minor system gesture insets handling improvements

lib/widgets/common/basic/insets.dart

@@ -1,5 +1,3 @@
-import 'dart:math';
-
 import 'package:aves/widgets/common/extensions/media_query.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
@@ -13,21 +11,48 @@ class BottomGestureAreaProtector extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Selector<MediaQueryData, double>(
-      selector: (context, mq) => mq.systemGestureInsets.bottom,
-      builder: (context, systemGestureBottom, child) {
     return Positioned(
       left: 0,
       right: 0,
       bottom: 0,
-          height: systemGestureBottom,
+      height: context.select<MediaQueryData, double>((mq) => mq.systemGestureInsets.bottom),
       child: GestureDetector(
         // absorb vertical gestures only
         onVerticalDragDown: (details) {},
         behavior: HitTestBehavior.translucent,
       ),
     );
-      },
+  }
+}
+
+// It will prevent the body from scrolling when a user swipe from edges to use Android Q style navigation gestures.
+class SideGestureAreaProtector extends StatelessWidget {
+  const SideGestureAreaProtector({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Positioned.fill(
+      child: Row(
+        children: [
+          SizedBox(
+            width: context.select<MediaQueryData, double>((mq) => mq.systemGestureInsets.left),
+            child: GestureDetector(
+              // absorb horizontal gestures only
+              onHorizontalDragDown: (details) {},
+              behavior: HitTestBehavior.translucent,
+            ),
+          ),
+          const Spacer(),
+          SizedBox(
+            width: context.select<MediaQueryData, double>((mq) => mq.systemGestureInsets.right),
+            child: GestureDetector(
+              // absorb horizontal gestures only
+              onHorizontalDragDown: (details) {},
+              behavior: HitTestBehavior.translucent,
+            ),
+          ),
+        ],
+      ),
     );
   }
 }
@@ -58,7 +83,7 @@ class BottomPaddingSliver extends StatelessWidget {
   Widget build(BuildContext context) {
     return SliverToBoxAdapter(
       child: Selector<MediaQueryData, double>(
-        selector: (context, mq) => max(mq.effectiveBottomPadding, mq.systemGestureInsets.bottom),
+        selector: (context, mq) => mq.effectiveBottomPadding,
         builder: (context, mqPaddingBottom, child) {
           return SizedBox(height: mqPaddingBottom);
         },

lib/widgets/viewer/entry_viewer_stack.dart

@@ -214,6 +214,7 @@ class _EntryViewerStackState extends State<EntryViewerStack> with FeedbackMixin,
                 ),
                 _buildTopOverlay(),
                 _buildBottomOverlay(),
+                const SideGestureAreaProtector(),
                 const BottomGestureAreaProtector(),
               ],
             ),