File: /home/confeduphaar/backip-old-files/media/com_jevents/js/Sortable.js
/**!
* Sortable
* @author RubaXa <trash@rubaxa.org>
* @author owenm <owen23355@gmail.com>
* @license MIT
*
* see https://github.com/RubaXa/Sortable
*/
(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,
oldIndex,
newIndex,
activeGroup,
putSortable,
autoScrolls = [],
scrolling = false,
awaitingDragStarted = false,
ignoreNextClick = false,
sortables = [],
pointerElemChangedInterval,
lastPointerElemX,
lastPointerElemY,
tapEvt,
touchEvt,
moved,
lastTarget,
lastDirection,
pastFirstInvertThresh = false,
isCircumstantialInvert = false,
lastMode, // 'swap' or 'insert'
targetMoveDistance,
// For positioning ghost absolutely
ghostRelativeParent,
ghostRelativeParentInitialScroll = [], // (left, top)
forRepaintDummy,
realDragElRect, // dragEl rect after current animation
/** @const */
R_SPACE = /\s+/g,
expando = 'Sortable' + (new Date).getTime(),
win = window,
document = win.document,
parseInt = win.parseInt,
setTimeout = win.setTimeout,
$ = win.jQuery || win.Zepto,
Polymer = win.Polymer,
captureMode = {
capture: false,
passive: false
},
IE11OrLess = !!navigator.userAgent.match(/(?:Trident.*rv[ :]?11\.|msie|iemobile)/i),
Edge = !!navigator.userAgent.match(/Edge/i),
FireFox = !!navigator.userAgent.match(/firefox/i),
Safari = !!(navigator.userAgent.match(/safari/i) && !navigator.userAgent.match(/chrome/i) && !navigator.userAgent.match(/android/i)),
IOS = !!(navigator.userAgent.match(/iP(ad|od|hone)/i)),
PositionGhostAbsolutely = IOS,
CSSFloatProperty = Edge || IE11OrLess ? 'cssFloat' : 'float',
// This will not pass for IE9, because IE9 DnD only works on anchors
supportDraggable = ('draggable' in document.createElement('div')),
supportCssPointerEvents = (function() {
// false when <= IE11
if (IE11OrLess) {
return false;
}
var el = document.createElement('x');
el.style.cssText = 'pointer-events:auto';
return el.style.pointerEvents === 'auto';
})(),
_silent = false,
_alignedSilent = false,
abs = Math.abs,
min = Math.min,
max = Math.max,
savedInputChecked = [],
_detectDirection = function(el, options) {
var elCSS = _css(el),
elWidth = parseInt(elCSS.width)
- parseInt(elCSS.paddingLeft)
- parseInt(elCSS.paddingRight)
- parseInt(elCSS.borderLeftWidth)
- parseInt(elCSS.borderRightWidth),
child1 = _getChild(el, 0, options),
child2 = _getChild(el, 1, options),
firstChildCSS = child1 && _css(child1),
secondChildCSS = child2 && _css(child2),
firstChildWidth = firstChildCSS && parseInt(firstChildCSS.marginLeft) + parseInt(firstChildCSS.marginRight) + _getRect(child1).width,
secondChildWidth = secondChildCSS && parseInt(secondChildCSS.marginLeft) + parseInt(secondChildCSS.marginRight) + _getRect(child2).width;
if (elCSS.display === 'flex') {
return elCSS.flexDirection === 'column' || elCSS.flexDirection === 'column-reverse'
? 'vertical' : 'horizontal';
}
if (elCSS.display === 'grid') {
return elCSS.gridTemplateColumns.split(' ').length <= 1 ? 'vertical' : 'horizontal';
}
if (child1 && firstChildCSS.float !== 'none') {
var touchingSideChild2 = firstChildCSS.float === 'left' ? 'left' : 'right';
return child2 && (secondChildCSS.clear === 'both' || secondChildCSS.clear === touchingSideChild2) ?
'vertical' : 'horizontal';
}
return (child1 &&
(
firstChildCSS.display === 'block' ||
firstChildCSS.display === 'flex' ||
firstChildCSS.display === 'table' ||
firstChildCSS.display === 'grid' ||
firstChildWidth >= elWidth &&
elCSS[CSSFloatProperty] === 'none' ||
child2 &&
elCSS[CSSFloatProperty] === 'none' &&
firstChildWidth + secondChildWidth > elWidth
) ?
'vertical' : 'horizontal'
);
},
/**
* Detects first nearest empty sortable to X and Y position using emptyInsertThreshold.
* @param {Number} x X position
* @param {Number} y Y position
* @return {HTMLElement} Element of the first found nearest Sortable
*/
_detectNearestEmptySortable = function(x, y) {
for (var i = 0; i < sortables.length; i++) {
if (_lastChild(sortables[i])) continue;
var rect = _getRect(sortables[i]),
threshold = sortables[i][expando].options.emptyInsertThreshold,
insideHorizontally = x >= (rect.left - threshold) && x <= (rect.right + threshold),
insideVertically = y >= (rect.top - threshold) && y <= (rect.bottom + threshold);
if (threshold && insideHorizontally && insideVertically) {
return sortables[i];
}
}
},
_isClientInRowColumn = function(x, y, el, axis, options) {
var targetRect = _getRect(el),
targetS1Opp = axis === 'vertical' ? targetRect.left : targetRect.top,
targetS2Opp = axis === 'vertical' ? targetRect.right : targetRect.bottom,
mouseOnOppAxis = axis === 'vertical' ? x : y;
return targetS1Opp < mouseOnOppAxis && mouseOnOppAxis < targetS2Opp;
},
_isElInRowColumn = function(el1, el2, axis) {
var el1Rect = el1 === dragEl && realDragElRect || _getRect(el1),
el2Rect = el2 === dragEl && realDragElRect || _getRect(el2),
el1S1Opp = axis === 'vertical' ? el1Rect.left : el1Rect.top,
el1S2Opp = axis === 'vertical' ? el1Rect.right : el1Rect.bottom,
el1OppLength = axis === 'vertical' ? el1Rect.width : el1Rect.height,
el2S1Opp = axis === 'vertical' ? el2Rect.left : el2Rect.top,
el2S2Opp = axis === 'vertical' ? el2Rect.right : el2Rect.bottom,
el2OppLength = axis === 'vertical' ? el2Rect.width : el2Rect.height;
return (
el1S1Opp === el2S1Opp ||
el1S2Opp === el2S2Opp ||
(el1S1Opp + el1OppLength / 2) === (el2S1Opp + el2OppLength / 2)
);
},
_getParentAutoScrollElement = function(el, includeSelf) {
// skip to window
if (!el || !el.getBoundingClientRect) return _getWindowScrollingElement();
var elem = el;
var gotSelf = false;
do {
// we don't need to get elem css if it isn't even overflowing in the first place (performance)
if (elem.clientWidth < elem.scrollWidth || elem.clientHeight < elem.scrollHeight) {
var elemCSS = _css(elem);
if (
elem.clientWidth < elem.scrollWidth && (elemCSS.overflowX == 'auto' || elemCSS.overflowX == 'scroll') ||
elem.clientHeight < elem.scrollHeight && (elemCSS.overflowY == 'auto' || elemCSS.overflowY == 'scroll')
) {
if (!elem || !elem.getBoundingClientRect || elem === document.body) return _getWindowScrollingElement();
if (gotSelf || includeSelf) return elem;
