Convert EditableTextContainer to TS

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/components/views/elements/EditableTextContainer.tsx

@@ -0,0 +1,151 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import { replaceableComponent } from "../../../utils/replaceableComponent";
+import Spinner from "./Spinner";
+import EditableText from "./EditableText";
+
+interface IProps {
+    /* callback to retrieve the initial value. */
+    getInitialValue?: () => Promise<string>;
+
+    /* initial value; used if getInitialValue is not given */
+    initialValue?: string;
+
+    /* placeholder text to use when the value is empty (and not being
+     * edited) */
+    placeholder?: string;
+
+    /* callback to update the value. Called with a single argument: the new
+     * value. */
+    onSubmit?: (value: string) => Promise<{} | void>;
+
+    /* should the input submit when focus is lost? */
+    blurToSubmit?: boolean;
+}
+
+interface IState {
+    busy: boolean;
+    errorString: string;
+    value: string;
+}
+
+/**
+ * A component which wraps an EditableText, with a spinner while updates take
+ * place.
+ *
+ * Parent components should supply an 'onSubmit' callback which returns a
+ * promise; a spinner is shown until the promise resolves.
+ *
+ * The parent can also supply a 'getInitialValue' callback, which works in a
+ * similarly asynchronous way. If this is not provided, the initial value is
+ * taken from the 'initialValue' property.
+ */
+@replaceableComponent("views.elements.EditableTextContainer")
+export default class EditableTextContainer extends React.Component<IProps, IState> {
+    private _unmounted = false;
+    public static defaultProps: Partial<IProps> = {
+        initialValue: "",
+        placeholder: "",
+        blurToSubmit: false,
+        onSubmit: () => { return Promise.resolve(); },
+    };
+
+    constructor(props: IProps) {
+        super(props);
+
+        this.state = {
+            busy: false,
+            errorString: null,
+            value: props.initialValue,
+        };
+    }
+
+    public async componentDidMount(): Promise<void> {
+        // use whatever was given in the initialValue property.
+        if (this.props.getInitialValue === undefined) return;
+
+        this.setState({ busy: true });
+        try {
+            const initialValue = await this.props.getInitialValue();
+            if (this._unmounted) return;
+            this.setState({
+                busy: false,
+                value: initialValue,
+            });
+        } catch (error) {
+            if (this._unmounted) return;
+            this.setState({
+                errorString: error.toString(),
+                busy: false,
+            });
+        }
+    }
+
+    public componentWillUnmount(): void {
+        this._unmounted = true;
+    }
+
+    private onValueChanged = (value: string, shouldSubmit: boolean): void => {
+        if (!shouldSubmit) {
+            return;
+        }
+
+        this.setState({
+            busy: true,
+            errorString: null,
+        });
+
+        this.props.onSubmit(value).then(
+            () => {
+                if (this._unmounted) { return; }
+                this.setState({
+                    busy: false,
+                    value: value,
+                });
+            },
+            (error) => {
+                if (this._unmounted) { return; }
+                this.setState({
+                    errorString: error.toString(),
+                    busy: false,
+                });
+            },
+        );
+    };
+
+    public render(): JSX.Element {
+        if (this.state.busy) {
+            return (
+                <Spinner />
+            );
+        } else if (this.state.errorString) {
+            return (
+                <div className="error">{ this.state.errorString }</div>
+            );
+        } else {
+            return (
+                <EditableText initialValue={this.state.value}
+                    placeholder={this.props.placeholder}
+                    onValueChanged={this.onValueChanged}
+                    blurToSubmit={this.props.blurToSubmit}
+                />
+            );
+        }
+    }
+}
+