83 lines
2.4 KiB
TypeScript
83 lines
2.4 KiB
TypeScript
export function makeProgressPercent(e: { total: number, loaded: number}): number {
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const { total, loaded } = e;
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const progress = (total !== 0)
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? Math.floor((loaded / total) * 100)
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: 0;
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return progress > 0 ? progress : 0;
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}
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export function bookRequest(req: {
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frontmatter: Frontmatter,
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content: string,
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cover?: File,
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}, callback: {
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start: (upload: { cancel: () => void }) => void,
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progress: (percentage: number) => void,
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error: () => void,
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}) {
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const formData = new FormData();
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const xhr = new XMLHttpRequest();
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xhr.responseType = "blob";
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formData.append("content", req.content);
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formData.append("frontmatter", JSON.stringify(req.frontmatter));
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if ("cover" in req && req.cover) {
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formData.append("file", req.cover);
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}
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xhr.onload = () => {
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const url = window.URL.createObjectURL(xhr.response);
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const a = document.createElement('a');
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a.href = url;
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a.download = `${req.frontmatter.title}.epub`;
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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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xhr.upload.addEventListener('progress', (e) => {
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const progress = makeProgressPercent(e);
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callback.progress(progress);
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}, false);
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xhr.addEventListener('error', (e) => {
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console.error(e);
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callback.error();
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}, false);
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xhr.open("POST", "/api/book");
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xhr.send(formData);
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function cancel() {
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xhr.abort();
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}
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callback.start({ cancel });
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}
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export function uploadDoc(file: File, callback: {
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start: (upload: { cancel: () => void }) => void,
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progress: (percentage: number) => void,
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error: () => void,
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complete: (markdown: string) => void,
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}) {
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const formData = new FormData();
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const xhr = new XMLHttpRequest();
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formData.append("file", file);
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xhr.onload = () => {
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try {
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const { markdown } = JSON.parse(xhr.responseText);
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callback.complete(markdown);
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} catch (e) {
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console.error(e);
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callback.error();
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}
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};
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xhr.upload.addEventListener('progress', (e) => {
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const progress = makeProgressPercent(e);
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callback.progress(progress);
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}, false);
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xhr.addEventListener('error', (e) => {
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console.error(e);
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callback.error();
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}, false);
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xhr.open("POST", "/api/file");
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xhr.send(formData);
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function cancel() {
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xhr.abort();
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}
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callback.start({ cancel });
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} |