gotSelf = true;
}
}
/* jshint boss:true */
} while (elem = elem.parentNode);
return _getWindowScrollingElement();
},
_getWindowScrollingElement = function() {
if (IE11OrLess) {
return document.documentElement;
} else {
return document.scrollingElement;
}
},
_scrollBy = function(el, x, y) {
el.scrollLeft += x;
el.scrollTop += y;
},
_autoScroll = _throttle(function (/**Event*/evt, /**Object*/options, /**HTMLElement*/rootEl, /**Boolean*/isFallback) {
// Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
if (options.scroll) {
var _this = rootEl ? rootEl[expando] : window,
sens = options.scrollSensitivity,
speed = options.scrollSpeed,
x = evt.clientX,
y = evt.clientY,
winScroller = _getWindowScrollingElement(),
scrollThisInstance = false;
// Detect scrollEl
if (scrollParentEl !== rootEl) {
_clearAutoScrolls();
scrollEl = options.scroll;
scrollCustomFn = options.scrollFn;
if (scrollEl === true) {
scrollEl = _getParentAutoScrollElement(rootEl, true);
scrollParentEl = scrollEl;
}
}
var layersOut = 0;
var currentParent = scrollEl;
do {
var el = currentParent,
rect = _getRect(el),
top = rect.top,
bottom = rect.bottom,
left = rect.left,
right = rect.right,
width = rect.width,
height = rect.height,
scrollWidth,
scrollHeight,
css,
vx,
vy,
canScrollX,
canScrollY,
scrollPosX,
scrollPosY;
scrollWidth = el.scrollWidth;
scrollHeight = el.scrollHeight;
css = _css(el);
scrollPosX = el.scrollLeft;
scrollPosY = el.scrollTop;
if (el === winScroller) {
canScrollX = width < scrollWidth && (css.overflowX === 'auto' || css.overflowX === 'scroll' || css.overflowX === 'visible');
canScrollY = height < scrollHeight && (css.overflowY === 'auto' || css.overflowY === 'scroll' || css.overflowY === 'visible');
} else {
canScrollX = width < scrollWidth && (css.overflowX === 'auto' || css.overflowX === 'scroll');
canScrollY = height < scrollHeight && (css.overflowY === 'auto' || css.overflowY === 'scroll');
}
vx = canScrollX && (abs(right - x) <= sens && (scrollPosX + width) < scrollWidth) - (abs(left - x) <= sens && !!scrollPosX);
vy = canScrollY && (abs(bottom - y) <= sens && (scrollPosY + height) < scrollHeight) - (abs(top - y) <= sens && !!scrollPosY);
if (!autoScrolls[layersOut]) {
for (var i = 0; i <= layersOut; i++) {
if (!autoScrolls[i]) {
autoScrolls[i] = {};
}
}
}
if (autoScrolls[layersOut].vx != vx || autoScrolls[layersOut].vy != vy || autoScrolls[layersOut].el !== el) {
autoScrolls[layersOut].el = el;
autoScrolls[layersOut].vx = vx;
autoScrolls[layersOut].vy = vy;
clearInterval(autoScrolls[layersOut].pid);
if (el && (vx != 0 || vy != 0)) {
scrollThisInstance = true;
/* jshint loopfunc:true */
autoScrolls[layersOut].pid = setInterval((function () {
// emulate drag over during autoscroll (fallback), emulating native DnD behaviour
if (isFallback && this.layer === 0) {
Sortable.active._emulateDragOver(true);
Sortable.active._onTouchMove(touchEvt, true);
}
var scrollOffsetY = autoScrolls[this.layer].vy ? autoScrolls[this.layer].vy * speed : 0;
var scrollOffsetX = autoScrolls[this.layer].vx ? autoScrolls[this.layer].vx * speed : 0;
if ('function' === typeof(scrollCustomFn)) {
if (scrollCustomFn.call(_this, scrollOffsetX, scrollOffsetY, evt, touchEvt, autoScrolls[this.layer].el) !== 'continue') {
return;
}
}
_scrollBy(autoScrolls[this.layer].el, scrollOffsetX, scrollOffsetY);
}).bind({layer: layersOut}), 24);
}
}
layersOut++;
} while (options.bubbleScroll && currentParent !== winScroller && (currentParent = _getParentAutoScrollElement(currentParent, false)));
scrolling = scrollThisInstance; // in case another function catches scrolling as false in between when it is not
}
}, 30),
_clearAutoScrolls = function () {
autoScrolls.forEach(function(autoScroll) {
clearInterval(autoScroll.pid);
});
autoScrolls = [];
},
_prepareGroup = function (options) {
function toFn(value, pull) {
return function(to, from, dragEl, evt) {
var sameGroup = to.options.group.name &&
from.options.group.name &&
to.options.group.name === from.options.group.name;
if (value == null && (pull || sameGroup)) {
// Default pull value
// Default pull and put value if same group
return true;
} else if (value == null || value === false) {
return false;
} else if (pull && value === 'clone') {
return value;
} else if (typeof value === 'function') {
return toFn(value(to, from, dragEl, evt), pull)(to, from, dragEl, evt);
} else {
var otherGroup = (pull ? to : from).options.group.name;
return (value === true ||
(typeof value === 'string' && value === otherGroup) ||
(value.join && value.indexOf(otherGroup) > -1));
}
};
}
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;
},
_checkAlignment = function(evt) {
if (!dragEl || !dragEl.parentNode) return;
dragEl.parentNode[expando] && dragEl.parentNode[expando]._computeIsAligned(evt);
},
_isTrueParentSortable = function(el, target) {
var trueParent = target;
while (!trueParent[expando]) {
trueParent = trueParent.parentNode;
}
return el === trueParent;
},
_artificalBubble = function(sortable, originalEvt, method) {
// Artificial IE bubbling
var nextParent = sortable.parentNode;
while (nextParent && !nextParent[expando]) {
nextParent = nextParent.parentNode;
}
if (nextParent) {
nextParent[expando][method](_extend(originalEvt, {
artificialBubble: true
}));
}
},
_hideGhostForTarget = function() {
if (!supportCssPointerEvents && ghostEl) {
_css(ghostEl, 'display', 'none');
}
},
_unhideGhostForTarget = function() {
if (!supportCssPointerEvents && ghostEl) {
_css(ghostEl, 'display', '');
}
};
// #1184 fix - Prevent click event on fallback if dragged but item not changed position
document.addEventListener('click', function(evt) {
if (ignoreNextClick) {
evt.preventDefault();
evt.stopPropagation && evt.stopPropagation();
evt.stopImmediatePropagation && evt.stopImmediatePropagation();
ignoreNextClick = false;
return false;
}
}, true);
var nearestEmptyInsertDetectEvent = function(evt) {
evt = evt.touches ? evt.touches[0] : evt;
if (dragEl) {
var nearest = _detectNearestEmptySortable(evt.clientX, evt.clientY);
if (nearest) {
// Create imitation event
var event = {};
for (var i in evt) {
event[i] = evt[i];
}
event.target = event.rootEl = nearest;
