Fix bug: AOSP keyboard is shown incompletely in Android V landscape mode

Root cause: The AOSP keyboard uses `DisplayMetrics#widthPixels` to calculate the keyboard width and draw keys. Since Android 15’s edge-to-edge enforcement, this property now returns the full screen width, including window insets. This results in an incorrectly large key width calculation.

Fix: Subtract window insets including system bar and display cutout from the width.

Change-Id: Iea01ba749a48145cf5b484dc22a570874b1b7ca4
Test: use `m LatinIME` to install the AOSP keyboard and test landscape mode manually
Bug: 377594757

5 files changed, 28 insertions, 9 deletions

diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
index 91295c772..d398ab8c5 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
@@ -116,7 +116,7 @@ public final class KeyboardSwitcher implements KeyboardState.SwitchActions {
         final KeyboardLayoutSet.Builder builder = new KeyboardLayoutSet.Builder(
                 mThemeContext, editorInfo);
         final Resources res = mThemeContext.getResources();
-        final int keyboardWidth = ResourceUtils.getDefaultKeyboardWidth(res);
+        final int keyboardWidth = ResourceUtils.getDefaultKeyboardWidth(mThemeContext);
         final int keyboardHeight = ResourceUtils.getKeyboardHeight(res, settingsValues);
         builder.setKeyboardGeometry(keyboardWidth, keyboardHeight);
         builder.setSubtype(mRichImm.getCurrentSubtype());
diff --git a/java/src/com/android/inputmethod/keyboard/emoji/EmojiLayoutParams.java b/java/src/com/android/inputmethod/keyboard/emoji/EmojiLayoutParams.java
index 797541a15..a85c3a97f 100644
--- a/java/src/com/android/inputmethod/keyboard/emoji/EmojiLayoutParams.java
+++ b/java/src/com/android/inputmethod/keyboard/emoji/EmojiLayoutParams.java
@@ -16,6 +16,7 @@
 
 package com.android.inputmethod.keyboard.emoji;
 
+import android.content.Context;
 import android.content.res.Resources;
 import androidx.viewpager.widget.ViewPager;
 import android.view.View;
@@ -37,9 +38,10 @@ final class EmojiLayoutParams {
     private final int mBottomPadding;
     private final int mTopPadding;
 
-    public EmojiLayoutParams(final Resources res) {
+    public EmojiLayoutParams(final Context context) {
+        final Resources res = context.getResources();
         final int defaultKeyboardHeight = ResourceUtils.getDefaultKeyboardHeight(res);
-        final int defaultKeyboardWidth = ResourceUtils.getDefaultKeyboardWidth(res);
+        final int defaultKeyboardWidth = ResourceUtils.getDefaultKeyboardWidth(context);
         mKeyVerticalGap = (int) res.getFraction(R.fraction.config_key_vertical_gap_holo,
                 defaultKeyboardHeight, defaultKeyboardHeight);
         mBottomPadding = (int) res.getFraction(R.fraction.config_keyboard_bottom_padding_holo,
diff --git a/java/src/com/android/inputmethod/keyboard/emoji/EmojiPalettesView.java b/java/src/com/android/inputmethod/keyboard/emoji/EmojiPalettesView.java
index 9ba8d2ba2..898605019 100644
--- a/java/src/com/android/inputmethod/keyboard/emoji/EmojiPalettesView.java
+++ b/java/src/com/android/inputmethod/keyboard/emoji/EmojiPalettesView.java
@@ -109,9 +109,9 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
         final KeyboardLayoutSet.Builder builder = new KeyboardLayoutSet.Builder(
                 context, null /* editorInfo */);
         final Resources res = context.getResources();
-        mEmojiLayoutParams = new EmojiLayoutParams(res);
+        mEmojiLayoutParams = new EmojiLayoutParams(context);
         builder.setSubtype(RichInputMethodSubtype.getEmojiSubtype());
-        builder.setKeyboardGeometry(ResourceUtils.getDefaultKeyboardWidth(res),
+        builder.setKeyboardGeometry(ResourceUtils.getDefaultKeyboardWidth(context),
                 mEmojiLayoutParams.mEmojiKeyboardHeight);
         final KeyboardLayoutSet layoutSet = builder.build();
         final TypedArray emojiPalettesViewAttr = context.obtainStyledAttributes(attrs,
@@ -137,7 +137,7 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         final Resources res = getContext().getResources();
         // The main keyboard expands to the entire this {@link KeyboardView}.
-        final int width = ResourceUtils.getDefaultKeyboardWidth(res)
+        final int width = ResourceUtils.getDefaultKeyboardWidth(getContext())
                 + getPaddingLeft() + getPaddingRight();
         final int height = ResourceUtils.getDefaultKeyboardHeight(res)
                 + res.getDimensionPixelSize(R.dimen.config_suggestions_strip_height)
diff --git a/java/src/com/android/inputmethod/latin/utils/ResourceUtils.java b/java/src/com/android/inputmethod/latin/utils/ResourceUtils.java
index cc0d470df..f799be750 100644
--- a/java/src/com/android/inputmethod/latin/utils/ResourceUtils.java
+++ b/java/src/com/android/inputmethod/latin/utils/ResourceUtils.java
@@ -16,13 +16,18 @@
 
