Function copyToClipboard

web/src/js/utils.ts:158–198

(
    textPromise: Promise<string>,
)

 * Never throws unless textPromise is rejected.
 */
export async function copyToClipboard(
    textPromise: Promise<string>,
): Promise<void> {
    // Try the new clipboard APIs first. If that fails, use textarea fallback.
    try {
        await navigator.clipboard.write([
            new ClipboardItem({
                "text/plain": textPromise,
            }),
        ]);
        return;
    } catch (err) {
        console.warn(err);
    }

    const text = await textPromise;

    try {
        await navigator.clipboard.writeText(text);
        return;
    } catch (err) {
        console.warn(err);
    }

    const t = document.createElement("textarea");
    t.value = text;
    t.style.position = "absolute";
    t.style.opacity = "0";
    document.body.appendChild(t);
    try {
        t.focus();
        t.select();
        if (!document.execCommand("copy")) {
            throw "failed to copy";
        }
    } catch {
        alert(text);
    } finally {
        t.remove();
    }
}

export async function copyViewContentDataToClipboard(
    contentViewData: ContentViewData | undefined,