src/expandCollapseUtilities.js
function (node) {
    if (node._private.data.collapsedChildren == null) {
      node.data('position-before-collapse', {
        x: node.position().x,
        y: node.position().y
      });

      node.data('size-before-collapse', {
        w: node.outerWidth(),
        h: node.outerHeight()
      });

      var children = node.children();

      children.unselect();
      children.connectedEdges().unselect();

      node.trigger("expandcollapse.beforecollapse");
      
      this.barrowEdgesOfcollapsedChildren(node);
      this.removeChildren(node, node);
      node.addClass('cy-expand-collapse-collapsed-node');

      node.trigger("expandcollapse.aftercollapse");
      
      node.position(node.data('position-before-collapse'));

      //return the node to undo the operation
      return node;
    }
  }
function (node) {
    if (node._private.data.collapsedChildren == null) {
      node.data('position-before-collapse', {
        x: node.position().x,
        y: node.position().y
      });

      node.data('size-before-collapse', {
        w: node.outerWidth(),
        h: node.outerHeight()
      });

      var children = node.children();

      children.unselect();
      children.connectedEdges().unselect();

      node.trigger("expandcollapse.beforecollapse");
      
      this.barrowEdgesOfcollapsedChildren(node);
      this.removeChildren(node, node);
      node.addClass('cy-expand-collapse-collapsed-node');

      node.trigger("expandcollapse.aftercollapse");
      
      node.position(node.data('position-before-collapse'));

      //return the node to undo the operation
      return node;
    }
  }
function ( node ) { if ( node . _private . data . collapsedChildren == null ) { node . data ( 'position-before-collapse' , { x : node . position ( ) . x , y : node . position ( ) . y } ) ; node . data ( 'size-before-collapse' , { w : node . outerWidth ( ) , h : node . outerHeight ( ) } ) ; var children = node . children ( ) ; children . unselect ( ) ; children . connectedEdges ( ) . unselect ( ) ; node . trigger ( "expandcollapse.beforecollapse" ) ; this . barrowEdgesOfcollapsedChildren ( node ) ; this . removeChildren ( node , node ) ; node . addClass ( 'cy-expand-collapse-collapsed-node' ) ; node . trigger ( "expandcollapse.aftercollapse" ) ; node . position ( node . data ( 'position-before-collapse' ) ) ; //return the node to undo the operation return node ; } }
collapse the given node without performing end operation
collapse the given node without performing end operation