/**!
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* Sortable
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* @author RubaXa <trash@rubaxa.org>
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* @author owenm <owen23355@gmail.com>
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* @license MIT
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*/
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import { version } from '../package.json';
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import { IE11OrLess, Edge, FireFox, Safari, IOS, ChromeForAndroid } from './BrowserInfo.js';
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import AnimationStateManager from './Animation.js';
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import PluginManager from './PluginManager.js';
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import dispatchEvent from './EventDispatcher.js';
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import {
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on,
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off,
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closest,
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toggleClass,
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css,
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matrix,
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find,
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getWindowScrollingElement,
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getRect,
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isScrolledPast,
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getChild,
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lastChild,
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index,
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getRelativeScrollOffset,
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extend,
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throttle,
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scrollBy,
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clone,
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expando
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} from './utils.js';
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let pluginEvent = function(eventName, sortable, { evt: originalEvent, ...data } = {}) {
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PluginManager.pluginEvent.bind(Sortable)(eventName, sortable, {
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dragEl,
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parentEl,
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ghostEl,
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rootEl,
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nextEl,
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lastDownEl,
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cloneEl,
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cloneHidden,
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dragStarted: moved,
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putSortable,
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activeSortable: Sortable.active,
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originalEvent,
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oldIndex,
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oldDraggableIndex,
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newIndex,
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newDraggableIndex,
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hideGhostForTarget: _hideGhostForTarget,
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unhideGhostForTarget: _unhideGhostForTarget,
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cloneNowHidden() {
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cloneHidden = true;
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},
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cloneNowShown() {
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cloneHidden = false;
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},
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dispatchSortableEvent(name) {
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_dispatchEvent({ sortable, name, originalEvent });
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},
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...data
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});
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};
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function _dispatchEvent(info) {
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dispatchEvent({
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putSortable,
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cloneEl,
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targetEl: dragEl,
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rootEl,
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oldIndex,
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oldDraggableIndex,
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newIndex,
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newDraggableIndex,
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...info
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});
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}
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let dragEl,
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parentEl,
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ghostEl,
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rootEl,
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nextEl,
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lastDownEl,
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cloneEl,
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cloneHidden,
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oldIndex,
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newIndex,
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oldDraggableIndex,
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newDraggableIndex,
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activeGroup,
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putSortable,
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awaitingDragStarted = false,
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ignoreNextClick = false,
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sortables = [],
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tapEvt,
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touchEvt,
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lastDx,
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lastDy,
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tapDistanceLeft,
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tapDistanceTop,
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moved,
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lastTarget,
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lastDirection,
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pastFirstInvertThresh = false,
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isCircumstantialInvert = false,
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targetMoveDistance,
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// For positioning ghost absolutely
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ghostRelativeParent,
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ghostRelativeParentInitialScroll = [], // (left, top)
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_silent = false,
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savedInputChecked = [];
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/** @const */
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const documentExists = typeof document !== 'undefined',
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PositionGhostAbsolutely = IOS,
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CSSFloatProperty = Edge || IE11OrLess ? 'cssFloat' : 'float',
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// This will not pass for IE9, because IE9 DnD only works on anchors
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supportDraggable = documentExists && !ChromeForAndroid && !IOS && ('draggable' in document.createElement('div')),
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supportCssPointerEvents = (function() {
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if (!documentExists) return;
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// false when <= IE11
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if (IE11OrLess) {
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return false;
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}
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let el = document.createElement('x');
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el.style.cssText = 'pointer-events:auto';
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return el.style.pointerEvents === 'auto';
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})(),
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_detectDirection = function(el, options) {
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let elCSS = css(el),
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elWidth = parseInt(elCSS.width)
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- parseInt(elCSS.paddingLeft)
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- parseInt(elCSS.paddingRight)
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- parseInt(elCSS.borderLeftWidth)
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- parseInt(elCSS.borderRightWidth),
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child1 = getChild(el, 0, options),
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child2 = getChild(el, 1, options),
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firstChildCSS = child1 && css(child1),
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secondChildCSS = child2 && css(child2),
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firstChildWidth = firstChildCSS && parseInt(firstChildCSS.marginLeft) + parseInt(firstChildCSS.marginRight) + getRect(child1).width,
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secondChildWidth = secondChildCSS && parseInt(secondChildCSS.marginLeft) + parseInt(secondChildCSS.marginRight) + getRect(child2).width;
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if (elCSS.display === 'flex') {
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return elCSS.flexDirection === 'column' || elCSS.flexDirection === 'column-reverse'
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? 'vertical' : 'horizontal';
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}
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if (elCSS.display === 'grid') {
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return elCSS.gridTemplateColumns.split(' ').length <= 1 ? 'vertical' : 'horizontal';
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}
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if (child1 && firstChildCSS.float && firstChildCSS.float !== 'none') {
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let touchingSideChild2 = firstChildCSS.float === 'left' ? 'left' : 'right';
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return child2 && (secondChildCSS.clear === 'both' || secondChildCSS.clear === touchingSideChild2) ?
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'vertical' : 'horizontal';
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}
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return (child1 &&
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(
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firstChildCSS.display === 'block' ||
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firstChildCSS.display === 'flex' ||
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firstChildCSS.display === 'table' ||
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firstChildCSS.display === 'grid' ||
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firstChildWidth >= elWidth &&
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elCSS[CSSFloatProperty] === 'none' ||
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child2 &&
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elCSS[CSSFloatProperty] === 'none' &&
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firstChildWidth + secondChildWidth > elWidth
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) ?
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'vertical' : 'horizontal'
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);
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},
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_dragElInRowColumn = function(dragRect, targetRect, vertical) {
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let dragElS1Opp = vertical ? dragRect.left : dragRect.top,
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dragElS2Opp = vertical ? dragRect.right : dragRect.bottom,
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dragElOppLength = vertical ? dragRect.width : dragRect.height,
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targetS1Opp = vertical ? targetRect.left : targetRect.top,
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targetS2Opp = vertical ? targetRect.right : targetRect.bottom,
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targetOppLength = vertical ? targetRect.width : targetRect.height;
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return (
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dragElS1Opp === targetS1Opp ||
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dragElS2Opp === targetS2Opp ||
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(dragElS1Opp + dragElOppLength / 2) === (targetS1Opp + targetOppLength / 2)
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);
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},
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/**
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* Detects first nearest empty sortable to X and Y position using emptyInsertThreshold.
