1 files changed, 105 insertions, 0 deletions
diff --git a/packages/anastasis-webui/src/components/fields/FileInput.tsx b/packages/anastasis-webui/src/components/fields/FileInput.tsx
new file mode 100644
index 000000000..f20b07c7a
--- /dev/null
+++ b/packages/anastasis-webui/src/components/fields/FileInput.tsx
@@ -0,0 +1,105 @@
+/*
+ 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/>
+ */
+
+/**
+ *
+ * @author Sebastian Javier Marchano (sebasjm)
+ */
+import { h, VNode } from "preact";
+import { useLayoutEffect, useRef, useState } from "preact/hooks";
+
+const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024;
+
+export interface FileTypeContent {
+  content: string;
+  type: string;
+  name: string;
+}
+
+export interface FileInputProps {
+  label: string;
+  grabFocus?: boolean;
+  disabled?: boolean;
+  error?: string;
+  placeholder?: string;
+  tooltip?: string;
+  onChange: (v: FileTypeContent | undefined) => void;
+}
+
+export function FileInput(props: FileInputProps): VNode {
+  const inputRef = useRef<HTMLInputElement>(null);
+  useLayoutEffect(() => {
+    if (props.grabFocus) {
+      inputRef.current?.focus();
+    }
+  }, [props.grabFocus]);
+
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [sizeError, setSizeError] = useState(false);
+  return (
+    <div class="field">
+      <label class="label">
+        <a class="button" onClick={(e) => fileInputRef.current?.click()}>
+          <div class="icon is-small ">
+            <i class="mdi mdi-folder" />
+          </div>
+          <span>{props.label}</span>
+        </a>
+        {props.tooltip && (
+          <span class="icon has-tooltip-right" data-tooltip={props.tooltip}>
+            <i class="mdi mdi-information" />
+          </span>
+        )}
+      </label>
+      <div class="control">
+        <input
+          ref={fileInputRef}
+          style={{ display: "none" }}
+          type="file"
+          // name={String(name)}
+          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 b64 = btoa(
+                new Uint8Array(b).reduce(
+                  (data, byte) => data + String.fromCharCode(byte),
+                  "",
+                ),
+              );
+              return props.onChange({
+                content: `data:${f[0].type};base64,${b64}`,
+                name: f[0].name,
+                type: f[0].type,
+              });
+            });
+          }}
+        />
+        {props.error && <p class="help is-danger">{props.error}</p>}
+        {sizeError && (
+          <p class="help is-danger">File should be smaller than 1 MB</p>
+        )}
+      </div>
+    </div>
+  );
+}