diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index 01893e9..ef6bd3d 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -16,11 +16,6 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.compat.AccessibilityManagerCompat.isAccessibilityEnabled;
-import static com.android.launcher3.compat.AccessibilityManagerCompat.isObservedEventType;
-import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;
-import static com.android.launcher3.touch.OverScroll.OVERSCROLL_DAMP_FACTOR;
-
 import android.animation.LayoutTransition;
 import android.animation.TimeInterpolator;
 import android.annotation.SuppressLint;
@@ -35,6 +30,7 @@
 import android.view.InputDevice;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
+import android.view.Surface;
 import android.view.VelocityTracker;
 import android.view.View;
 import android.view.ViewConfiguration;
@@ -49,13 +45,25 @@
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.model.PagedViewOrientedState;
 import com.android.launcher3.pageindicators.PageIndicator;
+import com.android.launcher3.touch.PortraitPagedViewHandler;
 import com.android.launcher3.touch.OverScroll;
+import com.android.launcher3.touch.PagedOrientationHandler;
+import com.android.launcher3.touch.PagedOrientationHandler.ChildBounds;
 import com.android.launcher3.util.OverScroller;
 import com.android.launcher3.util.Thunk;
 
 import java.util.ArrayList;
 
+import static com.android.launcher3.compat.AccessibilityManagerCompat.isAccessibilityEnabled;
+import static com.android.launcher3.compat.AccessibilityManagerCompat.isObservedEventType;
+import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;
+import static com.android.launcher3.touch.OverScroll.OVERSCROLL_DAMP_FACTOR;
+import static com.android.launcher3.touch.PagedOrientationHandler.CANVAS_TRANSLATE;
+import static com.android.launcher3.touch.PagedOrientationHandler.VIEW_SCROLL_BY;
+import static com.android.launcher3.touch.PagedOrientationHandler.VIEW_SCROLL_TO;
+
 /**
  * An abstraction of the original Workspace which supports browsing through a
  * sequential list of "pages"
@@ -64,6 +72,8 @@
     private static final String TAG = "PagedView";
     private static final boolean DEBUG = false;
 
+    public static boolean sFlagForcedRotation = false;
+
     public static final int INVALID_PAGE = -1;
     protected static final ComputePageScrollsLogic SIMPLE_SCROLL_LOGIC = (v) -> v.getVisibility() != GONE;
 
@@ -97,8 +107,8 @@
 
     @ViewDebug.ExportedProperty(category = "launcher")
     protected int mNextPage = INVALID_PAGE;
-    protected int mMinScrollX;
-    protected int mMaxScrollX;
+    protected int mMaxScroll;
+    protected int mMinScroll;
     protected OverScroller mScroller;
     private Interpolator mDefaultInterpolator;
     private VelocityTracker mVelocityTracker;
@@ -106,9 +116,12 @@
 
     private float mDownMotionX;
     private float mDownMotionY;
-    private float mLastMotionX;
-    private float mLastMotionXRemainder;
-    private float mTotalMotionX;
+    private float mDownMotionPrimary;
+    private float mLastMotion;
+    private float mLastMotionRemainder;
+    private float mTotalMotion;
+    protected PagedOrientationHandler mOrientationHandler = new PortraitPagedViewHandler();
+    protected final PagedViewOrientedState mOrientationState = new PagedViewOrientedState();
 
     protected int[] mPageScrolls;
     private boolean mIsBeingDragged;
@@ -123,11 +136,14 @@
 
     protected boolean mIsPageInTransition = false;
 
-    protected float mSpringOverScrollX;
+    protected float mSpringOverScroll;
 
     protected boolean mWasInOverscroll = false;
 
-    protected int mUnboundedScrollX;
+    protected int mUnboundedScroll;
+
+    protected int mLayoutRotation = Surface.ROTATION_0;
+    protected int mDisplayRotation = Surface.ROTATION_0;
 
     // Page Indicator
     @Thunk int mPageIndicatorViewId;
@@ -166,11 +182,12 @@
      * Initializes various states for this workspace.
      */
     protected void init() {
-        mScroller = new OverScroller(getContext());
+        Context context = getContext();
+        mScroller = new OverScroller(context);
         setDefaultInterpolator(Interpolators.SCROLL);
         mCurrentPage = 0;
 
-        final ViewConfiguration configuration = ViewConfiguration.get(getContext());
+        final ViewConfiguration configuration = ViewConfiguration.get(context);
         mTouchSlop = configuration.getScaledPagingTouchSlop();
         mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
 
@@ -182,6 +199,8 @@
         if (Utilities.ATLEAST_OREO) {
             setDefaultFocusHighlightEnabled(false);
         }
+
+        sFlagForcedRotation = Utilities.isForcedRotation(context);
     }
 
     protected void setDefaultInterpolator(Interpolator interpolator) {
@@ -236,12 +255,12 @@
      */
     protected void updateCurrentPageScroll() {
         // If the current page is invalid, just reset the scroll position to zero
-        int newX = 0;
+        int newPosition = 0;
         if (0 <= mCurrentPage && mCurrentPage < getPageCount()) {
-            newX = getScrollForPage(mCurrentPage);
+            newPosition = getScrollForPage(mCurrentPage);
         }
-        scrollTo(newX, 0);
-        mScroller.startScroll(mScroller.getCurrPos(), newX - mScroller.getCurrPos());
+        mOrientationHandler.set(this, VIEW_SCROLL_TO, newPosition);
+        mOrientationHandler.scrollerStartScroll(mScroller, newPosition);
         forceFinishScroller(true);
     }
 
@@ -285,7 +304,7 @@
         int dir = !mIsRtl ? 1 : - 1;
         int currScroll = getScrollForPage(page);
         int prevScroll;
-        while (currScroll < mMinScrollX) {
+        while (currScroll < mMinScroll) {
             page += dir;
             prevScroll = currScroll;
             currScroll = getScrollForPage(page);
@@ -294,7 +313,7 @@
                 break;
             }
         }
-        while (currScroll > mMaxScrollX) {
+        while (currScroll > mMaxScroll) {
             page -= dir;
             prevScroll = currScroll;
             currScroll = getScrollForPage(page);
@@ -378,45 +397,73 @@
                 AccessibilityEvent.TYPE_VIEW_FOCUSED, null);
     }
 
-    protected int getUnboundedScrollX() {
-        return mUnboundedScrollX;
+    protected int getUnboundedScroll() {
+        return mUnboundedScroll;
+    }
+
+    protected void updateLayoutRotation(int touchRotation) {
+        setLayoutRotation(touchRotation, mDisplayRotation);
+    }
+
+    /** @param touchRotation Must be one of {@link android.view.Surface.ROTATION_0/90/180/270} */
+    public void setLayoutRotation(int touchRotation, int displayRotation) {
+        if (mLayoutRotation == touchRotation && mDisplayRotation == displayRotation) {
+            return;
+        }
+
+        mOrientationState.update(touchRotation, displayRotation);
+        mOrientationHandler = mOrientationState.getOrientationHandler();
+        mLayoutRotation = touchRotation;
+        mDisplayRotation = displayRotation;
+        requestLayout();
+    }
+
+    public PagedViewOrientedState getPagedViewOrientedState() {
+        return mOrientationState;
+    }
+
+    public PagedOrientationHandler getPagedOrientationHandler() {
+        return getPagedViewOrientedState().getOrientationHandler();
+    }
+
+    public void disableMultipleLayoutRotations(boolean disable) {
+        mOrientationState.disableMultipleOrientations(disable);
+        mOrientationHandler = mOrientationState.getOrientationHandler();
+        requestLayout();
     }
 
     @Override
     public void scrollBy(int x, int y) {
-        scrollTo(getUnboundedScrollX() + x, getScrollY() + y);
+        mOrientationHandler.delegateScrollBy(this, getUnboundedScroll(), x, y);
     }
 
     @Override
     public void scrollTo(int x, int y) {
-        mUnboundedScrollX = x;
+        int primaryScroll = mOrientationHandler.getPrimaryValue(x, y);
+        int secondaryScroll = mOrientationHandler.getSecondaryValue(x, y);
+        mUnboundedScroll = primaryScroll;
 
-        boolean isXBeforeFirstPage = mIsRtl ? (x > mMaxScrollX) : (x < mMinScrollX);
-        boolean isXAfterLastPage = mIsRtl ? (x < mMinScrollX) : (x > mMaxScrollX);
-
-        if (!isXBeforeFirstPage && !isXAfterLastPage) {
-            mSpringOverScrollX = 0;
+        boolean isBeforeFirstPage = mIsRtl ?
+            (primaryScroll > mMaxScroll) : (primaryScroll < mMinScroll);
+        boolean isAfterLastPage = mIsRtl ?
+            (primaryScroll < mMinScroll) : (primaryScroll > mMaxScroll);
+        if (!isBeforeFirstPage && !isAfterLastPage) {
+            mSpringOverScroll = 0;
         }
 
