/files/sortable/1.0.1/Sortable.js
JavaScript | 1012 lines | 695 code | 229 blank | 88 comment | 173 complexity | b54dc1d1f551067a078126d219558ada MD5 | raw file
- /**!
- * Sortable
- * @author RubaXa <trash@rubaxa.org>
- * @license MIT
- */
- (function (factory) {
- "use strict";
- if (typeof define === "function" && define.amd) {
- define(factory);
- }
- else if (typeof module != "undefined" && typeof module.exports != "undefined") {
- module.exports = factory();
- }
- else if (typeof Package !== "undefined") {
- Sortable = factory(); // export for Meteor.js
- }
- else {
- /* jshint sub:true */
- window["Sortable"] = factory();
- }
- })(function () {
- "use strict";
- var dragEl,
- ghostEl,
- cloneEl,
- rootEl,
- scrollEl,
- nextEl,
- lastEl,
- lastCSS,
- oldIndex,
- newIndex,
- activeGroup,
- autoScroll = {},
- tapEvt,
- touchEvt,
- expando = 'Sortable' + (new Date).getTime(),
- win = window,
- document = win.document,
- parseInt = win.parseInt,
- supportIEdnd = !!document.createElement('div').dragDrop,
- _silent = false,
- _dispatchEvent = function (rootEl, name, targetEl, fromEl, startIndex, newIndex) {
- var evt = document.createEvent('Event');
- evt.initEvent(name, true, true);
- evt.item = targetEl || rootEl;
- evt.from = fromEl || rootEl;
- evt.clone = cloneEl;
- evt.oldIndex = startIndex;
- evt.newIndex = newIndex;
- rootEl.dispatchEvent(evt);
- },
- _customEvents = 'onAdd onUpdate onRemove onStart onEnd onFilter onSort'.split(' '),
- noop = function () {},
- abs = Math.abs,
- slice = [].slice,
- touchDragOverListeners = []
- ;
- /**
- * @class Sortable
- * @param {HTMLElement} el
- * @param {Object} [options]
- */
- function Sortable(el, options) {
- this.el = el; // root element
- this.options = options = (options || {});
- // Default options
- var defaults = {
- group: Math.random(),
- 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',
- ignore: 'a, img',
- filter: null,
- animation: 0,
- setData: function (dataTransfer, dragEl) {
- dataTransfer.setData('Text', dragEl.textContent);
- },
- dropBubble: false,
- dragoverBubble: false
- };
- // Set default options
- for (var name in defaults) {
- !(name in options) && (options[name] = defaults[name]);
- }
- var group = options.group;
- if (!group || typeof group != 'object') {
- group = options.group = { name: group };
- }
- ['pull', 'put'].forEach(function (key) {
- if (!(key in group)) {
- group[key] = true;
- }
- });
- // Define events
- _customEvents.forEach(function (name) {
- options[name] = _bind(this, options[name] || noop);
- _on(el, name.substr(2).toLowerCase(), options[name]);
- }, this);
- // Export group name
- el[expando] = group.name + ' ' + (group.put.join ? group.put.join(' ') : '');
- // Bind all private methods
- for (var fn in this) {
- if (fn.charAt(0) === '_') {
- this[fn] = _bind(this, this[fn]);
- }
- }
- // Bind events
- _on(el, 'mousedown', this._onTapStart);
- _on(el, 'touchstart', this._onTapStart);
- supportIEdnd && _on(el, 'selectstart', this._onTapStart);
- _on(el, 'dragover', this._onDragOver);
- _on(el, 'dragenter', this._onDragOver);
- touchDragOverListeners.push(this._onDragOver);
- // Restore sorting
- options.store && this.sort(options.store.get(this));
- }
- Sortable.prototype = /** @lends Sortable.prototype */ {
- constructor: Sortable,
- _dragStarted: function () {
- // Apply effect
- _toggleClass(dragEl, this.options.ghostClass, true);
- Sortable.active = this;
- // Drag start event
- _dispatchEvent(rootEl, 'start', dragEl, rootEl, oldIndex);
- },
- _onTapStart: function (/**Event|TouchEvent*/evt) {
