js/utils.js

   1 /**********************************************************************
   2     Copyright (C) FrontAccounting, LLC.
   3         Released under the terms of the GNU General Public License, GPL,
   4         as published by the Free Software Foundation, either version 3
   5         of the License, or (at your option) any later version.
   6     This program is distributed in the hope that it will be useful,
   7     but WITHOUT ANY WARRANTY; without even the implied warranty of
   8     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   9     See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
  10 ***********************************************************************/
  11 function set_mark(img) {
  12         var box = document.getElementById('ajaxmark');
  13         if(img) box.src = user.theme+'images/'+ img;
  14         box.style.visibility = img ? 'visible' : 'hidden'
  15 }
  16
  17 //
  18 //      JsHttpRequest class extensions.
  19 //
  20 // Main functions for asynchronus form submitions
  21 //      Trigger is the source of request and can have following forms:
  22 //      - input object - all form values are also submited
  23 //  - arbitrary string - POST var trigger with value 1 is added to request;
  24 //              if form parameter exists also form values are submited, otherwise
  25 //              request is directed to current location
  26 //
  27 JsHttpRequest.request= function(trigger, form, tout) {
  28         tout = tout | 3000;     // default timeout value
  29         set_mark(tout>5000 ? 'progressbar.gif' : 'ajax-loader.gif');
  30         JsHttpRequest._request(trigger, form, tout, 2);
  31 }
  32
  33 JsHttpRequest._request = function(trigger, form, tout, retry) {
  34
  35                 if (trigger.tagName=='A') {
  36                         var content = {};
  37                         var upload = 0;
  38                         var url = trigger.href;
  39                         if (trigger.id) content[trigger.id] = 1;
  40                 } else {
  41                 var submitObj = typeof(trigger) == "string" ?
  42                         document.getElementsByName(trigger)[0] : trigger;
  43
  44                 form = form || (submitObj && submitObj.form);
  45
  46                 var upload = form && form.enctype=='multipart/form-data';
  47
  48                 var url = form ? form.action :
  49                   window.location.toString();
  50
  51                 var content = this.formInputs(trigger, form, upload);
  52
  53                 if (!form) url = url.substring(0, url.indexOf('?'));
  54
  55                 if (!submitObj) {
  56                         content[trigger] = 1;
  57                         }
  58                 }
  59                         // this is to avoid caching problems
  60                 content['_random'] = Math.random()*1234567;
  61
  62                 var tcheck = setTimeout(
  63                         function() {
  64                                 for(var id in JsHttpRequest.PENDING)  {
  65                                         var call = JsHttpRequest.PENDING[id];
  66                                         if (call != false) {
  67                                         if (call._ldObj.xr) // needed for gecko
  68                                                 call._ldObj.xr.onreadystatechange = function(){};
  69                                         call.abort(); // why this doesn't kill request in firebug?
  70 //                                              call._ldObj.xr.abort();
  71                                                 delete JsHttpRequest.PENDING[id];
  72                                         }
  73                                 }
  74                                 set_mark(retry ? 'ajax-loader2.gif':'warning.png' );
  75                                 if(retry)
  76                                         JsHttpRequest._request(trigger, form, tout, retry-1);
  77                         }, tout );
  78
  79         JsHttpRequest.query(
  80             (upload ? "form." : "")+"POST "+url, // force form loader
  81                 content,
  82             // Function is called when an answer arrives.
  83             function(result, errors) {
  84                 // Write the answer.