-        if (isXBeforeFirstPage) {
-            super.scrollTo(mIsRtl ? mMaxScrollX : mMinScrollX, y);
+        if (isBeforeFirstPage) {
+            mOrientationHandler.delegateScrollTo(this,
+                secondaryScroll, mIsRtl ? mMaxScroll : mMinScroll);
             if (mAllowOverScroll) {
                 mWasInOverscroll = true;
-                if (mIsRtl) {
-                    overScroll(x - mMaxScrollX);
-                } else {
-                    overScroll(x - mMinScrollX);
-                }
+                overScroll(primaryScroll - (mIsRtl ? mMaxScroll : mMinScroll));
             }
-        } else if (isXAfterLastPage) {
-            super.scrollTo(mIsRtl ? mMinScrollX : mMaxScrollX, y);
+        } else if (isAfterLastPage) {
+            mOrientationHandler.delegateScrollTo(this,
+                secondaryScroll, mIsRtl ? mMinScroll : mMaxScroll);
             if (mAllowOverScroll) {
                 mWasInOverscroll = true;
-                if (mIsRtl) {
-                    overScroll(x - mMinScrollX);
-                } else {
-                    overScroll(x - mMaxScrollX);
-                }
+                overScroll(primaryScroll - (mIsRtl ? mMinScroll : mMaxScroll));
             }
         } else {
             if (mWasInOverscroll) {
@@ -425,7 +472,13 @@
             }
             super.scrollTo(x, y);
         }
+    }
 
+    /**
+     * Helper for {@link PagedOrientationHandler} to be able to call parent's scrollTo method
+     */
+    public void superScrollTo(int x, int y) {
+        super.scrollTo(x, y);
     }
 
     private void sendScrollAccessibilityEvent() {
@@ -436,9 +489,7 @@
                 ev.setScrollable(true);
                 ev.setScrollX(getScrollX());
                 ev.setScrollY(getScrollY());
-                ev.setMaxScrollX(mMaxScrollX);
-                ev.setMaxScrollY(0);
-
+                mOrientationHandler.setMaxScroll(ev, mMaxScroll);
                 sendAccessibilityEventUnchecked(ev);
             }
         }
@@ -459,9 +510,10 @@
     protected boolean computeScrollHelper(boolean shouldInvalidate) {
         if (mScroller.computeScrollOffset()) {
             // Don't bother scrolling if the page does not need to be moved
-            if (getUnboundedScrollX() != mScroller.getCurrPos()
-                    || getScrollX() != mScroller.getCurrPos()) {
-                scrollTo(mScroller.getCurrPos(), 0);
+            int currentScroll = mOrientationHandler.getPrimaryScroll(this);
+            if (mUnboundedScroll != mScroller.getCurrPos()
+                || currentScroll != mScroller.getCurrPos()) {
+                mOrientationHandler.set(this, VIEW_SCROLL_TO, mScroller.getCurrPos());
             }
             if (shouldInvalidate) {
                 invalidate();
@@ -580,7 +632,8 @@
 
         if (DEBUG) Log.d(TAG, "PagedView.onLayout()");
 
-        if (getPageScrolls(mPageScrolls, true, SIMPLE_SCROLL_LOGIC)) {
+        boolean isScrollChanged = getPageScrolls(mPageScrolls, true, SIMPLE_SCROLL_LOGIC);
+        if (isScrollChanged) {
             pageScrollChanged = true;
         }
 
@@ -621,7 +674,6 @@
     /**
      * Initializes {@code outPageScrolls} with scroll positions for view at that index. The length
      * of {@code outPageScrolls} should be same as the the childCount
-     *
      */
     protected boolean getPageScrolls(int[] outPageScrolls, boolean layoutChildren,
             ComputePageScrollsLogic scrollLogic) {
@@ -631,36 +683,30 @@
         final int endIndex = mIsRtl ? -1 : childCount;
         final int delta = mIsRtl ? -1 : 1;
 
-        final int verticalCenter = (getPaddingTop() + getMeasuredHeight() + mInsets.top
-                - mInsets.bottom - getPaddingBottom()) / 2;
+        final int pageCenter = mOrientationHandler.getCenterForPage(this, mInsets);
 
-        final int scrollOffsetLeft = mInsets.left + getPaddingLeft();
-        final int scrollOffsetRight = getWidth() - getPaddingRight() - mInsets.right;
+        final int scrollOffsetStart = mOrientationHandler.getScrollOffsetStart(this, mInsets);
+        final int scrollOffsetEnd = mOrientationHandler.getScrollOffsetEnd(this, mInsets);
         boolean pageScrollChanged = false;
 
-        for (int i = startIndex, childLeft = scrollOffsetLeft; i != endIndex; i += delta) {
+        for (int i = startIndex, childStart = scrollOffsetStart; i != endIndex; i += delta) {
             final View child = getPageAt(i);
             if (scrollLogic.shouldIncludeView(child)) {
-                final int childWidth = child.getMeasuredWidth();
-                final int childRight = childLeft + childWidth;
-
-                if (layoutChildren) {
-                    final int childHeight = child.getMeasuredHeight();
-                    final int childTop = verticalCenter - childHeight / 2;
-                    child.layout(childLeft, childTop, childRight, childTop + childHeight);
-                }
+                ChildBounds bounds = mOrientationHandler.getChildBounds(child, childStart,
+                    pageCenter, layoutChildren);
+                final int primaryDimension = bounds.primaryDimension;
+                final int childPrimaryEnd = bounds.childPrimaryEnd;
 
                 // In case the pages are of different width, align the page to left or right edge
                 // based on the orientation.
                 final int pageScroll = mIsRtl
-                        ? (childLeft - scrollOffsetLeft)
-                        : Math.max(0, childRight  - scrollOffsetRight);
+                    ? (childStart - scrollOffsetStart)
+                    : Math.max(0, childPrimaryEnd  - scrollOffsetEnd);
                 if (outPageScrolls[i] != pageScroll) {
                     pageScrollChanged = true;
                     outPageScrolls[i] = pageScroll;
                 }
-
-                childLeft += childWidth + mPageSpacing + getChildGap();
+                childStart += primaryDimension + mPageSpacing + getChildGap();
             }
         }
         return pageScrollChanged;
@@ -671,15 +717,15 @@
     }
 
     protected void updateMinAndMaxScrollX() {
-        mMinScrollX = computeMinScrollX();
-        mMaxScrollX = computeMaxScrollX();
+        mMinScroll = computeMinScroll();
+        mMaxScroll = computeMaxScroll();
     }
 
-    protected int computeMinScrollX() {
+    protected int computeMinScroll() {
         return 0;
     }
 
-    protected int computeMaxScrollX() {
+    protected int computeMaxScroll() {
         int childCount = getChildCount();
         if (childCount > 0) {
             final int index = mIsRtl ? 0 : childCount - 1;
@@ -722,7 +768,8 @@
 
     protected int getChildOffset(int index) {
         if (index < 0 || index > getChildCount() - 1) return 0;
-        return getPageAt(index).getLeft();
+        View pageAtIndex = getPageAt(index);
+        return mOrientationHandler.getChildStart(pageAtIndex);
     }
 
     @Override
@@ -873,13 +920,13 @@
             case MotionEvent.ACTION_MOVE: {
                 /*
                  * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
-                 * whether the user has moved far enough from his original down touch.
+                 * whether the user has moved far enough from their original down touch.
                  */
                 if (mActivePointerId != INVALID_POINTER) {
                     determineScrollingStart(ev);
                 }
                 // if mActivePointerId is INVALID_POINTER, then we must have missed an ACTION_DOWN
-                // event. in that case, treat the first occurence of a move event as a ACTION_DOWN
+                // event. in that case, treat the first occurrence of a move event as a ACTION_DOWN
                 // i.e. fall through to the next case (don't break)
                 // (We sometimes miss ACTION_DOWN events in Workspace because it ignores all events
                 // while it's small- this was causing a crash before we checked for INVALID_POINTER)
@@ -892,9 +939,9 @@
                 // Remember location of down touch
                 mDownMotionX = x;
                 mDownMotionY = y;
-                mLastMotionX = x;
-                mLastMotionXRemainder = 0;
-                mTotalMotionX = 0;
+                mLastMotion = mOrientationHandler.getPrimaryDirection(ev, 0);
+                mLastMotionRemainder = 0;
+                mTotalMotion = 0;
                 mActivePointerId = ev.getPointerId(0);
 
                 updateIsBeingDraggedOnTouchDown();
@@ -956,17 +1003,17 @@
         final int pointerIndex = ev.findPointerIndex(mActivePointerId);
         if (pointerIndex == -1) return;
 
-        final float x = ev.getX(pointerIndex);
-        final int xDiff = (int) Math.abs(x - mLastMotionX);
+        final float primaryDirection = mOrientationHandler.getPrimaryDirection(ev, pointerIndex);
+        final int diff = (int) Math.abs(primaryDirection - mLastMotion);
         final int touchSlop = Math.round(touchSlopScale * mTouchSlop);
-        boolean xMoved = xDiff > touchSlop;
+        boolean moved = diff > touchSlop;
 
