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// If 'splitOnEnter' url parameter is set to 'true', the split is executed automatically when pressing 'Enter'. 

 // In this case the content completion window can be accessed when pressing 'CTRL + Enter'.    

(function() {

  var splitOnEnter =  decodeURIComponent(sync.util.getURLParameter("splitOnEnter"));

  if (splitOnEnter === 'true') {

    goog.events.listen(workspace, sync.api.Workspace.EventType.EDITOR_LOADED, function(e) {

      var actionsManager = e.editor.getActionsManager();

    

      // Change the shortcut of "Enter" action to ctrl enter

      actionsManager.setActionShortcut('Author/Enter', 'ctrl enter');

    

      // Create "Split Element" action

      var splitElementAction = new sync.actions.SplitElementAtCaretAction('enter', e.editor.readOnlyStatus, e.editor.controller);

      // Create compound action that splits the element at cursor when there is no selection, and surrounds the selection

      // with the element chosen by the user otherwise

      var newEnterAction = new sync.actions.CompoundAction('enter',

        splitElementAction, actionsManager.getActionById('Author/SurroundWithElement'));

      // Register the new action to be executed on enter

      actionsManager.registerAction('Author/SplitOnEnter', newEnterAction);

    });



    /**

     * Action that splits the element at caret.

     *

     * @param {sync.model.ReadOnlyStatus} readOnlyStatus The read-only status of the document.

     * @param {string} keystrokeStr The string representation of the shortcut of the action.

     * @param {sync.ctrl.Controller} controller The document controller.

     * @constructor

     */

    sync.actions.SplitElementAtCaretAction = function(keystroke, readOnlyStatus, controller) {

      sync.actions.AbstractAction.call(this, keystroke);

      this.readOnlyStatus = readOnlyStatus;

      this.controller = controller;

    };

    goog.inherits(sync.actions.SplitElementAtCaretAction, sync.actions.AbstractAction);



    /**

     * The actual action execution.

     *

     * @param {function} callback The method to call after the action has completed.

     */

    sync.actions.SplitElementAtCaretAction.prototype.actionPerformed = function(opt_callback) {

      var params = { docId: this.controller.docId };

      sync.select.getSelection().extend(params);

      var controller = this.controller;

      RESTContentCompletionManager.splitElement(sync.util.extend(params, {

        $callback: function (httpCode, xmlHttpRequest, newDocumentUpdate) {

          try {

            controller.applyUpdate_(newDocumentUpdate);

          } finally {

            if (typeof opt_callback === 'function') {

              opt_callback();

            }

          }

        }

      }));

    };



    /** @override */

    sync.actions.SplitElementAtCaretAction.prototype.isEnabled = function() {

      return !this.readOnlyStatus.isReadOnly();

    };

  }

})();