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/*! UIkit 3.11.2-dev.4c11be04b | https://www.getuikit.com | (c) 2014 - 2022 YOOtheme | MIT License */
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('uikit-util')) :
typeof define === 'function' && define.amd ? define('uikitsortable', ['uikit-util'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.UIkitSortable = factory(global.UIkit.util));
})(this, (function (uikitUtil) { 'use strict';
function getRows(items) {
return sortBy(items, 'top', 'bottom');
}
function sortBy(items, startProp, endProp) {
var sorted = [[]];
for (var i = 0; i < items.length; i++) {
var el = items[i];
if (!uikitUtil.isVisible(el)) {
continue;
}
var dim = getOffset(el);
for (var j = sorted.length - 1; j >= 0; j--) {
var current = sorted[j];
if (!current[0]) {
current.push(el);
break;
}
var startDim = (void 0);
if (current[0].offsetParent === el.offsetParent) {
startDim = getOffset(current[0]);
} else {
dim = getOffset(el, true);
startDim = getOffset(current[0], true);
}
if (dim[startProp] >= startDim[endProp] - 1 && dim[startProp] !== startDim[startProp]) {
sorted.push([el]);
break;
}
if (dim[endProp] - 1 > startDim[startProp] || dim[startProp] === startDim[startProp]) {
current.push(el);
break;
}
if (j === 0) {
sorted.unshift([el]);
break;
}
}
}
return sorted;
}
function getOffset(element, offset) {
var assign;
if ( offset === void 0 ) offset = false;
var offsetTop = element.offsetTop;
var offsetLeft = element.offsetLeft;
var offsetHeight = element.offsetHeight;
var offsetWidth = element.offsetWidth;
if (offset) {
(assign = uikitUtil.offsetPosition(element), offsetTop = assign[0], offsetLeft = assign[1]);
}
return {
top: offsetTop,
left: offsetLeft,
bottom: offsetTop + offsetHeight,
right: offsetLeft + offsetWidth
};
}
var clsLeave = 'uk-transition-leave';
var clsEnter = 'uk-transition-enter';
function fade(action, target, duration, stagger) {
if ( stagger === void 0 ) stagger = 0;
var index = transitionIndex(target, true);
var propsIn = {opacity: 1};
var propsOut = {opacity: 0};
var wrapIndexFn = function (fn) { return function () { return index === transitionIndex(target) ? fn() : uikitUtil.Promise.reject(); }; };
var leaveFn = wrapIndexFn(function () {
uikitUtil.addClass(target, clsLeave);
return uikitUtil.Promise.all(getTransitionNodes(target).map(function (child, i) { return new uikitUtil.Promise(function (resolve) { return setTimeout(function () { return uikitUtil.Transition.start(child, propsOut, duration / 2, 'ease').then(resolve); }, i * stagger); }
); }
)).then(function () { return uikitUtil.removeClass(target, clsLeave); });
});
var enterFn = wrapIndexFn(function () {
var oldHeight = uikitUtil.height(target);
uikitUtil.addClass(target, clsEnter);
action();
uikitUtil.css(uikitUtil.children(target), {opacity: 0});
// Ensure UIkit updates have propagated
return new uikitUtil.Promise(function (resolve) { return requestAnimationFrame(function () {
var nodes = uikitUtil.children(target);
var newHeight = uikitUtil.height(target);
// Ensure Grid cells do not stretch when height is applied
uikitUtil.css(target, 'alignContent', 'flex-start');
uikitUtil.height(target, oldHeight);
var transitionNodes = getTransitionNodes(target);
uikitUtil.css(nodes, propsOut);
var transitions = transitionNodes.map(function (child, i) { return new uikitUtil.Promise(function (resolve) { return setTimeout(function () { return uikitUtil.Transition.start(child, propsIn, duration / 2, 'ease').then(resolve); }, i * stagger); }
); }
);
if (oldHeight !== newHeight) {
transitions.push(uikitUtil.Transition.start(target, {height: newHeight}, duration / 2 + transitionNodes.length * stagger, 'ease'));
}