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* @param {Number} x X position
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* @param {Number} y Y position
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* @return {HTMLElement} Element of the first found nearest Sortable
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*/
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_detectNearestEmptySortable = function(x, y) {
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let ret;
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sortables.some((sortable) => {
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if (lastChild(sortable)) return;
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let rect = getRect(sortable),
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threshold = sortable[expando].options.emptyInsertThreshold,
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insideHorizontally = x >= (rect.left - threshold) && x <= (rect.right + threshold),
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insideVertically = y >= (rect.top - threshold) && y <= (rect.bottom + threshold);
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if (threshold && insideHorizontally && insideVertically) {
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return (ret = sortable);
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}
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});
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return ret;
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},
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_prepareGroup = function (options) {
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function toFn(value, pull) {
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return function(to, from, dragEl, evt) {
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let sameGroup = to.options.group.name &&
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from.options.group.name &&
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to.options.group.name === from.options.group.name;
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if (value == null && (pull || sameGroup)) {
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// Default pull value
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// Default pull and put value if same group
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return true;
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} else if (value == null || value === false) {
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return false;
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} else if (pull && value === 'clone') {
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return value;
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} else if (typeof value === 'function') {
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return toFn(value(to, from, dragEl, evt), pull)(to, from, dragEl, evt);
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} else {
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let otherGroup = (pull ? to : from).options.group.name;
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return (value === true ||
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(typeof value === 'string' && value === otherGroup) ||
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(value.join && value.indexOf(otherGroup) > -1));
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}
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};
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}
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let group = {};
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let originalGroup = options.group;
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if (!originalGroup || typeof originalGroup != 'object') {
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originalGroup = {name: originalGroup};
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}
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group.name = originalGroup.name;
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group.checkPull = toFn(originalGroup.pull, true);
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group.checkPut = toFn(originalGroup.put);
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group.revertClone = originalGroup.revertClone;
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options.group = group;
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},
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_hideGhostForTarget = function() {
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if (!supportCssPointerEvents && ghostEl) {
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css(ghostEl, 'display', 'none');
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}
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},
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_unhideGhostForTarget = function() {
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if (!supportCssPointerEvents && ghostEl) {
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css(ghostEl, 'display', '');
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}
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};
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// #1184 fix - Prevent click event on fallback if dragged but item not changed position
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if (documentExists) {
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document.addEventListener('click', function(evt) {
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if (ignoreNextClick) {
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evt.preventDefault();
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evt.stopPropagation && evt.stopPropagation();
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evt.stopImmediatePropagation && evt.stopImmediatePropagation();
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ignoreNextClick = false;
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return false;
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}
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}, true);
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}
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let nearestEmptyInsertDetectEvent = function(evt) {
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if (dragEl) {
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evt = evt.touches ? evt.touches[0] : evt;
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let nearest = _detectNearestEmptySortable(evt.clientX, evt.clientY);
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if (nearest) {
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// Create imitation event
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let event = {};
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for (let i in evt) {
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if (evt.hasOwnProperty(i)) {
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event[i] = evt[i];
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}
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}
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event.target = event.rootEl = nearest;
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event.preventDefault = void 0;
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event.stopPropagation = void 0;
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nearest[expando]._onDragOver(event);
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}
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}
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};
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let _checkOutsideTargetEl = function(evt) {
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if (dragEl) {
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dragEl.parentNode[expando]._isOutsideThisEl(evt.target);
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}
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};
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/**
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* @class Sortable
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* @param {HTMLElement} el
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* @param {Object} [options]
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*/
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function Sortable(el, options) {
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if (!(el && el.nodeType && el.nodeType === 1)) {
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throw `Sortable: \`el\` must be an HTMLElement, not ${ {}.toString.call(el) }`;
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}
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this.el = el; // root element
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this.options = options = Object.assign({}, options);
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// Export instance
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el[expando] = this;
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let defaults = {
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group: null,
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sort: true,
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disabled: false,
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store: null,
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handle: null,
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draggable: /^[uo]l$/i.test(el.nodeName) ? '>li' : '>*',
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swapThreshold: 1, // percentage; 0 <= x <= 1
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invertSwap: false, // invert always
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invertedSwapThreshold: null, // will be set to same as swapThreshold if default
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removeCloneOnHide: true,
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direction: function() {
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return _detectDirection(el, this.options);
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},
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ghostClass: 'sortable-ghost',
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chosenClass: 'sortable-chosen',
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dragClass: 'sortable-drag',
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ignore: 'a, img',
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filter: null,
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preventOnFilter: true,
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animation: 0,
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easing: null,
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setData: function (dataTransfer, dragEl) {
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dataTransfer.setData('Text', dragEl.textContent);
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},
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dropBubble: false,
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dragoverBubble: false,
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dataIdAttr: 'data-id',
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delay: 0,
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delayOnTouchOnly: false,
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touchStartThreshold: (Number.parseInt ? Number : window).parseInt(window.devicePixelRatio, 10) || 1,
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forceFallback: false,
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fallbackClass: 'sortable-fallback',
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fallbackOnBody: false,
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fallbackTolerance: 0,
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fallbackOffset: {x: 0, y: 0},
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supportPointer: Sortable.supportPointer !== false && ('PointerEvent' in window),
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emptyInsertThreshold: 5
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};
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PluginManager.initializePlugins(this, el, defaults);
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// Set default options
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for (let name in defaults) {
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!(name in options) && (options[name] = defaults[name]);
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}
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_prepareGroup(options);
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// Bind all private methods
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for (let fn in this) {
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if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
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this[fn] = this[fn].bind(this);
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}
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}
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// Setup drag mode
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this.nativeDraggable = options.forceFallback ? false : supportDraggable;
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if (this.nativeDraggable) {
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// Touch start threshold cannot be greater than the native dragstart threshold
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this.options.touchStartThreshold = 1;
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}
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// Bind events
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if (options.supportPointer) {
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on(el, 'pointerdown', this._onTapStart);
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} else {
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on(el, 'mousedown', this._onTapStart);
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on(el, 'touchstart', this._onTapStart);
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}
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if (this.nativeDraggable) {
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on(el, 'dragover', this);
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on(el, 'dragenter', this);
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}
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sortables.push(this.el);
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// Restore sorting
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options.store && options.store.get && this.sort(options.store.get(this) || []);
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// Add animation state manager
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Object.assign(this, AnimationStateManager());
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}
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Sortable.prototype = /** @lends Sortable.prototype */ {
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constructor: Sortable,
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_isOutsideThisEl: function(target) {
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if (!this.el.contains(target) && target !== this.el) {
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lastTarget = null;
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}
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},
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_getDirection: function(evt, target) {
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return (typeof this.options.direction === 'function') ? this.options.direction.call(this, evt, target, dragEl) : this.options.direction;
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},
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_onTapStart: function (/** Event|TouchEvent */evt) {
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if (!evt.cancelable) return;
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let _this = this,
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el = this.el,
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options = this.options,
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preventOnFilter = options.preventOnFilter,
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type = evt.type,
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touch = (evt.touches && evt.touches[0]) || (evt.pointerType && evt.pointerType === 'touch' && evt),
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target = (touch || evt).target,
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originalTarget = evt.target.shadowRoot && ((evt.path && evt.path[0]) || (evt.composedPath && evt.composedPath()[0])) || target,
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filter = options.filter;
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_saveInputCheckedState(el);
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// Don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.
