<?php
# ContactAtOnce Presence Icon Extension
$wgExtensionFunctions[] = "ContactAtOncePresenceExtension";
 
function ContactAtOncePresenceExtension() {
    global $wgParser;
    $wgParser->setHook( "ContactAtOncePresence", "RenderPresence" );
}
 
function RenderPresence( $input, $argv ) {
        # Build HTML tag to include ContactAtOnce presence icon image and code for launching conversation.
        # Expected arguments are MerchantId, ProviderId and PlacementId
    # <ContactAtOncePresence MerchantId="10" ProviderId="17" PlacementId="1"></ContactAtOncePresence>   
        $output .= "<A onclick=\"javascript:window.open('http://applications.contactatonce.com/caoclientcontainer.aspx?";
    $output .= "MerchantId=" . $argv["merchantid"];
    $output .= "&ProviderId=" . $argv["providerid"];
    if (isset($argv['placementid']))
    {
                $output .= "&PlacementId=" . $argv["placementid"];
    }
    $output .= "&OriginationUrl='+encodeURIComponent(location.href),";
    $output .= "'','resizable=yes,toolbar=no,menubar=no,location=no,scrollbars=no,status=no,height=400,width=600');";
    $output .= "return false;\"";
    $output .= "href=\"#\"";
    $output .= ">";
 
    $output .= "<IMG src=\"http://applications.contactatonce.com/getagentstatusimage.aspx?";
    $output .= "MerchantId=" . $argv["merchantid"];
    $output .= "&ProviderId=" . $argv["providerid"];
    if (isset($argv['placementid']))
    {
                $output .= "&PlacementId=" . $argv["placementid"];
    }
    $output .= "\"";
    $output .= "onerror=\"this.height=0;this.width=0\" border=\"0\"";
    $output .= ">";
 
    $output .= "</A>";
    return $output;
}
?>