TagInput - Functional component for tag-like inputs

client/homebrew/editor/metadataEditor/metadataEditor.jsx

@@ -6,7 +6,7 @@ const _     = require('lodash');
 const request = require('../../utils/request-middleware.js');
 const Nav = require('naturalcrit/nav/nav.jsx');
 const Combobox = require('client/components/combobox.jsx');
-const StringArrayEditor = require('../stringArrayEditor/stringArrayEditor.jsx');
+const TagInput = require('../tagInput/tagInput.jsx');
 
 
 const Themes = require('themes/themes.json');
@@ -341,10 +341,11 @@ const MetadataEditor = createClass({
 				{this.renderThumbnail()}
 			</div>
 
-			<StringArrayEditor label='tags' valuePatterns={[/^(?:(?:group|meta|system|type):)?[A-Za-z0-9][A-Za-z0-9 \/.\-]{0,40}$/]}
+			<TagInput label='tags' valuePatterns={[/^(?:(?:group|meta|system|type):)?[A-Za-z0-9][A-Za-z0-9 \/.\-]{0,40}$/]}
 				placeholder='add tag' unique={true}
 				values={this.props.metadata.tags}
-				onChange={(e)=>this.handleFieldChange('tags', e)}/>
+				onChange={(e)=>this.handleFieldChange('tags', e)}
+				/>
 
 			<div className='field systems'>
 				<label>systems</label>
@@ -363,12 +364,13 @@ const MetadataEditor = createClass({
 
 			{this.renderAuthors()}
 
-			<StringArrayEditor label='invited authors' valuePatterns={[/.+/]}
+			<TagInput label='invited authors' valuePatterns={[/.+/]}
 				validators={[(v)=>!this.props.metadata.authors?.includes(v)]}
 				placeholder='invite author' unique={true}
 				values={this.props.metadata.invitedAuthors}
 				notes={['Invited author usernames are case sensitive.', 'After adding an invited author, send them the edit link. There, they can choose to accept or decline the invitation.']}
-				onChange={(e)=>this.handleFieldChange('invitedAuthors', e)}/>
+				onChange={(e)=>this.handleFieldChange('invitedAuthors', e)}
+				/>
 
 			<h2>Privacy</h2>
 

client/homebrew/editor/metadataEditor/metadataEditor.less

@@ -272,7 +272,7 @@
 			&:last-child { border-radius : 0 0.5em 0.5em 0; }
 		}
 
-		.badge {
+		.tag {
 			padding          : 0.3em;
 			margin           : 2px;
 			font-size        : 0.9em;

client/homebrew/editor/tagInput/tagInput.jsx

@@ -0,0 +1,105 @@
+require('./tagInput.less');
+const React = require('react');
+const { useState, useEffect } = React;
+const _     = require('lodash');
+
+const TagInput = ({ unique = true, values = [], ...props }) => {
+	const [tempInputText, setTempInputText] = useState('');
+	const [tagList, setTagList] = useState(values.map((value) => ({ value, editing: false })));
+
+	useEffect(()=>{
+		handleChange(tagList.map((context)=>context.value))
+	}, [tagList])
+
+	const handleChange = (value)=>{
+		props.onChange({
+			target : { value }
+		})
+	};
+
+	const handleInputKeyDown = ({ evt, value, index, options = {} }) => {
+		if (_.includes(['Enter', ','], evt.key)) {
+			evt.preventDefault();
+			submitTag(evt.target.value, value, index);
+			if (options.clear) {
+				setTempInputText('');
+			}
+		}
+	};
+
+	const submitTag = (newValue, originalValue, index) => {
+		setTagList((prevContext) => {
+			// remove existing tag
+			if(newValue === null){
+				return [...prevContext].filter((context, i)=>i !== index);
+			}
+			// add new tag
+			if(originalValue === null){
+				return [...prevContext, { value: newValue, editing: false }]
+			}
+			// update existing tag
+			return prevContext.map((context, i) => {
+				if (i === index) {
+					return { ...context, value: newValue, editing: false };
+				}
+				return context;
+			});
+		});
+	};
+
+	const editTag = (index) => {
+		setTagList((prevContext) => {
+			return prevContext.map((context, i) => {
+				if (i === index) {
+					return { ...context, editing: true };
+				}
+				return { ...context, editing: false };
+			});
+		});
+	};
+
+	const renderReadTag = (context, index) => {
+		return (
+			<li key={index}
+				data-value={context.value}
+				className='tag'
+				onClick={() => editTag(index)}>
+				{context.value}
+				<button onClick={(evt)=>{evt.stopPropagation(); submitTag(null, context.value, index)}}><i className='fa fa-times fa-fw'/></button>
+			</li>
+		);
+	};
+
+	const renderWriteTag = (context, index) => {
+		return (
+			<input type='text'
+				key={index}
+				defaultValue={context.value} 
+				onKeyDown={(evt) => handleInputKeyDown({evt, value: context.value, index: index})} 
+				autoFocus 
+			/>
+		);
+	};
+
+	return (
+		<div className='field'>
+			<label>{props.label}</label>
+			<div className='value'>
+				<ul className='list'>
+					{tagList.map((context, index) => { return context.editing ? renderWriteTag(context, index) : renderReadTag(context, index); })}
+				</ul>
+
+				<input
+					type='text'
+					className='value'
+					placeholder={props.placeholder}
+					value={tempInputText}
+					onChange={(e) => setTempInputText(e.target.value)}
+					onKeyDown={(evt) => handleInputKeyDown({ evt, value: null, options: { clear: true } })}
+				/>
+			</div>
+		</div>
+	);
+};
+
+module.exports = TagInput;