- var type = evt.type,
- touch = evt.touches && evt.touches[0],
- target = (touch || evt).target,
- originalTarget = target,
- options = this.options,
- el = this.el,
- filter = options.filter;
- if (type === 'mousedown' && evt.button !== 0 || options.disabled) {
- return; // only left button or enabled
- }
- if (options.handle) {
- target = _closest(target, options.handle, el);
- }
- target = _closest(target, options.draggable, el);
- // get the index of the dragged element within its parent
- oldIndex = _index(target);
- // Check filter
- if (typeof filter === 'function') {
- if (filter.call(this, evt, target, this)) {
- _dispatchEvent(originalTarget, 'filter', target, el, oldIndex);
- evt.preventDefault();
- return; // cancel dnd
- }
- }
- else if (filter) {
- filter = filter.split(',').some(function (criteria) {
- criteria = _closest(originalTarget, criteria.trim(), el);
- if (criteria) {
- _dispatchEvent(criteria, 'filter', target, el, oldIndex);
- return true;
- }
- });
- if (filter) {
- evt.preventDefault();
- return; // cancel dnd
- }
- }
- // Prepare `dragstart`
- if (target && !dragEl && (target.parentNode === el)) {
- // IE 9 Support
- (type === 'selectstart') && target.dragDrop();
- tapEvt = evt;
- rootEl = this.el;
- dragEl = target;
- nextEl = dragEl.nextSibling;
- activeGroup = this.options.group;
- dragEl.draggable = true;
- // Disable "draggable"
- options.ignore.split(',').forEach(function (criteria) {
- _find(target, criteria.trim(), _disableDraggable);
- });
- if (touch) {
- // Touch device support
- tapEvt = {
- target: target,
- clientX: touch.clientX,
- clientY: touch.clientY
- };
- this._onDragStart(tapEvt, true);
- evt.preventDefault();
- }
- _on(document, 'mouseup', this._onDrop);
- _on(document, 'touchend', this._onDrop);
- _on(document, 'touchcancel', this._onDrop);
- _on(dragEl, 'dragend', this);
- _on(rootEl, 'dragstart', this._onDragStart);
- _on(document, 'dragover', this);
- try {
- if (document.selection) {
- document.selection.empty();
- } else {
- window.getSelection().removeAllRanges();
- }
- } catch (err) {
- }
- }
- },
- _emulateDragOver: function () {
- if (touchEvt) {
- _css(ghostEl, 'display', 'none');
- var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY),
- parent = target,
- groupName = this.options.group.name,
- i = touchDragOverListeners.length;
- if (parent) {
- do {
- if ((' ' + parent[expando] + ' ').indexOf(groupName) > -1) {
- 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);
- }
- _css(ghostEl, 'display', '');
- }
- },
- _onTouchMove: function (/**TouchEvent*/evt) {
- if (tapEvt) {
- var touch = evt.touches[0],
- dx = touch.clientX - tapEvt.clientX,
- dy = touch.clientY - tapEvt.clientY,
- translate3d = 'translate3d(' + dx + 'px,' + dy + 'px,0)';
- touchEvt = touch;
- _css(ghostEl, 'webkitTransform', translate3d);
- _css(ghostEl, 'mozTransform', translate3d);
- _css(ghostEl, 'msTransform', translate3d);
- _css(ghostEl, 'transform', translate3d);
- this._onDrag(touch);
- evt.preventDefault();
- }
- },
- _onDragStart: function (/**Event*/evt, /**boolean*/isTouch) {
- var dataTransfer = evt.dataTransfer,
- options = this.options;
- this._offUpEvents();
- if (activeGroup.pull == 'clone') {
- cloneEl = dragEl.cloneNode(true);
- _css(cloneEl, 'display', 'none');
- rootEl.insertBefore(cloneEl, dragEl);
- }
- if (isTouch) {
- var rect = dragEl.getBoundingClientRect(),
- css = _css(dragEl),
- ghostRect;
- ghostEl = dragEl.cloneNode(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');
- rootEl.appendChild(ghostEl);
- // Fixing dimensions.
