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Use getBoundingRects to add support inset MediaQuery/SafeArea when in freeform mode controls are shown. #54294
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,68 @@ | ||
| // Copyright 2013 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| package io.flutter.embedding.android; | ||
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| import android.app.Activity; | ||
| import android.content.Context; | ||
| import android.graphics.Rect; | ||
| import android.view.Window; | ||
| import android.view.WindowInsets; | ||
| import androidx.annotation.RequiresApi; | ||
| import androidx.annotation.VisibleForTesting; | ||
| import io.flutter.Build; | ||
| import io.flutter.embedding.engine.renderer.FlutterRenderer; | ||
| import io.flutter.util.ViewUtils; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
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| /** | ||
| * A delegate class that performs the task of retrieving the bounding rect values. Logic that is | ||
| * independent of the engine, or that tests must access in the absence of an engine, shall reside | ||
| * within this class. | ||
| */ | ||
| public class FlutterViewDelegate { | ||
| /** | ||
| * Return the WindowInsets object for the provided Context. Returns null if there is no associated | ||
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| * activity, the window of the associated activity is null, or the root window insets of the | ||
| * activity's window is null. | ||
| */ | ||
| @RequiresApi(api = Build.API_LEVELS.API_23) | ||
| @VisibleForTesting | ||
| public WindowInsets getWindowInsets(Context context) { | ||
| Activity activity = ViewUtils.getActivity(context); | ||
| if (activity == null) { | ||
| return null; | ||
| } | ||
| Window window = activity.getWindow(); | ||
| if (window == null) { | ||
| return null; | ||
| } | ||
| return window.getDecorView().getRootWindowInsets(); | ||
| } | ||
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| @RequiresApi(api = Build.API_LEVELS.API_35) | ||
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| public List<Rect> getCaptionBarInsets(Context context) { | ||
| WindowInsets insets = getWindowInsets(context); | ||
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| if (insets == null) { | ||
| return Collections.emptyList(); | ||
| } | ||
| return insets.getBoundingRects(WindowInsets.Type.captionBar()); | ||
| } | ||
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| @RequiresApi(api = Build.API_LEVELS.API_35) | ||
| public void growViewportMetricsToCaptionBar( | ||
| Context context, FlutterRenderer.ViewportMetrics viewportMetrics) { | ||
| List<Rect> boundingRects = getCaptionBarInsets(context); | ||
| if (boundingRects.size() != 1) { | ||
| return; | ||
| } | ||
| // The value getCaptionBarInset returns is only the bounding rects of the caption bar. | ||
| // When assigning the new value of viewPaddingTop, the maximum is taken with its old value | ||
| // to ensure that any previous top padding that is greater than that from the caption bar | ||
| // is not destroyed by this operation. | ||
| viewportMetrics.viewPaddingTop = | ||
| Math.max(viewportMetrics.viewPaddingTop, boundingRects.get(0).bottom); | ||
| } | ||
| } | ||
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Digging into go/customizable-window-headers I found APPEARANCE_TRANSPARENT_CAPTION_BAR_BACKGROUND Can you test an app with that flag set vs the default and come up with a recommendation on if we should apply transparent caption bar by default or not?
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