/*
* Copyright (c) 2008 Nikolai Pilafov. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* deployChessViewer.js
*
* It provides functions for dynamic creation of a chess viewer instance
* for displaying chess data contained on the Web.
*
* The "live" copy of this file may be found at
* http://chesstuff.110mb.com/cvd/deployChessViewer.js
* You are encouraged to link directly to the live copy of the file.
*
* @version @(#)deployChessViewer.js 1.6 03/16/2009
*/
/**
* Outputs an applet tag with the specified attributes and parameters, where both attributes and
* parameters are associative arrays. Each key/value pair in attributes becomes an attribute of
* the applet tag itself, while key/value pairs in parameters become tags.
*
* e.g. makeChessApplet(url, {PuzzleMode: "on", DarkSquares: "AA3399"});
* makeChessApplet(url, null, { border: 4 });
*/
if ( typeof oCV_Publish == "undefined" ) {
var oCV_Publish = new Object();
oCV_Publish.PGN_Data = new Array();
oCV_Publish.PGN_Index = 0;
}
var CHESS_VIEWER_SERVER = "http://chesstuff.110mb.com/",
JAVA_MIME_TYPE = "application/x-java-applet";
oCV_Publish.createObjParam = function ( el, pName, pValue ) {
if ( this.useOldWebKit ) {
// Older webkit engines ignore the PARAM elements inside the OBJECT element, so
// we have to fall back to the proprietary EMBED element
el.setAttribute ( pName, pValue );
return;
}
// Well-behaving browsers
var p = document.createElement ( "PARAM" );
p.setAttribute ( "name", pName );
p.setAttribute ( "value", pValue );
el.appendChild ( p );
}
/**
* Charset (Java Platform SE 6)
* http://java.sun.com/javase/6/docs/api/java/nio/charset/Charset.html
*
* Special Edition Using Java 1.1
* http://docs.rinet.ru/UJ11/ch16.htm
*/
/**
* Cross-browser dynamic Applet element creation
*/
function createAppletElement ( oElem, pageUrl, paramObj, attribObj ) {
var idStr, styleStr, sEncode, sTemp, o;
styleStr = ( oElem.style.cssText.length > 0 ) ? oElem.style.cssText : "";
if ( attribObj == 'undefined' || attribObj == null )
attribObj = new Object();
attribObj.id = oElem.getAttribute ( 'id' );
attribObj.width = "631";
attribObj.height = "560";
attribObj.standby = "Loading Chess Viewer Deluxe...";
idStr = oElem.getAttribute ( 'seqno' );
idStr = ( idStr != null && idStr.length > 0 ) ? ( "&id=" + idStr ) : "";
if ( paramObj == 'undefined' || paramObj == null )
paramObj = new Object();
paramObj.archive = 'Viewer-Deluxe.jar';
paramObj.code = 'ChessBoard.class';
paramObj.codebase_lookup = 'false';
if ( pageUrl != null ) {
paramObj.codebase = CHESS_VIEWER_SERVER + 'olympics/bin';
paramObj.PgnGameFile = CHESS_VIEWER_SERVER + "cvd/pgn-proxy.php?url=" + encodeURI ( pageUrl ) + "&tag=s" + idStr;
} else {
paramObj.codebase = 'http://chesstuff.googlecode.com/svn/bin/';
paramObj.PgnGameFile = "javascript: oCV_Publish.getPgnData ( " + ( oCV_Publish.PGN_Index - 1 ) + " )";
}
paramObj.ImagesFolder = 'images';
paramObj.MayScript = 'on';
if ( typeof paramObj.Encoding == 'undefined' ) {
if ( typeof document.charset != 'undefined' )
sEncode = document.charset; // IE
else
if ( typeof document.characterSet != 'undefined' )
sEncode = document.characterSet; // Gecko
sEncode = sEncode.toUpperCase();
if ( sEncode == "UTF-8" )
paramObj.Encoding = sEncode;
else
sEncode = "";
} else
sEncode = "";
// Proprietary feature detection (conditional compiling) is used to detect IE's features
/*@cc_on
if ( !oCV_Publish.isJavaPluginSupported() ) {
// Since nothing else is available we might as well try MS-Java
sTemp = "08B0E5C0-4FCB-11CF-AAA5-00401C608501"; // ClassID of MS-Java
if ( sEncode != "" )
paramObj.Encoding = "UTF8";
} else
sTemp = "8AD9C840-044E-11D1-B3E9-00805F499D93"; // ClassID of Java Plug-in
// IE, the object element and W3C DOM methods do not combine: fall back to outerHTML
sTemp = '";
return;
@*/
if ( typeof oCV_Publish.useOldWebKit != "boolean" ) {
var u = navigator.userAgent.toLowerCase();
// User agent string detection is only used when no alternative is possible
if ( /webkit/.test ( u ) )
// Compare the webkit version to a known good one
oCV_Publish.useOldWebKit = ( parseFloat ( u.replace ( /^.*webkit\/(\d+(\.\d+)?).*$/, "$1" ) ) < 312 );
else
oCV_Publish.useOldWebKit = false;
}
o = document.createElement ( oCV_Publish.useOldWebKit ?