- ghostRect = ghostEl.getBoundingClientRect();
- _css(ghostEl, 'width', rect.width * 2 - ghostRect.width);
- _css(ghostEl, 'height', rect.height * 2 - ghostRect.height);
- // Bind touch events
- _on(document, 'touchmove', this._onTouchMove);
- _on(document, 'touchend', this._onDrop);
- _on(document, 'touchcancel', this._onDrop);
- this._loopId = setInterval(this._emulateDragOver, 150);
- }
- else {
- if (dataTransfer) {
- dataTransfer.effectAllowed = 'move';
- options.setData && options.setData.call(this, dataTransfer, dragEl);
- }
- _on(document, 'drop', this);
- }
- scrollEl = options.scroll;
- if (scrollEl === true) {
- scrollEl = rootEl;
- do {
- if ((scrollEl.offsetWidth < scrollEl.scrollWidth) ||
- (scrollEl.offsetHeight < scrollEl.scrollHeight)
- ) {
- break;
- }
- /* jshint boss:true */
- } while (scrollEl = scrollEl.parentNode);
- }
- setTimeout(this._dragStarted, 0);
- },
- _onDrag: _throttle(function (/**Event*/evt) {
- // Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
- if (rootEl && this.options.scroll) {
- var el,
- rect,
- options = this.options,
- sens = options.scrollSensitivity,
- speed = options.scrollSpeed,
- x = evt.clientX,
- y = evt.clientY,
- winWidth = window.innerWidth,
- winHeight = window.innerHeight,
- vx = (winWidth - x <= sens) - (x <= sens),
- vy = (winHeight - y <= sens) - (y <= sens)
- ;
- if (vx || vy) {
- el = win;
- }
- else 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 (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 () {
- if (el === win) {
- win.scrollTo(win.scrollX + vx * speed, win.scrollY + vy * speed);
- } else {
- vy && (el.scrollTop += vy * speed);
- vx && (el.scrollLeft += vx * speed);
- }
- }, 24);
- }
- }
- }
- }, 30),
- _onDragOver: function (/**Event*/evt) {
- var el = this.el,
- target,
- dragRect,
- revert,
- options = this.options,
- group = options.group,
- groupPut = group.put,
- isOwner = (activeGroup === group),
- canSort = options.sort;
- if (evt.preventDefault !== void 0) {
- evt.preventDefault();
- !options.dragoverBubble && evt.stopPropagation();
- }
- if (!_silent && activeGroup &&
- (isOwner
- ? canSort || (revert = !rootEl.contains(dragEl))
- : activeGroup.pull && groupPut && (
- (activeGroup.name === group.name) || // by Name
- (groupPut.indexOf && ~groupPut.indexOf(activeGroup.name)) // by Array
- )
- ) &&
- (evt.rootEl === void 0 || evt.rootEl === this.el)
- ) {
- target = _closest(evt.target, options.draggable, el);
- dragRect = dragEl.getBoundingClientRect();
- if (revert) {
- _cloneHide(true);
- 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) && (target = _ghostInBottom(el, evt))
- ) {
- if (target) {
- if (target.animated) {
- return;
- }
- targetRect = target.getBoundingClientRect();
- }
- _cloneHide(isOwner);
- el.appendChild(dragEl);
- 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);
- }
- var targetRect = target.getBoundingClientRect(),
- width = targetRect.right - targetRect.left,
- height = targetRect.bottom - targetRect.top,
- floating = /left|right|inline/.test(lastCSS.cssFloat + lastCSS.display),
- 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
- ;
