Add callsign label clearing to map updates

Introduced clearCallsignLabels() to remove callsign labels when map data is refreshed or markers are removed. Ensures label state is reset and UI button appearance is updated, preventing stale labels from persisting after data changes.

application/views/map/custom_date.php

@@ -433,6 +433,28 @@ function toggleFullscreen() {
 let callsignLabelsVisible = false;
 let callsignLabels = [];
 
+function clearCallsignLabels() {
+    // Remove all existing callsign labels from the map
+    callsignLabels.forEach(function(labelMarker) {
+        if (map.hasLayer(labelMarker)) {
+            map.removeLayer(labelMarker);
+        }
+    });
+    
+    // Clear the labels array
+    callsignLabels = [];
+    
+    // Reset the visibility state
+    callsignLabelsVisible = false;
+    
+    // Reset button appearance
+    const button = document.getElementById('callsign-labels-btn');
+    if (button) {
+        button.classList.remove('btn-success');
+        button.classList.add('btn-outline-success');
+    }
+}
+
 function toggleCallsignLabels() {
     const button = document.getElementById('callsign-labels-btn');
     
@@ -518,11 +540,14 @@ function updateMapStatistics(plotjson) {
             }, 3000);
         }
         
+        // Handle callsign labels when new data is loaded
+        const labelsWereVisible = callsignLabelsVisible;
+        
+        // Clear any existing callsign labels before processing new data
+        clearCallsignLabels();
+        
         // Reapply callsign labels if they were previously enabled
-        if (callsignLabelsVisible) {
-            // Reset state and toggle to reapply labels to new markers
-            callsignLabelsVisible = false;
-            callsignLabels = [];
+        if (labelsWereVisible) {
             setTimeout(() => {
                 toggleCallsignLabels();
             }, 100); // Small delay to ensure markers are fully rendered

assets/js/leaflet/leafembed.js

@@ -124,4 +124,9 @@ function removeMarkers() {
 		map.removeLayer(plotlayers[i]);
 	}
 	plotlayers=[];
+	
+	// Clear callsign labels if the function exists (for custom map page)
+	if (typeof clearCallsignLabels === 'function') {
+		clearCallsignLabels();
+	}
 }