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if (dragEl) {
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return;
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}
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if (/mousedown|pointerdown/.test(type) && evt.button !== 0 || options.disabled) {
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return; // only left button and enabled
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}
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// cancel dnd if original target is content editable
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if (originalTarget.isContentEditable) {
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return;
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}
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target = closest(target, options.draggable, el, false);
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if (target && target.animated) {
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return;
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}
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if (lastDownEl === target) {
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// Ignoring duplicate `down`
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return;
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}
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// Get the index of the dragged element within its parent
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oldIndex = index(target);
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oldDraggableIndex = index(target, options.draggable);
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// Check filter
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if (typeof filter === 'function') {
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if (filter.call(this, evt, target, this)) {
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_dispatchEvent({
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sortable: _this,
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rootEl: originalTarget,
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name: 'filter',
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targetEl: target,
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toEl: el,
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fromEl: el
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});
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pluginEvent('filter', _this, { evt });
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preventOnFilter && evt.cancelable && evt.preventDefault();
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return; // cancel dnd
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}
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}
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else if (filter) {
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filter = filter.split(',').some(function (criteria) {
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criteria = closest(originalTarget, criteria.trim(), el, false);
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if (criteria) {
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_dispatchEvent({
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sortable: _this,
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rootEl: criteria,
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name: 'filter',
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targetEl: target,
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fromEl: el,
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toEl: el
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});
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pluginEvent('filter', _this, { evt });
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return true;
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}
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});
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if (filter) {
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preventOnFilter && evt.cancelable && evt.preventDefault();
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return; // cancel dnd
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}
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}
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if (options.handle && !closest(originalTarget, options.handle, el, false)) {
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return;
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}
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// Prepare `dragstart`
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this._prepareDragStart(evt, touch, target);
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},
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_prepareDragStart: function (/** Event */evt, /** Touch */touch, /** HTMLElement */target) {
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let _this = this,
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el = _this.el,
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options = _this.options,
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ownerDocument = el.ownerDocument,
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dragStartFn;
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if (target && !dragEl && (target.parentNode === el)) {
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let dragRect = getRect(target);
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rootEl = el;
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dragEl = target;
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parentEl = dragEl.parentNode;
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nextEl = dragEl.nextSibling;
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lastDownEl = target;
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activeGroup = options.group;
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Sortable.dragged = dragEl;
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tapEvt = {
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target: dragEl,
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clientX: (touch || evt).clientX,
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clientY: (touch || evt).clientY
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};
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tapDistanceLeft = tapEvt.clientX - dragRect.left;
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tapDistanceTop = tapEvt.clientY - dragRect.top;
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this._lastX = (touch || evt).clientX;
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this._lastY = (touch || evt).clientY;
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dragEl.style['will-change'] = 'all';
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dragStartFn = function () {
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pluginEvent('delayEnded', _this, { evt });
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if (Sortable.eventCanceled) {
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_this._onDrop();
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return;
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}
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// Delayed drag has been triggered
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// we can re-enable the events: touchmove/mousemove
