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  • layui自动渲染表格添加行拖动功能

    最近在做关于后台管理的项目,后台模板基础框架使用的是layui前端框架http://www.layui.com/。layui的表格渲染还是蛮好用的但是无法使用jQuery UI里的排序功能。下面是一个完美契合layui表格行拖动的插件,复制粘贴引入到jQuery文件的下方就可以使用

    /**!
     * Sortable
     * @author    RubaXa   <trash@rubaxa.org>
     * @license MIT
     */
    
    (function sortableModule(factory) {
        "use strict";
    
        if (typeof define === "function" && define.amd) {
            define(factory);
        }
        else if (typeof module != "undefined" && typeof module.exports != "undefined") {
            module.exports = factory();
        }
        else {
            /* jshint sub:true */
            window["Sortable"] = factory();
        }
    })(function sortableFactory() {
        "use strict";
    
        if (typeof window === "undefined" || !window.document) {
            return function sortableError() {
                throw new Error("Sortable.js requires a window with a document");
            };
        }
    
        var dragEl,
            parentEl,
            ghostEl,
            cloneEl,
            rootEl,
            nextEl,
            lastDownEl,
    
            scrollEl,
            scrollParentEl,
            scrollCustomFn,
    
            lastEl,
            lastCSS,
            lastParentCSS,
    
            oldIndex,
            newIndex,
    
            activeGroup,
            putSortable,
    
            autoScroll = {},
    
            tapEvt,
            touchEvt,
    
            moved,
    
            forRepaintDummy,
    
            /** @const */
            R_SPACE = /s+/g,
            R_FLOAT = /left|right|inline/,
    
            expando = 'Sortable' + (new Date).getTime(),
    
            win = window,
            document = win.document,
            parseInt = win.parseInt,
            setTimeout = win.setTimeout,
    
            $ = win.jQuery || win.Zepto,
            Polymer = win.Polymer,
    
            captureMode = false,
            passiveMode = false,
    
            supportDraggable = ('draggable' in document.createElement('div')),
            supportCssPointerEvents = (function (el) {
                // false when IE11
                if (!!navigator.userAgent.match(/(?:Trident.*rv[ :]?11.|msie)/i)) {
                    return false;
                }
                el = document.createElement('x');
                el.style.cssText = 'pointer-events:auto';
                return el.style.pointerEvents === 'auto';
            })(),
    
            _silent = false,
    
            abs = Math.abs,
            min = Math.min,
    
            savedInputChecked = [],
            touchDragOverListeners = [],
    
            alwaysFalse = function () { return false; },
    
            _autoScroll = _throttle(function (/**Event*/evt, /**Object*/options, /**HTMLElement*/rootEl) {
                // Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
                if (rootEl && options.scroll) {
                    var _this = rootEl[expando],
                        el,
                        rect,
                        sens = options.scrollSensitivity,
                        speed = options.scrollSpeed,
    
                        x = evt.clientX,
                        y = evt.clientY,
    
                        winWidth = window.innerWidth,
                        winHeight = window.innerHeight,
    
                        vx,
                        vy,
    
                        scrollOffsetX,
                        scrollOffsetY
                    ;
    
                    // Delect scrollEl
                    if (scrollParentEl !== rootEl) {
                        scrollEl = options.scroll;
                        scrollParentEl = rootEl;
                        scrollCustomFn = options.scrollFn;
    
                        if (scrollEl === true) {
                            scrollEl = rootEl;
    
                            do {
                                if ((scrollEl.offsetWidth < scrollEl.scrollWidth) ||
                                    (scrollEl.offsetHeight < scrollEl.scrollHeight)
                                ) {
                                    break;
                                }
                                /* jshint boss:true */
                            } while (scrollEl = scrollEl.parentNode);
                        }
                    }
    
                    if (scrollEl) {
                        el = scrollEl;
                        rect = scrollEl.getBoundingClientRect();
                        vx = (abs(rect.right - x) <= sens) - (abs(rect.left - x) <= sens);
                        vy = (abs(rect.bottom - y) <= sens) - (abs(rect.top - y) <= sens);
                    }
    
    
                    if (!(vx || vy)) {
                        vx = (winWidth - x <= sens) - (x <= sens);
                        vy = (winHeight - y <= sens) - (y <= sens);
    
                        /* jshint expr:true */
                        (vx || vy) && (el = win);
                    }
    
    
                    if (autoScroll.vx !== vx || autoScroll.vy !== vy || autoScroll.el !== el) {
                        autoScroll.el = el;
                        autoScroll.vx = vx;
                        autoScroll.vy = vy;
    
                        clearInterval(autoScroll.pid);
    
                        if (el) {
                            autoScroll.pid = setInterval(function () {
                                scrollOffsetY = vy ? vy * speed : 0;
                                scrollOffsetX = vx ? vx * speed : 0;
    
                                if ('function' === typeof(scrollCustomFn)) {
                                    if (scrollCustomFn.call(_this, scrollOffsetX, scrollOffsetY, evt, touchEvt, el) !== 'continue') {
                                        return;
                                    }
                                }
    
