Adding icon theming API support in Launcher

Bug: 200082620
Test: manual
Change-Id: If986b9cfc3db79d627d2a6f1304e1b6f58491470

src/com/android/launcher3/LauncherAppState.java

@@ -36,6 +36,7 @@ import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.IconProvider;
+import com.android.launcher3.icons.LauncherIconProvider;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.pm.InstallSessionHelper;
@@ -61,7 +62,7 @@ public class LauncherAppState implements SafeCloseable {
 
     private final Context mContext;
     private final LauncherModel mModel;
-    private final IconProvider mIconProvider;
+    private final LauncherIconProvider mIconProvider;
     private final IconCache mIconCache;
     private final InvariantDeviceProfile mInvariantDeviceProfile;
     private final RunnableList mOnTerminateCallback = new RunnableList();
@@ -138,7 +139,7 @@ public class LauncherAppState implements SafeCloseable {
         mContext = context;
 
         mInvariantDeviceProfile = InvariantDeviceProfile.INSTANCE.get(context);
-        mIconProvider = new IconProvider(context, Themes.isThemedIconEnabled(context));
+        mIconProvider = new LauncherIconProvider(context);
         mIconCache = new IconCache(mContext, mInvariantDeviceProfile,
                 iconCacheFileName, mIconProvider);
         mModel = new LauncherModel(context, this, mIconCache, new AppFilter(mContext),

src/com/android/launcher3/Utilities.java

@@ -76,9 +76,8 @@ import androidx.core.os.BuildCompat;
 import com.android.launcher3.dragndrop.FolderAdaptiveIcon;
 import com.android.launcher3.graphics.GridCustomizationsProvider;
 import com.android.launcher3.graphics.TintedDrawableSpan;
-import com.android.launcher3.icons.BitmapInfo;
-import com.android.launcher3.icons.FastBitmapDrawable;
 import com.android.launcher3.icons.ShortcutCachingLogic;
+import com.android.launcher3.icons.ThemedIconDrawable;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
 import com.android.launcher3.model.data.SearchActionItemInfo;
@@ -87,6 +86,7 @@ import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.shortcuts.ShortcutRequest;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.PackageManagerHelper;
+import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.BaseDragLayer;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
@@ -123,8 +123,9 @@ public final class Utilities {
 
     public static final boolean ATLEAST_R = Build.VERSION.SDK_INT >= Build.VERSION_CODES.R;
 
-    public static final boolean ATLEAST_S = BuildCompat.isAtLeastS()
-            || Build.VERSION.SDK_INT >= Build.VERSION_CODES.S;
+    public static final boolean ATLEAST_S = Build.VERSION.SDK_INT >= Build.VERSION_CODES.S;
+
+    public static final boolean ATLEAST_T = BuildCompat.isAtLeastT();
 
     /**
      * Set on a motion event dispatched from the nav bar. See {@link MotionEvent#setEdgeFlags(int)}.
@@ -672,11 +673,19 @@ public final class Utilities {
      * @param outObj this is set to the internal data associated with {@param info},
      *               eg {@link LauncherActivityInfo} or {@link ShortcutInfo}.
      */
+    @TargetApi(Build.VERSION_CODES.TIRAMISU)
     public static Drawable getFullDrawable(Context context, ItemInfo info, int width, int height,
             Object[] outObj) {
         Drawable icon = loadFullDrawableWithoutTheme(context, info, width, height, outObj);
-        if (icon instanceof BitmapInfo.Extender) {
-            icon = ((BitmapInfo.Extender) icon).getThemedDrawable(context);
+        if (ATLEAST_T && icon instanceof AdaptiveIconDrawable) {
+            AdaptiveIconDrawable aid = (AdaptiveIconDrawable) icon.mutate();
+            Drawable mono = aid.getMonochrome();
+            if (mono != null && Themes.isThemedIconEnabled(context)) {
+                int[] colors = ThemedIconDrawable.getColors(context);
+                mono = mono.mutate();
+                mono.setTint(colors[1]);
+                return new AdaptiveIconDrawable(new ColorDrawable(colors[0]), mono);
+            }
         }
         return icon;
     }
@@ -719,8 +728,7 @@ public final class Utilities {
             return icon;
         } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SEARCH_ACTION
                 && info instanceof SearchActionItemInfo) {
-            return new AdaptiveIconDrawable(
-                    new FastBitmapDrawable(((SearchActionItemInfo) info).bitmap), null);
+            return ((SearchActionItemInfo) info).bitmap.newIcon(context);
         } else {
             return null;
         }

src/com/android/launcher3/graphics/LauncherPreviewRenderer.java

@@ -133,23 +133,25 @@ public class LauncherPreviewRenderer extends ContextWrapper
             mObjectMap.put(InvariantDeviceProfile.INSTANCE, idp);
             mObjectMap.put(LauncherAppState.INSTANCE,
                     new LauncherAppState(this, null /* iconCacheFileName */));
-
         }
 
-        public LauncherIcons newLauncherIcons(Context context, boolean shapeDetection) {
+        /**
+         * Creates a new LauncherIcons for the preview, skipping the global pool
+         */
+        public LauncherIcons newLauncherIcons(Context context) {
             LauncherIconsForPreview launcherIconsForPreview = mIconPool.poll();
             if (launcherIconsForPreview != null) {
                 return launcherIconsForPreview;
             }
             return new LauncherIconsForPreview(context, mIdp.fillResIconDpi, mIdp.iconBitmapSize,
-                    -1 /* poolId */, shapeDetection);
+                    -1 /* poolId */);
         }
 
         private final class LauncherIconsForPreview extends LauncherIcons {
 
             private LauncherIconsForPreview(Context context, int fillResIconDpi, int iconBitmapSize,
-                    int poolId, boolean shapeDetection) {
-                super(context, fillResIconDpi, iconBitmapSize, poolId, shapeDetection);
+                    int poolId) {
+                super(context, fillResIconDpi, iconBitmapSize, poolId);
             }
 
