www.fsf.org/20131028/files/unlockOnFormUnload.js

   1 /*
   2   Plone unlock handler; attaches an unlock handler to $('form.enableUnlockProtection')
   3
   4   provides global plone
   5 */
   6
   7
   8 /*global plone:true, setInterval:false, clearInterval:false */
   9 /*jslint nomen:false */
  10
  11 /* Unlock the object on form unload, and refresh the lock every 5 minutes */
  12 if (typeof(plone) === 'undefined') {
  13     var plone = {};
  14 }
  15
  16 (function($){
  17 plone.UnlockHandler = {
  18     init: function() {
  19         // set up the handler, if there are any forms
  20         if ($('form.enableUnlockProtection').length) {
  21             $(window).unload(plone.UnlockHandler.execute);
  22             plone.UnlockHandler._refresher = setInterval(plone.UnlockHandler.refresh, 300000);
  23         }
  24     },
  25
  26     cleanup: function() {
  27         $(window).unbind('unload', plone.UnlockHandler.execute);
  28         clearInterval(plone.UnlockHandler._refresher);
  29     },
  30
  31     execute: function() {
  32         // this.submitting is set from the form unload handler
  33         // (formUnload.js) and signifies that we are in the
  34         // form submit process. This means: no unlock needed,
  35         // and it also would be harmful (ConflictError)
  36         if (this.submitting) {return;}
  37         $.get(plone.UnlockHandler._baseUrl() + '/@@plone_lock_operations/safe_unlock');
  38     },
  39
  40     refresh: function() {
  41         if (this.submitting) {return;}
  42         $.get(plone.UnlockHandler._baseUrl() + '/@@plone_lock_operations/refresh_lock');
  43     },
  44
  45     _baseUrl: function() {
  46         var baseUrl, pieces;
  47
  48         baseUrl = $('base').attr('href');
  49         if (!baseUrl) {
  50             pieces = window.location.href.split('/');
  51             pieces.pop();
  52             baseUrl = pieces.join('/');
  53         }
  54         return baseUrl;
  55     }
  56 };
  57
  58 $(plone.UnlockHandler.init);
  59
  60 })(jQuery);