- _silent = true;
- setTimeout(_unsilent, 30);
- _cloneHide(isOwner);
- if (floating) {
- after = (target.previousElementSibling === dragEl) && !isWide || halfway && isWide;
- } else {
- after = (nextSibling !== dragEl) && !isLong || halfway && isLong;
- }
- if (after && !nextSibling) {
- el.appendChild(dragEl);
- } else {
- target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
- }
- this._animate(dragRect, dragEl);
- this._animate(targetRect, target);
- }
- }
- },
- _animate: function (prevRect, target) {
- var ms = this.options.animation;
- if (ms) {
- var currentRect = target.getBoundingClientRect();
- _css(target, 'transition', 'none');
- _css(target, 'transform', 'translate3d('
- + (prevRect.left - currentRect.left) + 'px,'
- + (prevRect.top - currentRect.top) + 'px,0)'
- );
- 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', '');
- target.animated = false;
- }, ms);
- }
- },
- _offUpEvents: function () {
- _off(document, 'mouseup', this._onDrop);
- _off(document, 'touchmove', this._onTouchMove);
- _off(document, 'touchend', this._onDrop);
- _off(document, 'touchcancel', this._onDrop);
- },
- _onDrop: function (/**Event*/evt) {
- var el = this.el,
- options = this.options;
- clearInterval(this._loopId);
- clearInterval(autoScroll.pid);
- // Unbind events
- _off(document, 'drop', this);
- _off(document, 'dragover', this);
- _off(el, 'dragstart', this._onDragStart);
- this._offUpEvents();
- if (evt) {
- evt.preventDefault();
- !options.dropBubble && evt.stopPropagation();
- ghostEl && ghostEl.parentNode.removeChild(ghostEl);
- if (dragEl) {
- _off(dragEl, 'dragend', this);
- _disableDraggable(dragEl);
- _toggleClass(dragEl, this.options.ghostClass, false);
- if (rootEl !== dragEl.parentNode) {
- newIndex = _index(dragEl);
- // drag from one list and drop into another
- _dispatchEvent(dragEl.parentNode, 'sort', dragEl, rootEl, oldIndex, newIndex);
- _dispatchEvent(rootEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
- // Add event
- _dispatchEvent(dragEl, 'add', dragEl, rootEl, oldIndex, newIndex);
- // Remove event
- _dispatchEvent(rootEl, 'remove', dragEl, rootEl, oldIndex, newIndex);
- }
- else {
- // Remove clone
- cloneEl && cloneEl.parentNode.removeChild(cloneEl);
- if (dragEl.nextSibling !== nextEl) {
- // Get the index of the dragged element within its parent
- newIndex = _index(dragEl);
- // drag & drop within the same list
- _dispatchEvent(rootEl, 'update', dragEl, rootEl, oldIndex, newIndex);
- _dispatchEvent(rootEl, 'sort', dragEl, rootEl, oldIndex, newIndex);
- }
- }
- // Drag end event
- Sortable.active && _dispatchEvent(rootEl, 'end', dragEl, rootEl, oldIndex, newIndex);
- }
- // Set NULL
- rootEl =
- dragEl =
- ghostEl =
- nextEl =
- cloneEl =
- tapEvt =
- touchEvt =
- lastEl =
- lastCSS =
- activeGroup =
- Sortable.active = null;
- // Save sorting
- this.save();
- }
- },
- handleEvent: function (/**Event*/evt) {
- var type = evt.type;
- if (type === 'dragover') {
- this._onDrag(evt);
- _globalDragOver(evt);
- }
- else if (type === 'drop' || type === 'dragend') {
- this._onDrop(evt);
- }
- },
- /**
- * Serializes the item into an array of string.
