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 | 6000;     // default timeout value
  39         document.getElementById('msgbox').innerHTML='';
  40         set_mark(tout>10000 ? 'progressbar.gif' : 'ajax-loader.gif');
  41         JsHttpRequest._request(trigger, form, tout, 0);
  42 }
  43
  44 JsHttpRequest._request = function(trigger, form, tout, retry) {
  45                 if (trigger.tagName=='A') {
  46                         var content = {};
  47                         var upload = 0;
  48                         var url = trigger.href;
  49                         if (trigger.id) content[trigger.id] = 1;
  50                 } else {
  51                 var submitObj = typeof(trigger) == "string" ?
  52                         document.getElementsByName(trigger)[0] : trigger;
  53
  54                 form = form || (submitObj && submitObj.form);
  55
  56                 var upload = form && form.enctype=='multipart/form-data';
  57
  58                 var url = form ? form.action :
  59                   window.location.toString();
  60
  61                 var content = this.formInputs(trigger, form, upload);
  62
  63                 if (!form) url = url.substring(0, url.indexOf('?'));
  64
  65                 if (!submitObj) {
  66                         content[trigger] = 1;
  67                         }
  68                 }
  69                         // this is to avoid caching problems
  70                 content['_random'] = Math.random()*1234567;
  71
  72                 var tcheck = setTimeout(
  73                         function() {
  74                                 for(var id in JsHttpRequest.PENDING)  {
  75                                         var call = JsHttpRequest.PENDING[id];
  76                                         if (call != false) {
  77                                         if (call._ldObj.xr) // needed for gecko
  78                                                 call._ldObj.xr.onreadystatechange = function(){};
  79                                         call.abort(); // why this doesn't kill request in firebug?
  80 //                                              call._ldObj.xr.abort();
  81                                                 delete JsHttpRequest.PENDING[id];
  82                                         }
  83                                 }
  84                                 set_mark(retry ? 'ajax-loader2.gif':'warning.png' );
  85                                 if(retry)
  86                                         JsHttpRequest._request(trigger, form, tout, retry-1);
  87                         }, tout );
  88
  89         JsHttpRequest.query(
  90             (upload ? "form." : "")+"POST "+url, // force form loader
  91                 content,
  92             // Function is called when an answer arrives.
  93             function(result, errors) {
  94                 // Write the answer.
  95                         var newwin = 0;
  96                 if (result) {
  97                           for(var i in result ) {
  98                           atom = result[i];
  99                           cmd = atom['n'];
 100                           property = atom['p'];
 101                           type = atom['c'];
 102                           id = atom['t'];
 103                           data = atom['data'];
 104 //                              debug(cmd+':'+property+':'+type+':'+id);
 105                         // seek element by id if there is no elemnt with given name
 106                           objElement = document.getElementsByName(id)[0] || document.getElementById(id);
 107                   if(cmd=='as') {
 108                                   eval("objElement.setAttribute('"+property+"','"+data+"');");
 109                           } else if(cmd=='up') {
 110 //                              if(!objElement) alert('No element "'+id+'"');
 111                                 if(objElement) {
 112                             if (objElement.tagName == 'INPUT' || objElement.tagName == 'TEXTAREA')
 113                                   objElement.value = data;
 114                             else
 115                                   objElement.innerHTML = data; // selector, div, span etc
 116                                 }
 117                           } else if(cmd=='di') { // disable/enable element
 118                                   objElement.disabled = data;
 119                           } else if(cmd=='fc') { // set focus
 120                                   _focus = data;
 121                           } else if(cmd=='js') {        // evaluate js code
 122                                   eval(data);
 123                           } else if(cmd=='rd') {        // client-side redirection
 124                                   window.location = data;
 125                           } else if(cmd=='pu') {        // pop-up
 126                                   newwin = 1;
 127                                   window.open(data,'REP_WINDOW','toolbar=no,scrollbar=no,resizable=yes,menubar=no');
 128                           } else {
 129                                   errors = errors+'<br>Unknown ajax function: '+cmd;
 130                         }
 131                   }
 132                  if(tcheck)
 133                    JsHttpRequest.clearTimeout(tcheck);
 134         // Write errors to the debug div.
