fix: WSPR plugin v1.4.1 - Critical bug fixes

🐛 Fixed Issues:
- CTRL+Drag Required: Panels now require holding CTRL key to drag
  * Cursor changes to 'grab' hand when CTRL is held
  * Prevents accidental moves when using dropdowns/sliders
  * Visual feedback with tooltip 'Hold CTRL and drag to reposition'
  * Default cursor when CTRL not pressed

- Persistent Panel Positions: Positions correctly saved and restored
  * Panel positions persist when toggling plugin off/on
  * Each panel has independent localStorage key
  * Positions restored from localStorage on plugin enable
  * Positions saved on drag end

- Proper Cleanup on Disable: All controls removed when plugin disabled
  * Fixed 'WSPR Activity' popup remaining after disable
  * Fixed multiple popup spawning bug
  * All controls properly cleaned up: filterControl, statsControl, legendControl, chartControl, heatmapLayer
  * Added console logging for debugging cleanup process
  * Controls only created when enabled=true

🔧 Technical Changes:
- Updated makeDraggable() function with CTRL key detection
- Added keydown/keyup listeners for CTRL key state
- Updated cursor dynamically based on CTRL key state
- Enhanced cleanup useEffect with individual control removal
- Added proper state reset for all controls
- Fixed control recreation logic to prevent duplicates

📝 Documentation:
- Updated README.md with v1.4.1 fixes
- Added CTRL+Drag usage instructions
- Documented persistent position behavior
- Added cleanup behavior notes

Version: 1.3.0 → 1.4.1

src/plugins/layers/useWSPR.js

@@ -1,7 +1,7 @@
 import { useState, useEffect, useRef } from 'react';
 
 /**
- * WSPR Propagation Heatmap Plugin v1.3.0
+ * WSPR Propagation Heatmap Plugin v1.4.1
  * 
  * Advanced Features:
  * - Great circle curved path lines between transmitters and receivers
@@ -10,10 +10,13 @@ import { useState, useEffect, useRef } from 'react';
  * - Band selector dropdown (v1.2.0)
  * - Time range slider (15min - 6hr) (v1.2.0)
  * - SNR threshold filter (v1.2.0)
- * - Hot spot density heatmap (v1.3.0)
+ * - Hot spot density heatmap (v1.4.0)
  * - Band activity chart (v1.3.0)
  * - Propagation score indicator (v1.3.0)
  * - Best DX paths highlighting (v1.3.0)
+ * - Draggable control panels with CTRL+drag (v1.4.0)
+ * - Persistent panel positions (v1.4.1)
+ * - Proper cleanup on disable (v1.4.1)
  * - Statistics display (total stations, spots)
  * - Signal strength legend
  * 
@@ -29,7 +32,7 @@ export const metadata = {
   category: 'propagation',
   defaultEnabled: false,
   defaultOpacity: 0.7,
-  version: '1.3.0'
+  version: '1.4.1'
 };
 
 // Convert grid square to lat/lon
@@ -151,7 +154,7 @@ function calculatePropagationScore(spots) {
   return Math.round(snrScore + countScore + strongScore);
 }
 
-// Make control panel draggable and save position
+// Make control panel draggable with CTRL+drag and save position
 function makeDraggable(element, storageKey) {
   if (!element) return;
   
@@ -176,14 +179,34 @@ function makeDraggable(element, storageKey) {
     element.style.bottom = 'auto';
   }
   
-  // Add drag handle
-  element.style.cursor = 'move';
-  element.title = 'Drag to reposition';
+  // Add drag hint
+  element.title = 'Hold CTRL and drag to reposition';
   
   let isDragging = false;
   let startX, startY, startLeft, startTop;
   
+  // Update cursor based on CTRL key
+  const updateCursor = (e) => {
+    if (e.ctrlKey) {
+      element.style.cursor = 'grab';
+    } else {
+      element.style.cursor = 'default';
+    }
+  };
+  
+  element.addEventListener('mouseenter', updateCursor);
+  element.addEventListener('mousemove', updateCursor);
+  document.addEventListener('keydown', (e) => {
+    if (e.key === 'Control') updateCursor(e);
+  });
+  document.addEventListener('keyup', (e) => {
+    if (e.key === 'Control') updateCursor(e);
+  });
+  
   element.addEventListener('mousedown', function(e) {
+    // Only allow dragging with CTRL key
+    if (!e.ctrlKey) return;
+    
     // Only allow dragging from empty areas (not inputs/selects)
     if (e.target.tagName === 'SELECT' || e.target.tagName === 'INPUT' || e.target.tagName === 'LABEL') {
       return;
@@ -195,6 +218,7 @@ function makeDraggable(element, storageKey) {
     startLeft = element.offsetLeft;
     startTop = element.offsetTop;
     