                                if (el === win) {
                                    win.scrollTo(win.pageXOffset + scrollOffsetX, win.pageYOffset + scrollOffsetY);
                                } else {
                                    el.scrollTop += scrollOffsetY;
                                    el.scrollLeft += scrollOffsetX;
                                }
                            }, 24);
                        }
                    }
                }
            }, 30),
    
            _prepareGroup = function (options) {
                function toFn(value, pull) {
                    if (value == null || value === true) {
                        value = group.name;
                        if (value == null) {
                            return alwaysFalse;
                        }
                    }
    
                    if (typeof value === 'function') {
                        return value;
                    } else {
                        return function (to, from) {
                            var fromGroup = from.options.group.name;
    
                            return pull
                                ? value
                                : value && (value.join
                                    ? value.indexOf(fromGroup) > -1
                                    : (fromGroup == value)
                                );
                        };
                    }
                }
    
                var group = {};
                var originalGroup = options.group;
    
                if (!originalGroup || typeof originalGroup != 'object') {
                    originalGroup = {name: originalGroup};
                }
    
                group.name = originalGroup.name;
                group.checkPull = toFn(originalGroup.pull, true);
                group.checkPut = toFn(originalGroup.put);
                group.revertClone = originalGroup.revertClone;
    
                options.group = group;
            }
        ;
    
        // Detect support a passive mode
        try {
            window.addEventListener('test', null, Object.defineProperty({}, 'passive', {
                get: function () {
                    // `false`, because everything starts to work incorrectly and instead of d'n'd,
                    // begins the page has scrolled.
                    passiveMode = false;
                    captureMode = {
                        capture: false,
                        passive: passiveMode
                    };
                }
            }));
        } catch (err) {}
    
        /**
         * @class  Sortable
         * @param  {HTMLElement}  el
         * @param  {Object}       [options]
         */
        function Sortable(el, options) {
            if (!(el && el.nodeType && el.nodeType === 1)) {
                throw 'Sortable: `el` must be HTMLElement, and not ' + {}.toString.call(el);
            }
    
            this.el = el; // root element
            this.options = options = _extend({}, options);
    
    
            // Export instance
            el[expando] = this;
    
            // Default options
            var defaults = {
                group: null,
                sort: true,
                disabled: false,
                store: null,
                handle: null,
          scroll: true,
                scrollSensitivity: 30,
                scrollSpeed: 10,
                draggable: /[uo]l/i.test(el.nodeName) ? 'li' : '>*',
                ghostClass: 'sortable-ghost',
                chosenClass: 'sortable-chosen',
                dragClass: 'sortable-drag',
                ignore: 'a, img',
                filter: null,
                preventOnFilter: true,
                animation: 0,
                setData: function (dataTransfer, dragEl) {
                    dataTransfer.setData('Text', dragEl.textContent);
                },
                dropBubble: false,
                dragoverBubble: false,
                dataIdAttr: 'data-id',
                delay: 0,
                touchStartThreshold: parseInt(window.devicePixelRatio, 10) || 1,
                forceFallback: false,
                fallbackClass: 'sortable-fallback',
                fallbackOnBody: false,
                fallbackTolerance: 0,
                fallbackOffset: {x: 0, y: 0},
                supportPointer: Sortable.supportPointer !== false
            };
    
    
            // Set default options
            for (var name in defaults) {
                !(name in options) && (options[name] = defaults[name]);
            }
    
            _prepareGroup(options);
    
            // Bind all private methods
            for (var fn in this) {
                if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
                    this[fn] = this[fn].bind(this);
                }
            }
    
            // Setup drag mode
            this.nativeDraggable = options.forceFallback ? false : supportDraggable;
    
            // Bind events
            _on(el, 'mousedown', this._onTapStart);
            _on(el, 'touchstart', this._onTapStart);
            options.supportPointer && _on(el, 'pointerdown', this._onTapStart);
    
            if (this.nativeDraggable) {
                _on(el, 'dragover', this);
                _on(el, 'dragenter', this);
            }
    
            touchDragOverListeners.push(this._onDragOver);
    
            // Restore sorting
            options.store && this.sort(options.store.get(this));
        }
    
    
        Sortable.prototype = /** @lends Sortable.prototype */ {
            constructor: Sortable,
    
            _onTapStart: function (/** Event|TouchEvent */evt) {
                var _this = this,
                    el = this.el,
                    options = this.options,
                    preventOnFilter = options.preventOnFilter,
                    type = evt.type,
                    touch = evt.touches && evt.touches[0],
                    target = (touch || evt).target,
                    originalTarget = evt.target.shadowRoot && (evt.path && evt.path[0]) || target,
                    filter = options.filter,
                    startIndex;
    
                _saveInputCheckedState(el);
    
    
                // Don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.
                if (dragEl) {
                    return;
                }
    
                if (/mousedown|pointerdown/.test(type) && evt.button !== 0 || options.disabled) {
                    return; // only left button or enabled
                }
    
                // cancel dnd if original target is content editable
                if (originalTarget.isContentEditable) {
                    return;
                }
    
                target = _closest(target, options.draggable, el);
    
                if (!target) {
                    return;
                }
    
                if (lastDownEl === target) {
                    // Ignoring duplicate `down`
                    return;
                }
    
                // Get the index of the dragged element within its parent
                startIndex = _index(target, options.draggable);
    
