Collects barcodes automatically from a table, timestamps them, and provides a viewing interface.
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// ==UserScript==
// @name Barcode Collector
// @namespace http://tampermonkey.net/
// @version 1.2
// @description Collects barcodes automatically from a table, timestamps them, and provides a viewing interface.
// @author Hamad AlShegifi
// @match *://his.kaauh.org/lab/*
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_addStyle
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// --- Configuration ---
const TABLE_BODY_SELECTOR = 'tbody[formarrayname="TubeTypeList"]';
const MENU_INJECTION_SELECTOR = 'span.csi-menu-text[title="Documents"]';
const STORAGE_KEY = 'collectedBarcodes_storage';
// --- State Flags ---
let isTableObserverAttached = false;
let isMenuViewAdded = false;
// --- In-memory cache for duplicate checking ---
const collectedBarcodesThisSession = new Set();
// --- Main Logic ---
// Function to initialize the script and set up observers
function initialize() {
console.log("Barcode Collector: Script started. Looking for elements...");
// Use a MutationObserver to watch for dynamically loaded elements
const observer = new MutationObserver((mutations, obs) => {
const tableBody = document.querySelector(TABLE_BODY_SELECTOR);
const documentsMenu = document.querySelector(MENU_INJECTION_SELECTOR);
// Setup observer for the barcode table
if (tableBody && !isTableObserverAttached) {
console.log("Barcode Collector: Table body found. Attaching observer.");
scanForExistingBarcodes(tableBody); // Scan for any barcodes already on the page
setupTableObserver(tableBody); // Observe for new barcodes being added
isTableObserverAttached = true;
}
// Add the custom menu item
if (documentsMenu && !isMenuViewAdded) {
console.log("Barcode Collector: 'Documents' menu found. Adding custom view menu.");
addMenuView(documentsMenu);
isMenuViewAdded = true;
}
// Stop observing if both elements are found and processed
if (isTableObserverAttached && isMenuViewAdded) {
console.log("Barcode Collector: Initialization complete. Disconnecting observer.");
obs.disconnect();
}
});
observer.observe(document.body, {
childList: true,
subtree: true
});
}
// Scan for barcodes that might already be on the page when the script loads
function scanForExistingBarcodes(tableBody) {
const rows = tableBody.querySelectorAll('tr');
rows.forEach(row => {
const barcodeInput = row.querySelector('input[formcontrolname="Barcode"]');
if (barcodeInput && barcodeInput.value) {
saveBarcode(barcodeInput.value.trim());
}
});
console.log(`Barcode Collector: Scanned and processed ${rows.length} existing rows.`);
}
// Observe the table for newly added rows
function setupTableObserver(tableBody) {
const tableObserver = new MutationObserver((mutations) => {
mutations.forEach(mutation => {
mutation.addedNodes.forEach(node => {
// Ensure we are only looking at element nodes (like TRs)
if (node.nodeType === 1) {
const barcodeInput = node.querySelector('input[formcontrolname="Barcode"]');
if (barcodeInput && barcodeInput.value) {
saveBarcode(barcodeInput.value.trim());
}
}
});
});
});
tableObserver.observe(tableBody, {
childList: true,
subtree: false // We only care about direct children (TRs) being added to the TBODY
});
}
// Function to save a new barcode to storage, with duplicate checking
async function saveBarcode(barcode) {
// Use the session set to prevent saving duplicates from rapid re-renders
if (collectedBarcodesThisSession.has(barcode)) {
return;
}
let barcodes = await GM_getValue(STORAGE_KEY, []);
// Also check persistent storage to be absolutely sure
if (barcodes.some(entry => entry.barcode === barcode)) {
collectedBarcodesThisSession.add(barcode); // Add to session cache to avoid future checks
return;
}
const newEntry = {
count: barcodes.length + 1,
barcode: barcode,
timestamp: new Date().toISOString()
};
barcodes.push(newEntry);
await GM_setValue(STORAGE_KEY, barcodes); // Save the updated array
collectedBarcodesThisSession.add(barcode); // Add to session cache
console.log(`Barcode Collector: Saved new barcode - ${barcode}`);
}
// Function to create and inject the "View Barcodes" menu item
function addMenuView(targetMenuElement) {
// Find the main container of the "Documents" menu item to ensure proper alignment
const documentsContainer = targetMenuElement.closest('csi-main-menu')?.parentElement?.parentElement;
if (!documentsContainer) {
console.error("Barcode Collector: Could not find the main menu item container to inject into. The page structure may have changed.");
return;
}
// Create a new container that is the same type as the one we found.
