[Phpfreechat-svn] SF.net SVN: phpfreechat: [1073] branches/pfc-comet/misc/comet-tests
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[Phpfreechat-svn] SF.net SVN: phpfreechat: [1073] branches/pfc-comet/misc/comet-tests
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From: <ke...@us...> - 2007-08-01 20:06:52
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Revision: 1073
http://phpfreechat.svn.sourceforge.net/phpfreechat/?rev=1073&view=rev
Author: kerphi
Date: 2007-08-01 13:06:54 -0700 (Wed, 01 Aug 2007)
Log Message:
-----------
develope a more generic way to communicate with iframe/comet system
Added Paths:
-----------
branches/pfc-comet/misc/comet-tests/iframe2/
branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.class.php
branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.js
branches/pfc-comet/misc/comet-tests/iframe2/tester.php
Added: branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.class.php
===================================================================
--- branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.class.php (rev 0)
+++ branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.class.php 2007-08-01 20:06:54 UTC (rev 1073)
@@ -0,0 +1,100 @@
+<?php
+
+class pfcComet {
+ var $pfccometjs_url = './pfccomet.js';
+ var $prototypejs_url = './prototype.js';
+ var $backend_url = '';
+ var $backend_param = 'backend';
+ var $backend_callback = null;
+ var $backend_loop = false;
+ var $backend_loop_sleep = 1;
+
+ function pfcComet()
+ {
+ if ($this->backend_url == '')
+ $this->backend_url = $_SERVER['PHP_SELF'];
+ }
+
+ function run()
+ {
+ if (isset($_REQUEST[$this->backend_param]))
+ {
+ header("Cache-Control: no-cache, must-revalidate");
+ header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
+ flush();
+ echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+ <title>pfcComet backend iframe</title>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+</head>
+<script type="text/javascript">
+ // KHTML browser don\'t share javascripts between iframes
+ var is_khtml = navigator.appName.match("Konqueror") || navigator.appVersion.match("KHTML");
+ if (is_khtml)
+ {
+ var prototypejs = document.createElement("script");
+ prototypejs.setAttribute("type","text/javascript");
+ prototypejs.setAttribute("src","'.$this->prototypejs_url.'");
+ var head = document.getElementsByTagName("head");
+ head[0].appendChild(prototypejs);
+ }
+ // load the comet object
+ var pfccomet = window.parent.pfccomet;
+</script>';
+ flush();
+
+ // trigger the onConnect callback
+ echo '<script type="text/javascript">pfccomet._onConnect();</script>';
+ flush();
+
+ // trigger the backend callback
+ do {
+ if (is_callable($this->backend_callback))
+ {
+ $func = $this->backend_callback;
+ if ( is_array($func) ){
+ echo $func[0]->$func[1]($this);
+ } else {
+ echo $func($this);
+ }
+ }
+ flush();
+ sleep($this->backend_loop_sleep);
+ } while($this->backend_loop);
+
+ // trigger the onDisconnect callback
+ echo '<script type="text/javascript">pfccomet._onDisconnect();</script>';
+ flush();
+
+ die();
+ }
+ }
+
+ function formatResponse($data)
+ {
+ return '<script type="text/javascript">pfccomet._onResponse(\''.addslashes($data).'\');</script>';
+ }
+
+ function printJavascript($return = false)
+ {
+ $output = '<script type="text/javascript" src="'.$this->prototypejs_url.'"></script>'."\n";
+ $output .= '<script type="text/javascript" src="'.$this->pfccometjs_url.'"></script>'."\n";
+ $output .= '<script type="text/javascript">
+Event.observe(window, "load", function() {
+ pfccomet = new pfcComet({"url":"'.$this->backend_url.'?'.$this->backend_param.'"});
+ pfccomet.onConnect = function(comet) { alert("connected"); };
+ pfccomet.onDisconnect = function(comet) { alert("disconnected"); };
+ pfccomet.onResponse = function(comet,data) { alert("response:"+data); };
+ pfccomet.connect();
+});
+</script>'."\n";
+ if ($return)
+ return $output;
+ else
+ echo $output;
+ }
+
+}
+
+?>
\ No newline at end of file
Added: branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.js
===================================================================
--- branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.js (rev 0)
