Launcher shortcuts animations update.

> The shortcut container closes with an animation
> When opening/closing the animation only the icon scales
and not the title and drag handle
> When dragging the icon, it starts from the original icon position and
moves under the user finger. The container grows to follow the drag view.

Bug: 28980830
Change-Id: Ic0353c30b682d1f018cbf4d62e8a6e8e7d7d4664

4 files changed, 383 insertions, 86 deletions

diff --git a/src/com/android/launcher3/shortcuts/DeepShortcutTextView.java b/src/com/android/launcher3/shortcuts/DeepShortcutTextView.java
index c48d16008..450d36da5 100644
--- a/src/com/android/launcher3/shortcuts/DeepShortcutTextView.java
+++ b/src/com/android/launcher3/shortcuts/DeepShortcutTextView.java
@@ -21,7 +21,6 @@ import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 
 import com.android.launcher3.BubbleTextView;
-import com.android.launcher3.R;
 
 /**
  * A {@link BubbleTextView} that has the shortcut icon on the left and drag handle on the right.
@@ -41,10 +40,7 @@ public class DeepShortcutTextView extends BubbleTextView {
     }
 
     @Override
-    /** Use the BubbleTextView icon for the start and the drag handle for the end. */
     protected void applyCompoundDrawables(Drawable icon) {
-        Drawable dragHandle = getResources().getDrawable(R.drawable.deep_shortcuts_drag_handle);
-        dragHandle.setBounds(0, 0, dragHandle.getIntrinsicWidth(), dragHandle.getIntrinsicHeight());
-        setCompoundDrawablesRelative(icon, null, dragHandle, null);
+        // The icon is drawn in a separate view.
     }
 }
diff --git a/src/com/android/launcher3/shortcuts/DeepShortcutView.java b/src/com/android/launcher3/shortcuts/DeepShortcutView.java
index 7cb2d43d7..b651f255b 100644
--- a/src/com/android/launcher3/shortcuts/DeepShortcutView.java
+++ b/src/com/android/launcher3/shortcuts/DeepShortcutView.java
@@ -17,21 +17,20 @@
 package com.android.launcher3.shortcuts;
 
 import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
 import android.content.Context;
-import android.content.res.Resources;
+import android.graphics.Point;
 import android.graphics.Rect;
 import android.util.AttributeSet;
-import android.view.animation.DecelerateInterpolator;
+import android.view.View;
 import android.widget.FrameLayout;
 
-import com.android.launcher3.BubbleTextView;
-import com.android.launcher3.LauncherAnimUtils;
-import com.android.launcher3.LauncherViewPropertyAnimator;
+import com.android.launcher3.IconCache;
+import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.R;
+import com.android.launcher3.ShortcutInfo;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.util.PillRevealOutlineProvider;
+import com.android.launcher3.util.PillWidthRevealOutlineProvider;
 
 /**
  * A {@link android.widget.FrameLayout} that contains a {@link DeepShortcutView}.
@@ -39,10 +38,12 @@ import com.android.launcher3.util.PillRevealOutlineProvider;
  */
 public class DeepShortcutView extends FrameLayout {
 
-    private int mRadius;
-    private Rect mPillRect;
+    private static final Point sTempPoint = new Point();
 
-    private BubbleTextView mBubbleText;
+    private final Rect mPillRect;
+
+    private DeepShortcutTextView mBubbleText;
+    private View mIconView;
 
     public DeepShortcutView(Context context) {
         this(context, null, 0);
@@ -55,70 +56,116 @@ public class DeepShortcutView extends FrameLayout {
     public DeepShortcutView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
 
-        mRadius = getResources().getDimensionPixelSize(R.dimen.bg_pill_radius);
         mPillRect = new Rect();
     }
 
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
-        mBubbleText = (BubbleTextView) findViewById(R.id.deep_shortcut);
+        mIconView = findViewById(R.id.deep_shortcut_icon);
+        mBubbleText = (DeepShortcutTextView) findViewById(R.id.deep_shortcut);
     }
 
-    public BubbleTextView getBubbleText() {
+    public DeepShortcutTextView getBubbleText() {
         return mBubbleText;
     }
 
+    public void setWillDrawIcon(boolean willDraw) {
+        mIconView.setVisibility(willDraw ? View.VISIBLE : View.INVISIBLE);
+    }
+
+    public boolean willDrawIcon() {
+        return mIconView.getVisibility() == View.VISIBLE;
+    }
+
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         mPillRect.set(0, 0, getMeasuredWidth(), getMeasuredHeight());
     }
 
