| 1 | import DropdownIcon from '../assets/icons/dropdown.svg';
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| 2 |
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| 3 |
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| 4 | class Picker {
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| 5 | constructor(select) {
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| 6 | this.select = select;
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| 7 | this.container = document.createElement('span');
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| 8 | this.buildPicker();
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| 9 | this.select.style.display = 'none';
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| 10 | this.select.parentNode.insertBefore(this.container, this.select);
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| 11 | this.label.addEventListener('mousedown', () => {
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| 12 | this.container.classList.toggle('ql-expanded');
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| 13 | });
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| 14 | this.select.addEventListener('change', this.update.bind(this));
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| 15 | }
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| 16 |
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| 17 | buildItem(option) {
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| 18 | let item = document.createElement('span');
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| 19 | item.classList.add('ql-picker-item');
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| 20 | if (option.hasAttribute('value')) {
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| 21 | item.setAttribute('data-value', option.getAttribute('value'));
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| 22 | }
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| 23 | if (option.textContent) {
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| 24 | item.setAttribute('data-label', option.textContent);
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| 25 | }
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| 26 | item.addEventListener('click', () => {
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| 27 | this.selectItem(item, true);
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| 28 | });
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| 29 | return item;
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| 30 | }
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| 31 |
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| 32 | buildLabel() {
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| 33 | let label = document.createElement('span');
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| 34 | label.classList.add('ql-picker-label');
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| 35 | label.innerHTML = DropdownIcon;
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| 36 | this.container.appendChild(label);
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| 37 | return label;
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| 38 | }
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| 39 |
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| 40 | buildOptions() {
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| 41 | let options = document.createElement('span');
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| 42 | options.classList.add('ql-picker-options');
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| 43 | [].slice.call(this.select.options).forEach((option) => {
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| 44 | let item = this.buildItem(option);
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| 45 | options.appendChild(item);
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| 46 | if (option.selected === true) {
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| 47 | this.selectItem(item);
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| 48 | }
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| 49 | });
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| 50 | this.container.appendChild(options);
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| 51 | }
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| 52 |
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| 53 | buildPicker() {
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| 54 | [].slice.call(this.select.attributes).forEach((item) => {
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| 55 | this.container.setAttribute(item.name, item.value);
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| 56 | });
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| 57 | this.container.classList.add('ql-picker');
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| 58 | this.label = this.buildLabel();
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| 59 | this.buildOptions();
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| 60 | }
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| 61 |
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| 62 | close() {
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| 63 | this.container.classList.remove('ql-expanded');
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| 64 | }
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| 65 |
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| 66 | selectItem(item, trigger = false) {
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| 67 | let selected = this.container.querySelector('.ql-selected');
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| 68 | if (item === selected) return;
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| 69 | if (selected != null) {
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| 70 | selected.classList.remove('ql-selected');
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| 71 | }
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| 72 | if (item == null) return;
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| 73 | item.classList.add('ql-selected');
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| 74 | this.select.selectedIndex = [].indexOf.call(item.parentNode.children, item);
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| 75 | if (item.hasAttribute('data-value')) {
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| 76 | this.label.setAttribute('data-value', item.getAttribute('data-value'));
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| 77 | } else {
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| 78 | this.label.removeAttribute('data-value');
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| 79 | }
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| 80 | if (item.hasAttribute('data-label')) {
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| 81 | this.label.setAttribute('data-label', item.getAttribute('data-label'));
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| 82 | } else {
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| 83 | this.label.removeAttribute('data-label');
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| 84 | }
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| 85 | if (trigger) {
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| 86 | if (typeof Event === 'function') {
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| 87 | this.select.dispatchEvent(new Event('change'));
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| 88 | } else if (typeof Event === 'object') {
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| 89 | let event = document.createEvent('Event');
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| 90 | event.initEvent('change', true, true);
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| 91 | this.select.dispatchEvent(event);
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| 92 | }
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| 93 | this.close();
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| 94 | }
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| 95 | }
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| 96 |
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| 97 | update() {
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| 98 | let option;
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| 99 | if (this.select.selectedIndex > -1) {
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| 100 | let item = this.container.querySelector('.ql-picker-options').children[this.select.selectedIndex];
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| 101 | option = this.select.options[this.select.selectedIndex];
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| 102 | this.selectItem(item);
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| 103 | } else {
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| 104 | this.selectItem(null);
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| 105 | }
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| 106 | let isActive = option != null && option !== this.select.querySelector('option[selected]');
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| 107 | this.label.classList.toggle('ql-active', isActive);
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| 108 | }
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| 109 | }
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| 110 |
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| 111 |
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| 112 | export default Picker;
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