<template> <div> <span v-if="!available">{{ $ts.waiting }}<MkEllipsis/></span> <div ref="captcha"></div> </div> </template> <script lang="ts"> import { defineComponent, PropType } from 'vue'; type Captcha = { render(container: string | Node, options: { readonly [_ in 'sitekey' | 'theme' | 'type' | 'size' | 'tabindex' | 'callback' | 'expired' | 'expired-callback' | 'error-callback' | 'endpoint']?: unknown; }): string; remove(id: string): void; execute(id: string): void; reset(id: string): void; getResponse(id: string): string; }; type CaptchaProvider = 'hcaptcha' | 'recaptcha'; type CaptchaContainer = { readonly [_ in CaptchaProvider]?: Captcha; }; declare global { interface Window extends CaptchaContainer { } } export default defineComponent({ props: { provider: { type: String as PropType<CaptchaProvider>, required: true, }, sitekey: { type: String, required: true, }, modelValue: { type: String, }, }, data() { return { available: false, }; }, computed: { variable(): string { switch (this.provider) { case 'hcaptcha': return 'hcaptcha'; case 'recaptcha': return 'grecaptcha'; } }, loaded(): boolean { return !!window[this.variable]; }, src(): string { const endpoint = ({ hcaptcha: 'https://hcaptcha.com/1', recaptcha: 'https://www.recaptcha.net/recaptcha', } as Record<CaptchaProvider, string>)[this.provider]; return `${typeof endpoint === 'string' ? endpoint : 'about:invalid'}/api.js?render=explicit`; }, captcha(): Captcha { return window[this.variable] || {} as unknown as Captcha; }, }, created() { if (this.loaded) { this.available = true; } else { (document.getElementById(this.provider) || document.head.appendChild(Object.assign(document.createElement('script'), { async: true, id: this.provider, src: this.src, }))) .addEventListener('load', () => this.available = true); } }, mounted() { if (this.available) { this.requestRender(); } else { this.$watch('available', this.requestRender); } }, beforeUnmount() { this.reset(); }, methods: { reset() { if (this.captcha?.reset) this.captcha.reset(); }, requestRender() { if (this.captcha.render && this.$refs.captcha instanceof Element) { this.captcha.render(this.$refs.captcha, { sitekey: this.sitekey, theme: this.$store.state.darkMode ? 'dark' : 'light', callback: this.callback, 'expired-callback': this.callback, 'error-callback': this.callback, }); } else { setTimeout(this.requestRender.bind(this), 1); } }, callback(response?: string) { this.$emit('update:modelValue', typeof response == 'string' ? response : null); }, }, }); </script>