diff options
Diffstat (limited to 'packages/anastasis-webui/src/components/FlieButton.tsx')
-rw-r--r-- | packages/anastasis-webui/src/components/FlieButton.tsx | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/packages/anastasis-webui/src/components/FlieButton.tsx b/packages/anastasis-webui/src/components/FlieButton.tsx new file mode 100644 index 000000000..aab0b6170 --- /dev/null +++ b/packages/anastasis-webui/src/components/FlieButton.tsx @@ -0,0 +1,57 @@ +import { h, VNode } from "preact"; +import { useRef, useState } from "preact/hooks"; + +const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024; + +export interface FileTypeContent { + content: string; + type: string; + name: string; +} + +interface Props { + label: string; + onChange: (v: FileTypeContent | undefined) => void; +} +export function FileButton(props: Props): VNode { + const fileInputRef = useRef<HTMLInputElement>(null); + const [sizeError, setSizeError] = useState(false); + return ( + <div> + <button class="button" onClick={(e) => fileInputRef.current?.click()}> + <span>{props.label}</span> + </button> + <input + ref={fileInputRef} + style={{ display: "none" }} + type="file" + onChange={(e) => { + const f: FileList | null = e.currentTarget.files; + if (!f || f.length != 1) { + return props.onChange(undefined); + } + console.log(f); + if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) { + setSizeError(true); + return props.onChange(undefined); + } + setSizeError(false); + return f[0].arrayBuffer().then((b) => { + const content = new Uint8Array(b).reduce( + (data, byte) => data + String.fromCharCode(byte), + "", + ); + return props.onChange({ + content, + name: f[0].name, + type: f[0].type, + }); + }); + }} + /> + {sizeError && ( + <p class="help is-danger">File should be smaller than 1 MB</p> + )} + </div> + ); +} |