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1562 lines
37 KiB
1562 lines
37 KiB
/**! |
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* Sortable |
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* @author RubaXa <trash@rubaxa.org> |
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* @license MIT |
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*/ |
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|
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(function sortableModule(factory) { |
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"use strict"; |
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|
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if (typeof define === "function" && define.amd) { |
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define(factory); |
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} |
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else if (typeof module != "undefined" && typeof module.exports != "undefined") { |
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module.exports = factory(); |
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} |
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else { |
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/* jshint sub:true */ |
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window["Sortable"] = factory(); |
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} |
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})(function sortableFactory() { |
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"use strict"; |
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|
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if (typeof window === "undefined" || !window.document) { |
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return function sortableError() { |
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throw new Error("Sortable.js requires a window with a document"); |
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}; |
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} |
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|
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var dragEl, |
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parentEl, |
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ghostEl, |
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cloneEl, |
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rootEl, |
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nextEl, |
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lastDownEl, |
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scrollEl, |
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scrollParentEl, |
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scrollCustomFn, |
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lastEl, |
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lastCSS, |
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lastParentCSS, |
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oldIndex, |
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newIndex, |
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activeGroup, |
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putSortable, |
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autoScroll = {}, |
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tapEvt, |
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touchEvt, |
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moved, |
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forRepaintDummy, |
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/** @const */ |
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R_SPACE = /\s+/g, |
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R_FLOAT = /left|right|inline/, |
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expando = 'Sortable' + (new Date).getTime(), |
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win = window, |
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document = win.document, |
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parseInt = win.parseInt, |
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setTimeout = win.setTimeout, |
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|
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$ = win.jQuery || win.Zepto, |
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Polymer = win.Polymer, |
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captureMode = false, |
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passiveMode = false, |
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supportDraggable = ('draggable' in document.createElement('div')), |
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supportCssPointerEvents = (function (el) { |
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// false when IE11 |
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if (!!navigator.userAgent.match(/(?:Trident.*rv[ :]?11\.|msie)/i)) { |
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return false; |
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} |
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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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_silent = false, |
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abs = Math.abs, |
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min = Math.min, |
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savedInputChecked = [], |
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touchDragOverListeners = [], |
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alwaysFalse = function () { return false; }, |
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_autoScroll = _throttle(function (/**Event*/evt, /**Object*/options, /**HTMLElement*/rootEl) { |
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// Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521 |
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if (rootEl && options.scroll) { |
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var _this = rootEl[expando], |
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el, |
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rect, |
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sens = options.scrollSensitivity, |
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speed = options.scrollSpeed, |
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x = evt.clientX, |
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y = evt.clientY, |
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winWidth = window.innerWidth, |
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winHeight = window.innerHeight, |
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vx, |
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vy, |
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scrollOffsetX, |
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scrollOffsetY |
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; |
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// Delect scrollEl |
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if (scrollParentEl !== rootEl) { |
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scrollEl = options.scroll; |
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scrollParentEl = rootEl; |
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scrollCustomFn = options.scrollFn; |
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if (scrollEl === true) { |
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scrollEl = rootEl; |
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do { |
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if ((scrollEl.offsetWidth < scrollEl.scrollWidth) || |
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(scrollEl.offsetHeight < scrollEl.scrollHeight) |
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) { |
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break; |
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} |
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/* jshint boss:true */ |
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} while (scrollEl = scrollEl.parentNode); |
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} |
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} |
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if (scrollEl) { |
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el = scrollEl; |
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rect = scrollEl.getBoundingClientRect(); |
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vx = (abs(rect.right - x) <= sens) - (abs(rect.left - x) <= sens); |
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vy = (abs(rect.bottom - y) <= sens) - (abs(rect.top - y) <= sens); |
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} |
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if (!(vx || vy)) { |
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vx = (winWidth - x <= sens) - (x <= sens); |
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vy = (winHeight - y <= sens) - (y <= sens); |
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/* jshint expr:true */ |
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(vx || vy) && (el = win); |
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} |
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if (autoScroll.vx !== vx || autoScroll.vy !== vy || autoScroll.el !== el) { |
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autoScroll.el = el; |
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autoScroll.vx = vx; |
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autoScroll.vy = vy; |
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clearInterval(autoScroll.pid); |
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if (el) { |
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autoScroll.pid = setInterval(function () { |
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scrollOffsetY = vy ? vy * speed : 0; |
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scrollOffsetX = vx ? vx * speed : 0; |
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if ('function' === typeof(scrollCustomFn)) { |
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if (scrollCustomFn.call(_this, scrollOffsetX, scrollOffsetY, evt, touchEvt, el) !== 'continue') { |
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return; |
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} |
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} |
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if (el === win) { |
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win.scrollTo(win.pageXOffset + scrollOffsetX, win.pageYOffset + scrollOffsetY); |
