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   1  /*
   2   * To change this template, choose Tools | Templates
   3   * and open the template in the editor.
   4   */
   5  M.core_group = {
   6      hoveroverlay : null
   7  };
   8  
   9  M.core_group.init_hover_events = function(Y, events) {
  10      // Prepare the overlay if it hasn't already been created
  11      this.hoveroverlay = this.hoveroverlay || (function(){
  12          // New Y.Overlay
  13          var overlay = new Y.Overlay({
  14              bodyContent : 'Loading',
  15              visible : false,
  16              zIndex : 2
  17          });
  18          // Render it against the page
  19          overlay.render(Y.one('#page'));
  20          return overlay;
  21      })();
  22  
  23      Y.all('.group_hoverdescription').each(function() {
  24          var node = this.ancestor();
  25          var id = this.getAttribute('data-groupid');
  26  
  27          node.on('mouseenter', function(){
  28              M.core_group.hoveroverlay.set('xy', [this.getX()+(this.get('offsetWidth')/2),this.getY()+this.get('offsetHeight')-5]);
  29              M.core_group.hoveroverlay.set("bodyContent", events[id]);
  30              M.core_group.hoveroverlay.show();
  31              M.core_group.hoveroverlay.get('boundingBox').setStyle('visibility', 'visible');
  32          });
  33          node.on('mouseleave', function(){
  34              M.core_group.hoveroverlay.hide();
  35              M.core_group.hoveroverlay.get('boundingBox').setStyle('visibility', 'hidden');
  36          });
  37      });
  38  };
  39  
  40  M.core_group.init_index = function(Y, wwwroot, courseid) {
  41      M.core_group.groupsCombo = new UpdatableGroupsCombo(wwwroot, courseid);
  42      M.core_group.membersCombo = new UpdatableMembersCombo(wwwroot, courseid);
  43  };
  44  
  45  M.core_group.groupslist = function(Y, preventgroupremoval) {
  46      var actions = {
  47          init : function() {
  48              // We need to add check_deletable both on change for the groups, and then call it the first time the page loads
  49              Y.one('#groups').on('change', this.check_deletable, this);
  50              this.check_deletable();
  51          },
  52          check_deletable : function() {
  53              // Ensure that if the 'preventremoval' attribute is set, the delete button is greyed out
  54              var candelete = true;
  55              var optionselected = false;
  56              Y.one('#groups').get('options').each(function(option) {
  57                  if (option.get('selected')) {
  58                      optionselected = true;
  59                      if (option.getAttribute('value') in preventgroupremoval) {
  60                          candelete = false;
  61                      }
  62                  }
  63              }, this);
  64              var deletebutton = Y.one('#deletegroup');
  65              if (candelete && optionselected) {
  66                  deletebutton.removeAttribute('disabled');
  67              } else {
  68                  deletebutton.setAttribute('disabled', 'disabled');
  69              }
  70          }
  71      }
  72      actions.init();
  73  };