htdocs/javascript/ajax.js

   1 /***************************************************************************
   2  *  Copyright (C) 2003-2008 Polytechnique.org                              *
   3  *  http://opensource.polytechnique.org/                                   *
   4  *                                                                         *
   5  *  This program is free software; you can redistribute it and/or modify   *
   6  *  it under the terms of the GNU General Public License as published by   *
   7  *  the Free Software Foundation; either version 2 of the License, or      *
   8  *  (at your option) any later version.                                    *
   9  *                                                                         *
  10  *  This program is distributed in the hope that it will be useful,        *
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  13  *  GNU General Public License for more details.                           *
  14  *                                                                         *
  15  *  You should have received a copy of the GNU General Public License      *
  16  *  along with this program; if not, write to the Free Software            *
  17  *  Foundation, Inc.,                                                      *
  18  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  19  ***************************************************************************/
  20
  21 function AjaxEngine()
  22 {
  23     this.xml_client = null;
  24     this.init = false;
  25     this.obj  = null;
  26     this.func = null;
  27
  28     this.prepare_client = function()
  29     {
  30         if (!this.init) {
  31             if (window.XMLHttpRequest) {
  32                 this.xml_client = new XMLHttpRequest();
  33             } else if (window.ActiveXObject) {
  34                 try {
  35                     this.xml_client = new ActiveXObject("Msxml2.XMLHTTP");
  36                 } catch (e) {
  37                     this.xml_client = new ActiveXObject("Microsoft.XMLHTTP");
  38                 }
  39             }
  40             if (this.xml_client == null) {
  41                 alert("Ton client ne supporte pas Ajax, nécessaire pour certaines fonctionalités de cette page");
  42             }
  43         }
  44         this.init = true;
  45     }
  46
  47     this.update_html = function(obj, src, func)
  48     {
  49         this.prepare_client();
  50         if (this.xml_client == null) {
  51             return true;
  52         }
  53         if (src.match(/^http/i) == null) {
  54             src = platal_baseurl + src;
  55         }
  56         this.obj = obj;
  57         this.func = func;
  58         this.xml_client.abort();
  59         this.xml_client.onreadystatechange = this.apply_update_html(this);
  60         this.xml_client.open ('GET', src, true);
  61         this.xml_client.send (null);
  62         return false;
  63     }
  64
  65     this.apply_update_html = function(ajax)
  66     {
  67         return function()
  68         {
  69             if(ajax.xml_client.readyState == 4) {
  70                 if (ajax.xml_client.status == 200) {
  71                     if (ajax.obj != null) {
  72                         document.getElementById(ajax.obj).innerHTML = ajax.xml_client.responseText;
  73                     }
  74                     if (ajax.func != null) {
  75                         ajax.func(ajax.xml_client.responseText);
  76                     }
  77                 } else if (ajax.xml_client.status == 403) {
  78                     window.location.reload();
  79                 } else if (ajax.xml_client.status >= 500) {
  80                     alert("Une erreur s'est produite lors du traitement de la requête");
  81                 }
  82             }
  83         };
  84     }
  85 }
  86
  87 var Ajax = new AjaxEngine();
  88
  89 var currentTempMessage = 0;
  90 function setOpacity(obj, opacity)
  91 {
  92   opacity = (opacity == 100)?99:opacity;
  93   // IE
  94   obj.style.filter = "alpha(opacity:"+opacity+")";
  95   // Safari < 1.2, Konqueror
  96   obj.style.KHTMLOpacity = opacity/100;
  97   // Old Mozilla
  98   obj.style.MozOpacity = opacity/100;
  99   // Safari >= 1.2, Firefox and Mozilla, CSS3
 100   obj.style.opacity = opacity/100
 101 }
 102
 103 function _showTempMessage(id, state, back)
 104 {
 105     var obj = document.getElementById(id);
 106     if (currentTempMessage != state) {
 107         return;
 108     }
 109     setOpacity(obj, back * 4);
 110     if (back > 0) {
 111         setTimeout("_showTempMessage('" + id + "', " + currentTempMessage + "," + (back-1) + ")", 125);
 112     } else {
 113         obj.innerHTML = "";
 114     }
 115 }
 116
 117 function showTempMessage(id, message, success)
 118 {
 119     var obj = document.getElementById(id);
 120     obj.innerHTML = (success ? "<img src='images/icons/wand.gif' alt='' /> "
 121                              : "<img src='images/icons/error.gif' alt='' /> ") + message;
 122     obj.style.fontWeight = "bold";
 123     obj.style.color = (success ? "green" : "red");;
 124     currentTempMessage++;
 125     setOpacity(obj, 100);
 126     setTimeout("_showTempMessage('" + id + "', " + currentTempMessage + ", 25)", 1000);
 127 }
 128
 129 function previewWiki(idFrom, idTo, withTitle, idShow)
 130 {
 131     var text = document.getElementById(idFrom).value;
 132     if (text == "") {
 133         return false;
 134     }
 135     var url  = "wiki_preview";
 136     if (!withTitle) {
 137         url += "/notitle";
 138     }
 139     $.post(url, { text: text },
 140         function(data) {
 141             $("#" + idTo).html(data);
 142         },
 143         'text');
 144     if (idShow != null) {
 145         document.getElementById(idShow).style.display = "";
 146     }
 147 }
 148
 149 function sendTestEmail(token, hruid)
 150 {
 151     Ajax.update_html(null, 'emails/test' + (hruid == null ? '' : '/' + hruid) + '?token=' + token,
 152                      function() {
 153                         showTempMessage('mail_sent', "Un email a été envoyé avec succès"
 154                                         + (hruid == null ? " sur ton adresse." : " sur l'adresse de " + hruid),
 155                                         true); });
 156     return false;
 157 }
 158
 159 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: