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main.js
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main.js
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const tunes = [];
const filePath = 'JazzStandards-url.json';
let cachedData = null; // Variable to cache the data
function fetchData() {
if (cachedData) {
// Use cached data if it exists
processJSON(cachedData);
} else {
fetch(filePath)
.then(response => {
if (!response.ok) {
throw new Error('Network response was not ok ' + response.statusText);
}
return response.json();
})
.then(data => {
cachedData = data; // Cache the data
processJSON(cachedData); // Process the data
})
.catch(error => {
console.error('There has been a problem with your fetch operation:', error);
});
}
}
function processJSON(data) {
data.forEach(element => {
tunes.push({
title: element['Title'],
composer: element['Composer'],
sections: element['Sections'],
key: element['Key'],
timesignature: element['TimeSignature'],
url: element['url']
});
});
// Sort tunes by title
tunes.sort((a, b) => a.title.localeCompare(b.title));
const container = document.getElementById('index');
container.innerHTML = ''; // Clear the container before appending new elements
tunes.forEach(tune => {
const newDiv = document.createElement('div');
newDiv.className = 'tune';
const titleLink = document.createElement('a');
titleLink.href = generateNewHTMLTune(tune.title, tune.composer, tune.sections, tune.key, tune.timesignature, tune.url);
titleLink.textContent = tune.title;
const composerLink = document.createElement('a');
composerLink.href = '#';
composerLink.addEventListener('click', (event) => {
event.preventDefault(); // Prevent default link behavior
Composer(tune.composer); // Call Composer with the clicked composer
});
composerLink.textContent = tune.composer;
const divider = document.createElement('span');
divider.textContent = ' - ';
newDiv.appendChild(titleLink);
newDiv.appendChild(divider);
newDiv.appendChild(composerLink);
container.appendChild(newDiv);
});
}
// Call the function to fetch data
fetchData();
function generateNewHTMLTune(title, composer, sections, key, timesignature, video_url) {
key = key !== undefined ? key : '';
timesignature = timesignature !== undefined ? timesignature : '';
let htmlContent = `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/dragula/3.7.3/dragula.min.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0&icon_names=home" /> <style>
body {
margin-left: 0px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
position: relative;
left: 50%;
transform: translateX(-50%);
width: 60%;
font-family: 'Roboto', sans-serif;
background-color: #f5f5f5;
color: #333;
min-height: 100vh;
}
::-webkit-scrollbar {
display: none;
}
.transpose-buttons {
display: inline-flex;
flex-direction: column;
margin-left: 10px;
vertical-align: middle;
}
.transpose-buttons button {
background: none;
border: none;
font-size: 16px;
cursor: pointer;
color: #86a6bb; /* Modern color */
}
.header {
width: 100%;
background-color: #86a6bb;
color: #fff;
padding: 20px;
text-align: center;
border-radius: 10px;
margin-bottom: -20px;
}
#sheet {
width: 100%;
background-color: #ffffff;
padding: 20px;
display: grid;
grid-template-columns: repeat(4, 1fr);
border-radius: 10px;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
#composer {
text-align: right;
}
#key {
text-align: right;
border-radius: 10px;
font-size: 16px;
max-width: fit-content;
padding: 5px;
background-color: #F9F9F9;
color: #000;
align-content: center;
}
}
h1, h4, h5 {
margin: 0;
padding: 10px;
}
h1 {
grid-column: span 4;
text-align: center;
}
h2 {
grid-column: span 4;
text-align: left;
border: solid 2px #000;
max-width: fit-content;
padding: 3px;
}
h4 {
grid-column: span 4;
border-bottom: 2px solid #ccc;
max-width: fit-content;
padding: 3px;
}
h5 {
grid-column: span 4;
color: #555;
}
pre {
background-color: #F9F9F9;
border-right: 2px solid #000;
border-left: 2px solid #000;
padding: 10px;
white-space: pre-wrap;
word-wrap: break-word;
display: flex;
justify-content: space-around;
align-items: center;
text-align: center;
font-size: 1vw;
