84 lines
2.0 KiB
JavaScript
84 lines
2.0 KiB
JavaScript
// @flow
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import { Component } from 'react';
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import type { Dispatch } from 'redux';
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/**
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* The type of the React {@code Component} props of
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* {@link AbstractEnterVideoLinkPrompt}.
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*/
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export type Props = {
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/**
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* Invoked to update the shared youtube video link.
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*/
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dispatch: Dispatch<any>,
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/**
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* Function to be invoked after typing a valid youtube video .
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*/
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onPostSubmit: ?Function
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};
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/**
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* Implements an abstract class for {@code EnterVideoLinkPrompt}.
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*/
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export default class AbstractEnterVideoLinkPrompt<S: *> extends Component < Props, S > {
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/**
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* Instantiates a new component.
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*
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*
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* @inheritdoc
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*/
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constructor(props: Props) {
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super(props);
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this._onSetVideoLink = this._onSetVideoLink.bind(this);
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}
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_onSetVideoLink: string => boolean;
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/**
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* Validates the entered video link by extractibg the id and dispatches it.
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*
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* It returns a boolean to comply the Dialog behaviour:
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* {@code true} - the dialog should be closed.
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* {@code false} - the dialog should be left open.
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*
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* @param {string} link - The entered video link.
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* @returns {boolean}
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*/
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_onSetVideoLink(link) {
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if (!link || !link.trim()) {
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return false;
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}
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const videoId = getYoutubeLink(link);
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if (videoId) {
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const { onPostSubmit } = this.props;
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onPostSubmit && onPostSubmit(videoId);
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return true;
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}
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return false;
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}
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}
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/**
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* Validates the entered video url.
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*
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* It returns a boolean to reflect whether the url matches the youtube regex.
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*
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* @param {string} url - The entered video link.
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* @returns {boolean}
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*/
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function getYoutubeLink(url) {
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const p = /^(?:https?:\/\/)?(?:www\.)?(?:youtu\.be\/|(?:m\.)?youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((\w|-){11})(?:\S+)?$/;// eslint-disable-line max-len
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const result = url.match(p);
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return result ? result[1] : false;
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}
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