-        if (xMoved) {
+        if (moved) {
             // Scroll if the user moved far enough along the X axis
             mIsBeingDragged = true;
-            mTotalMotionX += Math.abs(mLastMotionX - x);
-            mLastMotionX = x;
-            mLastMotionXRemainder = 0;
+            mTotalMotion += Math.abs(mLastMotion - primaryDirection);
+            mLastMotion = primaryDirection;
+            mLastMotionRemainder = 0;
             onScrollInteractionBegin();
             pageBeginTransition();
             // Stop listening for things like pinches.
@@ -1033,10 +1080,9 @@
 
     @Override
     protected void dispatchDraw(Canvas canvas) {
-        if (mScroller.isSpringing() && mSpringOverScrollX != 0) {
+        if (mScroller.isSpringing() && mSpringOverScroll != 0) {
             int saveCount = canvas.save();
-
-            canvas.translate(-mSpringOverScrollX, 0);
+            mOrientationHandler.set(canvas, CANVAS_TRANSLATE, -mSpringOverScroll);
             super.dispatchDraw(canvas);
 
             canvas.restoreToCount(saveCount);
@@ -1046,25 +1092,27 @@
     }
 
     protected void dampedOverScroll(int amount) {
-        mSpringOverScrollX = amount;
+        mSpringOverScroll = amount;
         if (amount == 0) {
             return;
         }
 
-        int overScrollAmount = OverScroll.dampedScroll(amount, getMeasuredWidth());
-        mSpringOverScrollX = overScrollAmount;
+        int size = mOrientationHandler.getMeasuredSize(this);
+        int overScrollAmount = OverScroll.dampedScroll(amount, size);
+        mSpringOverScroll = overScrollAmount;
         if (mScroller.isSpringing()) {
             invalidate();
             return;
         }
 
-        int x = Utilities.boundToRange(getScrollX(), mMinScrollX, mMaxScrollX);
-        super.scrollTo(x + overScrollAmount, getScrollY());
+        int primaryScroll = mOrientationHandler.getPrimaryScroll(this);
+        int boundedScroll = Utilities.boundToRange(primaryScroll, mMinScroll, mMaxScroll);
+        mOrientationHandler.delegateScrollTo(this, boundedScroll + overScrollAmount);
         invalidate();
     }
 
     protected void overScroll(int amount) {
-        mSpringOverScrollX = amount;
+        mSpringOverScroll = amount;
         if (mScroller.isSpringing()) {
             invalidate();
             return;
@@ -1073,11 +1121,8 @@
         if (amount == 0) return;
 
         if (mFreeScroll && !mScroller.isFinished()) {
-            if (amount < 0) {
-                super.scrollTo(mMinScrollX + amount, getScrollY());
-            } else {
-                super.scrollTo(mMaxScrollX + amount, getScrollY());
-            }
+            int scrollAmount = amount < 0 ? mMinScroll + amount : mMaxScroll + amount;
+            mOrientationHandler.delegateScrollTo(this, scrollAmount);
         } else {
             dampedOverScroll(amount);
         }
@@ -1127,37 +1172,37 @@
             }
 
             // Remember where the motion event started
-            mDownMotionX = mLastMotionX = ev.getX();
+            mDownMotionX = ev.getX();
             mDownMotionY = ev.getY();
-            mLastMotionXRemainder = 0;
-            mTotalMotionX = 0;
+            mDownMotionPrimary = mLastMotion = mOrientationHandler.getPrimaryDirection(ev, 0);
+            mLastMotionRemainder = 0;
+            mTotalMotion = 0;
             mActivePointerId = ev.getPointerId(0);
-
             if (mIsBeingDragged) {
                 onScrollInteractionBegin();
                 pageBeginTransition();
             }
             break;
 
-        case MotionEvent.ACTION_MOVE:
-            if (mIsBeingDragged) {
+            case MotionEvent.ACTION_MOVE:
+                if (mIsBeingDragged) {
                 // Scroll to follow the motion event
                 final int pointerIndex = ev.findPointerIndex(mActivePointerId);
 
                 if (pointerIndex == -1) return true;
 
-                final float x = ev.getX(pointerIndex);
-                final float deltaX = mLastMotionX + mLastMotionXRemainder - x;
-
-                mTotalMotionX += Math.abs(deltaX);
+                float direction = mOrientationHandler.getPrimaryDirection(ev, pointerIndex);
+                float delta = mLastMotion + mLastMotionRemainder - direction;
+                mTotalMotion += Math.abs(delta);
 
                 // Only scroll and update mLastMotionX if we have moved some discrete amount.  We
                 // keep the remainder because we are actually testing if we've moved from the last
                 // scrolled position (which is discrete).
-                if (Math.abs(deltaX) >= 1.0f) {
-                    scrollBy((int) deltaX, 0);
-                    mLastMotionX = x;
-                    mLastMotionXRemainder = deltaX - (int) deltaX;
+                if (Math.abs(delta) >= 1.0f) {
+                    mLastMotion = direction;
+                    mLastMotionRemainder = delta - (int) delta;
+
+                    mOrientationHandler.set(this, VIEW_SCROLL_BY, (int) delta);
                 } else {
                     awakenScrollBars();
                 }
@@ -1170,27 +1215,31 @@
             if (mIsBeingDragged) {
                 final int activePointerId = mActivePointerId;
                 final int pointerIndex = ev.findPointerIndex(activePointerId);
-                final float x = ev.getX(pointerIndex);
+                final float primaryDirection = mOrientationHandler.getPrimaryDirection(ev,
+                    pointerIndex);
                 final VelocityTracker velocityTracker = mVelocityTracker;
                 velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
-                int velocityX = (int) velocityTracker.getXVelocity(mActivePointerId);
-                final int deltaX = (int) (x - mDownMotionX);
-                final int pageWidth = getPageAt(mCurrentPage).getMeasuredWidth();
-                boolean isSignificantMove = Math.abs(deltaX) > pageWidth *
-                        SIGNIFICANT_MOVE_THRESHOLD;
 
-                mTotalMotionX += Math.abs(mLastMotionX + mLastMotionXRemainder - x);
-                boolean isFling = mTotalMotionX > mTouchSlop && shouldFlingForVelocity(velocityX);
-                boolean isDeltaXLeft = mIsRtl ? deltaX > 0 : deltaX < 0;
-                boolean isVelocityXLeft = mIsRtl ? velocityX > 0 : velocityX < 0;
+                int velocity = (int) mOrientationHandler.getPrimaryVelocity(velocityTracker,
+                    mActivePointerId);
+                int delta = (int) (primaryDirection - mDownMotionPrimary);
+                int pageOrientedSize = mOrientationHandler.getMeasuredSize(getPageAt(mCurrentPage));
+
+                boolean isSignificantMove = Math.abs(delta) > pageOrientedSize *
+                    SIGNIFICANT_MOVE_THRESHOLD;
+
+                mTotalMotion += Math.abs(mLastMotion + mLastMotionRemainder - primaryDirection);
+                boolean isFling = mTotalMotion > mTouchSlop && shouldFlingForVelocity(velocity);
+                boolean isDeltaLeft = mIsRtl ? delta > 0 : delta < 0;
+                boolean isVelocityLeft = mIsRtl ? velocity > 0 : velocity < 0;
 
                 if (!mFreeScroll) {
                     // In the case that the page is moved far to one direction and then is flung
                     // in the opposite direction, we use a threshold to determine whether we should
                     // just return to the starting page, or if we should skip one further.
                     boolean returnToOriginalPage = false;
-                    if (Math.abs(deltaX) > pageWidth * RETURN_TO_ORIGINAL_PAGE_THRESHOLD &&
-                            Math.signum(velocityX) != Math.signum(deltaX) && isFling) {
+                    if (Math.abs(delta) > pageOrientedSize * RETURN_TO_ORIGINAL_PAGE_THRESHOLD &&
+                            Math.signum(velocity) != Math.signum(delta) && isFling) {
                         returnToOriginalPage = true;
                     }
 
@@ -1199,15 +1248,15 @@
                     // test for a large move if a fling has been registered. That is, a large
                     // move to the left and fling to the right will register as a fling to the right.
 