event.preventDefault = void 0;
event.stopPropagation = void 0;
nearest[expando]._onDragOver(event);
}
}
};
// We do not want this to be triggered if completed (bubbling canceled), so only define it here
_on(document, 'dragover', nearestEmptyInsertDetectEvent);
_on(document, 'mousemove', nearestEmptyInsertDetectEvent);
_on(document, 'touchmove', nearestEmptyInsertDetectEvent);
/**
* @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, 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,
bubbleScroll: true,
draggable: /[uo]l/i.test(el.nodeName) ? '>li' : '>*',
swapThreshold: 1, // percentage; 0 <= x <= 1
invertSwap: false, // invert always
invertedSwapThreshold: null, // will be set to same as swapThreshold if default
removeCloneOnHide: true,
direction: function() {
return _detectDirection(el, this.options);
},
ghostClass: 'sortable-ghost',
chosenClass: 'sortable-chosen',
dragClass: 'sortable-drag',
ignore: 'a, img',
filter: null,
preventOnFilter: true,
animation: 0,
easing: null,
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 && (
('PointerEvent' in window) ||
window.navigator && ('msPointerEnabled' in window.navigator) // microsoft
),
emptyInsertThreshold: 5
};
// 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;
if (this.nativeDraggable) {
// Touch start threshold cannot be greater than the native dragstart threshold
this.options.touchStartThreshold = 1;
}
// Bind events
if (options.supportPointer) {
_on(el, 'pointerdown', this._onTapStart);
} else {
_on(el, 'mousedown', this._onTapStart);
_on(el, 'touchstart', this._onTapStart);
}
if (this.nativeDraggable) {
_on(el, 'dragover', this);
_on(el, 'dragenter', this);
}
sortables.push(this.el);
// Restore sorting
options.store && options.store.get && this.sort(options.store.get(this) || []);
}
Sortable.prototype = /** @lends Sortable.prototype */ {
constructor: Sortable,
_computeIsAligned: function(evt) {
var target;
if (ghostEl && !supportCssPointerEvents) {
_hideGhostForTarget();
target = document.elementFromPoint(evt.clientX, evt.clientY);
_unhideGhostForTarget();
} else {
target = evt.target;
}
target = _closest(target, this.options.draggable, this.el, false);
if (_alignedSilent) return;
if (!dragEl || dragEl.parentNode !== this.el) return;
var children = this.el.children;
for (var i = 0; i < children.length; i++) {
// Don't change for target in case it is changed to aligned before onDragOver is fired
if (_closest(children[i], this.options.draggable, this.el, false) && children[i] !== target) {
children[i].sortableMouseAligned = _isClientInRowColumn(evt.clientX, evt.clientY, children[i], this._getDirection(evt, null), this.options);
}
}
// Used for nulling last target when not in element, nothing to do with checking if aligned
if (!_closest(target, this.options.draggable, this.el, true)) {
lastTarget = null;
}
_alignedSilent = true;
setTimeout(function() {
_alignedSilent = false;
}, 30);
},
_getDirection: function(evt, target) {
return (typeof this.options.direction === 'function') ? this.options.direction.call(this, evt, target, dragEl) : this.options.direction;
},
_onTapStart: function (/** Event|TouchEvent */evt) {
if (!evt.cancelable) return;
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]) || (evt.composedPath && evt.composedPath()[0])) || target,
filter = options.filter,
startIndex;
_saveInputCheckedState(el);
// IE: Calls events in capture mode if event element is nested. This ensures only correct element's _onTapStart goes through.
// This process is also done in _onDragOver
if (IE11OrLess && !evt.artificialBubble && !_isTrueParentSortable(el, target)) {
return;
}
// 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 and enabled
}
// cancel dnd if original target is content editable
if (originalTarget.isContentEditable) {
return;
}
target = _closest(target, options.draggable, el, false);
if (!target) {
if (IE11OrLess) {
_artificalBubble(el, evt, '_onTapStart');
}
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.cancelable && evt.preventDefault();
return; // cancel dnd
}
}
else if (filter) {
filter = filter.split(',').some(function (criteria) {
criteria = _closest(originalTarget, criteria.trim(), el, false);
if (criteria) {
_dispatchEvent(_this, criteria, 'filter', target, el, el, startIndex);
return true;
}
});
if (filter) {
preventOnFilter && evt.cancelable && evt.preventDefault();
return; // cancel dnd
}
}
if (options.handle && !_closest(originalTarget, options.handle, el, false)) {
return;
}
// Prepare `dragstart`
this._prepareDragStart(evt, touch, target, startIndex);
},
_handleAutoScroll: function(evt, fallback) {
if (!dragEl || !this.options.scroll) return;
var x = evt.clientX,
y = evt.clientY,
elem = document.elementFromPoint(x, y),
_this = this;
// IE does not seem to have native autoscroll,
// Edge's autoscroll seems too conditional,
// MACOS Safari does not have autoscroll,
// Firefox and Chrome are good
if (fallback || Edge || IE11OrLess || Safari) {
_autoScroll(evt, _this.options, elem, fallback);
// Listener for pointer element change
var ogElemScroller = _getParentAutoScrollElement(elem, true);
if (
scrolling &&
(
!pointerElemChangedInterval ||
x !== lastPointerElemX ||
y !== lastPointerElemY
)
) {
pointerElemChangedInterval && clearInterval(pointerElemChangedInterval);
// Detect for pointer elem change, emulating native DnD behaviour
pointerElemChangedInterval = setInterval(function() {
if (!dragEl) return;
// could also check if scroll direction on newElem changes due to parent autoscrolling
var newElem = _getParentAutoScrollElement(document.elementFromPoint(x, y), true);
if (newElem !== ogElemScroller) {
ogElemScroller = newElem;
_clearAutoScrolls();
_autoScroll(evt, _this.options, ogElemScroller, fallback);
}
}, 10);
lastPointerElemX = x;
lastPointerElemY = y;
}
} else {
// if DnD is enabled (and browser has good autoscrolling), first autoscroll will already scroll, so get parent autoscroll of first autoscroll
if (!_this.options.bubbleScroll || _getParentAutoScrollElement(elem, true) === _getWindowScrollingElement()) {
_clearAutoScrolls();
return;
}
