-<%
- my ( $url, @subs ) = @_;
+<%doc>
- $url .= ( ($url =~ /\?/) ? '&' : '?' ).
- 'sub=';
+Example:
-%>
+ include( '/elements/xmlhttp.html',
+ # required
+ 'url' => $p.'misc/something.html',
+ 'subs' => [ 'subroutine' ],
+ # optional
+ 'method' => 'GET', #defaults to GET, could specify POST
+ 'key' => 'unique', #unique key
+
+ );
+
+</%doc>
+<%shared>
+my %initialized = ();#won't work if component is "preloaded"... so don't do that
+</%shared>
+<& /elements/rs_init_object.html &>
+<& /elements/init_overlib.html &>
<SCRIPT TYPE="text/javascript">
- function rs_init_object() {
- var A;
- try {
- A=new ActiveXObject("Msxml2.XMLHTTP");
- } catch (e) {
- try {
- A=new ActiveXObject("Microsoft.XMLHTTP");
- } catch (oc) {
- A=null;
- }
- }
- if(!A && typeof XMLHttpRequest != "undefined")
- A = new XMLHttpRequest();
- if (!A)
- alert("Can't create XMLHttpRequest object");
- return A;
-
- }
-
- <% foreach my $func (@subs) {
-
- my $furl = $url . uri_escape($func);
- $furl =~ s/\"/\\\\\"/; #javascript escape
-
- %>
-
- function <%=$func%>() {
- // count args; build URL
- var url = "<%=$furl%>";
- var a = <%=$func%>.arguments;
- for (var i = 0; i < a.length-1; i++)
- url = url + "&arg=" + escape(a[i]);
- url = url.replace( /[+]/g, '%2B'); // fix the unescaped plus signs
- var xmlhttp = rs_init_object();
- xmlhttp.open("GET", url, true);
- xmlhttp.onreadystatechange = function() {
- if (xmlhttp.readyState != 4)
- return;
- //rs_debug("received " + x.responseText);
-
- if (xmlhttp.status != 200) {
- alert(xmlhttp.status + " status connecting to " + url);
- } else {
+% foreach my $func ( @{$opt{'subs'}} ) {
+%
+% next if $initialized{$key.$func}++;
+%
+% my $furl = $url;
+% $furl =~ s/\"/\\\\\"/; #javascript escape (fix gvim syntax: ")
+
+ function <%$key%><%$func%>() {
+ // count args; build URL
+ var url = "<%$furl%>";
+ var a = <%$key%><%$func%>.arguments;
+
+ var args;
+ var len;
+ var content = 'sub=<% uri_escape($func) %>';
+ if ( a && typeof a == 'object' && a[0].constructor == Array ) {
+ args = a[0];
+ len = args.length
+ } else {
+ args = a;
+ len = args.length - 1;
+ }
+ for (var i = 0; i < len; i++)
+ content = content + "&arg=" + encodeURIComponent(args[i]);
+ content = content.replace( /[+]/g, '%2B'); // fix unescaped plus signs
+
+ if ( '<%$method%>' == 'GET' ) {
+ url = url + content;
+ }
+
+ //alert('<%$method%> ' + url);
+
+ var xmlhttp = rs_init_object();
+ xmlhttp.open("<%$method%>", url, true);
+
+ xmlhttp.onreadystatechange = function() {
+ if (xmlhttp.readyState != 4)
+ return;
+
+ if (xmlhttp.status != 200) {
+ if ( xmlhttp.status != 0 ) {
+ //not warning on the 0 errors, they pop up when navagating away
+ // from the page
+ alert(xmlhttp.status + " status connecting to " + url);
+ }
+ } else {
var data = xmlhttp.responseText;
- a[a.length-1](data);
+ //alert('received response: ' + data);
+ if ( data.indexOf("<b>System error</b>") > -1 ) {
+ // trim this a little
+ var end = data.indexOf('<a href="#raw">') - 1;
+ data = data.substring(0, end);
+
+ overlib(data,
+ WIDTH, 480, MIDX, 0, MIDY, 0,
+ CAPTION, 'Error', STICKY, AUTOSTATUSCAP, DRAGGABLE,
+ CLOSECLICK, BGCOLOR, '#f00', CGCOLOR, '#f00'
+ );
+ //var w;
+ //if ( w = window.open("about:blank") ) {
+ // w.document.write(data);
+ //} else {
+ // // popup blocking? should use an overlib popup instead
+ // alert("Error popup disabled; try disabling popup blocking to see");
+ //}
+ } else {
+ // invoke the callback
+ a[a.length-1](data);
+ }
}
}
- xmlhttp.send(null);
+
+ if ( '<%$method%>' == 'POST' ) {
+
+ xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+ xmlhttp.send(content);
+
+ } else {
+
+ xmlhttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
+ xmlhttp.send(null);
+
+ }
+
//rs_debug("x_$func_name url = " + url);
//rs_debug("x_$func_name waiting..");
}
+% }
- <% } %>
</SCRIPT>
+<%init>
+my ( %opt ) = @_;
+
+my $url = $opt{'url'};
+my $method = exists($opt{'method'}) ? $opt{'method'} : 'GET';
+#my @subs = @{ $opt{'subs'};
+my $key = exists($opt{'key'}) ? $opt{'key'} : '';
+
+$url .= ( ($url =~ /\?/) ? '&' : '?' )
+ if $method eq 'GET';
+
+</%init>