[DO NOT MERGE] Support blacklisting live wallpapers from showing sysui scrims am: 3b5f2224c6

Change-Id: I430906d126f08ab77dc63e06462fc68ccfe18322

quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/RecentsRootView.java

@@ -80,7 +80,8 @@ public class RecentsRootView extends BaseDragLayer<RecentsActivity> {
         if (!insets.equals(mInsets)) {
             super.setInsets(insets);
         }
-        setBackground(insets.top == 0 ? null
+        setBackground(insets.top == 0  || !mAllowSysuiScrims
+                ? null
                 : Themes.getAttrDrawable(getContext(), R.attr.workspaceStatusBarScrim));
     }
 

res/values/config.xml

@@ -118,4 +118,7 @@
 
 <!-- Recents -->
     <item type="id" name="overview_panel"/>
+
+    <string-array name="live_wallpapers_remove_sysui_scrims">
+    </string-array>
 </resources>

src/com/android/launcher3/dragndrop/DragLayer.java

@@ -556,7 +556,7 @@ public class DragLayer extends BaseDragLayer<Launcher> {
     @Override
     public void setInsets(Rect insets) {
         super.setInsets(insets);
-        mWorkspaceScrim.onInsetsChanged(insets);
+        mWorkspaceScrim.onInsetsChanged(insets, mAllowSysuiScrims);
         mOverviewScrim.onInsetsChanged(insets);
     }
 

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

@@ -187,10 +187,13 @@ public class WorkspaceAndHotseatScrim extends Scrim {
         anim.start();
     }
 
-    public void onInsetsChanged(Rect insets) {
-        mDrawTopScrim = mTopScrim != null && insets.top > 0;
-        mDrawBottomScrim = mBottomMask != null &&
-                !mLauncher.getDeviceProfile().isVerticalBarLayout();
+    /**
+     * Determines whether to draw the top and/or bottom scrim based on new insets.
+     */
+    public void onInsetsChanged(Rect insets, boolean allowSysuiScrims) {
+        mDrawTopScrim = allowSysuiScrims && mTopScrim != null && insets.top > 0;
+        mDrawBottomScrim = allowSysuiScrims && mBottomMask != null
+                && !mLauncher.getDeviceProfile().isVerticalBarLayout();
     }
 
     @Override

src/com/android/launcher3/views/BaseDragLayer.java

@@ -23,7 +23,13 @@ import static android.view.MotionEvent.ACTION_UP;
 import static com.android.launcher3.util.DefaultDisplay.getSingleFrameMs;
 
 import android.annotation.TargetApi;
+import android.app.WallpaperInfo;
+import android.app.WallpaperManager;
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
 import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.graphics.Insets;
 import android.graphics.Rect;
 import android.graphics.RectF;
@@ -39,8 +45,11 @@ import android.view.WindowInsets;
 import android.view.accessibility.AccessibilityEvent;
 import android.widget.FrameLayout;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.InsettableFrameLayout;
+import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.MultiValueAlpha;
@@ -100,6 +109,14 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
 
     protected final T mActivity;
     private final MultiValueAlpha mMultiValueAlpha;
+    private final WallpaperManager mWallpaperManager;
+    private final BroadcastReceiver mWallpaperChangeReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            onWallpaperChanged();
+        }
+    };
+    private final String[] mWallpapersWithoutSysuiScrims;
 
     // All the touch controllers for the view
     protected TouchController[] mControllers;
@@ -110,10 +127,15 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
 
     private TouchCompleteListener mTouchCompleteListener;
 
+    protected boolean mAllowSysuiScrims = true;
+
     public BaseDragLayer(Context context, AttributeSet attrs, int alphaChannelCount) {
         super(context, attrs);
         mActivity = (T) ActivityContext.lookupContext(context);
         mMultiValueAlpha = new MultiValueAlpha(this, alphaChannelCount);
+        mWallpaperManager = context.getSystemService(WallpaperManager.class);
+        mWallpapersWithoutSysuiScrims = getResources().getStringArray(
+                R.array.live_wallpapers_remove_sysui_scrims);
     }
 
     /**
@@ -513,4 +535,47 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
         }
         return super.dispatchApplyWindowInsets(insets);
     }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        mActivity.registerReceiver(mWallpaperChangeReceiver,
+                new IntentFilter(Intent.ACTION_WALLPAPER_CHANGED));
+        onWallpaperChanged();
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        mActivity.unregisterReceiver(mWallpaperChangeReceiver);
+    }
+
+    private void onWallpaperChanged() {
+        WallpaperInfo newWallpaperInfo = mWallpaperManager.getWallpaperInfo();
+        boolean oldAllowSysuiScrims = mAllowSysuiScrims;
+        mAllowSysuiScrims = computeAllowSysuiScrims(newWallpaperInfo);
+        if (mAllowSysuiScrims != oldAllowSysuiScrims) {
+            // Reapply insets so scrim can be removed or re-added if necessary.
+            setInsets(mInsets);
+        }
+    }
+
+    /**
+     * Determines whether we can scrim the status bar and nav bar for the given wallpaper by
+     * checking against a list of live wallpapers that we don't show the scrims on.
+     */
+    private boolean computeAllowSysuiScrims(@Nullable WallpaperInfo newWallpaperInfo) {
+        if (newWallpaperInfo == null) {
+            // New wallpaper is static, not live. Thus, blacklist isn't applicable.
+            return true;
+        }
+        ComponentName newWallpaper = newWallpaperInfo.getComponent();
+        for (String wallpaperWithoutScrim : mWallpapersWithoutSysuiScrims) {
+            if (newWallpaper.equals(ComponentName.unflattenFromString(wallpaperWithoutScrim))) {
+                // New wallpaper is blacklisted from showing a scrim.
+                return false;
+            }
+        }
+        return true;
+    }
 }