Merge changes from topic "sticky-h-filter" into main

* changes:
  Update tapl test to consider the show all button
  Maintain selected or last header on clicking "Show all" button
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 34cf56b..ef5c88a 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -20,6 +20,7 @@
 import static android.graphics.fonts.FontStyle.FONT_WEIGHT_NORMAL;
 import static android.text.Layout.Alignment.ALIGN_NORMAL;
 
+import static com.android.launcher3.Flags.enableContrastTiles;
 import static com.android.launcher3.Flags.enableCursorHoverStates;
 import static com.android.launcher3.graphics.PreloadIconDrawable.newPendingIcon;
 import static com.android.launcher3.icons.BitmapInfo.FLAG_NO_BADGE;
@@ -39,6 +40,7 @@
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Rect;
+import android.graphics.RectF;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.icu.text.MessageFormat;
@@ -722,6 +724,29 @@
         }
     }
 
+    /** Draws a background behind the App Title label when required. **/
+    public void drawAppContrastTile(Canvas canvas) {
+        RectF appTitleBounds;
+        Paint.FontMetrics fm = getPaint().getFontMetrics();
+        Rect tmpRect = new Rect();
+        getDrawingRect(tmpRect);
+
+        if (mIcon == null) {
+            appTitleBounds = new RectF(0, 0, tmpRect.right,
+                    (int) Math.ceil(fm.bottom - fm.top));
+        } else {
+            Rect iconBounds = new Rect();
+            getIconBounds(iconBounds);
+            int textStart = iconBounds.bottom + getCompoundDrawablePadding();
+            appTitleBounds = new RectF(tmpRect.left, textStart, tmpRect.right,
+                    textStart + (int) Math.ceil(fm.bottom - fm.top));
+        }
+
+        canvas.drawRoundRect(appTitleBounds, appTitleBounds.height() / 2,
+                appTitleBounds.height() / 2,
+                PillColorProvider.getInstance(getContext()).getAppTitlePillPaint());
+    }
+
     /** Draws a line under the app icon if this is representing a running app in Desktop Mode. */
     protected void drawRunningAppIndicatorIfNecessary(Canvas canvas) {
         if (mRunningAppState == RunningAppState.NOT_RUNNING || mDisplay != DISPLAY_TASKBAR) {
@@ -909,7 +934,9 @@
 
     @Override
     public void setTextColor(ColorStateList colors) {
-        mTextColor = colors.getDefaultColor();
+        mTextColor = shouldDrawAppContrastTile() ? PillColorProvider.getInstance(
+                getContext()).getAppTitleTextPaint().getColor()
+                : colors.getDefaultColor();
         mTextColorStateList = colors;
         if (Float.compare(mTextAlpha, 1) == 0) {
             super.setTextColor(colors);
@@ -926,6 +953,15 @@
                 && info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION);
     }
 
+    /**
+     * Whether or not an App title contrast tile should be drawn for this element.
+     **/
+    public boolean shouldDrawAppContrastTile() {
+        return mDisplay == DISPLAY_WORKSPACE && shouldTextBeVisible()
+                && PillColorProvider.getInstance(getContext()).isMatchaEnabled()
+                && enableContrastTiles();
+    }
+
     public void setTextVisibility(boolean visible) {
         setTextAlpha(visible ? 1 : 0);
     }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 6145077..305941e 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -537,6 +537,7 @@
 
         mPopupDataProvider = new PopupDataProvider(this::updateNotificationDots);
         mWidgetPickerDataProvider = new WidgetPickerDataProvider();
+        PillColorProvider.getInstance(mWorkspace.getContext()).registerObserver();
 
         boolean internalStateHandled = ACTIVITY_TRACKER.handleCreate(this);
         if (internalStateHandled) {
@@ -1813,6 +1814,7 @@
         // changes while launcher is still loading.
         getRootView().getViewTreeObserver().removeOnPreDrawListener(mOnInitialBindListener);
         mOverlayManager.onActivityDestroyed();
+        PillColorProvider.getInstance(mWorkspace.getContext()).unregisterObserver();
     }
 
     public LauncherAccessibilityDelegate getAccessibilityDelegate() {
diff --git a/src/com/android/launcher3/PillColorPorovider.kt b/src/com/android/launcher3/PillColorPorovider.kt
new file mode 100644
index 0000000..347c5d6
--- /dev/null
+++ b/src/com/android/launcher3/PillColorPorovider.kt
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3
+
+import android.content.Context
+import android.database.ContentObserver
+import android.graphics.Paint
+import android.net.Uri
+import android.provider.Settings
+import com.android.launcher3.util.Executors.ORDERED_BG_EXECUTOR
+
+class PillColorProvider private constructor(c: Context) {
+    private val context = c.applicationContext
+
+    private val matchaUri by lazy { Settings.Secure.getUriFor(MATCHA_SETTING) }
+    var appTitlePillPaint = Paint()
+        private set
+
+    var appTitleTextPaint = Paint()
+        private set
+
+    private var isMatchaEnabledInternal = 0
+
+    var isMatchaEnabled = isMatchaEnabledInternal != 0
+
+    private val pillColorObserver =
+        object : ContentObserver(ORDERED_BG_EXECUTOR.handler) {
+            override fun onChange(selfChange: Boolean, uri: Uri?) {
+                if (uri == matchaUri) {
+                    isMatchaEnabledInternal =
+                        Settings.Secure.getInt(context.contentResolver, MATCHA_SETTING, 0)
+                    isMatchaEnabled = isMatchaEnabledInternal != 0
+                }
+            }
+        }
+
+    fun registerObserver() {
+        context.contentResolver.registerContentObserver(matchaUri, false, pillColorObserver)
+        setup()
+    }
+
+    fun unregisterObserver() {
+        context.contentResolver.unregisterContentObserver(pillColorObserver)
+    }
+
+    fun setup() {
+        appTitlePillPaint.color =
+            context.resources.getColor(
+                R.color.material_color_surface_container_lowest,
+                context.theme,
+            )
+        appTitleTextPaint.color =
+            context.resources.getColor(R.color.material_color_on_surface, context.theme)
+        isMatchaEnabledInternal = Settings.Secure.getInt(context.contentResolver, MATCHA_SETTING, 0)
+        isMatchaEnabled = isMatchaEnabledInternal != 0
+    }
+
+    companion object {
+        private var INSTANCE: PillColorProvider? = null
+        private const val MATCHA_SETTING = "matcha_enable"
+
+        // TODO: Replace with a Dagger injection that is a singleton.
+        @JvmStatic
+        fun getInstance(context: Context): PillColorProvider {
+            if (INSTANCE == null) {
+                INSTANCE = PillColorProvider(context)
+            }
+            return INSTANCE!!
+        }
+    }
+}
diff --git a/src/com/android/launcher3/views/DoubleShadowBubbleTextView.java b/src/com/android/launcher3/views/DoubleShadowBubbleTextView.java
index ef66ffe..392d9a7 100644
--- a/src/com/android/launcher3/views/DoubleShadowBubbleTextView.java
+++ b/src/com/android/launcher3/views/DoubleShadowBubbleTextView.java
@@ -102,6 +102,9 @@
 
     @Override
     public void onDraw(Canvas canvas) {
+        if (shouldDrawAppContrastTile()) {
+            drawAppContrastTile(canvas);
+        }
         // If text is transparent or shadow alpha is 0, don't draw any shadow
         if (skipDoubleShadow()) {
             super.onDraw(canvas);