salix/front/core/components/radio/index.js

94 lines
2.3 KiB
JavaScript

import ngModule from '../../module';
import Component from '../../lib/component';
import './style.scss';
/**
* Basic element for user input. You can use this to supply a way for the user
* to pick an option from multiple choices.
*
* @property {String} label Label to display along the component
* @property {any} field The value with which the element is linked
* @property {Boolean} checked Whether the radio is checked
* @property {String} val The actual value of the option
* @property {Boolean} disabled Put component in disabled mode
*/
export default class Controller extends Component {
constructor($element, $, $attrs) {
super($element, $);
this.hasInfo = Boolean($attrs.info);
this.info = $attrs.info || null;
let element = this.element;
element.addEventListener('click', e => this.onClick(e));
element.addEventListener('keydown', e => this.onKeydown(e));
element.tabIndex = 0;
}
set field(value) {
this._field = value;
this.element.classList.toggle('checked',
Boolean(value) && value == this.val);
}
get field() {
return this._field;
}
set val(value) {
this._val = value;
this.field = this.field;
}
get val() {
return this._val;
}
set checked(value) {
this.field = value ? this.val : null;
this.$.$applyAsync();
}
get checked() {
return this.field == this.val;
}
set disabled(value) {
this.element.tabIndex = !value ? 0 : -1;
this.element.classList.toggle('disabled', Boolean(value));
this._disabled = value;
}
get disabled() {
return this._disabled;
}
onClick(event) {
if (this.disabled) return;
event.preventDefault();
this.field = this.val;
this.$.$applyAsync();
this.element.dispatchEvent(new Event('change'));
}
onKeydown(event) {
if (event.code == 'Space')
this.onClick(event);
}
}
Controller.$inject = ['$element', '$scope', '$attrs'];
ngModule.component('vnRadio', {
template: require('./index.html'),
controller: Controller,
bindings: {
label: '@?',
field: '=?',
checked: '<?',
val: '@?',
disabled: '<?'
}
});