77 lines
2.4 KiB
JavaScript
77 lines
2.4 KiB
JavaScript
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// Polyfill for Navigator.clipboard.writeText
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if (!navigator.clipboard) {
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navigator.clipboard = {
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writeText: text => {
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// A <span> contains the text to copy
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const span = document.createElement('span');
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span.textContent = text;
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span.style.whiteSpace = 'pre'; // Preserve consecutive spaces and newlines
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// Paint the span outside the viewport
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span.style.position = 'absolute';
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span.style.left = '-9999px';
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span.style.top = '-9999px';
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const win = window;
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const selection = win.getSelection();
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win.document.body.appendChild(span);
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const range = win.document.createRange();
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selection.removeAllRanges();
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range.selectNode(span);
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selection.addRange(range);
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let success = false;
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try {
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success = win.document.execCommand('copy');
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} catch (err) {
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return Promise.error();
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}
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selection.removeAllRanges();
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span.remove();
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return Promise.resolve();
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}
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}
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}
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const zipper = (() => {
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let zipWriter;
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return {
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addFile(file, options) {
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if (!zipWriter) {
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zipWriter = new zip.ZipWriter(new zip.BlobWriter("application/zip"), { bufferedWrite: true, level: 0 });
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}
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return zipWriter.add(file.name, new zip.BlobReader(file), options);
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},
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async getBlobURL() {
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if (zipWriter) {
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const blobURL = URL.createObjectURL(await zipWriter.close());
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zipWriter = null;
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return blobURL;
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} else {
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throw new Error("Zip file closed");
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}
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},
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async getZipFile(filename = "archive.zip") {
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if (zipWriter) {
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const file = new File([await zipWriter.close()], filename, {type: "application/zip"});
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zipWriter = null;
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return file;
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} else {
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throw new Error("Zip file closed");
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}
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},
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async getEntries(file, options) {
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return await (new zip.ZipReader(new zip.BlobReader(file))).getEntries(options);
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},
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async getData(entry, options) {
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return await entry.getData(new zip.BlobWriter(), options);
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},
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};
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})();
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