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builder.html
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<!DOCTYPE html>
<html>
<head>
<script async src="https://arc.io/widget.min.js#HEPCFa3K"></script>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<title>ayunWebEPK</title>
<script type="text/javascript" src="jszip.min.js"></script>
<script type="text/javascript" src="pako.min.js"></script>
<script type="text/javascript" src="sha1.min.js"></script>
<script type="text/javascript" src="ayunEPKDecompiler.js"></script>
<script type="text/javascript" src="ayunEPKCompiler.js"></script>
<link rel="preconnect" href="https://fonts.googleapis.com"/>
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin/>
<link href="https://fonts.googleapis.com/css2?family=Nunito&display=swap" rel="stylesheet"/>
<style>
a:not([href]) {
display: none;
}
*, ::file-selector-button {
font-family: 'Nunito', sans-serif;
}
body {
background-color: #111111;
color: #dddddd;
}
input[disabled], button[disabled] {
opacity: 0.8;
}
input[type=checkbox] {
-webkit-appearance: initial;
-moz-appearance: initial;
appearance: initial;
width: 1.5em;
height: 1.5em;
margin: 0;
}
input[type=checkbox]:checked {
background-color: #eeeeee;
}
input[type=checkbox]:before {
content: ':>';
text-align: center;
color: #dddddd;
margin-left: 0.3em;
}
input[type=checkbox]:checked:before {
color: #343434;
}
input[type=checkbox]:after {
content: 'No';
color: #dddddd;
margin-left: 0.6em;
}
input[type=checkbox]:checked:after {
content: 'Yes';
}
@supports (-webkit-touch-callout: none) or (background: -webkit-named-image(i)) {
input[type=checkbox]:after {
content: 'no';
}
input[type=checkbox]:checked:after {
content: 'yes';
}
}
@supports (-moz-appearance: none) {
input[type=checkbox]:after {
content: 'No.';
}
input[type=checkbox]:checked:after {
content: 'Yes.';
}
}
::file-selector-button, progress, input[type=checkbox], button, select, input[type=text] {
background-color: #343434;
color: #eeeeee;
border: 1px solid #eeeeee;
border-radius: 4px;
}
a, input[type=file] {
color: #dddddd;
}
progress {
height: 1em;
}
progress, ::-webkit-file-upload-button {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
progress[value="0"][max="1"] {
display: none;
}
::-moz-progress-bar {
background-color: #eeeeee;
}
::-webkit-progress-value {
background-color: #eeeeee;
}
::-webkit-progress-bar {
background-color: #343434;
border-radius: 4px;
}
#editor.modei pre, #editor.modei audio, #editor.modea pre, #editor.modea img, #editor.modet img, #editor.modet audio, #editor.model {
display: none;
}
</style>
</head>
<body>
<sub><a href=".">Want to compile one instead?</a></sub>
<br/>
<sub><a href="decompile.html">Want to decompile one instead?</a></sub>
<h1>ayunWebEPK</h1>
<p>Customize EPK files in your browser!</p>
Select base .EPK: <input type="file" onchange="selectFile(this);" accept=".epk"/>
<br/>
Compile to legacy format: <input type="checkbox"/>
<br/>
<button onclick="compileIt(document.querySelector('input[type=file]'));" disabled>Compile it!</button>
<br/>
<br/>
<progress value="0" max="1"></progress>
<a download="my-cool.epk">Download your EPK!</a>
<div id="editor" class="model">
<input type="text" placeholder="Search or enter file name..."/>
<select></select>
<button onclick="createFile(this.previousElementSibling.previousElementSibling.value);" disabled>Create file...</button>
<button onclick="deleteCurrentFile();">Delete file...</button>
<br/>
<h3></h3>
Change this file: <input type="file" onchange="changeFile(this);"/>
<br/>
<img/>
<audio controls></audio>
<pre></pre>
</div>
<script>
const downloadLink = document.querySelectorAll('a')[2];
const progressBar = document.querySelector('progress');
const oldBox = document.querySelector('input[type=checkbox]');
const compileBtn = document.querySelector('button');
const editor = document.getElementById('editor');
const dropdown = document.querySelector('select');
const editorName = editor.querySelector('h3');
const editorImage = editor.querySelector('img');
const editorAudio = editor.querySelector('audio');
const editorText = editor.querySelector('pre');
const editorSearch = editor.querySelector('input[type=text]');
editorSearch.value = '';
// https://stackoverflow.com/a/68703218/6917520
