read correctly */
+tt { display: none; }
+sup { display: none; }
+dfn { display: none; }
diff --git a/test/unit/effects.js b/test/unit/effects.js
index 4faf6174..8b7cf467 100644
--- a/test/unit/effects.js
+++ b/test/unit/effects.js
@@ -162,6 +162,28 @@ test("Persist correct display value", function() {
});
});
+test("show() resolves correct default display #8099", function() {
+ expect(7);
+ var tt8099 = jQuery("").appendTo("body"),
+ dfn8099 = jQuery("", { html: "foo"}).appendTo("body");
+
+ equals( tt8099.css("display"), "none", "default display override for all tt" );
+ equals( tt8099.show().css("display"), "inline", "Correctly resolves display:inline" );
+
+ equals( jQuery("#foo").hide().show().css("display"), "block", "Correctly resolves display:block after hide/show" );
+
+ equals( tt8099.hide().css("display"), "none", "default display override for all tt" );
+ equals( tt8099.show().css("display"), "inline", "Correctly resolves display:inline" );
+
+ equals( dfn8099.css("display"), "none", "default display override for all dfn" );
+ equals( dfn8099.show().css("display"), "inline", "Correctly resolves display:inline" );
+
+ tt8099.remove();
+ dfn8099.remove();
+
+});
+
+
test("animate(Hash, Object, Function)", function() {
expect(1);
stop();