-                    if (((isSignificantMove && !isDeltaXLeft && !isFling) ||
-                            (isFling && !isVelocityXLeft)) && mCurrentPage > 0) {
+                    if (((isSignificantMove && !isDeltaLeft && !isFling) ||
+                            (isFling && !isVelocityLeft)) && mCurrentPage > 0) {
                         finalPage = returnToOriginalPage ? mCurrentPage : mCurrentPage - 1;
-                        snapToPageWithVelocity(finalPage, velocityX);
-                    } else if (((isSignificantMove && isDeltaXLeft && !isFling) ||
-                            (isFling && isVelocityXLeft)) &&
+                        snapToPageWithVelocity(finalPage, velocity);
+                    } else if (((isSignificantMove && isDeltaLeft && !isFling) ||
+                            (isFling && isVelocityLeft)) &&
                             mCurrentPage < getChildCount() - 1) {
                         finalPage = returnToOriginalPage ? mCurrentPage : mCurrentPage + 1;
-                        snapToPageWithVelocity(finalPage, velocityX);
+                        snapToPageWithVelocity(finalPage, velocity);
                     } else {
                         snapToDestination();
                     }
@@ -1216,38 +1265,40 @@
                         abortScrollerAnimation(true);
                     }
 
-                    int initialScrollX = getScrollX();
+                    int initialScroll = mOrientationHandler.getPrimaryScroll(this);
+                    int maxScroll = mMaxScroll;
+                    int minScroll = mMinScroll;
 
-                    if (((initialScrollX >= mMaxScrollX) && (isVelocityXLeft || !isFling)) ||
-                            ((initialScrollX <= mMinScrollX) && (!isVelocityXLeft || !isFling))) {
-                        mScroller.springBack(getScrollX(), mMinScrollX, mMaxScrollX);
+                    if (((initialScroll >= maxScroll) && (isVelocityLeft || !isFling)) ||
+                        ((initialScroll <= minScroll) && (!isVelocityLeft || !isFling))) {
+                        mScroller.springBack(initialScroll, minScroll, maxScroll);
                         mNextPage = getPageNearestToCenterOfScreen();
                     } else {
                         mScroller.setInterpolator(mDefaultInterpolator);
-                        mScroller.fling(initialScrollX, -velocityX,
-                                mMinScrollX, mMaxScrollX,
-                                Math.round(getWidth() * 0.5f * OVERSCROLL_DAMP_FACTOR));
+                        mScroller.fling(initialScroll, -velocity,
+                            minScroll, maxScroll,
+                            Math.round(getWidth() * 0.5f * OVERSCROLL_DAMP_FACTOR));
 
-                        int finalX = mScroller.getFinalPos();
-                        mNextPage = getPageNearestToCenterOfScreen(finalX);
+                        int finalPos = mScroller.getFinalPos();
+                        mNextPage = getPageNearestToCenterOfScreen(finalPos);
 
                         int firstPageScroll = getScrollForPage(!mIsRtl ? 0 : getPageCount() - 1);
                         int lastPageScroll = getScrollForPage(!mIsRtl ? getPageCount() - 1 : 0);
-                        if (finalX > mMinScrollX && finalX < mMaxScrollX) {
+                        if (finalPos > minScroll && finalPos < maxScroll) {
                             // If scrolling ends in the half of the added space that is closer to
                             // the end, settle to the end. Otherwise snap to the nearest page.
                             // If flinging past one of the ends, don't change the velocity as it
                             // will get stopped at the end anyway.
-                            int pageSnappedX = finalX < (firstPageScroll + mMinScrollX) / 2
-                                    ? mMinScrollX
-                                    : finalX > (lastPageScroll + mMaxScrollX) / 2
-                                            ? mMaxScrollX
-                                            : getScrollForPage(mNextPage);
+                            int pageSnapped = finalPos < (firstPageScroll + minScroll) / 2
+                                ? minScroll
+                                : finalPos > (lastPageScroll + maxScroll) / 2
+                                    ? maxScroll
+                                    : getScrollForPage(mNextPage);
 
-                            mScroller.setFinalPos(pageSnappedX);
+                            mScroller.setFinalPos(pageSnapped);
                             // Ensure the scroll/snap doesn't happen too fast;
                             int extraScrollDuration = OVERSCROLL_PAGE_SNAP_ANIMATION_DURATION
-                                    - mScroller.getDuration();
+                                - mScroller.getDuration();
                             if (extraScrollDuration > 0) {
                                 mScroller.extendDuration(extraScrollDuration);
                             }
@@ -1279,8 +1330,8 @@
         return true;
     }
 
-    protected boolean shouldFlingForVelocity(int velocityX) {
-        return Math.abs(velocityX) > mFlingThresholdVelocity;
+    protected boolean shouldFlingForVelocity(int velocity) {
+        return Math.abs(velocity) > mFlingThresholdVelocity;
     }
 
     private void resetTouchState() {
@@ -1364,8 +1415,9 @@
             // active pointer and adjust accordingly.
             // TODO: Make this decision more intelligent.
             final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
-            mLastMotionX = mDownMotionX = ev.getX(newPointerIndex);
-            mLastMotionXRemainder = 0;
+            mLastMotion = mDownMotionPrimary = mOrientationHandler.getPrimaryDirection(ev,
+                newPointerIndex);
+            mLastMotionRemainder = 0;
             mActivePointerId = ev.getPointerId(newPointerIndex);
             if (mVelocityTracker != null) {
                 mVelocityTracker.clear();
@@ -1383,19 +1435,20 @@
     }
 
     public int getPageNearestToCenterOfScreen() {
-        return getPageNearestToCenterOfScreen(getScrollX());
+        return getPageNearestToCenterOfScreen(mOrientationHandler.getPrimaryScroll(this));
     }
 
-    private int getPageNearestToCenterOfScreen(int scaledScrollX) {
-        int screenCenter = scaledScrollX + (getMeasuredWidth() / 2);
+    private int getPageNearestToCenterOfScreen(int scaledScroll) {
+        int pageOrientationSize = mOrientationHandler.getMeasuredSize(this);
+        int screenCenter = scaledScroll + (pageOrientationSize / 2);
         int minDistanceFromScreenCenter = Integer.MAX_VALUE;
         int minDistanceFromScreenCenterIndex = -1;
         final int childCount = getChildCount();
         for (int i = 0; i < childCount; ++i) {
             View layout = getPageAt(i);
-            int childWidth = layout.getMeasuredWidth();
-            int halfChildWidth = (childWidth / 2);
-            int childCenter = getChildOffset(i) + halfChildWidth;
+            int childSize = mOrientationHandler.getMeasuredSize(layout);
+            int halfChildSize = (childSize / 2);
+            int childCenter = getChildOffset(i) + halfChildSize;
             int distanceFromScreenCenter = Math.abs(childCenter - screenCenter);
             if (distanceFromScreenCenter < minDistanceFromScreenCenter) {
                 minDistanceFromScreenCenter = distanceFromScreenCenter;
@@ -1410,7 +1463,8 @@
     }
 
     protected boolean isInOverScroll() {
-        return (getScrollX() > mMaxScrollX || getScrollX() < mMinScrollX);
+        int scroll = mOrientationHandler.getPrimaryScroll(this);
+        return scroll > mMaxScroll || scroll < mMinScroll;
     }
 
     protected int getPageSnapDuration() {
@@ -1432,10 +1486,10 @@
 
     protected boolean snapToPageWithVelocity(int whichPage, int velocity) {
         whichPage = validateNewPage(whichPage);
-        int halfScreenSize = getMeasuredWidth() / 2;
+        int halfScreenSize = mOrientationHandler.getMeasuredSize(this) / 2;
 
-        final int newX = getScrollForPage(whichPage);
-        int delta = newX - getUnboundedScrollX();
+        final int newLoc = getScrollForPage(whichPage);
+        int delta = newLoc - getUnboundedScroll();
         int duration = 0;
 
         if (Math.abs(velocity) < mMinFlingVelocity) {
@@ -1462,7 +1516,7 @@
 
         if (QUICKSTEP_SPRINGS.get()) {
             return snapToPage(whichPage, delta, duration, false, null,
-                    velocity * Math.signum(newX - getUnboundedScrollX()), true);
+                    velocity * Math.signum(delta), true);
         } else {
             return snapToPage(whichPage, delta, duration);
         }
@@ -1488,8 +1542,8 @@
             TimeInterpolator interpolator) {
         whichPage = validateNewPage(whichPage);
 
-        int newX = getScrollForPage(whichPage);
-        final int delta = newX - getUnboundedScrollX();
+        int newLoc = getScrollForPage(whichPage);
+        final int delta = newLoc - getUnboundedScroll();
         return snapToPage(whichPage, delta, duration, immediate, interpolator, 0, false);
     }
 
@@ -1535,9 +1589,9 @@
         }
 
         if (spring && QUICKSTEP_SPRINGS.get()) {
-            mScroller.startScrollSpring(getUnboundedScrollX(), delta, duration, velocity);
+            mScroller.startScrollSpring(getUnboundedScroll(), delta, duration, velocity);
         } else {
-            mScroller.startScroll(getUnboundedScrollX(), delta, duration);
+            mScroller.startScroll(getUnboundedScroll(), delta, duration);
         }
 
         updatePageIndicator();
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index e0e4cc0..9780630 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -17,6 +17,7 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.ItemInfoWithIcon.FLAG_ICON_BADGED;
+import static com.android.launcher3.states.RotationHelper.FIXED_ROTATION_TRANSFORM_SETTING_NAME;
 
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
@@ -127,6 +128,11 @@
                         Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0;
     }
 
+    public static boolean isForcedRotation(Context context) {
+        return Settings.Global.getInt(context.getContentResolver(),
+            FIXED_ROTATION_TRANSFORM_SETTING_NAME, 0) != 0;
+    }
+
     // An intent extra to indicate the horizontal scroll of the wallpaper.
     public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET";
     public static final String EXTRA_WALLPAPER_FLAVOR = "com.android.launcher3.WALLPAPER_FLAVOR";
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index a8f492f..590c620 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -966,8 +966,8 @@
 
     private boolean isScrollingOverlay() {
         return mLauncherOverlay != null &&
-                ((mIsRtl && getUnboundedScrollX() > mMaxScrollX)
-                        || (!mIsRtl && getUnboundedScrollX() < mMinScrollX));
+                ((mIsRtl && getUnboundedScroll() > mMaxScroll)
+                        || (!mIsRtl && getUnboundedScroll() < mMinScroll));
     }
 
