// // jsrsClient.js - javascript remote scripting client include // // Author: Brent Ashley [jsrs@megahuge.com] // // make asynchronous remote calls to server without client page refresh // // see license.txt for copyright and license information /* see history.txt for full history 2.0 26 Jul 2001 - added POST capability for IE/MOZ */ // callback pool needs global scope var jsrsContextPoolSize = 0; var jsrsContextMaxPool = 10; var jsrsContextPool = new Array(); var jsrsBrowser = jsrsBrowserSniff(); var jsrsPOST = true; // constructor for context object function jsrsContextObj( contextID ){ // properties this.id = contextID; this.busy = true; this.callback = null; this.container = contextCreateContainer( contextID ); // methods //this.GET = contextGET; this.POST = contextPOST; this.getPayload = contextGetPayload; this.setVisibility = contextSetVisibility; } // method functions are not privately scoped // because Netscape's debugger chokes on private functions function contextCreateContainer( containerName ){ // creates hidden container to receive server data var container; switch( jsrsBrowser ) { case 'NS': container = new Layer(100); container.name = containerName; container.visibility = 'hidden'; container.clip.width = 100; container.clip.height = 100; break; case 'IE': document.body.insertAdjacentHTML( "afterBegin", '' ); var span = document.all( "SPAN" + containerName ); var html = ''; span.innerHTML = html; span.style.display = 'none'; if (document.frames) { container = document.frames[containerName]; } else { container = window.frames[containerName]; } break; case 'MOZ': var span = document.createElement('SPAN'); span.id = "SPAN" + containerName; document.body.appendChild( span ); var iframe = document.createElement('IFRAME'); iframe.name = containerName; iframe.id = containerName; iframe.src="blank.html"; span.appendChild( iframe ); container = iframe; break; } return container; } var the_rspage, the_func, the_parms, the_contextObj; function ThePost(){ the_contextObj.POST( the_rspage, the_func, the_parms ); } function contextPOST( rsPage, func, parms ){ var d = new Date(); var unique = d.getTime() + '' + Math.floor(1000 * Math.random()); var doc = (this.container.contentDocument) ? this.container.contentDocument : this.container.document; //if (document.getElementById) doc = document.getElementById(this.container.id).contentDocument; //alert(this.container.id); //doc = document.getElementById(this.container.id).contentDocument; //var contenuto = ''; //for (var i in doc ) contenuto+= i + '----\n'; //alert(contenuto); /*if (contenuto=='') { the_rspage = rsPage; the_func = func; the_parms = parms; the_contextObj = this; setTimeout("ThePost()",100); }*/ doc.open(); doc.write(''); doc.write(''); doc.close(); //alert(doc.body.innerHTML); doc.forms['jsrsForm'].submit(); } /* function contextGET( rsPage, func, parms ){ // build URL to call var URL = rsPage; // always send context URL += "?C=" + this.id; // func and parms are optional if (func != null){ URL += "&F=" + escape(func); if (parms != null){ if (typeof(parms) == "string"){ // single parameter URL += "&P0=[" + escape(parms+'') + "]"; } else { // assume parms is array of strings for( var i=0; i < parms.length; i++ ){ URL += "&P" + i + "=[" + escape(parms[i]+'') + "]"; } } // parm type } // parms } // func // unique string to defeat cache var d = new Date(); URL += "&U=" + d.getTime(); //alert(URL); // make the call switch( jsrsBrowser ) { case 'NS': this.container.src = URL; break; case 'IE': this.container.document.location.replace(URL); break; case 'MOZ': this.container.src = ''; this.container.src = URL; break; } } */ function contextGetPayload(){ switch( jsrsBrowser ) { case 'NS': return this.container.document.forms['jsrs_Form'].elements['jsrs_Payload'].value; case 'IE': return this.container.document.forms['jsrs_Form']['jsrs_Payload'].value; case 'MOZ': return window.frames[this.container.name].document.forms['jsrs_Form']['jsrs_Payload'].value; } } function contextSetVisibility( vis ){ switch( jsrsBrowser ) { case 'NS': this.container.visibility = (vis)? 