- * @returns {String[]}
- */
- toArray: function () {
- var order = [],
- el,
- children = this.el.children,
- i = 0,
- n = children.length;
- for (; i < n; i++) {
- el = children[i];
- if (_closest(el, this.options.draggable, this.el)) {
- order.push(el.getAttribute('data-id') || _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;
- }
- },
- /**
- * Destroy
- */
- destroy: function () {
- var el = this.el, options = this.options;
- _customEvents.forEach(function (name) {
- _off(el, name.substr(2).toLowerCase(), options[name]);
- });
- _off(el, 'mousedown', this._onTapStart);
- _off(el, 'touchstart', this._onTapStart);
- _off(el, 'selectstart', this._onTapStart);
- _off(el, 'dragover', this._onDragOver);
- _off(el, 'dragenter', this._onDragOver);
- //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 = null;
- }
- };
- function _cloneHide(state) {
- if (cloneEl && (cloneEl.state !== state)) {
- _css(cloneEl, 'display', state ? 'none' : '');
- !state && cloneEl.state && rootEl.insertBefore(cloneEl, dragEl);
- cloneEl.state = state;
- }
- }
- function _bind(ctx, fn) {
- var args = slice.call(arguments, 2);
- return fn.bind ? fn.bind.apply(fn, [ctx].concat(args)) : function () {
- return fn.apply(ctx, args.concat(slice.call(arguments)));
- };
- }
- function _closest(/**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx) {
- if (el) {
- ctx = ctx || document;
- selector = selector.split('.');
- var tag = selector.shift().toUpperCase(),
- re = new RegExp('\\s(' + selector.join('|') + ')\\s', 'g');
- do {
- if (
- (tag === '>*' && el.parentNode === ctx) || (
- (tag === '' || el.nodeName.toUpperCase() == tag) &&
- (!selector.length || ((' ' + el.className + ' ').match(re) || []).length == selector.length)
- )
- ) {
- return el;
- }
- }
- while (el !== ctx && (el = el.parentNode));
- }
- return null;
- }
- function _globalDragOver(/**Event*/evt) {
- evt.dataTransfer.dropEffect = 'move';
- evt.preventDefault();
- }
- function _on(el, event, fn) {
- el.addEventListener(event, fn, false);
- }
- function _off(el, event, fn) {
- el.removeEventListener(event, fn, false);
- }
- function _toggleClass(el, name, state) {
- if (el) {
- if (el.classList) {
- el.classList[state ? 'add' : 'remove'](name);
- }
- else {
- var className = (' ' + el.className + ' ').replace(/\s+/g, ' ').replace(' ' + name + ' ', '');
- el.className = className + (state ? ' ' + name : '');
- }
- }
- }
- 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 _disableDraggable(el) {
- el.draggable = false;
- }
- function _unsilent() {
- _silent = false;
- }
- /** @returns {HTMLElement|false} */
- function _ghostInBottom(el, evt) {
- var lastEl = el.lastElementChild, rect = lastEl.getBoundingClientRect();
- return (evt.clientY - (rect.top + rect.height) > 5) && lastEl; // min delta
- }
- /**
- * 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
- * @param el
- * @returns {number}
- * @private
- */
- function _index(/**HTMLElement*/el) {
- var index = 0;
- while (el && (el = el.previousElementSibling) && (el.nodeName.toUpperCase() !== 'TEMPLATE')) {
- index++;
- }
- return index;
- }
- 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);
- }
- };
- }
- // Export utils
- Sortable.utils = {
- on: _on,
- off: _off,
- css: _css,
- find: _find,
- bind: _bind,
- is: function (el, selector) {
- return !!_closest(el, selector, el);
- },
- throttle: _throttle,
- closest: _closest,
- toggleClass: _toggleClass,
- dispatchEvent: _dispatchEvent,
- index: _index
- };
- Sortable.version = '1.0.1';
- /**
- * Create sortable instance
- * @param {HTMLElement} el
- * @param {Object} [options]
- */
- Sortable.create = function (el, options) {
- return new Sortable(el, options);
- };
- // Export
- return Sortable;
- });