Refactoring: extract helper functions from StatusBarModule (#46224)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/46224

- Extract functions from StatusBarModule so they can be reused
- WindowUtil was created as a container for the extracted Window related helper functions

Changelog: [Internal]

Reviewed By: tdn120

Differential Revision: D61834841

fbshipit-source-id: a40f6b95ab7569bbe7680b5ca314eb0844114d1d

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -8336,3 +8336,8 @@ public final class com/facebook/react/views/view/ViewGroupClickEvent : com/faceb
 	public fun getEventName ()Ljava/lang/String;
 }
 
+public final class com/facebook/react/views/view/WindowUtilKt {
+	public static final fun setStatusBarTranslucency (Landroid/view/Window;Z)V
+	public static final fun setStatusBarVisibility (Landroid/view/Window;Z)V
+}
+

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/modules/statusbar/StatusBarModule.kt

@@ -24,6 +24,8 @@ import com.facebook.react.bridge.UiThreadUtil
 import com.facebook.react.common.ReactConstants
 import com.facebook.react.module.annotations.ReactModule
 import com.facebook.react.uimanager.PixelUtil
+import com.facebook.react.views.view.setStatusBarTranslucency
+import com.facebook.react.views.view.setStatusBarVisibility
 
 /** [NativeModule] that allows changing the appearance of the status bar. */
 @ReactModule(name = NativeStatusBarManagerAndroidSpec.NAME)
@@ -97,23 +99,7 @@ public class StatusBarModule(reactContext: ReactApplicationContext?) :
     UiThreadUtil.runOnUiThread(
         object : GuardedRunnable(reactApplicationContext) {
           override fun runGuarded() {
-            // If the status bar is translucent hook into the window insets calculations
-            // and consume all the top insets so no padding will be added under the status bar.
-            val window = activity.window ?: return
-            val decorView = window.decorView
-            if (translucent) {
-              decorView.setOnApplyWindowInsetsListener { v, insets ->
-                val defaultInsets = v.onApplyWindowInsets(insets)
-                defaultInsets.replaceSystemWindowInsets(
-                    defaultInsets.systemWindowInsetLeft,
-                    0,
-                    defaultInsets.systemWindowInsetRight,
-                    defaultInsets.systemWindowInsetBottom)
-              }
-            } else {
-              decorView.setOnApplyWindowInsetsListener(null)
-            }
-            ViewCompat.requestApplyInsets(decorView)
+            activity.window?.setStatusBarTranslucency(translucent)
           }
         })
   }
@@ -127,28 +113,7 @@ public class StatusBarModule(reactContext: ReactApplicationContext?) :
           "StatusBarModule: Ignored status bar change, current activity is null.")
       return
     }
-    UiThreadUtil.runOnUiThread(
-        Runnable {
-          val window = activity.window ?: return@Runnable
-          if (hidden) {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-              // Ensure the content extends into the cutout area
-              window.attributes.layoutInDisplayCutoutMode =
-                  WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES
-              window.setDecorFitsSystemWindows(false)
-            }
-            window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
-            window.clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN)
-          } else {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-              window.attributes.layoutInDisplayCutoutMode =
-                  WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_DEFAULT
-              window.setDecorFitsSystemWindows(true)
-            }
-            window.addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN)
-            window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
-          }
-        })
+    UiThreadUtil.runOnUiThread { activity.window?.setStatusBarVisibility(hidden) }
   }
 
   @Suppress("DEPRECATION")

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/view/WindowUtil.kt

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.views.view
+
+import android.os.Build
+import android.view.Window
+import android.view.WindowManager
+import androidx.core.view.ViewCompat
+
+@Suppress("DEPRECATION")
+public fun Window.setStatusBarTranslucency(isTranslucent: Boolean) {
+  // If the status bar is translucent hook into the window insets calculations
+  // and consume all the top insets so no padding will be added under the status bar.
+  if (isTranslucent) {
+    decorView.setOnApplyWindowInsetsListener { v, insets ->
+      val defaultInsets = v.onApplyWindowInsets(insets)
+      defaultInsets.replaceSystemWindowInsets(
+          defaultInsets.systemWindowInsetLeft,
+          0,
+          defaultInsets.systemWindowInsetRight,
+          defaultInsets.systemWindowInsetBottom)
+    }
+  } else {
+    decorView.setOnApplyWindowInsetsListener(null)
+  }
+  ViewCompat.requestApplyInsets(decorView)
+}
+
+public fun Window.setStatusBarVisibility(isHidden: Boolean) {
+  if (isHidden) {
+    this.statusBarHide()
+  } else {
+    this.statusBarShow()
+  }
+}
+
+@Suppress("DEPRECATION")
+private fun Window.statusBarHide() {
+  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+    // Ensure the content extends into the cutout area
+    attributes.layoutInDisplayCutoutMode =
+        WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES
+    setDecorFitsSystemWindows(false)
+  }
+  addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
+  clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN)
+}
+
+@Suppress("DEPRECATION")
+private fun Window.statusBarShow() {
+  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+    attributes.layoutInDisplayCutoutMode =
+        WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_DEFAULT
+    setDecorFitsSystemWindows(true)
+  }
+  addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN)
+  clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
+}