Fixed iPad swipe down gesture to exit fullscreen

static/css/attendance_fullscreen.css

@@ -362,3 +362,31 @@ body.fullscreen-active .main-wrapper {
     transition: none !important;
   }
 }
+
+/* Prevent pull-to-refresh and overscroll on touch devices in fullscreen */
+.fullscreen-mode {
+  overscroll-behavior: none;
+  -webkit-overflow-scrolling: touch;
+}
+
+body.fullscreen-active {
+  overscroll-behavior: none;
+  position: fixed;
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+}
+
+/* Ensure content is scrollable within fullscreen container */
+.fullscreen-mode {
+  overflow-y: auto;
+  overflow-x: hidden;
+  -webkit-overflow-scrolling: touch;
+}
+
+/* Prevent iOS Safari bounce effect */
+.fullscreen-mode,
+.fullscreen-mode * {
+  -webkit-transform: translateZ(0);
+  transform: translateZ(0);
+}

static/js/attendance_fullscreen.js

@@ -50,7 +50,13 @@ function enterFullscreen(container, icon, body) {
     button.setAttribute('title', 'Exit Fullscreen');
   }
 
-  // Try to use native fullscreen API if available
+  // Detect if device is touch-enabled (iPad/tablet)
+  const isTouchDevice = 'ontouchstart' in window || navigator.maxTouchPoints > 0;
+  
+  // Only use native fullscreen API on non-touch devices
+  // This prevents swipe-down gesture from exiting fullscreen on iPad
+  if (!isTouchDevice) {
+    // Try to use native fullscreen API for desktop browsers
     if (container.requestFullscreen) {
       container.requestFullscreen().catch(err => {
         console.log('Native fullscreen not available, using CSS fullscreen');
@@ -68,12 +74,18 @@ function enterFullscreen(container, icon, body) {
         console.log('Native fullscreen not available, using CSS fullscreen');
       });
     }
+  } else {
+    console.log('Touch device detected - using CSS-only fullscreen to prevent swipe-down exit');
+  }
 
   // Adjust table layout for better viewing
   adjustTableForFullscreen(true);
 
   // Save fullscreen preference
   saveFullscreenPreference(true);
+  
+  // Prevent default touch behaviors that might interfere
+  preventSwipeGestures(container, true);
 }
 
 /**
@@ -94,7 +106,10 @@ function exitFullscreen(container, icon, body) {
     button.setAttribute('title', 'Toggle Fullscreen');
   }
 
-  // Exit native fullscreen if active
+  // Exit native fullscreen if active (only for desktop)
+  const isTouchDevice = 'ontouchstart' in window || navigator.maxTouchPoints > 0;
+  
+  if (!isTouchDevice) {
     if (document.exitFullscreen) {
       document.exitFullscreen().catch(err => {
         console.log('Native fullscreen exit not needed');
@@ -112,12 +127,90 @@ function exitFullscreen(container, icon, body) {
         console.log('Native fullscreen exit not needed');
       });
     }
+  }
+
+  /**
+ * Prevent swipe gestures from interfering with fullscreen on touch devices
+ */
+function preventSwipeGestures(container, enable) {
+  if (enable) {
+    // Prevent pull-to-refresh and other touch gestures
+    container.addEventListener('touchstart', handleTouchStart, { passive: false });
+    container.addEventListener('touchmove', handleTouchMove, { passive: false });
+    container.addEventListener('touchend', handleTouchEnd, { passive: false });
+    
+    // Prevent overscroll
+    document.body.style.overscrollBehavior = 'none';
+    container.style.overscrollBehavior = 'none';
+    
+    console.log('Swipe gestures prevented for fullscreen mode');
+  } else {
+    // Re-enable normal touch behavior
+    container.removeEventListener('touchstart', handleTouchStart);
+    container.removeEventListener('touchmove', handleTouchMove);
+    container.removeEventListener('touchend', handleTouchEnd);
+    
+    // Restore overscroll
+    document.body.style.overscrollBehavior = '';
+    container.style.overscrollBehavior = '';
+    
+    console.log('Swipe gestures re-enabled');
+  }
+}
+
+// Touch event handlers
+let touchStartY = 0;
+let touchStartX = 0;
+
+function handleTouchStart(e) {
+  touchStartY = e.touches[0].clientY;
+  touchStartX = e.touches[0].clientX;
+}
+
+function handleTouchMove(e) {
+  if (!isFullscreen) return;
+  
+  const touchY = e.touches[0].clientY;
+  const touchX = e.touches[0].clientX;
+  const deltaY = touchY - touchStartY;
+  const deltaX = touchX - touchStartX;
+  
+  const container = document.getElementById('attendanceReportContainer');
+  const scrollTop = container.scrollTop;
+  const scrollHeight = container.scrollHeight;
+  const clientHeight = container.clientHeight;
+  const isAtTop = scrollTop === 0;
+  const isAtBottom = scrollTop + clientHeight >= scrollHeight - 1;
+  
+  // Prevent pull-down-to-refresh when at top
+  if (isAtTop && deltaY > 0) {
+    e.preventDefault();
+    return false;
+  }
+  
+  // Prevent overscroll at bottom
+  if (isAtBottom && deltaY < 0) {
+    e.preventDefault();
+    return false;
+  }
+  
+  // Allow normal scrolling within the container
+  // Don't prevent default for vertical scrolling when not at boundaries
+}
+
+function handleTouchEnd(e) {
+  touchStartY = 0;
+  touchStartX = 0;
+}
 
   // Restore table layout
   adjustTableForFullscreen(false);
 
   // Save fullscreen preference
   saveFullscreenPreference(false);
+  
+  // Re-enable default touch behaviors
+  preventSwipeGestures(container, false);
 }
 
 /**
@@ -194,9 +287,15 @@ function logFullscreenAction(action) {
 }
 
 /**
- * Handle native fullscreen change events
+ * Handle native fullscreen change events (only for desktop)
  */
 function handleFullscreenChange() {
+  // Skip handling on touch devices since we're not using native fullscreen there
+  const isTouchDevice = 'ontouchstart' in window || navigator.maxTouchPoints > 0;
+  if (isTouchDevice) {
+    return;
+  }
+  
   const isNativeFullscreen = !!(
     document.fullscreenElement ||
     document.webkitFullscreenElement ||
@@ -204,7 +303,7 @@ function handleFullscreenChange() {
     document.msFullscreenElement
   );
 
-  // Sync our state with native fullscreen
+  // Sync our state with native fullscreen (desktop only)
   if (!isNativeFullscreen && isFullscreen) {
     // User exited native fullscreen, update our state
     const container = document.getElementById('attendanceReportContainer');