Add vector-specific stroke color A11Y settings to PointerIcon.

Bug: 305193969
Test: PointerIconLoadingTest
Flag: android.view.flags.enable_vector_cursor_a11y_settings
Change-Id: Id899d1bef33715e0c0327ffbc471f9e272c5c3ad
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 57853e7..c0e46fa 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -6178,6 +6178,15 @@
         public static final String POINTER_FILL_STYLE = "pointer_fill_style";
 
         /**
+         * Pointer stroke style, specified by
+         * {@link android.view.PointerIcon.PointerIconVectorStyleStroke} constants.
+         *
+         * @hide
+         */
+        @Readable
+        public static final String POINTER_STROKE_STYLE = "pointer_stroke_style";
+
+        /**
          * Whether lock-to-app will be triggered by long-press on recents.
          * @hide
          */
@@ -6380,6 +6389,7 @@
             PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
             PRIVATE_SETTINGS.add(POINTER_SPEED);
             PRIVATE_SETTINGS.add(POINTER_FILL_STYLE);
+            PRIVATE_SETTINGS.add(POINTER_STROKE_STYLE);
             PRIVATE_SETTINGS.add(POINTER_SCALE);
             PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
             PRIVATE_SETTINGS.add(EGG_MODE);
diff --git a/core/java/android/view/PointerIcon.java b/core/java/android/view/PointerIcon.java
index c302126..1535145 100644
--- a/core/java/android/view/PointerIcon.java
+++ b/core/java/android/view/PointerIcon.java
@@ -193,6 +193,25 @@
     /** @hide */ public static final int POINTER_ICON_VECTOR_STYLE_FILL_END =
             POINTER_ICON_VECTOR_STYLE_FILL_BLUE;
 
+    /** @hide */
+    @IntDef(prefix = {"POINTER_ICON_VECTOR_STYLE_STROKE_"}, value = {
+            POINTER_ICON_VECTOR_STYLE_STROKE_WHITE,
+            POINTER_ICON_VECTOR_STYLE_STROKE_BLACK,
+            POINTER_ICON_VECTOR_STYLE_STROKE_NONE
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface PointerIconVectorStyleStroke {}
+
+    /** @hide */ public static final int POINTER_ICON_VECTOR_STYLE_STROKE_WHITE = 0;
+    /** @hide */ public static final int POINTER_ICON_VECTOR_STYLE_STROKE_BLACK = 1;
+    /** @hide */ public static final int POINTER_ICON_VECTOR_STYLE_STROKE_NONE = 2;
+
+    // If adding PointerIconVectorStyleStroke, update END value for {@link SystemSettingsValidators}
+    /** @hide */ public static final int POINTER_ICON_VECTOR_STYLE_STROKE_BEGIN =
+            POINTER_ICON_VECTOR_STYLE_STROKE_WHITE;
+    /** @hide */ public static final int POINTER_ICON_VECTOR_STYLE_STROKE_END =
+            POINTER_ICON_VECTOR_STYLE_STROKE_NONE;
+
     /** @hide */ public static final float DEFAULT_POINTER_SCALE = 1f;
     /** @hide */ public static final float LARGE_POINTER_SCALE = 2.5f;
 
@@ -712,6 +731,23 @@
     }
 
     /**
+     * Convert stroke style constant to resource ID.
+     *
+     * @hide
+     */
+    public static int vectorStrokeStyleToResource(@PointerIconVectorStyleStroke int strokeStyle) {
+        return switch (strokeStyle) {
+            case POINTER_ICON_VECTOR_STYLE_STROKE_BLACK ->
+                    com.android.internal.R.style.PointerIconVectorStyleStrokeBlack;
+            case POINTER_ICON_VECTOR_STYLE_STROKE_WHITE ->
+                    com.android.internal.R.style.PointerIconVectorStyleStrokeWhite;
+            case POINTER_ICON_VECTOR_STYLE_STROKE_NONE ->
+                    com.android.internal.R.style.PointerIconVectorStyleStrokeNone;
+            default -> com.android.internal.R.style.PointerIconVectorStyleStrokeWhite;
+        };
+    }
+
+    /**
      * Sets whether drop shadow will draw in the native code.
      *
      * @hide
diff --git a/core/proto/android/providers/settings/system.proto b/core/proto/android/providers/settings/system.proto
index 6a0ec1d..e5ced25 100644
--- a/core/proto/android/providers/settings/system.proto
+++ b/core/proto/android/providers/settings/system.proto
@@ -126,6 +126,7 @@
         option (android.msg_privacy).dest = DEST_EXPLICIT;
 
         optional SettingProto pointer_fill_style = 1 [ (android.privacy).dest = DEST_AUTOMATIC ];
+        optional SettingProto pointer_stroke_style = 2 [ (android.privacy).dest = DEST_AUTOMATIC ];
         optional SettingProto pointer_scale = 3 [ (android.privacy).dest = DEST_AUTOMATIC ];
     }
     optional Pointer pointer = 37;
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 4883827..27c6a24 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -9704,6 +9704,8 @@
     <declare-styleable name="PointerIconVectorTheme">
         <attr name="pointerIconVectorFill" format="color" />
         <attr name="pointerIconVectorFillInverse" format="color" />
+        <attr name="pointerIconVectorStroke" format="color" />
+        <attr name="pointerIconVectorStrokeInverse" format="color" />
     </declare-styleable>
 