                // Check filter
                if (typeof filter === 'function') {
                    if (filter.call(this, evt, target, this)) {
                        _dispatchEvent(_this, originalTarget, 'filter', target, el, el, startIndex);
                        preventOnFilter && evt.preventDefault();
                        return; // cancel dnd
                    }
                }
                else if (filter) {
                    filter = filter.split(',').some(function (criteria) {
                        criteria = _closest(originalTarget, criteria.trim(), el);
    
                        if (criteria) {
                            _dispatchEvent(_this, criteria, 'filter', target, el, el, startIndex);
                            return true;
                        }
                    });
    
                    if (filter) {
                        preventOnFilter && evt.preventDefault();
                        return; // cancel dnd
                    }
                }
    
                if (options.handle && !_closest(originalTarget, options.handle, el)) {
                    return;
                }
    
                // Prepare `dragstart`
                this._prepareDragStart(evt, touch, target, startIndex);
            },
    
            _prepareDragStart: function (/** Event */evt, /** Touch */touch, /** HTMLElement */target, /** Number */startIndex) {
                var _this = this,
                    el = _this.el,
                    options = _this.options,
                    ownerDocument = el.ownerDocument,
                    dragStartFn;
    
                if (target && !dragEl && (target.parentNode === el)) {
                    tapEvt = evt;
    
                    rootEl = el;
                    dragEl = target;
                    parentEl = dragEl.parentNode;
                    nextEl = dragEl.nextSibling;
                    lastDownEl = target;
                    activeGroup = options.group;
                    oldIndex = startIndex;
    
                    this._lastX = (touch || evt).clientX;
                    this._lastY = (touch || evt).clientY;
    
                    dragEl.style['will-change'] = 'all';
    
                    dragStartFn = function () {
                        // Delayed drag has been triggered
                        // we can re-enable the events: touchmove/mousemove
                        _this._disableDelayedDrag();
    
                        // Make the element draggable
                        dragEl.draggable = _this.nativeDraggable;
    
                        // Chosen item
                        _toggleClass(dragEl, options.chosenClass, true);
    
                        // Bind the events: dragstart/dragend
                        _this._triggerDragStart(evt, touch);
    
                        // Drag start event
                        _dispatchEvent(_this, rootEl, 'choose', dragEl, rootEl, rootEl, oldIndex);
                    };
    
                    // Disable "draggable"
                    options.ignore.split(',').forEach(function (criteria) {
                        _find(dragEl, criteria.trim(), _disableDraggable);
                    });
    
                    _on(ownerDocument, 'mouseup', _this._onDrop);
                    _on(ownerDocument, 'touchend', _this._onDrop);
                    _on(ownerDocument, 'touchcancel', _this._onDrop);
                    _on(ownerDocument, 'selectstart', _this);
                    options.supportPointer && _on(ownerDocument, 'pointercancel', _this._onDrop);
    
                    if (options.delay) {
                        // If the user moves the pointer or let go the click or touch
                        // before the delay has been reached:
                        // disable the delayed drag
                        _on(ownerDocument, 'mouseup', _this._disableDelayedDrag);
                        _on(ownerDocument, 'touchend', _this._disableDelayedDrag);
                        _on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
                        _on(ownerDocument, 'mousemove', _this._disableDelayedDrag);
                        _on(ownerDocument, 'touchmove', _this._delayedDragTouchMoveHandler);
                        options.supportPointer && _on(ownerDocument, 'pointermove', _this._delayedDragTouchMoveHandler);
    
                        _this._dragStartTimer = setTimeout(dragStartFn, options.delay);
                    } else {
                        dragStartFn();
                    }
    
    
                }
            },
    
            _delayedDragTouchMoveHandler: function (/** TouchEvent|PointerEvent **/e) {
                if (min(abs(e.clientX - this._lastX), abs(e.clientY - this._lastY)) >= this.options.touchStartThreshold) {
                    this._disableDelayedDrag();
                }
            },
    
            _disableDelayedDrag: function () {
                var ownerDocument = this.el.ownerDocument;
    
                clearTimeout(this._dragStartTimer);
                _off(ownerDocument, 'mouseup', this._disableDelayedDrag);
                _off(ownerDocument, 'touchend', this._disableDelayedDrag);
                _off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
                _off(ownerDocument, 'mousemove', this._disableDelayedDrag);
                _off(ownerDocument, 'touchmove', this._disableDelayedDrag);
                _off(ownerDocument, 'pointermove', this._disableDelayedDrag);
            },
    
            _triggerDragStart: function (/** Event */evt, /** Touch */touch) {
                touch = touch || (evt.pointerType == 'touch' ? evt : null);
    
                if (touch) {
                    // Touch device support
                    tapEvt = {
                        target: dragEl,
                        clientX: touch.clientX,
                        clientY: touch.clientY
                    };
    
                    this._onDragStart(tapEvt, 'touch');
                }
                else if (!this.nativeDraggable) {
                    this._onDragStart(tapEvt, true);
                }
                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 () {
                if (rootEl && dragEl) {
                    var options = this.options;
    
                    // Apply effect
                    _toggleClass(dragEl, options.ghostClass, true);
                    _toggleClass(dragEl, options.dragClass, false);
    
