/*	Copyright (c) 2004-2006, The Dojo Foundation	All Rights Reserved.	Licensed under the Academic Free License version 2.1 or above OR the	modified BSD license. For more information on Dojo licensing, see:		http://dojotoolkit.org/community/licensing.shtml*/dojo.provide("dojo.html.metrics");dojo.require("dojo.html.layout");dojo.html.getScrollbar = function () {	var scroll = document.createElement("div");	scroll.style.width = "100px";	scroll.style.height = "100px";	scroll.style.overflow = "scroll";	scroll.style.position = "absolute";	scroll.style.top = "-300px";	scroll.style.left = "0px";	var test = document.createElement("div");	test.style.width = "400px";	test.style.height = "400px";	scroll.appendChild(test);	dojo.body().appendChild(scroll);	var width = scroll.offsetWidth - scroll.clientWidth;	dojo.body().removeChild(scroll);	scroll.removeChild(test);	scroll = test = null;	return {width:width};};dojo.html.getFontMeasurements = function () {	var heights = {"1em":0, "1ex":0, "100%":0, "12pt":0, "16px":0, "xx-small":0, "x-small":0, "small":0, "medium":0, "large":0, "x-large":0, "xx-large":0};	if (dojo.render.html.ie) {		document.documentElement.style.fontSize = "100%";	}	var div = document.createElement("div");	div.style.position = "absolute";	div.style.left = "-100px";	div.style.top = "0";	div.style.width = "30px";	div.style.height = "1000em";	div.style.border = "0";	div.style.margin = "0";	div.style.padding = "0";	div.style.outline = "0";	div.style.lineHeight = "1";	div.style.overflow = "hidden";	dojo.body().appendChild(div);	for (var p in heights) {		div.style.fontSize = p;		heights[p] = Math.round(div.offsetHeight * 12 / 16) * 16 / 12 / 1000;	}	dojo.body().removeChild(div);	div = null;	return heights;};dojo.html._fontMeasurements = null;dojo.html.getCachedFontMeasurements = function (recalculate) {	if (recalculate || !dojo.html._fontMeasurements) {		dojo.html._fontMeasurements = dojo.html.getFontMeasurements();	}	return dojo.html._fontMeasurements;};dojo.html.measureFragment = function (node, html, boxType) {	var clone = node.cloneNode(true);	clone.innerHTML = html;	node.parentNode.appendChild(clone);	var ret = dojo.html.getElementBox(clone, boxType);	node.parentNode.removeChild(clone);	clone = null;	return ret;};dojo.html.getFittedFragment = function (node, html) {	function cl(node) {		var element = document.createElement(node.tagName);		element.id = node.id + "-clone";		element.className = node.className;		for (var j = 0; j < node.attributes.length; j++) {			if (node.attributes[j].specified) {				if (node.attributes[j].nodeName.toLowerCase() != "style" && node.attributes[j].nodeName.toLowerCase() != "edited" && node.attributes[j].nodeName.toLowerCase() != "contenteditable" && node.attributes[j].nodeName.toLowerCase() != "id" && node.attributes[j].nodeName.toLowerCase() != "class") {					element.setAttribute(node.attributes[j].nodeName.toLowerCase(), node.attributes[j].nodeValue);				}			}		}		return element;	}	var height = dojo.html.getFontMeasurements()["16px"];	var n = cl(node);	n.style.width = dojo.html.getBorderBox(node).width + "px";	n.style.height = (height + 4) + "px";	node.parentNode.appendChild(n);	var rem = dojo.html.fitToElement(n, html);	var ret = n.innerHTML;	n.parentNode.removeChild(n);	return ret;};dojo.html.fitToElement = function (node, html) {	function cl(node) {		var element = document.createElement(node.tagName);		element.id = node.id + "-clone";		element.className = node.className;		for (var j = 0; j < node.attributes.length; j++) {			if (node.attributes[j].specified) {				if (node.attributes[j].nodeName.toLowerCase() != "style" && node.attributes[j].nodeName.toLowerCase() != "edited" && node.attributes[j].nodeName.toLowerCase() != "contenteditable" && node.attributes[j].nodeName.toLowerCase() != "id" && node.attributes[j].nodeName.toLowerCase() != "class") {					element.setAttribute(node.attributes[j].nodeName.toLowerCase(), node.attributes[j].nodeValue);				}			}		}		return element;	}	var clone = cl(node);	node.parentNode.appendChild(clone);	var t = dojo.html.getBorderBox(node);	clone.style.width = t.width + "px";	var singletons = ["br", "img", "hr", "input", "!--"];	var chop = ["<BR>", "<br>", "<br/>", "<br />", "<p></p>", "<P></P>"];	var openTags = [];	var str = html;	var i = 0;	var limit = str.length;	var add = 0;	var doLoop = true;	clone.innerHTML = str;	while (doLoop) {		add = Math.round((limit - i) / 2);		if (add <= 1) {			doLoop = false;		}		i += add;		clone.innerHTML = str.substr(0, i);		if (clone.offsetHeight > t.height) {			limit = i;			i -= add;		}	}	if (str.substr(0, i) != str) {		var lastSpace = str.substr(0, i).lastIndexOf(" ");		var lastNewLine = str.substr(0, i).lastIndexOf("\n");		var lastGreater = str.substr(0, i).lastIndexOf(">");		var lastLess = str.substr(0, i).lastIndexOf("<");		if (lastLess <= lastGreater && lastNewLine == i - 1) {			i = i;		} else {			if (lastSpace != -1 && lastSpace > lastGreater && lastGreater > lastLess) {				i = lastSpace + 1;			} else {				if (lastLess > lastGreater) {					i = lastLess;				} else {					if (lastGreater != -1) {						i = lastGreater + 1;					}				}			}		}	}	str = str.substr(0, i);	var ret = html.substr(str.length);	var doPush = true;	var tags = str.split("<");	tags.shift();	for (var j = 0; j < tags.length; j++) {		tags[j] = tags[j].split(">")[0];		if (tags[j].charAt(tags[j].length - 1) == "/") {			continue;		}		if (tags[j].charAt(0) != "/") {			for (var k = 0; k < singletons.length; k++) {				if (tags[j].split(" ")[0].toLowerCase() == singletons[k]) {					doPush = false;				}			}			if (doPush) {				openTags.push(tags[j]);			}			doPush = true;		} else {			openTags.pop();		}	}	for (var j = 0; j < chop.length; j++) {		if (ret.charAt(0) == "\n") {			ret = ret.substr(1);		}		while (ret.indexOf(chop[j]) == 0) {			ret = ret.substr(chop[j].length);		}	}	for (var j = openTags.length - 1; j >= 0; j--) {		if (str.lastIndexOf(openTags[j]) == (str.length - openTags[j].length - 1)) {			str = str.substring(0, str.lastIndexOf(openTags[j]));		} else {			str += "</" + openTags[j] + ">";		}		if (ret.length > 0) {			ret = "<" + openTags[j] + ">" + ret;		}	}	for (var j = 0; j < chop.length; j++) {		if (ret.charAt(0) == "\n") {			ret = ret.substr(1);		}		while (ret.indexOf(chop[j]) == 0) {			ret = ret.substr(chop[j].length);		}	}	node.innerHTML = str;	clone.parentNode.removeChild(clone);	clone = null;	return ret;};