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Enhance code block functionality: add syntax highlighting with Highli… #23

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Merged
MIbnEKhalid merged 1 commit into from
Apr 9, 2025
Merged

Enhance code block functionality: add syntax highlighting with Highli… #23

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158 changes: 84 additions & 74 deletions views/mainPages/chatbot.handlebars
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,8 @@
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.15/codemirror.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.15/theme/monokai.min.css">
<script src="/Assets/Scripts/main.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/styles/monokai.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/highlight.min.js"></script>
<script src="/Assets/Scripts/logout.js"></script>
<style>
:root {
Expand Down Expand Up @@ -414,22 +416,6 @@
font-style: italic;
}

pre {
font-family: Consolas;
position: relative;
border: .1rem solid var(--main-border-color);
background: #000;
padding: 1em;
border-radius: 5px;
overflow-x: auto;
line-height: 1;
margin: 10px 0;
}

pre code {
font-family: 'Courier New', monospace;
color: var(--text-light);
}

.code-copy-button {
position: absolute;
Expand Down Expand Up @@ -529,21 +515,25 @@
}

.message-bubble code {
background-color: #383838;
border-radius: 2px;
padding: 1px;
padding: .2em .4em;
margin: 0;
font-size: 85%;
white-space: break-spaces;
background-color: #656c7633;
border-radius: 6px;
}

.message-bubble pre code {
background-color: transparent;
border-radius: 0;
padding: 0;
font-size: 100%;
}

.message-bubble pre{
.message-bubble pre {
color: white;
}


.chat-header-title span,
.chat-header-title span a,
Expand All @@ -560,7 +550,7 @@
height: 30px;
background: linear-gradient(145deg, #3d444d, #0d1117);
border-radius: 50%;
display: none;
display: none;
color: white;
align-items: center;
justify-content: center;
Expand Down Expand Up @@ -722,7 +712,7 @@
.light-theme .chat-list-item:hover,
.sepia-theme .chat-list-item:hover,
.contrast-theme .chat-list-item:hover {
border-color:#007bff;
border-color: #007bff;
}

.chat-list-item button {
Expand Down Expand Up @@ -1187,6 +1177,16 @@
opacity: 1;
}

pre {
font-family: 'Courier New', monospace;
font-size: 14px;
line-height: 1.5;
background-color: #2d2d2d;
color: #f8f8f2;
padding: 10px;
border-radius: 5px;
overflow-x: auto;
}
</style>
</head>

Expand Down Expand Up @@ -1364,6 +1364,13 @@
const fontSizeValue = document.getElementById('font-size-value');
const settingsOverlay = document.getElementById('settings-popup-overlay'); // Get overlay

// Initialize Highlight.js for dynamically added code blocks
function applySyntaxHighlighting() {
const codeBlocks = document.querySelectorAll('pre code');
codeBlocks.forEach((block) => {
hljs.highlightElement(block);
});
}

const scrollDownBtn = document.getElementById('scroll-down-btn');

Expand Down Expand Up @@ -1655,78 +1662,81 @@
isWaitingForResponse = false;
hideTypingIndicator();
});
}// Add copy buttons to code blocks in AI messages
function addCopyButtonsToCodeBlocks(messageDiv) {
const codeBlocks = messageDiv.querySelectorAll('pre code');
codeBlocks.forEach((codeBlock) => {
const preElement = codeBlock.closest('pre');
if (preElement && !preElement.querySelector('.code-copy-button')) {
const copyButton = document.createElement('button');
copyButton.className = 'code-copy-button';
copyButton.title = 'Copy code';
copyButton.innerHTML = '<i class="fas fa-copy"></i>';

copyButton.addEventListener('click', (e) => {
e.stopPropagation();

// Extract only the original code, ignoring any appended output
const code = codeBlock.getAttribute('data-original-code') || codeBlock.textContent.trim();
copyToClipboard(code);

// Visual feedback
copyButton.innerHTML = '<i class="fas fa-check"></i>';
copyButton.style.color = '#4CAF50';
setTimeout(() => {
copyButton.innerHTML = '<i class="fas fa-copy"></i>';
copyButton.style.color = '';
}, 2000);
});

preElement.appendChild(copyButton);
}
});
}

// Add a message to the chat
// Add a message to the chat
// Helper function to copy text to clipboard
function copyToClipboard(text) {
const textarea = document.createElement('textarea');
textarea.value = text;
textarea.style.position = 'fixed'; // Prevent scrolling to the bottom of the page
document.body.appendChild(textarea);
textarea.select();

try {
document.execCommand('copy');
} catch (err) {
console.error('Failed to copy text:', err);
} finally {
document.body.removeChild(textarea);
}
}

// Example usage in the `addMessage` function
function addMessage(text, sender) {
const messageDiv = document.createElement('div');
messageDiv.className = `message ${sender}-message`;

const content = sender === 'ai' ? marked.parse(text) : text;
messageDiv.innerHTML = `<div class="message-bubble">${content}</div>`;

// Add copy buttons to code blocks in AI messages
if (sender === 'ai') {
setTimeout(() => {
applySyntaxHighlighting(); // Apply Highlight.js

// Store the original code in a data attribute before Highlight.js modifies it
const codeBlocks = messageDiv.querySelectorAll('pre code');
codeBlocks.forEach((codeBlock) => {
const preElement = codeBlock.closest('pre');
if (preElement && !preElement.querySelector('.code-copy-button')) {
const copyButton = document.createElement('button');
copyButton.className = 'code-copy-button';
copyButton.title = 'Copy code';
copyButton.innerHTML = '<i class="fas fa-copy"></i>';

copyButton.addEventListener('click', (e) => {
e.stopPropagation();
const code = codeBlock.textContent;
copyToClipboard(code);

// Visual feedback
copyButton.innerHTML = '<i class="fas fa-check"></i>';
copyButton.style.color = '#4CAF50';
setTimeout(() => {
copyButton.innerHTML = '<i class="fas fa-copy"></i>';
copyButton.style.color = '';
}, 2000);
});

preElement.appendChild(copyButton);
}
codeBlock.setAttribute('data-original-code', codeBlock.textContent.trim());
});

addCopyButtonsToCodeBlocks(messageDiv); // Add copy buttons
}, 0);
}

chatMessages.appendChild(messageDiv);
setTimeout(() => messageDiv.classList.add('show'), 10);
chatMessages.scrollTop = chatMessages.scrollHeight;
}

// Helper function to copy text to clipboard (same as before)
function copyToClipboard(text) {
const textarea = document.createElement('textarea');
textarea.value = text;
textarea.style.position = 'fixed';
document.body.appendChild(textarea);
textarea.select();

try {
if (navigator.clipboard) {
navigator.clipboard.writeText(text).catch(err => {
console.error('Clipboard API failed, using fallback', err);
document.execCommand('copy');
});
} else {
document.execCommand('copy');
}
} catch (err) {
console.error('Copy failed:', err);
} finally {
document.body.removeChild(textarea);
}
}

// Show typing indicator
function showTypingIndicator() {
const indicator = document.createElement('div');
Expand Down