For #27346 - Disable swiping to switch tabs when fullscreen

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -1370,6 +1370,7 @@ abstract class BaseBrowserFragment :
                 .setText(getString(R.string.full_screen_notification))
                 .show()
             activity?.enterToImmersiveMode()
+            (view as? SwipeGestureLayout)?.isSwipeEnabled = false
             browserToolbarView.collapse()
             browserToolbarView.view.isVisible = false
             val browserEngine = binding.swipeRefresh.layoutParams as CoordinatorLayout.LayoutParams
@@ -1384,6 +1385,7 @@ abstract class BaseBrowserFragment :
             MediaState.fullscreen.record(NoExtras())
         } else {
             activity?.exitImmersiveMode()
+            (view as? SwipeGestureLayout)?.isSwipeEnabled = true
             (activity as? HomeActivity)?.let { activity ->
                 activity.themeManager.applyStatusBarTheme(activity)
             }

app/src/main/java/org/mozilla/fenix/browser/SwipeGestureLayout.kt

@@ -56,6 +56,11 @@ class SwipeGestureLayout @JvmOverloads constructor(
     defStyleAttr: Int = 0,
 ) : FrameLayout(context, attrs, defStyleAttr) {
 
+    /**
+     * Controls whether the swiping functionality is active or not.
+     */
+    var isSwipeEnabled = true
+
     private val gestureListener = object : GestureDetector.SimpleOnGestureListener() {
         override fun onDown(e: MotionEvent): Boolean {
             return true
@@ -107,6 +112,10 @@ class SwipeGestureLayout @JvmOverloads constructor(
     }
 
     override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
+        if (!isSwipeEnabled) {
+            return false
+        }
+
         return when (event.actionMasked) {
             MotionEvent.ACTION_DOWN -> {
                 handledInitialScroll = false