             @Override

src/com/android/launcher3/icons/LauncherIconProvider.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2022 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.icons;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.content.res.XmlResourceParser;
+import android.text.TextUtils;
+import android.util.ArrayMap;
+import android.util.Log;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.Themes;
+
+import org.xmlpull.v1.XmlPullParser;
+
+import java.util.Collections;
+import java.util.Map;
+
+/**
+ * Extension of {@link IconProvider} with support for overriding theme icons
+ */
+public class LauncherIconProvider extends IconProvider {
+
+    private static final String TAG_ICON = "icon";
+    private static final String ATTR_PACKAGE = "package";
+    private static final String ATTR_DRAWABLE = "drawable";
+
+    private static final String TAG = "LIconProvider";
+    private static final Map<String, ThemeData> DISABLED_MAP = Collections.emptyMap();
+
+    private Map<String, ThemeData> mThemedIconMap;
+    private boolean mSupportsIconTheme;
+
+    public LauncherIconProvider(Context context) {
+        super(context);
+        setIconThemeSupported(Themes.isThemedIconEnabled(context));
+    }
+
+    /**
+     * Enables or disables icon theme support
+     */
+    public void setIconThemeSupported(boolean isSupported) {
+        mSupportsIconTheme = isSupported;
+        mThemedIconMap = isSupported ? null : DISABLED_MAP;
+    }
+
+    @Override
+    protected ThemeData getThemeDataForPackage(String packageName) {
+        return getThemedIconMap().get(packageName);
+    }
+
+    @Override
+    public String getSystemIconState() {
+        return super.getSystemIconState() + (mSupportsIconTheme ? ",with-theme" : ",no-theme");
+    }
+
+    private Map<String, ThemeData> getThemedIconMap() {
+        if (mThemedIconMap != null) {
+            return mThemedIconMap;
+        }
+        ArrayMap<String, ThemeData> map = new ArrayMap<>();
+        Resources res = mContext.getResources();
+        try (XmlResourceParser parser = res.getXml(R.xml.grayscale_icon_map)) {
+            final int depth = parser.getDepth();
+            int type;
+            while ((type = parser.next()) != XmlPullParser.START_TAG
+                    && type != XmlPullParser.END_DOCUMENT);
+
+            while (((type = parser.next()) != XmlPullParser.END_TAG
+                    || parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) {
+                if (type != XmlPullParser.START_TAG) {
+                    continue;
+                }
+                if (TAG_ICON.equals(parser.getName())) {
+                    String pkg = parser.getAttributeValue(null, ATTR_PACKAGE);
+                    int iconId = parser.getAttributeResourceValue(null, ATTR_DRAWABLE, 0);
+                    if (iconId != 0 && !TextUtils.isEmpty(pkg)) {
+                        map.put(pkg, new ThemeData(res, iconId));
+                    }
+                }
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "Unable to parse icon map", e);
+        }
+        mThemedIconMap = map;
+        return mThemedIconMap;
+    }
+}

src/com/android/launcher3/icons/LauncherIcons.java

@@ -21,6 +21,7 @@ import android.content.Context;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.graphics.LauncherPreviewRenderer;
+import com.android.launcher3.util.Themes;
 
 /**
  * Wrapper class to provide access to {@link BaseIconFactory} and also to provide pool of this class
@@ -32,18 +33,13 @@ public class LauncherIcons extends BaseIconFactory implements AutoCloseable {
     private static LauncherIcons sPool;
     private static int sPoolId = 0;
 
-    public static LauncherIcons obtain(Context context) {
-        return obtain(context, IconShape.getShape().enableShapeDetection());
-    }
-
     /**
      * Return a new Message instance from the global pool. Allows us to
      * avoid allocating new objects in many cases.
      */
-    public static LauncherIcons obtain(Context context, boolean shapeDetection) {
+    public static LauncherIcons obtain(Context context) {
         if (context instanceof LauncherPreviewRenderer.PreviewContext) {
-            return ((LauncherPreviewRenderer.PreviewContext) context).newLauncherIcons(context,
-                    shapeDetection);
+            return ((LauncherPreviewRenderer.PreviewContext) context).newLauncherIcons(context);
         }
 
         int poolId;
@@ -58,8 +54,7 @@ public class LauncherIcons extends BaseIconFactory implements AutoCloseable {
         }
 
         InvariantDeviceProfile idp = InvariantDeviceProfile.INSTANCE.get(context);
-        return new LauncherIcons(context, idp.fillResIconDpi, idp.iconBitmapSize, poolId,
-                shapeDetection);
+        return new LauncherIcons(context, idp.fillResIconDpi, idp.iconBitmapSize, poolId);
     }
 
     public static void clearPool() {
@@ -73,9 +68,9 @@ public class LauncherIcons extends BaseIconFactory implements AutoCloseable {
 
     private LauncherIcons next;
 
-    protected LauncherIcons(Context context, int fillResIconDpi, int iconBitmapSize, int poolId,
-            boolean shapeDetection) {
-        super(context, fillResIconDpi, iconBitmapSize, shapeDetection);
+    protected LauncherIcons(Context context, int fillResIconDpi, int iconBitmapSize, int poolId) {
+        super(context, fillResIconDpi, iconBitmapSize, IconShape.getShape().enableShapeDetection());
+        mMonoIconEnabled = Themes.isThemedIconEnabled(context);
         mPoolId = poolId;
     }