MediaWiki:GraphMLViewer.js

// // yWorks GraphMLViewer 1.0 // // var isIE = (navigator.appVersion.indexOf("MSIE") != -1); var isWin = (navigator.appVersion.toLowerCase.indexOf("win") != -1); var isOpera = (navigator.userAgent.indexOf("Opera") != -1);

// Get the URL of the HTML document. Needed to convert relative URLs into absolute URLs. function GetUrl { return location.href; }

var _factories = [ function { return new XMLHttpRequest;}, function { return new ActiveXObject("Msxml2.XMLHTTP"); }, function { return new ActiveXObject("Microsoft.XMLHTTP"); }];

var _factory = null;

// Creates a HttpRequest from one of the factories function newRequest { if (_factory != null) return _factory; for (var i=0; i<_factories.length; i++) { try { var factory = _factories[i]; var request = factory; if (request != null) { _factory = factory; return request; }   }catch(e) { continue; } }  return null; }

// loads a GraphML function LoadGraphML(url) { var request = newRequest; var func = null;	//getCompleteCallback;	// async loading doesn't work currently if (request != null) { if (func) { request.open("GET", url, true); request.onreadystatechange = function { if (request.readyState == 4) { onLoadComplete(request.responseText); }     }      request.send(null); return "async"; } else { request.open("GET", url, false); request.send(null); //     var response = request.responseXML; var text = request.responseText; if (text) return text;

}

} return null; }

function getCompleteCallback { var swfFile; if (navigator.appName.indexOf("Microsoft") != -1) { swfFile = window["GraphMLViewer"]; } else { swfFile = document["GraphMLViewer"]; } return swfFile.loadCompleteCallback; }

function onLoadComplete(value) { var func = getCompleteCallback; func(value); }

// Gets the parameters and creates and starts the viewer. // Returns false if the Flash Player is too old or not installed. function RunPlayer {

var hasRequestedVersion = DetectFlashVer(9, 0, 38);

var params = CreateParams(arguments);

if (!hasRequestedVersion) { return false; }

initMouseWheel;

var url = "GraphMLViewer.swf"; if (location.href.substr(0, 5) != "file:") { url = "http://www.yworks.com/products/graphmlviewer/1.1/GraphMLViewer.swf"; }

var str = '' + ' ' + ' ' + ' ' + ' ' + ' ' + ' ' + ' ' +           ' ';

document.write(str);

return true; }

function CreateParams(args) { var ret = new Object; var flashVars = new Object; for (var i = 0; i < args.length; i += 2) { var param = String(args[i]).toLowerCase; switch (param) { case "width": case "height": case "flashvars": case "id": ret[param] = args[i + 1]; break; default: flashVars[param] = args[i + 1]; break; } }  if (!ret["flashvars"]) { var flashVarString = ""; if (flashVars["graphurl"] != null) { flashVarString = flashVarString + "&graphUrl=" + flashVars["graphurl"]; }   if (flashVars["overview"] != null) { flashVarString = flashVarString + "&overview=" + flashVars["overview"]; }   if (flashVars["toolbar"] != null) { flashVarString = flashVarString + "&toolbar=" + flashVars["toolbar"]; }   if (flashVars["tooltips"] != null) { flashVarString = flashVarString + "&tooltips=" + flashVars["tooltips"]; }   if (flashVars["movable"] != null) { flashVarString = flashVarString + "&movable=" + flashVars["movable"]; }   if (flashVars["links"] != null) { flashVarString = flashVarString + "&links=" + flashVars["links"]; }   if (flashVars["linksinnewwindow"] != null) { flashVarString = flashVarString + "&linksInNewWindow=" + flashVars["linksinnewwindow"]; }   if (flashVars["viewport"] != null) { flashVarString = flashVarString + "&viewport=" + flashVars["viewport"]; }   if (flashVars["scrollbars"] != null) { flashVarString = flashVarString + "&scrollbars=" + flashVars["scrollbars"]; }   if (flashVarString.length > 0) { ret["flashvars"] = flashVarString.substring(1, flashVarString.length); } }  if (!ret["width"]) { ret["width"] = "100%"; } if (!ret["height"]) { ret["height"] = "100%"; } if (!ret["id"]) { ret["id"] = "1"; } return ret; }

////////////////// Mouse wheel stuff //////////////////////

// create unique namespace if(typeof eb == "undefined" || !eb)	eb = {};

var userAgent = navigator.userAgent.toLowerCase; eb.platform = { win:/win/.test(userAgent), mac:/mac/.test(userAgent) }; eb.browser = { version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1], safari: /webkit/.test(userAgent), opera: /opera/.test(userAgent), msie: /msie/.test(userAgent) && !/opera/.test(userAgent), mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent), chrome: /chrome/.test(userAgent) };

function isHovering(evt) { var r = false; var elem = evt.srcElement ? evt.srcElement : evt.target; if( null != elem ) { var nodeName = elem.nodeName.toLowerCase; if (( nodeName == "object" && elem.getAttribute("classid").toLowerCase == "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000") ||	       (nodeName == "embed" && elem.getAttribute("type") == "application/x-shockwave-flash")) { r = true; }   }    return r; }

function onMouseWheel(evt) { evt = evt? evt : window.event; if (isHovering(evt)) { return handleMouseWheel(evt); } return true; }