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_this._disableDelayedDragEvents();
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if (!FireFox && _this.nativeDraggable) {
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dragEl.draggable = true;
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}
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// Bind the events: dragstart/dragend
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_this._triggerDragStart(evt, touch);
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// Drag start event
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_dispatchEvent({
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sortable: _this,
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name: 'choose',
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originalEvent: evt
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});
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// Chosen item
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toggleClass(dragEl, options.chosenClass, true);
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};
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// Disable "draggable"
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options.ignore.split(',').forEach(function (criteria) {
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find(dragEl, criteria.trim(), _disableDraggable);
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});
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on(ownerDocument, 'dragover', nearestEmptyInsertDetectEvent);
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on(ownerDocument, 'mousemove', nearestEmptyInsertDetectEvent);
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on(ownerDocument, 'touchmove', nearestEmptyInsertDetectEvent);
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on(ownerDocument, 'mouseup', _this._onDrop);
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on(ownerDocument, 'touchend', _this._onDrop);
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on(ownerDocument, 'touchcancel', _this._onDrop);
|
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// Make dragEl draggable (must be before delay for FireFox)
|
if (FireFox && this.nativeDraggable) {
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this.options.touchStartThreshold = 4;
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dragEl.draggable = true;
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}
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pluginEvent('delayStart', this, { evt });
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// Delay is impossible for native DnD in Edge or IE
|
if (options.delay && (!options.delayOnTouchOnly || touch) && (!this.nativeDraggable || !(Edge || IE11OrLess))) {
|
if (Sortable.eventCanceled) {
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this._onDrop();
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return;
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}
|
// If the user moves the pointer or let go the click or touch
|
// before the delay has been reached:
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// disable the delayed drag
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on(ownerDocument, 'mouseup', _this._disableDelayedDrag);
|
on(ownerDocument, 'touchend', _this._disableDelayedDrag);
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on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
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on(ownerDocument, 'mousemove', _this._delayedDragTouchMoveHandler);
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on(ownerDocument, 'touchmove', _this._delayedDragTouchMoveHandler);
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options.supportPointer && on(ownerDocument, 'pointermove', _this._delayedDragTouchMoveHandler);
|
|
_this._dragStartTimer = setTimeout(dragStartFn, options.delay);
|
} else {
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dragStartFn();
|
}
|
}
|
},
|
|
_delayedDragTouchMoveHandler: function (/** TouchEvent|PointerEvent **/e) {
|
let touch = e.touches ? e.touches[0] : e;
|
if (Math.max(Math.abs(touch.clientX - this._lastX), Math.abs(touch.clientY - this._lastY))
|
>= Math.floor(this.options.touchStartThreshold / (this.nativeDraggable && window.devicePixelRatio || 1))
|
) {
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this._disableDelayedDrag();
|
}
|
},
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_disableDelayedDrag: function () {
|
dragEl && _disableDraggable(dragEl);
|
clearTimeout(this._dragStartTimer);
|
|
this._disableDelayedDragEvents();
|
},
|
|
_disableDelayedDragEvents: function () {
|
let ownerDocument = this.el.ownerDocument;
|
off(ownerDocument, 'mouseup', this._disableDelayedDrag);
|
off(ownerDocument, 'touchend', this._disableDelayedDrag);
|
off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
|
off(ownerDocument, 'mousemove', this._delayedDragTouchMoveHandler);
|
off(ownerDocument, 'touchmove', this._delayedDragTouchMoveHandler);
|
off(ownerDocument, 'pointermove', this._delayedDragTouchMoveHandler);
|
},
|
|
_triggerDragStart: function (/** Event */evt, /** Touch */touch) {
|
touch = touch || (evt.pointerType == 'touch' && evt);
|
|
if (!this.nativeDraggable || touch) {
|
if (this.options.supportPointer) {
|
on(document, 'pointermove', this._onTouchMove);
|
} else if (touch) {
|
on(document, 'touchmove', this._onTouchMove);
|
} else {
|
on(document, 'mousemove', this._onTouchMove);
|
}
|
} else {
|
on(dragEl, 'dragend', this);
|
on(rootEl, 'dragstart', this._onDragStart);
|
}
|
|
try {
|
if (document.selection) {
|
// Timeout neccessary for IE9
|
_nextTick(function () {
|
document.selection.empty();
|
});
|
} else {
|
window.getSelection().removeAllRanges();
|
}
|
} catch (err) {
|
}
|
},
|
|
_dragStarted: function (fallback, evt) {
|
let _this = this;
|
awaitingDragStarted = false;
|
if (rootEl && dragEl) {
|
pluginEvent('dragStarted', this, { evt });
|
|
if (this.nativeDraggable) {
|
on(document, 'dragover', _checkOutsideTargetEl);
|
}
|
let options = this.options;
|
|
// Apply effect
|
!fallback && toggleClass(dragEl, options.dragClass, false);
|
toggleClass(dragEl, options.ghostClass, true);
|
|
Sortable.active = this;
|
|
fallback && this._appendGhost();
|
|
// Drag start event
|
_dispatchEvent({
|
sortable: this,
|
name: 'start',
|
originalEvent: evt
|
});
|
} else {
|
this._nulling();
|
}
|
},
|
|
_emulateDragOver: function () {
|
if (touchEvt) {
|
this._lastX = touchEvt.clientX;
|
this._lastY = touchEvt.clientY;
|
|
_hideGhostForTarget();
|
|
let target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
|
let parent = target;
|
|
while (target && target.shadowRoot) {
|
target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
|
if (target === parent) break;
|
parent = target;
|
}
|
|
dragEl.parentNode[expando]._isOutsideThisEl(target);
|
|
if (parent) {
|
do {
|
if (parent[expando]) {
|
let inserted;
|
|
inserted = parent[expando]._onDragOver({
|
clientX: touchEvt.clientX,
|
clientY: touchEvt.clientY,
|
target: target,
|
rootEl: parent
|
});
|
|
if (inserted && !this.options.dragoverBubble) {
|
break;
|
}
|
}
|
|
target = parent; // store last element
|
}
|
/* jshint boss:true */
|
while (parent = parent.parentNode);
|
}
|
|
_unhideGhostForTarget();
|
}
|
},
|
|
|
_onTouchMove: function (/**TouchEvent*/evt) {
|
if (tapEvt) {
|
let options = this.options,
|