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} else { |
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el.scrollTop += scrollOffsetY; |
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el.scrollLeft += scrollOffsetX; |
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} |
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}, 24); |
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} |
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} |
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} |
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}, 30), |
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_prepareGroup = function (options) { |
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function toFn(value, pull) { |
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if (value == null || value === true) { |
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value = group.name; |
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if (value == null) { |
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return alwaysFalse; |
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} |
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} |
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if (typeof value === 'function') { |
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return value; |
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} else { |
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return function (to, from) { |
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var fromGroup = from.options.group.name; |
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return pull |
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? value |
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: value && (value.join |
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? value.indexOf(fromGroup) > -1 |
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: (fromGroup == value) |
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); |
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}; |
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} |
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} |
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var group = {}; |
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var 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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; |
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// Detect support a passive mode |
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try { |
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window.addEventListener('test', null, Object.defineProperty({}, 'passive', { |
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get: function () { |
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// `false`, because everything starts to work incorrectly and instead of d'n'd, |
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// begins the page has scrolled. |
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passiveMode = false; |
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captureMode = { |
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capture: false, |
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passive: passiveMode |
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}; |
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} |
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})); |
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} catch (err) {} |
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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 HTMLElement, and not ' + {}.toString.call(el); |
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} |
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this.el = el; // root element |
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this.options = options = _extend({}, options); |
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// Export instance |
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el[expando] = this; |
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// Default options |
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var 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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scroll: true, |
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scrollSensitivity: 30, |
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scrollSpeed: 10, |
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draggable: /[uo]l/i.test(el.nodeName) ? 'li' : '>*', |
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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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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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touchStartThreshold: 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 |
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}; |
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// Set default options |
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for (var 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 (var 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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// Bind events |
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_on(el, 'mousedown', this._onTapStart); |
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_on(el, 'touchstart', this._onTapStart); |
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options.supportPointer && _on(el, 'pointerdown', this._onTapStart); |
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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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touchDragOverListeners.push(this._onDragOver); |
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// Restore sorting |
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options.store && this.sort(options.store.get(this)); |
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} |
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Sortable.prototype = /** @lends Sortable.prototype */ { |
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constructor: Sortable, |
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_onTapStart: function (/** Event|TouchEvent */evt) { |
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var _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], |
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target = (touch || evt).target, |
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originalTarget = evt.target.shadowRoot && (evt.path && evt.path[0]) || target, |
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filter = options.filter, |
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startIndex; |
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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 or 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); |
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if (!target) { |
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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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startIndex = _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(_this, originalTarget, 'filter', target, el, el, startIndex); |
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preventOnFilter && 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); |
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if (criteria) { |
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_dispatchEvent(_this, criteria, 'filter', target, el, el, startIndex); |
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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.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)) { |
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return; |
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} |
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// Prepare `dragstart` |
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this._prepareDragStart(evt, touch, target, startIndex); |
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}, |
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_prepareDragStart: function (/** Event */evt, /** Touch */touch, /** HTMLElement */target, /** Number */startIndex) { |
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var _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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|
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if (target && !dragEl && (target.parentNode === el)) { |
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tapEvt = evt; |
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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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oldIndex = startIndex; |
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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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// Delayed drag has been triggered |
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// we can re-enable the events: touchmove/mousemove |
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_this._disableDelayedDrag(); |
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|
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// Make the element draggable |
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dragEl.draggable = _this.nativeDraggable; |
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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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// Bind the events: dragstart/dragend |
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_this._triggerDragStart(evt, touch); |
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|
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// Drag start event |
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_dispatchEvent(_this, rootEl, 'choose', dragEl, rootEl, rootEl, oldIndex); |
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}; |
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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, '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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_on(ownerDocument, 'selectstart', _this); |
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options.supportPointer && _on(ownerDocument, 'pointercancel', _this._onDrop); |
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|
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if (options.delay) { |
