Fix 3514114: Dropping on mini-screens doesn't place items correctly

Change-Id: I7176562f1a62ca9973a256e53151aac1ff708144

src/com/android/launcher2/CustomizePagedView.java

@@ -452,6 +452,7 @@ public class CustomizePagedView extends PagedViewWithDraggableItems
             public void onAnimationEnd(Animator animation) {
                 dragLayer.removeView(view);
                 mLauncher.addExternalItemToScreen(info, layout);
+                info.dropPos = null;
             }
         });
         anim.start();

src/com/android/launcher2/ItemInfo.java

@@ -81,6 +81,11 @@ class ItemInfo {
      */
     boolean isGesture = false;
 
+    /**
+     * The position of the item in a drag-and-drop operation.
+     */
+    int[] dropPos = null;
+
     ItemInfo() {
     }
 

src/com/android/launcher2/Workspace.java

@@ -2296,12 +2296,14 @@ public class Workspace extends SmoothPagedView
         }
 
         if (source != this) {
+            final int[] touchXY = new int[] { originX, originY };
             if ((mIsSmall || mIsInUnshrinkAnimation) && !mLauncher.isAllAppsVisible()) {
                 // When the workspace is shrunk and the drop comes from customize, don't actually
                 // add the item to the screen -- customize will do this itself
+                ((ItemInfo) dragInfo).dropPos = touchXY;
                 return;
             }
-            onDropExternal(new int[] { originX, originY }, dragInfo, mDragTargetLayout, false);
+            onDropExternal(touchXY, dragInfo, mDragTargetLayout, false);
         } else if (mDragInfo != null) {
             final View cell = mDragInfo.cell;
             CellLayout dropTargetLayout = mDragTargetLayout;
@@ -2837,7 +2839,7 @@ public class Workspace extends SmoothPagedView
      */
     public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) {
         if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) {
-            onDropExternal(null, (ItemInfo) dragInfo, (CellLayout) layout, false);
+            onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false);
             return true;
         }
         mLauncher.showOutOfSpaceMessage();