margin-bottom: 10px;
max-width: 100%;
overflow: auto;
}
pre:nth-child(n+2) {
margin-left: -2px;
}
.chord {
margin-left: 2%;
margin-right: 2%;
}
#video-container {
width: 20%;
height: 3%;
cursor: move;
}
.floating-video {
position: relative;
width: 300px;
height: 169px;
border: none;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
cursor: move;
}
div > button {
position: relative;
background-color: #86a6bb;
color: #fff;
border: none;
padding: 5px 10px;
border-radius: 5px;
font-size: 14px;
cursor: pointer;
top: 20px;
z-index: 10000;
}
.videoFloat {
position: absolute;
display: flex;
flex-direction: column;
width: max-content;
height: fit-content;
border: none;
cursor: move;
}
#return{
display: flex;
flex-direction: row;
}
.material-symbols-outlined{
color: white;
}
@media (max-width: 768px) {
body {
width: 80%;
margin-left: 0px;
}
h2 {
font-size: 16px;
}
h4, h5 {
font-size: 1.5vw;
}
pre {
font-size: 2vw;
}
}
@media print {
pre {
font-size: 2vw;
}
}
@media (max-width: 480px) {
.header {
margin-bottom: -20px;
}
body {
width: 90%;
margin-left: 0px;
}
h1 {
font-size: 5vw;
}
h2 {
font-size: 3vw;
}
h4, h5 {
font-size: 3vw;
}
pre {
font-size: 2.5vw;
}
#composer {
font-size: 8px;
}
#key {
font-size: 2.5vw;
}
.transpose-buttons button {
font-size: 3vw;
}
.floating-video {
width: 150px;
height: 84.5px;
}
div > button {
font-size: 10px;
}
.floating-video {
width: 100%;
height: auto;
}
.videoFloat {
width: 50%;
}
}
@media (max-width: 425px) {
.header {
margin-bottom: -20px;
}
body {
width: 95%;
margin-left: 0px;
}
h1 {
font-size: 5vw;
}
h2 {
font-size: 3vw;
}
h4, h5 {
font-size: 3vw;
}
pre {
font-size: 5vw;
}
#composer {
font-size: 12px;
}
#key {
font-size: 2.5vw;
}
.transpose-buttons button {
font-size: 3vw;
}
div > button {
font-size: 10px;
}
#key {
display: none;
}
}
</style>
<title>${title} - ${composer}</title>
</head>
<body>
<section class="header">
<section id="return"><a href="https://freebookofjazz.netlify.app"><span class="material-symbols-outlined">home</span></a></section>
<h1>${title}</h1>
<p id="composer">- ${composer}</p>
<p id="key"> ${key}
<span class="transpose-buttons">
<button onclick="transposeChords(1)">▲</button>
<button onclick="transposeChords(-1)">▼</button>
</span>
</p>
</section>
<section id="sheet">
`;
sections.forEach(section => {
let label = section['Label'] || '';
let mainSegment = section['MainSegment'];
let endings = section['Endings'];
let repeats = section['Repeats']
if (label !== '') {
htmlContent += `<h2>${label}</h2>`;
}
if (mainSegment) {
// Remove comments if you want to include these
// htmlContent += `<h4>Main Segment</h4>`;
if (repeats) {
htmlContent += `<h5>Repeats: ${repeats}</h5>`;
}
let singleBar = mainSegment['Chords'].split('|');
singleBar.forEach(e => {
let singleChord = e.split(',');
htmlContent += `<pre>`;
singleChord.forEach(chord => {
chord = chord.replace(/0/g, '°')
htmlContent += `<div class="chord">${chord}</div>`;
});
htmlContent += `</pre>`;
});
}
if (endings && endings.length > 0) {
endings.forEach((ending, index) => {
// Remove comments if you want to include these
htmlContent += `<h4>Ending ${index + 1}</h4>`;
if (repeats) {
htmlContent += `<h5>Repeats: ${repeats}</h5>`;
}
let singleBar = ending['Chords'].split('|');
singleBar.forEach(e => {
let singleChord = e.split(',');
htmlContent += `<pre>`;
singleChord.forEach(chord => {
chord = chord.replace(/0/g, '°');
htmlContent += `<div class="chord">${chord}</div>`;
});
htmlContent += `</pre>`;
});
});
}
});
htmlContent += `
</section>
<div id="video-container" style="margin-top: 20px;">
<!-- Video will be appended here -->
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dragula/3.7.3/dragula.min.js"></script>
<script>
const notes = [
"C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B",
"Db", "Eb", "Gb", "Ab", "Bb"
];
const enharmonics = {
"B#": "C", "E#": "F", "Cb": "B", "Fb": "E",
"Db": "C#", "Eb": "D#", "Gb": "F#", "Ab": "G#", "Bb": "A#",
"C#": "Db", "D#": "Eb", "F#": "Gb", "G#": "Ab", "A#": "Bb"
};
let currentTransposition = 0;
function transposeChord(chord, semitones) {
let newChord = "";
