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fix: support copying PNG to clipboard on Safari (#3746)

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David Luzar 2022-04-06 14:05:09 +02:00 • committed by GitHub
parent 77d789ed8e
commit cb6b7559b4
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4 changed files with 53 additions and 8 deletions
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34
src/clipboard.ts
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@ -8,6 +8,7 @@ import { SVG_EXPORT_TAG } from "./scene/export";
import { tryParseSpreadsheet, Spreadsheet, VALID_SPREADSHEET } from "./charts";
import { EXPORT_DATA_TYPES, MIME_TYPES } from "./constants";
import { isInitializedImageElement } from "./element/typeChecks";
import { isPromiseLike } from "./utils";
type ElementsClipboard = {
type: typeof EXPORT_DATA_TYPES.excalidrawClipboard;
@ -166,10 +167,35 @@ export const parseClipboard = async (
}
};
export const copyBlobToClipboardAsPng = async (blob: Blob) => {
await navigator.clipboard.write([
new window.ClipboardItem({ [MIME_TYPES.png]: blob }),
]);
export const copyBlobToClipboardAsPng = async (blob: Blob | Promise<Blob>) => {
let promise;
try {
// in Safari so far we need to construct the ClipboardItem synchronously
// (i.e. in the same tick) otherwise browser will complain for lack of
// user intent. Using a Promise ClipboardItem constructor solves this.
// https://bugs.webkit.org/show_bug.cgi?id=222262
//
// not await so that we can detect whether the thrown error likely relates
// to a lack of support for the Promise ClipboardItem constructor
promise = navigator.clipboard.write([
new window.ClipboardItem({
[MIME_TYPES.png]: blob,
}),
]);
} catch (error: any) {
// if we're using a Promise ClipboardItem, let's try constructing
// with resolution value instead
if (isPromiseLike(blob)) {
await navigator.clipboard.write([
new window.ClipboardItem({
[MIME_TYPES.png]: await blob,
}),
]);
} else {
throw error;
}
}
await promise;
};
export const copyTextToSystemClipboard = async (text: string | null) => {