1 files changed, 85 insertions, 0 deletions
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
index b601834f3..c2cb720ae 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -35,6 +35,7 @@ import android.os.Build;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
+import android.widget.FrameLayout;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Hotseat;
@@ -45,11 +46,14 @@ import com.android.launcher3.R;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.appprediction.PredictionUiStateManager.Client;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.views.ScrimView;
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.util.ClipAnimationHelper;
 import com.android.quickstep.util.ClipAnimationHelper.TransformParams;
 import com.android.quickstep.util.LayoutUtils;
+import com.android.systemui.plugins.PluginListener;
+import com.android.systemui.plugins.RecentsExtraCard;
 
 /**
  * {@link RecentsView} used in Launcher activity
@@ -61,6 +65,25 @@ public class LauncherRecentsView extends RecentsView<Launcher> implements StateL
 
     private final TransformParams mTransformParams = new TransformParams();
 
+    private RecentsExtraCard mRecentsExtraCardPlugin;
+    private RecentsExtraViewContainer mRecentsExtraViewContainer;
+    private PluginListener<RecentsExtraCard> mRecentsExtraCardPluginListener =
+            new PluginListener<RecentsExtraCard>() {
+        @Override
+        public void onPluginConnected(RecentsExtraCard recentsExtraCard, Context context) {
+            createRecentsExtraCard();
+            mRecentsExtraCardPlugin = recentsExtraCard;
+            mRecentsExtraCardPlugin.setupView(context, mRecentsExtraViewContainer, mActivity);
+        }
+
+        @Override
+        public void onPluginDisconnected(RecentsExtraCard plugin) {
+            removeView(mRecentsExtraViewContainer);
+            mRecentsExtraCardPlugin = null;
+            mRecentsExtraViewContainer = null;
+        }
+    };
+
     public LauncherRecentsView(Context context) {
         this(context, null);
     }
@@ -285,4 +308,66 @@ public class LauncherRecentsView extends RecentsView<Launcher> implements StateL
         }
         return super.shouldStealTouchFromSiblingsBelow(ev);
     }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext())
+                .addPluginListener(mRecentsExtraCardPluginListener, RecentsExtraCard.class);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        PluginManagerWrapper.INSTANCE.get(getContext()).removePluginListener(
+                mRecentsExtraCardPluginListener);
+    }
+
+    @Override
+    protected int computeMinScrollX() {
+        if (canComputeScrollX() && !mIsRtl) {
+            return computeScrollX();
+        }
+        return super.computeMinScrollX();
+    }
+
+    @Override
+    protected int computeMaxScrollX() {
+        if (canComputeScrollX() && mIsRtl) {
+            return computeScrollX();
+        }
+        return super.computeMaxScrollX();
+    }
+
+    private boolean canComputeScrollX() {
+        return mRecentsExtraCardPlugin != null && getTaskViewCount() > 0
+                && !mDisallowScrollToClearAll;
+    }
+
+    private int computeScrollX() {
+        int scrollIndex = getTaskViewStartIndex() - 1;
+        while (scrollIndex >= 0 && getChildAt(scrollIndex) instanceof RecentsExtraViewContainer
+                && ((RecentsExtraViewContainer) getChildAt(scrollIndex)).isScrollable()) {
+            scrollIndex--;
+        }
+        return getScrollForPage(scrollIndex + 1);
+    }
+
+    private void createRecentsExtraCard() {
+        mRecentsExtraViewContainer = new RecentsExtraViewContainer(getContext());
+        FrameLayout.LayoutParams helpCardParams =
+                new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
+                        FrameLayout.LayoutParams.MATCH_PARENT);
+        mRecentsExtraViewContainer.setLayoutParams(helpCardParams);
+        mRecentsExtraViewContainer.setScrollable(true);
+        addView(mRecentsExtraViewContainer, 0);
+    }
+
+    @Override
+    public void resetTaskVisuals() {
+        super.resetTaskVisuals();
+        if (mRecentsExtraViewContainer != null) {
+            mRecentsExtraViewContainer.setAlpha(mContentAlpha);
+        }
+    }
 }