_autoScroll(evt, _this.options, _getParentAutoScrollElement(elem, false), false);
}
},
_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)) {
rootEl = el;
dragEl = target;
parentEl = dragEl.parentNode;
nextEl = dragEl.nextSibling;
lastDownEl = target;
activeGroup = options.group;
oldIndex = startIndex;
tapEvt = {
target: dragEl,
clientX: (touch || evt).clientX,
clientY: (touch || evt).clientY
};
this._lastX = (touch || evt).clientX;
this._lastY = (touch || evt).clientY;
dragEl.style['will-change'] = 'all';
// undo animation if needed
dragEl.style.transition = '';
dragEl.style.transform = '';
dragStartFn = function () {
// Delayed drag has been triggered
// we can re-enable the events: touchmove/mousemove
_this._disableDelayedDragEvents();
if (!FireFox && _this.nativeDraggable) {
dragEl.draggable = true;
}
// Bind the events: dragstart/dragend
_this._triggerDragStart(evt, touch);
// Drag start event
_dispatchEvent(_this, rootEl, 'choose', dragEl, rootEl, rootEl, oldIndex);
// Chosen item
_toggleClass(dragEl, options.chosenClass, true);
};
// Disable "draggable"
options.ignore.split(',').forEach(function (criteria) {
_find(dragEl, criteria.trim(), _disableDraggable);
});
if (options.supportPointer) {
_on(ownerDocument, 'pointerup', _this._onDrop);
} else {
_on(ownerDocument, 'mouseup', _this._onDrop);
_on(ownerDocument, 'touchend', _this._onDrop);
_on(ownerDocument, 'touchcancel', _this._onDrop);
}
// Make dragEl draggable (must be before delay for FireFox)
if (FireFox && this.nativeDraggable) {
this.options.touchStartThreshold = 4;
dragEl.draggable = true;
}
// Delay is impossible for native DnD in Edge or IE
if (options.delay && (!this.nativeDraggable || !(Edge || IE11OrLess))) {
// 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._delayedDragTouchMoveHandler);
_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) {
var touch = e.touches ? e.touches[0] : e;
if (max(abs(touch.clientX - this._lastX), abs(touch.clientY - this._lastY))
>= Math.floor(this.options.touchStartThreshold / (this.nativeDraggable && window.devicePixelRatio || 1))
) {
this._disableDelayedDrag();
}
},
_disableDelayedDrag: function () {
dragEl && _disableDraggable(dragEl);
clearTimeout(this._dragStartTimer);
this._disableDelayedDragEvents();
},
_disableDelayedDragEvents: function () {
var ownerDocument = this.el.ownerDocument;
_off(ownerDocument, 'mouseup', this._disableDelayedDrag);
_off(ownerDocument, 'touchend', this._disableDelayedDrag);
_off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
_off(ownerDocument, 'mousemove', this._delayedDragTouchMoveHandler);
_off(ownerDocument, 'touchmove', this._delayedDragTouchMoveHandler);
_off(ownerDocument, 'pointermove', this._delayedDragTouchMoveHandler);
},
_triggerDragStart: function (/** Event */evt, /** Touch */touch) {
touch = touch || (evt.pointerType == 'touch' ? evt : null);
if (!this.nativeDraggable || touch) {
if (this.options.supportPointer) {
_on(document, 'pointermove', this._onTouchMove);
} else if (touch) {
_on(document, 'touchmove', this._onTouchMove);
} else {
_on(document, 'mousemove', this._onTouchMove);
}
} else {
_on(dragEl, 'dragend', this);
_on(rootEl, 'dragstart', this._onDragStart);
}
try {
if (document.selection) {
// Timeout neccessary for IE9
_nextTick(function () {
document.selection.empty();
});
} else {
window.getSelection().removeAllRanges();
}
} catch (err) {
}
},
_dragStarted: function (fallback, evt) {
awaitingDragStarted = false;
if (rootEl && dragEl) {
if (this.nativeDraggable) {
_on(document, 'dragover', this._handleAutoScroll);
_on(document, 'dragover', _checkAlignment);
}
var options = this.options;
// Apply effect
!fallback && _toggleClass(dragEl, options.dragClass, false);
_toggleClass(dragEl, options.ghostClass, true);
// In case dragging an animated element
_css(dragEl, 'transform', '');
Sortable.active = this;
fallback && this._appendGhost();
// Drag start event
_dispatchEvent(this, rootEl, 'start', dragEl, rootEl, rootEl, oldIndex, undefined, evt);
} else {
this._nulling();
}
},
_emulateDragOver: function (forAutoScroll) {
if (touchEvt) {
if (this._lastX === touchEvt.clientX && this._lastY === touchEvt.clientY && !forAutoScroll) {
return;
}
this._lastX = touchEvt.clientX;
this._lastY = touchEvt.clientY;
_hideGhostForTarget();
var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
var parent = target;
while (target && target.shadowRoot) {
target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
parent = target;
}
if (parent) {
do {
if (parent[expando]) {
var inserted;
inserted = parent[expando]._onDragOver({
clientX: touchEvt.clientX,
clientY: touchEvt.clientY,
target: target,
rootEl: parent
});
if (inserted && !this.options.dragoverBubble) {
break;
}
}
target = parent; // store last element
}
/* jshint boss:true */
while (parent = parent.parentNode);
}
dragEl.parentNode[expando]._computeIsAligned(touchEvt);
_unhideGhostForTarget();
}
},
_onTouchMove: function (/**TouchEvent*/evt, forAutoScroll) {
if (tapEvt) {
var options = this.options,
fallbackTolerance = options.fallbackTolerance,
fallbackOffset = options.fallbackOffset,
touch = evt.touches ? evt.touches[0] : evt,
matrix = ghostEl && _matrix(ghostEl),
scaleX = ghostEl && matrix && matrix.a,
scaleY = ghostEl && matrix && matrix.d,
relativeScrollOffset = PositionGhostAbsolutely && ghostRelativeParent && _getRelativeScrollOffset(ghostRelativeParent),
dx = ((touch.clientX - tapEvt.clientX)
+ fallbackOffset.x) / (scaleX || 1)
+ (relativeScrollOffset ? (relativeScrollOffset[0] - ghostRelativeParentInitialScroll[0]) : 0) / (scaleX || 1),
dy = ((touch.clientY - tapEvt.clientY)
+ fallbackOffset.y) / (scaleY || 1)
+ (relativeScrollOffset ? (relativeScrollOffset[1] - ghostRelativeParentInitialScroll[1]) : 0) / (scaleY || 1),
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 && !awaitingDragStarted) {
if (fallbackTolerance &&
min(abs(touch.clientX - this._lastX), abs(touch.clientY - this._lastY)) < fallbackTolerance
) {
return;
}
this._onDragStart(evt, true);
}
!forAutoScroll && this._handleAutoScroll(touch, true);
moved = true;
touchEvt = touch;
_css(ghostEl, 'webkitTransform', translate3d);