fallbackTolerance = options.fallbackTolerance,
|
fallbackOffset = options.fallbackOffset,
|
touch = evt.touches ? evt.touches[0] : evt,
|
ghostMatrix = ghostEl && matrix(ghostEl, true),
|
scaleX = ghostEl && ghostMatrix && ghostMatrix.a,
|
scaleY = ghostEl && ghostMatrix && ghostMatrix.d,
|
relativeScrollOffset = PositionGhostAbsolutely && ghostRelativeParent && getRelativeScrollOffset(ghostRelativeParent),
|
dx = ((touch.clientX - tapEvt.clientX)
|
+ fallbackOffset.x) / (scaleX || 1)
|
+ (relativeScrollOffset ? (relativeScrollOffset[0] - ghostRelativeParentInitialScroll[0]) : 0) / (scaleX || 1),
|
dy = ((touch.clientY - tapEvt.clientY)
|
+ fallbackOffset.y) / (scaleY || 1)
|
+ (relativeScrollOffset ? (relativeScrollOffset[1] - ghostRelativeParentInitialScroll[1]) : 0) / (scaleY || 1);
|
|
// only set the status to dragging, when we are actually dragging
|
if (!Sortable.active && !awaitingDragStarted) {
|
if (fallbackTolerance &&
|
Math.max(Math.abs(touch.clientX - this._lastX), Math.abs(touch.clientY - this._lastY)) < fallbackTolerance
|
) {
|
return;
|
}
|
this._onDragStart(evt, true);
|
}
|
|
if (ghostEl) {
|
if (ghostMatrix) {
|
ghostMatrix.e += dx - (lastDx || 0);
|
ghostMatrix.f += dy - (lastDy || 0);
|
} else {
|
ghostMatrix = {
|
a: 1,
|
b: 0,
|
c: 0,
|
d: 1,
|
e: dx,
|
f: dy
|
};
|
}
|
|
let cssMatrix = `matrix(${ghostMatrix.a},${ghostMatrix.b},${ghostMatrix.c},${ghostMatrix.d},${ghostMatrix.e},${ghostMatrix.f})`;
|
|
css(ghostEl, 'webkitTransform', cssMatrix);
|
css(ghostEl, 'mozTransform', cssMatrix);
|
css(ghostEl, 'msTransform', cssMatrix);
|
css(ghostEl, 'transform', cssMatrix);
|
|
lastDx = dx;
|
lastDy = dy;
|
|
touchEvt = touch;
|
}
|
|
evt.cancelable && evt.preventDefault();
|
}
|
},
|
|
_appendGhost: function () {
|
// Bug if using scale(): https://stackoverflow.com/questions/2637058
|
// Not being adjusted for
|
if (!ghostEl) {
|
let container = this.options.fallbackOnBody ? document.body : rootEl,
|
rect = getRect(dragEl, true, PositionGhostAbsolutely, true, container),
|
options = this.options;
|
|
// Position absolutely
|
if (PositionGhostAbsolutely) {
|
// Get relatively positioned parent
|
ghostRelativeParent = container;
|
|
while (
|
css(ghostRelativeParent, 'position') === 'static' &&
|
css(ghostRelativeParent, 'transform') === 'none' &&
|
ghostRelativeParent !== document
|
) {
|
ghostRelativeParent = ghostRelativeParent.parentNode;
|
}
|
|
if (ghostRelativeParent !== document.body && ghostRelativeParent !== document.documentElement) {
|
if (ghostRelativeParent === document) ghostRelativeParent = getWindowScrollingElement();
|
|
rect.top += ghostRelativeParent.scrollTop;
|
rect.left += ghostRelativeParent.scrollLeft;
|
} else {
|
ghostRelativeParent = getWindowScrollingElement();
|
}
|
ghostRelativeParentInitialScroll = getRelativeScrollOffset(ghostRelativeParent);
|
}
|
|
|
ghostEl = dragEl.cloneNode(true);
|
|
toggleClass(ghostEl, options.ghostClass, false);
|
toggleClass(ghostEl, options.fallbackClass, true);
|
toggleClass(ghostEl, options.dragClass, true);
|
|
css(ghostEl, 'transition', '');
|
css(ghostEl, 'transform', '');
|
|
css(ghostEl, 'box-sizing', 'border-box');
|
css(ghostEl, 'margin', 0);
|
css(ghostEl, 'top', rect.top);
|
css(ghostEl, 'left', rect.left);
|
css(ghostEl, 'width', rect.width);
|
css(ghostEl, 'height', rect.height);
|
css(ghostEl, 'opacity', '0.8');
|
css(ghostEl, 'position', (PositionGhostAbsolutely ? 'absolute' : 'fixed'));
|
css(ghostEl, 'zIndex', '100000');
|
css(ghostEl, 'pointerEvents', 'none');
|
|
|
Sortable.ghost = ghostEl;
|
|
container.appendChild(ghostEl);
|
|
// Set transform-origin
|
css(ghostEl, 'transform-origin', (tapDistanceLeft / parseInt(ghostEl.style.width) * 100) + '% ' + (tapDistanceTop / parseInt(ghostEl.style.height) * 100) + '%');
|
}
|
},
|
|
_onDragStart: function (/**Event*/evt, /**boolean*/fallback) {
|
let _this = this;
|
let dataTransfer = evt.dataTransfer;
|
let options = _this.options;
|
|
pluginEvent('dragStart', this, { evt });
|
if (Sortable.eventCanceled) {
|
this._onDrop();
|
return;
|
}
|
|
pluginEvent('setupClone', this);
|
if (!Sortable.eventCanceled) {
|
cloneEl = clone(dragEl);
|
|
cloneEl.draggable = false;
|
cloneEl.style['will-change'] = '';
|
|
this._hideClone();
|
|
toggleClass(cloneEl, this.options.chosenClass, false);
|
Sortable.clone = cloneEl;
|
}
|
|
|
// #1143: IFrame support workaround
|
_this.cloneId = _nextTick(function() {
|
pluginEvent('clone', _this);
|
if (Sortable.eventCanceled) return;
|
|
if (!_this.options.removeCloneOnHide) {
|
rootEl.insertBefore(cloneEl, dragEl);
|
}
|
_this._hideClone();
|
|
_dispatchEvent({
|
sortable: _this,
|
name: 'clone'
|
});
|
});
|
|
|
!fallback && toggleClass(dragEl, options.dragClass, true);
|
|
// Set proper drop events
|
if (fallback) {
|
ignoreNextClick = true;
|
_this._loopId = setInterval(_this._emulateDragOver, 50);
|
} else {
|
// Undo what was set in _prepareDragStart before drag started
|
off(document, 'mouseup', _this._onDrop);
|
off(document, 'touchend', _this._onDrop);
|
off(document, 'touchcancel', _this._onDrop);
|
|
if (dataTransfer) {
|
dataTransfer.effectAllowed = 'move';
|
options.setData && options.setData.call(_this, dataTransfer, dragEl);
|
}
|
|
on(document, 'drop', _this);
|
|
// #1276 fix:
|
css(dragEl, 'transform', 'translateZ(0)');
|
}
|
|
awaitingDragStarted = true;
|
|
_this._dragStartId = _nextTick(_this._dragStarted.bind(_this, fallback, evt));
|
on(document, 'selectstart', _this);
|
|
moved = true;
|
|
if (Safari) {
|
css(document.body, 'user-select', 'none');
|
}
|
},
|
|
|
// Returns true - if no further action is needed (either inserted or another condition)
|
_onDragOver: function (/**Event*/evt) {
|
let el = this.el,
|
target = evt.target,
|
dragRect,
|
targetRect,
|
revert,
|
options = this.options,
|
group = options.group,
|
activeSortable = Sortable.active,
|
isOwner = (activeGroup === group),
|
canSort = options.sort,
|
fromSortable = (putSortable || activeSortable),
|
vertical,
|
_this = this,
|
completedFired = false;
|
|
if (_silent) return;
|
|
function dragOverEvent(name, extra) {
|
pluginEvent(name, _this, {
|
evt,
|
isOwner,
|
axis: vertical ? 'vertical' : 'horizontal',
|
revert,
|
dragRect,
|
targetRect,
|
canSort,
|
fromSortable,
|
target,
|
completed,
|
onMove(target, after) {
|
return onMove(rootEl, el, dragEl, dragRect, target, getRect(target), evt, after);
|
},
|
changed,
|
...extra
|
});
|
}
|
|
// Capture animation state
|
function capture() {
|
dragOverEvent('dragOverAnimationCapture');
|
|
_this.captureAnimationState();
|
if (_this !== fromSortable) {
|
fromSortable.captureAnimationState();
|
}
|
}
|
|
// Return invocation when dragEl is inserted (or completed)
|
function completed(insertion) {
|
dragOverEvent('dragOverCompleted', { insertion });
|
|
if (insertion) {
|
// Clones must be hidden before folding animation to capture dragRectAbsolute properly
|
if (isOwner) {
|
activeSortable._hideClone();
|
} else {
|
activeSortable._showClone(_this);
|
}
|
|
if (_this !== fromSortable) {
|
// Set ghost class to new sortable's ghost class
|
toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : activeSortable.options.ghostClass, false);
|
toggleClass(dragEl, options.ghostClass, true);
|
}
|
|
if (putSortable !== _this && _this !== Sortable.active) {
|
putSortable = _this;
|
} else if (_this === Sortable.active && putSortable) {
|
putSortable = null;
|
}
|
|
// Animation
|
if (fromSortable === _this) {
|
_this._ignoreWhileAnimating = target;
|
}
|
_this.animateAll(function() {
|