-    @Override
-    public void setPivotX(float pivotX) {
-        super.setPivotX(pivotX);
-        mBubbleText.setPivotX(pivotX);
+    public void applyShortcutInfo(ShortcutInfo info) {
+        IconCache cache = LauncherAppState.getInstance().getIconCache();
+        mBubbleText.applyFromShortcutInfo(info, cache);
+        mIconView.setBackground(mBubbleText.getIcon());
     }
 
-    @Override
-    public void setPivotY(float pivotY) {
-        super.setPivotY(pivotY);
-        mBubbleText.setPivotY(pivotY);
+    public View getIconView() {
+        return mIconView;
+    }
+
+    /**
+     * Creates an animator to play when the shortcut container is being opened or closed.
+     */
+    public Animator createOpenCloseAnimation(
+            boolean isContainerAboveIcon, boolean pivotLeft, boolean isReverse) {
+        Point center = getIconCenter();
+        return new ZoomRevealOutlineProvider(center.x, center.y, mPillRect,
+                this, mIconView, isContainerAboveIcon, pivotLeft)
+                .createRevealAnimator(this, isReverse);
+    }
+
+    /**
+     * Creates an animator which clips the container to form a circle around the icon.
+     */
+    public Animator collapseToIcon() {
+        int halfHeight = getMeasuredHeight() / 2;
+        int iconCenterX = getIconCenter().x;
+        return new PillWidthRevealOutlineProvider(mPillRect,
+                iconCenterX - halfHeight, iconCenterX + halfHeight)
+                .createRevealAnimator(this, true);
     }
 
     /**
-     * Creates an animator to play when the shortcut container is being opened.
+     * Returns the position of the center of the icon relative to the container.
      */
-    public Animator createOpenAnimation(long animationDelay, boolean isContainerAboveIcon) {
-        final Resources res = getResources();
-        setVisibility(INVISIBLE);
-
-        AnimatorSet openAnimation = LauncherAnimUtils.createAnimatorSet();
-
-        Animator reveal = new PillRevealOutlineProvider((int) getPivotX(), (int) getPivotY(),
-                mPillRect, mRadius).createRevealAnimator(this);
-        reveal.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationStart(Animator animation) {
-                setVisibility(VISIBLE);
-            }
-        });
-
-        float transY = res.getDimensionPixelSize(R.dimen.deep_shortcut_anim_translation_y);
-        Animator translationY = ObjectAnimator.ofFloat(this, TRANSLATION_Y,
-                isContainerAboveIcon ? transY : -transY, 0);
-
-        // Only scale mBubbleText (the icon and text, not the background).
-        mBubbleText.setScaleX(0);
-        mBubbleText.setScaleY(0);
-        LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(mBubbleText)
-                .scaleX(1).scaleY(1);
-
-        openAnimation.playTogether(reveal, translationY, scale);
-        openAnimation.setStartDelay(animationDelay);
-        openAnimation.setDuration(res.getInteger(R.integer.config_deepShortcutOpenDuration));
-        openAnimation.setInterpolator(new DecelerateInterpolator());
-        return openAnimation;
+    public Point getIconCenter() {
+        sTempPoint.y = sTempPoint.x = getMeasuredHeight() / 2;
+        if (Utilities.isRtl(getResources())) {
+            sTempPoint.x = getMeasuredWidth() - sTempPoint.x;
+        }
+        return sTempPoint;
+    }
+
+    /**
+     * Extension of {@link PillRevealOutlineProvider} which scales the icon based on the height.
+     */
+    private static class ZoomRevealOutlineProvider extends PillRevealOutlineProvider {
+
+        private final View mTranslateView;
+        private final View mZoomView;
+
+        private final float mFullHeight;
+        private final float mTranslateYMultiplier;
+
+        private final boolean mPivotLeft;
+        private final float mTranslateX;
+
+        public ZoomRevealOutlineProvider(int x, int y, Rect pillRect,
+                View translateView, View zoomView, boolean isContainerAboveIcon, boolean pivotLeft) {
+            super(x, y, pillRect);
+            mTranslateView = translateView;
+            mZoomView = zoomView;
+            mFullHeight = pillRect.height();
+
+            mTranslateYMultiplier = isContainerAboveIcon ? 0.5f : -0.5f;
+
+            mPivotLeft = pivotLeft;
+            mTranslateX = pivotLeft ? pillRect.height() / 2 : pillRect.right - pillRect.height() / 2;
+        }
+
+        @Override
+        public void setProgress(float progress) {
+            super.setProgress(progress);
+
+            mZoomView.setScaleX(progress);
+            mZoomView.setScaleY(progress);
+
+            float height = mOutline.height();
+            mTranslateView.setTranslationY(mTranslateYMultiplier * (mFullHeight - height));
+
+            float pivotX = mPivotLeft ? (mOutline.left + height / 2) : (mOutline.right - height / 2);
+            mTranslateView.setTranslationX(mTranslateX - pivotX);
+        }
     }
 }
diff --git a/src/com/android/launcher3/shortcuts/DeepShortcutsContainer.java b/src/com/android/launcher3/shortcuts/DeepShortcutsContainer.java
index a693f150a..3a513f128 100644
--- a/src/com/android/launcher3/shortcuts/DeepShortcutsContainer.java
+++ b/src/com/android/launcher3/shortcuts/DeepShortcutsContainer.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.shortcuts;
 