uikitUtil.Promise.all(transitions).then(function () {
uikitUtil.removeClass(target, clsEnter);
if (index === transitionIndex(target)) {
uikitUtil.css(target, {height: '', alignContent: ''});
uikitUtil.css(nodes, {opacity: ''});
delete target.dataset.transition;
}
resolve();
});
}); }
);
});
return uikitUtil.hasClass(target, clsLeave)
? waitTransitionend(target).then(enterFn)
: uikitUtil.hasClass(target, clsEnter)
? waitTransitionend(target).then(leaveFn).then(enterFn)
: leaveFn().then(enterFn);
}
function transitionIndex(target, next) {
if (next) {
target.dataset.transition = 1 + transitionIndex(target);
}
return uikitUtil.toNumber(target.dataset.transition) || 0;
}
function waitTransitionend(target) {
return uikitUtil.Promise.all(uikitUtil.children(target).filter(uikitUtil.Transition.inProgress).map(function (el) { return new uikitUtil.Promise(function (resolve) { return uikitUtil.once(el, 'transitionend transitioncanceled', resolve); }); }
));
}
function getTransitionNodes(target) {
return getRows(uikitUtil.children(target)).reduce(function (nodes, row) { return nodes.concat(uikitUtil.sortBy(row.filter(function (el) { return uikitUtil.isInView(el); }), 'offsetLeft')); }, []);
}
function slide (action, target, duration) {
return new uikitUtil.Promise(function (resolve) { return requestAnimationFrame(function () {
var nodes = uikitUtil.children(target);
// Get current state
var currentProps = nodes.map(function (el) { return getProps(el, true); });
var targetProps = uikitUtil.css(target, ['height', 'padding']);
// Cancel previous animations
uikitUtil.Transition.cancel(target);
nodes.forEach(uikitUtil.Transition.cancel);
reset(target);
// Adding, sorting, removing nodes
action();
// Find new nodes
nodes = nodes.concat(uikitUtil.children(target).filter(function (el) { return !uikitUtil.includes(nodes, el); }));
// Wait for update to propagate
uikitUtil.Promise.resolve().then(function () {
// Force update
uikitUtil.fastdom.flush();
// Get new state
var targetPropsTo = uikitUtil.css(target, ['height', 'padding']);
var ref = getTransitionProps(target, nodes, currentProps);
var propsTo = ref[0];
var propsFrom = ref[1];
// Reset to previous state
nodes.forEach(function (el, i) { return propsFrom[i] && uikitUtil.css(el, propsFrom[i]); });
uikitUtil.css(target, uikitUtil.assign({display: 'block'}, targetProps));
// Start transitions on next frame
requestAnimationFrame(function () {
var transitions = nodes.map(function (el, i) { return uikitUtil.parent(el) === target && uikitUtil.Transition.start(el, propsTo[i], duration, 'ease'); }
).concat(uikitUtil.Transition.start(target, targetPropsTo, duration, 'ease'));
uikitUtil.Promise.all(transitions).then(function () {
nodes.forEach(function (el, i) { return uikitUtil.parent(el) === target && uikitUtil.css(el, 'display', propsTo[i].opacity === 0 ? 'none' : ''); });
reset(target);
}, uikitUtil.noop).then(resolve);
});
});
}); });
}
function getProps(el, opacity) {
var zIndex = uikitUtil.css(el, 'zIndex');
return uikitUtil.isVisible(el)
? uikitUtil.assign({
display: '',
opacity: opacity ? uikitUtil.css(el, 'opacity') : '0',
pointerEvents: 'none',
position: 'absolute',
zIndex: zIndex === 'auto' ? uikitUtil.index(el) : zIndex
}, getPositionWithMargin(el))
: false;
}
function getTransitionProps(target, nodes, currentProps) {
var propsTo = nodes.map(function (el, i) { return uikitUtil.parent(el) && i in currentProps
? currentProps[i]
? uikitUtil.isVisible(el)
? getPositionWithMargin(el)
: {opacity: 0}
: {opacity: uikitUtil.isVisible(el) ? 1 : 0}
: false; });
var propsFrom = propsTo.map(function (props, i) {
var from = uikitUtil.parent(nodes[i]) === target && (currentProps[i] || getProps(nodes[i]));
