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(box) {
  14                 if(img) box.src = user.theme+'images/'+ img;
  15                 box.style.visibility = img ? 'visible' : 'hidden'
  16         }
  17 }
  18
  19 function disp_msg(msg, cl) {
  20         var box = document.getElementById('msgbox')
  21         box.innerHTML= "<div class='"+(cl || 'err_msg')+"'>"+ msg+'</div>';
  22 //      box.style.display = msg=='' ? 'none':'block';
  23     if (msg!='') window.scrollTo(0,element_pos(box).y-10);
  24 }
  25
  26 //
  27 //      JsHttpRequest class extensions.
  28 //
  29 // Main functions for asynchronus form submitions
  30 //      Trigger is the source of request and can have following forms:
  31 //      - input object - all form values are also submited
  32 //  - arbitrary string - POST var trigger with value 1 is added to request;
  33 //              if form parameter exists also form values are submited, otherwise
  34 //              request is directed to current location
  35 //
  36 JsHttpRequest.request= function(trigger, form, tout) {
  37 //      if (trigger.type=='submit' && !validate(trigger)) return false;
  38         tout = tout | 3000;     // default timeout value
  39         set_mark(tout>5000 ? 'progressbar.gif' : 'ajax-loader.gif');
  40         JsHttpRequest._request(trigger, form, tout, 2);
  41 }
  42
  43 JsHttpRequest._request = function(trigger, form, tout, retry) {
  44                 if (trigger.tagName=='A') {
  45                         var content = {};
  46                         var upload = 0;
  47                         var url = trigger.href;
  48                         if (trigger.id) content[trigger.id] = 1;
  49                 } else {
  50                 var submitObj = typeof(trigger) == "string" ?
  51                         document.getElementsByName(trigger)[0] : trigger;
  52
  53                 form = form || (submitObj && submitObj.form);
  54
  55                 var upload = form && form.enctype=='multipart/form-data';
  56
  57                 var url = form ? form.action :
  58                   window.location.toString();
  59
  60                 var content = this.formInputs(trigger, form, upload);
  61
  62                 if (!form) url = url.substring(0, url.indexOf('?'));
  63
  64                 if (!submitObj) {
  65                         content[trigger] = 1;
  66                         }
  67                 }
  68                         // this is to avoid caching problems
  69                 content['_random'] = Math.random()*1234567;
  70
  71                 var tcheck = setTimeout(
  72                         function() {
  73                                 for(var id in JsHttpRequest.PENDING)  {
  74                                         var call = JsHttpRequest.PENDING[id];
  75                                         if (call != false) {
  76                                         if (call._ldObj.xr) // needed for gecko
  77                                                 call._ldObj.xr.onreadystatechange = function(){};
  78                                         call.abort(); // why this doesn't kill request in firebug?
  79 //                                              call._ldObj.xr.abort();
  80                                                 delete JsHttpRequest.PENDING[id];
  81                                         }
  82                                 }
  83                                 set_mark(retry ? 'ajax-loader2.gif':'warning.png' );
  84                                 if(retry)
  85                                         JsHttpRequest._request(trigger, form, tout, retry-1);
  86                         }, tout );
  87
  88         JsHttpRequest.query(
  89             (upload ? "form." : "")+"POST "+url, // force form loader
  90                 content,
  91             // Function is called when an answer arrives.
  92             function(result, errors) {
  93                 // Write the answer.
  94                         var newwin = 0;
  95                 if (result) {
  96                           for(var i in result ) {
  97                           atom = result[i];
  98                           cmd = atom['n'];
  99                           property = atom['p'];
 100                           type = atom['c'];
 101                           id = atom['t'];
 102                           data = atom['data'];
 103 //                              debug(cmd+':'+property+':'+type+':'+id);
 104                         // seek element by id if there is no elemnt with given name
 105                           objElement = document.getElementsByName(id)[0] || document.getElementById(id);
 106                   if(cmd=='as') {
 107                                   eval("objElement.setAttribute('"+property+"',"+data+");");
 108                           } else if(cmd=='up') {
 109 //                              if(!objElement) alert('No element "'+id+'"');
 110                                 if(objElement) {
 111                             if (objElement.tagName == 'INPUT' || objElement.tagName == 'TEXTAREA')
 112                                   objElement.value = data;
 113                             else
 114                                   objElement.innerHTML = data; // selector, div, span etc
 115                                 }
 116                           } else if(cmd=='di') { // disable/enable element
 117                                   objElement.disabled = data;
 118                           } else if(cmd=='fc') { // set focus
 119                                   _focus = data;
 120                           } else if(cmd=='js') {        // evaluate js code
 121                                   eval(data);
 122                           } else if(cmd=='rd') {        // client-side redirection
 123                                   window.location = data;
 124                           } else if(cmd=='pu') {        // pop-up
 125                                   newwin = 1;
 126                                   window.open(data,'REP_WINDOW','toolbar=no,scrollbar=no,resizable=yes,menubar=no');
 127                           } else {
 128                                   errors = errors+'<br>Unknown ajax function: '+cmd;
 129                         }
 130                   }
 131                  if(tcheck)
 132                    JsHttpRequest.clearTimeout(tcheck);
 133         // Write errors to the debug div.
