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Adds a button to copy tables to the clipboard in HTML format for pasting into Word with full borders.
// ==UserScript==
// @name Copy table
// @namespace http://tampermonkey.net/
// @version 1.0
// @description Adds a button to copy tables to the clipboard in HTML format for pasting into Word with full borders.
// @author Bui Quoc Dung
// @match *://*/*
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
// Add some CSS for the copy button
GM_addStyle(`
.copy-table-btn {
margin-top: 5px;
padding: 5px 10px;
font-size: 13px;
background: #333333;
color: white;
border: none;
border-radius: 3px;
cursor: pointer;
}
`);
// Function to add the "Copy to Word" button below a table element
function addCopyButtonToTable(table) {
// Avoid adding duplicate buttons
if (table.nextElementSibling && table.nextElementSibling.classList.contains('copy-table-btn')) {
return;
}
// Ensure all table cells have borders
table.style.borderCollapse = 'collapse';
table.querySelectorAll('th, td').forEach(cell => {
cell.style.border = '1px solid black';
cell.style.padding = '4px';
});
// Create the button element
const btn = document.createElement('button');
btn.textContent = 'Copy';
btn.className = 'copy-table-btn';
btn.addEventListener('click', function(e) {
e.stopPropagation();
e.preventDefault();
copyTableToClipboard(table);
});
// Insert button after the table
table.parentElement.insertBefore(btn, table.nextSibling);
}
// Function that copies the table's HTML to the clipboard
function copyTableToClipboard(table) {
const html = table.outerHTML;
// Try using the Clipboard API with HTML support
if (navigator.clipboard && navigator.clipboard.write) {
const type = "text/html";
const blob = new Blob([html], { type: type });
const data = [new ClipboardItem({ [type]: blob })];
navigator.clipboard.write(data).catch(err => {
console.error('Error copying table: ', err);
fallbackCopy(html);
});
} else {
fallbackCopy(html);
}
}
// Fallback copy function using a temporary element and execCommand
function fallbackCopy(html) {
const tempDiv = document.createElement('div');
tempDiv.style.position = 'absolute';
tempDiv.style.left = '-9999px';
tempDiv.innerHTML = html;
document.body.appendChild(tempDiv);
const range = document.createRange();
range.selectNodeContents(tempDiv);
const sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
try {
document.execCommand('copy');
} catch (err) {
console.error('Fallback: Unable to copy', err);
}
sel.removeAllRanges();
document.body.removeChild(tempDiv);
}
// Observe the document for new tables (for dynamically loaded content)
const observer = new MutationObserver(mutations => {
mutations.forEach(mutation => {
mutation.addedNodes.forEach(node => {
if (node.nodeType === 1) { // ELEMENT_NODE
if (node.tagName === 'TABLE') {
addCopyButtonToTable(node);
} else {
const tables = node.querySelectorAll('table');
tables.forEach(addCopyButtonToTable);
}
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
// Initially add buttons to any tables already on the page
document.querySelectorAll('table').forEach(addCopyButtonToTable);
})();