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#116 - Share Highlighted Text Links v0.1
Allow users to highlight text and share the link with others!
View demo projectView demo
<!-- 💙 MEMBERSCRIPT #116 v0.1 💙 - SHARE HIGHLIGHTED TEXT LINKS -->
<script>
// Function to encode text and position for URL
function encodeSelection(text, nodeIndex, textOffset) {
return btoa(encodeURIComponent(JSON.stringify({ text, nodeIndex, textOffset })));
}
// Function to decode selection from URL
function decodeSelection(encoded) {
try {
return JSON.parse(decodeURIComponent(atob(encoded)));
} catch (e) {
// If parsing fails, assume it's just the text in the old format
return { text: decodeURIComponent(atob(encoded)) };
}
}
// Function to remove existing highlight
function removeExistingHighlight() {
const existingHighlight = document.querySelector('.ms-highlight');
if (existingHighlight) {
const parent = existingHighlight.parentNode;
parent.replaceChild(document.createTextNode(existingHighlight.textContent), existingHighlight);
parent.normalize(); // Merge adjacent text nodes
}
}
// Function to handle text selection
function handleSelection() {
const selection = window.getSelection();
if (selection.toString().length > 0) {
removeExistingHighlight();
const range = selection.getRangeAt(0);
const selectedText = selection.toString();
const textNodes = getAllTextNodes(document.body);
const nodeIndex = textNodes.indexOf(range.startContainer);
const textOffset = range.startOffset;
// Create a unique identifier for the selection
const selectionId = encodeSelection(selectedText, nodeIndex, textOffset);
// Update URL with the selection parameter
const url = new URL(window.location);
url.searchParams.set('highlight', selectionId);
window.history.pushState({}, '', url);
// Highlight the selected text
highlightText(selectionId, range);
}
}
// Function to highlight text
function highlightText(selectionId, range) {
const span = document.createElement('span');
span.className = 'ms-highlight';
span.id = selectionId;
range.surroundContents(span);
}
// Function to highlight and scroll to text based on URL parameter
function highlightFromURL() {
removeExistingHighlight();
const url = new URL(window.location);
const highlightId = url.searchParams.get('highlight');
if (highlightId) {
const { text, nodeIndex, textOffset } = decodeSelection(highlightId);
const textNodes = getAllTextNodes(document.body);
if (nodeIndex !== undefined && textOffset !== undefined) {
// Use precise location if available
if (nodeIndex < textNodes.length) {
const node = textNodes[nodeIndex];
if (node.textContent.substr(textOffset, text.length) === text) {
const range = document.createRange();
range.setStart(node, textOffset);
range.setEnd(node, textOffset + text.length);
highlightText(highlightId, range);
}
}
} else {
// Fall back to searching for the first occurrence of the text
for (let node of textNodes) {
const index = node.textContent.indexOf(text);
if (index !== -1) {
const range = document.createRange();
range.setStart(node, index);
range.setEnd(node, index + text.length);
highlightText(highlightId, range);
break;
}
}
}
const highlightedSpan = document.getElementById(highlightId);
if (highlightedSpan) {
highlightedSpan.scrollIntoView({ behavior: 'smooth', block: 'center' });
}
}
}
// Helper function to get all text nodes
function getAllTextNodes(element) {
const textNodes = [];
const walk = document.createTreeWalker(element, NodeFilter.SHOW_TEXT, null, false);
let node;
while (node = walk.nextNode()) {
textNodes.push(node);
}
return textNodes;
}
// Add event listener for text selection
document.addEventListener('mouseup', handleSelection);
// Call highlightFromURL when the page loads
window.addEventListener('load', highlightFromURL);
</script>
Creating the Make.com Scenario
1. Download the JSON blueprint below to get stated.
2. Navigate to Make.com and Create a New Scenario...
3. Click the small box with 3 dots and then Import Blueprint...
4. Upload your file and voila! You're ready to link your own accounts.
Need help with this MemberScript?
All Memberstack customers can ask for assistance in the 2.0 Slack. Please note that these are not official features and support cannot be guaranteed.
Join the 2.0 SlackVersion notes
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