     @Override
@@ -1003,7 +1003,7 @@
 
     public void showPageIndicatorAtCurrentScroll() {
         if (mPageIndicator != null) {
-            mPageIndicator.setScroll(getScrollX(), computeMaxScrollX());
+            mPageIndicator.setScroll(getScrollX(), computeMaxScroll());
         }
     }
 
diff --git a/src/com/android/launcher3/allapps/AllAppsPagedView.java b/src/com/android/launcher3/allapps/AllAppsPagedView.java
index 5b73940..ab4cb6b 100644
--- a/src/com/android/launcher3/allapps/AllAppsPagedView.java
+++ b/src/com/android/launcher3/allapps/AllAppsPagedView.java
@@ -48,7 +48,7 @@
     @Override
     protected void onScrollChanged(int l, int t, int oldl, int oldt) {
         super.onScrollChanged(l, t, oldl, oldt);
-        mPageIndicator.setScroll(l, mMaxScrollX);
+        mPageIndicator.setScroll(l, mMaxScroll);
     }
 
     @Override
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index 3b5fd59..c6d62f8 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -258,7 +258,7 @@
     @Override
     protected void onScrollChanged(int l, int t, int oldl, int oldt) {
         super.onScrollChanged(l, t, oldl, oldt);
-        mPageIndicator.setScroll(l, mMaxScrollX);
+        mPageIndicator.setScroll(l, mMaxScroll);
     }
 
     /**
diff --git a/src/com/android/launcher3/model/PagedViewOrientedState.java b/src/com/android/launcher3/model/PagedViewOrientedState.java
new file mode 100644
index 0000000..fd1154c
--- /dev/null
+++ b/src/com/android/launcher3/model/PagedViewOrientedState.java
@@ -0,0 +1,100 @@
+/*
+ *
+ *  * 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.launcher3.model;
+
+import android.view.Surface;
+
+import com.android.launcher3.states.RotationHelper;
+import com.android.launcher3.touch.PortraitPagedViewHandler;
+import com.android.launcher3.touch.LandscapePagedViewHandler;
+import com.android.launcher3.touch.PagedOrientationHandler;
+import com.android.launcher3.touch.SeascapePagedViewHandler;
+
+/**
+ * Container to hold orientation/rotation related information for Launcher.
+ * This is not meant to be an abstraction layer for applying different functionality between
+ * the different orientation/rotations. For that see {@link PagedOrientationHandler}
+ *
+ * This class has initial default state assuming the device and foreground app have
+ * no ({@link Surface.ROTATION_0} rotation.
+ *
+ * Currently this class resides in {@link com.android.launcher3.PagedView}, but there's a ticket
+ * to disassociate it from Launcher since it's needed before Launcher is instantiated
+ * See TODO(b/150300347)
+ */
+public final class PagedViewOrientedState {
+
+    private PagedOrientationHandler mOrientationHandler = new PortraitPagedViewHandler();
+
+    private int mTouchRotation = Surface.ROTATION_0;
+    private int mDisplayRotation = Surface.ROTATION_0;
+    /**
+     * If {@code true} we default to {@link PortraitPagedViewHandler} and don't support any fake
+     * launcher orientations.
+     */
+    private boolean mDisableMultipleOrientations;
+
+    public void update(int touchRotation, int displayRotation) {
+        mDisplayRotation = displayRotation;
+        mTouchRotation = touchRotation;
+        if (mTouchRotation == Surface.ROTATION_90) {
+            mOrientationHandler = new LandscapePagedViewHandler();
+        } else if (mTouchRotation == Surface.ROTATION_270) {
+            mOrientationHandler = new SeascapePagedViewHandler();
+        } else {
+            mOrientationHandler = new PortraitPagedViewHandler();
+        }
+    }
+
+    /**
+     * @return {@code true} if the area where the user touched the nav bar is the expected
+     * location for the given display rotation. Ex. bottom of phone in portrait, or left side of
+     * phone in landscape, right side in seascape, etc.
+     * False otherwise
+     */
+    public boolean isTouchRegionNaturalForDisplay() {
+        return mTouchRotation == mDisplayRotation;
+    }
+
+    public boolean areMultipleLayoutOrientationsDisabled() {
+        return mDisableMultipleOrientations;
+    }
+
+    public void disableMultipleOrientations(boolean disable) {
+        mDisableMultipleOrientations = disable;
+        if (disable) {
+            mOrientationHandler = new PortraitPagedViewHandler();
+        }
+    }
+
+    /**
+     * Gets the difference between the rotation of the device/display and which region the
+     * user is currently interacting with in factors of 90 degree clockwise rotations.
+     * Ex. Display is in portrait -> 0, user touches landscape region -> 1, this
+     * method would return 3 because it takes 3 clockwise 90 degree rotations from normal to
+     * landscape (portrait -> seascape -> reverse portrait -> landscape)
+     */
+    public int getTouchDisplayDelta() {
+        return RotationHelper.deltaRotation(mTouchRotation, mDisplayRotation);
+    }
+
+    public PagedOrientationHandler getOrientationHandler() {
+        return mOrientationHandler;
+    }
+}
diff --git a/src/com/android/launcher3/notification/NotificationMainView.java b/src/com/android/launcher3/notification/NotificationMainView.java
index 812268a..b193ffd 100644
--- a/src/com/android/launcher3/notification/NotificationMainView.java
+++ b/src/com/android/launcher3/notification/NotificationMainView.java
@@ -176,7 +176,7 @@
 
     // SingleAxisSwipeDetector.Listener's
     @Override
-    public void onDragStart(boolean start) { }
+    public void onDragStart(boolean start, float startDisplacement) { }
 
 
     @Override
diff --git a/src/com/android/launcher3/states/RotationHelper.java b/src/com/android/launcher3/states/RotationHelper.java
index 852928b..95b13b4 100644
--- a/src/com/android/launcher3/states/RotationHelper.java
+++ b/src/com/android/launcher3/states/RotationHelper.java
@@ -17,15 +17,26 @@
 
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LOCKED;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
+import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
 import static android.util.DisplayMetrics.DENSITY_DEVICE_STABLE;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 
+import android.content.ContentResolver;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.content.res.Resources;
+import android.database.ContentObserver;
+import android.graphics.Matrix;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.provider.Settings;
+import android.view.MotionEvent;
+import android.view.Surface;
 import android.view.WindowManager;
 
 import com.android.launcher3.Launcher;
+import com.android.launcher3.PagedView;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.config.FeatureFlags;
@@ -38,6 +49,8 @@
 
     public static final String ALLOW_ROTATION_PREFERENCE_KEY = "pref_allowRotation";
 
+    public static final String FIXED_ROTATION_TRANSFORM_SETTING_NAME = "fixed_rotation_transform";
+
     public static boolean getAllowRotationDefaultValue() {
         // If the device was scaled, used the original dimensions to determine if rotation
         // is allowed of not.
@@ -92,6 +105,18 @@
         } else {
             mPrefs = null;
         }
+
+        // TODO(b/150260456) Add this in home settings as well
+        final ContentResolver resolver = launcher.getContentResolver();
+        final ContentObserver observer = new ContentObserver(MAIN_EXECUTOR.getHandler()) {
+            @Override
+            public void onChange(boolean selfChange) {
+                PagedView.sFlagForcedRotation = Utilities.isForcedRotation(mLauncher);
+            }
+        };
+        resolver.registerContentObserver(Settings.Global.getUriFor(
+            FIXED_ROTATION_TRANSFORM_SETTING_NAME),
+            false, observer);
     }
 
     public void setRotationHadDifferentUI(boolean rotationHasDifferentUI) {
@@ -204,6 +229,118 @@
         }
     }
 