let regex = /^([A-Ga-g][#b]?)(.*)$/;
let match = chord.match(regex);
if (match) {
let note = match[1];
let rest = match[2];
if (enharmonics[note]) {
note = enharmonics[note];
}
let index = notes.indexOf(note);
if (index !== -1) {
let newIndex = (index + semitones + notes.length) % notes.length;
let transposedNote = notes[newIndex];
// Use the preferred enharmonic equivalents
if (enharmonics[transposedNote]) {
transposedNote = enharmonics[transposedNote];
}
newChord = transposedNote + rest;
} else {
newChord = chord; // If not a recognized note, return original chord
}
} else {
newChord = chord; // If not a recognized chord, return original chord
}
return newChord;
}
function transposeChords(semitones) {
const chordElements = document.querySelectorAll(".chord");
chordElements.forEach(chordElement => {
let chord = chordElement.innerText;
let newChord = transposeChord(chord, semitones);
chordElement.innerText = newChord;
});
}
function adjustFontSize() {
const preElements = document.querySelectorAll("pre");
preElements.forEach(pre => {
let fontSize = parseFloat(window.getComputedStyle(pre).fontSize);
while (pre.scrollWidth > pre.clientWidth && fontSize > 1) {
fontSize -= 0.5; // Decrease font size
pre.style.fontSize = fontSize + 'px';
}
});
}
window.addEventListener("resize", adjustFontSize);
adjustFontSize();
// Function to embed the YouTube video
function embedYouTubeVideo() {
const videoContainer = document.createElement('div');
videoContainer.classList.add('videoFloat');
videoContainer.style.position = 'absolute';
if (window.innerWidth <= 480) {
videoContainer.style.bottom = '0px';
videoContainer.style.right = '0px';
} else {
videoContainer.style.bottom = '-20px';
videoContainer.style.right = '-20px';
}
const iframe = document.createElement('iframe');
iframe.className = 'floating-video';
iframe.width = '300'; // Adjust width as needed
iframe.src = "${video_url.replace('watch?v=', '').replace('youtube.com/', 'hepedroza.com/videosFreeBook/downloaded_videos/')}.mp4"
iframe.frameborder = '0';
iframe.allow = 'accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture; fullscreen';
// Show/Hide button
const toggleButton = document.createElement('button');
toggleButton.innerText = 'Hide Video';
toggleButton.style.cursor = 'pointer';
toggleButton.addEventListener('click', () => {
if (iframe.style.display !== 'none') {
iframe.style.display = 'none'; // Hide video
toggleButton.innerText = 'Show Video';
} else {
iframe.style.display = 'block'; // Show video
toggleButton.innerText = 'Hide Video';
}
});
videoContainer.appendChild(iframe);
videoContainer.appendChild(toggleButton);
document.getElementById('video-container').appendChild(videoContainer);
makeDraggable(videoContainer);
}
function makeDraggable(element) {
let isDragging = false;
let startX, startY, initialX, initialY;
function onPointerDown(e) {
isDragging = true;
startX = e.clientX || e.touches[0].clientX;
startY = e.clientY || e.touches[0].clientY;
initialX = element.offsetLeft;
initialY = element.offsetTop;
document.addEventListener('mousemove', onPointerMove);
document.addEventListener('mouseup', onPointerUp);
document.addEventListener('touchmove', onPointerMove, { passive: false });
document.addEventListener('touchend', onPointerUp);
}
function onPointerMove(e) {
if (isDragging) {
const x = e.clientX || e.touches[0].clientX;
const y = e.clientY || e.touches[0].clientY;
const dx = x - startX;
const dy = y - startY;
element.style.left = initialX + dx+'px';
element.style.top = initialY + dy+'px';
if (e.preventDefault) e.preventDefault(); // Prevent scrolling during drag
}
}
function onPointerUp() {
isDragging = false;
document.removeEventListener('mousemove', onPointerMove);
document.removeEventListener('mouseup', onPointerUp);
document.removeEventListener('touchmove', onPointerMove);
document.removeEventListener('touchend', onPointerUp);
}
element.addEventListener('mousedown', onPointerDown);
element.addEventListener('touchstart', onPointerDown, { passive: false });
}
let width = document.documentElement.clientWidth
if(width > 425){
embedYouTubeVideo();
}
</script>
