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