dojo.html.getAbsolutePosition = dojo.html.abs = function()

in plugins/struts2-dojo-plugin/src/main/resources/org/apache/struts2/static/dojo/src/html/layout.js [67:164]
98 lines of code
31 McCabe index (conditional complexity)

dojo.html.getAbsolutePosition = dojo.html.abs = function (node, includeScroll, boxType) {
	node = dojo.byId(node, node.ownerDocument);
	var ret = {x:0, y:0};
	var bs = dojo.html.boxSizing;
	if (!boxType) {
		boxType = bs.CONTENT_BOX;
	}
	var nativeBoxType = 2;
	var targetBoxType;
	switch (boxType) {
	  case bs.MARGIN_BOX:
		targetBoxType = 3;
		break;
	  case bs.BORDER_BOX:
		targetBoxType = 2;
		break;
	  case bs.PADDING_BOX:
	  default:
		targetBoxType = 1;
		break;
	  case bs.CONTENT_BOX:
		targetBoxType = 0;
		break;
	}
	var h = dojo.render.html;
	var db = document["body"] || document["documentElement"];
	if (h.ie) {
		with (node.getBoundingClientRect()) {
			ret.x = left - 2;
			ret.y = top - 2;
		}
	} else {
		if (document.getBoxObjectFor) {
			nativeBoxType = 1;
			try {
				var bo = document.getBoxObjectFor(node);
				ret.x = bo.x - dojo.html.sumAncestorProperties(node, "scrollLeft");
				ret.y = bo.y - dojo.html.sumAncestorProperties(node, "scrollTop");
			}
			catch (e) {
			}
		} else {
			if (node["offsetParent"]) {
				var endNode;
				if ((h.safari) && (node.style.getPropertyValue("position") == "absolute") && (node.parentNode == db)) {
					endNode = db;
				} else {
					endNode = db.parentNode;
				}
				if (node.parentNode != db) {
					var nd = node;
					if (dojo.render.html.opera) {
						nd = db;
					}
					ret.x -= dojo.html.sumAncestorProperties(nd, "scrollLeft");
					ret.y -= dojo.html.sumAncestorProperties(nd, "scrollTop");
				}
				var curnode = node;
				do {
					var n = curnode["offsetLeft"];
					if (!h.opera || n > 0) {
						ret.x += isNaN(n) ? 0 : n;
					}
					var m = curnode["offsetTop"];
					ret.y += isNaN(m) ? 0 : m;
					curnode = curnode.offsetParent;
				} while ((curnode != endNode) && (curnode != null));
			} else {
				if (node["x"] && node["y"]) {
					ret.x += isNaN(node.x) ? 0 : node.x;
					ret.y += isNaN(node.y) ? 0 : node.y;
				}
			}
		}
	}
	if (includeScroll) {
		var scroll = dojo.html.getScroll();
		ret.y += scroll.top;
		ret.x += scroll.left;
	}
	var extentFuncArray = [dojo.html.getPaddingExtent, dojo.html.getBorderExtent, dojo.html.getMarginExtent];
	if (nativeBoxType > targetBoxType) {
		for (var i = targetBoxType; i < nativeBoxType; ++i) {
			ret.y += extentFuncArray[i](node, "top");
			ret.x += extentFuncArray[i](node, "left");
		}
	} else {
		if (nativeBoxType < targetBoxType) {
			for (var i = targetBoxType; i > nativeBoxType; --i) {
				ret.y -= extentFuncArray[i - 1](node, "top");
				ret.x -= extentFuncArray[i - 1](node, "left");
			}
		}
	}
	ret.top = ret.y;
	ret.left = ret.x;
	return ret;
};