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Created June 21, 2023 01:52
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Javascript Library Management Web App
Raw
0-JS-LIB-MANAGER.MD

JAVASCRIPT LIBRARY MANAGEMENT

https://code-boxx.com/javascript-library-management-system/

IMAGES

favicon icon-512

LICENSE

Copyright by Code Boxx

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Raw
1-js-lib.html
<!DOCTYPE html>
<html>
<head>
<!-- TITLE + CHARSET + DESCRIPTION + VIEWPORT + FAVICON -->
<title>Library Management System</title>
<meta charset="utf-8">
<meta name="description" content="Library Management">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.5">
<link rel="icon" href="favicon.png" type="image/png">
<!-- ANDROID + CHROME + APPLE + WINDOWS APP -->
<meta name="mobile-web-app-capable" content="yes">
<meta name="theme-color" content="white">
<link rel="apple-touch-icon" href="icon-512.png">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-title" content="Lib Manager">
<meta name="msapplication-TileImage" content="icon-512.png">
<meta name="msapplication-TileColor" content="#ffffff">
<!-- WEB APP MANIFEST -->
<!-- https://web.dev/add-manifest/ -->
<link rel="manifest" href="3-manifest.json">
<!-- SERVICE WORKER -->
<script>
if ("serviceWorker" in navigator) {
navigator.serviceWorker.register("4-worker.js");
}
</script>
<!-- STYLESHEET + JAVASCRIPT -->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<link rel="stylesheet" href="2-js-lib.css">
<script defer src="2-js-lib.js"></script>
</head>
<body>
<!-- (A) ADD/EDIT MEDIA -->
<div id="libFormWrap"><form id="libForm" onsubmit="return lib.add()">
<div id="formClose" class="mi" onclick="lib.toggle(false)">
close
</div>
<input type="hidden" id="formID">
<label>ISBN/ISSN/Serial Number</label>
<input type="text" id="formCode" required>
<label>Title</label>
<input type="text" id="formTitle" required>
<label>Author</label>
<input type="text" id="formAuthor" required>
<label>Location</label>
<input type="text" id="formLoc" required>
<input type="submit" value="Save">
</form></div>
<!-- (B) MEDIA LIST -->
<div id="libListWrap">
<div id="libListHead">
<h1>MEDIA LIST</h1>
<div id="formAdd" class="mi" onclick="lib.toggle(true)">
add
</div>
</div>
<div id="libList"></div>
</div>
</body>
</html>
Raw
2-js-lib.css
/* (A) WHOLE PAGE */
.mi{font-family:"Material Icons";font-weight:400;font-style:normal;text-decoration:none;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;word-wrap:normal;direction:ltr;-webkit-font-feature-settings:"liga";-webkit-font-smoothing:antialiased}
* {
font-family: arial, sans-serif;
box-sizing: border-box;
}
body {
padding: 0;
margin: 0;
}
/* (B) SHARED */
button, input[type=button], input[type=submit], #formAdd, #formClose {
border: 1px solid #424eab;
color: #fff;
background: #5561bd;
cursor: pointer;
}
input, button { padding: 10px; }
input.mi, #formAdd, #formClose { padding: 15px; }
#libFormWrap, #libListHead {
display: flex;
align-items: center;
justify-content: center;
}
/* (C) ADD/EDIT MEDIA */
/* (C1) FULL PAGE WRAPPER WRAPPER */
#libFormWrap {
position: fixed;
top: 0; left: 0; z-index: 999;
width: 100vw; height: 100vh;
background: rgba(0, 0, 0, 0.5);
opacity: 0; visibility: hidden;
transition: opacity 0.3s;
}
#libFormWrap.show {
opacity: 1; visibility: visible;
}
/* (C2) ADD/EDIT FORM */
#libForm {
position: relative;
width: 350px;
padding: 20px;
border: 1px solid #ddd;
background: #f2f2f2;
}
#formClose {
position: absolute;
top: 0; right: 0;
font-weight: 700;
}
#libForm, #libForm input { border-radius: 10px; }
#libForm label, #libForm input {
display: block;
width: 100%;
}
#libForm label { margin: 10px 0; }
#libForm input { border: 1px solid #ccc; }
#libForm input[type=submit] { margin-top: 20px; }
/* (D) MEDIA LIST */
/* (D1) LIST WRAPPER */
#libListWrap {
max-width: 1000px;
padding: 10px;
margin: 0 auto;
}
/* (D2) LIST HEADER */
#libListHead {
display: flex;
align-items: center;
justify-content: center;
}
#libListHead h1 { flex-grow: 1; }
/* (D3) LIST ITEMS */
#libList .row {
display: flex;
border: 1px solid #eee;
background: #f2f2f2;
margin: 10px 0;
}
#libList .bdel {
padding: 0 20px;
border: 0;
color: #fff;
background: #780000;
}
#libList .binfo {
padding: 10px;
flex-grow: 1;
}
Raw
2-js-lib.js
var lib = {
// (A) PROPERTIES
// (A1) INDEXED DB
iDB : null, iTX : null, iName : "MyLib",
// (A2) HTML ELEMENTS
hForm : null, hID : null, hCode : null,
hTitle : null, hAuthor : null, hLoc : null, hList : null,
