35 lines
892 B
TypeScript
35 lines
892 B
TypeScript
/**
|
|
* Image file extensions that we know the browser is unlikely to have native
|
|
* support for.
|
|
*/
|
|
const nonWebImageFileExtensions = [
|
|
"heic",
|
|
"rw2",
|
|
"tiff",
|
|
"arw",
|
|
"cr3",
|
|
"cr2",
|
|
"raf",
|
|
"nef",
|
|
"psd",
|
|
"dng",
|
|
"tif",
|
|
];
|
|
|
|
/**
|
|
* Return `true` if {@link extension} is from amongst a known set of image file
|
|
* extensions that we know that the browser is unlikely to have native support
|
|
* for. If we want to display such files in the browser, we'll need to convert
|
|
* them to some other format first.
|
|
*/
|
|
export const isNonWebImageFileExtension = (extension: string) =>
|
|
nonWebImageFileExtensions.includes(extension.toLowerCase());
|
|
|
|
/**
|
|
* Return `true` if {@link extension} in for an HEIC-like file.
|
|
*/
|
|
export const isHEICExtension = (extension: string) => {
|
|
const ext = extension.toLowerCase();
|
|
return ext == "heic" || ext == "heif";
|
|
};
|