const newContainer = document.createElement(documentsContainer.tagName);
// Set the inner HTML to replicate the structure of the existing menu items,
// ensuring it has an icon holder and a text wrapper.
newContainer.innerHTML = `
<div class="${documentsContainer.firstElementChild.className}">
<csi-main-menu class="${targetMenuElement.closest('csi-main-menu').className}">
<a style="cursor: pointer;">
<span class="icon-holder csi-menu-icon">
<i class="fa fa-list-ul" aria-hidden="true"></i>
</span>
<div class="csi-menu-text-wrapper">
<span class="csi-menu-text sidemenu-title" title="Collected Barcodes">Collected Barcodes</span>
</div>
</a>
</csi-main-menu>
</div>
`;
// Add a click listener to the `<a>` tag within our newly created element.
newContainer.querySelector('a').addEventListener('click', showBarcodesModal);
// Insert the new menu item into the DOM right after the "Documents" menu item.
documentsContainer.parentNode.insertBefore(newContainer, documentsContainer.nextSibling);
}
// --- Helper Function for Time Formatting ---
function formatTimeSince(isoTimestamp) {
const date = new Date(isoTimestamp);
const now = new Date();
const seconds = Math.floor((now - date) / 1000);
if (seconds < 60) return `${seconds} seconds ago`;
const minutes = Math.floor(seconds / 60);
if (minutes < 60) return `${minutes} minutes ago`;
const hours = Math.floor(minutes / 60);
if (hours < 24) return `${hours} hours ago`;
const days = Math.floor(hours / 24);
return `${days} days ago`;
}
// Function to display the modal with collected barcodes
async function showBarcodesModal() {
const existingModal = document.getElementById('barcode-viewer-modal');
if (existingModal) existingModal.remove();
const barcodes = await GM_getValue(STORAGE_KEY, []);
// Sort by count ascending, so the earliest collected are first
barcodes.sort((a, b) => a.count - b.count);
const modal = document.createElement('div');
modal.id = 'barcode-viewer-modal';
let tableRows = barcodes.map(entry => `
<tr data-barcode-row="${entry.barcode}">
<td>${entry.count}</td>
<td>${entry.barcode}</td>
<td>${new Date(entry.timestamp).toLocaleString()}</td>
<td data-timestamp="${entry.timestamp}">${formatTimeSince(entry.timestamp)}</td>
<td class="action-cell-bc"><span class="delete-barcode-btn" data-barcode="${entry.barcode}" title="Delete this barcode">×</span></td>
</tr>
`).join('');
if (barcodes.length === 0) {
tableRows = '<tr><td colspan="5">No barcodes have been collected yet.</td></tr>';
}
modal.innerHTML = `
<div class="modal-content-bc">
<div class="modal-header-bc">
<h2>Collected Barcodes</h2>
<span class="close-button-bc">×</span>
</div>
<div class="modal-body-bc">
<table>
<thead>
<tr>
<th>Count</th>
<th>Barcode</th>
<th>Timestamp</th>
<th>Time Since Added</th>
<th>Actions</th>
</tr>
</thead>
<tbody>${tableRows}</tbody>
</table>
</div>
<div class="modal-footer-bc">
<button id="clear-barcodes-btn">Clear All Barcodes</button>
</div>
</div>
`;
document.body.appendChild(modal);
// --- Event Listener for Deleting Individual Barcodes ---
const tableBody = modal.querySelector('tbody');
tableBody.addEventListener('click', async function(event) {
if (event.target.classList.contains('delete-barcode-btn')) {
const barcodeToDelete = event.target.dataset.barcode;
await deleteBarcode(barcodeToDelete);
// Refresh the modal content without closing it
const updatedBarcodes = await GM_getValue(STORAGE_KEY, []);
updatedBarcodes.sort((a, b) => a.count - b.count); // Re-sort
let newTableRows = updatedBarcodes.map(entry => `
<tr data-barcode-row="${entry.barcode}">
<td>${entry.count}</td>
<td>${entry.barcode}</td>
<td>${new Date(entry.timestamp).toLocaleString()}</td>
<td data-timestamp="${entry.timestamp}">${formatTimeSince(entry.timestamp)}</td>
<td class="action-cell-bc"><span class="delete-barcode-btn" data-barcode="${entry.barcode}" title="Delete this barcode">×</span></td>
</tr>
`).join('');
if (updatedBarcodes.length === 0) {
newTableRows = '<tr><td colspan="5">No barcodes have been collected yet.</td></tr>';
}
tableBody.innerHTML = newTableRows;
}
});
// Auto-update the "Time Since Added" column every 5 seconds
