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at November 24, 2009 14:10 by jamalrob
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// ********************************************* // CENTER AN ELEMENT IN THE CLIENT'S WINDOW // $.fn.centerInClient = function(options) { /// <summary>Centers the selected items in the browser window. Takes into account scroll position. /// Ideally the selected set should only match a single element. /// </summary> /// <param name="fn" type="Function">Optional function called when centering is complete. Passed DOM element as parameter</param> /// <param name="forceAbsolute" type="Boolean">if true forces the element to be removed from the document flow /// and attached to the body element to ensure proper absolute positioning. /// Be aware that this may cause ID hierachy for CSS styles to be affected. /// </param> /// <returns type="jQuery" /> var opt = { forceAbsolute: false, container: window, // selector of element to center in completeHandler: null }; $.extend(opt, options); return this.each(function(i) { var el = $(this); var jWin = $(opt.container); var isWin = opt.container == window; // force to the top of document to ENSURE that // document absolute positioning is available if (opt.forceAbsolute) { if (isWin) el.remove().appendTo("body"); else el.remove().appendTo(jWin.get(0)); } // have to make absolute el.css("position", "absolute"); // height is off a bit so fudge it var heightFudge = isWin ? 2.0 : 1.8; var x = (isWin ? jWin.width() : jWin.outerWidth()) / 2 - el.outerWidth() / 2; var y = (isWin ? jWin.height() : jWin.outerHeight()) / heightFudge - el.outerHeight() / 2; el.css("left", x + jWin.scrollLeft()); el.css("top", y + jWin.scrollTop()); // if specified make callback and pass element if (opt.completeHandler) opt.completeHandler(this); }); } // *********************************************
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Center an element in a client's window (eg. modal box)
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jQuery