// (B) INIT
init : () => {
// (B1) REQUIREMENTS CHECK - INDEXED DB
window.indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
if (!window.indexedDB) {
alert("Your browser does not support indexed database.");
return;
}
// (B2) REQUIREMENTS CHECK - STORAGE CACHE
if (!"caches" in window) {
alert("Your browser does not support cache storage.");
return;
}
// (B3) OPEN IDB
let req = window.indexedDB.open(lib.iName, 1);
// (B4) IDB OPEN ERROR
req.onerror = evt => {
alert("Indexed DB init error - " + evt.message);
console.error(evt);
};
// (B5) IDB UPGRADE NEEDED
req.onupgradeneeded = evt => {
lib.iDB = evt.target.result;
// (B5-1) IDB UPGRADE ERROR
lib.iDB.onerror = evt => {
alert("Indexed DB upgrade error - " + evt.message);
console.error(evt);
};
// (B5-2) IDB VERSION 1
if (evt.oldVersion < 1) {
let store = lib.iDB.createObjectStore(lib.iName, {
keyPath: "id",
autoIncrement: true
});
store.createIndex("code", "code");
store.createIndex("title", "title");
store.createIndex("author", "author");
}
};
// (B6) IDB OPEN OK
req.onsuccess = evt => {
// (B6-1) IDB OBJECTS
lib.iDB = evt.target.result;
lib.iTX = () => {
return lib.iDB
.transaction(lib.iName, "readwrite")
.objectStore(lib.iName);
};
// (B6-2) GET HTML ELEMENTS
lib.hForm = document.getElementById("libFormWrap");
lib.hID = document.getElementById("formID");
lib.hCode = document.getElementById("formCode");
lib.hTitle = document.getElementById("formTitle");
lib.hAuthor = document.getElementById("formAuthor");
lib.hLoc = document.getElementById("formLoc");
lib.hList = document.getElementById("libList");
// (B6-3) DRAW BOOKS LIST
lib.draw();
};
},
// (C) TOGGLE ADD/EDIT MEDIA FORM
toggle : id => {
// (C1) HIDE FORM
if (id == false) {
lib.hID.value = "";
lib.hCode.value = "";
lib.hTitle.value = "";
lib.hAuthor.value = "";
lib.hLoc.value = "";
lib.hForm.classList.remove("show");
}
// (C2) SHOW FORM
else {
// (C2-1) "EDIT" MODE
if (Number.isInteger(id)) {
let req = lib.iTX().get(id);
req.onsuccess = evt => {
lib.hID.value = id;
lib.hCode.value = req.result.code;
lib.hTitle.value = req.result.title;
lib.hAuthor.value = req.result.author;
lib.hLoc.value = req.result.location;
};
}
// (C2-2) SHOW FORM
lib.hForm.classList.add("show");
}
},
// (D) ADD A NEW BOOK
add : () => {
// (D1) DATA TO SAVE
let data = {
id : lib.hID.value,
code : lib.hCode.value,
title : lib.hTitle.value,
author : lib.hAuthor.value,
location : lib.hLoc.value
};
// (D2) SAVE OR UPDATE
if (data.id == "") {
delete data.id;
lib.iTX().add(data);
} else {
data.id = parseInt(data.id);
lib.iTX().put(data);
}
// (D3) DONE
lib.toggle(false);
lib.draw();
return false;
},
// (E) DELETE ENTRY
del : id => { if (confirm(`Delete ${id}?`)) {
// (E1) DELETE BOOK
lib.iTX().delete(id);
// (E2) REDRAW LIST
lib.draw();
}},
// (F) DRAW BOOKS LIST
draw : () => {
lib.hList.innerHTML = "";
lib.iTX().getAll().onsuccess = evt => { for (let book of evt.target.result) {
let row = document.createElement("div");
row.className = "row";
row.innerHTML = `<div class="binfo">
<div>
<i class="mi">numbers</i> ${book.id}
<i class="mi">qr_code_2</i> ${book.code}
</div>
<div>
<i class="mi">menu_book</i> ${book.title}
<i class="mi">person_outline</i> ${book.author}
</div>
<i class="mi">room</i> ${book.location}
</div>
<input type="button" class="mi" value="delete" onclick="lib.del(${book.id})">
<input type="button" class="mi" value="edit" onclick="lib.toggle(${book.id})">`;
lib.hList.appendChild(row);
}};
}
};
window.addEventListener("DOMContentLoaded", lib.init);
Raw
3-manifest.json
{
"short_name": "Lib",
"name": "Lib Manager",
"icons": [{
"src": "favicon.png",
"sizes": "64x64",
"type": "image/png"
}, {
"src": "icon-512.png",
"sizes": "512x512",
"type": "image/png"
}],
"start_url": "1-js-lib.html",
"scope": "/",
"background_color": "white",
"theme_color": "white",
"display": "standalone"
}
Raw
4-worker.js
// (A) CREATE/INSTALL CACHE
self.addEventListener("install", evt => {
self.skipWaiting();
evt.waitUntil(
caches.open("JSLibMgr")
.then(cache => cache.addAll([
"favicon.png",
"icon-512.png",
"maticon.woff2",
"1-js-lib.html",
"2-js-lib.js",
"2-js-lib.css"
]))
.catch(err => console.error(err))
);
});
// (B) CLAIM CONTROL INSTANTLY
self.addEventListener("activate", evt => self.clients.claim());
// (C) LOAD FROM CACHE FIRST, FALLBACK TO NETWORK IF NOT FOUND
self.addEventListener("fetch", evt => evt.respondWith(
caches.match(evt.request).then(res => res || fetch(evt.request))
));
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