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Make sure body is defined before attempting to use its properties. This check prevents an error from occurring when the width() or height() methods are called before the body is defined in browsers that return false on the first condition and proceed on to the second. For example, simply calling $( window ).width() from a script in the HEAD will throw an error in Nokia webkit browsers without this check in place.

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scottjehl 2011-08-02 18:38:35 -04:00
parent 27291ff06d
commit c8cc1b35e4
1 changed files with 3 additions and 2 deletions
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src/dimensions.js
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@ -38,9 +38,10 @@ jQuery.each([ "Height", "Width" ], function( i, name ) {
if ( jQuery.isWindow( elem ) ) { if ( jQuery.isWindow( elem ) ) {
// Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode // Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
// 3rd condition allows Nokia support, as it supports the docElem prop but not CSS1Compat // 3rd condition allows Nokia support, as it supports the docElem prop but not CSS1Compat
var docElemProp = elem.document.documentElement[ "client" + name ]; var docElemProp = elem.document.documentElement[ "client" + name ],
body = elem.document.body;
return elem.document.compatMode === "CSS1Compat" && docElemProp || return elem.document.compatMode === "CSS1Compat" && docElemProp ||
elem.document.body[ "client" + name ] || docElemProp; body && body[ "client" + name ] || docElemProp;
// Get document width or height // Get document width or height
} else if ( elem.nodeType === 9 ) { } else if ( elem.nodeType === 9 ) {