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Diffstat (limited to 'packages/merchant-backoffice-ui/src/components/form/InputImage.tsx')
-rw-r--r-- | packages/merchant-backoffice-ui/src/components/form/InputImage.tsx | 95 |
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> +} + |