function handleMouseWheel(evt) { evt = evt ? evt : window.event; if (evt.stopPropagation) { evt.stopPropagation; }   if (evt.preventDefault) { evt.preventDefault; }   evt.cancelBubble = true; evt.cancel = true; evt.returnValue = false; var elem = evt.srcElement ? evt.srcElement : evt.target; if (evt.wheelDelta)       delta = evt.wheelDelta / (eb.browser.opera ? 12 : 120); else if (evt.detail)       delta = -evt.detail; if (eb.platform.mac && elem.externalMouseEvent) elem.externalMouseEvent(delta); return false; } var initialized = false;

function initMouseWheel { if (!initialized) { if (window.addEventListener) { window.addEventListener('DOMMouseScroll', onMouseWheel, false); }   window.onmousewheel = document.onmousewheel = onMouseWheel; initialized = true; } }

// JavaScript helper required to detect Flash Player PlugIn version information function GetSwfVer { // NS/Opera version >= 3 check for Flash plugin in plugin array var flashVer = -1;

if (navigator.plugins != null && navigator.plugins.length > 0) { if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) { var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";     var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description; var descArray = flashDescription.split(" "); var tempArrayMajor = descArray[2].split("."); var versionMajor = tempArrayMajor[0]; var versionMinor = tempArrayMajor[1]; var versionRevision = descArray[3]; if (versionRevision == "") { versionRevision = descArray[4]; }     if (versionRevision[0] == "d") { versionRevision = versionRevision.substring(1); } else if (versionRevision[0] == "r") { versionRevision = versionRevision.substring(1); if (versionRevision.indexOf("d") > 0) { versionRevision = versionRevision.substring(0, versionRevision.indexOf("d")); }     }      flashVer = versionMajor + "." + versionMinor + "." + versionRevision; } }  // MSN/WebTV 2.6 supports Flash 4 else if (navigator.userAgent.toLowerCase.indexOf("webtv/2.6") != -1) flashVer = 4; // WebTV 2.5 supports Flash 3 else if (navigator.userAgent.toLowerCase.indexOf("webtv/2.5") != -1) flashVer = 3; // older WebTV supports Flash 2 else if (navigator.userAgent.toLowerCase.indexOf("webtv") != -1) flashVer = 2; else if (isIE && isWin && !isOpera) { flashVer = ControlVersion; } return flashVer; }

function ControlVersion {	var version; var axo; var e;

// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry

try { // version will be set for 7.X or greater players axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7"); version = axo.GetVariable("$version"); } catch (e) { }

if (!version) {		try { // version will be set for 6.X players only axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");

// installed player is some revision of 6.0 // GetVariable("$version") crashes for versions 6.0.22 through 6.0.29, // so we have to be careful.

// default to the first public version version = "WIN 6,0,21,0";

// throws if AllowScripAccess does not exist (introduced in 6.0r47) axo.AllowScriptAccess = "always";

// safe to call for 6.0r47 or greater version = axo.GetVariable("$version");

} catch (e) { }	}

if (!version) {		try { // version will be set for 4.X or 5.X player axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3"); version = axo.GetVariable("$version"); } catch (e) { }	}

if (!version) {		try { // version will be set for 3.X player axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3"); version = "WIN 3,0,18,0"; } catch (e) { }	}

if (!version) {		try { // version will be set for 2.X player axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"); version = "WIN 2,0,0,11"; } catch (e) { version = -1; }	}

return version; }

// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision) { var versionStr = GetSwfVer; if (versionStr == -1) { return false; } else if (versionStr != 0) { if (isIE && isWin && !isOpera) { // Given "WIN 2,0,0,11" var tempArray = versionStr.split(" "); // ["WIN", "2,0,0,11"] var tempString = tempArray[1]; // "2,0,0,11"     var versionArray = tempString.split(","); // ['2', '0', '0', '11']   } else { var versionArray = versionStr.split("."); }   var versionMajor = versionArray[0]; var versionMinor = versionArray[1]; var versionRevision = versionArray[2];

// is the major.revision >= requested major.revision AND the minor version >= requested minor if (versionMajor > parseFloat(reqMajorVer)) { return true; } else if (versionMajor == parseFloat(reqMajorVer)) { if (versionMinor > parseFloat(reqMinorVer)) return true; else if (versionMinor == parseFloat(reqMinorVer)) { if (versionRevision >= parseFloat(reqRevision)) return true; }   }  }  return false; }

// Installs the latest Flash player. // Needs Flash Player 6.0.65 or later. // Returns false if the Flash player is too old or not installed. function InstallFlashUpdate {

var hasProductInstall = DetectFlashVer(6, 0, 65); if (hasProductInstall) { var params = CreateParams(arguments); var MMPlayerType = isIE ? "ActiveX" : "PlugIn"; var MMredirectURL = window.location; document.title = document.title.slice(0, 47) + " - Flash Player Installation"; var MMdoctitle = document.title; var fv = "MMredirectURL=" + MMredirectURL + '&MMplayerType=' + MMPlayerType + '&MMdoctitle=' + MMdoctitle; document.write('' +                   ' ' +                   ' ' +                   ' ' +                   ' ' +                   ' ' +                   ' ' + ' ' +                  ' ');    return true;  } else {    return false;  } }