Support Live Tile in Quickstep (Pt1) - Z ordering

- Place Launcher above app surface.
- Use LauncherLayoutListener to clear the area where the current task is in order to punch a hole and reveal the app view underneath

Bug: 111697218
Test: Manual test

Change-Id: I4d4e0f1113a8e60566257c030ae9b591789eb3b3

7 files changed, 75 insertions, 22 deletions

diff --git a/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java b/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
index 1eaa8bc92..190628603 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/AllAppsState.java
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.uioverrides;
 
+import static com.android.launcher3.AbstractFloatingView.TYPE_QUICKSTEP_PREVIEW;
 import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
 
@@ -44,7 +45,7 @@ public class AllAppsState extends LauncherState {
 
     @Override
     public void onStateEnabled(Launcher launcher) {
-        AbstractFloatingView.closeAllOpenViews(launcher);
+        AbstractFloatingView.closeAllOpenViewsExcept(launcher, TYPE_QUICKSTEP_PREVIEW);
         dispatchWindowStateChanged(launcher);
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java b/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
index 0d77bca58..8f1d46c8d 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/OverviewState.java
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.uioverrides;
 
+import static com.android.launcher3.AbstractFloatingView.TYPE_QUICKSTEP_PREVIEW;
 import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
 import static com.android.launcher3.states.RotationHelper.REQUEST_ROTATE;
@@ -74,7 +75,7 @@ public class OverviewState extends LauncherState {
     public void onStateEnabled(Launcher launcher) {
         RecentsView rv = launcher.getOverviewPanel();
         rv.setOverviewStateEnabled(true);
-        AbstractFloatingView.closeAllOpenViews(launcher);
+        AbstractFloatingView.closeAllOpenViewsExcept(launcher, TYPE_QUICKSTEP_PREVIEW);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/ActivityControlHelper.java b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
index 2331a4e30..c809e2832 100644
--- a/quickstep/src/com/android/quickstep/ActivityControlHelper.java
+++ b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
@@ -40,6 +40,7 @@ import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
+import android.graphics.RectF;
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
@@ -537,6 +538,9 @@ public interface ActivityControlHelper<T extends BaseDraggingActivity> {
 
                 @Override
                 public void finish() { }
+
+                @Override
+                public void update(boolean shouldFinish, boolean isLongSwipe, RectF currentRect) { }
             };
         }
 
@@ -613,6 +617,8 @@ public interface ActivityControlHelper<T extends BaseDraggingActivity> {
         void setHandler(WindowTransformSwipeHandler handler);
 
         void finish();
+
+        void update(boolean shouldFinish, boolean isLongSwipe, RectF currentRect);
     }
 
     interface ActivityInitListener {
diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 6908b8978..9ea88842d 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -597,6 +597,11 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
     }
 
     private void updateFinalShiftUi() {
+        if (mRecentsAnimationWrapper.getController() != null && mLayoutListener != null) {
+            mLayoutListener.update(mCurrentShift.value > 1, mUiLongSwipeMode,
+                    mClipAnimationHelper.getCurrentRectWithInsets());
+        }
+
         final boolean passed = mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW;
         if (passed != mPassedOverviewThreshold) {
             mPassedOverviewThreshold = passed;
@@ -874,7 +879,6 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
         mLayoutListener.finish();
         mActivityControlHelper.getAlphaProperty(mActivity).setValue(1);
 
-        mRecentsView.setRunningTaskHidden(false);
         mRecentsView.setRunningTaskIconScaledDown(false);
         mQuickScrubController.cancelActiveQuickscrub();
     }
@@ -895,6 +899,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
         if (mWasLauncherAlreadyVisible && mLauncherTransitionController != null) {
             mLauncherTransitionController.setPlayFraction(1);
         }
+        mRecentsView.setRunningTaskHidden(false);
     }
 
     private void switchToScreenshot() {
diff --git a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
index 8c84f29b7..57a0e8f8f 100644
--- a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -77,10 +77,11 @@ public class ClipAnimationHelper {
     public final Rect mHomeStackBounds = new Rect();
 
     // The clip rect in source app window coordinates
-    private final Rect mClipRect = new Rect();
+    private final RectF mClipRectF = new RectF();
     private final RectFEvaluator mRectFEvaluator = new RectFEvaluator();
     private final Matrix mTmpMatrix = new Matrix();
     private final RectF mTmpRectF = new RectF();
+    private final RectF mCurrentRectWithInsets = new RectF();
 
     private float mTargetScale = 1f;
     private float mOffsetScale = 1f;
@@ -153,12 +154,12 @@ public class ClipAnimationHelper {
                     mTargetOffset.y  * offsetYProgress);
         }
 
-        mClipRect.left = (int) (mSourceWindowClipInsets.left * progress);
-        mClipRect.top = (int) (mSourceWindowClipInsets.top * progress);
-        mClipRect.right = (int)
-                (mSourceStackBounds.width() - (mSourceWindowClipInsets.right * progress));
-        mClipRect.bottom = (int)
-                (mSourceStackBounds.height() - (mSourceWindowClipInsets.bottom * progress));
+        mClipRectF.left = mSourceWindowClipInsets.left * progress;
+        mClipRectF.top = mSourceWindowClipInsets.top * progress;
+        mClipRectF.right =
+                mSourceStackBounds.width() - (mSourceWindowClipInsets.right * progress);
+        mClipRectF.bottom =
+                mSourceStackBounds.height() - (mSourceWindowClipInsets.bottom * progress);
 
