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Diffstat (limited to 'packages/anastasis-webui/src/components/fields/FileInput.tsx')
-rw-r--r-- | packages/anastasis-webui/src/components/fields/FileInput.tsx | 81 |
1 files changed, 81 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..8b144ea43 --- /dev/null +++ b/packages/anastasis-webui/src/components/fields/FileInput.tsx @@ -0,0 +1,81 @@ +/* + 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 { TextInputProps } from "./TextInput"; + +const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024 + +export function FileInput(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"> + <a onClick={() => image.current?.click()}> + {props.label} + </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={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("") + } + if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) { + setSizeError(true) + return onChange("") + } + 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"> + File should be smaller than 1 MB + </p>} + </div> + </div> +} + |