_css(ghostEl, 'mozTransform', translate3d);
_css(ghostEl, 'msTransform', translate3d);
_css(ghostEl, 'transform', translate3d);
evt.cancelable && evt.preventDefault();
}
},
_appendGhost: function () {
// Bug if using scale(): https://stackoverflow.com/questions/2637058
// Not being adjusted for
if (!ghostEl) {
var container = this.options.fallbackOnBody ? document.body : rootEl,
rect = _getRect(dragEl, true, container, !PositionGhostAbsolutely),
css = _css(dragEl),
options = this.options;
// Position absolutely
if (PositionGhostAbsolutely) {
// Get relatively positioned parent
ghostRelativeParent = container;
while (
_css(ghostRelativeParent, 'position') === 'static' &&
_css(ghostRelativeParent, 'transform') === 'none' &&
ghostRelativeParent !== document
) {
ghostRelativeParent = ghostRelativeParent.parentNode;
}
if (ghostRelativeParent !== document) {
var ghostRelativeParentRect = _getRect(ghostRelativeParent, true);
rect.top -= ghostRelativeParentRect.top;
rect.left -= ghostRelativeParentRect.left;
}
if (ghostRelativeParent !== document.body && ghostRelativeParent !== document.documentElement) {
if (ghostRelativeParent === document) ghostRelativeParent = _getWindowScrollingElement();
rect.top += ghostRelativeParent.scrollTop;
rect.left += ghostRelativeParent.scrollLeft;
} else {
ghostRelativeParent = _getWindowScrollingElement();
}
ghostRelativeParentInitialScroll = _getRelativeScrollOffset(ghostRelativeParent);
}
ghostEl = dragEl.cloneNode(true);
_toggleClass(ghostEl, options.ghostClass, false);
_toggleClass(ghostEl, options.fallbackClass, true);
_toggleClass(ghostEl, options.dragClass, true);
_css(ghostEl, 'box-sizing', 'border-box');
_css(ghostEl, 'margin', 0);
_css(ghostEl, 'top', rect.top);
_css(ghostEl, 'left', rect.left);
_css(ghostEl, 'width', rect.width);
_css(ghostEl, 'height', rect.height);
_css(ghostEl, 'opacity', '0.8');
_css(ghostEl, 'position', (PositionGhostAbsolutely ? 'absolute' : 'fixed'));
_css(ghostEl, 'zIndex', '100000');
_css(ghostEl, 'pointerEvents', 'none');
container.appendChild(ghostEl);
}
},
_onDragStart: function (/**Event*/evt, /**boolean*/fallback) {
var _this = this;
var dataTransfer = evt.dataTransfer;
var options = _this.options;
// Setup clone
cloneEl = _clone(dragEl);
cloneEl.draggable = false;
cloneEl.style['will-change'] = '';
this._hideClone();
_toggleClass(cloneEl, _this.options.chosenClass, false);
// #1143: IFrame support workaround
_this._cloneId = _nextTick(function () {
if (!_this.options.removeCloneOnHide) {
rootEl.insertBefore(cloneEl, dragEl);
}
_dispatchEvent(_this, rootEl, 'clone', dragEl);
});
!fallback && _toggleClass(dragEl, options.dragClass, true);
// Set proper drop events
if (fallback) {
ignoreNextClick = true;
_this._loopId = setInterval(_this._emulateDragOver, 50);
} else {
// Undo what was set in _prepareDragStart before drag started
_off(document, 'mouseup', _this._onDrop);
_off(document, 'touchend', _this._onDrop);
_off(document, 'touchcancel', _this._onDrop);
if (dataTransfer) {
dataTransfer.effectAllowed = 'move';
options.setData && options.setData.call(_this, dataTransfer, dragEl);
}
_on(document, 'drop', _this);
// #1276 fix:
_css(dragEl, 'transform', 'translateZ(0)');
}
awaitingDragStarted = true;
_this._dragStartId = _nextTick(_this._dragStarted.bind(_this, fallback, evt));
_on(document, 'selectstart', _this);
if (Safari) {
_css(document.body, 'user-select', 'none');
}
},
// Returns true - if no further action is needed (either inserted or another condition)
_onDragOver: function (/**Event*/evt) {
var el = this.el,
target = evt.target,
dragRect,
targetRect,
revert,
options = this.options,
group = options.group,
activeSortable = Sortable.active,
isOwner = (activeGroup === group),
canSort = options.sort,
_this = this;
if (_silent) return;
// IE event order fix
if (IE11OrLess && !evt.rootEl && !evt.artificialBubble && !_isTrueParentSortable(el, target)) {
return;
}
// Return invocation when dragEl is inserted (or completed)
function completed(insertion) {
if (insertion) {
if (isOwner) {
activeSortable._hideClone();
} else {
activeSortable._showClone(_this);
}
if (activeSortable) {
// Set ghost class to new sortable's ghost class
_toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : activeSortable.options.ghostClass, false);
_toggleClass(dragEl, options.ghostClass, true);
}
if (putSortable !== _this && _this !== Sortable.active) {
putSortable = _this;
} else if (_this === Sortable.active) {
putSortable = null;
}
// Animation
dragRect && _this._animate(dragRect, dragEl);
target && targetRect && _this._animate(targetRect, target);
}
// Null lastTarget if it is not inside a previously swapped element
if ((target === dragEl && !dragEl.animated) || (target === el && !target.animated)) {
lastTarget = null;
}
// no bubbling and not fallback
if (!options.dragoverBubble && !evt.rootEl && target !== document) {
_this._handleAutoScroll(evt);
dragEl.parentNode[expando]._computeIsAligned(evt);
}
!options.dragoverBubble && evt.stopPropagation && evt.stopPropagation();
return true;
}
// Call when dragEl has been inserted
function changed() {
_dispatchEvent(_this, rootEl, 'change', target, el, rootEl, oldIndex, _index(dragEl, options.draggable), evt);
}
if (evt.preventDefault !== void 0) {
evt.cancelable && evt.preventDefault();
}
moved = true;
target = _closest(target, options.draggable, el, true);
// target is dragEl or target is animated
if (!!_closest(evt.target, null, dragEl, true) || target.animated) {
return completed(false);
}
if (target !== dragEl) {
ignoreNextClick = false;
}
if (activeSortable && !options.disabled &&
(isOwner
? canSort || (revert = !rootEl.contains(dragEl)) // Reverting item into the original list
: (
putSortable === this ||
(
(this.lastPutMode = activeGroup.checkPull(this, activeSortable, dragEl, evt)) &&
group.checkPut(this, activeSortable, dragEl, evt)
)
)
)
) {
var axis = this._getDirection(evt, target);
dragRect = _getRect(dragEl);
if (revert) {
this._hideClone();
parentEl = rootEl; // actualization
if (nextEl) {
rootEl.insertBefore(dragEl, nextEl);
} else {
rootEl.appendChild(dragEl);
}
return completed(true);
