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index.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Messaging Segment Calculator</title>
<link rel="stylesheet" href="./main.css">
<script type="text/javascript" src="./grapheme-splitter.js"></script>
<script type="text/javascript" src="./segments_calculator.js"></script>
<script type="text/javascript" src="./segments_viewer.js"></script>
</head>
<body>
<!-- https://github.com/tholman/github-corners -->
<a href="https://github.com/TwilioDevEd/message-segment-calculator" class="github-corner" aria-label="View source on GitHub"><svg width="60" height="60" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
<h1>Messaging Segment Calculator</h1>
<div id="calculator">
<div id="calculator-header">
<div id="message-box">
<label class="label" for="message">SMS Message </label>
<textarea class="" type="text" id="message" name="message"></textarea>
</div>
<div id="information-box">
<span class="label">Encoding</span>
<div class="value">
<select class="not-really-value" id="encoding">
<option value="auto">Automatic</option>
<option value="GSM-7">GSM-7</option>
<option value="UCS-2">UCS-2</option>
</select>
</div>
<span class="label">Encoding Used</span>
<span class="value" id="encoding-used"></span>
<span class="label">Number of segments</span>
<span class="value" id="segment-counter"></span>
<span class="label">Number of characters</span>
<span class="value" id="unicode-char-counter"></span>
<span class="label">Number of Unicode scalars</span>
<span class="value" id="unicode-scalar-counter"></span>
<span class="label">Message size</span>
<span class="value" id="message-size-counter"></span>
<span class="label">Total size sent</span>
<span class="value" id="total-size-counter"></span>
</div>
</div>
<div id="viewers">
<div id="viewers-inner">
<span class="label">Message Parsed</span>
<span class="value">
<span id="message-blocks">
<div id="message-viewer"></div>
</span>
</span>
<span class="label">Segments</span>
<span class="value">
<span id="segments-blocks">
<div id="segments-viewer"></div>
</span>
</span>
</div>
</div>
<div id="legend" class="legend">
<p><span class="label">Legend</span></p>
<p><img class="legend-block" src="data:image/svg+xml;base64,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"> - SMS Header</p>
<p><span class="legend-block">0xFFFF</span> - Character block</p>
<p><span class="legend-block" style="color: red">0xFFFF</span> - Non GSM-7 character block</p>
</div>
</div>
<script>
const graphemeSplitter = new GraphemeSplitter();
const messageBox = document.getElementById('message');
const encodingSelect = document.getElementById('encoding');
const encodingUsed = document.getElementById('encoding-used');
const messageViewerBox = document.getElementById('message-blocks');
const segmentsViewerBox = document.getElementById('segments-blocks');
const messageViewer = new MessageViewer(document.getElementById('message-viewer'), 5);
const segmentsViewer = new SegmentsViewer(document.getElementById('segments-viewer'), 5);
const counters = {
segments: document.getElementById('segment-counter'),
unicodeCharCounter: document.getElementById('unicode-char-counter'),
unicodeScalarCounter: document.getElementById('unicode-scalar-counter'),
messageSize: document.getElementById('message-size-counter'),
totalSize: document.getElementById('total-size-counter')
};
function updateCalculator() {
const messageBodyText = messageBox.value;
const encoding = encodingSelect.value;
const segmentedMessage = new SegmentedMessage(messageBodyText, encoding, graphemeSplitter);
if (encodingUsed.textContent !== segmentedMessage.getEncodingName()) {
messageViewerBox.setAttribute('data-encoding', segmentedMessage.getEncodingName());
segmentsViewerBox.setAttribute('data-encoding', segmentedMessage.getEncodingName());
encodingUsed.textContent = segmentedMessage.getEncodingName();
encodingUsed.classList.add('recently-changed');
setTimeout(() => {encodingUsed.classList.remove('recently-changed');}, 3000);
}
counters.segments.textContent = segmentedMessage.segments.length;
counters.unicodeCharCounter.textContent = graphemeSplitter.countGraphemes(messageBodyText);
counters.unicodeScalarCounter.textContent = [...messageBodyText].length;
counters.messageSize.textContent = `${segmentedMessage.messageSize} bits`;
counters.totalSize.textContent = `${segmentedMessage.totalSize} bits`;
messageViewer.update(segmentedMessage);
segmentsViewer.update(segmentedMessage);
}
function selectBlocks(event) {
const block = event.target.closest('.block');
if (block) {
const mapKey = block.getAttribute("data-key");
if (mapKey) {
messageViewer.select(mapKey);
segmentsViewer.select(mapKey);
}
}
}
function clearSelection(event) {
messageViewer.clearSelection();
segmentsViewer.clearSelection();
}
messageBox.oninput = (event) => { updateCalculator(); };
encodingSelect.onchange = (event) => { updateCalculator(); };
messageViewerBox.onmouseout = clearSelection;
segmentsViewerBox.onmouseout = clearSelection;
messageViewerBox.onmouseover = selectBlocks;
segmentsViewerBox.onmouseover = selectBlocks;
updateCalculator();
</script>
</body>
</html>