js/utils.js

   1 //
   2 //      JsHttpRequest class extensions.
   3 //
   4 // Main functions for asynchronus form submitions
   5 //      Trigger is the source of request and can have following forms:
   6 //      - input object - all form values are also submited
   7 //  - arbitrary string - POST var trigger with value 1 is added to request;
   8 //              if form parameter exists also form values are submited, otherwise
   9 //              request is directed to current location
  10 //
  11     JsHttpRequest.request= function(trigger, form) {
  12                 var mark = document.getElementById('ajaxmark');
  13                 if(mark) mark.style.visibility = 'visible';
  14                 if (trigger.tagName=='A') {
  15                         var content = {};
  16                         var upload = 0;
  17                         var url = trigger.href;
  18                         if (trigger.id) content[trigger.id] = 1;
  19                 } else {
  20                 var submitObj = typeof(trigger) == "string" ?
  21                         document.getElementsByName(trigger)[0] : trigger;
  22
  23                 form = form || (submitObj && submitObj.form);
  24
  25                 var upload = form && form.enctype=='multipart/form-data';
  26
  27                 var url = form ? form.action :
  28                   window.location.toString();
  29
  30                 var content = this.formInputs(trigger, form, upload);
  31
  32                 if (!form) url = url.substring(0, url.indexOf('?'));
  33
  34                 if (!submitObj)
  35                         content[trigger] = 1;
  36
  37                 }
  38                         // this is to avoid caching problems
  39                 content['_random'] = Math.random()*1234567;
  40
  41         JsHttpRequest.query(
  42             (upload ? "form." : "")+"POST "+url, // force form loader
  43                 content,
  44             // Function is called when an answer arrives.
  45             function(result, errors) {
  46                 // Write the answer.
  47                         var newwin = 0;
  48                 if (result) {
  49                           for(var i in result ) {
  50                           atom = result[i];
  51                           cmd = atom['n'];
  52                           property = atom['p'];
  53                           type = atom['c'];
  54                           id = atom['t'];
  55                           data = atom['data'];
  56 //                              debug(cmd+':'+property+':'+type+':'+id);
  57                         // seek element by id if there is no elemnt with given name
  58                           objElement = document.getElementsByName(id)[0] || document.getElementById(id);
  59                           if(!objElement) continue;
  60                   if(cmd=='as') {
  61                                   eval("objElement.setAttribute('"+property+"',"+data+");");
  62                           } else if(cmd=='up') {
  63 //                              if(!objElement) debug('No element "'+id+'"');
  64                             if (objElement.tagName == 'INPUT' || objElement.tagName == 'TEXTAREA')
  65                                   objElement.value = data;
  66                             else
  67                                   objElement.innerHTML = data; // selector, div, span etc
  68                           } else if(cmd=='di') { // disable/enable element
  69                                   objElement.disabled = data;
  70                           } else if(cmd=='fc') { // set focus
  71                                   _focus = data;
  72                           } else if(cmd=='js') {        // evaluate js code
  73                                   eval(data);
  74                           } else if(cmd=='rd') {        // client-side redirection
  75                                   window.location = data;
  76                           } else if(cmd=='pu') {        // pop-up
  77                                   newwin = 1;
  78                                   window.open(data,'REP_WINDOW','toolbar=no,scrollbar=no,resizable=yes,menubar=no');
  79                           } else {
  80                                   errors = errors+'<br>Unknown ajax function: '+cmd;
  81                         }
  82                   }
  83
  84         // Write errors to the debug div.
