From af5f355b35da8bda71398f9de71df831a9ee513c Mon Sep 17 00:00:00 2001
From: Peter_Liang <peterliang@google.com>
Date: Sat, 11 Sep 2021 15:16:35 +0800
Subject: [PATCH] Add the max height restriction into the illustration view.

Bug: 191721423
Test: manual test
Change-Id: I3829ead500eaf586f6d543855690ee8f0d0913ff
---
 .../accessibility/AccessibilityUtil.java      | 25 +++++++++++++++++++
 .../ToggleFeaturePreferenceFragment.java      |  3 +++
 2 files changed, 28 insertions(+)

diff --git a/src/com/android/settings/accessibility/AccessibilityUtil.java b/src/com/android/settings/accessibility/AccessibilityUtil.java
index 5c316a40acd..c93595689b4 100644
--- a/src/com/android/settings/accessibility/AccessibilityUtil.java
+++ b/src/com/android/settings/accessibility/AccessibilityUtil.java
@@ -17,16 +17,22 @@
 package com.android.settings.accessibility;
 
 import static android.provider.Settings.Secure.ACCESSIBILITY_BUTTON_MODE_FLOATING_MENU;
+import static android.view.WindowInsets.Type.displayCutout;
+import static android.view.WindowInsets.Type.systemBars;
 import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL;
 
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.res.Resources;
+import android.graphics.Insets;
+import android.graphics.Rect;
 import android.os.Build;
 import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.TypedValue;
+import android.view.WindowManager;
+import android.view.WindowMetrics;
 import android.view.accessibility.AccessibilityManager;
 
 import androidx.annotation.IntDef;
@@ -390,6 +396,25 @@ final class AccessibilityUtil {
                 resources.getDisplayMetrics()));
     }
 
+    /**
+     * Gets the bounds of the display window excluding the insets of the system bar and display
+     * cut out.
+     *
+     * @param context the current context.
+     * @return the bounds of the display window.
+     */
+    public static Rect getDisplayBounds(Context context) {
+        final WindowManager windowManager = context.getSystemService(WindowManager.class);
+        final WindowMetrics metrics = windowManager.getCurrentWindowMetrics();
+
+        final Rect displayBounds = metrics.getBounds();
+        final Insets displayInsets = metrics.getWindowInsets().getInsetsIgnoringVisibility(
+                systemBars() | displayCutout());
+        displayBounds.inset(displayInsets);
+
+        return displayBounds;
+    }
+
     /**
      * Indicates if the accessibility service belongs to a system App.
      * @param info AccessibilityServiceInfo
diff --git a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
index 245f362e093..4f45b03b5a8 100644
--- a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
@@ -406,10 +406,13 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference
             return;
         }
 
+        final int displayHalfHeight =
+                AccessibilityUtil.getDisplayBounds(getPrefContext()).height() / 2;
         final IllustrationPreference illustrationPreference =
                 new IllustrationPreference(getPrefContext());
         illustrationPreference.setImageUri(mImageUri);
         illustrationPreference.setSelectable(false);
+        illustrationPreference.setMaxHeight(displayHalfHeight);
         illustrationPreference.setKey(KEY_ANIMATED_IMAGE);
 
         getPreferenceScreen().addPreference(illustrationPreference);