dragOverEvent('dragOverAnimationComplete');
|
_this._ignoreWhileAnimating = null;
|
});
|
if (_this !== fromSortable) {
|
fromSortable.animateAll();
|
fromSortable._ignoreWhileAnimating = null;
|
}
|
}
|
|
|
// Null lastTarget if it is not inside a previously swapped element
|
if ((target === dragEl && !dragEl.animated) || (target === el && !target.animated)) {
|
lastTarget = null;
|
}
|
|
// no bubbling and not fallback
|
if (!options.dragoverBubble && !evt.rootEl && target !== document) {
|
dragEl.parentNode[expando]._isOutsideThisEl(evt.target);
|
|
// Do not detect for empty insert if already inserted
|
!insertion && nearestEmptyInsertDetectEvent(evt);
|
}
|
|
!options.dragoverBubble && evt.stopPropagation && evt.stopPropagation();
|
|
return (completedFired = true);
|
}
|
|
// Call when dragEl has been inserted
|
function changed() {
|
newIndex = index(dragEl);
|
newDraggableIndex = index(dragEl, options.draggable);
|
_dispatchEvent({
|
sortable: _this,
|
name: 'change',
|
toEl: el,
|
newIndex,
|
newDraggableIndex,
|
originalEvent: evt
|
});
|
}
|
|
|
if (evt.preventDefault !== void 0) {
|
evt.cancelable && evt.preventDefault();
|
}
|
|
|
target = closest(target, options.draggable, el, true);
|
|
dragOverEvent('dragOver');
|
if (Sortable.eventCanceled) return completedFired;
|
|
if (
|
dragEl.contains(evt.target) ||
|
target.animated && target.animatingX && target.animatingY ||
|
_this._ignoreWhileAnimating === target
|
) {
|
return completed(false);
|
}
|
|
ignoreNextClick = false;
|
|
if (activeSortable && !options.disabled &&
|
(isOwner
|
? canSort || (revert = !rootEl.contains(dragEl)) // Reverting item into the original list
|
: (
|
putSortable === this ||
|
(
|
(this.lastPutMode = activeGroup.checkPull(this, activeSortable, dragEl, evt)) &&
|
group.checkPut(this, activeSortable, dragEl, evt)
|
)
|
)
|
)
|
) {
|
vertical = this._getDirection(evt, target) === 'vertical';
|
|
dragRect = getRect(dragEl);
|
|
dragOverEvent('dragOverValid');
|
if (Sortable.eventCanceled) return completedFired;
|
|
if (revert) {
|
parentEl = rootEl; // actualization
|
capture();
|
|
this._hideClone();
|
|
dragOverEvent('revert');
|
|
if (!Sortable.eventCanceled) {
|
if (nextEl) {
|
rootEl.insertBefore(dragEl, nextEl);
|
} else {
|
rootEl.appendChild(dragEl);
|
}
|
}
|
|
return completed(true);
|
}
|
|
let elLastChild = lastChild(el, options.draggable);
|
|
if (!elLastChild || _ghostIsLast(evt, vertical, this) && !elLastChild.animated) {
|
// If already at end of list: Do not insert
|
if (elLastChild === dragEl) {
|
return completed(false);
|
}
|
|
// assign target only if condition is true
|
if (elLastChild && el === evt.target) {
|
target = elLastChild;
|
}
|
|
if (target) {
|
targetRect = getRect(target);
|
}
|
|
if (onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
|
capture();
|
el.appendChild(dragEl);
|
parentEl = el; // actualization
|
|
changed();
|
return completed(true);
|
}
|
}
|
else if (target.parentNode === el) {
|
targetRect = getRect(target);
|
let direction = 0,
|
targetBeforeFirstSwap,
|
differentLevel = dragEl.parentNode !== el,
|
differentRowCol = !_dragElInRowColumn(dragEl.animated && dragEl.toRect || dragRect, target.animated && target.toRect || targetRect, vertical),
|
side1 = vertical ? 'top' : 'left',
|
scrolledPastTop = isScrolledPast(target, 'top', 'top') || isScrolledPast(dragEl, 'top', 'top'),
|
scrollBefore = scrolledPastTop ? scrolledPastTop.scrollTop : void 0;
|
|
|
if (lastTarget !== target) {
|
targetBeforeFirstSwap = targetRect[side1];
|
pastFirstInvertThresh = false;
|
isCircumstantialInvert = (!differentRowCol && options.invertSwap) || differentLevel;
|
}
|
|
direction = _getSwapDirection(
|
evt, target, targetRect, vertical,
|
differentRowCol ? 1 : options.swapThreshold,
|
options.invertedSwapThreshold == null ? options.swapThreshold : options.invertedSwapThreshold,
|
isCircumstantialInvert,
|
lastTarget === target
|
);
|
|
let sibling;
|
|
if (direction !== 0) {
|
// Check if target is beside dragEl in respective direction (ignoring hidden elements)
|
let dragIndex = index(dragEl);
|
|
do {
|
dragIndex -= direction;
|
sibling = parentEl.children[dragIndex];
|
} while (sibling && (css(sibling, 'display') === 'none' || sibling === ghostEl));
|
}
|
// If dragEl is already beside target: Do not insert
|
if (
|
direction === 0 ||
|
sibling === target
|
) {
|
return completed(false);
|
}
|
|
lastTarget = target;
|
|
lastDirection = direction;
|
|
let nextSibling = target.nextElementSibling,
|
after = false;
|
|
after = direction === 1;
|
|
let moveVector = onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, after);
|
|
if (moveVector !== false) {
|
if (moveVector === 1 || moveVector === -1) {
|
after = (moveVector === 1);
|
}
|
|
_silent = true;
|
setTimeout(_unsilent, 30);
|
|
capture();
|
|
if (after && !nextSibling) {
|
el.appendChild(dragEl);
|
} else {
|
target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
|
}
|
|
// Undo chrome's scroll adjustment (has no effect on other browsers)
|
if (scrolledPastTop) {
|
scrollBy(scrolledPastTop, 0, scrollBefore - scrolledPastTop.scrollTop);
|
}
|
|
parentEl = dragEl.parentNode; // actualization
|
|
// must be done before animation
|
if (targetBeforeFirstSwap !== undefined && !isCircumstantialInvert) {
|
targetMoveDistance = Math.abs(targetBeforeFirstSwap - getRect(target)[side1]);
|
}
|
changed();
|
|
return completed(true);
|
}
|
}
|
|
if (el.contains(dragEl)) {
|
return completed(false);
|
}
|
}
|
|
return false;
|
},
|
|
_ignoreWhileAnimating: null,
|
|
_offMoveEvents: function() {
|
off(document, 'mousemove', this._onTouchMove);
|
off(document, 'touchmove', this._onTouchMove);
|
off(document, 'pointermove', this._onTouchMove);
|
off(document, 'dragover', nearestEmptyInsertDetectEvent);
|
off(document, 'mousemove', nearestEmptyInsertDetectEvent);
|
off(document, 'touchmove', nearestEmptyInsertDetectEvent);
|
},
|
|
_offUpEvents: function () {
|
let ownerDocument = this.el.ownerDocument;
|
|
off(ownerDocument, 'mouseup', this._onDrop);
|
off(ownerDocument, 'touchend', this._onDrop);
|
off(ownerDocument, 'pointerup', this._onDrop);
|
off(ownerDocument, 'touchcancel', this._onDrop);
|
off(document, 'selectstart', this);
|
},
|
|
_onDrop: function (/**Event*/evt) {
|
let el = this.el,
|
options = this.options;
|
|
// Get the index of the dragged element within its parent
|
newIndex = index(dragEl);
|
newDraggableIndex = index(dragEl, options.draggable);
|
|
pluginEvent('drop', this, {
|
evt
|
});
|
|
parentEl = dragEl && dragEl.parentNode;
|
|
// Get again after plugin event
|
newIndex = index(dragEl);
|
newDraggableIndex = index(dragEl, options.draggable);
|
|
if (Sortable.eventCanceled) {
|
this._nulling();
|
return;
|
}
|
|
awaitingDragStarted = false;
|
isCircumstantialInvert = false;
|
pastFirstInvertThresh = false;
|
|
clearInterval(this._loopId);
|
|
clearTimeout(this._dragStartTimer);
|
|
_cancelNextTick(this.cloneId);
|
_cancelNextTick(this._dragStartId);
|
|
// Unbind events
|
if (this.nativeDraggable) {
|
off(document, 'drop', this);
|
off(el, 'dragstart', this._onDragStart);
|
}
|
this._offMoveEvents();
|
this._offUpEvents();
|
|
|
if (Safari) {
|
css(document.body, 'user-select', '');
|
}
|
|
css(dragEl, 'transform', '');
|
|
if (evt) {
|
if (moved) {
|
evt.cancelable && evt.preventDefault();
|
!options.dropBubble && evt.stopPropagation();
|
}
|
|
ghostEl && ghostEl.parentNode && ghostEl.parentNode.removeChild(ghostEl);
|
|
if (rootEl === parentEl || (putSortable && putSortable.lastPutMode !== 'clone')) {
|
// Remove clone(s)
