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function plugin(UIkit) {
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if (plugin.installed) {
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return;
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}
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var { mixin, util } = UIkit;
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var {$, docElement: doc, extend, getDimensions, isWithin, on, off, offsetTop, pointerDown, pointerMove, pointerUp, promise, win} = util;
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UIkit.component('sortable', {
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mixins: [mixin.class],
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props: {
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group: String,
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animation: Number,
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threshold: Number,
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clsItem: String,
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clsPlaceholder: String,
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clsDrag: String,
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clsDragState: String,
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clsBase: String,
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clsNoDrag: String,
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clsEmpty: String,
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clsCustom: String,
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handle: String
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},
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defaults: {
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group: false,
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animation: 150,
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threshold: 5,
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clsItem: 'uk-sortable-item',
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clsPlaceholder: 'uk-sortable-placeholder',
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clsDrag: 'uk-sortable-drag',
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clsDragState: 'uk-drag',
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clsBase: 'uk-sortable',
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clsNoDrag: 'uk-sortable-nodrag',
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clsEmpty: 'uk-sortable-empty',
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clsCustom: '',
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handle: false
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},
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init() {
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['init', 'start', 'move', 'end'].forEach(key => {
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let fn = this[key];
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this[key] = e => {
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e = e.originalEvent || e;
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this.scrollY = window.scrollY;
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var {pageX, pageY} = e.touches && e.touches[0] || e;
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this.pos = {x: pageX, y: pageY};
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fn(e);
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}
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});
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},
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events: {
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[pointerDown]: 'init'
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},
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update: {
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write() {
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if (this.clsEmpty) {
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this.$el.toggleClass(this.clsEmpty, !this.$el.children().length);
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}
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if (!this.drag) {
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return;
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}
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this.drag.offset({top: this.pos.y + this.origin.top, left: this.pos.x + this.origin.left});
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var top = offsetTop(this.drag), bottom = top + this.drag[0].offsetHeight;
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if (top > 0 && top < this.scrollY) {
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setTimeout(() => win.scrollTop(this.scrollY - 5), 5);
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} else if (bottom < doc[0].offsetHeight && bottom > window.innerHeight + this.scrollY) {
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setTimeout(() => win.scrollTop(this.scrollY + 5), 5);
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}
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}
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},
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methods: {
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init(e) {
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var target = $(e.target), placeholder = this.$el.children().filter((i, el) => isWithin(e.target, el));
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if (!placeholder.length
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|| target.is(':input')
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|| this.handle && !isWithin(target, this.handle)
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|| e.button && e.button !== 0
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|| isWithin(target, `.${this.clsNoDrag}`)
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) {
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return;
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}
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e.preventDefault();
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e.stopPropagation();
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this.touched = [this];
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this.placeholder = placeholder;
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this.origin = extend({target, index: this.placeholder.index()}, this.pos);
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doc.on(pointerMove, this.move);
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doc.on(pointerUp, this.end);
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win.on('scroll', this.scroll);
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if (!this.threshold) {
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this.start(e);
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}
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},
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start(e) {
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this.drag = $(this.placeholder[0].outerHTML.replace(/^<li/i, '<div').replace(/li>$/i, 'div>'))
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.attr('uk-no-boot', '')
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.addClass(`${this.clsDrag} ${this.clsCustom}`)
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.css({
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boxSizing: 'border-box',
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width: this.placeholder.outerWidth(),
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height: this.placeholder.outerHeight()
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})
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.css(this.placeholder.css(['paddingLeft', 'paddingRight', 'paddingTop', 'paddingBottom']))
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.appendTo(UIkit.container);
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this.drag.children().first().height(this.placeholder.children().height());
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var {left, top} = getDimensions(this.placeholder);
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extend(this.origin, {left: left - this.pos.x, top: top - this.pos.y});
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this.placeholder.addClass(this.clsPlaceholder);
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this.$el.children().addClass(this.clsItem);
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doc.addClass(this.clsDragState);
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this.$el.trigger('start', [this, this.placeholder, this.drag]);
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this.move(e);
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},
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move(e) {
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if (!this.drag) {
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if (Math.abs(this.pos.x - this.origin.x) > this.threshold || Math.abs(this.pos.y - this.origin.y) > this.threshold) {
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this.start(e);
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}
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return;
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}
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this.$emit();
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var target = e.type === 'mousemove' ? e.target : document.elementFromPoint(this.pos.x - document.body.scrollLeft, this.pos.y - document.body.scrollTop),
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sortable = getSortable(target),
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previous = getSortable(this.placeholder[0]),
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move = sortable !== previous;
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if (!sortable || isWithin(target, this.placeholder) || move && (!sortable.group || sortable.group !== previous.group)) {
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return;
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}
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target = sortable.$el.is(target.parentNode) && $(target) || sortable.$el.children().has(target);
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if (move) {
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previous.remove(this.placeholder);
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} else if (!target.length) {
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return;
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}
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sortable.insert(this.placeholder, target);
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if (!~this.touched.indexOf(sortable)) {
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this.touched.push(sortable);
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}
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},
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scroll() {
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var scroll = window.scrollY;
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if (scroll !== this.scrollY) {
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this.pos.y += scroll - this.scrollY;
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this.scrollY = scroll;
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this.$emit();
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}
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},
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end(e) {
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doc.off(pointerMove, this.move);
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doc.off(pointerUp, this.end);
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win.off('scroll', this.scroll);
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if (!this.drag) {
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if (e.type !== 'mouseup' && isWithin(e.target, 'a[href]')) {
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location.href = $(e.target).closest('a[href]').attr('href');
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}
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return;
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}
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preventClick();
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var sortable = getSortable(this.placeholder[0]);
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if (this === sortable) {
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if (this.origin.index !== this.placeholder.index()) {
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this.$el.trigger('change', [this, this.placeholder, 'moved']);
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}
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} else {
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sortable.$el.trigger('change', [sortable, this.placeholder, 'added']);
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this.$el.trigger('change', [this, this.placeholder, 'removed']);
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}
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this.$el.trigger('stop', [this]);
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this.drag.remove();
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this.drag = null;
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this.touched.forEach(sortable => sortable.$el.children().removeClass(`${sortable.clsPlaceholder} ${sortable.clsItem}`));
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doc.removeClass(this.clsDragState);
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},
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insert(element, target) {
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this.$el.children().addClass(this.clsItem);
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var insert = () => {
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if (target.length) {
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if (!this.$el.has(element).length || element.prevAll().filter(target).length) {
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element.insertBefore(target);
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} else {
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element.insertAfter(target);
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}
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} else {
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this.$el.append(element);
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}
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};
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if (this.animation) {
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this.animate(insert);
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} else {
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insert();
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}
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},
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remove(element) {
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if (!this.$el.has(element).length) {
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return;
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}
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if (this.animation) {
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this.animate(() => element.detach());
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} else {
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element.detach();
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}
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},
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animate(action) {
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var props = [],
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children = this.$el.children().toArray().map(el => {
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el = $(el);
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props.push(extend({
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position: 'absolute',
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pointerEvents: 'none',
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width: el.outerWidth(),
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height: el.outerHeight()
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}, el.position()));
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return el;
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}),
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reset = {position: '', width: '', height: '', pointerEvents: '', top: '', left: ''};
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action();
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children.forEach(el => el.stop());
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this.$el.children().css(reset);
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this.$updateSync('update', true);
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this.$el.css('min-height', this.$el.height());
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var positions = children.map(el => el.position());
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promise.all(children.map((el, i) => el.css(props[i]).animate(positions[i], this.animation).promise()))
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.then(() => {
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this.$el.css('min-height', '').children().css(reset);
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this.$updateSync('update', true);
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});
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}
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}
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});
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function getSortable(element) {
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return UIkit.getComponent(element, 'sortable') || element.parentNode && getSortable(element.parentNode);
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}
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function preventClick() {
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var timer = setTimeout(() => doc.trigger('click'), 0),
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listener = e => {
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e.preventDefault();
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e.stopPropagation();
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clearTimeout(timer);
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off(doc, 'click', listener, true);
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};
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on(doc, 'click', listener, true);
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}
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}
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if (!BUNDLED && typeof window !== 'undefined' && window.UIkit) {
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window.UIkit.use(plugin);
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}
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export default plugin;
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