Thread: [Dynapi-Dev] DynAPI Error Handler

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I've found a way of getting NS and IE to capture errors and allow me to
display them in a more meaningful fashion.
I've added the following method to my dynapi.js:
<tt>&nbsp;&nbsp;&nbsp; errors : [],</tt>
 <tt>&nbsp;&nbsp;&nbsp; displayerrors : true,</tt>
<tt>&nbsp;&nbsp;&nbsp; errorHandler : function (msg, url, lno) {</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DynAPI.errors[DynAPI.errors.length]
= [url,lno,msg];</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (DynAPI.loaded&amp;&amp;DynAPI.displayerrors)
alert("Error in '"+url+"'.\nLine number: "+lno+".\nMessage: "+msg);</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return true;</tt>
 <tt>&nbsp;&nbsp;&nbsp; },</tt>
 <tt>&nbsp;&nbsp;&nbsp; errorOutput : function () {</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; errWindow=window.open('','','left=50,top=50,width=560,height=430');</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; errWindow.document.writeln('&lt;html>&lt;title>Have
made an error!!!&lt;/title>&lt;B>Error Report&lt;/B>&lt;P>');</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; errWindow.document.writeln('&lt;table
width=95%>');</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (var i=0; i &lt;
DynAPI.errors.length; i++) {</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
errWindow.document.write('&lt;tr>&lt;td>');</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
if (DynAPI.errors[i][0]) errWindow.document.write("&lt;B>Error in file:&lt;/B>
&lt;a href='"+DynAPI.errors[i][0]+ "'>" DynAPI.errors[i][0] + "&lt;/a>&lt;br>");</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
if (DynAPI.errors[i][1]) errWindow.document.write("&lt;B>Line number:&lt;/B>
" + DynAPI.errors[i][1] + "&lt;br>");</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
if (DynAPI.errors[i][2]) errWindow.document.write("&lt;B>Message:&lt;/B>
&lt;pre>" + DynAPI.errors[i][2] + "&lt;/pre>");</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
errWindow.document.writeln('&lt;/td>&lt;/tr>');</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; };</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; errWindow.document.writeln('&lt;/table>');</tt>
 <tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; errWindow.document.close();</tt>
 <tt>&nbsp;&nbsp;&nbsp; },</tt>
the following line has been added to the end of the loadhandler:
<tt>&nbsp;&nbsp;&nbsp; if (DynAPI.errors.length&amp;&amp;DynAPI.displayerrors)
DynAPI.errorOutput();</tt>
the following line has been added to the end of dynapi.js:
onerror = DynAPI.errorHandler;
this means that all the lines in the API that previosly used alerts
to display errors can now use:
 <tt>&nbsp;&nbsp;&nbsp; DynAPI.errorHandler(null,null,"The following
package could not be loaded: &lt;b>"+src+"&lt;/b> \nMake sure you specified
the correct path.");</tt>
--
 Michael Pemberton
 mp...@ph...
 ICQ: 12107010
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Thread: [Dynapi-Dev] DynAPI Error Handler

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