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/* eslint-disable */
import utils from './utils';
import { SELECTED_CLASS, IGNORE_CLASS } from './constants';
var DropDown = function(list) {
this.currentIndex = 0;
this.hidden = true;
this.list = typeof list === 'string' ? document.querySelector(list) : list;
this.items = [];
this.eventWrapper = {};
this.getItems();
this.initTemplateString();
this.addEvents();
this.initialState = list.innerHTML;
};
Object.assign(DropDown.prototype, {
getItems: function() {
this.items = [].slice.call(this.list.querySelectorAll('li'));
return this.items;
},
initTemplateString: function() {
var items = this.items || this.getItems();
var templateString = '';
if (items.length > 0) templateString = items[items.length - 1].outerHTML;
this.templateString = templateString;
return this.templateString;
},
clickEvent: function(e) {
if (e.target.tagName === 'UL') return;
if (e.target.classList.contains(IGNORE_CLASS)) return;
var selected = utils.closest(e.target, 'LI');
if (!selected) return;
this.addSelectedClass(selected);
e.preventDefault();
this.hide();
var listEvent = new CustomEvent('click.dl', {
detail: {
list: this,
selected: selected,
data: e.target.dataset,
},
});
this.list.dispatchEvent(listEvent);
},
addSelectedClass: function (selected) {
this.removeSelectedClasses();
selected.classList.add(SELECTED_CLASS);
},
removeSelectedClasses: function () {
const items = this.items || this.getItems();
items.forEach(item => item.classList.remove(SELECTED_CLASS));
},
addEvents: function() {
this.eventWrapper.clickEvent = this.clickEvent.bind(this)
this.list.addEventListener('click', this.eventWrapper.clickEvent);
},
toggle: function() {
this.hidden ? this.show() : this.hide();
},
setData: function(data) {
this.data = data;
this.render(data);
},
addData: function(data) {
this.data = (this.data || []).concat(data);
this.render(this.data);
},
render: function(data) {
const children = data ? data.map(this.renderChildren.bind(this)) : [];
const renderableList = this.list.querySelector('ul[data-dynamic]') || this.list;
renderableList.innerHTML = children.join('');
},
renderChildren: function(data) {
var html = utils.t(this.templateString, data);
var template = document.createElement('div');
template.innerHTML = html;
this.setImagesSrc(template);
template.firstChild.style.display = data.droplab_hidden ? 'none' : 'block';
return template.firstChild.outerHTML;
},
setImagesSrc: function(template) {
const images = [].slice.call(template.querySelectorAll('img[data-src]'));
images.forEach((image) => {
image.src = image.getAttribute('data-src');
image.removeAttribute('data-src');
});
},
show: function() {
if (!this.hidden) return;
this.list.style.display = 'block';
this.currentIndex = 0;
this.hidden = false;
},
hide: function() {
if (this.hidden) return;
this.list.style.display = 'none';
this.currentIndex = 0;
this.hidden = true;
},
toggle: function () {
this.hidden ? this.show() : this.hide();
},
destroy: function() {
this.hide();
this.list.removeEventListener('click', this.eventWrapper.clickEvent);
}
});
export default DropDown;
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