if (!from) {
return false;
}
if (!props) {
delete from.opacity;
} else if (!('opacity' in props)) {
var opacity = from.opacity;
if (opacity % 1) {
props.opacity = 1;
} else {
delete from.opacity;
}
}
return from;
});
return [propsTo, propsFrom];
}
function reset(el) {
uikitUtil.css(el.children, {
height: '',
left: '',
opacity: '',
pointerEvents: '',
position: '',
top: '',
marginTop: '',
marginLeft: '',
transform: '',
width: '',
zIndex: ''
});
uikitUtil.css(el, {height: '', display: '', padding: ''});
}
function getPositionWithMargin(el) {
var ref = uikitUtil.offset(el);
var height = ref.height;
var width = ref.width;
var ref$1 = uikitUtil.position(el);
var top = ref$1.top;
var left = ref$1.left;
var ref$2 = uikitUtil.css(el, ['marginTop', 'marginLeft']);
var marginLeft = ref$2.marginLeft;
var marginTop = ref$2.marginTop;
return {top: top, left: left, height: height, width: width, marginLeft: marginLeft, marginTop: marginTop, transform: ''};
}
var Animate = {
props: {
duration: Number,
animation: Boolean
},
data: {
duration: 150,
animation: 'slide'
},
methods: {
animate: function(action, target) {
var this$1$1 = this;
if ( target === void 0 ) target = this.$el;
var name = this.animation;
var animationFn = name === 'fade'
? fade
: name === 'delayed-fade'
? function () {
var args = [], len = arguments.length;
while ( len-- ) args[ len ] = arguments[ len ];
return fade.apply(void 0, args.concat( [40] ));
}
: name
? slide
: function () {
action();
return uikitUtil.Promise.resolve();
};
return animationFn(action, target, this.duration)
.then(function () { return this$1$1.$update(target, 'resize'); }, uikitUtil.noop);
}
}
};
var Class = {
connected: function() {
!uikitUtil.hasClass(this.$el, this.$name) && uikitUtil.addClass(this.$el, this.$name);
}
};
var Component = {
mixins: [Class, Animate],
props: {
group: String,
threshold: Number,
clsItem: String,
clsPlaceholder: String,
clsDrag: String,
clsDragState: String,
clsBase: String,
clsNoDrag: String,
clsEmpty: String,
clsCustom: String,
handle: String
},
data: {
group: false,
threshold: 5,
clsItem: 'uk-sortable-item',
clsPlaceholder: 'uk-sortable-placeholder',
clsDrag: 'uk-sortable-drag',
clsDragState: 'uk-drag',
clsBase: 'uk-sortable',
clsNoDrag: 'uk-sortable-nodrag',
clsEmpty: 'uk-sortable-empty',
clsCustom: '',
handle: false,
pos: {}
},
created: function() {
var this$1$1 = this;
['init', 'start', 'move', 'end'].forEach(function (key) {
var fn = this$1$1[key];
this$1$1[key] = function (e) {
uikitUtil.assign(this$1$1.pos, uikitUtil.getEventPos(e));
fn(e);
};
});
},
events: {
name: uikitUtil.pointerDown,
passive: false,
handler: 'init'
},
computed: {
target: function() {
return (this.$el.tBodies || [this.$el])[0];
},
items: function() {
return uikitUtil.children(this.target);
},
isEmpty: {
get: function() {
return uikitUtil.isEmpty(this.items);
},
watch: function(empty) {
uikitUtil.toggleClass(this.target, this.clsEmpty, empty);
},
immediate: true
},
handles: {
get: function(ref, el) {
var handle = ref.handle;
return handle ? uikitUtil.$$(handle, el) : this.items;
},
watch: function(handles, prev) {
uikitUtil.css(prev, {touchAction: '', userSelect: ''});
uikitUtil.css(handles, {touchAction: uikitUtil.hasTouch ? 'none' : '', userSelect: 'none'}); // touchAction set to 'none' causes a performance drop in Chrome 80
},
immediate: true
}
},
update: {
write: function(data) {
if (!this.drag || !uikitUtil.parent(this.placeholder)) {
return;
}
var ref = this;
var ref_pos = ref.pos;
var x = ref_pos.x;
var y = ref_pos.y;
var ref_origin = ref.origin;
var offsetTop = ref_origin.offsetTop;
var offsetLeft = ref_origin.offsetLeft;
var placeholder = ref.placeholder;
uikitUtil.css(this.drag, {