'show' : 'hidden'; break; case 'IE': document.all("SPAN" + this.id ).style.display = (vis)? '' : 'none'; break; case 'MOZ': document.getElementById("SPAN" + this.id).style.visibility = (vis)? '' : 'hidden'; this.container.width = (vis)? 250 : 0; this.container.height = (vis)? 100 : 0; break; } } // end of context constructor function jsrsGetContextID(){ var contextObj; for (var i = 1; i <= jsrsContextPoolSize; i++){ contextObj = jsrsContextPool[ 'jsrs' + i ]; if ( !contextObj.busy ){ contextObj.busy = true; return contextObj.id; } } // if we got here, there are no existing free contexts if ( jsrsContextPoolSize <= jsrsContextMaxPool ){ // create new context var contextID = "jsrs" + (jsrsContextPoolSize + 1); jsrsContextPool[ contextID ] = new jsrsContextObj( contextID ); jsrsContextPoolSize++; return contextID; } else { alert( "jsrs Error: context pool full" ); return null; } } function jsrsExecute( rspage, callback, func, parms, visibility ){ // call a server routine from client code // // rspage - href to asp file // callback - function to call on return // or null if no return needed // (passes returned string to callback) // func - sub or function name to call // parm - string parameter to function // or array of string parameters if more than one // visibility - optional boolean to make container visible for debugging // get context var contextObj = jsrsContextPool[ jsrsGetContextID() ]; contextObj.callback = callback; var vis = (visibility == null)? false : visibility; contextObj.setVisibility( vis ); if ( jsrsPOST ) { switch( jsrsBrowser ) { case 'NS': jsrsError( contextObj.id, "FUNZIONALITA' NON SUPPORTATA!" ) //contextObj.GET( rspage, func, parms ); break; case 'IE': contextObj.POST( rspage, func, parms ); break; case 'MOZ': the_rspage = rspage; the_func = func; the_parms = parms; the_contextObj = contextObj; setTimeout("ThePost()",100); break; default : jsrsError( contextObj.id, "FUNZIONALITA' NON SUPPORTATA!" ) //contextObj.GET( rspage, func, parms ); break; } return contextObj.id; } else { //contextObj.GET( rspage, func, parms ); jsrsError( contextObj.id, "FUNZIONALITA' NON SUPPORTATA!" ) } //return contextObj.id; } function jsrsLoaded( contextID ){ // get context object and invoke callback var contextObj = jsrsContextPool[ contextID ]; if( contextObj.callback != null){ contextObj.callback( jsrsUnescape( contextObj.getPayload() ), contextID ); } // clean up and return context to pool contextObj.callback = null; contextObj.busy = false; if ( (contextObj.debug != true) && (jsrsBrowser == 'IE') ) contextObj.container.location = 'about:blank'; } function jsrsError( contextID, str ){ alert( unescape(str) ); jsrsContextPool[ contextID ].busy = false } function jsrsEscapeQQ( thing ){ //thing = thing.replace(/\&/g, "&"); //thing = thing.replace(/\-/g, "–"); //thing = thing.replace(/\-/g, "—"); thing = thing.replace(/\¡/g, "¡"); thing = thing.replace(/\¢/g, "¢"); thing = thing.replace(/\£/g, "£"); thing = thing.replace(/\¤/g, "¤"); thing = thing.replace(/\¥/g, "¥"); //thing = thing.replace(/\¦/g, "¦"); thing = thing.replace(/\§/g, "§"); thing = thing.replace(/\¨/g, "¨"); thing = thing.replace(/\©/g, "©"); thing = thing.replace(/\ª/g, "ª"); thing = thing.replace(/\¬/g, "¬"); //thing = thing.replace(/\/g, ""); thing = thing.replace(/\®/g, "®"); //thing = thing.replace(/\¯/g, "¯"); thing = thing.replace(/\°/g, "°"); thing = thing.replace(/\±/g, "±"); thing = thing.replace(/\¹/g, "¹"); thing = thing.replace(/\²/g, "²"); thing = thing.replace(/\³/g, "³"); thing = thing.replace(/\¼/g, "¼"); thing = thing.replace(/\½/g, "½"); thing = thing.replace(/\¾/g, "¾"); //thing = thing.replace(/\´/g, "´"); thing = thing.replace(/\µ/g, "µ"); thing = thing.replace(/\¶/g, "¶"); //thing = thing.replace(/\·/g, "·"); thing = thing.replace(/\¸/g, "¸"); thing = thing.replace(/\º/g, "º"); thing = thing.replace(/\¿/g, "¿"); thing = thing.replace(/\À/g, "À"); thing = thing.replace(/\Á/g, "Á"); thing = thing.replace(/\Â/g, "Â"); thing = thing.replace(/\Ã/g, "Ã"); thing = thing.replace(/\Ä/g, "Ä"); thing = thing.replace(/\Å/g, "Å"); thing = thing.replace(/\Æ/g, "Æ"); thing = thing.replace(/\à/g, "à"); thing = thing.replace(/\á/g, "á"); thing = thing.replace(/\â/g, "â"); thing = thing.replace(/\ã/g, "ã"); thing = thing.replace(/\ä/g, "ä"); thing = thing.replace(/\å/g, "å"); thing = thing.replace(/\æ/g, "æ"); thing = thing.replace(/\È/g, "È"); thing = thing.replace(/\È/g, "É"); thing = thing.replace(/\Ê/g, "Ê"); thing = thing.replace(/\Ë/g, "Ë"); thing = thing.replace(/\è/g, "è"); thing = thing.replace(/\è/g, "é"); thing = thing.replace(/\ê/g, "ê"); thing = thing.replace(/\ë/g, "ë"); thing = thing.replace(/\Ì/g, "Ì"); thing = thing.replace(/\Í/g, "Í"); thing = thing.replace(/\Î/g, "Î"); thing = thing.replace(/\Ï/g, "Ï"); thing = thing.replace(/\ì/g, "ì"); thing = thing.replace(/\í/g, "í"); thing = thing.replace(/\î/g, "î"); thing = thing.replace(/\ï/g, "ï"); thing = thing.replace(/\Ò/g, "Ò"); thing = thing.replace(/\Ó/g, "Ó"); thing = thing.replace(/\Ô/g, "Ô"); thing = thing.replace(/\Õ/g, "Õ"); thing = thing.replace(/\Ö/g, "Ö"); thing = thing.replace(/\ò/g, "ò"); thing = thing.replace(/\ó/g, "ó"); thing = thing.replace(/\ô/g, "ô"); thing = thing.replace(/\õ/g, "õ"); thing = thing.replace(/\ö/g, "ö"); thing = thing.replace(/\Ù/g, "Ù"); thing = thing.replace(/\Ú/g, "Ú"); thing = thing.replace(/\Û/g, "Û"); thing = thing.replace(/\Ü/g, "Ü"); thing = thing.replace(/\ù/g, "ù"); thing = thing.replace(/\ú/g, "ú"); thing = thing.replace(/\û/g, "û"); thing = thing.replace(/\ü/g, "ü"); thing = thing.replace(/\Ç/g, "Ç"); thing = thing.replace(/\ç/g, "ç"); thing = thing.replace(/\Ý/g, "Ý"); thing = thing.replace(/\ý/g, "ý"); thing = thing.replace(/\ÿ/g, "ÿ"); thing = thing.replace(/\Þ/g, "Þ"); thing = thing.replace(/\þ/g, "þ"); thing = thing.replace(/\Ñ/g, "Ñ"); thing = thing.replace(/\ñ/g, "ñ"); thing = thing.replace(/\Ð/g, "Ð"); thing = thing.replace(/\ð/g, "ð"); thing = thing.replace(/\Ø/g, "Ø"); thing = thing.replace(/\ø/g, "ø"); thing = thing.replace(/\×/g, "×"); thing = thing.replace(/\÷/g, "÷"); thing = thing.replace(/\ß/g, "ß"); thing = thing.replace(/\™/g, "™"); thing = thing.replace(/\„/g, "&bdquo;"); thing = thing.replace(/\†/g, "&dagger;"); thing = thing.replace(/\‡/g, "&Dagger;"); thing = thing.replace(/\‰/g, "&permil;"); //thing = thing.replace(/\‹/g, "&lsaquo;"); //thing = thing.replace(/\›/g, "&rsaquo;"); thing = thing.replace(/\«/g, "«"); thing = thing.replace(/\»/g, "»"); thing = thing.replace(/\€/g, "€"); //thing = thing.replace(/"/g,'"'); return thing.replace(/"/g,'"'); } function jsrsUnescape( str ){ // payload has slashes escaped with whacks return str.replace( /\\\//g, "/" ); } function jsrsBrowserSniff(){ if (document.layers) return "NS"; if (document.all) return "IE"; if (document.getElementById) return "MOZ"; return "OTHER"; } ///////////////////////////////////////////////// // // user functions function jsrsArrayFromString( s, delim ){ // rebuild an array returned from server as string // optional delimiter defaults to ~ var d = (delim == null)? '~' : delim; return s.split(d); } function jsrsDebugInfo(){ // use for debugging by attaching to f1 (works with IE) // with onHelp = "return jsrsDebugInfo();" in the body tag var doc = window.open().document; doc.open; doc.write( 'Pool Size: ' + jsrsContextPoolSize + '
' ); for( var i in jsrsContextPool ){ var contextObj = jsrsContextPool[i]; doc.write( '
' + contextObj.id + ' : ' + (contextObj.busy ? 'busy' : 'available') + '
'); doc.write( contextObj.container.document.location.pathname + '
'); doc.write( contextObj.container.document.location.search + '
'); doc.write( '
' + contextObj.container.document.body.innerHTML + '
' ); } doc.write(''); doc.close(); return false; }