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