30 lines
1.5 KiB
TypeScript
30 lines
1.5 KiB
TypeScript
export type MIMEType = string;
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export const APPLICATION_OCTET_STREAM = 'application/octet-stream' as MIMEType;
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export const APPLICATION_JSON = 'application/json' as MIMEType;
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export const AUDIO_AAC = 'audio/aac' as MIMEType;
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export const AUDIO_WEBM = 'audio/webm' as MIMEType;
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export const AUDIO_MP3 = 'audio/mp3' as MIMEType;
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export const AUDIO_OPUS = 'audio/ogg' as MIMEType;
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export const IMAGE_GIF = 'image/gif' as MIMEType;
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export const IMAGE_JPEG = 'image/jpeg' as MIMEType;
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export const IMAGE_BMP = 'image/bmp' as MIMEType;
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export const IMAGE_ICO = 'image/x-icon' as MIMEType;
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export const IMAGE_WEBP = 'image/webp' as MIMEType;
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export const IMAGE_PNG = 'image/png' as MIMEType;
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export const IMAGE_TIFF = 'image/tiff' as MIMEType;
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export const IMAGE_UNKNOWN = 'image/unknown' as MIMEType;
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export const VIDEO_MP4 = 'video/mp4' as MIMEType;
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export const VIDEO_QUICKTIME = 'video/quicktime' as MIMEType;
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export const ODT = 'application/vnd.oasis.opendocument.spreadsheet' as MIMEType;
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export const isJPEG = (value: MIMEType): boolean => value === 'image/jpeg';
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export const isImage = (value: MIMEType): boolean =>
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value?.length > 0 && value.startsWith('image/');
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export const isVideo = (value: MIMEType): boolean =>
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value?.length > 0 && value.startsWith('video/');
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// As of 2020-04-16 aif files do not play in Electron nor Chrome. We should only
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// recognize them as file attachments.
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export const isAudio = (value: MIMEType): boolean =>
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value?.length > 0 && value.startsWith('audio/') && !value.endsWith('aiff');
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