Function MultiDragPlugin

modular/sortable.core.esm.js:2784–3326

()

  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();