1 files changed, 71 insertions, 0 deletions
diff --git a/packages/anastasis-webui/src/components/FlieButton.tsx b/packages/anastasis-webui/src/components/FlieButton.tsx
new file mode 100644
index 000000000..1d19ae630
--- /dev/null
+++ b/packages/anastasis-webui/src/components/FlieButton.tsx
@@ -0,0 +1,71 @@
+/*
+ This file is part of GNU Anastasis
+ (C) 2021-2022 Anastasis SARL
+
+ GNU Anastasis is free software; you can redistribute it and/or modify it under the
+ terms of the GNU Affero General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Anastasis 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License along with
+ GNU Anastasis; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+import { h, VNode } from "preact";
+import { useRef, useState } from "preact/hooks";
+
+const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024;
+
+export interface FileTypeContent {
+  content: string;
+  type: string;
+  name: string;
+}
+
+interface Props {
+  label: string;
+  onChange: (v: FileTypeContent | undefined) => void;
+}
+export function FileButton(props: Props): VNode {
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [sizeError, setSizeError] = useState(false);
+  return (
+    <div>
+      <button class="button" onClick={(e) => fileInputRef.current?.click()}>
+        <span>{props.label}</span>
+      </button>
+      <input
+        ref={fileInputRef}
+        style={{ display: "none" }}
+        type="file"
+        onChange={(e) => {
+          const f: FileList | null = e.currentTarget.files;
+          if (!f || f.length != 1) {
+            return props.onChange(undefined);
+          }
+          if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
+            setSizeError(true);
+            return props.onChange(undefined);
+          }
+          setSizeError(false);
+          return f[0].arrayBuffer().then((b) => {
+            const content = new Uint8Array(b).reduce(
+              (data, byte) => data + String.fromCharCode(byte),
+              "",
+            );
+            return props.onChange({
+              content,
+              name: f[0].name,
+              type: f[0].type,
+            });
+          });
+        }}
+      />
+      {sizeError && (
+        <p class="help is-danger">File should be smaller than 1 MB</p>
+      )}
+    </div>
+  );
+}