+    public static int getDegreesFromRotation(int rotation) {
+        int degrees;
+        switch (rotation) {
+            case Surface.ROTATION_90:
+                degrees = 90;
+                break;
+            case Surface.ROTATION_180:
+                degrees = 180;
+                break;
+            case Surface.ROTATION_270:
+                degrees = 270;
+                break;
+            case Surface.ROTATION_0:
+            default:
+                degrees = 0;
+                break;
+        }
+        return degrees;
+    }
+
+    public static int getRotationFromDegrees(int degrees, int currentRotation) {
+        int threshold = 70;
+        if (degrees >= (360 - threshold) || degrees < (threshold)) {
+            return Surface.ROTATION_0;
+        } else if (degrees < (90 + threshold)) {
+            return Surface.ROTATION_270;
+        } else if (degrees < 180 + threshold) {
+            return Surface.ROTATION_180;
+        } else {
+            return Surface.ROTATION_90;
+        }
+    }
+
+    /**
+     * @return how many factors {@param newRotation} is rotated 90 degrees clockwise.
+     * E.g. 1->Rotated by 90 degrees clockwise, 2->Rotated 180 clockwise...
+     * A value of 0 means no rotation has been applied
+     */
+    public static int deltaRotation(int oldRotation, int newRotation) {
+        int delta = newRotation - oldRotation;
+        if (delta < 0) delta += 4;
+        return delta;
+    }
+
+    /**
+     * Creates a matrix to transform the given motion event specified by degrees.
+     * If {@param inverse} is {@code true}, the inverse of that matrix will be applied
+     */
+    public static void transformEvent(int degrees, MotionEvent ev, boolean inverse) {
+        Matrix transform = new Matrix();
+        transform.setRotate(degrees);
+        if (inverse) {
+            Matrix inv = new Matrix();
+            transform.invert(inv);
+            ev.transform(inv);
+        } else {
+            ev.transform(transform);
+        }
+        // TODO: Add scaling back in based on degrees
+//        if (getWidth() > 0 && getHeight() > 0) {
+//            float scale = ((float) getWidth()) / getHeight();
+//            transform.postScale(scale, 1 / scale);
+//        }
+    }
+
+    /**
+     * TODO(b/149658423): Have {@link com.android.quickstep.OrientationTouchTransformer
+     *   also use this}
+     */
+    public static Matrix getRotationMatrix(int screenWidth, int screenHeight, int displayRotation) {
+        Matrix m = new Matrix();
+        switch (displayRotation) {
+            case Surface.ROTATION_0:
+                return m;
+            case Surface.ROTATION_90:
+                m.setRotate(360 - RotationHelper.getDegreesFromRotation(displayRotation));
+                m.postTranslate(0, screenWidth);
+                break;
+            case Surface.ROTATION_270:
+                m.setRotate(360 - RotationHelper.getDegreesFromRotation(displayRotation));
+                m.postTranslate(screenHeight, 0);
+                break;
+        }
+        return m;
+    }
+
+    public static void mapRectFromNormalOrientation(RectF src, int screenWidth, int screenHeight,
+        int displayRotation) {
+        Matrix m = RotationHelper.getRotationMatrix(screenWidth, screenHeight, displayRotation);
+        m.mapRect(src);
+    }
+
+    public static void mapInverseRectFromNormalOrientation(RectF src, int screenWidth,
+        int screenHeight, int displayRotation) {
+        Matrix m = RotationHelper.getRotationMatrix(screenWidth, screenHeight, displayRotation);
+        Matrix inverse = new Matrix();
+        m.invert(inverse);
+        inverse.mapRect(src);
+    }
+
+    public static void getTargetRectForRotation(Rect srcOut, int screenWidth, int screenHeight,
+        int displayRotation) {
+        RectF wrapped = new RectF(srcOut);
+        Matrix m = RotationHelper.getRotationMatrix(screenWidth, screenHeight, displayRotation);
+        m.mapRect(wrapped);
+        wrapped.round(srcOut);
+    }
+
+    public static boolean isRotationLandscape(int rotation) {
+        return rotation == Surface.ROTATION_270 || rotation == Surface.ROTATION_90;
+    }
+
     @Override
     public String toString() {
         return String.format("[mStateHandlerRequest=%d, mCurrentStateRequest=%d,"
diff --git a/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java b/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
index 9df6241..34d69e9 100644
--- a/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
+++ b/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
@@ -230,7 +230,7 @@
     }
 
     @Override
-    public void onDragStart(boolean start) {
+    public void onDragStart(boolean start, float startDisplacement) {
         mStartState = mLauncher.getStateManager().getState();
         mIsLogContainerSet = false;
         if (mCurrentAnimation == null) {
diff --git a/src/com/android/launcher3/touch/BaseSwipeDetector.java b/src/com/android/launcher3/touch/BaseSwipeDetector.java
index 30283da..1276ece 100644
--- a/src/com/android/launcher3/touch/BaseSwipeDetector.java
+++ b/src/com/android/launcher3/touch/BaseSwipeDetector.java
@@ -236,7 +236,7 @@
         } else {
             mSubtractDisplacement.x = mDisplacement.x > 0 ? mTouchSlop : -mTouchSlop;
             mSubtractDisplacement.y = mDisplacement.y > 0 ? mTouchSlop : -mTouchSlop;
-        }
+        } 
     }
 
