Added css hook to work around bug in WebKit computed margin-right. Fixes #3333 -...

[jquery.git] / src / support.js

diff --git a/src/support.js b/src/support.js
index 97b4a42..939ad4f 100644 (file)
--- a/src/support.js
+++ b/src/support.js
@@ -12,7 +12,8 @@
        var all = div.getElementsByTagName("*"),
                a = div.getElementsByTagName("a")[0],
                select = document.createElement("select"),
-               opt = select.appendChild( document.createElement("option") );
+               opt = select.appendChild( document.createElement("option") ),
+               input = div.getElementsByTagName("input")[0];
 
        // Can't get basic test support
        if ( !all || !all.length || !a ) {
@@ -51,7 +52,7 @@
                // Make sure that if no value is specified for a checkbox
                // that it defaults to "on".
                // (WebKit defaults to "" instead)
-               checkOn: div.getElementsByTagName("input")[0].value === "on",
+               checkOn: input.value === "on",
 
                // Make sure that a selected-by-default option has a working selected property.
                // (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
@@ -62,12 +63,17 @@
                optDisabled: false,
                checkClone: false,
                noCloneEvent: true,
+               noCloneChecked: true,
                boxModel: null,
                inlineBlockNeedsLayout: false,
                shrinkWrapBlocks: false,
-               reliableHiddenOffsets: true
+               reliableHiddenOffsets: true,
+               reliableMarginRight: true
        };
 
+       input.checked = true;
+       jQuery.support.noCloneChecked = input.cloneNode( true ).checked;
+
        // Make sure that the options inside disabled selects aren't marked as disabled
        // (WebKit marks them as diabled)
        select.disabled = true;
@@ -183,6 +189,17 @@
                jQuery.support.reliableHiddenOffsets = jQuery.support.reliableHiddenOffsets && tds[0].offsetHeight === 0;
                div.innerHTML = "";
 
+               // Check if div with explicit width and no margin-right incorrectly
+               // gets computed margin-right based on width of container. For more
+               // info see bug #3333
+               // Fails in WebKit before Feb 2011 nightlies
+               // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+               if ( document.defaultView && document.defaultView.getComputedStyle ) {
+                       div.style.width = "1px";
+                       div.style.marginRight = "0";
+                       jQuery.support.reliableMarginRight = ( parseInt(document.defaultView.getComputedStyle(div).marginRight, 10) || 0 ) === 0;
+               }
+
                body.removeChild( div ).style.display = "none";
                div = tds = null;
        });