 135                   document.getElementById('msgbox').innerHTML = errors;
 136                   set_mark();
 137
 138                   Behaviour.apply();
 139
 140                   if (errors.length>0)
 141                         window.scrollTo(0,0);
 142                         //document.getElementById('msgbox').scrollIntoView(true);
 143           // Restore focus if we've just lost focus because of DOM element refresh
 144                         if(!newwin) {
 145                                 setFocus();
 146                         }
 147                 }
 148             },
 149                 false  // do not disable caching
 150         );
 151         }
 152         // collect all form input values plus inp trigger value
 153         JsHttpRequest.formInputs = function(inp, objForm, upload)
 154         {
 155                 var submitObj = inp;
 156                 var q = {};
 157
 158                 if (typeof(inp) == "string")
 159                         submitObj = document.getElementsByName(inp)[0]||inp;
 160
 161                 objForm = objForm || (submitObj && submitObj.form);
 162
 163                 if (objForm)
 164                 {
 165                         var formElements = objForm.elements;
 166                         for( var i=0; i < formElements.length; i++)
 167                         {
 168                           var el = formElements[i];
 169                           var name = el.name;
 170                                 if (!el.name) continue;
 171                                 if(upload) { // for form containing file inputs collect all
 172                                         // form elements and add value of trigger submit button
 173                                         // (internally form is submitted via form.submit() not button click())
 174                                         q[name] = submitObj.type=='submit' && el==submitObj ? el.value : el;
 175                                         continue;
 176                                 }
 177                                 if (el.type )
 178                                   if(
 179                                   ((el.type == 'radio' || el.type == 'checkbox') && el.checked == false)
 180                                   || (el.type == 'submit' && (!submitObj || el.name!=submitObj.name)))
 181                                         continue;
 182                                 if (el.disabled && el.disabled == true)
 183                                         continue;
 184                                 if (name)
 185                                 {
 186                                         if(el.type=='select-multiple')
 187                                         {
 188                                                 name = name.substr(0,name.length-2);
 189                                                 q[name] = new Array;
 190                                                 for (var j = 0; j < el.length; j++)
 191                                                 {
 192                                                         s = name.substring(0, name.length-2);
 193                                                         if (el.options[j].selected == true)
 194                                                                 q[name].push(el.options[j].value);
 195                                                 }
 196                                         }
 197                                         else
 198                                         {
 199                                                 q[name] = el.value;
 200                                         }
 201                                 }
 202                         }
 203                 }
 204                 return q;
 205         }
 206 //
 207 //      User price formatting
 208 //
 209 function price_format(post, num, dec, label, color) {
 210         var el = label ? document.getElementById(post) : document.getElementsByName(post)[0];
 211         //num = num.toString().replace(/\$|\,/g,'');
 212         if(isNaN(num))
 213                 num = "0";
 214         sign = (num == (num = Math.abs(num)));
 215         var max = dec=='max';
 216         if(max) dec = 15 - Math.floor(Math.log(Math.abs(num)));
 217         if(dec<0) dec = 2;
 218         decsize = Math.pow(10, dec);
 219         num = Math.floor(num*decsize+0.50000000001);
 220         cents = num%decsize;
 221         num = Math.floor(num/decsize).toString();
 222         for( i=cents.toString().length; i<dec; i++){
 223                 cents = "0"+cents;
 224         }
 225         if (max) // strip trailing 0
 226                 cents = cents.toString().replace(/0+$/,'');
 227         for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
 228                 num = num.substring(0,num.length-(4*i+3))+user.ts+
 229                         num.substring(num.length-(4*i+3));
 230          num = ((sign)?'':'-') + num;
 231         if(dec!=0 && (!max || cents!=0))
 232                 num = num + user.ds + cents;
 233         if(label)
 234             el.innerHTML = num;
 235         else
 236             el.value = num;
 237         if(color) {
 238                         el.style.color = (sign) ? '' : '#FF0000';
 239         }
 240 }
 241
 242 function get_amount(doc, label) {
 243             if(label)
 244                         var val = document.getElementById(doc).innerHTML;
 245             else
 246                         var val = typeof(doc) == "string" ?
