From 09cdda952760c42ff489e435552d227703a2d684 Mon Sep 17 00:00:00 2001
From: Jani Heikkinen <jani.heikkinen@qt.io>
Date: Tue, 3 Jun 2025 04:37:33 +0000
Subject: [PATCH] Revert "Android: consider DecorView insets at app startup"

This reverts commit e96a4b84e136d065054600c07bf5fae17f3049ce.

Reason for revert: QTBUG-137306

Change-Id: Id5718737f3f426de49ad109d214af1c920e5ae22
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 05f8abc61dd2429d7041a87d5bfc7bffbb105f12)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 0b69f2f7ab290a293cd2deb6759f934f3bf28c12)
---
 .../org/qtproject/qt/android/QtWindow.java    | 58 +++++--------------
 .../android/qandroidplatformwindow.cpp        |  5 --
 2 files changed, 14 insertions(+), 49 deletions(-)

diff --git a/src/android/jar/src/org/qtproject/qt/android/QtWindow.java b/src/android/jar/src/org/qtproject/qt/android/QtWindow.java
index 1f5ae6c2ad9..d17768c8b1d 100644
--- a/src/android/jar/src/org/qtproject/qt/android/QtWindow.java
+++ b/src/android/jar/src/org/qtproject/qt/android/QtWindow.java
@@ -75,57 +75,27 @@ class QtWindow extends QtLayout implements QtSurfaceInterface {
                 });
             m_gestureDetector.setIsLongpressEnabled(true);
         });
-    }
 
-    @UsedFromNativeCode
-    void registerSafeAreaMarginsListner(boolean isTopLevel, boolean isSameWindowAndScreenSize)
-    {
-        if (!(getContext() instanceof QtActivityBase))
-            return;
-
-        setOnApplyWindowInsetsListener((view, insets) -> {
-            Insets safeInsets = getSafeInsets(view, insets);
-            safeAreaMarginsChanged(safeInsets, getId());
-            return getConsumedInsets(insets);
-        });
-
-        // NOTE: if the window size fits the screen geometry (i.e. edge-to-edge case),
-        // assume this window is the main window and initialize its safe margins with
-        // the insets of the decor view.
-        if (isTopLevel && isSameWindowAndScreenSize) {
-            QtNative.runAction(() -> {
-                // NOTE: The callback onApplyWindowInsetsListener() is not being triggered during
-                // startup, so this is a Workaround to get the safe area margins at startup.
-                // Initially, set the root view insets to the current window, then if the insets
-                // change later, we can rely on setOnApplyWindowInsetsListener() being called.
-                View decorView = ((Activity) getContext()).getWindow().getDecorView();
-                WindowInsets rootInsets = decorView.getRootWindowInsets();
-                Insets rootSafeInsets = getSafeInsets(decorView, rootInsets);
-                safeAreaMarginsChanged(rootSafeInsets, getId());
+        if (getContext() instanceof QtActivityBase) {
+            setOnApplyWindowInsetsListener((view, insets) -> {
+                Insets safeInsets;
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    int types = WindowInsets.Type.displayCutout() | WindowInsets.Type.systemBars();
+                    safeInsets = insets.getInsets(types);
+                } else {
+                    safeInsets = getSafeInsetsPreAndroidR(view, insets);
+                }
+                QtNative.runAction(() -> safeAreaMarginsChanged(safeInsets, getId()));
+                return insets;
             });
-        }
 
-        QtNative.runAction(() -> requestApplyInsets());
+            QtNative.runAction(() -> requestApplyInsets());
+        }
     }
 
     @SuppressWarnings("deprecation")
-    WindowInsets getConsumedInsets(WindowInsets insets)
+    Insets getSafeInsetsPreAndroidR(View view, WindowInsets insets)
     {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
-            return WindowInsets.CONSUMED;
-        else
-            return insets.consumeSystemWindowInsets();
-    }
-
-    @SuppressWarnings("deprecation")
-    Insets getSafeInsets(View view, WindowInsets insets)
-    {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-            int types = WindowInsets.Type.displayCutout() | WindowInsets.Type.systemBars();
-            return insets.getInsets(types);
-        }
-
-        // Android R and older
         int left = 0;
         int top = 0;
         int right = 0;
diff --git a/src/plugins/platforms/android/qandroidplatformwindow.cpp b/src/plugins/platforms/android/qandroidplatformwindow.cpp
index e904145a7c9..e22f336bc51 100644
--- a/src/plugins/platforms/android/qandroidplatformwindow.cpp
+++ b/src/plugins/platforms/android/qandroidplatformwindow.cpp
@@ -96,11 +96,6 @@ void QAndroidPlatformWindow::initialize()
     }
     qCDebug(lcQpaWindow) << "Window" << m_nativeViewId << "using surface container type"
                          << static_cast<int>(m_surfaceContainerType);
-
-    const bool isSameWindowAndScreenSize = geometry().size() == screen()->geometry().size();
-    m_nativeQtWindow.callMethod<void>("registerSafeAreaMarginsListner",
-                                window->isTopLevel(), isSameWindowAndScreenSize);
-
 }
 
 QAndroidPlatformWindow::~QAndroidPlatformWindow()