alpine.min.js
5 years ago
deloldp_alpine.js
7 months ago
delp_multi_select.js
7 months ago
delp_script.js
1 month ago
delp_multi_select.js
260 lines
| 1 | /* |
| 2 | * Created by David Adams |
| 3 | * https://codeshack.io/multi-select-dropdown-html-javascript/ |
| 4 | * |
| 5 | * Released under the MIT license |
| 6 | */ |
| 7 | class MultiSelect { |
| 8 | |
| 9 | constructor(element, options = {}) { |
| 10 | let defaults = { |
| 11 | placeholder: 'Select item(s)', |
| 12 | max: null, |
| 13 | search: true, |
| 14 | selectAll: true, |
| 15 | listAll: true, |
| 16 | closeListOnItemSelect: false, |
| 17 | name: '', |
| 18 | width: '', |
| 19 | height: '', |
| 20 | dropdownWidth: '', |
| 21 | dropdownHeight: '', |
| 22 | data: [], |
| 23 | onChange: function() {}, |
| 24 | onSelect: function() {}, |
| 25 | onUnselect: function() {} |
| 26 | }; |
| 27 | this.options = Object.assign(defaults, options); |
| 28 | this.selectElement = typeof element === 'string' ? document.querySelector(element) : element; |
| 29 | for(const prop in this.selectElement.dataset) { |
| 30 | if (this.options[prop] !== undefined) { |
| 31 | this.options[prop] = this.selectElement.dataset[prop]; |
| 32 | } |
| 33 | } |
| 34 | this.name = this.selectElement.getAttribute('name') ? this.selectElement.getAttribute('name') : 'multi-select-' + Math.floor(Math.random() * 1000000); |
| 35 | if (!this.options.data.length) { |
| 36 | let options = this.selectElement.querySelectorAll('option'); |
| 37 | for (let i = 0; i < options.length; i++) { |
| 38 | this.options.data.push({ |
| 39 | value: options[i].value, |
| 40 | text: options[i].innerHTML, |
| 41 | selected: options[i].selected, |
| 42 | html: options[i].getAttribute('data-html') |
| 43 | }); |
| 44 | } |
| 45 | } |
| 46 | this.element = this._template(); |
| 47 | this.selectElement.replaceWith(this.element); |
| 48 | this._updateSelected(); |
| 49 | this._eventHandlers(); |
| 50 | } |
| 51 | |
| 52 | _template() { |
| 53 | let optionsHTML = ''; |
| 54 | for (let i = 0; i < this.data.length; i++) { |
| 55 | optionsHTML += ` |
| 56 | <div class="multi-select-option${this.selectedValues.includes(this.data[i].value) ? ' multi-select-selected' : ''}" data-value="${this.data[i].value}"> |
| 57 | <span class="multi-select-option-radio"></span> |
| 58 | <span class="multi-select-option-text">${this.data[i].html ? this.data[i].html : this.data[i].text}</span> |
| 59 | </div> |
| 60 | `; |
| 61 | } |
| 62 | let selectAllHTML = ''; |
| 63 | if (this.options.selectAll === true || this.options.selectAll === 'true') { |
| 64 | selectAllHTML = `<div class="multi-select-all"> |
| 65 | <span class="multi-select-option-radio"></span> |
| 66 | <span class="multi-select-option-text">Select all</span> |
| 67 | </div>`; |
| 68 | } |
| 69 | let template = ` |
| 70 | <div class="multi-select ${this.name}"${this.selectElement.id ? ' id="' + this.selectElement.id + '"' : ''} style="${this.width ? 'width:' + this.width + ';' : ''}${this.height ? 'height:' + this.height + ';' : ''}"> |
| 71 | ${this.selectedValues.map(value => `<input type="hidden" name="${this.name}[]" value="${value}">`).join('')} |
| 72 | <div class="multi-select-header" style="${this.width ? 'width:' + this.width + ';' : ''}${this.height ? 'height:' + this.height + ';' : ''}"> |
| 73 | <span class="multi-select-header-max">${this.options.max ? this.selectedValues.length + '/' + this.options.max : ''}</span> |
| 74 | <span class="multi-select-header-placeholder">${this.placeholder}</span> |
| 75 | </div> |
| 76 | <div class="multi-select-options" style="${this.options.dropdownWidth ? 'width:' + this.options.dropdownWidth + ';' : ''}${this.options.dropdownHeight ? 'height:' + this.options.dropdownHeight + ';' : ''}"> |
| 77 | ${this.options.search === true || this.options.search === 'true' ? '<input type="text" class="multi-select-search" placeholder="Search...">' : ''} |
| 78 | ${selectAllHTML} |
| 79 | ${optionsHTML} |
| 80 | </div> |
| 81 | </div> |
| 82 | `; |
| 83 | let element = document.createElement('div'); |
| 84 | element.innerHTML = template; |
| 85 | return element; |
| 86 | } |
| 87 | |
| 88 | _eventHandlers() { |
