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/* global Blob File */
/*
* Module requirements.
*/
var isArray = require('isarray');
var toString = Object.prototype.toString;
var withNativeBlob = typeof global.Blob === 'function' || toString.call(global.Blob) === '[object BlobConstructor]';
var withNativeFile = typeof global.File === 'function' || toString.call(global.File) === '[object FileConstructor]';
/**
* Module exports.
*/
module.exports = hasBinary;
/**
* Checks for binary data.
*
* Supports Buffer, ArrayBuffer, Blob and File.
*
* @param {Object} anything
* @api public
*/
function hasBinary (obj) {
if (!obj || typeof obj !== 'object') {
return false;
}
if (isArray(obj)) {
for (var i = 0, l = obj.length; i < l; i++) {
if (hasBinary(obj[i])) {
return true;
}
}
return false;
}
if ((typeof global.Buffer === 'function' && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
(typeof global.ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
(withNativeBlob && obj instanceof Blob) ||
(withNativeFile && obj instanceof File)
) {
return true;
}
// see: https://github.com/Automattic/has-binary/pull/4
if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
return hasBinary(obj.toJSON(), true);
}
for (var key in obj) {
if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
return true;
}
}
return false;
}
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