repo: integrate packages from former merchant-backoffice.git

1 files changed, 93 insertions, 0 deletions

diff --git a/packages/demobank-ui/src/components/fields/ImageInput.tsx b/packages/demobank-ui/src/components/fields/ImageInput.tsx
new file mode 100644
index 000000000..98457af21
--- /dev/null
+++ b/packages/demobank-ui/src/components/fields/ImageInput.tsx
@@ -0,0 +1,93 @@
+/*
+ This file is part of GNU Taler
+ (C) 2021 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 { h, VNode } from 'preact';
+import { useLayoutEffect, useRef, useState } from 'preact/hooks';
+import emptyImage from '../../assets/empty.png';
+import { TextInputProps } from './TextInput';
+
+const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024;
+
+export function ImageInput(props: TextInputProps): VNode {
+  const inputRef = useRef<HTMLInputElement>(null);
+  useLayoutEffect(() => {
+    if (props.grabFocus) 
+      inputRef.current?.focus();
+    
+  }, [props.grabFocus]);
+
+  const value = props.bind[0];
+  // const [dirty, setDirty] = useState(false)
+  const image = useRef<HTMLInputElement>(null);
+  const [sizeError, setSizeError] = useState(false);
+  function onChange(v: string): void {
+    // setDirty(true);
+    props.bind[1](v);
+  }
+  return (
+    <div class="field">
+      <label class="label">
+        {props.label}
+        {props.tooltip && (
+          <span class="icon has-tooltip-right" data-tooltip={props.tooltip}>
+            <i class="mdi mdi-information" />
+          </span>
+        )}
+      </label>
+      <div class="control">
+        <img
+          src={!value ? emptyImage : value}
+          style={{ width: 200, height: 200 }}
+          onClick={() => image.current?.click()}
+        />
+        <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 onChange(emptyImage);
+            
+            if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
+              setSizeError(true);
+              return onChange(emptyImage);
+            }
+            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);
+            });
+          }}
+        />
+        {props.error && <p class="help is-danger">{props.error}</p>}
+        {sizeError && (
+          <p class="help is-danger">Image should be smaller than 1 MB</p>
+        )}
+      </div>
+    </div>
+  );
+}