From 9c61857f9de965b47c0ef1f1d29e8ea2dd146dd6 Mon Sep 17 00:00:00 2001
From: Thibault Deckers <thibault.deckers@gmail.com>
Date: Tue, 19 Jul 2022 15:19:34 +0200
Subject: [PATCH] #281 viewer: block user swipes from the top status bar
 gesture insets

---
 lib/widgets/common/basic/insets.dart       | 20 ++++++++++++++++++++
 lib/widgets/viewer/entry_viewer_stack.dart |  1 +
 lib/widgets/viewer/panorama_page.dart      |  2 ++
 lib/widgets/wallpaper_page.dart            |  1 +
 4 files changed, 24 insertions(+)

diff --git a/lib/widgets/common/basic/insets.dart b/lib/widgets/common/basic/insets.dart
index ce6b182d8..671c27738 100644
--- a/lib/widgets/common/basic/insets.dart
+++ b/lib/widgets/common/basic/insets.dart
@@ -25,6 +25,26 @@ class BottomGestureAreaProtector extends StatelessWidget {
   }
 }
 
+// It will prevent the body from scrolling when a user swipe from top to show the status bar when system UI is hidden.
+class TopGestureAreaProtector extends StatelessWidget {
+  const TopGestureAreaProtector({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Positioned(
+      left: 0,
+      top: 0,
+      right: 0,
+      height: context.select<MediaQueryData, double>((mq) => mq.systemGestureInsets.top),
+      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({super.key});
diff --git a/lib/widgets/viewer/entry_viewer_stack.dart b/lib/widgets/viewer/entry_viewer_stack.dart
index 48dae48ac..2005f2174 100644
--- a/lib/widgets/viewer/entry_viewer_stack.dart
+++ b/lib/widgets/viewer/entry_viewer_stack.dart
@@ -277,6 +277,7 @@ class _EntryViewerStackState extends State<EntryViewerStack> with EntryViewContr
                 onViewDisposed: (mainEntry, pageEntry) => viewStateConductor.reset(pageEntry ?? mainEntry),
               ),
               ..._buildOverlays(),
+              const TopGestureAreaProtector(),
               const SideGestureAreaProtector(),
               const BottomGestureAreaProtector(),
             ],
diff --git a/lib/widgets/viewer/panorama_page.dart b/lib/widgets/viewer/panorama_page.dart
index e692d6e34..f2822b1f8 100644
--- a/lib/widgets/viewer/panorama_page.dart
+++ b/lib/widgets/viewer/panorama_page.dart
@@ -136,6 +136,8 @@ class _PanoramaPageState extends State<PanoramaPage> {
                   ),
                 ),
               ),
+              const TopGestureAreaProtector(),
+              const SideGestureAreaProtector(),
               const BottomGestureAreaProtector(),
             ],
           ),
diff --git a/lib/widgets/wallpaper_page.dart b/lib/widgets/wallpaper_page.dart
index fde459e74..390001329 100644
--- a/lib/widgets/wallpaper_page.dart
+++ b/lib/widgets/wallpaper_page.dart
@@ -144,6 +144,7 @@ class _EntryEditorState extends State<EntryEditor> with EntryViewControllerMixin
             bottom: 0,
             child: _buildBottomOverlay(),
           ),
+          const TopGestureAreaProtector(),
           const SideGestureAreaProtector(),
           const BottomGestureAreaProtector(),
         ],