|
cloneEl && cloneEl.parentNode && cloneEl.parentNode.removeChild(cloneEl);
|
}
|
|
if (dragEl) {
|
if (this.nativeDraggable) {
|
off(dragEl, 'dragend', this);
|
}
|
|
_disableDraggable(dragEl);
|
dragEl.style['will-change'] = '';
|
|
// Remove classes
|
// ghostClass is added in dragStarted
|
if (moved && !awaitingDragStarted) {
|
toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : this.options.ghostClass, false);
|
}
|
toggleClass(dragEl, this.options.chosenClass, false);
|
|
// Drag stop event
|
_dispatchEvent({
|
sortable: this,
|
name: 'unchoose',
|
toEl: parentEl,
|
newIndex: null,
|
newDraggableIndex: null,
|
originalEvent: evt
|
});
|
|
|
if (rootEl !== parentEl) {
|
|
if (newIndex >= 0) {
|
// Add event
|
_dispatchEvent({
|
rootEl: parentEl,
|
name: 'add',
|
toEl: parentEl,
|
fromEl: rootEl,
|
originalEvent: evt
|
});
|
|
// Remove event
|
_dispatchEvent({
|
sortable: this,
|
name: 'remove',
|
toEl: parentEl,
|
originalEvent: evt
|
});
|
|
// drag from one list and drop into another
|
_dispatchEvent({
|
rootEl: parentEl,
|
name: 'sort',
|
toEl: parentEl,
|
fromEl: rootEl,
|
originalEvent: evt
|
});
|
|
_dispatchEvent({
|
sortable: this,
|
name: 'sort',
|
toEl: parentEl,
|
originalEvent: evt
|
});
|
}
|
|
putSortable && putSortable.save();
|
} else {
|
if (newIndex !== oldIndex) {
|
if (newIndex >= 0) {
|
// drag & drop within the same list
|
_dispatchEvent({
|
sortable: this,
|
name: 'update',
|
toEl: parentEl,
|
originalEvent: evt
|
});
|
|
_dispatchEvent({
|
sortable: this,
|
name: 'sort',
|
toEl: parentEl,
|
originalEvent: evt
|
});
|
}
|
}
|
}
|
|
if (Sortable.active) {
|
/* jshint eqnull:true */
|
if (newIndex == null || newIndex === -1) {
|
newIndex = oldIndex;
|
newDraggableIndex = oldDraggableIndex;
|
}
|
|
_dispatchEvent({
|
sortable: this,
|
name: 'end',
|
toEl: parentEl,
|
originalEvent: evt
|
});
|
|
// Save sorting
|
this.save();
|
}
|
}
|
|
}
|
this._nulling();
|
},
|
|
_nulling: function() {
|
pluginEvent('nulling', this);
|
|
rootEl =
|
dragEl =
|
parentEl =
|
ghostEl =
|
nextEl =
|
cloneEl =
|
lastDownEl =
|
cloneHidden =
|
|
tapEvt =
|
touchEvt =
|
|
moved =
|
newIndex =
|
newDraggableIndex =
|
oldIndex =
|
oldDraggableIndex =
|
|
lastTarget =
|
lastDirection =
|
|
putSortable =
|
activeGroup =
|
Sortable.dragged =
|
Sortable.ghost =
|
Sortable.clone =
|
Sortable.active = null;
|
|
savedInputChecked.forEach(function (el) {
|
el.checked = true;
|
});
|
|
savedInputChecked.length =
|
lastDx =
|
lastDy = 0;
|
},
|
|
handleEvent: function (/**Event*/evt) {
|
switch (evt.type) {
|
case 'drop':
|
case 'dragend':
|
this._onDrop(evt);
|
break;
|
|
case 'dragenter':
|
case 'dragover':
|
if (dragEl) {
|
this._onDragOver(evt);
|
_globalDragOver(evt);
|
}
|
break;
|
|
case 'selectstart':
|
evt.preventDefault();
|
break;
|
}
|
},
|
|
|
/**
|
* Serializes the item into an array of string.
|
* @returns {String[]}
|
*/
|
toArray: function () {
|
let order = [],
|
el,
|
children = this.el.children,
|
i = 0,
|
n = children.length,
|
options = this.options;
|
|
for (; i < n; i++) {
|
el = children[i];
|
if (closest(el, options.draggable, this.el, false)) {
|
order.push(el.getAttribute(options.dataIdAttr) || _generateId(el));
|
}
|
}
|
|
return order;
|
},
|
|
|
/**
|
* Sorts the elements according to the array.
|
* @param {String[]} order order of the items
|
*/
|
sort: function (order) {
|
let items = {}, rootEl = this.el;
|
|
this.toArray().forEach(function (id, i) {
|
let el = rootEl.children[i];
|
|
if (closest(el, this.options.draggable, rootEl, false)) {
|
items[id] = el;
|
}
|
}, this);
|
|
order.forEach(function (id) {
|
if (items[id]) {
|
rootEl.removeChild(items[id]);
|
rootEl.appendChild(items[id]);
|
}
|
});
|
},
|
|
|
/**
|
* Save the current sorting
|
*/
|
save: function () {
|
let store = this.options.store;
|
store && store.set && store.set(this);
|
},
|
|
|
/**
|
* For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
|
* @param {HTMLElement} el
|
* @param {String} [selector] default: `options.draggable`
|
* @returns {HTMLElement|null}
|
*/
|
closest: function (el, selector) {
|
return closest(el, selector || this.options.draggable, this.el, false);
|
},
|
|
|
/**
|
* Set/get option
|
* @param {string} name
|
* @param {*} [value]
|
* @returns {*}
|
*/
|
option: function (name, value) {
|
let options = this.options;
|
|
if (value === void 0) {
|
return options[name];
|
} else {
|
let modifiedValue = PluginManager.modifyOption(this, name, value);
|
if (typeof modifiedValue !== 'undefined') {
|
options[name] = modifiedValue;
|
} else {
|
options[name] = value;
|
}
|
|
if (name === 'group') {
|
_prepareGroup(options);
|
}
|
}
|
},
|
|
|
/**
|
* Destroy
|
*/
|
destroy: function () {
|
pluginEvent('destroy', this);
|
let el = this.el;
|
|
el[expando] = null;
|
|
off(el, 'mousedown', this._onTapStart);
|
off(el, 'touchstart', this._onTapStart);
|
off(el, 'pointerdown', this._onTapStart);
|
|
if (this.nativeDraggable) {
|
off(el, 'dragover', this);
|
off(el, 'dragenter', this);
|
}
|
// Remove draggable attributes
|
Array.prototype.forEach.call(el.querySelectorAll('[draggable]'), function (el) {
|
el.removeAttribute('draggable');
|
});
|
|
this._onDrop();
|
|
this._disableDelayedDragEvents();
|
|
sortables.splice(sortables.indexOf(this.el), 1);
|
|
this.el = el = null;
|
},
|
|
_hideClone: function() {
|
if (!cloneHidden) {
|
pluginEvent('hideClone', this);
|
if (Sortable.eventCanceled) return;
|
|
|
css(cloneEl, 'display', 'none');
|
if (this.options.removeCloneOnHide && cloneEl.parentNode) {
|
cloneEl.parentNode.removeChild(cloneEl);
|
}
|
cloneHidden = true;
|
}
|
},
|
|
_showClone: function(putSortable) {
|
if (putSortable.lastPutMode !== 'clone') {
|
this._hideClone();
|
return;
|
}
|
|
|
if (cloneHidden) {
|
pluginEvent('showClone', this);
|
if (Sortable.eventCanceled) return;
|
|
// show clone at dragEl or original position
|
if (rootEl.contains(dragEl) && !this.options.group.revertClone) {
|
rootEl.insertBefore(cloneEl, dragEl);
|
} else if (nextEl) {
|
rootEl.insertBefore(cloneEl, nextEl);
|
} else {
|
rootEl.appendChild(cloneEl);
|
}
|
|
if (this.options.group.revertClone) {
|
this.animate(dragEl, cloneEl);
|
}
|
|
css(cloneEl, 'display', '');
|
cloneHidden = false;
|
}
|
}
|
};
|
|
function _globalDragOver(/**Event*/evt) {
|
if (evt.dataTransfer) {
|
evt.dataTransfer.dropEffect = 'move';
|
}
|
evt.cancelable && evt.preventDefault();
|
}
|
|
function onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect, originalEvent, willInsertAfter) {
|
let evt,
|
sortable = fromEl[expando],
|
onMoveFn = sortable.options.onMove,
|
retVal;
|
// Support for new CustomEvent feature
|
if (window.CustomEvent && !IE11OrLess && !Edge) {
|
evt = new CustomEvent('move', {
|
bubbles: true,
|
cancelable: true
|
});
|
} else {
|
evt = document.createEvent('Event');
|
evt.initEvent('move', true, true);
|
}
|
|
evt.to = toEl;
|
evt.from = fromEl;
|
evt.dragged = dragEl;
|
evt.draggedRect = dragRect;
|
evt.related = targetEl || toEl;
|
evt.relatedRect = targetRect || getRect(toEl);
|
evt.willInsertAfter = willInsertAfter;
|
|
evt.originalEvent = originalEvent;
|
|
fromEl.dispatchEvent(evt);
|
|
if (onMoveFn) {
|
retVal = onMoveFn.call(sortable, evt, originalEvent);
|
}
|
|
return retVal;
|
}
|
|
function _disableDraggable(el) {
|
el.draggable = false;
|
}
|
|
function _unsilent() {
|
_silent = false;
|
}
|
|
|
function _ghostIsLast(evt, vertical, sortable) {
|
let rect = getRect(lastChild(sortable.el, sortable.options.draggable));
|
const spacer = 10;
|
|
return vertical ?