 package com.android.inputmethod.latin.utils;
 
+import android.content.Context;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
+import android.graphics.Insets;
 import android.os.Build;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.TypedValue;
+import android.view.WindowInsets;
+import android.view.WindowManager;
+import android.view.WindowMetrics;
 
 import com.android.inputmethod.annotations.UsedForTesting;
 import com.android.inputmethod.latin.R;
@@ -182,8 +187,20 @@ public final class ResourceUtils {
         return matchedAll;
     }
 
-    public static int getDefaultKeyboardWidth(final Resources res) {
-        final DisplayMetrics dm = res.getDisplayMetrics();
+    public static int getDefaultKeyboardWidth(final Context context) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
+            // Since Android 15’s edge-to-edge enforcement, window insets should be considered.
+            final WindowManager wm = context.getSystemService(WindowManager.class);
+            final WindowMetrics windowMetrics = wm.getCurrentWindowMetrics();
+            final Insets insets =
+                    windowMetrics
+                            .getWindowInsets()
+                            .getInsetsIgnoringVisibility(
+                                    WindowInsets.Type.systemBars()
+                                            | WindowInsets.Type.displayCutout());
+            return windowMetrics.getBounds().width() - insets.left - insets.right;
+        }
+        final DisplayMetrics dm = context.getResources().getDisplayMetrics();
         return dm.widthPixels;
     }
 
diff --git a/tests/src/com/android/inputmethod/keyboard/KeyboardLayoutSetTestsBase.java b/tests/src/com/android/inputmethod/keyboard/KeyboardLayoutSetTestsBase.java
index 29787acc9..1f13b4106 100644
--- a/tests/src/com/android/inputmethod/keyboard/KeyboardLayoutSetTestsBase.java
+++ b/tests/src/com/android/inputmethod/keyboard/KeyboardLayoutSetTestsBase.java
@@ -155,7 +155,7 @@ public abstract class KeyboardLayoutSetTestsBase extends AndroidTestCase {
             final boolean languageSwitchKeyEnabled, final boolean splitLayoutEnabled) {
         final Context context = getContext();
         final Resources res = context.getResources();
-        final int keyboardWidth = ResourceUtils.getDefaultKeyboardWidth(res);
+        final int keyboardWidth = ResourceUtils.getDefaultKeyboardWidth(context);
         final int keyboardHeight = ResourceUtils.getDefaultKeyboardHeight(res);
         final Builder builder = new Builder(context, editorInfo);
         builder.setKeyboardGeometry(keyboardWidth, keyboardHeight)