// Older webkit engines ignore the PARAM elements inside the OBJECT element, so
// we have to fall back to the proprietary EMBED element
"EMBED" :
// Well-behaving browsers
"OBJECT" );
o.setAttribute ( "type", JAVA_MIME_TYPE );
o.style.cssText = styleStr;
for ( var attribute in attribObj )
o.setAttribute ( attribute, attribObj[attribute] );
for ( var parameter in paramObj )
oCV_Publish.createObjParam ( o, parameter, paramObj[parameter] );
/*
oTxt = document.createTextNode ( "Created using " + o.tagName + " element." );
oElem.parentNode.appendChild ( oTxt );
oElem.parentNode.style.border = "3px solid #7C5DD5";
*/
oElem.parentNode.replaceChild ( o, oElem );
}
oCV_Publish.isJavaPluginSupported = function () {
if ( typeof this.usePlugin != "boolean" )
try {
this.usePlugin = ( new ActiveXObject ( "JavaPlugin" ) != null );
} catch (exception) {
this.usePlugin = false;
}
return this.usePlugin;
}
oCV_Publish.getPgnData = function ( sParm ) {
return this.PGN_Data[parseInt(sParm)];
}
function createAppletTag ( pageUrl, idStr, paramObj, attribObj ) {
var sTemp;
sTemp = "\n";
sTemp += "\n";
sTemp += "\n";
if ( paramObj != null ) {
var codebaseParam = false;
for ( var parameter in paramObj ) {
if ( parameter == 'codebase_lookup' )
codebaseParam = true;
sTemp += '\n';
}
if ( !codebaseParam )
sTemp += '\n';
}
sTemp += "\n";
return sTemp;
}
function makeChessApplet ( urlParm, parameters, attributes, useWrite ) {
var oScript, sTemp, sId;
// we must be called from inside of the very latest SCRIPT element
sTemp = document.getElementsByTagName ( 'SCRIPT' );
oScript = sTemp[sTemp.length - 1];
if ( oScript.innerHTML.length > 0 ) {
var strUrl;
// if the first parameter is a string we enclose it in quotes
strUrl = ( urlParm != null ) ? '"' + urlParm + '"' : 'null';
sTemp = oScript.innerHTML.match ( /makeChessApplet\s*\(\s*(\S+?)[\s,\)]/ );
sId = oScript.getAttribute ( 'id' );
if ( sTemp == null || sTemp[1] != strUrl || sId == null || sId != 'oChessViewer' ) {
oScript = null;
}
} else
oScript = null;
if ( oScript == null ) {
alert ( "Unable to properly indentify the corresponding SCRIPT element !" );
return;
}
if ( urlParm == null ) {
var sText = oScript.innerHTML;
sTemp = sText.indexOf ( "[CDATA[" );
if ( sTemp == -1 )
sTemp = sText.indexOf ( "/*" ) + 2;
else
sTemp += 7;
sText = sText.substr ( sTemp );
sText = sText.substr ( 0, sText.lastIndexOf ( "*/" ) );
sText = sText.replace ( /\ /ig, "\n" ); // caused by the blogspot Post Editor
oCV_Publish.PGN_Data[oCV_Publish.PGN_Index++] = sText;
}
if ( useWrite == 'applet' ) {
sTemp = createAppletTag ( urlParm, sId, parameters, attributes );
document.write ( sTemp );
/*
sTemp = sTemp.replace ( //g, ">" );
document.write ( '