1 files changed, 95 insertions, 0 deletions
diff --git a/packages/merchant-backoffice-ui/src/components/form/InputImage.tsx b/packages/merchant-backoffice-ui/src/components/form/InputImage.tsx
new file mode 100644
index 000000000..6cc9b9dcc
--- /dev/null
+++ b/packages/merchant-backoffice-ui/src/components/form/InputImage.tsx
@@ -0,0 +1,95 @@
+/*
+ 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 { ComponentChildren, h, VNode } from "preact";
+import { useRef, useState } from "preact/hooks";
+import emptyImage from "../../assets/empty.png";
+import { Translate } from "../../i18n";
+import { MAX_IMAGE_SIZE as MAX_IMAGE_UPLOAD_SIZE } from "../../utils/constants";
+import { InputProps, useField } from "./useField";
+
+export interface Props<T> extends InputProps<T> {
+  expand?: boolean;
+  addonAfter?: ComponentChildren;
+  children?: ComponentChildren;
+}
+
+export function InputImage<T>({ name, readonly, placeholder, tooltip, label, help, children, expand }: Props<keyof T>): VNode {
+  const { error, value, onChange } = useField<T>(name);
+
+  const image = useRef<HTMLInputElement>(null)
+
+  const [sizeError, setSizeError] = useState(false)
+
+  return <div class="field is-horizontal">
+    <div class="field-label is-normal">
+      <label class="label">
+        {label}
+        {tooltip && <span class="icon has-tooltip-right" data-tooltip={tooltip}>
+          <i class="mdi mdi-information" />
+        </span>}
+      </label>
+    </div>
+    <div class="field-body is-flex-grow-3">
+      <div class="field">
+        <p class={expand ? "control is-expanded" : "control"}>
+          {value &&
+            <img src={value} style={{ width: 200, height: 200 }} onClick={() => image.current?.click()} />
+          }
+          <input
+            ref={image} style={{ display: 'none' }}
+            type="file" name={String(name)}
+            placeholder={placeholder} readonly={readonly}
+            onChange={e => {
+              const f: FileList | null = e.currentTarget.files
+              if (!f || f.length != 1) {
+                return onChange(undefined!)
+              }
+              if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
+                setSizeError(true)
+                return onChange(undefined!)
+              }
+              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)
+              })
+            }} />
+          {help}
+          {children}
+        </p>
+        {error && <p class="help is-danger">{error}</p>}
+        {sizeError && <p class="help is-danger">
+          <Translate>Image should be smaller than 1 MB</Translate>
+        </p>}
+        {!value &&
+          <button class="button" onClick={() => image.current?.click()} ><Translate>Add</Translate></button>
+        }
+        {value &&
+          <button class="button" onClick={() => onChange(undefined!)} ><Translate>Remove</Translate></button>
+        }
+      </div>
+    </div>
+  </div>
+}
+