}
var elLastChild = _lastChild(el);
if (!elLastChild || _ghostIsLast(evt, axis, el) && !elLastChild.animated) {
// assign target only if condition is true
if (elLastChild && el === evt.target) {
target = elLastChild;
}
if (target) {
targetRect = _getRect(target);
}
if (isOwner) {
activeSortable._hideClone();
} else {
activeSortable._showClone(this);
}
if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
el.appendChild(dragEl);
parentEl = el; // actualization
realDragElRect = null;
changed();
return completed(true);
}
}
else if (target && target !== dragEl && target.parentNode === el) {
var direction = 0,
targetBeforeFirstSwap,
aligned = target.sortableMouseAligned,
differentLevel = dragEl.parentNode !== el,
side1 = axis === 'vertical' ? 'top' : 'left',
scrolledPastTop = _isScrolledPast(target, 'top') || _isScrolledPast(dragEl, 'top'),
scrollBefore = scrolledPastTop ? scrolledPastTop.scrollTop : void 0;
if (lastTarget !== target) {
lastMode = null;
targetBeforeFirstSwap = _getRect(target)[side1];
pastFirstInvertThresh = false;
}
// Reference: https://www.lucidchart.com/documents/view/10fa0e93-e362-4126-aca2-b709ee56bd8b/0
if (
_isElInRowColumn(dragEl, target, axis) && aligned ||
differentLevel ||
scrolledPastTop ||
options.invertSwap ||
lastMode === 'insert' ||
// Needed, in the case that we are inside target and inserted because not aligned... aligned will stay false while inside
// and lastMode will change to 'insert', but we must swap
lastMode === 'swap'
) {
// New target that we will be inside
if (lastMode !== 'swap') {
isCircumstantialInvert = options.invertSwap || differentLevel;
}
direction = _getSwapDirection(evt, target, axis,
options.swapThreshold, options.invertedSwapThreshold == null ? options.swapThreshold : options.invertedSwapThreshold,
isCircumstantialInvert,
lastTarget === target);
lastMode = 'swap';
} else {
// Insert at position
direction = _getInsertDirection(target);
lastMode = 'insert';
}
if (direction === 0) return completed(false);
realDragElRect = null;
lastTarget = target;
lastDirection = direction;
targetRect = _getRect(target);
var nextSibling = target.nextElementSibling,
after = false;
after = direction === 1;
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);
if (isOwner) {
activeSortable._hideClone();
} else {
activeSortable._showClone(this);
}
if (after && !nextSibling) {
el.appendChild(dragEl);
} else {
target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
}
// Undo chrome's scroll adjustment
if (scrolledPastTop) {
_scrollBy(scrolledPastTop, 0, scrollBefore - scrolledPastTop.scrollTop);
}
parentEl = dragEl.parentNode; // actualization
// must be done before animation
if (targetBeforeFirstSwap !== undefined && !isCircumstantialInvert) {
targetMoveDistance = abs(targetBeforeFirstSwap - _getRect(target)[side1]);
}
changed();
return completed(true);
}
}
if (el.contains(dragEl)) {
return completed(false);
}
}
if (IE11OrLess && !evt.rootEl) {
_artificalBubble(el, evt, '_onDragOver');
}
return false;
},
_animate: function (prevRect, target) {
var ms = this.options.animation;
if (ms) {
var currentRect = _getRect(target);
if (target === dragEl) {
realDragElRect = currentRect;
}
if (prevRect.nodeType === 1) {
prevRect = _getRect(prevRect);
}
// Check if actually moving position
if ((prevRect.left + prevRect.width / 2) !== (currentRect.left + currentRect.width / 2)
|| (prevRect.top + prevRect.height / 2) !== (currentRect.top + currentRect.height / 2)
) {
var matrix = _matrix(this.el),
scaleX = matrix && matrix.a,
scaleY = matrix && matrix.d;
_css(target, 'transition', 'none');
_css(target, 'transform', 'translate3d('
+ (prevRect.left - currentRect.left) / (scaleX ? scaleX : 1) + 'px,'
+ (prevRect.top - currentRect.top) / (scaleY ? scaleY : 1) + 'px,0)'
);
forRepaintDummy = target.offsetWidth; // repaint
_css(target, 'transition', 'transform ' + ms + 'ms' + (this.options.easing ? ' ' + this.options.easing : ''));
_css(target, 'transform', 'translate3d(0,0,0)');
}
(typeof target.animated === 'number') && 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(document, 'selectstart', this);
},
_onDrop: function (/**Event*/evt) {
var el = this.el,
options = this.options;
awaitingDragStarted = false;
scrolling = false;
isCircumstantialInvert = false;
pastFirstInvertThresh = false;
clearInterval(this._loopId);
clearInterval(pointerElemChangedInterval);
_clearAutoScrolls();
_cancelThrottle();
clearTimeout(this._dragStartTimer);
_cancelNextTick(this._cloneId);
_cancelNextTick(this._dragStartId);
// Unbind events
_off(document, 'mousemove', this._onTouchMove);
if (this.nativeDraggable) {
_off(document, 'drop', this);
_off(el, 'dragstart', this._onDragStart);
_off(document, 'dragover', this._handleAutoScroll);
_off(document, 'dragover', _checkAlignment);
}
if (Safari) {
_css(document.body, 'user-select', '');
}
this._offUpEvents();
if (evt) {
if (moved) {
evt.cancelable && evt.preventDefault();
!options.dropBubble && evt.stopPropagation();
}
ghostEl && ghostEl.parentNode && ghostEl.parentNode.removeChild(ghostEl);
if (rootEl === parentEl || (putSortable && putSortable.lastPutMode !== 'clone')) {
// Remove clone
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, putSortable ? putSortable.options.ghostClass : 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);
}
putSortable && putSortable.save();
}
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 =
autoScrolls.length =
pointerElemChangedInterval =
lastPointerElemX =
lastPointerElemY =
tapEvt =
touchEvt =
moved =
newIndex =
oldIndex =
lastTarget =
lastDirection =
forRepaintDummy =
realDragElRect =
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 'dragenter':
case 'dragover':
if (dragEl) {
this._onDragOver(evt);
_globalDragOver(evt);
}
break;
case 'selectstart':
evt.preventDefault();
break;
}
},
/**
* Serializes the item into an array of string.
* @returns {String[]}
*/
toArray: function () {
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, false)) {
order.push(el.getAttribute(options.dataIdAttr) || _generateId(el));
}
}
return order;
},
/**
* Sorts the elements according to the array.