                    Sortable.active = this;
    
                    // Drag start event
                    _dispatchEvent(this, rootEl, 'start', dragEl, rootEl, rootEl, oldIndex);
                } else {
                    this._nulling();
                }
            },
    
            _emulateDragOver: function () {
                if (touchEvt) {
                    if (this._lastX === touchEvt.clientX && this._lastY === touchEvt.clientY) {
                        return;
                    }
    
                    this._lastX = touchEvt.clientX;
                    this._lastY = touchEvt.clientY;
    
                    if (!supportCssPointerEvents) {
                        _css(ghostEl, 'display', 'none');
                    }
    
                    var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
                    var parent = target;
                    var i = touchDragOverListeners.length;
    
                    while (target && target.shadowRoot) {
                        target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
                        parent = target;
                    }
    
                    if (parent) {
                        do {
                            if (parent[expando]) {
                                while (i--) {
                                    touchDragOverListeners[i]({
                                        clientX: touchEvt.clientX,
                                        clientY: touchEvt.clientY,
                                        target: target,
                                        rootEl: parent
                                    });
                                }
    
                                break;
                            }
    
                            target = parent; // store last element
                        }
                        /* jshint boss:true */
                        while (parent = parent.parentNode);
                    }
    
                    if (!supportCssPointerEvents) {
                        _css(ghostEl, 'display', '');
                    }
                }
            },
    
    
            _onTouchMove: function (/**TouchEvent*/evt) {
                if (tapEvt) {
                    var    options = this.options,
                        fallbackTolerance = options.fallbackTolerance,
                        fallbackOffset = options.fallbackOffset,
                        touch = evt.touches ? evt.touches[0] : evt,
                        dx = (touch.clientX - tapEvt.clientX) + fallbackOffset.x,
                        dy = (touch.clientY - tapEvt.clientY) + fallbackOffset.y,
                        translate3d = evt.touches ? 'translate3d(' + dx + 'px,' + dy + 'px,0)' : 'translate(' + dx + 'px,' + dy + 'px)';
    
                    // only set the status to dragging, when we are actually dragging
                    if (!Sortable.active) {
                        if (fallbackTolerance &&
                            min(abs(touch.clientX - this._lastX), abs(touch.clientY - this._lastY)) < fallbackTolerance
                        ) {
                            return;
                        }
    
                        this._dragStarted();
                    }
    
                    // as well as creating the ghost element on the document body
                    this._appendGhost();
    
                    moved = true;
                    touchEvt = touch;
    
                    _css(ghostEl, 'webkitTransform', translate3d);
                    _css(ghostEl, 'mozTransform', translate3d);
                    _css(ghostEl, 'msTransform', translate3d);
                    _css(ghostEl, 'transform', translate3d);
    
                    evt.preventDefault();
                }
            },
    
            _appendGhost: function () {
                if (!ghostEl) {
                    var rect = dragEl.getBoundingClientRect(),
                        css = _css(dragEl),
                        options = this.options,
                        ghostRect;
    
                    ghostEl = dragEl.cloneNode(true);
    
                    _toggleClass(ghostEl, options.ghostClass, false);
                    _toggleClass(ghostEl, options.fallbackClass, true);
                    _toggleClass(ghostEl, options.dragClass, true);
    
                    _css(ghostEl, 'top', rect.top - parseInt(css.marginTop, 10));
                    _css(ghostEl, 'left', rect.left - parseInt(css.marginLeft, 10));
                    _css(ghostEl, 'width', rect.width);
                    _css(ghostEl, 'height', rect.height);
                    _css(ghostEl, 'opacity', '0.8');
                    _css(ghostEl, 'position', 'fixed');
                    _css(ghostEl, 'zIndex', '100000');
                    _css(ghostEl, 'pointerEvents', 'none');
    
                    options.fallbackOnBody && document.body.appendChild(ghostEl) || rootEl.appendChild(ghostEl);
    
                    // Fixing dimensions.
                    ghostRect = ghostEl.getBoundingClientRect();
                    _css(ghostEl, 'width', rect.width * 2 - ghostRect.width);
                    _css(ghostEl, 'height', rect.height * 2 - ghostRect.height);
                }
            },
    
            _onDragStart: function (/**Event*/evt, /**boolean*/useFallback) {
                var _this = this;
                var dataTransfer = evt.dataTransfer;
                var options = _this.options;
    
                _this._offUpEvents();
    
                if (activeGroup.checkPull(_this, _this, dragEl, evt)) {
                    cloneEl = _clone(dragEl);
    
                    cloneEl.draggable = false;
                    cloneEl.style['will-change'] = '';
    
                    _css(cloneEl, 'display', 'none');
                    _toggleClass(cloneEl, _this.options.chosenClass, false);
    
                    // #1143: IFrame support workaround
                    _this._cloneId = _nextTick(function () {
                        rootEl.insertBefore(cloneEl, dragEl);
                        _dispatchEvent(_this, rootEl, 'clone', dragEl);
                    });
                }
    
