/*	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.util");dojo.require("dojo.html.layout");dojo.html.getElementWindow = function (element) {	return dojo.html.getDocumentWindow(element.ownerDocument);};dojo.html.getDocumentWindow = function (doc) {	if (dojo.render.html.safari && !doc._parentWindow) {		var fix = function (win) {			win.document._parentWindow = win;			for (var i = 0; i < win.frames.length; i++) {				fix(win.frames[i]);			}		};		fix(window.top);	}	if (dojo.render.html.ie && window !== document.parentWindow && !doc._parentWindow) {		doc.parentWindow.execScript("document._parentWindow = window;", "Javascript");		var win = doc._parentWindow;		doc._parentWindow = null;		return win;	}	return doc._parentWindow || doc.parentWindow || doc.defaultView;};dojo.html.gravity = function (node, e) {	node = dojo.byId(node);	var mouse = dojo.html.getCursorPosition(e);	with (dojo.html) {		var absolute = getAbsolutePosition(node, true);		var bb = getBorderBox(node);		var nodecenterx = absolute.x + (bb.width / 2);		var nodecentery = absolute.y + (bb.height / 2);	}	with (dojo.html.gravity) {		return ((mouse.x < nodecenterx ? WEST : EAST) | (mouse.y < nodecentery ? NORTH : SOUTH));	}};dojo.html.gravity.NORTH = 1;dojo.html.gravity.SOUTH = 1 << 1;dojo.html.gravity.EAST = 1 << 2;dojo.html.gravity.WEST = 1 << 3;dojo.html.overElement = function (element, e) {	element = dojo.byId(element);	var mouse = dojo.html.getCursorPosition(e);	var bb = dojo.html.getBorderBox(element);	var absolute = dojo.html.getAbsolutePosition(element, true, dojo.html.boxSizing.BORDER_BOX);	var top = absolute.y;	var bottom = top + bb.height;	var left = absolute.x;	var right = left + bb.width;	return (mouse.x >= left && mouse.x <= right && mouse.y >= top && mouse.y <= bottom);};dojo.html.renderedTextContent = function (node) {	node = dojo.byId(node);	var result = "";	if (node == null) {		return result;	}	for (var i = 0; i < node.childNodes.length; i++) {		switch (node.childNodes[i].nodeType) {		  case 1:		  case 5:			var display = "unknown";			try {				display = dojo.html.getStyle(node.childNodes[i], "display");			}			catch (E) {			}			switch (display) {			  case "block":			  case "list-item":			  case "run-in":			  case "table":			  case "table-row-group":			  case "table-header-group":			  case "table-footer-group":			  case "table-row":			  case "table-column-group":			  case "table-column":			  case "table-cell":			  case "table-caption":				result += "\n";				result += dojo.html.renderedTextContent(node.childNodes[i]);				result += "\n";				break;			  case "none":				break;			  default:				if (node.childNodes[i].tagName && node.childNodes[i].tagName.toLowerCase() == "br") {					result += "\n";				} else {					result += dojo.html.renderedTextContent(node.childNodes[i]);				}				break;			}			break;		  case 3:		  case 2:		  case 4:			var text = node.childNodes[i].nodeValue;			var textTransform = "unknown";			try {				textTransform = dojo.html.getStyle(node, "text-transform");			}			catch (E) {			}			switch (textTransform) {			  case "capitalize":				var words = text.split(" ");				for (var i = 0; i < words.length; i++) {					words[i] = words[i].charAt(0).toUpperCase() + words[i].substring(1);				}				text = words.join(" ");				break;			  case "uppercase":				text = text.toUpperCase();				break;			  case "lowercase":				text = text.toLowerCase();				break;			  default:				break;			}			switch (textTransform) {			  case "nowrap":				break;			  case "pre-wrap":				break;			  case "pre-line":				break;			  case "pre":				break;			  default:				text = text.replace(/\s+/, " ");				if (/\s$/.test(result)) {					text.replace(/^\s/, "");				}				break;			}			result += text;			break;		  default:			break;		}	}	return result;};dojo.html.createNodesFromText = function (txt, trim) {	if (trim) {		txt = txt.replace(/^\s+|\s+$/g, "");	}	var tn = dojo.doc().createElement("div");	tn.style.visibility = "hidden";	dojo.body().appendChild(tn);	var tableType = "none";	if ((/^<t[dh][\s\r\n>]/i).test(txt.replace(/^\s+/))) {		txt = "<table><tbody><tr>" + txt + "</tr></tbody></table>";		tableType = "cell";	} else {		if ((/^<tr[\s\r\n>]/i).test(txt.replace(/^\s+/))) {			txt = "<table><tbody>" + txt + "</tbody></table>";			tableType = "row";		} else {			if ((/^<(thead|tbody|tfoot)[\s\r\n>]/i).test(txt.replace(/^\s+/))) {				txt = "<table>" + txt + "</table>";				tableType = "section";			}		}	}	tn.innerHTML = txt;	if (tn["normalize"]) {		tn.normalize();	}	var parent = null;	switch (tableType) {	  case "cell":		parent = tn.getElementsByTagName("tr")[0];		break;	  case "row":		parent = tn.getElementsByTagName("tbody")[0];		