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feat: make file handling more robust (#5057)

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David Luzar 2022-05-09 15:53:04 +02:00 • committed by GitHub
parent 0d70690ec8
commit d2e687ed0a
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11 changed files with 328 additions and 152 deletions
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18
src/data/image.ts
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@ -3,28 +3,12 @@ import tEXt from "png-chunk-text";
import encodePng from "png-chunks-encode";
import { stringToBase64, encode, decode, base64ToString } from "./encode";
import { EXPORT_DATA_TYPES, MIME_TYPES } from "../constants";
import { blobToArrayBuffer } from "./blob";
// -----------------------------------------------------------------------------
// PNG
// -----------------------------------------------------------------------------
const blobToArrayBuffer = (blob: Blob): Promise<ArrayBuffer> => {
if ("arrayBuffer" in blob) {
return blob.arrayBuffer();
}
// Safari
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = (event) => {
if (!event.target?.result) {
return reject(new Error("couldn't convert blob to ArrayBuffer"));
}
resolve(event.target.result as ArrayBuffer);
};
reader.readAsArrayBuffer(blob);
});
};
export const getTEXtChunk = async (
blob: Blob,
): Promise<{ keyword: string; text: string } | null> => {