Mercurial > rlmcintyre

     1 #!C:/strawberry/perl/bin/perl.exe

     2 

     3 # this is an example script of how you would use coderefs to define

     4 # your CGI::Ajax functions, and the methods return multiple results to

     5 # the page

     6 #

     7 # NB The CGI::Ajax object must come AFTER the coderefs are declared.

     8 

     9 use strict;

    10 use CGI::Ajax;

    11 use CGI;

    12 

    13 my $q = new CGI;

    14 

    15 my $exported_fx = sub {

    16   my $value_a = shift;

    17   my $value_b = shift;

    18   $value_a = "" if not defined $value_a; # make sure there's def

    19   $value_b = "" if not defined $value_b; # make sure there's def

    20 

    21   if ( $value_a =~ /\D+/ or $value_a eq "" ) {

    22     return( $value_a, $value_b, 'NaN' );

    23   } elsif ( $value_b =~ /\D+/ or $value_b eq "" ) {

    24     return( $value_a, $value_b, 'NaN' );

    25   } else {

    26     # got two numbers, so lets multiply them together

    27     return( $value_a, $value_b, $value_a * $value_b );

    28   }

    29 };

    30 

    31 

    32 my $Show_Form = sub {

    33   my $html = "";

    34   $html .= <<EOT;

    35 <HTML>

    36 <HEAD><title>CGI::Ajax Multiple Return Value Example</title>

    37 </HEAD>

    38 <BODY>

    39 <form>

    40   Enter something:&nbsp;

    41   <input type="text" name="val1" id="val1" size="6" onkeyup="myfunc( ['val1','val2'], ['inputa','inputb','resultdiv'] ); return true;"><br>

    42 

    43   Enter something else:&nbsp;

    44   <input type="text" name="val2" id="val2" size="6" onkeyup="myfunc( ['val1','val2'], ['inputa','inputb','resultdiv'] ); return true;"><br>

    45 

    46     <hr>

    47     <table>

    48       <tr>

    49         <td>Input A</td>

    50         <td>Input B</td>

    51         <td>Result</td>

    52       </tr>

    53       <tr>

    54         <td>

    55           <div id="inputa" style="text-align: center; border: 1px solid black; width: 80px; height: 20px; overflow: auto"></div>

    56         </td>

    57         <td>

    58           <div id="inputb" style="text-align: center; border: 1px solid black; width: 80px; height: 20px; overflow: auto"></div>

    59         </td>

    60         <td>

    61           <div id="resultdiv" style="text-align: center; border: 1px solid black; width: 80px; height: 20px; overflow: auto"></div>

    62         </td>

    63       </tr>

    64     </table>

    65 </form>

    66 </BODY>

    67 </HTML>

    68 EOT

    69 

    70   return $html;

    71 };

    72 

    73 my $pjx = CGI::Ajax->new( 'myfunc' => $exported_fx);

    74 $pjx->JSDEBUG(1);

    75 print $pjx->build_html($q,$Show_Form); # this outputs the html for the page
author	Robert McIntyre <rlm@mit.edu>
date	Mon, 27 Sep 2010 16:57:26 -0400
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