top: y - offsetTop,
left: x - offsetLeft
});
var sortable = this.getSortable(document.elementFromPoint(x, y));
if (!sortable) {
return;
}
var items = sortable.items;
if (items.some(uikitUtil.Transition.inProgress)) {
return;
}
var target = findTarget(items, {x: x, y: y});
if (items.length && (!target || target === placeholder)) {
return;
}
var previous = this.getSortable(placeholder);
var insertTarget = findInsertTarget(sortable.target, target, placeholder, x, y, sortable === previous && data.moved !== target);
if (insertTarget === false) {
return;
}
if (insertTarget && placeholder === insertTarget) {
return;
}
if (sortable !== previous) {
previous.remove(placeholder);
data.moved = target;
} else {
delete data.moved;
}
sortable.insert(placeholder, insertTarget);
this.touched.add(sortable);
},
events: ['move']
},
methods: {
init: function(e) {
var target = e.target;
var button = e.button;
var defaultPrevented = e.defaultPrevented;
var ref = this.items.filter(function (el) { return uikitUtil.within(target, el); });
var placeholder = ref[0];
if (!placeholder
|| defaultPrevented
|| button > 0
|| uikitUtil.isInput(target)
|| uikitUtil.within(target, ("." + (this.clsNoDrag)))
|| this.handle && !uikitUtil.within(target, this.handle)
) {
return;
}
e.preventDefault();
this.touched = new Set([this]);
this.placeholder = placeholder;
this.origin = uikitUtil.assign({target: target, index: uikitUtil.index(placeholder)}, this.pos);
uikitUtil.on(document, uikitUtil.pointerMove, this.move);
uikitUtil.on(document, uikitUtil.pointerUp, this.end);
if (!this.threshold) {
this.start(e);
}
},
start: function(e) {
this.drag = appendDrag(this.$container, this.placeholder);
var ref = this.placeholder.getBoundingClientRect();
var left = ref.left;
var top = ref.top;
uikitUtil.assign(this.origin, {offsetLeft: this.pos.x - left, offsetTop: this.pos.y - top});
uikitUtil.addClass(this.drag, this.clsDrag, this.clsCustom);
uikitUtil.addClass(this.placeholder, this.clsPlaceholder);
uikitUtil.addClass(this.items, this.clsItem);
uikitUtil.addClass(document.documentElement, this.clsDragState);
uikitUtil.trigger(this.$el, 'start', [this, this.placeholder]);
trackScroll(this.pos);
this.move(e);
},
move: function(e) {
if (this.drag) {
this.$emit('move');
} else if (Math.abs(this.pos.x - this.origin.x) > this.threshold || Math.abs(this.pos.y - this.origin.y) > this.threshold) {
this.start(e);
}
},
end: function() {
var this$1$1 = this;
uikitUtil.off(document, uikitUtil.pointerMove, this.move);
uikitUtil.off(document, uikitUtil.pointerUp, this.end);
uikitUtil.off(window, 'scroll', this.scroll);
if (!this.drag) {
return;
}
untrackScroll();
var sortable = this.getSortable(this.placeholder);
if (this === sortable) {
if (this.origin.index !== uikitUtil.index(this.placeholder)) {
uikitUtil.trigger(this.$el, 'moved', [this, this.placeholder]);
}
} else {
uikitUtil.trigger(sortable.$el, 'added', [sortable, this.placeholder]);
uikitUtil.trigger(this.$el, 'removed', [this, this.placeholder]);
}
uikitUtil.trigger(this.$el, 'stop', [this, this.placeholder]);
uikitUtil.remove(this.drag);
this.drag = null;
this.touched.forEach(function (ref) {
var clsPlaceholder = ref.clsPlaceholder;
var clsItem = ref.clsItem;
return this$1$1.touched.forEach(function (sortable) { return uikitUtil.removeClass(sortable.items, clsPlaceholder, clsItem); }
);
}
);
this.touched = null;
uikitUtil.removeClass(document.documentElement, this.clsDragState);
},
insert: function(element, target) {
var this$1$1 = this;
uikitUtil.addClass(this.items, this.clsItem);
var insert = function () { return target
? uikitUtil.before(target, element)
: uikitUtil.append(this$1$1.target, element); };
this.animate(insert);
