Make room ID copyable (#7600)

src/components/views/elements/CopyableText.tsx

@@ -0,0 +1,63 @@
+/*
+Copyright 2019-2022 The Matrix.org Foundation C.I.C.
+Copyright 2022 Šimon Brandner <simon.bra.ag@gmail.com>
+
+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, { useEffect, useRef } from "react";
+
+import { _t } from "../../../languageHandler";
+import { copyPlaintext } from "../../../utils/strings";
+import { toRightOf, createMenu } from "../../structures/ContextMenu";
+import GenericTextContextMenu from "../context_menus/GenericTextContextMenu";
+import { ButtonEvent } from "./AccessibleButton";
+import AccessibleTooltipButton from "./AccessibleTooltipButton";
+
+interface IProps {
+    children: React.ReactNode;
+    getTextToCopy: () => string;
+}
+
+const CopyableText: React.FC<IProps> = ({ children, getTextToCopy }) => {
+    const closeCopiedTooltip = useRef<() => void>();
+    const divRef = useRef<HTMLDivElement>();
+
+    useEffect(() => () => {
+        if (closeCopiedTooltip.current) closeCopiedTooltip.current();
+    }, [closeCopiedTooltip]);
+
+    const onCopyClickInternal = async (e: ButtonEvent) => {
+        e.preventDefault();
+        const target = e.target as HTMLDivElement; // copy target before we go async and React throws it away
+
+        const successful = await copyPlaintext(getTextToCopy());
+        const buttonRect = target.getBoundingClientRect();
+        const { close } = createMenu(GenericTextContextMenu, {
+            ...toRightOf(buttonRect, 2),
+            message: successful ? _t('Copied!') : _t('Failed to copy'),
+        });
+        closeCopiedTooltip.current = target.onmouseleave = close;
+    };
+
+    return <div className="mx_CopyableText" ref={divRef}>
+        { children }
+        <AccessibleTooltipButton
+            title={_t("Copy")}
+            onClick={onCopyClickInternal}
+            className="mx_CopyableText_copyButton"
+        />
+    </div>;
+};
+
+export default CopyableText;