                _toggleClass(dragEl, options.dragClass, true);
    
                if (useFallback) {
                    if (useFallback === 'touch') {
                        // Bind touch events
                        _on(document, 'touchmove', _this._onTouchMove);
                        _on(document, 'touchend', _this._onDrop);
                        _on(document, 'touchcancel', _this._onDrop);
    
                        if (options.supportPointer) {
                            _on(document, 'pointermove', _this._onTouchMove);
                            _on(document, 'pointerup', _this._onDrop);
                        }
                    } else {
                        // Old brwoser
                        _on(document, 'mousemove', _this._onTouchMove);
                        _on(document, 'mouseup', _this._onDrop);
                    }
    
                    _this._loopId = setInterval(_this._emulateDragOver, 50);
                }
                else {
                    if (dataTransfer) {
                        dataTransfer.effectAllowed = 'move';
                        options.setData && options.setData.call(_this, dataTransfer, dragEl);
                    }
    
                    _on(document, 'drop', _this);
    
                    // #1143: Бывает элемент с IFrame внутри блокирует `drop`,
                    // поэтому если вызвался `mouseover`, значит надо отменять весь d'n'd.
                    // Breaking Chrome 62+
                    // _on(document, 'mouseover', _this);
    
                    _this._dragStartId = _nextTick(_this._dragStarted);
                }
            },
    
            _onDragOver: function (/**Event*/evt) {
                var el = this.el,
                    target,
                    dragRect,
                    targetRect,
                    revert,
                    options = this.options,
                    group = options.group,
                    activeSortable = Sortable.active,
                    isOwner = (activeGroup === group),
                    isMovingBetweenSortable = false,
                    canSort = options.sort;
    
                if (evt.preventDefault !== void 0) {
                    evt.preventDefault();
                    !options.dragoverBubble && evt.stopPropagation();
                }
    
                if (dragEl.animated) {
                    return;
                }
    
                moved = true;
    
                if (activeSortable && !options.disabled &&
                    (isOwner
                        ? canSort || (revert = !rootEl.contains(dragEl)) // Reverting item into the original list
                        : (
                            putSortable === this ||
                            (
                                (activeSortable.lastPullMode = activeGroup.checkPull(this, activeSortable, dragEl, evt)) &&
                                group.checkPut(this, activeSortable, dragEl, evt)
                            )
                        )
                    ) &&
                    (evt.rootEl === void 0 || evt.rootEl === this.el) // touch fallback
                ) {
                    // Smart auto-scrolling
                    _autoScroll(evt, options, this.el);
    
                    if (_silent) {
                        return;
                    }
    
                    target = _closest(evt.target, options.draggable, el);
                    dragRect = dragEl.getBoundingClientRect();
    
                    if (putSortable !== this) {
                        putSortable = this;
                        isMovingBetweenSortable = true;
                    }
    
                    if (revert) {
                        _cloneHide(activeSortable, true);
                        parentEl = rootEl; // actualization
    
                        if (cloneEl || nextEl) {
                            rootEl.insertBefore(dragEl, cloneEl || nextEl);
                        }
                        else if (!canSort) {
                            rootEl.appendChild(dragEl);
                        }
    
                        return;
                    }
    
    
                    if ((el.children.length === 0) || (el.children[0] === ghostEl) ||
                        (el === evt.target) && (_ghostIsLast(el, evt))
                    ) {
                        //assign target only if condition is true
                        if (el.children.length !== 0 && el.children[0] !== ghostEl && el === evt.target) {
                            target = el.lastElementChild;
                        }
    
                        if (target) {
                            if (target.animated) {
                                return;
                            }
    
                            targetRect = target.getBoundingClientRect();
                        }
    
                        _cloneHide(activeSortable, isOwner);
    
                        if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt) !== false) {
                            if (!dragEl.contains(el)) {
                                el.appendChild(dragEl);
                                parentEl = el; // actualization
                            }
    
                            this._animate(dragRect, dragEl);
                            target && this._animate(targetRect, target);
                        }
                    }
                    else if (target && !target.animated && target !== dragEl && (target.parentNode[expando] !== void 0)) {
                        if (lastEl !== target) {
                            lastEl = target;
                            lastCSS = _css(target);
                            lastParentCSS = _css(target.parentNode);
                        }
    
                        targetRect = target.getBoundingClientRect();
    
                        var width = targetRect.right - targetRect.left,
                            height = targetRect.bottom - targetRect.top,
                            floating = R_FLOAT.test(lastCSS.cssFloat + lastCSS.display)
                                || (lastParentCSS.display == 'flex' && lastParentCSS['flex-direction'].indexOf('row') === 0),
                            isWide = (target.offsetWidth > dragEl.offsetWidth),
                            isLong = (target.offsetHeight > dragEl.offsetHeight),
                            halfway = (floating ? (evt.clientX - targetRect.left) / width : (evt.clientY - targetRect.top) / height) > 0.5,
                            nextSibling = target.nextElementSibling,
                            after = false
                        ;
    
                        if (floating) {
                            var elTop = dragEl.offsetTop,
                                tgTop = target.offsetTop;
    