     <declare-styleable name="Storage">
diff --git a/core/res/res/values/styles.xml b/core/res/res/values/styles.xml
index 50c3b1a..aabc8ca 100644
--- a/core/res/res/values/styles.xml
+++ b/core/res/res/values/styles.xml
@@ -1527,6 +1527,24 @@
     </style>
 
     <!-- @hide -->
+    <style name="PointerIconVectorStyleStrokeWhite">
+        <item name="pointerIconVectorStroke">@color/white</item>
+        <item name="pointerIconVectorStrokeInverse">@color/black</item>
+    </style>
+
+    <!-- @hide -->
+    <style name="PointerIconVectorStyleStrokeBlack">
+        <item name="pointerIconVectorStroke">@color/black</item>
+        <item name="pointerIconVectorStrokeInverse">@color/white</item>
+    </style>
+
+    <!-- @hide -->
+    <style name="PointerIconVectorStyleStrokeNone">
+        <item name="pointerIconVectorStroke">@color/transparent</item>
+        <item name="pointerIconVectorStrokeInverse">@color/transparent</item>
+    </style>
+
+    <!-- @hide -->
     <style name="aerr_list_item" parent="Widget.Material.Light.Button.Borderless">
         <item name="minHeight">?attr/listPreferredItemHeightSmall</item>
         <item name="textAppearance">?attr/textAppearanceListItemSmall</item>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 7a51abc..3def092 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -1704,6 +1704,10 @@
   <java-symbol type="style" name="PointerIconVectorStyleFillPink" />
   <java-symbol type="style" name="PointerIconVectorStyleFillBlue" />
   <java-symbol type="attr" name="pointerIconVectorFill" />
+  <java-symbol type="style" name="PointerIconVectorStyleStrokeWhite" />
+  <java-symbol type="style" name="PointerIconVectorStyleStrokeBlack" />
+  <java-symbol type="style" name="PointerIconVectorStyleStrokeNone" />
+  <java-symbol type="attr" name="pointerIconVectorStroke" />
   <java-symbol type="style" name="TextAppearance.DeviceDefault.Notification.Title" />
   <java-symbol type="style" name="TextAppearance.DeviceDefault.Notification.Info" />
 
diff --git a/packages/SettingsProvider/src/android/provider/settings/backup/SystemSettings.java b/packages/SettingsProvider/src/android/provider/settings/backup/SystemSettings.java
index 00fb7a1..2cdd0ae 100644
--- a/packages/SettingsProvider/src/android/provider/settings/backup/SystemSettings.java
+++ b/packages/SettingsProvider/src/android/provider/settings/backup/SystemSettings.java
@@ -80,6 +80,7 @@
                 Settings.System.SIP_RECEIVE_CALLS,
                 Settings.System.POINTER_SPEED,
                 Settings.System.POINTER_FILL_STYLE,
+                Settings.System.POINTER_STROKE_STYLE,
                 Settings.System.POINTER_SCALE,
                 Settings.System.VIBRATE_ON,
                 Settings.System.VIBRATE_WHEN_RINGING,
diff --git a/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java b/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
index 4235bc4..7b927d7 100644
--- a/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
+++ b/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
@@ -30,6 +30,8 @@
 import static android.view.PointerIcon.LARGE_POINTER_SCALE;
 import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_FILL_BEGIN;
 import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_FILL_END;
+import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_STROKE_BEGIN;
+import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_STROKE_END;
 
