128 lines
3.0 KiB
React
128 lines
3.0 KiB
React
import { h, Component } from 'preact';
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import api from 'common/api';
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export default class Input extends Component {
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constructor(props) {
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super(props);
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this.state = {
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preview: null,
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};
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this.autoResize = this.autoResize.bind(this);
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this.send = this.send.bind(this);
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this.getPreview = this.getPreview.bind(this);
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this.onKeyDown = this.onKeyDown.bind(this);
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}
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componentDidMount() {
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if (this.props.autoFocus) {
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this.fieldNode.focus();
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}
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this.fieldNode.value = '';
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}
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onKeyDown(e) {
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// send on cmd+enter / ctrl+enter
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if (e.keyCode === 13 && (e.metaKey || e.ctrlKey)) {
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this.send();
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}
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// cancel on esc
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if (e.keyCode === 27 && this.props.onCancel) {
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this.props.onCancel();
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}
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}
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autoResize() {
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this.fieldNode.style.height = '';
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this.setState({
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height: this.fieldNode.scrollHeight,
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preview: null,
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});
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}
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send(e) {
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const text = this.fieldNode.value;
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const pid = this.props.pid;
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if (e) e.preventDefault();
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if (!text || !text.trim()) return;
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this.setState({ isFieldDisabled: true });
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api.send({ text, ...(pid ? { pid } : {}) })
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.then(({ id }) => {
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// TODO: maybe we should run onsubmit before send; like in optimistic ui
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if (this.props.onSubmit) {
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this.props.onSubmit({ text, id, pid });
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}
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this.fieldNode.value = '';
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this.setState({ height: null, preview: null });
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})
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.catch(() => {
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// TODO: do smth?
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})
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.finally(() => this.setState({ isFieldDisabled: false }));
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}
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getPreview() {
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const text = this.fieldNode.value;
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if (!text || !text.trim()) return;
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api.getPreview({ text })
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.then(preview => this.setState({ preview }))
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.catch(() => {
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// TODO: do smth?
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});
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}
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render(props, { height, isFieldDisabled, preview }) {
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return (
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<form className={b('input', props)} onSubmit={this.send}>
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<textarea
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className="input__field"
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placeholder="Your comment here"
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onInput={this.autoResize}
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onKeyDown={this.onKeyDown}
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style={{ height }}
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ref={r => (this.fieldNode = r)}
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required
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disabled={isFieldDisabled}
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>
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{props.children}
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</textarea>
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<div className="input__buttons">
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<button
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className={b('input__button', {}, { type: 'preview' })}
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type="button"
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onClick={this.getPreview}
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>Preview</button>
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<button
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className={b('input__button', {}, { type: 'send' })}
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type="submit"
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>Send</button>
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</div>
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{
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// TODO: it can be more elegant;
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// for example it can render full comment component here (or above textarea on mobile)
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!!preview && (
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<div
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className={b('input__preview', { mix: 'raw-content' })}
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dangerouslySetInnerHTML={{ __html: preview }}
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/>
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)
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}
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</form>
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);
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}
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}
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