function prefix(words) {
// check border cases size 1 array and empty first word)
if (!words[0] || words.length == 1) return words[0] || "";
let i = 0;
// while all words have the same character at position i, increment i
while(words[0][i] && words.every(w => w[i] === words[0][i]))
i++;
// prefix is the substring from the beginning to the last successfully checked i
return words[0].substr(0, i);
}
let epkFiles = [];
let selectedFile = 0;
function selectFile(fileElem) {
epkFiles.length = 0;
downloadLink.removeAttribute('href');
fileElem.disabled = true;
if (fileElem.files.length > 0) {
const epkFile = fileElem.files[0];
const reader = new FileReader();
reader.onload = function(e) {
progressBar.value = 0;
progressBar.max = 1;
window.decompileEPK()(e.target.result, function() {
progressBar.max++;
progressBar.value++;
}).then(function(fileList) {
if (fileList == null) {
alert('Invalid EPK!');
fileElem.value = '';
progressBar.value = 0;
progressBar.max = 1;
fileElem.removeAttribute('disabled');
return;
}
fileElem.value = '';
progressBar.value = 0;
progressBar.max = 1;
fileElem.removeAttribute('disabled');
epkFiles = fileList;
editor.className = '';
refreshDropdown();
compileBtn.removeAttribute('disabled');
});
};
reader.readAsArrayBuffer(epkFile);
} else {
fileElem.removeAttribute('disabled');
}
}
function compileIt(fileElem) {
compileBtn.disabled = true;
fileElem.disabled = true;
oldBox.disabled = true;
progressBar.value = 0;
progressBar.max = epkFiles.length;
window.compileEPK()(epkFiles, oldBox.checked, function() {
progressBar.value++;
}).then(blob => {
if (blob == null) {
alert('Invalid EPK!');
progressBar.value = 0;
progressBar.max = 1;
oldBox.removeAttribute('disabled');
fileElem.removeAttribute('disabled');
return;
}
downloadLink.href = window.URL.createObjectURL(blob);
progressBar.value = 0;
progressBar.max = 1;
oldBox.removeAttribute('disabled');
fileElem.removeAttribute('disabled');
compileBtn.removeAttribute('disabled');
});
}
function filterDropdown(str) {
str = str.trim().toLowerCase();
const queries = str.split(' ');
const opts = [...dropdown.querySelectorAll('option')];
let oldValue = dropdown.value;
let selectedOne = false;
for (const opt of opts) {
opt.selected = false;
opt.hidden = true;
const lowerOptText = opt.text.toLowerCase();
if (lowerOptText == str) {
if (selectedOne) {
selectedOne.selected = false;
}
selectedOne = opt;
opt.selected = true;
opt.hidden = false;
continue;
}
for (const query of queries) {
if (lowerOptText.includes(query)) {
if (!selectedOne) {
selectedOne = opt;
opt.selected = true;
}
opt.hidden = false;
}
}
}
if (dropdown.value != oldValue) {
dropdown.onchange();
}
}
dropdown.onchange = function() {
selectedFile = dropdown.value;
const fileItem = epkFiles[selectedFile];
editorName.innerText = fileItem.name;
const lowerName = fileItem.name.toLowerCase();
if (lowerName.endsWith('.mp3') || lowerName.endsWith('.ogg')) {
editor.className = 'modea';
editorAudio.src = window.URL.createObjectURL(fileItem.data);
} else if (lowerName.endsWith('.png')) {
editor.className = 'modei';
editorImage.src = window.URL.createObjectURL(fileItem.data);
} else {
editor.className = 'modet';
fileItem.data.text().then(t => {
editorText.innerText = t;
});
}
};
function refreshDropdown() {
dropdown.innerHTML = '';
for (const fileInd in epkFiles) {
if (epkFiles[fileInd].type != 'FILE') {
continue;
}
dropdown.add(new Option(epkFiles[fileInd].name, fileInd, false, fileInd == 0));
}
dropdown.onchange();
editorSearch.oninput();
}
function deleteCurrentFile() {
epkFiles.splice(selectedFile, 1);
refreshDropdown();
}
function createFile(name) {
epkFiles.push({
type: 'FILE',
name: name,
data: new Blob([])
});
refreshDropdown();
}
function changeFile(fileElem) {
if (fileElem.files.length > 0) {
epkFiles[selectedFile].data = fileElem.files[0];
fileElem.value = '';
dropdown.onchange();
}
}
editorSearch.oninput = function() {
filterDropdown(editorSearch.value);
if (this.value != '' && epkFiles[this.nextElementSibling.value].name.toLowerCase() != this.value.toLowerCase()) {
editorSearch.nextElementSibling.nextElementSibling.removeAttribute('disabled');
} else {
editorSearch.nextElementSibling.nextElementSibling.disabled = true;
}
};
</script>
</body>
</html>