                            if (elTop === tgTop) {
                                after = (target.previousElementSibling === dragEl) && !isWide || halfway && isWide;
                            }
                            else if (target.previousElementSibling === dragEl || dragEl.previousElementSibling === target) {
                                after = (evt.clientY - targetRect.top) / height > 0.5;
                            } else {
                                after = tgTop > elTop;
                            }
                            } else if (!isMovingBetweenSortable) {
                            after = (nextSibling !== dragEl) && !isLong || halfway && isLong;
                        }
    
                        var 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);
    
                            _cloneHide(activeSortable, isOwner);
    
                            if (!dragEl.contains(el)) {
                                if (after && !nextSibling) {
                                    el.appendChild(dragEl);
                                } else {
                                    target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
                                }
                            }
    
                            parentEl = dragEl.parentNode; // actualization
    
                            this._animate(dragRect, dragEl);
                            this._animate(targetRect, target);
                        }
                    }
                }
            },
    
            _animate: function (prevRect, target) {
                var ms = this.options.animation;
    
                if (ms) {
                    var currentRect = target.getBoundingClientRect();
    
                    if (prevRect.nodeType === 1) {
                        prevRect = prevRect.getBoundingClientRect();
                    }
    
                    _css(target, 'transition', 'none');
                    _css(target, 'transform', 'translate3d('
                        + (prevRect.left - currentRect.left) + 'px,'
                        + (prevRect.top - currentRect.top) + 'px,0)'
                    );
    
                    forRepaintDummy = target.offsetWidth; // repaint
    
                    _css(target, 'transition', 'all ' + ms + 'ms');
                    _css(target, 'transform', 'translate3d(0,0,0)');
    
                    clearTimeout(target.animated);
                    target.animated = setTimeout(function () {
                        _css(target, 'transition', '');
                        _css(target, 'transform', '');
                        target.animated = false;
                    }, ms);
                }
            },
    
            _offUpEvents: function () {
                var ownerDocument = this.el.ownerDocument;
    
                _off(document, 'touchmove', this._onTouchMove);
                _off(document, 'pointermove', this._onTouchMove);
                _off(ownerDocument, 'mouseup', this._onDrop);
                _off(ownerDocument, 'touchend', this._onDrop);
                _off(ownerDocument, 'pointerup', this._onDrop);
                _off(ownerDocument, 'touchcancel', this._onDrop);
                _off(ownerDocument, 'pointercancel', this._onDrop);
                _off(ownerDocument, 'selectstart', this);
            },
    
            _onDrop: function (/**Event*/evt) {
                var el = this.el,
                    options = this.options;
    
                clearInterval(this._loopId);
                clearInterval(autoScroll.pid);
                clearTimeout(this._dragStartTimer);
    
                _cancelNextTick(this._cloneId);
                _cancelNextTick(this._dragStartId);
    
                // Unbind events
                _off(document, 'mouseover', this);
                _off(document, 'mousemove', this._onTouchMove);
    
                if (this.nativeDraggable) {
                    _off(document, 'drop', this);
                    _off(el, 'dragstart', this._onDragStart);
                }
    
                this._offUpEvents();
    
                if (evt) {
                    if (moved) {
                        evt.preventDefault();
                        !options.dropBubble && evt.stopPropagation();
                    }
    
                    ghostEl && ghostEl.parentNode && ghostEl.parentNode.removeChild(ghostEl);
    
                    if (rootEl === parentEl || Sortable.active.lastPullMode !== 'clone') {
                        // Remove clone
                        cloneEl && cloneEl.parentNode && cloneEl.parentNode.removeChild(cloneEl);
                    }
    
                    if (dragEl) {
                        if (this.nativeDraggable) {
                            _off(dragEl, 'dragend', this);
                        }
    
                        _disableDraggable(dragEl);
                        dragEl.style['will-change'] = '';
    
                        // Remove class's
                        _toggleClass(dragEl, this.options.ghostClass, false);
                        _toggleClass(dragEl, this.options.chosenClass, false);
    
                        // Drag stop event
                        _dispatchEvent(this, rootEl, 'unchoose', dragEl, parentEl, rootEl, oldIndex, null, evt);
    
                        if (rootEl !== parentEl) {
                            newIndex = _index(dragEl, options.draggable);
    
                            if (newIndex >= 0) {
                                // Add event
                                _dispatchEvent(null, parentEl, 'add', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
    
                                // Remove event
                                _dispatchEvent(this, rootEl, 'remove', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
    
                                // drag from one list and drop into another
                                _dispatchEvent(null, parentEl, 'sort', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
                                _dispatchEvent(this, rootEl, 'sort', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
                            }
                        }
                        else {
                            if (dragEl.nextSibling !== nextEl) {
                                // Get the index of the dragged element within its parent
                                newIndex = _index(dragEl, options.draggable);
    
                                if (newIndex >= 0) {
                                    // drag & drop within the same list
                                    _dispatchEvent(this, rootEl, 'update', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
                                    _dispatchEvent(this, rootEl, 'sort', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
                                }
                            }
                        }
    
                        if (Sortable.active) {
                            /* jshint eqnull:true */
                            if (newIndex == null || newIndex === -1) {
                                newIndex = oldIndex;
                            }
    
                            _dispatchEvent(this, rootEl, 'end', dragEl, parentEl, rootEl, oldIndex, newIndex, evt);
    
                            // Save sorting
                            this.save();
                        }
                    }
    