 import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.annotation.TargetApi;
 import android.content.ComponentName;
@@ -39,6 +40,7 @@ import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewConfiguration;
+import android.view.animation.DecelerateInterpolator;
 import android.widget.LinearLayout;
 
 import com.android.launcher3.BubbleTextView;
@@ -50,6 +52,7 @@ import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherModel;
 import com.android.launcher3.LauncherViewPropertyAnimator;
+import com.android.launcher3.LogAccelerateInterpolator;
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutInfo;
 import com.android.launcher3.Utilities;
@@ -59,7 +62,6 @@ import com.android.launcher3.compat.UserHandleCompat;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragView;
-import com.android.launcher3.graphics.ScaledPreviewProvider;
 import com.android.launcher3.graphics.TriangleShape;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
@@ -78,6 +80,8 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
         UserEventDispatcher.LaunchSourceProvider {
     private static final String TAG = "ShortcutsContainer";
 
+    private final Point mIconShift = new Point();
+
     private final Launcher mLauncher;
     private final DeepShortcutManager mDeepShortcutsManager;
     private final int mDragDeadzone;
@@ -96,8 +100,12 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
     private boolean mIsLeftAligned;
     private boolean mIsAboveIcon;
     private View mArrow;
+
+    private Animator mOpenCloseAnimator;
+    private boolean mDeferContainerRemoval;
+    private boolean mIsOpen;
+
     private boolean mSrcIconDragStarted;
-    private LauncherViewPropertyAnimator mArrowHoverAnimator;
     private boolean mIsRtl;
     private int mArrowHorizontalOffset;
 
@@ -167,7 +175,6 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
         final int arrowVerticalOffset = resources.getDimensionPixelSize(
                 R.dimen.deep_shortcuts_arrow_vertical_offset);
         mArrow = addArrowView(mArrowHorizontalOffset, arrowVerticalOffset, arrowWidth, arrowHeight);
-        mArrowHoverAnimator = new LauncherViewPropertyAnimator(mArrow);
 
         animateOpen();
 
@@ -218,9 +225,9 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
 
         @Override
         public void run() {
+            DeepShortcutView shortcutViewContainer = getShortcutAt(mShortcutChildIndex);
+            shortcutViewContainer.applyShortcutInfo(mShortcutChildInfo);
             BubbleTextView shortcutView = getShortcutAt(mShortcutChildIndex).getBubbleText();
-            shortcutView.applyFromShortcutInfo(mShortcutChildInfo,
-                    LauncherAppState.getInstance().getIconCache());
             // Use the long label as long as it exists and fits.
             int availableWidth = shortcutView.getWidth() - shortcutView.getTotalPaddingLeft()
                     - shortcutView.getTotalPaddingRight();
@@ -248,30 +255,54 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
 
     private void animateOpen() {
         setVisibility(View.VISIBLE);
+        mIsOpen = true;
 
