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/*
* TODO:
* check if files exist
* check file sizes
*/
var running = false;
var queue = [];
function queue_work(){
let i = 0;
for(; i < queue.length; i++){
item = queue[i];
if(!item.started){
console.log(item);
console.log("Starting " + item.file.name);
item.started = true;
let req = new XMLHttpRequest();
let data = new FormData();
data.append("file", item.file);
req.upload.addEventListener("progress", function(evt){
if(evt.lengthComputable){
console.log("Upload for " + item.file.name + " at " + evt.loaded / evt.total);
item.node.childNodes[1].value = evt.loaded;
}
});
req.onloadstart = function(evt){
console.log("Upload for " + item.file.name + " started");
item.node.childNodes[1].max = item.file.size;
item.node.childNodes[1].value = 0;
};
req.onloadend = function(evt){
console.log("Upload for " + item.file.name + " ended");
queue_work();
};
req.onerror = function(evt){
console.log("Upload for " + item.file.name + " errored");
item.node.className += " errored";
};
req.onabort = function(evt){
console.log("Upload for " + item.file.name + " aborted");
item.node.className += " errored";
};
req.onreadystatechange = function(evt){
console.log("Upload for " + item.file.name + " state " + req.readyState);
if(req.readyState === XMLHttpRequest.DONE && req.status != 200){
console.log("Upload for " + item.file.name + " failed with " + req.status);
item.node.className += " errored";
}
};
req.open("POST", 'upload');
req.send(data);
return;
}
}
console.log("Queue run done");
running = false;
}
function queue_run(){
if(running || queue.length == 0){
return;
}
running = true;
console.log("Starting queue run");
queue_work();
}
function element(id){
return document.getElementById(id);
}
function node(tag, style, text){
let new_node = document.createElement(tag);
new_node.className = style;
if(text){
new_node.textContent = text;
}
return new_node;
}
function upload_element(file){
let new_node = node("div", "queue-entry");
new_node.appendChild(node("span", "name", file.name));
new_node.appendChild(node("progress", "progress"));
element("queue").appendChild(new_node);
return new_node;
}
function upload_start(element){
for(let i = 0; i < element.target.files.length; i++){
console.log(element.target.files[i]);
queue.push({"file": element.target.files[i], "node": upload_element(element.target.files[i]), "progress": 0, "started": false});
}
queue_run();
}
function listing_clear(){
element("dirlisting").innerHTML = "";
}
function interface_update(access){
if(!access.includes("c")){
element("tab-upload-label").style.display = "none";
}
if(!access.includes("r")){
element("tab-view-label").style.display = "none";
element("tab-upload").checked = "checked";
}
}
function listing_add(file, style = "default"){
let link = node("a", "listing-entry", file.name);
link.href = "file/" + encodeURIComponent(file.name);
link.setAttribute("data-filename", file.name)
if(style == "gallery"){
let image = node("img", "preview");
image.src = "preview/" + encodeURIComponent(file.name);
//link.insertBefore(image, link.firstChild);
link.appendChild(image);
}
element("dirlisting").appendChild(link);
}
function listing_update(){
listing_clear();
let req = new XMLHttpRequest();
req.onload = function(evt){
let data = JSON.parse(req.response);
interface_update(data.access);
for(let i = 0; i < data.files.length; i++){
listing_add(data.files[i], data.display);
}
};
req.open("GET", "listing");
req.send();
}
function download_all(ev){
let links = document.getElementsByClassName("listing-entry");
var current = 0;
var interval = setInterval(function(){
if(current < links.length){
link = links[current];
link.download = link.getAttribute("data-filename");
link.click();
link.removeAttribute("download");
current++;
}
else{
clearInterval(interval);
}
}, 1000);
}
function init(){
element("file-submit").style.display = "none";
element("files").onchange = upload_start;
element("download-all").onclick = download_all;
listing_update();
}
window.onload = init;
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