</body>
</html>
`;
const blob = new Blob([htmlContent], { type: 'text/html' });
const url = URL.createObjectURL(blob);
return url;
}
function Composer(composer) {
document.getElementById('btn').style.display = "block"
let matches = [];
const text = composer.toLowerCase();
tunes.forEach(tune => {
if (tune.composer.toLowerCase() === text) {
matches.push(tune);
}
});
const container = document.getElementById('index');
container.innerHTML = '';
matches.forEach(tune => {
const newDiv = document.createElement('div');
newDiv.className = 'tune';
const titleLink = document.createElement('a');
titleLink.href = generateNewHTMLTune(tune.title, tune.composer, tune.sections, tune.key, tune.timesignature, tune.url);
titleLink.textContent = tune.title;
// titleLink.setAttribute('target', '_blank');
const composerSpan = document.createElement('span');
composerSpan.textContent = tune.composer;
const divider = document.createElement('span');
divider.textContent = ' - ';
newDiv.appendChild(titleLink);
newDiv.appendChild(divider);
newDiv.appendChild(composerSpan);
container.appendChild(newDiv);
});
}
function Search() {
let matches = [];
const text = document.getElementById('SearchText').value.toLowerCase();
tunes.forEach(tune => {
if (tune.title.toLowerCase().includes(text)) {
matches.push(tune);
}
});
const container = document.getElementById('index');
container.innerHTML = '';
matches.forEach(tune => {
let searchBox = document.getElementById('searchBox');
let existingParagraph = searchBox.querySelector('p');
if (existingParagraph) {
searchBox.removeChild(existingParagraph);
}
const newDiv = document.createElement('div');
newDiv.className = 'tune';
const titleLink = document.createElement('a');
titleLink.href = generateNewHTMLTune(tune.title, tune.composer, tune.sections, tune.key, tune.timesignature, tune.url);
titleLink.textContent = tune.title;
// titleLink.setAttribute('target', '_blank');
const composerLink = document.createElement('a');
composerLink.href = '#';
composerLink.addEventListener('click', (event) => {
event.preventDefault(); // Prevent default link behavior
Composer(tune.composer); // Call Composer with the clicked composer
});
composerLink.textContent = tune.composer;
const divider = document.createElement('span');
divider.textContent = ' - ';
newDiv.appendChild(titleLink);
newDiv.appendChild(divider);
newDiv.appendChild(composerLink);
container.appendChild(newDiv);
});
if (matches.length == 0) {
let searchBox = document.getElementById('searchBox');
let existingParagraph = searchBox.querySelector('p');
if (existingParagraph) {
existingParagraph.textContent = 'No matches Found!';
} else {
let paragraph = document.createElement('p');
paragraph.textContent = 'No matches Found!';
searchBox.appendChild(paragraph);
}
tunes.forEach(tune => {
const newDiv = document.createElement('div');
newDiv.className = 'tune';
const titleLink = document.createElement('a');
titleLink.href = generateNewHTMLTune(tune.title, tune.composer, tune.sections, tune.key, tune.timesignature, tune.url);
titleLink.textContent = tune.title;
// titleLink.setAttribute('target', '_blank');
const composerLink = document.createElement('a');
composerLink.href = '#';
composerLink.addEventListener('click', (event) => {
event.preventDefault(); // Prevent default link behavior
Composer(tune.composer); // Call Composer with the clicked composer
});
composerLink.textContent = tune.composer;
const divider = document.createElement('span');
divider.textContent = ' - ';
newDiv.appendChild(titleLink);
newDiv.appendChild(divider);
newDiv.appendChild(composerLink);
const container = document.getElementById('index');
container.appendChild(newDiv);
});
}
if (matches.length == 1382 || matches.length == 0){
document.getElementById('btn').style.display = "none"
}else{
document.getElementById('btn').style.display = "block"
}
}
function clearSearch() {
document.getElementById('SearchText').value = '';
let searchBox = document.getElementById('searchBox');
let existingParagraph = searchBox.querySelector('p');
if (existingParagraph) {
searchBox.removeChild(existingParagraph);
}
}