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