         final AnimatorSet shortcutAnims = LauncherAnimUtils.createAnimatorSet();
         final int shortcutCount = getShortcutCount();
-        final int pivotX = mIsLeftAligned ? mArrowHorizontalOffset
-                : getMeasuredWidth() - mArrowHorizontalOffset;
-        final int pivotY = getShortcutAt(0).getMeasuredHeight() / 2;
+
+        final long duration = getResources().getInteger(
+                R.integer.config_deepShortcutOpenDuration);
+        final long stagger = getResources().getInteger(
+                R.integer.config_deepShortcutOpenStagger);
+
+        // Animate shortcuts
+        DecelerateInterpolator interpolator = new DecelerateInterpolator();
         for (int i = 0; i < shortcutCount; i++) {
-            DeepShortcutView deepShortcutView = getShortcutAt(i);
-            deepShortcutView.setPivotX(pivotX);
-            deepShortcutView.setPivotY(pivotY);
+            final DeepShortcutView deepShortcutView = getShortcutAt(i);
+            deepShortcutView.setVisibility(INVISIBLE);
+
+            Animator anim = deepShortcutView.createOpenCloseAnimation(
+                    mIsAboveIcon, mIsLeftAligned, false);
+            anim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationStart(Animator animation) {
+                    deepShortcutView.setVisibility(VISIBLE);
+                }
+            });
+            anim.setDuration(duration);
             int animationIndex = mIsAboveIcon ? shortcutCount - i - 1 : i;
-            long animationDelay = animationIndex * getResources().getInteger(
-                    R.integer.config_deepShortcutOpenStagger);
-            shortcutAnims.play(deepShortcutView.createOpenAnimation(animationDelay, mIsAboveIcon));
+            anim.setStartDelay(stagger * animationIndex);
+            anim.setInterpolator(interpolator);
+            shortcutAnims.play(anim);
         }
+        shortcutAnims.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mOpenCloseAnimator = null;
+            }
+        });
+
+        // Animate the arrow
         mArrow.setScaleX(0);
         mArrow.setScaleY(0);
-        final long shortcutAnimDuration = shortcutAnims.getChildAnimations().get(0).getDuration();
-        final long arrowScaleDelay = shortcutAnimDuration / 6;
-        final long arrowScaleDuration = shortcutAnimDuration - arrowScaleDelay;
+        final long arrowScaleDelay = duration / 6;
+        final long arrowScaleDuration = duration - arrowScaleDelay;
         Animator arrowScale = new LauncherViewPropertyAnimator(mArrow).scaleX(1).scaleY(1);
         arrowScale.setStartDelay(arrowScaleDelay);
         arrowScale.setDuration(arrowScaleDuration);
         shortcutAnims.play(arrowScale);
+
+        mOpenCloseAnimator = shortcutAnims;
         shortcutAnims.start();
     }
 
@@ -432,7 +463,6 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
         Utilities.translateEventCoordinates(this, mLauncher.getDragLayer(), ev);
         final int dragLayerX = (int) ev.getX();
         final int dragLayerY = (int) ev.getY();
-        int shortcutCount = getShortcutCount();
         if (action == MotionEvent.ACTION_MOVE) {
             if (mLastX != 0 || mLastY != 0) {
                 mDistanceDragged += Math.hypot(mLastX - x, mLastY - y);
@@ -441,8 +471,6 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
             mLastY = y;
 
             if (shouldStartDeferredDrag((int) x, (int) y)) {
-            DeepShortcutView topShortcut = getShortcutAt(0);
-            DeepShortcutView bottomShortcut = getShortcutAt(shortcutCount - 1);
                 mSrcIconDragStarted = true;
                 cleanupDeferredDrag(true);
                 mDeferredDragIcon.getParent().requestDisallowInterceptTouchEvent(false);
@@ -480,7 +508,7 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
         return distFromTouchDown > mStartDragThreshold;
     }
 
-    public void cleanupDeferredDrag(boolean updateSrcVisibility) {
+    private void cleanupDeferredDrag(boolean updateSrcVisibility) {
         if (mDragView != null) {
             mDragView.remove();
         }
@@ -502,8 +530,8 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
     }
 
     public boolean onLongClick(View v) {
-        // Return early if this is not initiated from a touch
-        if (!v.isInTouchMode()) return false;
+        // Return early if this is not initiated from a touch or not the correct view
+        if (!v.isInTouchMode() || !(v.getParent() instanceof DeepShortcutView)) return false;
         // Return if global dragging is not enabled
         if (!mLauncher.isDraggingEnabled()) return false;
 
@@ -514,8 +542,20 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
         mLauncher.getModel().updateShortcutInfo(unbadgedInfo.mDetail, badged);
 