+    element.style.cursor = 'grabbing';
     element.style.opacity = '0.8';
     e.preventDefault();
   });
@@ -213,6 +237,7 @@ function makeDraggable(element, storageKey) {
     if (isDragging) {
       isDragging = false;
       element.style.opacity = '1';
+      updateCursor(e);
       
       // Save position
       const position = {
@@ -517,12 +542,11 @@ export function useLayer({ enabled = false, opacity = 0.7, map = null }) {
     setPathLayers(newPaths);
     setMarkerLayers(newMarkers);
     
-    // Update statistics control
+    // Update statistics control - only create once
     if (statsControl && map) {
       try {
         map.removeControl(statsControl);
       } catch (e) {}
-      setStatsControl(null);
     }
     
     const StatsControl = L.Control.extend({
@@ -559,18 +583,25 @@ export function useLayer({ enabled = false, opacity = 0.7, map = null }) {
       }
     });
     
-    const stats = new StatsControl();
-    map.addControl(stats);
-    setStatsControl(stats);
+    // Only add stats control if enabled
+    if (enabled) {
+      const stats = new StatsControl();
+      map.addControl(stats);
+      setStatsControl(stats);
+    }
     
-    // Make stats draggable
-    setTimeout(() => {
-      const container = document.querySelector('.wspr-stats');
-      if (container) makeDraggable(container, 'wspr-stats-position');
-    }, 150);
+    // Make stats draggable - only if enabled
+    if (enabled) {
+      setTimeout(() => {
+        const container = document.querySelector('.wspr-stats');
+        if (container) {
+          makeDraggable(container, 'wspr-stats-position');
+        }
+      }, 150);
+    }
     
-    // Add legend
-    if (!legendControl && map) {
+    // Add legend - only once and only if enabled
+    if (!legendControl && map && enabled) {
       const LegendControl = L.Control.extend({
         options: { position: 'bottomright' },
         onAdd: function() {
@@ -609,8 +640,8 @@ export function useLayer({ enabled = false, opacity = 0.7, map = null }) {
       }, 150);
     }
     
-    // Add band activity chart
-    if (!chartControl && map && limitedData.length > 0) {
+    // Add band activity chart - only once and only if enabled
+    if (!chartControl && map && limitedData.length > 0 && enabled) {
       const bandCounts = {};
       limitedData.forEach(spot => {
         const band = spot.band || 'Unknown';
@@ -784,23 +815,77 @@ export function useLayer({ enabled = false, opacity = 0.7, map = null }) {
     };
   }, [enabled, showHeatmap, wsprData, map, opacity, snrThreshold, heatmapLayer]);
 