     protected abstract boolean shouldScrollStart(PointF displacement);
diff --git a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
new file mode 100644
index 0000000..3090d97
--- /dev/null
+++ b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2019 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.touch;
+
+import android.content.res.Resources;
+import android.graphics.Matrix;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.util.FloatProperty;
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherState.ScaleAndTranslation;
+import com.android.launcher3.PagedView;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.util.OverScroller;
+
+import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
+import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.HORIZONTAL;
+
+public class LandscapePagedViewHandler implements PagedOrientationHandler {
+    @Override
+    public float getCurrentAppAnimationScale(RectF src, RectF target) {
+        return src.height() / target.height();
+    }
+
+    @Override
+    public int getPrimaryValue(int x, int y) {
+        return y;
+    }
+
+    @Override
+    public int getSecondaryValue(int x, int y) {
+        return x;
+    }
+
+    @Override
+    public void delegateScrollTo(PagedView pagedView, int secondaryScroll, int minMaxScroll) {
+        pagedView.superScrollTo(secondaryScroll, minMaxScroll);
+    }
+
+    @Override
+    public void delegateScrollBy(PagedView pagedView, int unboundedScroll, int x, int y) {
+        pagedView.scrollTo(pagedView.getScrollX() + x, unboundedScroll + y);
+    }
+
+    @Override
+    public void scrollerStartScroll(OverScroller scroller, int newPosition) {
+        scroller.startScroll(scroller.getCurrPos(), newPosition - scroller.getCurrPos());
+    }
+
+    @Override
+    public CurveProperties getCurveProperties(PagedView pagedView, Rect mInsets) {
+        int scroll = pagedView.getScrollY();
+        final int halfPageSize = pagedView.getNormalChildHeight() / 2;
+        final int screenCenter = mInsets.top + pagedView.getPaddingTop() + scroll + halfPageSize;
+        final int halfScreenSize = pagedView.getMeasuredHeight() / 2;
+        return new CurveProperties(scroll, halfPageSize, screenCenter, halfScreenSize);
+    }
+
+    @Override
+    public float getDragLengthFactor(int dimension, int transitionDragLength) {
+        return Math.min(1.0f, (float) dimension / transitionDragLength);
+    }
+
+    @Override
+    public boolean isGoingUp(float displacement) {
+        return displacement > 0;
+    }
+
+    @Override
+    public void delegateScrollTo(PagedView pagedView, int primaryScroll) {
+        pagedView.superScrollTo(pagedView.getScrollX(), primaryScroll);
+    }
+
+    @Override
+    public <T> void set(T target, Int2DAction<T> action, int param) {
+        action.call(target, 0, param);
+    }
+
+    @Override
+    public <T> void set(T target, Float2DAction<T> action, float param) {
+        action.call(target, 0, param);
+    }
+
+    @Override
+    public float getPrimaryDirection(MotionEvent event, int pointerIndex) {
+        return event.getY(pointerIndex);
+    }
+
+    @Override
+    public float getPrimaryVelocity(VelocityTracker velocityTracker, int pointerId) {
+        return velocityTracker.getYVelocity(pointerId);
+    }
+
+    @Override
+    public int getMeasuredSize(View view) {
+        return view.getMeasuredHeight();
+    }
+
+    @Override
+    public int getPrimarySize(Rect rect) {
+        return rect.height();
+    }
+
+    @Override
+    public float getPrimarySize(RectF rect) {
+        return rect.height();
+    }
+
+    @Override
+    public int getSecondaryDimension(View view) {
+        return view.getWidth();
+    }
+
+    @Override
+    public ScaleAndTranslation getScaleAndTranslation(DeviceProfile dp, View view) {
+        float offscreenTranslationY = dp.heightPx - view.getPaddingTop();
+        return new ScaleAndTranslation(1f, 0f, offscreenTranslationY);
+    }
+
+    @Override
+    public float getTranslationValue(ScaleAndTranslation scaleAndTranslation) {
+        return scaleAndTranslation.translationY;
+    }
+
+    @Override
+    public FloatProperty<View> getPrimaryViewTranslate() {
+        return VIEW_TRANSLATE_Y;
+    }
+
+    @Override
+    public FloatProperty<View> getSecondaryViewTranslate() {
+        return VIEW_TRANSLATE_X;
+    }
+
+    @Override
+    public void setPrimaryAndResetSecondaryTranslate(View view, float translation) {
+        view.setTranslationX(0);
+        view.setTranslationY(translation);
+    }
+
+    @Override
+    public float getViewCenterPosition(View view) {
+        return view.getTop() + view.getTranslationY();
+    }
+
+    @Override
+    public int getPrimaryScroll(View view) {
+        return view.getScrollY();
+    }
+
+    @Override
+    public float getPrimaryScale(View view) {
+        return view.getScaleY();
+    }
+
+    @Override
+    public void setMaxScroll(AccessibilityEvent event, int maxScroll) {
+        event.setMaxScrollY(maxScroll);
+    }
+
+    @Override
+    public boolean getRecentsRtlSetting(Resources resources) {
+        return !Utilities.isRtl(resources);
+    }
+
+    @Override
+    public float getDegreesRotated() {
+        return 90;
+    }
+
+    @Override
+    public void offsetTaskRect(RectF rect, float value, int delta) {
+        if (delta == 0) {
+            rect.offset(value, 0);
+        } else if (delta == 1) {
+            rect.offset(0, -value);
+        } else if (delta == 2) {
+            rect.offset(-value, 0);
+        } else {
+            rect.offset(0, value);
+        }
+    }
+
+    @Override
+    public void mapRectFromNormalOrientation(Rect src, int screenWidth, int screenHeight) {
+        Matrix m = new Matrix();
+        m.setRotate(270);
+        m.postTranslate(0, screenWidth);
+        RectF newTarget = new RectF();
+        RectF oldTarget = new RectF(src);
+        m.mapRect(newTarget, oldTarget);
+        src.set((int)newTarget.left, (int)newTarget.top, (int)newTarget.right, (int)newTarget.bottom);
+    }
+
+    @Override
+    public int getChildStart(View view) {
+        return view.getTop();
+    }
+
+    @Override
+    public int getCenterForPage(View view, Rect insets) {
+        return (view.getPaddingLeft() + view.getMeasuredWidth() + insets.left
+            - insets.right - view.getPaddingRight()) / 2;
+    }
+
+    @Override
+    public int getScrollOffsetStart(View view, Rect insets) {
+        return insets.top + view.getPaddingTop();
+    }
+
+    @Override
+    public int getScrollOffsetEnd(View view, Rect insets) {
+        return view.getHeight() - view.getPaddingBottom() - insets.bottom;
+    }
+
+    @Override
+    public SingleAxisSwipeDetector.Direction getOppositeSwipeDirection() {
+        return HORIZONTAL;
+    }
+
+    @Override
+    public int getShortEdgeLength(DeviceProfile dp) {
+        return dp.heightPx;
+    }
+
+    @Override
+    public int getTaskDismissDirectionFactor() {
+        return 1;
+    }
+
+    @Override
+    public ChildBounds getChildBounds(View child, int childStart, int pageCenter,
+        boolean layoutChild) {
+        final int childHeight = child.getMeasuredHeight();
+        final int childBottom = childStart + childHeight;
+        final int childWidth = child.getMeasuredWidth();
+        final int childLeft = pageCenter - childWidth/ 2;
+        if (layoutChild) {
+            child.layout(childLeft, childStart, childLeft + childWidth, childBottom);
+        }
+        return new ChildBounds(childHeight, childWidth, childBottom, childLeft);
+    }
+}
diff --git a/src/com/android/launcher3/touch/PagedOrientationHandler.java b/src/com/android/launcher3/touch/PagedOrientationHandler.java
new file mode 100644
index 0000000..2f02076
--- /dev/null
+++ b/src/com/android/launcher3/touch/PagedOrientationHandler.java
@@ -0,0 +1,120 @@
+/*
+ * 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.launcher3.touch;
+
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.util.FloatProperty;
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.PagedView;
+import com.android.launcher3.util.OverScroller;
+
+/**
+ * Abstraction layer to separate horizontal and vertical specific implementations
+ * for {@link com.android.launcher3.PagedView}. Majority of these implementations are (should be) as
+ * simple as choosing the correct X and Y analogous methods.
+ */
+public interface PagedOrientationHandler {
+
+    interface Int2DAction<T> {
+        void call(T target, int x, int y);
+    }
+    interface Float2DAction<T> {
+        void call(T target, float x, float y);
+    }
+    Int2DAction<View> VIEW_SCROLL_BY = View::scrollBy;
+    Int2DAction<View> VIEW_SCROLL_TO = View::scrollTo;
+    Float2DAction<Canvas> CANVAS_TRANSLATE = Canvas::translate;
+    <T> void set(T target, Int2DAction<T> action, int param);
+    <T> void set(T target, Float2DAction<T> action, float param);
+    float getPrimaryDirection(MotionEvent event, int pointerIndex);
+    float getPrimaryVelocity(VelocityTracker velocityTracker, int pointerId);
+    int getMeasuredSize(View view);
+    int getPrimarySize(Rect rect);
+    float getPrimarySize(RectF rect);
+    int getSecondaryDimension(View view);
+    LauncherState.ScaleAndTranslation getScaleAndTranslation(DeviceProfile dp, View view);
+    float getTranslationValue(LauncherState.ScaleAndTranslation scaleAndTranslation);
+    FloatProperty<View> getPrimaryViewTranslate();
+    FloatProperty<View> getSecondaryViewTranslate();
+    void setPrimaryAndResetSecondaryTranslate(View view, float translation);
+    float getViewCenterPosition(View view);
+    int getPrimaryScroll(View view);
+    float getPrimaryScale(View view);
+    int getChildStart(View view);
+    int getCenterForPage(View view, Rect insets);
+    int getScrollOffsetStart(View view, Rect insets);
+    int getScrollOffsetEnd(View view, Rect insets);
+    SingleAxisSwipeDetector.Direction getOppositeSwipeDirection();
+    int getShortEdgeLength(DeviceProfile dp);
+    int getTaskDismissDirectionFactor();
+    ChildBounds getChildBounds(View child, int childStart, int pageCenter, boolean layoutChild);
+    void setMaxScroll(AccessibilityEvent event, int maxScroll);
+    boolean getRecentsRtlSetting(Resources resources);
+    float getDegreesRotated();
+    void offsetTaskRect(RectF rect, float value, int delta);
+    void mapRectFromNormalOrientation(Rect src, int screenWidth, int screenHeight);
+    float getCurrentAppAnimationScale(RectF src, RectF target);
+    int getPrimaryValue(int x, int y);
+    int getSecondaryValue(int x, int y);
+    void delegateScrollTo(PagedView pagedView, int secondaryScroll, int primaryScroll);
+    /** Uses {@params pagedView}.getScroll[X|Y]() method for the secondary amount*/
+    void delegateScrollTo(PagedView pagedView, int primaryScroll);
+    void delegateScrollBy(PagedView pagedView, int unboundedScroll, int x, int y);
+    void scrollerStartScroll(OverScroller scroller, int newPosition);
+    CurveProperties getCurveProperties(PagedView pagedView, Rect insets);
+    float getDragLengthFactor(int dimension, int transitionDragLength);
+    boolean isGoingUp(float displacement);
+
+    class CurveProperties {
+        public final int scroll;
+        public final int halfPageSize;
+        public final int screenCenter;
+        public final int halfScreenSize;
+
+        public CurveProperties(int scroll, int halfPageSize, int screenCenter, int halfScreenSize) {
+            this.scroll = scroll;
+            this.halfPageSize = halfPageSize;
+            this.screenCenter = screenCenter;
+            this.halfScreenSize = halfScreenSize;
+        }
+    }
+
+    class ChildBounds {
+
+        public final int primaryDimension;
+        public final int secondaryDimension;
+        public final int childPrimaryEnd;
+        public final int childSecondaryEnd;
+
+        ChildBounds(int primaryDimension, int secondaryDimension, int childPrimaryEnd,
+            int childSecondaryEnd) {
+            this.primaryDimension = primaryDimension;
+            this.secondaryDimension = secondaryDimension;
+            this.childPrimaryEnd = childPrimaryEnd;
+            this.childSecondaryEnd = childSecondaryEnd;
+        }
+    }
+}
diff --git a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
new file mode 100644
index 0000000..fbd80bb
--- /dev/null
+++ b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2019 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.touch;
+
+import android.content.res.Resources;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.util.FloatProperty;
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherState.ScaleAndTranslation;
+import com.android.launcher3.PagedView;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.util.OverScroller;
+
+import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
+import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
+import static com.android.launcher3.touch.SingleAxisSwipeDetector.VERTICAL;
+
+public class PortraitPagedViewHandler implements PagedOrientationHandler {
+
+    @Override
+    public float getCurrentAppAnimationScale(RectF src, RectF target) {
+        return src.width() / target.width();
+    }
+
+    @Override
+    public int getPrimaryValue(int x, int y) {
+        return x;
+    }
+
+    @Override
+    public int getSecondaryValue(int x, int y) {
+        return y;
+    }
+
+    @Override
+    public void delegateScrollTo(PagedView pagedView, int secondaryScroll, int primaryScroll) {
+        pagedView.superScrollTo(primaryScroll, secondaryScroll);
+    }
+
+    @Override
+    public void delegateScrollBy(PagedView pagedView, int unboundedScroll, int x, int y) {
+        pagedView.scrollTo(unboundedScroll + x, pagedView.getScrollY() + y);
+    }
+
+    @Override
+    public void scrollerStartScroll(OverScroller scroller, int newPosition) {
+        scroller.startScroll(newPosition - scroller.getCurrPos(), scroller.getCurrPos());
+    }
+
+    @Override
+    public CurveProperties getCurveProperties(PagedView pagedView, Rect mInsets) {
+        int scroll = pagedView.getScrollX();
+        final int halfPageSize = pagedView.getNormalChildWidth() / 2;
+        final int screenCenter = mInsets.left + pagedView.getPaddingLeft() + scroll + halfPageSize;
+        final int halfScreenSize = pagedView.getMeasuredWidth() / 2;
+        return new CurveProperties(scroll, halfPageSize, screenCenter, halfScreenSize);
+    }
+
+    @Override
+    public float getDragLengthFactor(int dimension, int transitionDragLength) {
+        return (float) dimension / transitionDragLength;
+    }
+
+    @Override
+    public boolean isGoingUp(float displacement) {
+        return displacement < 0;
+    }
+
+    @Override
+    public void delegateScrollTo(PagedView pagedView, int primaryScroll) {
+        pagedView.superScrollTo(primaryScroll, pagedView.getScrollY());
+    }
+
+    @Override
+    public <T> void set(T target, Int2DAction<T> action, int param) {
+        action.call(target, param, 0);
+    }
+
+    @Override
+    public <T> void set(T target, Float2DAction<T> action, float param) {
+        action.call(target, param, 0);
+    }
+
+    @Override
+    public float getPrimaryDirection(MotionEvent event, int pointerIndex) {
+        return event.getX(pointerIndex);
+    }
+
+    @Override
+    public float getPrimaryVelocity(VelocityTracker velocityTracker, int pointerId) {
+        return velocityTracker.getXVelocity(pointerId);
+    }
+
+    @Override
+    public int getMeasuredSize(View view) {
+        return view.getMeasuredWidth();
+    }
+
+    @Override
+    public int getPrimarySize(Rect rect) {
+        return rect.width();
+    }
+
+    @Override
+    public float getPrimarySize(RectF rect) {
+        return rect.width();
+    }
+
+    @Override
+    public int getSecondaryDimension(View view) {
+        return view.getHeight();
+    }
+
+    @Override
+    public ScaleAndTranslation getScaleAndTranslation(DeviceProfile dp, View view) {
+        float offscreenTranslationX = dp.widthPx - view.getPaddingStart();
+        return new ScaleAndTranslation(1f, offscreenTranslationX, 0f);
+    }
+
+    @Override
+    public float getTranslationValue(ScaleAndTranslation scaleAndTranslation) {
+        return scaleAndTranslation.translationX;
+    }
+
+    @Override
+    public FloatProperty<View> getPrimaryViewTranslate() {
+        return VIEW_TRANSLATE_X;
+    }
+
+    @Override
+    public FloatProperty<View> getSecondaryViewTranslate() {
+        return VIEW_TRANSLATE_Y;
+    }
+
+    @Override
+    public void setPrimaryAndResetSecondaryTranslate(View view, float translation) {
+        view.setTranslationX(translation);
+        view.setTranslationY(0);
+    }
+
+    @Override
+    public float getViewCenterPosition(View view) {
+        return view.getLeft() + view.getTranslationX();
+    }
+
+    @Override
+    public int getPrimaryScroll(View view) {
+        return view.getScrollX();
+    }
+
+    @Override
+    public float getPrimaryScale(View view) {
+        return view.getScaleX();
+    }
+
+    @Override
+    public void setMaxScroll(AccessibilityEvent event, int maxScroll) {
+        event.setMaxScrollX(maxScroll);
+    }
+
+    @Override
+    public boolean getRecentsRtlSetting(Resources resources) {
+        return !Utilities.isRtl(resources);
+    }
+
+    @Override
+    public float getDegreesRotated() {
+        return 0;
+    }
+
+    @Override
+    public void offsetTaskRect(RectF rect, float value, int delta) {
+        if (delta == 0) {
+            rect.offset(value, 0);
+        } else if (delta == 1) {
+            rect.offset(0, -value);
+        } else if (delta == 2) {
+            rect.offset(-value, 0);
+        } else {
+            rect.offset(0, value);
+        }
+    }
+
+    @Override
+    public void mapRectFromNormalOrientation(Rect src, int screenWidth, int screenHeight) {
+        //no-op
+    }
+
+    @Override
+    public int getChildStart(View view) {
+        return view.getLeft();
+    }
+
+    @Override
+    public int getCenterForPage(View view, Rect insets) {
+        return (view.getPaddingTop() + view.getMeasuredHeight() + insets.top
+            - insets.bottom - view.getPaddingBottom()) / 2;
+    }
+
+    @Override
+    public int getScrollOffsetStart(View view, Rect insets) {
+        return insets.left + view.getPaddingLeft();
+    }
+
+    @Override
+    public int getScrollOffsetEnd(View view, Rect insets) {
+        return view.getWidth() - view.getPaddingRight() - insets.right;
+    }
+
+    @Override
+    public SingleAxisSwipeDetector.Direction getOppositeSwipeDirection() {
+        return VERTICAL;
+    }
+
+    @Override
+    public int getShortEdgeLength(DeviceProfile dp) {
+        return dp.widthPx;
+    }
+
+    @Override
+    public int getTaskDismissDirectionFactor() {
+        return -1;
+    }
+
+    @Override
+    public ChildBounds getChildBounds(View child, int childStart, int pageCenter,
+        boolean layoutChild) {
+        final int childWidth = child.getMeasuredWidth();
+        final int childRight = childStart + childWidth;
+        final int childHeight = child.getMeasuredHeight();
+        final int childTop = pageCenter - childHeight / 2;
+        if (layoutChild) {
+            child.layout(childStart, childTop, childRight, childTop + childHeight);
+        }
+        return new ChildBounds(childWidth, childHeight, childRight, childTop);
+    }
+}
diff --git a/src/com/android/launcher3/touch/SeascapePagedViewHandler.java b/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
new file mode 100644
index 0000000..f1875cc
--- /dev/null
+++ b/src/com/android/launcher3/touch/SeascapePagedViewHandler.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2019 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.touch;
+
+import android.content.res.Resources;
+import android.graphics.Matrix;
+import android.graphics.Rect;
+import android.graphics.RectF;
+
+import com.android.launcher3.Utilities;
+
+public class SeascapePagedViewHandler extends LandscapePagedViewHandler {
+
+    @Override
+    public int getTaskDismissDirectionFactor() {
+        return -1;
+    }
+
+    @Override
+    public boolean getRecentsRtlSetting(Resources resources) {
+        return Utilities.isRtl(resources);
+    }
+
+    @Override
+    public void offsetTaskRect(RectF rect, float value, int delta) {
+        if (delta == 0) {
+            rect.offset(-value, 0);
+        } else if (delta == 1) {
+            rect.offset(0, value);
+        } else if (delta == 2) {
+            rect.offset(-value, 0);
+        } else {
+            rect.offset(0, -value);
+        }
+    }
+
+    @Override
+    public void mapRectFromNormalOrientation(Rect src, int screenWidth, int screenHeight) {
+        Matrix m = new Matrix();
+        m.setRotate(90);
+        m.postTranslate(screenHeight, 0);
+        RectF newTarget = new RectF();
+        RectF oldTarget = new RectF(src);
+        m.mapRect(newTarget, oldTarget);
+        src.set((int)newTarget.left, (int)newTarget.top, (int)newTarget.right, (int)newTarget.bottom);
+    }
+
+    @Override
+    public float getDegreesRotated() {
+        return 270;
+    }
+
+    @Override
+    public boolean isGoingUp(float displacement) {
+        return displacement < 0;
+    }
+}
diff --git a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
index 9d406f3..d725486 100644
--- a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
+++ b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
@@ -148,7 +148,8 @@
 