},
remove: function(element) {
if (!uikitUtil.within(element, this.target)) {
return;
}
this.animate(function () { return uikitUtil.remove(element); });
},
getSortable: function(element) {
do {
var sortable = this.$getComponent(element, 'sortable');
if (sortable && (sortable === this || this.group !== false && sortable.group === this.group)) {
return sortable;
}
} while ((element = uikitUtil.parent(element)));
}
}
};
var trackTimer;
function trackScroll(pos) {
var last = Date.now();
trackTimer = setInterval(function () {
var x = pos.x;
var y = pos.y;
y += window.pageYOffset;
var dist = (Date.now() - last) * .3;
last = Date.now();
uikitUtil.scrollParents(document.elementFromPoint(x, pos.y), /auto|scroll/).reverse().some(function (scrollEl) {
var scroll = scrollEl.scrollTop;
var scrollHeight = scrollEl.scrollHeight;
var ref = uikitUtil.offset(uikitUtil.getViewport(scrollEl));
var top = ref.top;
var bottom = ref.bottom;
var height = ref.height;
if (top < y && top + 35 > y) {
scroll -= dist;
} else if (bottom > y && bottom - 35 < y) {
scroll += dist;
} else {
return;
}
if (scroll > 0 && scroll < scrollHeight - height) {
uikitUtil.scrollTop(scrollEl, scroll);
return true;
}
});
}, 15);
}
function untrackScroll() {
clearInterval(trackTimer);
}
function appendDrag(container, element) {
var clone = uikitUtil.append(container, element.outerHTML.replace(/(^<)(?:li|tr)|(?:li|tr)(\/>$)/g, '$1div$2'));
uikitUtil.css(clone, 'margin', '0', 'important');
uikitUtil.css(clone, uikitUtil.assign({
boxSizing: 'border-box',
width: element.offsetWidth,
height: element.offsetHeight
}, uikitUtil.css(element, ['paddingLeft', 'paddingRight', 'paddingTop', 'paddingBottom'])));
uikitUtil.height(clone.firstElementChild, uikitUtil.height(element.firstElementChild));
return clone;
}
function findTarget(items, point) {
return items[uikitUtil.findIndex(items, function (item) { return uikitUtil.pointInRect(point, item.getBoundingClientRect()); })];
}
function findInsertTarget(list, target, placeholder, x, y, sameList) {
if (!uikitUtil.children(list).length) {
return;
}
var rect = target.getBoundingClientRect();
if (!sameList) {
if (!isHorizontal(list, placeholder)) {
return y < rect.top + rect.height / 2
? target
: target.nextElementSibling;
}
return target;
}
var placeholderRect = placeholder.getBoundingClientRect();
var sameRow = linesIntersect(
[rect.top, rect.bottom],
[placeholderRect.top, placeholderRect.bottom]
);
var pointerPos = sameRow ? x : y;
var lengthProp = sameRow ? 'width' : 'height';
var startProp = sameRow ? 'left' : 'top';
var endProp = sameRow ? 'right' : 'bottom';
var diff = placeholderRect[lengthProp] < rect[lengthProp] ? rect[lengthProp] - placeholderRect[lengthProp] : 0;
if (placeholderRect[startProp] < rect[startProp]) {
if (diff && pointerPos < rect[startProp] + diff) {
return false;
}
return target.nextElementSibling;
}
if (diff && pointerPos > rect[endProp] - diff) {
return false;
}
return target;
}
function isHorizontal(list, placeholder) {
var single = uikitUtil.children(list).length === 1;
if (single) {
uikitUtil.append(list, placeholder);
}
var items = uikitUtil.children(list);
var isHorizontal = items.some(function (el, i) {
var rectA = el.getBoundingClientRect();
return items.slice(i + 1).some(function (el) {
var rectB = el.getBoundingClientRect();
return !linesIntersect([rectA.left, rectA.right], [rectB.left, rectB.right]);
});
});
if (single) {
uikitUtil.remove(placeholder);
}
return isHorizontal;
}
function linesIntersect(lineA, lineB) {
return lineA[1] > lineB[0] && lineB[1] > lineA[0];
}
if (typeof window !== 'undefined' && window.UIkit) {
window.UIkit.component('sortable', Component);
}
return Component;
}));