* @param {String[]} order order of the items
*/
sort: function (order) {
var items = {}, rootEl = this.el;
this.toArray().forEach(function (id, i) {
var el = rootEl.children[i];
if (_closest(el, this.options.draggable, rootEl, false)) {
items[id] = el;
}
}, this);
order.forEach(function (id) {
if (items[id]) {
rootEl.removeChild(items[id]);
rootEl.appendChild(items[id]);
}
});
},
/**
* Save the current sorting
*/
save: function () {
var store = this.options.store;
store && store.set && store.set(this);
},
/**
* For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
* @param {HTMLElement} el
* @param {String} [selector] default: `options.draggable`
* @returns {HTMLElement|null}
*/
closest: function (el, selector) {
return _closest(el, selector || this.options.draggable, this.el, false);
},
/**
* Set/get option
* @param {string} name
* @param {*} [value]
* @returns {*}
*/
option: function (name, value) {
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');
});
this._onDrop();
sortables.splice(sortables.indexOf(this.el), 1);
this.el = el = null;
},
_hideClone: function() {
if (!cloneEl.cloneHidden) {
_css(cloneEl, 'display', 'none');
cloneEl.cloneHidden = true;
if (cloneEl.parentNode && this.options.removeCloneOnHide) {
cloneEl.parentNode.removeChild(cloneEl);
}
}
},
_showClone: function(putSortable) {
if (putSortable.lastPutMode !== 'clone') {
this._hideClone();
return;
}
if (cloneEl.cloneHidden) {
// show clone at dragEl or original position
if (rootEl.contains(dragEl) && !this.options.group.revertClone) {
rootEl.insertBefore(cloneEl, dragEl);
} else if (nextEl) {
rootEl.insertBefore(cloneEl, nextEl);
} else {
rootEl.appendChild(cloneEl);
}
if (this.options.group.revertClone) {
this._animate(dragEl, cloneEl);
}
_css(cloneEl, 'display', '');
cloneEl.cloneHidden = false;
}
}
};
function _closest(/**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx, includeCTX) {
if (el) {
ctx = ctx || document;
do {
if (
selector != null &&
(
selector[0] === '>' && el.parentNode === ctx && _matches(el, selector.substring(1)) ||
_matches(el, selector)
) ||
includeCTX && el === ctx
) {
return el;
}
if (el === ctx) break;
/* jshint boss:true */
} while (el = _getParentOrHost(el));
}
return null;
}
function _getParentOrHost(el) {
return (el.host && el !== document && el.host.nodeType)
? el.host
: el.parentNode;
}
function _globalDragOver(/**Event*/evt) {
if (evt.dataTransfer) {
evt.dataTransfer.dropEffect = 'move';
}
evt.cancelable && 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 && name) {
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.indexOf('webkit') === -1) {
prop = '-webkit-' + prop;
}
style[prop] = val + (typeof val === 'string' ? '' : 'px');
}
}
}
function _matrix(el) {
var appliedTransforms = '';
do {
var transform = _css(el, 'transform');
if (transform && transform !== 'none') {
appliedTransforms = transform + ' ' + appliedTransforms;
}
/* jshint boss:true */
} while (el = el.parentNode);
if (window.DOMMatrix) {
return new DOMMatrix(appliedTransforms);
} else if (window.WebKitCSSMatrix) {
return new WebKitCSSMatrix(appliedTransforms);
} else if (window.CSSMatrix) {
return new CSSMatrix(appliedTransforms);
}
}
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,
options = sortable.options,
onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1);
// Support for new CustomEvent feature
if (window.CustomEvent && !IE11OrLess && !Edge) {
evt = new CustomEvent(name, {
bubbles: true,
cancelable: true
});
} else {
evt = document.createEvent('Event');
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;
evt.pullMode = putSortable ? putSortable.lastPutMode : undefined;
if (rootEl) {
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;
// Support for new CustomEvent feature
if (window.CustomEvent && !IE11OrLess && !Edge) {
evt = new CustomEvent('move', {
bubbles: true,
cancelable: true
});
} else {
evt = document.createEvent('Event');
evt.initEvent('move', true, true);
}
evt.to = toEl;
evt.from = fromEl;
evt.dragged = dragEl;
evt.draggedRect = dragRect;
evt.related = targetEl || toEl;
evt.relatedRect = targetRect || _getRect(toEl);
evt.willInsertAfter = willInsertAfter;
evt.originalEvent = originalEvt;
fromEl.dispatchEvent(evt);
if (onMoveFn) {
retVal = onMoveFn.call(sortable, evt, originalEvt);
}
return retVal;
}
function _disableDraggable(el) {
el.draggable = false;
}
function _unsilent() {
_silent = false;
}
/**
* Gets nth child of el, ignoring hidden children, sortable's elements (does not ignore clone if it's visible)
* and non-draggable elements
* @param {HTMLElement} el The parent element
* @param {Number} childNum The index of the child
* @param {Object} options Parent Sortable's options
* @return {HTMLElement} The child at index childNum, or null if not found
*/
function _getChild(el, childNum, options) {
var currentChild = 0,
i = 0,
children = el.children;
while (i < children.length) {
if (
children[i].style.display !== 'none' &&
children[i] !== ghostEl &&
children[i] !== dragEl &&
_closest(children[i], options.draggable, el, false)
) {
if (currentChild === childNum) {
return children[i];
}
currentChild++;
}
i++;
}
return null;
}
/**
* Gets the last child in the el, ignoring ghostEl or invisible elements (clones)
* @param {HTMLElement} el Parent element
* @return {HTMLElement} The last child, ignoring ghostEl
*/
function _lastChild(el) {
var last = el.lastElementChild;
while (last && (last === ghostEl || last.style.display === 'none')) {
last = last.previousElementSibling;
}
return last || null;
}
function _ghostIsLast(evt, axis, el) {
var elRect = _getRect(_lastChild(el)),
mouseOnAxis = axis === 'vertical' ? evt.clientY : evt.clientX,
mouseOnOppAxis = axis === 'vertical' ? evt.clientX : evt.clientY,
targetS2 = axis === 'vertical' ? elRect.bottom : elRect.right,
targetS1Opp = axis === 'vertical' ? elRect.left : elRect.top,
targetS2Opp = axis === 'vertical' ? elRect.right : elRect.bottom,
spacer = 10;
return (
axis === 'vertical' ?
(mouseOnOppAxis > targetS2Opp + spacer || mouseOnOppAxis <= targetS2Opp && mouseOnAxis > targetS2 && mouseOnOppAxis >= targetS1Opp) :
(mouseOnAxis > targetS2 && mouseOnOppAxis > targetS1Opp || mouseOnAxis <= targetS2 && mouseOnOppAxis > targetS2Opp + spacer)
);
}
function _getSwapDirection(evt, target, axis, swapThreshold, invertedSwapThreshold, invertSwap, isLastTarget) {
var targetRect = _getRect(target),
mouseOnAxis = axis === 'vertical' ? evt.clientY : evt.clientX,
targetLength = axis === 'vertical' ? targetRect.height : targetRect.width,
targetS1 = axis === 'vertical' ? targetRect.top : targetRect.left,
targetS2 = axis === 'vertical' ? targetRect.bottom : targetRect.right,
dragRect = _getRect(dragEl),
invert = false;
if (!invertSwap) {
// Never invert or create dragEl shadow when target movemenet causes mouse to move past the end of regular swapThreshold
if (isLastTarget && targetMoveDistance < targetLength * swapThreshold) { // multiplied only by swapThreshold because mouse will already be inside target by (1 - threshold) * targetLength / 2
// check if past first invert threshold on side opposite of lastDirection
if (!pastFirstInvertThresh &&
(lastDirection === 1 ?
