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   1  
   2  M.form_filepicker = {};
   3  M.form_filepicker.Y = null;
   4  M.form_filepicker.instances = [];
   5  
   6  M.form_filepicker.callback = function(params) {
   7      var html = '<a href="'+params['url']+'">'+params['file']+'</a>';
   8      html += '<div class="dndupload-progressbars"></div>';
   9      M.form_filepicker.Y.one('#file_info_'+params['client_id'] + ' .filepicker-filename').setContent(html);
  10      //When file is added then set status of global variable to true
  11      var elementname = M.core_filepicker.instances[params['client_id']].options.elementname;
  12      M.form_filepicker.instances[elementname].fileadded = true;
  13      //generate event to indicate changes which will be used by disable if or validation code
  14      M.form_filepicker.Y.one('#id_'+elementname).simulate('change');
  15  };
  16  
  17  /**
  18   * This fucntion is called for each file picker on page.
  19   */
  20  M.form_filepicker.init = function(Y, options) {
  21      //Keep reference of YUI, so that it can be used in callback.
  22      M.form_filepicker.Y = Y;
  23  
  24      //For client side validation, initialize file status for this filepicker
  25      M.form_filepicker.instances[options.elementname] = {};
  26      M.form_filepicker.instances[options.elementname].fileadded = false;
  27  
  28      //Set filepicker callback
  29      options.formcallback = M.form_filepicker.callback;
  30  
  31      if (!M.core_filepicker.instances[options.client_id]) {
  32          M.core_filepicker.init(Y, options);
  33      }
  34      Y.on('click', function(e, client_id) {
  35          e.preventDefault();
  36          if (this.ancestor('.fitem.disabled') == null) {
  37              M.core_filepicker.instances[client_id].show();
  38          }
  39      }, '#filepicker-button-'+options.client_id, null, options.client_id);
  40  
  41      var item = document.getElementById('nonjs-filepicker-'+options.client_id);
  42      if (item) {
  43          item.parentNode.removeChild(item);
  44      }
  45      item = document.getElementById('filepicker-wrapper-'+options.client_id);
  46      if (item) {
  47          item.style.display = '';
  48      }
  49  
  50      var dndoptions = {
  51          clientid: options.client_id,
  52          acceptedtypes: options.accepted_types,
  53          author: options.author,
  54          maxfiles: -1,
  55          maxbytes: options.maxbytes,
  56          itemid: options.itemid,
  57          repositories: options.repositories,
  58          formcallback: options.formcallback,
  59          containerprefix: '#file_info_',
  60          containerid: 'file_info_'+options.client_id,
  61          contextid: options.context.id
  62      };
  63      M.form_dndupload.init(Y, dndoptions);
  64  };