|
(evt.clientX > rect.right + spacer || evt.clientX <= rect.right && evt.clientY > rect.bottom && evt.clientX >= rect.left) :
|
(evt.clientX > rect.right && evt.clientY > rect.top || evt.clientX <= rect.right && evt.clientY > rect.bottom + spacer);
|
}
|
|
function _getSwapDirection(evt, target, targetRect, vertical, swapThreshold, invertedSwapThreshold, invertSwap, isLastTarget) {
|
let mouseOnAxis = vertical ? evt.clientY : evt.clientX,
|
targetLength = vertical ? targetRect.height : targetRect.width,
|
targetS1 = vertical ? targetRect.top : targetRect.left,
|
targetS2 = vertical ? targetRect.bottom : targetRect.right,
|
invert = false;
|
|
|
if (!invertSwap) {
|
// Never invert or create dragEl shadow when target movemenet causes mouse to move past the end of regular swapThreshold
|
if (isLastTarget && targetMoveDistance < targetLength * swapThreshold) { // multiplied only by swapThreshold because mouse will already be inside target by (1 - threshold) * targetLength / 2
|
// check if past first invert threshold on side opposite of lastDirection
|
if (!pastFirstInvertThresh &&
|
(lastDirection === 1 ?
|
(
|
mouseOnAxis > targetS1 + targetLength * invertedSwapThreshold / 2
|
) :
|
(
|
mouseOnAxis < targetS2 - targetLength * invertedSwapThreshold / 2
|
)
|
)
|
)
|
{
|
// past first invert threshold, do not restrict inverted threshold to dragEl shadow
|
pastFirstInvertThresh = true;
|
}
|
|
if (!pastFirstInvertThresh) {
|
// dragEl shadow (target move distance shadow)
|
if (
|
lastDirection === 1 ?
|
(
|
mouseOnAxis < targetS1 + targetMoveDistance // over dragEl shadow
|
) :
|
(
|
mouseOnAxis > targetS2 - targetMoveDistance
|
)
|
)
|
{
|
return -lastDirection;
|
}
|
} else {
|
invert = true;
|
}
|
} else {
|
// Regular
|
if (
|
mouseOnAxis > targetS1 + (targetLength * (1 - swapThreshold) / 2) &&
|
mouseOnAxis < targetS2 - (targetLength * (1 - swapThreshold) / 2)
|
) {
|
return _getInsertDirection(target);
|
}
|
}
|
}
|
|
invert = invert || invertSwap;
|
|
if (invert) {
|
// Invert of regular
|
if (
|
mouseOnAxis < targetS1 + (targetLength * invertedSwapThreshold / 2) ||
|
mouseOnAxis > targetS2 - (targetLength * invertedSwapThreshold / 2)
|
)
|
{
|
return ((mouseOnAxis > targetS1 + targetLength / 2) ? 1 : -1);
|
}
|
}
|
|
return 0;
|
}
|
|
/**
|
* Gets the direction dragEl must be swapped relative to target in order to make it
|
* seem that dragEl has been "inserted" into that element's position
|
* @param {HTMLElement} target The target whose position dragEl is being inserted at
|
* @return {Number} Direction dragEl must be swapped
|
*/
|
function _getInsertDirection(target) {
|
if (index(dragEl) < index(target)) {
|
return 1;
|
} else {
|
return -1;
|
}
|
}
|
|
|
/**
|
* Generate id
|
* @param {HTMLElement} el
|
* @returns {String}
|
* @private
|
*/
|
function _generateId(el) {
|
let str = el.tagName + el.className + el.src + el.href + el.textContent,
|
i = str.length,
|
sum = 0;
|
|
while (i--) {
|
sum += str.charCodeAt(i);
|
}
|
|
return sum.toString(36);
|
}
|
|
function _saveInputCheckedState(root) {
|
savedInputChecked.length = 0;
|
|
let inputs = root.getElementsByTagName('input');
|
let idx = inputs.length;
|
|
while (idx--) {
|
let el = inputs[idx];
|
el.checked && savedInputChecked.push(el);
|
}
|
}
|
|
function _nextTick(fn) {
|
return setTimeout(fn, 0);
|
}
|
|
function _cancelNextTick(id) {
|
return clearTimeout(id);
|
}
|
|
// Fixed #973:
|
if (documentExists) {
|
on(document, 'touchmove', function(evt) {
|
if ((Sortable.active || awaitingDragStarted) && evt.cancelable) {
|
evt.preventDefault();
|
}
|
});
|
}
|
|
|
// Export utils
|
Sortable.utils = {
|
on: on,
|
off: off,
|
css: css,
|
find: find,
|
is: function (el, selector) {
|
return !!closest(el, selector, el, false);
|
},
|
extend: extend,
|
throttle: throttle,
|
closest: closest,
|
toggleClass: toggleClass,
|
clone: clone,
|
index: index,
|
nextTick: _nextTick,
|
cancelNextTick: _cancelNextTick,
|
detectDirection: _detectDirection,
|
getChild: getChild
|
};
|
|
|
/**
|
* Get the Sortable instance of an element
|
* @param {HTMLElement} element The element
|
* @return {Sortable|undefined} The instance of Sortable
|
*/
|
Sortable.get = function(element) {
|
return element[expando];
|
};
|
|
/**
|
* Mount a plugin to Sortable
|
* @param {...SortablePlugin|SortablePlugin[]} plugins Plugins being mounted
|
*/
|
Sortable.mount = function(...plugins) {
|
if (plugins[0].constructor === Array) plugins = plugins[0];
|
|
plugins.forEach((plugin) => {
|
if (!plugin.prototype || !plugin.prototype.constructor) {
|
throw `Sortable: Mounted plugin must be a constructor function, not ${ {}.toString.call(plugin) }`;
|
}
|
if (plugin.utils) Sortable.utils = { ...Sortable.utils, ...plugin.utils };
|
|
PluginManager.mount(plugin);
|
});
|
};
|
|
|
|
/**
|
* Create sortable instance
|
* @param {HTMLElement} el
|
* @param {Object} [options]
|
*/
|
Sortable.create = function (el, options) {
|
return new Sortable(el, options);
|
};
|
|
|
// Export
|
Sortable.version = version;
|
|
|
export default Sortable;
|