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// If the user moves the pointer or let go the click or touch |
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// before the delay has been reached: |
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// disable the delayed drag |
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_on(ownerDocument, 'mouseup', _this._disableDelayedDrag); |
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_on(ownerDocument, 'touchend', _this._disableDelayedDrag); |
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_on(ownerDocument, 'touchcancel', _this._disableDelayedDrag); |
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_on(ownerDocument, 'mousemove', _this._disableDelayedDrag); |
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_on(ownerDocument, 'touchmove', _this._delayedDragTouchMoveHandler); |
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options.supportPointer && _on(ownerDocument, 'pointermove', _this._delayedDragTouchMoveHandler); |
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|
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_this._dragStartTimer = setTimeout(dragStartFn, options.delay); |
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} else { |
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dragStartFn(); |
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} |
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} |
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}, |
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|
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_delayedDragTouchMoveHandler: function (/** TouchEvent|PointerEvent **/e) { |
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if (min(abs(e.clientX - this._lastX), abs(e.clientY - this._lastY)) >= this.options.touchStartThreshold) { |
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this._disableDelayedDrag(); |
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} |
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}, |
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_disableDelayedDrag: function () { |
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var ownerDocument = this.el.ownerDocument; |
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clearTimeout(this._dragStartTimer); |
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_off(ownerDocument, 'mouseup', this._disableDelayedDrag); |
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_off(ownerDocument, 'touchend', this._disableDelayedDrag); |
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_off(ownerDocument, 'touchcancel', this._disableDelayedDrag); |
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_off(ownerDocument, 'mousemove', this._disableDelayedDrag); |
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_off(ownerDocument, 'touchmove', this._disableDelayedDrag); |
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_off(ownerDocument, 'pointermove', this._disableDelayedDrag); |
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}, |
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|
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_triggerDragStart: function (/** Event */evt, /** Touch */touch) { |
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touch = touch || (evt.pointerType == 'touch' ? evt : null); |
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|
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if (touch) { |
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// Touch device support |
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tapEvt = { |
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target: dragEl, |
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clientX: touch.clientX, |
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clientY: touch.clientY |
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}; |
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|
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this._onDragStart(tapEvt, 'touch'); |
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} |
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else if (!this.nativeDraggable) { |
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this._onDragStart(tapEvt, true); |
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} |
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else { |
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_on(dragEl, 'dragend', this); |
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_on(rootEl, 'dragstart', this._onDragStart); |
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} |
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|
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try { |
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if (document.selection) { |
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// Timeout neccessary for IE9 |
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_nextTick(function () { |
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document.selection.empty(); |
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}); |
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} else { |
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window.getSelection().removeAllRanges(); |
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} |
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} catch (err) { |
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} |
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}, |
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|
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_dragStarted: function () { |
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if (rootEl && dragEl) { |
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var options = this.options; |
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|
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// Apply effect |
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_toggleClass(dragEl, options.ghostClass, true); |
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_toggleClass(dragEl, options.dragClass, false); |
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|
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Sortable.active = this; |
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|
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// Drag start event |
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_dispatchEvent(this, rootEl, 'start', dragEl, rootEl, rootEl, oldIndex); |
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} else { |
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this._nulling(); |
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} |
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}, |
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|
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_emulateDragOver: function () { |
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if (touchEvt) { |
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if (this._lastX === touchEvt.clientX && this._lastY === touchEvt.clientY) { |
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return; |
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} |
|
|
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this._lastX = touchEvt.clientX; |
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this._lastY = touchEvt.clientY; |
|
|
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if (!supportCssPointerEvents) { |
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_css(ghostEl, 'display', 'none'); |
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} |
|
|
|
var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY); |
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var parent = target; |
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var i = touchDragOverListeners.length; |
|
|
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while (target && target.shadowRoot) { |
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target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY); |
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parent = target; |
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} |
|
|
|
if (parent) { |
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do { |
|
if (parent[expando]) { |
|
while (i--) { |
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touchDragOverListeners[i]({ |
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clientX: touchEvt.clientX, |
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clientY: touchEvt.clientY, |
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target: target, |
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rootEl: parent |
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}); |
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} |
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|
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break; |
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} |
|
|
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target = parent; // store last element |
|
} |
|
/* jshint boss:true */ |
|
while (parent = parent.parentNode); |
|
} |
|
|
|
if (!supportCssPointerEvents) { |
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_css(ghostEl, 'display', ''); |
|
} |
|
} |
|
}, |
|
|
|
|
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_onTouchMove: function (/**TouchEvent*/evt) { |
|
if (tapEvt) { |
|
var options = this.options, |
|
fallbackTolerance = options.fallbackTolerance, |
|
fallbackOffset = options.fallbackOffset, |
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touch = evt.touches ? evt.touches[0] : evt, |
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dx = (touch.clientX - tapEvt.clientX) + fallbackOffset.x, |
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dy = (touch.clientY - tapEvt.clientY) + fallbackOffset.y, |
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translate3d = evt.touches ? 'translate3d(' + dx + 'px,' + dy + 'px,0)' : 'translate(' + dx + 'px,' + dy + 'px)'; |
|
|
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// only set the status to dragging, when we are actually dragging |
|
if (!Sortable.active) { |
|
if (fallbackTolerance && |
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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; |
|
} |
|
else if (target.previousElementSibling === dragEl || dragEl.previousElementSibling === target) { |
|
after = (evt.clientY - targetRect.top) / height > 0.5; |
|
} else { |
|
after = halfway; |
|
} |
|
} else if (!isMovingBetweenSortable) { |
|
after = (nextSibling !== dragEl) && !isLong || halfway; |
|
} |
|
|
|
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; |
|
});
|
|
|