/lenasys/0.1 : contents of svg Converter/svgconverter.js at revision 15

: (revision 15)

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		/*--------------------------------------------------------------------------------
			 AJAX Queue
		----------------------------------------------------------------------------------*/		
		var AJAXQueue = new Array;
		var AJAXServiceRunning=false;
		var AJAXReturnfunction;
		var httpAjax = false;
		function getSVG(fileName) {
			paramstr="svgname="+escape(fileName);
			AjaxService("svgtocanvas.php",paramstr,"returnedSVG");
		}
		
		/*--------------------------------------------------------------------------------
				AjaxService
				
				This is the only interface to the AJAX wrapper. This makes the ajax service 
				browser agnostic and provides a single interface for all of the services.
				
				Each service uses a different url and a different parameter layout.
								
		----------------------------------------------------------------------------------*/
		function AjaxService(servicename,serviceparam,returnfunction) {
			AJAXQueue.push(servicename);
			AJAXQueue.push(serviceparam);
			AJAXQueue.push(returnfunction);
			if( !AJAXServiceRunning ) {
				AJAXServiceRunning = true;
				AJAXReturnfunction = AJAXQueue.pop();
				var Aparam = AJAXQueue.pop();
				var Aservice = AJAXQueue.pop();
				AjaxServiceExec( Aservice, Aparam );
			}				
		}
		
		/*--------------------------------------------------------------------------------
				AjaxService
				
				This is the only interface to the AJAX wrapper. This makes the ajax service 
				browser agnostic and provides a single interface for all of the services.
				
				Each service uses a different url and a different parameter layout.
								
		----------------------------------------------------------------------------------*/
		function AjaxServiceExec(servicename, serviceparam) {
		// Parameters are set, initiate AJAX engine
			if( window.XMLHttpRequest ) {
				httpAjax = new XMLHttpRequest();
				if( httpAjax.overrideMimeType ) {
					httpAjax.overrideMimeType( 'text/xml' );
				}
			} else if ( window.ActiveXObject ) {
				try{
					httpAjax = new ActiveXObject( "Msxml2.XMLHTTP" );
				} catch(e) {
					try {
						httpAjax = new ActiveXObject( "Microsoft.XMLHTTP" );
					} catch(e) {
						alert( "CouldnŽt build an AJAX instance." );
						return false;
					}
				}
			}
			// Send request to Server and initiate callback.
			try{
				httpAjax.onreadystatechange = getPage;
		    } 
			catch(e) {
				alert( "onreadystatechange didnŽt go well!" );
				return false;
			} 
			try{
				httpAjax.open( 'POST', servicename, true );
				httpAjax.setRequestHeader( "Content-Type", "application/x-www-form-urlencoded;" );
		    } 
			catch(e) {
				alert( "CouldnŽt open url." );
				return false;
		    } 
			try{
				httpAjax.send( serviceparam );				
		    } 
			catch(e) {
				alert( "CouldnŽt send request." );
				return false;
			}
			return true;
		}
		
		/*--------------------------------------------------------------------------------
				getPage

				This is the AJAX callback function. It detects the invoking service and handles
				the reply from each service accordingly.				
								
		----------------------------------------------------------------------------------*/

	function getPage() {				
		if(httpAjax.readyState == 4) {
			tr = httpAjax.responseText;
			eval( AJAXReturnfunction + '(tr);' );
				if( AJAXQueue.length > 0 ) {
					AJAXReturnfunction = AJAXQueue.pop();
					var Aparam = AJAXQueue.pop();
					var Aservice = AJAXQueue.pop();
					AjaxServiceExec( Aservice, Aparam );
				} else {
					AJAXServiceRunning = false;				
				}
				return true;				
		} else {
	  		// If any other ready state than prepared, do nothing!
	  }
	}
	
	
	function returnedSVG( htmltext ) {
		var conto = document.getElementById( 'content' );
		conto.innerHTML = htmltext;
		str = 'var acanvas=document.getElementById("previewCanvas");acanvas.width=700;var c=acanvas.getContext("2d");' + htmltext;
		eval(str);
	}



