48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
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async function downloadFilesWithCallback(processFileCallback) {
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const fileInput = document.querySelector('input[type="file"]');
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const files = fileInput.files;
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const zipThreshold = 4;
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const zipFiles = files.length > zipThreshold;
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let jszip = null;
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if (zipFiles) {
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jszip = new JSZip();
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}
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const promises = Array.from(files).map(async file => {
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const { processedData, fileName } = await processFileCallback(file);
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if (zipFiles) {
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jszip.file(fileName, processedData);
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} else {
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const url = URL.createObjectURL(processedData);
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const downloadOption = localStorage.getItem('downloadOption');
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if (downloadOption === 'sameWindow') {
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window.location.href = url;
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} else if (downloadOption === 'newWindow') {
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window.open(url, '_blank');
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} else {
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const downloadLink = document.createElement('a');
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downloadLink.href = url;
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downloadLink.download = fileName;
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downloadLink.click();
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}
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}
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});
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await Promise.all(promises);
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if (zipFiles) {
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const content = await jszip.generateAsync({ type: "blob" });
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const url = URL.createObjectURL(content);
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const a = document.createElement('a');
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a.href = url;
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a.download = "files.zip";
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document.body.appendChild(a);
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a.click();
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a.remove();
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}
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}
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