Some drag and drop code refactor:

1) Adding DragOptions to easily extend drap functionality
2) Changing onDragStarted signature to send more information
3) Updating states for dropTargetButton based on drag event directly
4) Removing folder item based on onDragStarted and not startDrag

Change-Id: I65b684e092ddc081d086bfe2c8c1973ed170eaeb

2 files changed, 5 insertions, 2 deletions

diff --git a/src/com/android/launcher3/widget/WidgetHostViewLoader.java b/src/com/android/launcher3/widget/WidgetHostViewLoader.java
index 297505be2..049871f98 100644
--- a/src/com/android/launcher3/widget/WidgetHostViewLoader.java
+++ b/src/com/android/launcher3/widget/WidgetHostViewLoader.java
@@ -11,6 +11,7 @@ import android.view.View;
 
 import com.android.launcher3.AppWidgetResizeFrame;
 import com.android.launcher3.DragSource;
+import com.android.launcher3.DropTarget;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
@@ -18,6 +19,7 @@ import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.AppWidgetManagerCompat;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
+import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.util.Thunk;
 
 public class WidgetHostViewLoader implements DragController.DragListener {
@@ -47,7 +49,7 @@ public class WidgetHostViewLoader implements DragController.DragListener {
     }
 
     @Override
-    public void onDragStart(DragSource source, ItemInfo info, int dragAction) { }
+    public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { }
 
     @Override
     public void onDragEnd() {
diff --git a/src/com/android/launcher3/widget/WidgetsContainerView.java b/src/com/android/launcher3/widget/WidgetsContainerView.java
index 4b2be1816..70b2945f5 100644
--- a/src/com/android/launcher3/widget/WidgetsContainerView.java
+++ b/src/com/android/launcher3/widget/WidgetsContainerView.java
@@ -33,6 +33,7 @@ import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeleteDropTarget;
 import com.android.launcher3.DragSource;
 import com.android.launcher3.DropTarget.DragObject;
+import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.IconCache;
 import com.android.launcher3.ItemInfo;
@@ -251,7 +252,7 @@ public class WidgetsContainerView extends BaseContainerView
 
         // Start the drag
         mDragController.startDrag(image, preview, this, createItemInfo,
-                bounds, DragController.DRAG_ACTION_COPY, scale);
+                bounds, scale, new DragOptions());
         return true;
     }