+++ branches/pfc-comet/misc/comet-tests/iframe2/pfccomet.js 2007-08-01 20:06:54 UTC (rev 1073)
@@ -0,0 +1,118 @@
+/**
+ * This class is used to get data from server using a persistent connexion
+ * thus the clients are informed in realtime from the server changes (very usefull for a chat application)
+ * Usage:
+ * var comet = new pfcComet({'url': './cometbackend.php', 'id': 1});
+ * comet.onResponse = function(comet,data) { alert('response:'+data); };
+ * comet.onConnect = function(comet) { alert('connected'); };
+ * comet.onDisconnect = function(comet) { alert('disconnected'); };
+ */
+var pfcComet = Class.create();
+pfcComet.prototype = {
+
+ url: null,
+ _isconnected: false,
+
+ initialize: function(params) {
+ if (!params) params = {};
+ if (!params['url']) alert('error: url parameter is mandatory');
+ this.url = params['url'];
+ },
+
+ connect: function()
+ {
+ if (this._isconnected) return;
+ this._openPersistentConnexion();
+ },
+
+ disconnect: function()
+ {
+ if (!this._isconnected) return;
+ this._onDisconnect();
+ },
+
+ _openPersistentConnexion: function()
+ {
+ this._iframe = null;
+ this._iframediv = null;
+ Event.observe(window, "unload", this._onUnload);
+
+ if (navigator.appVersion.indexOf("MSIE") != -1) {
+
+ // For IE browsers
+ this._iframe = new ActiveXObject("htmlfile");
+ this._iframe.open();
+ this._iframe.write("<html>");
+ this._iframe.write("<script>document.domain = '"+document.domain+"'");
+ this._iframe.write("</html>");
+ this._iframe.close();
+ this._iframediv = this._iframe.createElement("div");
+ this._iframe.appendChild(this._iframediv);
+ this._iframe.parentWindow.comet = comet;
+ this._iframediv.innerHTML = '<iframe id="comet_iframe" src="' + this.url + '"></iframe>';
+
+ } else if (navigator.appVersion.indexOf("KHTML") != -1) {
+
+ // for KHTML browsers
+ this._iframe = document.createElement('iframe');
+ this._iframe.setAttribute('id', 'comet_iframe');
+ this._iframe.setAttribute('src', this.url);
+ with (this._iframe.style) {
+ position = "absolute";
+ left = top = "-100px";
+ height = width = "1px";
+ visibility = "hidden";
+ }
+ document.body.appendChild(this._iframe);
+
+ } else {
+
+ // For other browser (Firefox...)
+ this._iframe = document.createElement('iframe');
+ this._iframe.setAttribute('id', 'comet_iframe');
+ with (this._iframe.style) {
+ left = top = "-100px";
+ height = width = "1px";
+ visibility = "hidden";
+ display = 'none';
+ }
+ this._iframediv = document.createElement('iframe');
+ this._iframediv.setAttribute('src', this.url);
+ this._iframe.appendChild(this._iframediv);
+ document.body.appendChild(this._iframe);
+
+ }
+ },
+
+ _onConnect: function()
+ {
+ this._isconnected = true;
+ this.onConnect(this);
+ },
+
+ _onDisconnect: function()
+ {
+ this._iframe.remove();
+ this._onUnload();
+ this._isconnected = false;
+ this.onDisconnect(this);
+ },
+
+ _onResponse: function(data)
+ {
+ this.onResponse(this,data);
+ },
+
+ _onUnload: function() {
+ if (this._iframe) {
+ this._iframe = false; // release the iframe to prevent problems with IE when reloading the page
+ }
+ },
+
+ /**
+ * User's callbacks
+ */
+ onResponse: function(pfccomet, data) {},
+ onConnect: function(pfccomet) {},
+ onDisconnect: function(pfccomet) {}
+}
Added: branches/pfc-comet/misc/comet-tests/iframe2/tester.php
===================================================================
--- branches/pfc-comet/misc/comet-tests/iframe2/tester.php (rev 0)
+++ branches/pfc-comet/misc/comet-tests/iframe2/tester.php 2007-08-01 20:06:54 UTC (rev 1073)
@@ -0,0 +1,25 @@
+<?php
+
+function macallback($pfccomet) {
+ return $pfccomet->formatResponse('test macallback');
+}
+
+require_once 'pfccomet.class.php';
+$pfccomet = new pfcComet();
+$pfccomet->pfccometjs_url = './pfccomet.js';
+$pfccomet->prototypejs_url = '../../../data/public/js/prototype.js';
+$pfccomet->backend_url = './tester.php';
+$pfccomet->backend_callback = 'macallback';
+$pfccomet->run();
+
+?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <title>pfcComet tester</title>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <?php $pfccomet->printJavascript(); ?>
+ </head>
+ <body>
+tester
+ </body>
+</html>
\ No newline at end of file
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