1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	1	/*--------------------------------------------------------------------------------
	2	AJAX Queue
	3	----------------------------------------------------------------------------------*/
	4	var AJAXQueue = new Array;
	5	var AJAXServiceRunning=false;
	6	var AJAXReturnfunction;
	7	var httpAjax = false;
	8	function getSVG(fileName) {
9.1.1 by a11vikob Changed directory structure of SVG-converter.	9	paramstr="svgname="+escape(fileName);
	10	AjaxService("svgtocanvas.php",paramstr,"returnedSVG");
	11	}
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	12
4.5.2 by mattman-03 Städat färdigt	13	/*--------------------------------------------------------------------------------
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	14	AjaxService
	15
	16	This is the only interface to the AJAX wrapper. This makes the ajax service
	17	browser agnostic and provides a single interface for all of the services.
	18
	19	Each service uses a different url and a different parameter layout.
	20
	21	----------------------------------------------------------------------------------*/
	22	function AjaxService(servicename,serviceparam,returnfunction) {
4.5.2 by mattman-03 Städat färdigt	23	AJAXQueue.push(servicename);
	24	AJAXQueue.push(serviceparam);
	25	AJAXQueue.push(returnfunction);
	26	if( !AJAXServiceRunning ) {
	27	AJAXServiceRunning = true;
	28	AJAXReturnfunction = AJAXQueue.pop();
	29	var Aparam = AJAXQueue.pop();
	30	var Aservice = AJAXQueue.pop();
	31	AjaxServiceExec( Aservice, Aparam );
	32	}
	33	}
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	34
4.5.2 by mattman-03 Städat färdigt	35	/*--------------------------------------------------------------------------------
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	36	AjaxService
	37
	38	This is the only interface to the AJAX wrapper. This makes the ajax service
	39	browser agnostic and provides a single interface for all of the services.
	40
	41	Each service uses a different url and a different parameter layout.
	42
	43	----------------------------------------------------------------------------------*/
	44	function AjaxServiceExec(servicename, serviceparam) {
9.1.1 by a11vikob Changed directory structure of SVG-converter.	45	// Parameters are set, initiate AJAX engine
4.5.2 by mattman-03 Städat färdigt	46	if( window.XMLHttpRequest ) {
	47	httpAjax = new XMLHttpRequest();
	48	if( httpAjax.overrideMimeType ) {
	49	httpAjax.overrideMimeType( 'text/xml' );
	50	}
	51	} else if ( window.ActiveXObject ) {
	52	try{
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	53	httpAjax = new ActiveXObject( "Msxml2.XMLHTTP" );
4.5.2 by mattman-03 Städat färdigt	54	} catch(e) {
	55	try {
	56	httpAjax = new ActiveXObject( "Microsoft.XMLHTTP" );
	57	} catch(e) {
	58	alert( "CouldnŽt build an AJAX instance." );
	59	return false;
	60	}
	61	}
	62	}
	63	// Send request to Server and initiate callback.
	64	try{
	65	httpAjax.onreadystatechange = getPage;
	66	}
	67	catch(e) {
9.1.1 by a11vikob Changed directory structure of SVG-converter.	68	alert( "onreadystatechange didnŽt go well!" );
4.5.2 by mattman-03 Städat färdigt	69	return false;
	70	}
	71	try{
	72	httpAjax.open( 'POST', servicename, true );
	73	httpAjax.setRequestHeader( "Content-Type", "application/x-www-form-urlencoded;" );
	74	}
	75	catch(e) {
9.1.1 by a11vikob Changed directory structure of SVG-converter.	76	alert( "CouldnŽt open url." );
4.5.2 by mattman-03 Städat färdigt	77	return false;
	78	}
	79	try{
	80	httpAjax.send( serviceparam );
	81	}
	82	catch(e) {
9.1.1 by a11vikob Changed directory structure of SVG-converter.	83	alert( "CouldnŽt send request." );
4.5.2 by mattman-03 Städat färdigt	84	return false;
	85	}
	86	return true;
	87	}
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	88
4.5.2 by mattman-03 Städat färdigt	89	/*--------------------------------------------------------------------------------
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	90	getPage
	91
	92	This is the AJAX callback function. It detects the invoking service and handles
	93	the reply from each service accordingly.
	94
	95	----------------------------------------------------------------------------------*/
	96
	97	function getPage() {
4.5.2 by mattman-03 Städat färdigt	98	if(httpAjax.readyState == 4) {
9.1.1 by a11vikob Changed directory structure of SVG-converter.	99	tr = httpAjax.responseText;
4.5.2 by mattman-03 Städat färdigt	100	eval( AJAXReturnfunction + '(tr);' );
9.1.1 by a11vikob Changed directory structure of SVG-converter.	101	if( AJAXQueue.length > 0 ) {
4.5.2 by mattman-03 Städat färdigt	102	AJAXReturnfunction = AJAXQueue.pop();
	103	var Aparam = AJAXQueue.pop();
	104	var Aservice = AJAXQueue.pop();
	105	AjaxServiceExec( Aservice, Aparam );
	106	} else {
	107	AJAXServiceRunning = false;
	108	}
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	109	return true;
	110	} else {
4.11.2 by a11patfr at his Fixed formatting. trunk/svg Converter/SVG_httpAjax.js	111	// If any other ready state than prepared, do nothing!
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	112	}
	113	}
	114
4.5.2 by mattman-03 Städat färdigt	115
	116	function returnedSVG( htmltext ) {
	117	var conto = document.getElementById( 'content' );
	118	conto.innerHTML = htmltext;
	119	str = 'var acanvas=document.getElementById("previewCanvas");acanvas.width=700;var c=acanvas.getContext("2d");' + htmltext;
	120	eval(str);
	121	}
	122
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	123