                }
    
                this._nulling();
            },
    
            _nulling: function() {
                rootEl =
                dragEl =
                parentEl =
                ghostEl =
                nextEl =
                cloneEl =
                lastDownEl =
    
                scrollEl =
                scrollParentEl =
    
                tapEvt =
                touchEvt =
    
                moved =
                newIndex =
    
                lastEl =
                lastCSS =
    
                putSortable =
                activeGroup =
                Sortable.active = null;
    
                savedInputChecked.forEach(function (el) {
                    el.checked = true;
                });
                savedInputChecked.length = 0;
            },
    
            handleEvent: function (/**Event*/evt) {
                switch (evt.type) {
                    case 'drop':
                    case 'dragend':
                        this._onDrop(evt);
                        break;
    
                    case 'dragover':
                    case 'dragenter':
                        if (dragEl) {
                            this._onDragOver(evt);
                            _globalDragOver(evt);
                        }
                        break;
    
                    case 'mouseover':
                        this._onDrop(evt);
                        break;
    
                    case 'selectstart':
                        evt.preventDefault();
                        break;
                }
            },
    
    
            /**
             * Serializes the item into an array of string.
             * @returns {String[]}
             */
            toArray: function () {
                var 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)) {
                        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) {
                var items = {}, rootEl = this.el;
    
                this.toArray().forEach(function (id, i) {
                    var el = rootEl.children[i];
    
                    if (_closest(el, this.options.draggable, rootEl)) {
                        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 () {
                var store = this.options.store;
                store && 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);
            },
    
    
            /**
             * Set/get option
             * @param   {string} name
             * @param   {*}      [value]
             * @returns {*}
             */
            option: function (name, value) {
                var options = this.options;
    
                if (value === void 0) {
                    return options[name];
                } else {
                    options[name] = value;
    
                    if (name === 'group') {
                        _prepareGroup(options);
                    }
                }
            },
    
    
            /**
             * Destroy
             */
            destroy: function () {
                var 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');
                });
    
                touchDragOverListeners.splice(touchDragOverListeners.indexOf(this._onDragOver), 1);
    
                this._onDrop();
    
                this.el = el = null;
            }
        };
    
    
        function _cloneHide(sortable, state) {
            if (sortable.lastPullMode !== 'clone') {
                state = true;
            }
    
            if (cloneEl && (cloneEl.state !== state)) {
                _css(cloneEl, 'display', state ? 'none' : '');
    
                if (!state) {
                    if (cloneEl.state) {
                        if (sortable.options.group.revertClone) {
                            rootEl.insertBefore(cloneEl, nextEl);
                            sortable._animate(dragEl, cloneEl);
                        } else {
                            rootEl.insertBefore(cloneEl, dragEl);
                        }
                    }
                }
    
                cloneEl.state = state;
            }
        }
    
    
        function _closest(/**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx) {
            if (el) {
                ctx = ctx || document;
    
                do {
                    if ((selector === '>*' && el.parentNode === ctx) || _matches(el, selector)) {
                        return el;
                    }
                    /* jshint boss:true */
                } while (el = _getParentOrHost(el));
            }
    
            return null;
        }
    
    
        function _getParentOrHost(el) {
            var parent = el.host;
    
            return (parent && parent.nodeType) ? parent : el.parentNode;
        }
    
    
        function _globalDragOver(/**Event*/evt) {
            if (evt.dataTransfer) {
                evt.dataTransfer.dropEffect = 'move';
            }
            evt.preventDefault();
        }
    
    
        function _on(el, event, fn) {
            el.addEventListener(event, fn, captureMode);
        }
    
    
        function _off(el, event, fn) {
            el.removeEventListener(event, fn, captureMode);
        }
    
    
        function _toggleClass(el, name, state) {
            if (el) {
                if (el.classList) {
                    el.classList[state ? 'add' : 'remove'](name);
                }
                else {
                    var className = (' ' + el.className + ' ').replace(R_SPACE, ' ').replace(' ' + name + ' ', ' ');
                    el.className = (className + (state ? ' ' + name : '')).replace(R_SPACE, ' ');
                }
            }
        }
    
    
        function _css(el, prop, val) {
            var style = el && el.style;
    
            if (style) {
                if (val === void 0) {
                    if (document.defaultView && document.defaultView.getComputedStyle) {
                        val = document.defaultView.getComputedStyle(el, '');
                    }
                    else if (el.currentStyle) {
                        val = el.currentStyle;
                    }
    
                    return prop === void 0 ? val : val[prop];
                }
                else {
                    if (!(prop in style)) {
                        prop = '-webkit-' + prop;
                    }
    
                    style[prop] = val + (typeof val === 'string' ? '' : 'px');
                }
            }
        }
    
    
        function _find(ctx, tagName, iterator) {
            if (ctx) {
                var list = ctx.getElementsByTagName(tagName), i = 0, n = list.length;
    
                if (iterator) {
                    for (; i < n; i++) {
                        iterator(list[i], i);
                    }
                }
    
                return list;
            }
    
            return [];
        }
    
    
    
        function _dispatchEvent(sortable, rootEl, name, targetEl, toEl, fromEl, startIndex, newIndex, originalEvt) {
            sortable = (sortable || rootEl[expando]);
    