 247                         document.getElementsByName(doc)[0].value : doc.value;
 248
 249                 val = val.replace(new RegExp('\\'+user.ts, 'g'),'');
 250                 val = +val.replace(new RegExp('\\'+user.ds, 'g'),'.');
 251                 return isNaN(val) ? 0 : val;
 252 }
 253
 254 function goBack() {
 255         if (window.history.length <= 1)
 256          window.close();
 257         else
 258          window.history.go(-1);
 259 }
 260
 261 function setFocus(name, byId) {
 262
 263  if(typeof(name)=='object')
 264         el = name;
 265  else {
 266         if(!name) { // page load/ajax update
 267                 if (_focus)
 268                         name = _focus;  // last focus set in onfocus handlers
 269                 else
 270                         if (document.forms.length) {    // no current focus (first page display) -  set it from from last form
 271                           var cur = document.getElementsByName('_focus')[document.forms.length-1];
 272                           if(cur) name = cur.value;
 273                         }
 274           }
 275           if(byId || !(el = document.getElementsByName(name)[0]))
 276                 el = document.getElementById(name);
 277   }
 278   if(el && el.focus) {
 279     // The timeout is needed to prevent unpredictable behaviour on IE & Gecko.
 280     // Using tmp var prevents crash on IE5
 281
 282     var tmp = function() {el.focus(); if (el.select) el.select();};
 283         setTimeout(tmp, 0);
 284   }
 285 }
 286 /*
 287         Find closest element in neighbourhood and set focus.
 288         dir is arrow keycode.
 289 */
 290 function move_focus(dir, e0, neighbours)
 291 {
 292         var p0 = element_pos(e0);
 293         var t;
 294         var l=0;
 295         for(var i=0; i<neighbours.length; i++) {
 296                 var e = neighbours[i];
 297                 var p = element_pos(e);
 298                 if (p!=null && (e.className=='menu_option' || e.className=='printlink')) {
 299                         if (((dir==40) && (p.y>p0.y)) || (dir==38 && (p.y<p0.y))
 300                                 || ((dir==37) && (p.x<p0.x)) || ((dir==39 && (p.x>p0.x)))) {
 301                                         var l1 = (p.y-p0.y)*(p.y-p0.y)+(p.x-p0.x)*(p.x-p0.x);
 302                                         if ((l1<l) || (l==0)) {
 303                                                 l = l1; t = e;
 304                                         }
 305                         }
 306                 }
 307         }
 308         if (t)
 309                 setFocus(t);
 310         return t;
 311 }
 312
 313 var __isFireFox = navigator.userAgent.match(/gecko/i);
 314 //returns the absolute position of some element within document
 315 function element_pos(e) {
 316         var res = new Object();
 317                 res.x = 0; res.y = 0;
 318         if (e !== null) {
 319                 res.x = e.offsetLeft;
 320                 res.y = e.offsetTop;
 321                 var offsetParent = e.offsetParent;
 322                 var parentNode = e.parentNode;
 323
 324                 while (offsetParent !== null && offsetParent.style.display != 'none') {
 325                         res.x += offsetParent.offsetLeft;
 326                         res.y += offsetParent.offsetTop;
 327                         // the second case is for IE6/7 in some doctypes
 328                         if (offsetParent != document.body && offsetParent != document.documentElement) {
 329                                 res.x -= offsetParent.scrollLeft;
 330                                 res.y -= offsetParent.scrollTop;
 331                         }
 332                               //next lines are necessary to support FireFox problem with offsetParent
 333                         if (__isFireFox) {
 334                                 while (offsetParent != parentNode && parentNode !== null) {
 335                                         res.x -= parentNode.scrollLeft;
 336                                         res.y -= parentNode.scrollTop;
 337
 338                                         parentNode = parentNode.parentNode;
 339                                 }
 340                         }
 341                         parentNode = offsetParent.parentNode;
 342                         offsetParent = offsetParent.offsetParent;
 343                 }
 344         }
 345         // parentNode has style.display set to none
 346         if (parentNode != document.documentElement) return null;
 347         return res;
 348 }