| 89 | let headerElement = this.element.querySelector('.multi-select-header'); |
| 90 | this.element.querySelectorAll('.multi-select-option').forEach(option => { |
| 91 | option.onclick = () => { |
| 92 | let selected = true; |
| 93 | if (!option.classList.contains('multi-select-selected')) { |
| 94 | if (this.options.max && this.selectedValues.length >= this.options.max) { |
| 95 | return; |
| 96 | } |
| 97 | option.classList.add('multi-select-selected'); |
| 98 | if (this.options.listAll === true || this.options.listAll === 'true') { |
| 99 | if (this.element.querySelector('.multi-select-header-option')) { |
| 100 | let opt = Array.from(this.element.querySelectorAll('.multi-select-header-option')).pop(); |
| 101 | opt.insertAdjacentHTML('afterend', `<span class="multi-select-header-option" data-value="${option.dataset.value}">${option.querySelector('.multi-select-option-text').innerHTML}</span>`); |
| 102 | } else { |
| 103 | headerElement.insertAdjacentHTML('afterbegin', `<span class="multi-select-header-option" data-value="${option.dataset.value}">${option.querySelector('.multi-select-option-text').innerHTML}</span>`); |
| 104 | } |
| 105 | } |
| 106 | this.element.querySelector('.multi-select').insertAdjacentHTML('afterbegin', `<input type="hidden" name="${this.name}[]" value="${option.dataset.value}">`); |
| 107 | this.data.filter(data => data.value == option.dataset.value)[0].selected = true; |
| 108 | } else { |
| 109 | option.classList.remove('multi-select-selected'); |
| 110 | this.element.querySelectorAll('.multi-select-header-option').forEach(headerOption => headerOption.dataset.value == option.dataset.value ? headerOption.remove() : ''); |
| 111 | this.element.querySelector(`input[value="${option.dataset.value}"]`).remove(); |
| 112 | this.data.filter(data => data.value == option.dataset.value)[0].selected = false; |
| 113 | selected = false; |
| 114 | } |
| 115 | if (this.options.listAll === false || this.options.listAll === 'false') { |
| 116 | if (this.element.querySelector('.multi-select-header-option')) { |
| 117 | this.element.querySelector('.multi-select-header-option').remove(); |
| 118 | } |
| 119 | headerElement.insertAdjacentHTML('afterbegin', `<span class="multi-select-header-option">${this.selectedValues.length} selected</span>`); |
| 120 | } |
| 121 | if (!this.element.querySelector('.multi-select-header-option')) { |
| 122 | headerElement.insertAdjacentHTML('afterbegin', `<span class="multi-select-header-placeholder">${this.placeholder}</span>`); |
| 123 | } else if (this.element.querySelector('.multi-select-header-placeholder')) { |
| 124 | this.element.querySelector('.multi-select-header-placeholder').remove(); |
| 125 | } |
| 126 | if (this.options.max) { |
| 127 | this.element.querySelector('.multi-select-header-max').innerHTML = this.selectedValues.length + '/' + this.options.max; |
| 128 | } |
| 129 | if (this.options.search === true || this.options.search === 'true') { |
| 130 | this.element.querySelector('.multi-select-search').value = ''; |
| 131 | } |
| 132 | this.element.querySelectorAll('.multi-select-option').forEach(option => option.style.display = 'flex'); |
| 133 | if (this.options.closeListOnItemSelect === true || this.options.closeListOnItemSelect === 'true') { |
| 134 | headerElement.classList.remove('multi-select-header-active'); |
| 135 | } |
| 136 | this.options.onChange(option.dataset.value, option.querySelector('.multi-select-option-text').innerHTML, option); |
| 137 | if (selected) { |
| 138 | this.options.onSelect(option.dataset.value, option.querySelector('.multi-select-option-text').innerHTML, option); |
| 139 | } else { |
| 140 | this.options.onUnselect(option.dataset.value, option.querySelector('.multi-select-option-text').innerHTML, option); |
| 141 | } |
| 142 | }; |
| 143 | }); |
| 144 | headerElement.onclick = () => headerElement.classList.toggle('multi-select-header-active'); |
| 145 | if (this.options.search === true || this.options.search === 'true') { |
| 146 | let search = this.element.querySelector('.multi-select-search'); |
| 147 | search.oninput = () => { |
| 148 | this.element.querySelectorAll('.multi-select-option').forEach(option => { |