const timeSinceInterval = setInterval(() => {
modal.querySelectorAll('td[data-timestamp]').forEach(cell => {
cell.textContent = formatTimeSince(cell.dataset.timestamp);
});
}, 5000);
modal.querySelector('.close-button-bc').addEventListener('click', () => {
clearInterval(timeSinceInterval); // Stop the auto-update
modal.remove();
});
const clearButton = modal.querySelector('#clear-barcodes-btn');
clearButton.addEventListener('click', () => {
clearInterval(timeSinceInterval); // Stop the auto-update
showClearConfirmation(modal);
});
}
// --- New Function to Delete a Single Barcode ---
async function deleteBarcode(barcodeToDelete) {
let barcodes = await GM_getValue(STORAGE_KEY, []);
// Filter out the barcode to delete
let updatedBarcodes = barcodes.filter(entry => entry.barcode !== barcodeToDelete);
// Re-calculate the 'count' for the remaining items
updatedBarcodes.forEach((entry, index) => {
entry.count = index + 1;
});
await GM_setValue(STORAGE_KEY, updatedBarcodes);
console.log(`Barcode Collector: Deleted barcode - ${barcodeToDelete}`);
}
// Function to show a confirmation dialog inside the modal
function showClearConfirmation(modal) {
const modalBody = modal.querySelector('.modal-body-bc');
const modalFooter = modal.querySelector('.modal-footer-bc');
modalBody.innerHTML = `
<p class="confirm-text-bc">
Are you sure you want to delete all collected barcodes?<br>This action cannot be undone.
</p>`;
modalFooter.innerHTML = `
<button id="confirm-clear-btn" class="modal-btn-bc confirm-btn-bc">Yes, Clear All</button>
<button id="cancel-clear-btn" class="modal-btn-bc cancel-btn-bc">Cancel</button>`;
modal.querySelector('#confirm-clear-btn').addEventListener('click', async () => {
await GM_setValue(STORAGE_KEY, []);
modal.remove();
showBarcodesModal();
});
modal.querySelector('#cancel-clear-btn').addEventListener('click', () => {
modal.remove();
showBarcodesModal();
});
}
// --- Styling for the Modal ---
GM_addStyle(`
#barcode-viewer-modal {
position: fixed; z-index: 10000; left: 0; top: 0; width: 100%; height: 100%;
background-color: rgba(0, 0, 0, 0.5); display: flex; align-items: center; justify-content: center;
font-family: Arial, sans-serif;
}
.modal-content-bc {
background-color: #fefefe; border-radius: 8px; box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
width: 80%; max-width: 600px; max-height: 80vh; display: flex; flex-direction: column;
}
.modal-header-bc {
padding: 10px 16px; background-color: #5c6bc0; color: white; border-top-left-radius: 8px;
border-top-right-radius: 8px; display: flex; justify-content: space-between; align-items: center;
}
.modal-header-bc h2 { margin: 0; font-size: 1.25em; }
.close-button-bc { color: #fff; font-size: 28px; font-weight: bold; cursor: pointer; }
.close-button-bc:hover { color: #f1f1f1; }
.modal-body-bc { padding: 16px; overflow-y: auto; }
.modal-body-bc table { width: 100%; border-collapse: collapse; }
.modal-body-bc th, .modal-body-bc td { border: 1px solid #ddd; padding: 8px; text-align: left; }
.modal-body-bc th { background-color: #f2f2f2; }
.modal-footer-bc {
padding: 10px 16px; text-align: right; border-top: 1px solid #ddd;
display: flex; justify-content: flex-end; gap: 10px;
}
#clear-barcodes-btn {
background-color: #ef5350; color: white; border: none; padding: 10px 15px;
border-radius: 5px; cursor: pointer; font-weight: bold;
}
#clear-barcodes-btn:hover { background-color: #d32f2f; }
.confirm-text-bc { text-align: center; font-size: 1.1em; margin: 20px; }
.modal-btn-bc { border: none; padding: 10px 15px; border-radius: 5px; cursor: pointer; font-weight: bold; }
.confirm-btn-bc { background-color: #ef5350; color: white; }
.confirm-btn-bc:hover { background-color: #d32f2f; }
.cancel-btn-bc { background-color: #e0e0e0; color: #333; }
.cancel-btn-bc:hover { background-color: #bdbdbd; }
.action-cell-bc { text-align: center !important; }
.delete-barcode-btn {
cursor: pointer;
font-weight: bold;
font-size: 20px;
color: #ef5350;
padding: 0 5px;
border-radius: 4px;
}
.delete-barcode-btn:hover {
color: white;
background-color: #d32f2f;
}
`);
// --- Start the script ---
initialize();
})();