 134                   document.getElementById('msgbox').innerHTML = errors;
 135                   set_mark();
 136
 137                   Behaviour.apply();
 138
 139                   if (errors.length>0)
 140                         window.scrollTo(0,0);
 141                         //document.getElementById('msgbox').scrollIntoView(true);
 142           // Restore focus if we've just lost focus because of DOM element refresh
 143                         if(!newwin) {
 144                                 setFocus();
 145                         }
 146                 }
 147             },
 148                 false  // do not disable caching
 149         );
 150         }
 151         // collect all form input values plus inp trigger value
 152         JsHttpRequest.formInputs = function(inp, objForm, upload)
 153         {
 154                 var submitObj = inp;
 155                 var q = {};
 156
 157                 if (typeof(inp) == "string")
 158                         submitObj = document.getElementsByName(inp)[0]||inp;
 159
 160                 objForm = objForm || (submitObj && submitObj.form);
 161
 162                 if (objForm)
 163                 {
 164                         var formElements = objForm.elements;
 165                         for( var i=0; i < formElements.length; i++)
 166                         {
 167                           var el = formElements[i];
 168                           var name = el.name;
 169                                 if (!el.name) continue;
 170                                 if(upload) { // for form containing file inputs collect all
 171                                         // form elements and add value of trigger submit button
 172                                         // (internally form is submitted via form.submit() not button click())
 173                                         q[name] = submitObj.type=='submit' && el==submitObj ? el.value : el;
 174                                         continue;
 175                                 }
 176                                 if (el.type )
 177                                   if(
 178                                   ((el.type == 'radio' || el.type == 'checkbox') && el.checked == false)
 179                                   || (el.type == 'submit' && (!submitObj || el.name!=submitObj.name)))
 180                                         continue;
 181                                 if (el.disabled && el.disabled == true)
 182                                         continue;
 183                                 if (name)
 184                                 {
 185                                         if(el.type=='select-multiple')
 186                                         {
 187                                                 for (var j = 0; j < el.length; j++)
 188                                                 {
 189                                                         if (el.options[j].selected == true)
 190                                                                 q[name] = el.options[j].value;
 191                                                 }
 192                                         }
 193                                         else
 194                                         {
 195                                                 q[name] = el.value;
 196                                         }
 197                                 }
 198                         }
 199                 }
 200                 return q;
 201         }
 202 //
 203 //      User price formatting
 204 //
 205 function price_format(post, num, dec, label, color) {
 206         var el = label ? document.getElementById(post) : document.getElementsByName(post)[0];
 207         //num = num.toString().replace(/\$|\,/g,'');
 208         if(isNaN(num))
 209                 num = "0";
 210         sign = (num == (num = Math.abs(num)));
 211         if(dec<0) dec = 2;
 212         decsize = Math.pow(10, dec);
 213         num = Math.floor(num*decsize+0.50000000001);
 214         cents = num%decsize;
 215         num = Math.floor(num/decsize).toString();
 216         for( i=cents.toString().length; i<dec; i++){
 217                 cents = "0" + cents;
 218         }
 219         for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
 220                 num = num.substring(0,num.length-(4*i+3))+user.ts+
 221                         num.substring(num.length-(4*i+3));
 222          num = ((sign)?'':'-') + num;
 223          if(dec!=0) num = num + user.ds + cents;
 224         if(label)
 225             el.innerHTML = num;
 226         else
 227             el.value = num;
 228         if(color) {
 229                         el.style.color = (sign) ? '' : '#FF0000';
 230         }
 231 }
 232
 233 function get_amount(doc, label) {
 234             if(label)
 235                         var val = document.getElementById(doc).innerHTML;
 236             else
 237                         var val = typeof(doc) == "string" ?