-  // Cleanup controls on disable
+  // Cleanup controls on disable - FIX: properly remove all controls and layers
   useEffect(() => {
     if (!enabled && map) {
-      [filterControl, legendControl, statsControl, chartControl, heatmapLayer].forEach(control => {
-        if (control) {
-          try {
-            map.removeControl(control);
-          } catch (e) {}
+      console.log('[WSPR] Plugin disabled - cleaning up all controls and layers');
+      
+      // Remove filter control
+      if (filterControl) {
+        try {
+          map.removeControl(filterControl);
+          console.log('[WSPR] Removed filter control');
+        } catch (e) {
+          console.error('[WSPR] Error removing filter control:', e);
+        }
+        setFilterControl(null);
+      }
+      
+      // Remove legend control
+      if (legendControl) {
+        try {
+          map.removeControl(legendControl);
+          console.log('[WSPR] Removed legend control');
+        } catch (e) {
+          console.error('[WSPR] Error removing legend control:', e);
+        }
+        setLegendControl(null);
+      }
+      
+      // Remove stats control
+      if (statsControl) {
+        try {
+          map.removeControl(statsControl);
+          console.log('[WSPR] Removed stats control');
+        } catch (e) {
+          console.error('[WSPR] Error removing stats control:', e);
         }
+        setStatsControl(null);
+      }
+      
+      // Remove chart control
+      if (chartControl) {
+        try {
+          map.removeControl(chartControl);
+          console.log('[WSPR] Removed chart control');
+        } catch (e) {
+          console.error('[WSPR] Error removing chart control:', e);
+        }
+        setChartControl(null);
+      }
+      
+      // Remove heatmap layer
+      if (heatmapLayer) {
+        try {
+          map.removeLayer(heatmapLayer);
+          console.log('[WSPR] Removed heatmap layer');
+        } catch (e) {
+          console.error('[WSPR] Error removing heatmap layer:', e);
+        }
+        setHeatmapLayer(null);
+      }
+      
+      // Clear all paths and markers
+      pathLayers.forEach(layer => {
+        try { map.removeLayer(layer); } catch (e) {}
       });
-      setFilterControl(null);
-      setLegendControl(null);
-      setStatsControl(null);
-      setChartControl(null);
-      setHeatmapLayer(null);
+      markerLayers.forEach(layer => {
+        try { map.removeLayer(layer); } catch (e) {}
+      });
+      setPathLayers([]);
+      setMarkerLayers([]);
     }
-  }, [enabled, map, filterControl, legendControl, statsControl, chartControl, heatmapLayer]);
+  }, [enabled, map, filterControl, legendControl, statsControl, chartControl, heatmapLayer, pathLayers, markerLayers]);
 
   // Update opacity
   useEffect(() => {

src/plugins/layers/wspr/README.md

@@ -1,10 +1,10 @@
 # WSPR Propagation Heatmap Plugin
 
-**Version:** 1.3.0  
+**Version:** 1.4.1  
 **Category:** Propagation  
 **Icon:** 📡  
 **Author:** OpenHamClock Contributors  
-**Last Updated:** 2026-02-03 (v1.3.0 Release)
+**Last Updated:** 2026-02-03 (v1.4.1 Bug Fix Release)
 
 ---
 
@@ -14,7 +14,43 @@ The WSPR (Weak Signal Propagation Reporter) Heatmap Plugin provides real-time vi
 
 ## Features Implemented
 
-### ✅ v1.3.0 - Advanced Analytics & Filtering (Latest)
+### ✅ v1.4.1 - Bug Fixes (Latest)
+
+#### **Fixed Issues**
+- **CTRL+Drag to Move**: Panels now require holding CTRL key while dragging
+  - Cursor changes to "grab" hand when CTRL is held
+  - Prevents accidental moves when using dropdowns/sliders
+  - Visual feedback with "Hold CTRL and drag to reposition" tooltip
+- **Persistent Panel Positions**: Positions now saved and restored correctly
+  - Panel positions persist when toggling plugin off/on
+  - Each panel has independent localStorage key
+  - Positions restored on next plugin enable
+- **Proper Cleanup on Disable**: All controls removed when plugin is disabled
+  - Fixed "WSPR Activity" popup remaining after disable
+  - Fixed multiple popup spawning issue
+  - All controls properly cleaned up: filters, stats, legend, chart, heatmap
+  - Console logging for debugging cleanup process
+
+### ✅ v1.4.0 - Interactive Heatmap & Draggable Panels
+
+#### **Draggable Control Panels**
+- All control panels can be repositioned by holding CTRL and dragging
+- Panel positions saved to localStorage
+- Positions persist across browser sessions
+- Independent position for each panel (filters, stats, legend, chart)
+
+#### **Working Heatmap Visualization**
+- Toggle heatmap view with checkbox in filter panel
+- Density-based hot spot visualization
+- Color-coded by activity level:
+  - 🔴 Red: Very high activity
+  - 🟠 Orange: High activity
+  - 🟡 Yellow: Moderate activity
+  - 🔵 Blue: Low activity
+- Click hot spots to see station count and coordinates
+- Radius scales with activity intensity
+
+### ✅ v1.3.0 - Advanced Analytics & Filtering
 
 #### **Advanced Filter Controls (v1.2.0)**
 - **Band Selector Dropdown**: Filter by specific bands (160m-6m)