Cleaning up some drop-target issues.

- Setting text color during drag over transitions
- Fixing regression in drop target padding
= Using old drop-down animation where possible

Change-Id: Ia1c5ec9e58fc734d28133349d9920d123ed71ae6

src/com/android/launcher2/DeleteDropTarget.java

@@ -17,6 +17,7 @@
 package com.android.launcher2;
 
 import android.content.Context;
+import android.content.res.ColorStateList;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.graphics.PorterDuff;
@@ -31,6 +32,7 @@ import com.android.launcher.R;
 public class DeleteDropTarget extends ButtonDropTarget {
 
     private TextView mText;
+    private ColorStateList mOriginalTextColor;
     private TransitionDrawable mDrawable;
     private int mHoverColor = 0xFFFF0000;
 
@@ -48,6 +50,7 @@ public class DeleteDropTarget extends ButtonDropTarget {
 
         // Get the drawable
         mText = (TextView) findViewById(R.id.delete_target_text);
+        mOriginalTextColor = mText.getTextColors();
 
         // Get the hover color
         Resources r = getResources();
@@ -114,6 +117,7 @@ public class DeleteDropTarget extends ButtonDropTarget {
 
         mActive = isVisible;
         mDrawable.resetTransition();
+        mText.setTextColor(mOriginalTextColor);
         setVisibility(isVisible ? View.VISIBLE : View.GONE);
         if (mText.getText().length() > 0) {
             mText.setText(isUninstall ? R.string.delete_target_uninstall_label
@@ -131,6 +135,7 @@ public class DeleteDropTarget extends ButtonDropTarget {
         super.onDragEnter(d);
 
         mDrawable.startTransition(mTransitionDuration);
+        mText.setTextColor(mHoverColor);
     }
 
     public void onDragExit(DragObject d) {
@@ -138,6 +143,7 @@ public class DeleteDropTarget extends ButtonDropTarget {
 
         if (!d.dragComplete) {
             mDrawable.resetTransition();
+            mText.setTextColor(mOriginalTextColor);
         }
     }