 import android.annotation.Nullable;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -213,6 +215,9 @@
         VALIDATORS.put(System.POINTER_FILL_STYLE,
                 new InclusiveIntegerRangeValidator(POINTER_ICON_VECTOR_STYLE_FILL_BEGIN,
                         POINTER_ICON_VECTOR_STYLE_FILL_END));
+        VALIDATORS.put(System.POINTER_STROKE_STYLE,
+                new InclusiveIntegerRangeValidator(POINTER_ICON_VECTOR_STYLE_STROKE_BEGIN,
+                        POINTER_ICON_VECTOR_STYLE_STROKE_END));
         VALIDATORS.put(System.POINTER_SCALE,
                 new InclusiveFloatRangeValidator(DEFAULT_POINTER_SCALE, LARGE_POINTER_SCALE));
         VALIDATORS.put(System.TOUCHPAD_POINTER_SPEED, new InclusiveIntegerRangeValidator(-7, 7));
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
index 384cb7e..cd37ad1 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
@@ -2916,6 +2916,9 @@
                 Settings.System.POINTER_FILL_STYLE,
                 SystemSettingsProto.Pointer.POINTER_FILL_STYLE);
         dumpSetting(s, p,
+                Settings.System.POINTER_STROKE_STYLE,
+                SystemSettingsProto.Pointer.POINTER_STROKE_STYLE);
+        dumpSetting(s, p,
                 Settings.System.POINTER_SCALE,
                 SystemSettingsProto.Pointer.POINTER_SCALE);
         p.end(pointerToken);
diff --git a/services/core/java/com/android/server/input/InputManagerService.java b/services/core/java/com/android/server/input/InputManagerService.java
index e5dbce9..77ab167 100644
--- a/services/core/java/com/android/server/input/InputManagerService.java
+++ b/services/core/java/com/android/server/input/InputManagerService.java
@@ -3352,6 +3352,10 @@
         mPointerIconCache.setPointerFillStyle(fillStyle);
     }
 
+    void setPointerStrokeStyle(@PointerIcon.PointerIconVectorStyleStroke int strokeStyle) {
+        mPointerIconCache.setPointerStrokeStyle(strokeStyle);
+    }
+
     void setPointerScale(float scale) {
         mPointerIconCache.setPointerScale(scale);
     }
diff --git a/services/core/java/com/android/server/input/InputSettingsObserver.java b/services/core/java/com/android/server/input/InputSettingsObserver.java
index 593b091..000f312 100644
--- a/services/core/java/com/android/server/input/InputSettingsObserver.java
+++ b/services/core/java/com/android/server/input/InputSettingsObserver.java
@@ -18,6 +18,7 @@
 
 import static android.view.PointerIcon.DEFAULT_POINTER_SCALE;
 import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_FILL_BLACK;
+import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_STROKE_WHITE;
 import static android.view.flags.Flags.enableVectorCursorA11ySettings;
 
 import static com.android.input.flags.Flags.rateLimitUserActivityPokeInDispatcher;
@@ -103,6 +104,8 @@
                         (reason) -> updateStylusPointerIconEnabled()),
                 Map.entry(Settings.System.getUriFor(Settings.System.POINTER_FILL_STYLE),
                         (reason) -> updatePointerFillStyleFromSettings()),
+                Map.entry(Settings.System.getUriFor(Settings.System.POINTER_STROKE_STYLE),
+                        (reason) -> updatePointerStrokeStyleFromSettings()),
                 Map.entry(Settings.System.getUriFor(Settings.System.POINTER_SCALE),
                         (reason) -> updatePointerScaleFromSettings()));
     }
@@ -281,6 +284,17 @@
         mService.setPointerFillStyle(pointerFillStyle);
     }
 
+    private void updatePointerStrokeStyleFromSettings() {
+        if (!enableVectorCursorA11ySettings()) {
+            return;
+        }
+        final int pointerStrokeStyle = Settings.System.getIntForUser(
+                mContext.getContentResolver(), Settings.System.POINTER_STROKE_STYLE,
+                POINTER_ICON_VECTOR_STYLE_STROKE_WHITE,
+                UserHandle.USER_CURRENT);
+        mService.setPointerStrokeStyle(pointerStrokeStyle);
+    }
+
     private void updatePointerScaleFromSettings() {
         if (!enableVectorCursorA11ySettings()) {
             return;
diff --git a/services/core/java/com/android/server/input/PointerIconCache.java b/services/core/java/com/android/server/input/PointerIconCache.java
index 44622d8..297cd68 100644
--- a/services/core/java/com/android/server/input/PointerIconCache.java
+++ b/services/core/java/com/android/server/input/PointerIconCache.java
@@ -18,6 +18,7 @@
 
 import static android.view.PointerIcon.DEFAULT_POINTER_SCALE;
 import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_FILL_BLACK;
+import static android.view.PointerIcon.POINTER_ICON_VECTOR_STYLE_STROKE_WHITE;
 
 import android.annotation.NonNull;
 import android.content.Context;
@@ -65,6 +66,9 @@
     private @PointerIcon.PointerIconVectorStyleFill int mPointerIconFillStyle =
             POINTER_ICON_VECTOR_STYLE_FILL_BLACK;
     @GuardedBy("mLoadedPointerIconsByDisplayAndType")
+    private @PointerIcon.PointerIconVectorStyleStroke int mPointerIconStrokeStyle =
+            POINTER_ICON_VECTOR_STYLE_STROKE_WHITE;
+    @GuardedBy("mLoadedPointerIconsByDisplayAndType")
     private float mPointerIconScale = DEFAULT_POINTER_SCALE;
 
     private final DisplayManager.DisplayListener mDisplayListener =
@@ -120,6 +124,11 @@
         mUiThreadHandler.post(() -> handleSetPointerFillStyle(fillStyle));
     }
 
