150 lines
4.2 KiB
TypeScript
150 lines
4.2 KiB
TypeScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from 'react';
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import Spinner from "./Spinner";
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import EditableText from "./EditableText";
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interface IProps {
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/* callback to retrieve the initial value. */
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getInitialValue?: () => Promise<string>;
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/* initial value; used if getInitialValue is not given */
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initialValue?: string;
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/* placeholder text to use when the value is empty (and not being
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* edited) */
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placeholder?: string;
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/* callback to update the value. Called with a single argument: the new
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* value. */
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onSubmit?: (value: string) => Promise<{} | void>;
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/* should the input submit when focus is lost? */
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blurToSubmit?: boolean;
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}
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interface IState {
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busy: boolean;
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errorString: string;
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value: string;
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}
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/**
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* A component which wraps an EditableText, with a spinner while updates take
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* place.
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*
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* Parent components should supply an 'onSubmit' callback which returns a
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* promise; a spinner is shown until the promise resolves.
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*
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* The parent can also supply a 'getInitialValue' callback, which works in a
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* similarly asynchronous way. If this is not provided, the initial value is
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* taken from the 'initialValue' property.
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*/
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export default class EditableTextContainer extends React.Component<IProps, IState> {
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private unmounted = false;
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public static defaultProps: Partial<IProps> = {
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initialValue: "",
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placeholder: "",
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blurToSubmit: false,
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onSubmit: () => { return Promise.resolve(); },
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};
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constructor(props: IProps) {
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super(props);
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this.state = {
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busy: false,
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errorString: null,
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value: props.initialValue,
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};
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}
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public async componentDidMount(): Promise<void> {
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// use whatever was given in the initialValue property.
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if (this.props.getInitialValue === undefined) return;
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this.setState({ busy: true });
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try {
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const initialValue = await this.props.getInitialValue();
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if (this.unmounted) return;
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this.setState({
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busy: false,
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value: initialValue,
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});
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} catch (error) {
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if (this.unmounted) return;
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this.setState({
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errorString: error.toString(),
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busy: false,
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});
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}
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}
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public componentWillUnmount(): void {
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this.unmounted = true;
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}
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private onValueChanged = (value: string, shouldSubmit: boolean): void => {
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if (!shouldSubmit) {
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return;
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}
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this.setState({
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busy: true,
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errorString: null,
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});
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this.props.onSubmit(value).then(
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() => {
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if (this.unmounted) { return; }
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this.setState({
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busy: false,
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value: value,
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});
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},
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(error) => {
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if (this.unmounted) { return; }
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this.setState({
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errorString: error.toString(),
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busy: false,
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});
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},
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);
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};
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public render(): JSX.Element {
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if (this.state.busy) {
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return (
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<Spinner />
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);
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} else if (this.state.errorString) {
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return (
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<div className="error">{ this.state.errorString }</div>
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);
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} else {
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return (
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<EditableText initialValue={this.state.value}
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placeholder={this.props.placeholder}
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onValueChanged={this.onValueChanged}
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blurToSubmit={this.props.blurToSubmit}
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/>
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);
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}
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}
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}
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