 238                         document.getElementsByName(doc)[0].value : doc.value;
 239
 240                 val = val.replace(new RegExp('\\'+user.ts, 'g'),'');
 241                 val = +val.replace(new RegExp('\\'+user.ds, 'g'),'.');
 242                 return isNaN(val) ? 0 : val;
 243 }
 244
 245 function goBack() {
 246         if (window.history.length <= 1)
 247          window.close();
 248         else
 249          window.history.go(-1);
 250 }
 251
 252 function setFocus(name, byId) {
 253
 254  if(typeof(name)=='object')
 255         el = name;
 256  else {
 257         if(!name) { // page load/ajax update
 258                 if (_focus)
 259                         name = _focus;  // last focus set in onfocus handlers
 260                 else
 261                         if (document.forms.length) {    // no current focus (first page display) -  set it from from last form
 262                           var cur = document.getElementsByName('_focus')[document.forms.length-1];
 263                           if(cur) name = cur.value;
 264                         }
 265           }
 266           if(byId || !(el = document.getElementsByName(name)[0]))
 267                 el = document.getElementById(name);
 268   }
 269   if(el && el.focus) {
 270     // The timeout is needed to prevent unpredictable behaviour on IE & Gecko.
 271     // Using tmp var prevents crash on IE5
 272
 273     var tmp = function() {el.focus(); if (el.select) el.select();};
 274         setTimeout(tmp, 0);
 275   }
 276 }
 277 /*
 278         Find closest element in neighbourhood and set focus.
 279         dir is arrow keycode.
 280 */
 281 function move_focus(dir, e0, neighbours)
 282 {
 283         var p0 = element_pos(e0);
 284         var t;
 285         var l=0;
 286         for(var i=0; i<neighbours.length; i++) {
 287                 var e = neighbours[i];
 288                 var p = element_pos(e);
 289                 if (p!=null && (e.className=='menu_option' || e.className=='printlink')) {
 290                         if (((dir==40) && (p.y>p0.y)) || (dir==38 && (p.y<p0.y))
 291                                 || ((dir==37) && (p.x<p0.x)) || ((dir==39 && (p.x>p0.x)))) {
 292                                         var l1 = (p.y-p0.y)*(p.y-p0.y)+(p.x-p0.x)*(p.x-p0.x);
 293                                         if ((l1<l) || (l==0)) {
 294                                                 l = l1; t = e;
 295                                         }
 296                         }
 297                 }
 298         }
 299         if (t)
 300                 setFocus(t);
 301         return t;
 302 }
 303
 304 var __isFireFox = navigator.userAgent.match(/gecko/i);
 305 //returns the absolute position of some element within document
 306 function element_pos(e) {
 307         var res = new Object();
 308                 res.x = 0; res.y = 0;
 309         if (e !== null) {
 310                 res.x = e.offsetLeft;
 311                 res.y = e.offsetTop;
 312                 var offsetParent = e.offsetParent;
 313                 var parentNode = e.parentNode;
 314
 315                 while (offsetParent !== null && offsetParent.style.display != 'none') {
 316                         res.x += offsetParent.offsetLeft;
 317                         res.y += offsetParent.offsetTop;
 318                         // the second case is for IE6/7 in some doctypes
 319                         if (offsetParent != document.body && offsetParent != document.documentElement) {
 320                                 res.x -= offsetParent.scrollLeft;
 321                                 res.y -= offsetParent.scrollTop;
 322                         }
 323                               //next lines are necessary to support FireFox problem with offsetParent
 324                         if (__isFireFox) {
 325                                 while (offsetParent != parentNode && parentNode !== null) {
 326                                         res.x -= parentNode.scrollLeft;
 327                                         res.y -= parentNode.scrollTop;
 328
 329                                         parentNode = parentNode.parentNode;
 330                                 }
 331                         }
 332                         parentNode = offsetParent.parentNode;
 333                         offsetParent = offsetParent.offsetParent;
 334                 }
 335         }
 336         // parentNode has style.display set to none
 337         if (parentNode != document.documentElement) return null;
 338         return res;
 339 }