Function MultiDragPlugin

Sortable.js:2789–3331

()

    clonesFromRect,
    clonesHidden;
  function MultiDragPlugin() {
    function MultiDrag(sortable) {
      // Bind all private methods
      for (var fn in this) {
        if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
          this[fn] = this[fn].bind(this);
        }
      }
      if (!sortable.options.avoidImplicitDeselect) {
        if (sortable.options.supportPointer) {
          on(document, 'pointerup', this._deselectMultiDrag);
        } else {
          on(document, 'mouseup', this._deselectMultiDrag);
          on(document, 'touchend', this._deselectMultiDrag);
        }
      }
      on(document, 'keydown', this._checkKeyDown);
      on(document, 'keyup', this._checkKeyUp);
      this.defaults = {
        selectedClass: 'sortable-selected',
        multiDragKey: null,
        avoidImplicitDeselect: false,
        setData: function setData(dataTransfer, dragEl) {
          var data = '';
          if (multiDragElements.length && multiDragSortable === sortable) {
            multiDragElements.forEach(function (multiDragElement, i) {
              data += (!i ? '' : ', ') + multiDragElement.textContent;
            });
          } else {
            data = dragEl.textContent;
          }
          dataTransfer.setData('Text', data);
        }
      };
    }
    MultiDrag.prototype = {
      multiDragKeyDown: false,
      isMultiDrag: false,
      delayStartGlobal: function delayStartGlobal(_ref) {
        var dragged = _ref.dragEl;
        dragEl$1 = dragged;
      },
      delayEnded: function delayEnded() {
        this.isMultiDrag = ~multiDragElements.indexOf(dragEl$1);
      },
      setupClone: function setupClone(_ref2) {
        var sortable = _ref2.sortable,
          cancel = _ref2.cancel;
        if (!this.isMultiDrag) return;
        for (var i = 0; i < multiDragElements.length; i++) {
          multiDragClones.push(clone(multiDragElements[i]));
          multiDragClones[i].sortableIndex = multiDragElements[i].sortableIndex;
          multiDragClones[i].draggable = false;
          multiDragClones[i].style['will-change'] = '';
          toggleClass(multiDragClones[i], this.options.selectedClass, false);
          multiDragElements[i] === dragEl$1 && toggleClass(multiDragClones[i], this.options.chosenClass, false);
        }
        sortable._hideClone();