         // Long clicked on a shortcut.
-        mLauncher.getWorkspace().beginDragShared(v, mIconLastTouchPos, this, false, badged,
-                new ScaledPreviewProvider(v));
+
+        mDeferContainerRemoval = true;
+        DeepShortcutView sv = (DeepShortcutView) v.getParent();
+        sv.setWillDrawIcon(false);
+
+        // Move the icon to align with the center-top of the touch point
+        mIconShift.x = mIconLastTouchPos.x - sv.getIconCenter().x;
+        mIconShift.y = mIconLastTouchPos.y - mLauncher.getDeviceProfile().iconSizePx;
+
+        DragView dv = mLauncher.getWorkspace().beginDragShared(
+                sv.getBubbleText(), this, false, badged,
+                new ShortcutDragPreviewProvider(sv.getIconView(), mIconShift));
+        dv.animateShift(-mIconShift.x, -mIconShift.y);
+
         // TODO: support dragging from within folder without having to close it
         mLauncher.closeFolder();
         return false;
@@ -560,13 +600,25 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
     public void onDragStart(DragSource source, ItemInfo info, int dragAction) {
         // Either the original icon or one of the shortcuts was dragged.
         // Hide the container, but don't remove it yet because that interferes with touch events.
-        setVisibility(INVISIBLE);
+        animateClose();
     }
 
     @Override
     public void onDragEnd() {
-        // Now remove the container.
-        mLauncher.closeShortcutsContainer();
+        if (mIsOpen) {
+            animateClose();
+        } else {
+            if (mOpenCloseAnimator != null) {
+                // Close animation is running.
+                mDeferContainerRemoval = false;
+            } else {
+                // Close animation is not running.
+                if (mDeferContainerRemoval) {
+                    mDeferContainerRemoval = false;
+                    mLauncher.getDragLayer().removeView(this);
+                }
+            }
+        }
     }
 
     @Override
@@ -576,6 +628,105 @@ public class DeepShortcutsContainer extends LinearLayout implements View.OnLongC
         targetParent.containerType = LauncherLogProto.DEEPSHORTCUTS;
     }
 