         SurfaceParams[] params = new SurfaceParams[targetSet.unfilteredApps.length];
         for (int i = 0; i < targetSet.unfilteredApps.length; i++) {
@@ -166,11 +167,12 @@ public class ClipAnimationHelper {
             mTmpMatrix.setTranslate(app.position.x, app.position.y);
             Rect crop = app.sourceContainerBounds;
             float alpha = 1f;
+            int layer;
             if (app.mode == targetSet.targetMode) {
                 if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
                     mTmpMatrix.setRectToRect(mSourceRect, currentRect, ScaleToFit.FILL);
                     mTmpMatrix.postTranslate(app.position.x, app.position.y);
-                    crop = mClipRect;
+                    mClipRectF.roundOut(crop);
                 }
 
                 if (app.isNotInRecents
@@ -179,17 +181,22 @@ public class ClipAnimationHelper {
                 }
 
                 alpha = mTaskAlphaCallback.apply(app, alpha);
+                layer = RemoteAnimationProvider.getLayer(app, mBoostModeTargetLayers);
             } else {
                 crop = null;
+                layer = Integer.MAX_VALUE;
             }
-
-            params[i] = new SurfaceParams(app.leash, alpha, mTmpMatrix, crop,
-                    RemoteAnimationProvider.getLayer(app, mBoostModeTargetLayers));
+            params[i] = new SurfaceParams(app.leash, alpha, mTmpMatrix, crop, layer);
         }
         applyParams(syncTransactionApplier, params);
         return currentRect;
     }
 
+    public RectF getCurrentRectWithInsets() {
+        mTmpMatrix.mapRect(mCurrentRectWithInsets, mClipRectF);
+        return mCurrentRectWithInsets;
+    }
+
     private void applyParams(@Nullable SyncRtSurfaceTransactionApplier syncTransactionApplier,
             SurfaceParams[] params) {
         if (syncTransactionApplier != null) {
diff --git a/quickstep/src/com/android/quickstep/views/LauncherLayoutListener.java b/quickstep/src/com/android/quickstep/views/LauncherLayoutListener.java
index 61740d729..c12a57968 100644
--- a/quickstep/src/com/android/quickstep/views/LauncherLayoutListener.java
+++ b/quickstep/src/com/android/quickstep/views/LauncherLayoutListener.java
@@ -15,11 +15,17 @@
  */
 package com.android.quickstep.views;
 
-import static com.android.launcher3.states.RotationHelper.REQUEST_LOCK;
+import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 import static com.android.launcher3.states.RotationHelper.REQUEST_NONE;
 
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
+import android.graphics.RectF;
 import android.view.MotionEvent;
+import android.widget.FrameLayout;
 
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.Insettable;
@@ -34,12 +40,28 @@ public class LauncherLayoutListener extends AbstractFloatingView
         implements Insettable, LayoutListener {
 
     private final Launcher mLauncher;
+    private final Paint mPaint = new Paint();
     private WindowTransformSwipeHandler mHandler;
+    private RectF mCurrentRect;
 
     public LauncherLayoutListener(Launcher launcher) {
         super(launcher, null);
         mLauncher = launcher;
-        setVisibility(INVISIBLE);
+        mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
+        setLayoutParams(new FrameLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT));
+    }
+
+    @Override
+    public void update(boolean shouldFinish, boolean isLongSwipe, RectF currentRect) {
+        if (shouldFinish) {
+            finish();
+            return;
+        }
+
+        mCurrentRect = currentRect;
+
+        setWillNotDraw(mCurrentRect == null || isLongSwipe);
+        invalidate();
     }
 
     @Override
@@ -81,11 +103,6 @@ public class LauncherLayoutListener extends AbstractFloatingView
     }
 
     @Override
-    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        setMeasuredDimension(1, 1);
-    }
-
-    @Override
     public void logActionCommand(int command) {
         // We should probably log the weather
     }
@@ -97,8 +114,13 @@ public class LauncherLayoutListener extends AbstractFloatingView
 
     @Override
     public void finish() {
-        setHandler(null);
         close(false);
+        setHandler(null);
         mLauncher.getRotationHelper().setStateHandlerRequest(REQUEST_NONE);
     }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        canvas.drawRect(mCurrentRect, mPaint);
+    }
 }
diff --git a/src/com/android/launcher3/AbstractFloatingView.java b/src/com/android/launcher3/AbstractFloatingView.java
index 45751328a..7cab18d8d 100644
--- a/src/com/android/launcher3/AbstractFloatingView.java
+++ b/src/com/android/launcher3/AbstractFloatingView.java
@@ -219,6 +219,17 @@ public abstract class AbstractFloatingView extends LinearLayout implements Touch
         closeAllOpenViews(activity, true);
     }
 
+    public static void closeAllOpenViewsExcept(ActivityContext activity, boolean animate,
+                                               @FloatingViewType int type) {
+        closeOpenViews(activity, animate, TYPE_ALL & ~type);
+        activity.finishAutoCancelActionMode();
+    }
+
+    public static void closeAllOpenViewsExcept(ActivityContext activity,
+                                               @FloatingViewType int type) {
+        closeAllOpenViewsExcept(activity, true, type);
+    }
+
     public static AbstractFloatingView getTopOpenView(ActivityContext activity) {
         return getTopOpenViewWithType(activity, TYPE_ALL);
     }