(
mouseOnAxis > targetS1 + targetLength * invertedSwapThreshold / 2
) :
(
mouseOnAxis < targetS2 - targetLength * invertedSwapThreshold / 2
)
)
)
{
// past first invert threshold, do not restrict inverted threshold to dragEl shadow
pastFirstInvertThresh = true;
}
if (!pastFirstInvertThresh) {
var dragS1 = axis === 'vertical' ? dragRect.top : dragRect.left,
dragS2 = axis === 'vertical' ? dragRect.bottom : dragRect.right;
// dragEl shadow (target move distance shadow)
if (
lastDirection === 1 ?
(
mouseOnAxis < targetS1 + targetMoveDistance // over dragEl shadow
) :
(
mouseOnAxis > targetS2 - targetMoveDistance
)
)
{
return lastDirection * -1;
}
} else {
invert = true;
}
} else {
// Regular
if (
mouseOnAxis > targetS1 + (targetLength * (1 - swapThreshold) / 2) &&
mouseOnAxis < targetS2 - (targetLength * (1 - swapThreshold) / 2)
) {
return _getInsertDirection(target);
}
}
}
invert = invert || invertSwap;
if (invert) {
// Invert of regular
if (
mouseOnAxis < targetS1 + (targetLength * invertedSwapThreshold / 2) ||
mouseOnAxis > targetS2 - (targetLength * invertedSwapThreshold / 2)
)
{
return ((mouseOnAxis > targetS1 + targetLength / 2) ? 1 : -1);
}
}
return 0;
}
/**
* Gets the direction dragEl must be swapped relative to target in order to make it
* seem that dragEl has been "inserted" into that element's position
* @param {HTMLElement} target The target whose position dragEl is being inserted at
* @return {Number} Direction dragEl must be swapped
*/
function _getInsertDirection(target) {
var dragElIndex = _index(dragEl),
targetIndex = _index(target);
if (dragElIndex < targetIndex) {
return 1;
} else {
return -1;
}
}
/**
* 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') && el !== cloneEl) {
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);
} else if (el.webkitMatchesSelector) {
return el.webkitMatchesSelector(selector);
}
} catch(_) {
return false;
}
}
return false;
}
var _throttleTimeout;
function _throttle(callback, ms) {
return function () {
if (!_throttleTimeout) {
var args = arguments,
_this = this;
_throttleTimeout = setTimeout(function () {
if (args.length === 1) {
callback.call(_this, args[0]);
} else {
callback.apply(_this, args);
}
_throttleTimeout = void 0;
}, ms);
}
};
}
function _cancelThrottle() {
clearTimeout(_throttleTimeout);
_throttleTimeout = void 0;
}
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);
}
/**
* Returns the "bounding client rect" of given element
* @param {HTMLElement} el The element whose boundingClientRect is wanted
* @param {[HTMLElement]} container the parent the element will be placed in
* @param {[Boolean]} adjustForTransform Whether the rect should compensate for parent's transform
* @return {Object} The boundingClientRect of el
*/
function _getRect(el, adjustForTransform, container, adjustForFixed) {
if (!el.getBoundingClientRect && el !== win) return;
var elRect,
top,
left,
bottom,
right,
height,
width;
if (el !== win && el !== _getWindowScrollingElement()) {
elRect = el.getBoundingClientRect();
top = elRect.top;
left = elRect.left;
bottom = elRect.bottom;
right = elRect.right;
height = elRect.height;
width = elRect.width;
} else {
top = 0;
left = 0;
bottom = window.innerHeight;
right = window.innerWidth;
height = window.innerHeight;
width = window.innerWidth;
}
if (adjustForFixed && el !== win) {
// Adjust for translate()
container = container || el.parentNode;
// solves #1123 (see: https://stackoverflow.com/a/37953806/6088312)
// Not needed on <= IE11
if (!IE11OrLess) {
do {
if (container && container.getBoundingClientRect && _css(container, 'transform') !== 'none') {
var containerRect = container.getBoundingClientRect();
// Set relative to edges of padding box of container
top -= containerRect.top + parseInt(_css(container, 'border-top-width'));
left -= containerRect.left + parseInt(_css(container, 'border-left-width'));
bottom = top + elRect.height;
right = left + elRect.width;
break;
}
/* jshint boss:true */
} while (container = container.parentNode);
}
}
if (adjustForTransform && el !== win) {
// Adjust for scale()
var matrix = _matrix(container || el),
scaleX = matrix && matrix.a,
scaleY = matrix && matrix.d;
if (matrix) {
top /= scaleY;
left /= scaleX;
width /= scaleX;
height /= scaleY;
bottom = top + height;
right = left + width;
}
}
return {
top: top,
left: left,
bottom: bottom,
right: right,
width: width,
height: height
};
}
/**
* Checks if a side of an element is scrolled past a side of it's parents
* @param {HTMLElement} el The element who's side being scrolled out of view is in question
* @param {String} side Side of the element in question ('top', 'left', 'right', 'bottom')
* @return {HTMLElement} The parent scroll element that the el's side is scrolled past, or null if there is no such element
*/
function _isScrolledPast(el, side) {
var parent = _getParentAutoScrollElement(el, true),
elSide = _getRect(el)[side];
/* jshint boss:true */
while (parent) {
var parentSide = _getRect(parent)[side],
visible;
if (side === 'top' || side === 'left') {
visible = elSide >= parentSide;
} else {
visible = elSide <= parentSide;
}
if (!visible) return parent;
if (parent === _getWindowScrollingElement()) break;
parent = _getParentAutoScrollElement(parent, false);
}
return false;
}
/**
* Returns the scroll offset of the given element, added with all the scroll offsets of parent elements.
* The value is returned in real pixels.
* @param {HTMLElement} el
* @return {Array} Offsets in the format of [left, top]
*/
function _getRelativeScrollOffset(el) {
var offsetLeft = 0,
offsetTop = 0,
winScroller = _getWindowScrollingElement();
if (el) {
do {
var matrix = _matrix(el),
scaleX = matrix.a,
scaleY = matrix.d;
offsetLeft += el.scrollLeft * scaleX;
offsetTop += el.scrollTop * scaleY;
} while (el !== winScroller && (el = el.parentNode));
}
return [offsetLeft, offsetTop];
}
// Fixed #973:
_on(document, 'touchmove', function(evt) {
if ((Sortable.active || awaitingDragStarted) && evt.cancelable) {
evt.preventDefault();
}
});
// Export utils
Sortable.utils = {
on: _on,
off: _off,
css: _css,
find: _find,
is: function (el, selector) {
return !!_closest(el, selector, el, false);
},
extend: _extend,
throttle: _throttle,
closest: _closest,
toggleClass: _toggleClass,
clone: _clone,
index: _index,
nextTick: _nextTick,
cancelNextTick: _cancelNextTick,
detectDirection: _detectDirection,
getChild: _getChild
};
/**
* Create sortable instance
* @param {HTMLElement} el
* @param {Object} [options]
*/
Sortable.create = function (el, options) {
return new Sortable(el, options);
};
// Export
Sortable.version = '3.6.6';
return Sortable;
});
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