Function dragStarted

plugins/MultiDrag/MultiDrag.js:153–198

({ sortable })

		},

		dragStarted({ sortable }) {
			if (!this.isMultiDrag) return;
			if (this.options.sort) {
				// Capture rects,
				// hide multi drag elements (by positioning them absolute),
				// set multi drag elements rects to dragRect,
				// show multi drag elements,
				// animate to rects,
				// unset rects & remove from DOM

				sortable.captureAnimationState();

				if (this.options.animation) {
					multiDragElements.forEach(multiDragElement => {
						if (multiDragElement === dragEl) return;
						css(multiDragElement, 'position', 'absolute');
					});

					let dragRect = getRect(dragEl, false, true, true);

					multiDragElements.forEach(multiDragElement => {
						if (multiDragElement === dragEl) return;
						setRect(multiDragElement, dragRect);
					});

					folding = true;
					initialFolding = true;
				}
			}

			sortable.animateAll(() => {
				folding = false;
				initialFolding = false;

				if (this.options.animation) {
					multiDragElements.forEach(multiDragElement => {
						unsetRect(multiDragElement);
					});
				}

				// Remove all auxiliary multidrag items from el, if sorting enabled
				if (this.options.sort) {
					removeMultiDragElements();
				}
			});
		},

		dragOver({ target, completed, cancel }) {
			if (folding && ~multiDragElements.indexOf(target)) {