| 149 | option.style.display = option.querySelector('.multi-select-option-text').innerHTML.toLowerCase().indexOf(search.value.toLowerCase()) > -1 ? 'flex' : 'none'; |
| 150 | }); |
| 151 | }; |
| 152 | } |
| 153 | if (this.options.selectAll === true || this.options.selectAll === 'true') { |
| 154 | let selectAllButton = this.element.querySelector('.multi-select-all'); |
| 155 | selectAllButton.onclick = () => { |
| 156 | let allSelected = selectAllButton.classList.contains('multi-select-selected'); |
| 157 | this.element.querySelectorAll('.multi-select-option').forEach(option => { |
| 158 | let dataItem = this.data.find(data => data.value == option.dataset.value); |
| 159 | if (dataItem && ((allSelected && dataItem.selected) || (!allSelected && !dataItem.selected))) { |
| 160 | option.click(); |
| 161 | } |
| 162 | }); |
| 163 | selectAllButton.classList.toggle('multi-select-selected'); |
| 164 | }; |
| 165 | } |
| 166 | if (this.selectElement.id && document.querySelector('label[for="' + this.selectElement.id + '"]')) { |
| 167 | document.querySelector('label[for="' + this.selectElement.id + '"]').onclick = () => { |
| 168 | headerElement.classList.toggle('multi-select-header-active'); |
| 169 | }; |
| 170 | } |
| 171 | document.addEventListener('click', event => { |
| 172 | if (!event.target.closest('.' + this.name) && !event.target.closest('label[for="' + this.selectElement.id + '"]')) { |
| 173 | headerElement.classList.remove('multi-select-header-active'); |
| 174 | } |
| 175 | }); |
| 176 | } |
| 177 | |
| 178 | _updateSelected() { |
| 179 | if (this.options.listAll === true || this.options.listAll === 'true') { |
| 180 | this.element.querySelectorAll('.multi-select-option').forEach(option => { |
| 181 | if (option.classList.contains('multi-select-selected')) { |
| 182 | this.element.querySelector('.multi-select-header').insertAdjacentHTML('afterbegin', `<span class="multi-select-header-option" data-value="${option.dataset.value}">${option.querySelector('.multi-select-option-text').innerHTML}</span>`); |
| 183 | } |
| 184 | }); |
| 185 | } else { |
| 186 | if (this.selectedValues.length > 0) { |
| 187 | this.element.querySelector('.multi-select-header').insertAdjacentHTML('afterbegin', `<span class="multi-select-header-option">${this.selectedValues.length} selected</span>`); |
| 188 | } |
| 189 | } |
| 190 | if (this.element.querySelector('.multi-select-header-option')) { |
| 191 | this.element.querySelector('.multi-select-header-placeholder').remove(); |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | get selectedValues() { |
| 196 | return this.data.filter(data => data.selected).map(data => data.value); |
| 197 | } |
| 198 | |
| 199 | get selectedItems() { |
| 200 | return this.data.filter(data => data.selected); |
| 201 | } |
| 202 | |
| 203 | set data(value) { |
| 204 | this.options.data = value; |
| 205 | } |
| 206 | |
| 207 | get data() { |
| 208 | return this.options.data; |
| 209 | } |
| 210 | |
| 211 | set selectElement(value) { |
| 212 | this.options.selectElement = value; |
| 213 | } |
| 214 | |
| 215 | get selectElement() { |
| 216 | return this.options.selectElement; |
| 217 | } |
| 218 | |
| 219 | set element(value) { |
| 220 | this.options.element = value; |
| 221 | } |
| 222 | |
| 223 | get element() { |
| 224 | return this.options.element; |
| 225 | } |
| 226 | |
| 227 | set placeholder(value) { |
| 228 | this.options.placeholder = value; |
| 229 | } |
| 230 | |
| 231 | get placeholder() { |
| 232 | return this.options.placeholder; |
| 233 | } |
| 234 | |
| 235 | set name(value) { |
| 236 | this.options.name = value; |
| 237 | } |
| 238 | |
| 239 | get name() { |
| 240 | return this.options.name; |
| 241 | } |
| 242 | |
| 243 | set width(value) { |
| 244 | this.options.width = value; |
| 245 | } |
| 246 | |
| 247 | get width() { |
| 248 | return this.options.width; |
| 249 | } |
| 250 | |
| 251 | set height(value) { |
| 252 | this.options.height = value; |
| 253 | } |
| 254 | |
| 255 | get height() { |
| 256 | return this.options.height; |
| 257 | } |
| 258 | |
| 259 | } |
| 260 | document.querySelectorAll('[data-multi-select]').forEach(select => new MultiSelect(select)); |