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import Vue from "vue";
import { forEach, indexOf } from "lodash";
import BaseToggle from "./BaseToggle.vue";
/**
* @details Radio buttons act like a group
* but no event is emitted when unchecked, keep track of radio buttons
* @type {{ [name: string]: Instance[] }}
*/
const radioMap = {};
/**
* @param {string} name
* @param {any} elt
*/
function radioMapAdd(name, elt) {
Iif (!name) { return; }
let radios = radioMap[name];
if (!radios) {
radios = radioMap[name] = [];
}
radios.push(elt);
}
/**
* @param {string} name
* @param {any} elt
*/
function radioMapRemove(name, elt) {
const radios = radioMap[name];
const idx = indexOf(radios, elt);
if (idx >= 0) {
radios.splice(idx, 1);
if (radios.length === 0) {
delete radioMap[name];
}
}
}
/**
* @typedef {V.Instance<typeof component> &
* V.Instance<typeof BaseToggle>} Instance
* @typedef {{ input: HTMLInputElement }} Refs
*/
const component = /** @type {V.Constructor<any, Refs>} */(Vue).extend({
name: "BaseRadio",
extends: BaseToggle,
props: {
name: { type: String, required: true }
},
watch: {
name: {
immediate: true,
handler: function(value, oldValue) {
radioMapRemove(oldValue, this);
radioMapAdd(value, this);
}
},
editValue(value) {
if (value) {
this.setChecked();
}
this.$refs.input.checked = value;
}
},
beforeDestroy() {
radioMapRemove(this.name, this);
},
methods: {
setChecked() {
forEach(radioMap[this.name], (radio) => {
radio.editValue = radio === this;
});
}
}
});
export default component;
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