            var evt = document.createEvent('Event'),
                options = sortable.options,
                onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1);
    
            evt.initEvent(name, true, true);
    
            evt.to = toEl || rootEl;
            evt.from = fromEl || rootEl;
            evt.item = targetEl || rootEl;
            evt.clone = cloneEl;
    
            evt.oldIndex = startIndex;
            evt.newIndex = newIndex;
    
            evt.originalEvent = originalEvt;
    
            rootEl.dispatchEvent(evt);
    
            if (options[onName]) {
                options[onName].call(sortable, evt);
            }
        }
    
    
        function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect, originalEvt, willInsertAfter) {
            var evt,
                sortable = fromEl[expando],
                onMoveFn = sortable.options.onMove,
                retVal;
    
            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 || toEl.getBoundingClientRect();
            evt.willInsertAfter = willInsertAfter;
    
            evt.originalEvent = originalEvt;
    
            fromEl.dispatchEvent(evt);
    
            if (onMoveFn) {
                retVal = onMoveFn.call(sortable, evt, originalEvt);
            }
    
            return retVal;
        }
    
    
        function _disableDraggable(el) {
            el.draggable = false;
        }
    
    
        function _unsilent() {
            _silent = false;
        }
    
    
        /** @returns {HTMLElement|false} */
        function _ghostIsLast(el, evt) {
            var lastEl = el.lastElementChild,
                rect = lastEl.getBoundingClientRect();
    
            // 5 — min delta
            // abs — нельзя добавлять, а то глюки при наведении сверху
            return (evt.clientY - (rect.top + rect.height) > 5) ||
                (evt.clientX - (rect.left + rect.width) > 5);
        }
    
    
        /**
         * Generate id
         * @param   {HTMLElement} el
         * @returns {String}
         * @private
         */
        function _generateId(el) {
            var 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);
        }
    
        /**
         * Returns the index of an element within its parent for a selected set of
         * elements
         * @param  {HTMLElement} el
         * @param  {selector} selector
         * @return {number}
         */
        function _index(el, selector) {
            var index = 0;
    
            if (!el || !el.parentNode) {
                return -1;
            }
    
            while (el && (el = el.previousElementSibling)) {
                if ((el.nodeName.toUpperCase() !== 'TEMPLATE') && (selector === '>*' || _matches(el, selector))) {
                    index++;
                }
            }
    
            return index;
        }
    
        function _matches(/**HTMLElement*/el, /**String*/selector) {
            if (el) {
                try {
                    if (el.matches) {
                        return el.matches(selector);
                    } else if (el.msMatchesSelector) {
                        return el.msMatchesSelector(selector);
                    }
                } catch(_) {
                    return false;
                }
            }
    
            return false;
        }
    
        function _throttle(callback, ms) {
            var args, _this;
    
            return function () {
                if (args === void 0) {
                    args = arguments;
                    _this = this;
    
                    setTimeout(function () {
                        if (args.length === 1) {
                            callback.call(_this, args[0]);
                        } else {
                            callback.apply(_this, args);
                        }
    
                        args = void 0;
                    }, ms);
                }
            };
        }
    
        function _extend(dst, src) {
            if (dst && src) {
                for (var key in src) {
                    if (src.hasOwnProperty(key)) {
                        dst[key] = src[key];
                    }
                }
            }
    
            return dst;
        }
    
        function _clone(el) {
            if (Polymer && Polymer.dom) {
                return Polymer.dom(el).cloneNode(true);
            }
            else if ($) {
                return $(el).clone(true)[0];
            }
            else {
                return el.cloneNode(true);
            }
        }
    
        function _saveInputCheckedState(root) {
            savedInputChecked.length = 0;
    
            var inputs = root.getElementsByTagName('input');
            var idx = inputs.length;
    
            while (idx--) {
                var el = inputs[idx];
                el.checked && savedInputChecked.push(el);
            }
        }
    
        function _nextTick(fn) {
            return setTimeout(fn, 0);
        }
    
        function _cancelNextTick(id) {
            return clearTimeout(id);
        }
    
        // Fixed #973:
        _on(document, 'touchmove', function (evt) {
            if (Sortable.active) {
                evt.preventDefault();
            }
        });
    
        // Export utils
        Sortable.utils = {
            on: _on,
            off: _off,
            css: _css,
            find: _find,
            is: function (el, selector) {
                return !!_closest(el, selector, el);
            },
            extend: _extend,
            throttle: _throttle,
            closest: _closest,
            toggleClass: _toggleClass,
            clone: _clone,
            index: _index,
            nextTick: _nextTick,
            cancelNextTick: _cancelNextTick
        };
    
    
        /**
         * Create sortable instance
         * @param {HTMLElement}  el
         * @param {Object}      [options]
         */
        Sortable.create = function (el, options) {
            return new Sortable(el, options);
        };
    
    
        // Export
        Sortable.version = '1.7.0';
        return Sortable;
    });

    $("tbody").attr("id", 'foo')
    Sortable.create(document.getElementById('foo'), {
    animation: 150
    });

    页面使用代码

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  • 原文地址:https://www.cnblogs.com/yinhuiyang/p/9298483.html
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