+    public void animateClose() {
+        if (!mIsOpen) {
+            return;
+        }
+        if (mOpenCloseAnimator != null) {
+            mOpenCloseAnimator.cancel();
+        }
+        mIsOpen = false;
+        mLauncher.getDragController().removeDragListener(this);
+
+        final AnimatorSet shortcutAnims = LauncherAnimUtils.createAnimatorSet();
+        final int numShortcuts = getShortcutCount();
+        final long duration = getResources().getInteger(
+                R.integer.config_deepShortcutCloseDuration);
+        final long stagger = getResources().getInteger(
+                R.integer.config_deepShortcutCloseStagger);
+
+        long arrowDelay = (numShortcuts - 1) * stagger + (duration * 4 / 6);
+        int firstShortcutIndex = mIsAboveIcon ? (numShortcuts - 1) : 0;
+        LogAccelerateInterpolator interpolator = new LogAccelerateInterpolator(100, 0);
+        for (int i = 0; i < numShortcuts; i++) {
+            final DeepShortcutView view = getShortcutAt(i);
+            Animator anim;
+            if (view.willDrawIcon()) {
+                anim = view.createOpenCloseAnimation(mIsAboveIcon, mIsLeftAligned, true);
+                int animationIndex = mIsAboveIcon ? i : numShortcuts - i - 1;
+                anim.setStartDelay(stagger * animationIndex);
+                anim.setDuration(duration);
+                anim.setInterpolator(interpolator);
+            } else {
+                // The view is being dragged. Animate it such that it collapses with the drag view
+                anim = view.collapseToIcon();
+                anim.setDuration(DragView.VIEW_ZOOM_DURATION);
+
+                // Scale and translate the view to follow the drag view.
+                Point iconCenter = view.getIconCenter();
+                view.setPivotX(iconCenter.x);
+                view.setPivotY(iconCenter.y);
+
+                float scale = ((float) mLauncher.getDeviceProfile().iconSizePx) / view.getHeight();
+                LauncherViewPropertyAnimator anim2 = new LauncherViewPropertyAnimator(view)
+                        .scaleX(scale)
+                        .scaleY(scale)
+                        .translationX(mIconShift.x)
+                        .translationY(mIconShift.y);
+                anim2.setDuration(DragView.VIEW_ZOOM_DURATION);
+                shortcutAnims.play(anim2);
+
+                if (i == firstShortcutIndex) {
+                    arrowDelay = 0;
+                }
+            }
+            anim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    view.setVisibility(INVISIBLE);
+                }
+            });
+            shortcutAnims.play(anim);
+        }
+        Animator arrowAnim = new LauncherViewPropertyAnimator(mArrow)
+                .scaleX(0).scaleY(0).setDuration(duration / 6);
+        arrowAnim.setStartDelay(arrowDelay);
+        shortcutAnims.play(arrowAnim);
+
+        shortcutAnims.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                mOpenCloseAnimator = null;
+                if (mDeferContainerRemoval) {
+                    setVisibility(INVISIBLE);
+                } else {
+                    close();
+                }
+            }
+        });
+        mOpenCloseAnimator = shortcutAnims;
+        shortcutAnims.start();
+    }
+
+    /**
+     * Closes the folder without animation.
+     */
+    public void close() {
+        if (mOpenCloseAnimator != null) {
+            mOpenCloseAnimator.cancel();
+            mOpenCloseAnimator = null;
+        }
+        mIsOpen = false;
+        mDeferContainerRemoval = false;
+        cleanupDeferredDrag(true);
+        mLauncher.getDragController().removeDragListener(this);
+        mLauncher.getDragLayer().removeView(this);
+    }
+
+    public boolean isOpen() {
+        return mIsOpen;
+    }
+
     /**
      * Shows the shortcuts container for {@param icon}
      * @return the container if shown or null.
diff --git a/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java b/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
new file mode 100644
index 000000000..a25e475d4
--- /dev/null
+++ b/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2016 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.shortcuts;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.view.View;
+import android.widget.ImageView;
+
+import com.android.launcher3.BubbleTextView;
+import com.android.launcher3.HolographicOutlineHelper;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.graphics.DragPreviewProvider;
+
+/**
+ * Extension of {@link DragPreviewProvider} which generates bitmaps scaled to the default icon size.
+ */
+public class ShortcutDragPreviewProvider extends DragPreviewProvider {
+
+    private final Point mPositionShift;
+
+    public ShortcutDragPreviewProvider(View icon, Point shift) {
+        super(icon);
+        mPositionShift = shift;
+    }
+
+    @Override
+    public Bitmap createDragOutline(Canvas canvas) {
+        Bitmap b = drawScaledPreview(canvas);
+
+        final int outlineColor = mView.getResources().getColor(R.color.outline_color);
+        HolographicOutlineHelper.obtain(mView.getContext())
+                .applyExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
+        canvas.setBitmap(null);
+        return b;
+    }
+
+    @Override
+    public Bitmap createDragBitmap(Canvas canvas) {
+        Bitmap b = drawScaledPreview(canvas);
+        canvas.setBitmap(null);
+        return b;
+    }
+
+    private Bitmap drawScaledPreview(Canvas canvas) {
+        Drawable d = mView.getBackground();
+        Rect bounds = getDrawableBounds(d);
+
+        int size = Launcher.getLauncher(mView.getContext()).getDeviceProfile().iconSizePx;
+
+        final Bitmap b = Bitmap.createBitmap(
+                size + DRAG_BITMAP_PADDING,
+                size + DRAG_BITMAP_PADDING,
+                Bitmap.Config.ARGB_8888);
+
+        canvas.setBitmap(b);
+        canvas.save(Canvas.MATRIX_SAVE_FLAG);
+        canvas.translate(DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2);
+        canvas.scale(((float) size) / bounds.width(), ((float) size) / bounds.height(), 0, 0);
+        canvas.translate(bounds.left, bounds.top);
+        d.draw(canvas);
+        canvas.restore();
+        return b;
+    }
+
+    @Override
+    public float getScaleAndPosition(Bitmap preview, int[] outPos) {
+        Launcher launcher = Launcher.getLauncher(mView.getContext());
+        int iconSize = getDrawableBounds(mView.getBackground()).width();
+        float scale = launcher.getDragLayer().getLocationInDragLayer(mView, outPos);
+
+        int iconLeft = mView.getPaddingStart();
+        if (Utilities.isRtl(mView.getResources())) {
+            iconLeft = mView.getWidth() - iconSize - iconLeft;
+        }
+
+        outPos[0] += Math.round(scale * iconLeft + (scale * iconSize - preview.getWidth()) / 2 +
+                mPositionShift.x);
+        outPos[1] += Math.round((scale * mView.getHeight() - preview.getHeight()) / 2
+                + mPositionShift.y);
+        float size = launcher.getDeviceProfile().iconSizePx;
+        return scale * iconSize / size;
+    }
+}