Adds ability to use LauncherPreviewRenderer in Sandbox.

This is mostly a proof-of-concept for future use and
tweaks as desired by UX.

The idea is to better replicate the actual UI.

Screenshot: https://drive.google.com/file/d/1EGDgcrSH2QZuSh6P3zWLBl6L8Xd-gtFY/view?usp=sharing

Bug: 148542211
Change-Id: Ibed4b8118346ef72599463c9fd6a2f71166993fd

quickstep/res/layout/gesture_tutorial_fragment.xml

@@ -13,7 +13,8 @@
     See the License for the specific language governing permissions and
     limitations under the License.
 -->
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<com.android.quickstep.interaction.RootSandboxLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="?android:attr/colorBackground">
@@ -93,11 +94,11 @@
         style="@style/TextAppearance.GestureTutorial.Feedback"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_above="@id/gesture_tutorial_fragment_action_button"
+        android:layout_below="@id/gesture_tutorial_fragment_titles_container"
         android:layout_centerHorizontal="true"
         android:layout_marginStart="@dimen/gesture_tutorial_feedback_margin_start_end"
         android:layout_marginEnd="@dimen/gesture_tutorial_feedback_margin_start_end"
-        android:layout_marginBottom="10dp"/>
+        android:layout_marginTop="40dp"/>
 
     <!-- android:stateListAnimator="@null" removes shadow and normal on click behavior (increase
          of elevation and shadow) which is replaced by ripple effect in android:foreground -->
@@ -126,4 +127,4 @@
         android:background="@null"
         android:foreground="?android:attr/selectableItemBackgroundBorderless"
         android:stateListAnimator="@null"/>
-</RelativeLayout>
+</com.android.quickstep.interaction.RootSandboxLayout>

quickstep/src/com/android/quickstep/interaction/EdgeBackGestureHandler.java

@@ -143,6 +143,10 @@ public class EdgeBackGestureHandler implements OnTouchListener {
         return false;
     }
 
+    boolean onInterceptTouch(MotionEvent motionEvent) {
+        return isWithinTouchRegion((int) motionEvent.getX(), (int) motionEvent.getY());
+    }
+
     private boolean isWithinTouchRegion(int x, int y) {
         // Disallow if too far from the edge
         if (x > mEdgeWidth + mLeftInset && x < (mDisplaySize.x - mEdgeWidth - mRightInset)) {

quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java

@@ -250,6 +250,12 @@ public class NavBarGestureHandler implements OnTouchListener,
         return intercepted;
     }
 
+    boolean onInterceptTouch(MotionEvent event) {
+        return mAssistantLeftRegion.contains(event.getX(), event.getY())
+                || mAssistantRightRegion.contains(event.getX(), event.getY())
+                || event.getY() >= mDisplaySize.y - mBottomGestureHeight;
+    }
+
     protected void onMotionPauseDetected() {
         VibratorWrapper.INSTANCE.get(mContext).vibrate(OVERVIEW_HAPTIC);
     }

quickstep/src/com/android/quickstep/interaction/RootSandboxLayout.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2020 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.quickstep.interaction;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.RelativeLayout;
+
+import androidx.fragment.app.FragmentManager;
+
+/** Root layout that TutorialFragment uses to intercept motion events. */
+public class RootSandboxLayout extends RelativeLayout {
+    public RootSandboxLayout(Context context) {
+        super(context);
+    }
+
+    public RootSandboxLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public RootSandboxLayout(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent motionEvent) {
+        return ((TutorialFragment) FragmentManager.findFragment(this))
+                .onInterceptTouch(motionEvent);
+    }
+}

quickstep/src/com/android/quickstep/interaction/SandboxLauncherRenderer.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2020 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.quickstep.interaction;
+
+import android.content.Context;
+import android.view.View;
+
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.graphics.LauncherPreviewRenderer;
+
+/** Renders a fake Launcher for use in the Sandbox. */
+class SandboxLauncherRenderer extends LauncherPreviewRenderer {
+    SandboxLauncherRenderer(Context context, InvariantDeviceProfile idp, boolean migrated) {
+        super(context, idp, migrated);
+    }
+
+    @Override
+    public boolean shouldShowRealLauncherPreview() {
+        return false;
+    }
+
+    @Override
+    public boolean shouldShowQsb() {
+        return false;
+    }
+
+    @Override
+    public View.OnLongClickListener getWorkspaceChildOnLongClickListener() {
+        return null;
+    }
+}

quickstep/src/com/android/quickstep/interaction/TutorialController.java

@@ -47,6 +47,7 @@ abstract class TutorialController implements BackGestureAttemptCallback,
     final TextView mTitleTextView;
     final TextView mSubtitleTextView;
     final TextView mFeedbackView;
+    final View mLauncherView;
     final ClipIconView mFakeIconView;
     final View mFakeTaskView;
     final View mRippleView;
@@ -68,6 +69,7 @@ abstract class TutorialController implements BackGestureAttemptCallback,
         mTitleTextView = rootView.findViewById(R.id.gesture_tutorial_fragment_title_view);
         mSubtitleTextView = rootView.findViewById(R.id.gesture_tutorial_fragment_subtitle_view);
         mFeedbackView = rootView.findViewById(R.id.gesture_tutorial_fragment_feedback_view);
+        mLauncherView = tutorialFragment.getLauncherView();
         mFakeIconView = rootView.findViewById(R.id.gesture_tutorial_fake_icon_view);
         mFakeTaskView = rootView.findViewById(R.id.gesture_tutorial_fake_task_view);
         mRippleView = rootView.findViewById(R.id.gesture_tutorial_ripple_view);
@@ -162,8 +164,10 @@ abstract class TutorialController implements BackGestureAttemptCallback,
 
