try web share api

app/ui/shareDialog.js

@@ -0,0 +1,61 @@
+const html = require('choo/html');
+
+/* Possible strings for l10n
+shareLinkDescription = Share the link to your file:
+shareLinkButton = Share link
+shareMessage = Download { $name } with { -send-brand }: simple, safe file sharing
+ */
+
+module.exports = function(name, url) {
+  return function(state, emit, close) {
+    return html`
+      <send-share-dialog
+        class="flex flex-col items-center text-center p-4 max-w-sm m-auto"
+      >
+        <h1 class="font-bold my-4">
+          ${state.translate('notifyUploadEncryptDone')}
+        </h1>
+        <p class="font-normal leading-normal text-grey-darkest word-break-all">
+          Share the link to your file:<br />
+          ${name}
+        </p>
+        <input
+          type="text"
+          id="share-url"
+          class="w-full my-4 border rounded-lg leading-loose h-12 px-2 py-1"
+          value="${url}"
+          readonly="true"
+        />
+        <button
+          class="btn rounded-lg w-full flex-no-shrink focus:outline"
+          onclick="${share}"
+          title="Share link"
+        >
+          Share link
+        </button>
+        <button
+          class="text-blue-dark hover:text-blue-darker focus:text-blue-darker my-4 font-medium cursor-pointer focus:outline"
+          onclick="${close}"
+          title="${state.translate('okButton')}"
+        >
+          ${state.translate('okButton')}
+        </button>
+      </send-share-dialog>
+    `;
+
+    async function share(event) {
+      event.stopPropagation();
+      try {
+        await navigator.share({
+          title: state.translate('-send-brand'),
+          text: `Download ${name} with Firefox Send: simple, safe file sharing`,
+          //state.translate('shareMessage', { name }),
+          url
+        });
+      } catch (e) {
+        console.error(e);
+      }
+      setTimeout(close, 1000);
+    }
+  };
+};