Function uploadFile

webUi/scripts.js:508–529

(folder, file)

        });
}
function uploadFile(folder, file) {
    return new Promise((resolve, reject) => {
        const id = 'upfill' + (uploadIdx++);
        const row = document.createElement('div');
        row.className = 'upl';
        row.innerHTML = `<div class="upl-fill" id="${id}"></div><div class="upl-lbl">${file.webkitRelativePath || file.name}</div>`;
        _('uplist').appendChild(row);
        const formdata = new FormData();
        formdata.append("file", file, file.webkitRelativePath || file.name);
        formdata.append("folder", folder);
        const ajax = new XMLHttpRequest();
        ajax.upload.addEventListener("progress", (event) => {
            if (event.lengthComputable)
                _(id).style.width = Math.round(event.loaded / event.total * 100) + '%';
        }, false);
        ajax.addEventListener("load", () => resolve(), false);
        ajax.addEventListener("error", () => reject(), false);
        ajax.addEventListener("abort", () => reject(), false);
        ajax.open("POST", "/");
        ajax.send(formdata);
    });
}