         if (isComplete()) {
             hideHandCoachingAnimation();
+            mLauncherView.setVisibility(View.INVISIBLE);
         } else {
             showHandCoachingAnimation();
+            mLauncherView.setVisibility(View.VISIBLE);
         }
     }
 

quickstep/src/com/android/quickstep/interaction/TutorialFragment.java

@@ -31,6 +31,7 @@ import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 
+import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.R;
 import com.android.quickstep.interaction.TutorialController.TutorialType;
 
@@ -45,6 +46,7 @@ abstract class TutorialFragment extends Fragment implements OnTouchListener {
     TutorialHandAnimation mHandCoachingAnimation;
     EdgeBackGestureHandler mEdgeBackGestureHandler;
     NavBarGestureHandler mNavBarGestureHandler;
+    private View mLauncherView;
 
     public static TutorialFragment newInstance(TutorialType tutorialType) {
         TutorialFragment fragment = getFragmentForTutorialType(tutorialType);
@@ -114,8 +116,11 @@ abstract class TutorialFragment extends Fragment implements OnTouchListener {
             return insets;
         });
         mRootView.setOnTouchListener(this);
-        mHandCoachingAnimation = new TutorialHandAnimation(getContext(), mRootView,
-                getHandAnimationResId());
+        mHandCoachingAnimation =
+                new TutorialHandAnimation(getContext(), mRootView, getHandAnimationResId());
+        InvariantDeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(getContext());
+        mLauncherView = new SandboxLauncherRenderer(getContext(), dp, true).getRenderedView();
+        ((ViewGroup) mRootView).addView(mLauncherView, 0);
         return mRootView;
     }
 
@@ -133,11 +138,17 @@ abstract class TutorialFragment extends Fragment implements OnTouchListener {
 
     @Override
     public boolean onTouch(View view, MotionEvent motionEvent) {
-        // Note: Using logical or to ensure both functions get called.
+        // Note: Using logical-or to ensure both functions get called.
         return mEdgeBackGestureHandler.onTouch(view, motionEvent)
                 | mNavBarGestureHandler.onTouch(view, motionEvent);
     }
 
+    boolean onInterceptTouch(MotionEvent motionEvent) {
+        // Note: Using logical-or to ensure both functions get called.
+        return mEdgeBackGestureHandler.onInterceptTouch(motionEvent)
+                | mNavBarGestureHandler.onInterceptTouch(motionEvent);
+    }
+
     void onAttachedToWindow() {
         mEdgeBackGestureHandler.setViewGroupParent((ViewGroup) getRootView());
     }
@@ -168,6 +179,10 @@ abstract class TutorialFragment extends Fragment implements OnTouchListener {
         return mRootView;
     }
 
+    View getLauncherView() {
+        return mLauncherView;
+    }
+
     TutorialHandAnimation getHandAnimation() {
         return mHandCoachingAnimation;
     }

src/com/android/launcher3/CellLayout.java

@@ -323,11 +323,8 @@ public class CellLayout extends ViewGroup {
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
-        if (mTouchHelper != null
-                || (mInterceptTouchListener != null && mInterceptTouchListener.onTouch(this, ev))) {
-            return true;
-        }
-        return false;
+        return mTouchHelper != null
+                || (mInterceptTouchListener != null && mInterceptTouchListener.onTouch(this, ev));
     }
 
     public void enableHardwareLayer(boolean hasLayer) {

src/com/android/launcher3/WorkspaceLayoutManager.java

@@ -130,12 +130,16 @@ public interface WorkspaceLayoutManager {
         }
 
         child.setHapticFeedbackEnabled(false);
-        child.setOnLongClickListener(ItemLongClickListener.INSTANCE_WORKSPACE);
+        child.setOnLongClickListener(getWorkspaceChildOnLongClickListener());
         if (child instanceof DropTarget) {
             onAddDropTarget((DropTarget) child);
         }
     }
 
+    default View.OnLongClickListener getWorkspaceChildOnLongClickListener() {
+        return ItemLongClickListener.INSTANCE_WORKSPACE;
+    }
+
     Hotseat getHotseat();
 
     CellLayout getScreenWithId(int screenId);

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

@@ -513,8 +513,7 @@ public class LauncherPreviewRenderer extends ContextThemeWrapper
         }
 
         // Setup search view
-        SearchUiManager searchUiManager =
-                mRootView.findViewById(R.id.search_container_all_apps);
+        SearchUiManager searchUiManager = mRootView.findViewById(R.id.search_container_all_apps);
         mRootView.findViewById(R.id.apps_view).setTranslationY(
                 mDp.heightPx - searchUiManager.getScrollRangeDelta(mInsets));
         ViewGroup searchView = (ViewGroup) searchUiManager;