  85                   document.getElementById('msgbox').innerHTML = errors;
  86                   var mark = document.getElementById('ajaxmark');
  87                   if(mark) mark.style.visibility = 'hidden';
  88
  89                   Behaviour.apply();
  90
  91                   if (errors.length>0)
  92                         window.scrollTo(0,0);
  93                         //document.getElementById('msgbox').scrollIntoView(true);
  94           // Restore focus if we've just lost focus because of DOM element refresh
  95                         if(!newwin) {
  96                                 setFocus();
  97                         }
  98                 }
  99             },
 100             false  // do not disable caching
 101         );
 102     }
 103         // collect all form input values plus inp trigger value
 104         JsHttpRequest.formInputs = function(inp, objForm, upload)
 105         {
 106                 var submitObj = inp;
 107                 var q = {};
 108
 109                 if (typeof(inp) == "string")
 110                         submitObj = document.getElementsByName(inp)[0];
 111                 else
 112                         submitObj = inp;
 113
 114                 objForm = objForm || (submitObj && submitObj.form);
 115
 116                 if (objForm)
 117                 {
 118                         var formElements = objForm.elements;
 119                         for( var i=0; i < formElements.length; i++)
 120                         {
 121                           var el = formElements[i];
 122                           var name = el.name;
 123                                 if (!el.name) continue;
 124                                 if(upload) { // for form containing file inputs collect all
 125                                         // form elements and add value of trigger submit button
 126                                         // (internally form is submitted via form.submit() not button click())
 127                                         q[name] = submitObj.type=='submit' && el==submitObj ? el.value : el;
 128                                         continue;
 129                                 }
 130                                 if (el.type )
 131                                   if(
 132                                   ((el.type == 'radio' || el.type == 'checkbox') && el.checked == false)
 133                                   || (el.type == 'submit' && (!submitObj || el.name!=submitObj.name)))
 134                                         continue;
 135                                 if (el.disabled && el.disabled == true)
 136                                         continue;
 137                                 if (name)
 138                                 {
 139                                         if(el.type=='select-multiple')
 140                                         {
 141                                                 for (var j = 0; j < el.length; j++)
 142                                                 {
 143                                                         if (el.options[j].selected == true)
 144                                                                 q[name] = el.options[j].value;
 145                                                 }
 146                                         }
 147                                         else
 148                                         {
 149                                                 q[name] = el.value;
 150                                         }
 151                                 }
 152                         }
 153                 }
 154                 return q;
 155         }
 156 //
 157 //      User price formatting
 158 //
 159 function price_format(post, num, dec, label, color) {
 160         var el = label ? document.getElementById(post) : document.getElementsByName(post)[0];
 161         //num = num.toString().replace(/\$|\,/g,'');
 162         if(isNaN(num))
 163                 num = "0";
 164         sign = (num == (num = Math.abs(num)));
 165         if(dec<0) dec = 2;
 166         decsize = Math.pow(10, dec);
 167         num = Math.floor(num*decsize+0.50000000001);
 168         cents = num%decsize;
 169         num = Math.floor(num/decsize).toString();
 170         for( i=cents.toString().length; i<dec; i++){
 171                 cents = "0" + cents;
 172         }
 173         for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
 174                 num = num.substring(0,num.length-(4*i+3))+user.ts+
 175                         num.substring(num.length-(4*i+3));
 176          num = ((sign)?'':'-') + num;
 177          if(dec!=0) num = num + user.ds + cents;
 178         if(label)
 179             el.innerHTML = num;
 180         else
 181             el.value = num;
 182         if(color) {
 183                         el.style.color = (sign) ? '' : '#FF0000';
 184         }
 185 }
 186
 187 function get_amount(doc, label) {
 188             if(label)
 189                 var val = document.getElementById(doc).innerHTML;
 190             else
 191                 var val = document.getElementsByName(doc)[0].value;
 192                 val = val.replace(new RegExp('\\'+user.ts, 'g'),'');
 193                 val = val.replace(new RegExp('\\'+user.ds, 'g'),'.');
 194                 return 1*val;
 195 }
 196
 197 function goBack() {
 198         if (window.history.length <= 1)
 199          window.close();
 200         else
 201          window.history.go(-1);
 202 }
 203
 204 function setFocus(name, byId) {
 205   if(document.location.pathname.indexOf('index.php') != -1) {
 206         // this is application menu page - set focus on first link
 207         // var el = document.getElementById('msgbox');
 208         // TODO find first link after msgbox and set focus
 209   }
 210   if(!name) {
 211         if (_focus)
 212                 name = _focus;  // last focus set in onfocus handlers
 213         else
 214          if (document.forms.length) {   // no current focus (first page display) -  set it from from last form
 215           var cur = document.getElementsByName('_focus')[document.forms.length-1];
 216           if(cur) name = cur.value;
 217         }
 218   }
 219   if(byId)
 220         el = document.getElementById(name);
 221   else
 222         el = document.getElementsByName(name)[0];
 223
 224   if(el && el.focus) {
 225     // The timeout is needed to prevent unpredictable behaviour on IE & Gecko.
 226     // Using tmp var prevents crash on IE5
 227
 228     var tmp = function() {el.focus(); if (el.select) el.select();};
 229         setTimeout(tmp, 0);
 230   }
 231 }