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import { Position, Toggable } from '../mixin/index';
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import { $, Animation, doc, getDimensions, isWithin, isTouch, MouseTracker, pointerEnter, pointerLeave, query, removeClass } from '../util/index';
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export default function (UIkit) {
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var active;
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doc.on('click', e => {
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var prev;
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while (active && active !== prev && !isWithin(e.target, active.$el) && !(active.toggle && isWithin(e.target, active.toggle.$el))) {
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prev = active;
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active.hide(false);
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}
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});
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UIkit.component('drop', {
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mixins: [Position, Toggable],
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args: 'pos',
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props: {
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mode: 'list',
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toggle: Boolean,
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boundary: 'jQuery',
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boundaryAlign: Boolean,
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delayShow: Number,
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delayHide: Number,
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clsDrop: String
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},
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defaults: {
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mode: ['click', 'hover'],
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toggle: '- :first',
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boundary: window,
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boundaryAlign: false,
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delayShow: 0,
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delayHide: 800,
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clsDrop: false,
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hoverIdle: 200,
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animation: ['uk-animation-fade'],
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cls: 'uk-open'
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},
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init() {
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this.tracker = new MouseTracker();
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this.clsDrop = this.clsDrop || `uk-${this.$options.name}`;
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this.clsPos = this.clsDrop;
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this.$el.addClass(this.clsDrop);
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},
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ready() {
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this.updateAria(this.$el);
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if (this.toggle) {
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this.toggle = UIkit.toggle(query(this.toggle, this.$el), {target: this.$el, mode: this.mode});
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}
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},
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events: [
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{
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name: 'click',
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delegate() {
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return `.${this.clsDrop}-close`;
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},
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handler(e) {
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e.preventDefault();
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this.hide(false);
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}
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},
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{
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name: 'click',
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delegate() {
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return 'a[href^="#"]';
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},
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handler(e) {
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if (e.isDefaultPrevented()) {
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return;
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}
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var id = $(e.target).attr('href');
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if (id.length === 1) {
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e.preventDefault();
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}
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if (id.length === 1 || !isWithin(id, this.$el)) {
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this.hide(false);
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}
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}
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},
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{
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name: 'toggle',
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handler(e, toggle) {
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if (toggle && !this.$el.is(toggle.target)) {
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return;
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}
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e.preventDefault();
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if (this.isToggled()) {
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this.hide(false);
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} else {
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this.show(toggle, false);
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}
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}
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},
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{
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name: pointerEnter,
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filter() {
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return ~this.mode.indexOf('hover');
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},
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handler(e) {
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if (isTouch(e)) {
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return;
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}
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if (active
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&& active !== this
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&& active.toggle
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&& ~active.toggle.mode.indexOf('hover')
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&& !isWithin(e.target, active.$el)
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&& !isWithin(e.target, active.toggle.$el)
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) {
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active.hide(false);
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}
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e.preventDefault();
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this.show(this.toggle);
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}
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},
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{
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name: 'toggleshow',
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handler(e, toggle) {
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if (toggle && !this.$el.is(toggle.target)) {
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return;
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}
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e.preventDefault();
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this.show(toggle || this.toggle);
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}
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},
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{
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name: `togglehide ${pointerLeave}`,
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handler(e, toggle) {
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if (isTouch(e) || toggle && !this.$el.is(toggle.target)) {
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return;
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}
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e.preventDefault();
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if (this.toggle && ~this.toggle.mode.indexOf('hover')) {
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this.hide();
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}
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}
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},
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{
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name: 'beforeshow',
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self: true,
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handler() {
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this.clearTimers();
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}
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},
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{
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name: 'show',
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self: true,
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handler() {
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this.tracker.init();
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this.toggle.$el.addClass(this.cls).attr('aria-expanded', 'true');
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}
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},
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{
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name: 'beforehide',
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self: true,
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handler() {
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this.clearTimers();
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}
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},
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{
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name: 'hide',
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handler({target}) {
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if (!this.$el.is(target)) {
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active = active === null && isWithin(target, this.$el) && this.isToggled() ? this : active;
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return;
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}
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active = this.isActive() ? null : active;
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this.toggle.$el.removeClass(this.cls).attr('aria-expanded', 'false').blur().find('a, button').blur();
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this.tracker.cancel();
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}
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}
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],
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update: {
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write() {
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if (this.isToggled() && !Animation.inProgress(this.$el)) {
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this.position();
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}
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},
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events: ['resize']
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},
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methods: {
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show(toggle, delay = true) {
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var show = () => {
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if (!this.isToggled()) {
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this.position();
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this.toggleElement(this.$el, true);
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}
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},
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tryShow = () => {
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this.toggle = toggle || this.toggle;
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this.clearTimers();
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if (this.isActive()) {
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return;
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} else if (delay && active && active !== this && active.isDelaying) {
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this.showTimer = setTimeout(this.show, 10);
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return;
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} else if (this.isParentOf(active)) {
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if (active.hideTimer) {
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active.hide(false);
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} else {
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return;
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}
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} else if (active && !this.isChildOf(active) && !this.isParentOf(active)) {
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var prev;
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while (active && active !== prev) {
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prev = active;
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active.hide(false);
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}
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}
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if (delay && this.delayShow) {
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this.showTimer = setTimeout(show, this.delayShow);
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} else {
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show();
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}
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active = this;
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};
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if (toggle && this.toggle && !this.toggle.$el.is(toggle.$el)) {
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this.$el.one('hide', tryShow);
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this.hide(false);
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} else {
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tryShow();
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}
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},
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hide(delay = true) {
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var hide = () => this.toggleNow(this.$el, false);
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this.clearTimers();
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this.isDelaying = this.tracker.movesTo(this.$el);
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if (delay && this.isDelaying) {
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this.hideTimer = setTimeout(this.hide, this.hoverIdle);
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} else if (delay && this.delayHide) {
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this.hideTimer = setTimeout(hide, this.delayHide);
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} else {
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hide();
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}
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},
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clearTimers() {
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clearTimeout(this.showTimer);
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clearTimeout(this.hideTimer);
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this.showTimer = null;
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this.hideTimer = null;
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this.isDelaying = false;
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},
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isActive() {
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return active === this;
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},
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isChildOf(drop) {
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return drop && drop !== this && isWithin(this.$el, drop.$el);
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},
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isParentOf(drop) {
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return drop && drop !== this && isWithin(drop.$el, this.$el);
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},
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position() {
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removeClass(this.$el, `${this.clsDrop}-(stack|boundary)`).css({top: '', left: ''});
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this.$el.show().toggleClass(`${this.clsDrop}-boundary`, this.boundaryAlign);
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var boundary = getDimensions(this.boundary), alignTo = this.boundaryAlign ? boundary : getDimensions(this.toggle.$el);
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if (this.align === 'justify') {
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var prop = this.getAxis() === 'y' ? 'width' : 'height';
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this.$el.css(prop, alignTo[prop]);
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} else if (this.$el.outerWidth() > Math.max(boundary.right - alignTo.left, alignTo.right - boundary.left)) {
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this.$el.addClass(`${this.clsDrop}-stack`);
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this.$el.trigger('stack', [this]);
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}
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this.positionAt(this.$el, this.boundaryAlign ? this.boundary : this.toggle.$el, this.boundary);
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this.$el[0].style.display = '';
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}
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}
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});
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UIkit.drop.getActive = () => active;
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}
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