     @Override
     protected void reportDragStartInternal(boolean recatch) {
-        mListener.onDragStart(!recatch);
+        float startDisplacement = mDir.extractDirection(mSubtractDisplacement);
+        mListener.onDragStart(!recatch, startDisplacement);
     }
 
     @Override
@@ -165,8 +166,13 @@
 
     /** Listener to receive updates on the swipe. */
     public interface Listener {
-        /** @param start whether this was the original drag start, as opposed to a recatch. */
-        void onDragStart(boolean start);
+        /**
+         * TODO(b/150256055) consolidate all the different onDrag() methods into one
+         * @param start whether this was the original drag start, as opposed to a recatch.
+         * @param startDisplacement the initial touch displacement for the primary direction as
+         *        given by by {@link Direction#extractDirection(PointF)}
+         */
+        void onDragStart(boolean start, float startDisplacement);
 
         boolean onDrag(float displacement);
 
diff --git a/src/com/android/launcher3/views/AbstractSlideInView.java b/src/com/android/launcher3/views/AbstractSlideInView.java
index bdba39c..11c1029 100644
--- a/src/com/android/launcher3/views/AbstractSlideInView.java
+++ b/src/com/android/launcher3/views/AbstractSlideInView.java
@@ -149,8 +149,7 @@
     /* SingleAxisSwipeDetector.Listener */
 
     @Override
-    public void onDragStart(boolean start) {
-    }
+    public void onDragStart(boolean start, float startDisplacement) { }
 
     @Override
     public boolean onDrag(float displacement) {