+    /** Set the stroke style for vector pointer icons. */
+    public void setPointerStrokeStyle(@PointerIcon.PointerIconVectorStyleStroke int strokeStyle) {
+        mUiThreadHandler.post(() -> handleSetPointerStrokeStyle(strokeStyle));
+    }
+
     /** Set the scale for vector pointer icons. */
     public void setPointerScale(float scale) {
         mUiThreadHandler.post(() -> handleSetPointerScale(scale));
@@ -144,6 +153,8 @@
                 theme.setTo(context.getTheme());
                 theme.applyStyle(PointerIcon.vectorFillStyleToResource(mPointerIconFillStyle),
                         /* force= */ true);
+                theme.applyStyle(PointerIcon.vectorStrokeStyleToResource(mPointerIconStrokeStyle),
+                        /* force= */ true);
                 icon = PointerIcon.getLoadedSystemIcon(new ContextThemeWrapper(context, theme),
                         type, mUseLargePointerIcons, mPointerIconScale);
                 iconsByType.put(type, icon);
@@ -224,6 +235,20 @@
     }
 
     @android.annotation.UiThread
+    private void handleSetPointerStrokeStyle(
+            @PointerIcon.PointerIconVectorStyleStroke int strokeStyle) {
+        synchronized (mLoadedPointerIconsByDisplayAndType) {
+            if (mPointerIconStrokeStyle == strokeStyle) {
+                return;
+            }
+            mPointerIconStrokeStyle = strokeStyle;
+            // Clear all cached icons on all displays.
+            mLoadedPointerIconsByDisplayAndType.clear();
+        }
+        mNative.reloadPointerIcons();
+    }
+
+    @android.annotation.UiThread
     private void handleSetPointerScale(float scale) {
         synchronized (mLoadedPointerIconsByDisplayAndType) {
             if (mPointerIconScale == scale) {
diff --git a/tests/Input/assets/testPointerStrokeStyle.png b/tests/Input/assets/testPointerStrokeStyle.png
new file mode 100644
index 0000000..4ddde70
--- /dev/null
+++ b/tests/Input/assets/testPointerStrokeStyle.png
Binary files differ
diff --git a/tests/Input/src/com/android/test/input/PointerIconLoadingTest.kt b/tests/Input/src/com/android/test/input/PointerIconLoadingTest.kt
index d196b85..e0f8c6d 100644
--- a/tests/Input/src/com/android/test/input/PointerIconLoadingTest.kt
+++ b/tests/Input/src/com/android/test/input/PointerIconLoadingTest.kt
@@ -88,6 +88,35 @@
         theme.applyStyle(
             PointerIcon.vectorFillStyleToResource(PointerIcon.POINTER_ICON_VECTOR_STYLE_FILL_GREEN),
             /* force= */ true)
+        theme.applyStyle(PointerIcon.vectorStrokeStyleToResource(
+            PointerIcon.POINTER_ICON_VECTOR_STYLE_STROKE_WHITE), /* force= */ true)
+
+        val pointerIcon =
+            PointerIcon.getLoadedSystemIcon(
+                ContextThemeWrapper(context, theme),
+                PointerIcon.TYPE_ARROW,
+                /* useLargeIcons= */ false,
+                /* pointerScale= */ 1f)
+
+        pointerIcon.getBitmap().assertAgainstGolden(
+            screenshotRule,
+            testName.methodName,
+            exactScreenshotMatcher
+        )
+    }
+
+    @Test
+    fun testPointerStrokeStyle() {
+        assumeTrue(enableVectorCursors())
+        assumeTrue(enableVectorCursorA11ySettings())
+
+        val theme: Resources.Theme = context.getResources().newTheme()
+        theme.setTo(context.getTheme())
+        theme.applyStyle(
+            PointerIcon.vectorFillStyleToResource(PointerIcon.POINTER_ICON_VECTOR_STYLE_FILL_BLACK),
+            /* force= */ true)
+        theme.applyStyle(PointerIcon.vectorStrokeStyleToResource(
+            PointerIcon.POINTER_ICON_VECTOR_STYLE_STROKE_BLACK), /* force= */ true)
 
         val pointerIcon =
             PointerIcon.getLoadedSystemIcon(