From 9bb9d149d2734e724aa1b53dbbcbc71c9f79b42e Mon Sep 17 00:00:00 2001
From: Sebastian <sebasjm@gmail.com>
Date: Thu, 11 Aug 2022 12:28:02 -0300
Subject: qr reader

---
 .../src/mui/InputFile.tsx                          | 78 ++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 packages/taler-wallet-webextension/src/mui/InputFile.tsx

(limited to 'packages/taler-wallet-webextension/src/mui/InputFile.tsx')

diff --git a/packages/taler-wallet-webextension/src/mui/InputFile.tsx b/packages/taler-wallet-webextension/src/mui/InputFile.tsx
new file mode 100644
index 000000000..2b67dc99b
--- /dev/null
+++ b/packages/taler-wallet-webextension/src/mui/InputFile.tsx
@@ -0,0 +1,78 @@
+/*
+ This file is part of GNU Taler
+ (C) 2022 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+/**
+ *
+ * @author Sebastian Javier Marchano (sebasjm)
+ */
+import { ComponentChildren, h, VNode } from "preact";
+import { useRef, useState } from "preact/hooks";
+import { Button } from "./Button.js";
+// import { MAX_IMAGE_SIZE as MAX_IMAGE_UPLOAD_SIZE } from "../../utils/constants";
+// import { InputProps, useField } from "./useField";
+
+const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024;
+
+interface Props {
+  children: ComponentChildren;
+  onChange: (v: string) => void;
+}
+
+export function InputFile<T>({ onChange, children }: Props): VNode {
+  const image = useRef<HTMLInputElement>(null);
+
+  const [sizeError, setSizeError] = useState(false);
+
+  return (
+    <div>
+      <p>
+        <Button
+          variant="contained"
+          onClick={async () => image.current?.click()}
+        >
+          {children}
+        </Button>
+        <input
+          ref={image}
+          style={{ display: "none" }}
+          type="file"
+          name={String(name)}
+          onChange={(e) => {
+            const f: FileList | null = e.currentTarget.files;
+            if (!f || f.length != 1) {
+              return;
+            }
+            if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
+              setSizeError(true);
+              return;
+            }
+            setSizeError(false);
+            return f[0].arrayBuffer().then((b) => {
+              const b64 = btoa(
+                new Uint8Array(b).reduce(
+                  (data, byte) => data + String.fromCharCode(byte),
+                  "",
+                ),
+              );
+              return onChange(`data:${f[0].type};base64,${b64}` as any);
+            });
+          }}
+        />
+      </p>
+      {sizeError && <p>Image should be smaller than 1 MB</p>}
+    </div>
+  );
+}
-- 
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