break;	  case "section":		parent = tn.getElementsByTagName("table")[0];		break;	  default:		parent = tn;		break;	}	var nodes = [];	for (var x = 0; x < parent.childNodes.length; x++) {		nodes.push(parent.childNodes[x].cloneNode(true));	}	tn.style.display = "none";	dojo.html.destroyNode(tn);	return nodes;};dojo.html.placeOnScreen = function (node, desiredX, desiredY, padding, hasScroll, corners, tryOnly) {	if (desiredX instanceof Array || typeof desiredX == "array") {		tryOnly = corners;		corners = hasScroll;		hasScroll = padding;		padding = desiredY;		desiredY = desiredX[1];		desiredX = desiredX[0];	}	if (corners instanceof String || typeof corners == "string") {		corners = corners.split(",");	}	if (!isNaN(padding)) {		padding = [Number(padding), Number(padding)];	} else {		if (!(padding instanceof Array || typeof padding == "array")) {			padding = [0, 0];		}	}	var scroll = dojo.html.getScroll().offset;	var view = dojo.html.getViewport();	node = dojo.byId(node);	var oldDisplay = node.style.display;	node.style.display = "";	var bb = dojo.html.getBorderBox(node);	var w = bb.width;	var h = bb.height;	node.style.display = oldDisplay;	if (!(corners instanceof Array || typeof corners == "array")) {		corners = ["TL"];	}	var bestx, besty, bestDistance = Infinity, bestCorner;	for (var cidex = 0; cidex < corners.length; ++cidex) {		var corner = corners[cidex];		var match = true;		var tryX = desiredX - (corner.charAt(1) == "L" ? 0 : w) + padding[0] * (corner.charAt(1) == "L" ? 1 : -1);		var tryY = desiredY - (corner.charAt(0) == "T" ? 0 : h) + padding[1] * (corner.charAt(0) == "T" ? 1 : -1);		if (hasScroll) {			tryX -= scroll.x;			tryY -= scroll.y;		}		if (tryX < 0) {			tryX = 0;			match = false;		}		if (tryY < 0) {			tryY = 0;			match = false;		}		var x = tryX + w;		if (x > view.width) {			x = view.width - w;			match = false;		} else {			x = tryX;		}		x = Math.max(padding[0], x) + scroll.x;		var y = tryY + h;		if (y > view.height) {			y = view.height - h;			match = false;		} else {			y = tryY;		}		y = Math.max(padding[1], y) + scroll.y;		if (match) {			bestx = x;			besty = y;			bestDistance = 0;			bestCorner = corner;			break;		} else {			var dist = Math.pow(x - tryX - scroll.x, 2) + Math.pow(y - tryY - scroll.y, 2);			if (bestDistance > dist) {				bestDistance = dist;				bestx = x;				besty = y;				bestCorner = corner;			}		}	}	if (!tryOnly) {		node.style.left = bestx + "px";		node.style.top = besty + "px";	}	return {left:bestx, top:besty, x:bestx, y:besty, dist:bestDistance, corner:bestCorner};};dojo.html.placeOnScreenPoint = function (node, desiredX, desiredY, padding, hasScroll) {	dojo.deprecated("dojo.html.placeOnScreenPoint", "use dojo.html.placeOnScreen() instead", "0.5");	return dojo.html.placeOnScreen(node, desiredX, desiredY, padding, hasScroll, ["TL", "TR", "BL", "BR"]);};dojo.html.placeOnScreenAroundElement = function (node, aroundNode, padding, aroundType, aroundCorners, tryOnly) {	var best, bestDistance = Infinity;	aroundNode = dojo.byId(aroundNode);	var oldDisplay = aroundNode.style.display;	aroundNode.style.display = "";	var mb = dojo.html.getElementBox(aroundNode, aroundType);	var aroundNodeW = mb.width;	var aroundNodeH = mb.height;	var aroundNodePos = dojo.html.getAbsolutePosition(aroundNode, true, aroundType);	aroundNode.style.display = oldDisplay;	for (var nodeCorner in aroundCorners) {		var pos, desiredX, desiredY;		var corners = aroundCorners[nodeCorner];		desiredX = aroundNodePos.x + (nodeCorner.charAt(1) == "L" ? 0 : aroundNodeW);		desiredY = aroundNodePos.y + (nodeCorner.charAt(0) == "T" ? 0 : aroundNodeH);		pos = dojo.html.placeOnScreen(node, desiredX, desiredY, padding, true, corners, true);		if (pos.dist == 0) {			best = pos;			break;		} else {			if (bestDistance > pos.dist) {				bestDistance = pos.dist;				best = pos;			}		}	}	if (!tryOnly) {		node.style.left = best.left + "px";		node.style.top = best.top + "px";	}	return best;};dojo.html.scrollIntoView = function (node) {	if (!node) {		return;	}	if (dojo.render.html.ie) {		if (dojo.html.getBorderBox(node.parentNode).height <= node.parentNode.scrollHeight) {			node.scrollIntoView(false);		}	} else {		if (dojo.render.html.mozilla) {			node.scrollIntoView(false);		} else {			var parent = node.parentNode;			var parentBottom = parent.scrollTop + dojo.html.getBorderBox(parent).height;			var nodeBottom = node.offsetTop + dojo.html.getMarginBox(node).height;			if (parentBottom < nodeBottom) {				parent.scrollTop += (nodeBottom - parentBottom);			} else {				if (parent.scrollTop > node.offsetTop) {					parent.scrollTop -= (parent.scrollTop - node.offsetTop);				}			}		}	}};