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   1  /**
   2   * Add a confirmation dialogue when cancelling a backup.
   3   *
   4   * @module moodle-backup-confirmcancel
   5   */
   6  
   7  /**
   8   * Add a confirmation dialogue when cancelling a backup.
   9   *
  10   * @class M.core_backup.confirmcancel
  11   */
  12  
  13  
  14  // Namespace for the backup.
  15  M.core_backup = M.core_backup || {};
  16  
  17  M.core_backup.confirmcancel = {
  18      /**
  19       * An array of EventHandlers which call the confirm_cancel dialogue.
  20       *
  21       * @property listeners
  22       * @protected
  23       * @type Array
  24       */
  25      listeners: [],
  26  
  27      /**
  28       * The configuration supplied to this instance.
  29       *
  30       * @property config
  31       * @protected
  32       * @type Object
  33       */
  34      config: {},
  35  
  36      /**
  37       * Initializer to watch all cancel buttons.
  38       *
  39       * @method watch_cancel_buttons
  40       * @param {Object} config The configuration for the confirmation dialogue.
  41       */
  42      watch_cancel_buttons: function(config) {
  43          this.config = config;
  44  
  45          this.listeners.push(
  46              Y.one(Y.config.doc.body).delegate('click', this.confirm_cancel, '.confirmcancel', this)
  47          );
  48      },
  49  
  50      /**
  51       * Display the confirmation dialogue.
  52       *
  53       * @method confirm_cancel
  54       * @protected
  55       * @param {EventFacade} e
  56       */
  57      confirm_cancel: function(e) {
  58          // Prevent the default event (submit) from firing.
  59          e.preventDefault();
  60  
  61          // Create the confirmation dialogue.
  62          var confirm = new M.core.confirm(this.config);
  63  
  64          // If the user clicks yes.
  65          confirm.on('complete-yes', function() {
  66              // Detach the listeners for the confirm box so they don't fire again.
  67              new Y.EventHandle(M.core_backup.confirmcancel.listeners).detach();
  68  
  69              // Simulate the original cancel button click.
  70              e.currentTarget.simulate('click');
  71          }, this);
  72  
  73  
  74          // Show the confirm box.
  75          confirm.show();
  76      }
  77  };