23 lines
770 B
JavaScript
23 lines
770 B
JavaScript
// @flow
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export default function getDataTransferFiles(event: SyntheticEvent<*>): File[] {
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let dataTransferItemsList = [];
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// $FlowFixMe
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if (event.dataTransfer) {
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const dt = event.dataTransfer;
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if (dt.files && dt.files.length) {
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dataTransferItemsList = dt.files;
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} else if (dt.items && dt.items.length) {
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// During the drag even the dataTransfer.files is null
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// but Chrome implements some drag store, which is accesible via dataTransfer.items
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dataTransferItemsList = dt.items;
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}
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// $FlowFixMe
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} else if (event.target && event.target.files) {
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dataTransferItemsList = event.target.files;
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}
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// Convert from DataTransferItemsList to the native Array
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return Array.prototype.slice.call(dataTransferItemsList);
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}
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