sintonia/htmlUI/ui_jscom.php

182 lines
5.2 KiB
PHP

<?php
/**
* @package Campcaster
* @subpackage htmlUI
*/
class jscom {
private $prefix = 'jsc_';
private $callables = array();
private $method = 'POST';
private $uri = '';
public function __construct($calls = NULL, $pars = NULL)
{
$this->uri = $_SERVER['REQUEST_URI'];
if (!is_null($calls)) {
$this->addCallables($calls);
}
if (is_array($pars)) {
foreach ($pars as $parname=>$par) {
if (!is_null($par)) {
$this->setPar($parname, $par);
}
}
}
}
function noCacheHeader ()
{
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
}
function handler()
{
$args = array();
$mode = '';
if (!empty($_GET[$this->prefix."mn"])) {
$mode = 'get';
$rqst = $_GET;
$this->noCacheHeader();
}
if (!empty($_POST[$this->prefix."mn"])) {
$mode = 'post';
$rqst = $_POST;
}
if (empty($mode)) {
return;
}
$methodName = $rqst[$this->prefix.'mn'];
$args = $rqst[$this->prefix.'args'];
if (in_array($methodName, $this->callables)) {
$res = call_user_func_array($methodName, $args);
}else{
$res = "ERROR: $methodName not callable";
}
if (is_array($res)) {
$r = array();
foreach ($res as $k=>$v) {
$r[] = "'$v'";
}
$res = "[".join(', ', $r)."]";
}
echo $res;
exit;
}
function genJsCode()
{
ob_start();
?>
var method = "<?php echo $this->method; ?>";
function createComObj() {
var co;
try{
co = new ActiveXObject("Msxml2.XMLHTTP");
}catch(err1) {
try{
co = new ActiveXObject("Microsoft.XMLHTTP");
}catch(err2) {
co = null;
}
}
if (!co && typeof XMLHttpRequest != "undefined")
co = new XMLHttpRequest();
if (!co) {
alert("Could not create connection object.");
}
return co;
}
// callbackOrId - callback function reference for processing result or html tag id to store result
function jsCom(methodName, args, callbackOrId) {
var i, n;
var comObj;
var uri;
var post_data = null;
uri = "<?php echo $this->uri; ?>";
arstr = "<?php echo$this->prefix; ?>mn="+escape(methodName);
for (i = 0; i < args.length; i++) {
arstr += "&<?php echo$this->prefix; ?>args[]=" + escape(args[i]);
}
if (method == "GET") {
uri += ((uri.indexOf("?") == -1) ? "?" : "&" ) + arstr;
uri += "&<?php echo$this->prefix; ?>x=" + new Date().getTime();
} else {
post_data = arstr;
}
comObj = createComObj();
comObj.callbackOrId = callbackOrId;
comObj.open(method, uri, true);
if (method == "POST") {
comObj.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
comObj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
}
comObj.onreadystatechange = function() {
if (comObj.readyState != 4) {
return;
}
var data = comObj.responseText;
if (typeof comObj.callbackOrId == "function") {
callbackOrId(data);
} else if (typeof comObj.callbackOrId == "object") {
eval("res="+data);
for (i = 0; i < comObj.callbackOrId.length; i++) {
setResult(comObj.callbackOrId[i], res[i])
}
} else if (typeof comObj.callbackOrId != "undefined") {
setResult(comObj.callbackOrId, data)
} else {
alert('result from server: '+data);
}
}
comObj.send(post_data);
delete comObj;
}
function setResult(id, data) {
var el = document.getElementById(id) ;
if (el.tagName == 'INPUT') { el.value = data; }
else{ el.innerHTML = data; }
}
<?php
$code = ob_get_contents();
ob_end_clean();
return $code;
}
function addCallables()
{
$n = func_num_args();
for ($i = 0; $i < $n; $i++) {
$a = func_get_arg($i);
if (is_array($a)) {
$this->callables = array_merge($this->callables, $a);
} else {
$this->callables[] = $a;
}
}
}
function setPar($parName, $value = NULL)
{
switch ($parName) {
case "method":
case "uri":
$this->{$parName} = $value;
break;
}
}
}
?>