  85                         var newwin = 0;
  86                 if (result) {
  87                           for(var i in result ) {
  88                           atom = result[i];
  89                           cmd = atom['n'];
  90                           property = atom['p'];
  91                           type = atom['c'];
  92                           id = atom['t'];
  93                           data = atom['data'];
  94 //                              debug(cmd+':'+property+':'+type+':'+id);
  95                         // seek element by id if there is no elemnt with given name
  96                           objElement = document.getElementsByName(id)[0] || document.getElementById(id);
  97                   if(cmd=='as') {
  98                                   eval("objElement.setAttribute('"+property+"',"+data+");");
  99                           } else if(cmd=='up') {
 100 //                              if(!objElement) alert('No element "'+id+'"');
 101                                 if(objElement) {
 102                             if (objElement.tagName == 'INPUT' || objElement.tagName == 'TEXTAREA')
 103                                   objElement.value = data;
 104                             else
 105                                   objElement.innerHTML = data; // selector, div, span etc
 106                                 }
 107                           } else if(cmd=='di') { // disable/enable element
 108                                   objElement.disabled = data;
 109                           } else if(cmd=='fc') { // set focus
 110                                   _focus = data;
 111                           } else if(cmd=='js') {        // evaluate js code
 112                                   eval(data);
 113                           } else if(cmd=='rd') {        // client-side redirection
 114                                   window.location = data;
 115                           } else if(cmd=='pu') {        // pop-up
 116                                   newwin = 1;
 117                                   window.open(data,'REP_WINDOW','toolbar=no,scrollbar=no,resizable=yes,menubar=no');
 118                           } else {
 119                                   errors = errors+'<br>Unknown ajax function: '+cmd;
 120                         }
 121                   }
 122                  if(tcheck)
 123                    JsHttpRequest.clearTimeout(tcheck);
 124         // Write errors to the debug div.
 125                   document.getElementById('msgbox').innerHTML = errors;
 126                   set_mark();
 127
 128                   Behaviour.apply();
 129
 130                   if (errors.length>0)
 131                         window.scrollTo(0,0);
 132                         //document.getElementById('msgbox').scrollIntoView(true);
 133           // Restore focus if we've just lost focus because of DOM element refresh
 134                         if(!newwin) {
 135                                 setFocus();
 136                         }
 137                 }
 138             },
 139                 false  // do not disable caching
 140         );
 141         }
 142         // collect all form input values plus inp trigger value
 143         JsHttpRequest.formInputs = function(inp, objForm, upload)
 144         {
 145                 var submitObj = inp;
 146                 var q = {};
 147
 148                 if (typeof(inp) == "string")
 149                         submitObj = document.getElementsByName(inp)[0]||inp;
 150
 151                 objForm = objForm || (submitObj && submitObj.form);
 152
 153                 if (objForm)
 154                 {
 155                         var formElements = objForm.elements;
 156                         for( var i=0; i < formElements.length; i++)
 157                         {
 158                           var el = formElements[i];
 159                           var name = el.name;
 160                                 if (!el.name) continue;
 161                                 if(upload) { // for form containing file inputs collect all
 162                                         // form elements and add value of trigger submit button
 163                                         // (internally form is submitted via form.submit() not button click())
 164                                         q[name] = submitObj.type=='submit' && el==submitObj ? el.value : el;
 165                                         continue;
 166                                 }
 167                                 if (el.type )
 168                                   if(
 169                                   ((el.type == 'radio' || el.type == 'checkbox') && el.checked == false)
 170                                   || (el.type == 'submit' && (!submitObj || el.name!=submitObj.name)))
 171                                         continue;
 172                                 if (el.disabled && el.disabled == true)
 173                                         continue;
 174                                 if (name)
 175                                 {
 176                                         if(el.type=='select-multiple')
 177                                         {
 178                                                 for (var j = 0; j < el.length; j++)
 179                                                 {
 180                                                         if (el.options[j].selected == true)
 181                                                                 q[name] = el.options[j].value;
 182                                                 }
 183                                         }
 184                                         else
 185                                         {
 186                                                 q[name] = el.value;
 187                                         }
 188                                 }
 189                         }
 190                 }
 191                 return q;
 192         }
 193 //
 194 //      User price formatting
 195 //
 196 function price_format(post, num, dec, label, color) {
 197         var el = label ? document.getElementById(post) : document.getElementsByName(post)[0];
 198         //num = num.toString().replace(/\$|\,/g,'');
 199         if(isNaN(num))
 200                 num = "0";
 201         sign = (num == (num = Math.abs(num)));
 202         if(dec<0) dec = 2;
 203         decsize = Math.pow(10, dec);
 204         num = Math.floor(num*decsize+0.50000000001);
 205         cents = num%decsize;
 206         num = Math.floor(num/decsize).toString();
 207         for( i=cents.toString().length; i<dec; i++){
 208                 cents = "0" + cents;
 209         }
 210         for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
 211                 num = num.substring(0,num.length-(4*i+3))+user.ts+
 212                         num.substring(num.length-(4*i+3));
 213          num = ((sign)?'':'-') + num;
 214          if(dec!=0) num = num + user.ds + cents;
 215         if(label)
 216             el.innerHTML = num;
 217         else
 218             el.value = num;
 219         if(color) {
 220                         el.style.color = (sign) ? '' : '#FF0000';
 221         }
 222 }
 223
 224 function get_amount(doc, label) {
 225             if(label)
 226                 var val = document.getElementById(doc).innerHTML;
 227             else
 228                 var val = document.getElementsByName(doc)[0].value;
 229                 val = val.replace(new RegExp('\\'+user.ts, 'g'),'');
 230                 val = +val.replace(new RegExp('\\'+user.ds, 'g'),'.');
 231                 return isNaN(val) ? 0 : val;
 232 }
 233
 234 function goBack() {
 235         if (window.history.length <= 1)
 236          window.close();
 237         else
 238          window.history.go(-1);
 239 }
 240
 241 function setFocus(name, byId) {
 242
 243  if(typeof(name)=='object')
 244         el = name;
 245  else {
 246         if(!name) { // page load/ajax update
 247                 if (_focus)
 248                         name = _focus;  // last focus set in onfocus handlers
 249                 else
 250                         if (document.forms.length) {    // no current focus (first page display) -  set it from from last form
 251                           var cur = document.getElementsByName('_focus')[document.forms.length-1];
 252                           if(cur) name = cur.value;
 253                         }
 254           }
 255           if(byId || !(el = document.getElementsByName(name)[0]))
 256                 el = document.getElementById(name);
 257   }
 258   if(el && el.focus) {
 259     // The timeout is needed to prevent unpredictable behaviour on IE & Gecko.
 260     // Using tmp var prevents crash on IE5
 261
 262     var tmp = function() {el.focus(); if (el.select) el.select();};
 263         setTimeout(tmp, 0);
 264   }
 265 }
 266 /*
 267         Find closest element in neighbourhood and set focus.
 268         dir is arrow keycode.
 269 */
 270 function move_focus(dir, e0, neighbours)
 271 {
 272         var p0 = element_pos(e0);
 273         var t;
 274         var l=0;
 275         for(var i=0; i<neighbours.length; i++) {
 276                 var e = neighbours[i];
 277                 var p = element_pos(e);
 278                 if (p!=null && (e.className=='menu_option' || e.className=='printlink')) {
 279                         if (((dir==40) && (p.y>p0.y)) || (dir==38 && (p.y<p0.y))
 280                                 || ((dir==37) && (p.x<p0.x)) || ((dir==39 && (p.x>p0.x)))) {
 281                                         var l1 = (p.y-p0.y)*(p.y-p0.y)+(p.x-p0.x)*(p.x-p0.x);
 282                                         if ((l1<l) || (l==0)) {
 283                                                 l = l1; t = e;
 284                                         }
 285                         }
 286                 }
 287         }
 288         if (t)
 289                 setFocus(t);
 290         return t;
 291 }
 292
 293 var __isFireFox = navigator.userAgent.match(/gecko/i);
 294 //returns the absolute position of some element within document
 295 function element_pos(e) {
 296         var res = new Object();
 297                 res.x = 0; res.y = 0;
 298         if (e !== null) {
 299                 res.x = e.offsetLeft;
 300                 res.y = e.offsetTop;
 301                 var offsetParent = e.offsetParent;
 302                 var parentNode = e.parentNode;
 303
 304                 while (offsetParent !== null && offsetParent.style.display != 'none') {
 305                         res.x += offsetParent.offsetLeft;
 306                         res.y += offsetParent.offsetTop;
 307                         // the second case is for IE6/7 in some doctypes
 308                         if (offsetParent != document.body && offsetParent != document.documentElement) {
 309                                 res.x -= offsetParent.scrollLeft;
 310                                 res.y -= offsetParent.scrollTop;
 311                         }
 312                               //next lines are necessary to support FireFox problem with offsetParent
 313                         if (__isFireFox) {
 314                                 while (offsetParent != parentNode && parentNode !== null) {
 315                                         res.x -= parentNode.scrollLeft;
 316                                         res.y -= parentNode.scrollTop;
 317
 318                                         parentNode = parentNode.parentNode;
 319                                 }
 320                         }
 321                         parentNode = offsetParent.parentNode;
 322                         offsetParent = offsetParent.offsetParent;
 323                 }
 324         }
 325         // parentNode has style.display set to none
 326         if (parentNode != document.documentElement) return null;
 327         return res;
 328 }