Fixing a couple folder bugs

-> Issue 4947774 - logic for determining workspace full
-> Issue 4967906 - hiding hint text on begin edit
-> Stripped out some no longer needed code from Workspace

Change-Id: I62b0e5c2dbf424af6b8b29af9b70270d68923eba
diff --git a/src/com/android/launcher2/Folder.java b/src/com/android/launcher2/Folder.java
index 0454430..c1580b1 100644
--- a/src/com/android/launcher2/Folder.java
+++ b/src/com/android/launcher2/Folder.java
@@ -99,12 +99,14 @@
     private Alarm mOnExitAlarm = new Alarm();
     private TextView mFolderName;
     private int mFolderNameHeight;
-    private static String sDefaultFolderName;
     private Rect mHitRect = new Rect();
 
     private boolean mIsEditingName = false;
     private InputMethodManager mInputMethodManager;
 
+    private static String sDefaultFolderName;
+    private static String sHintText;
+
     /**
      * Used to inflate the Workspace from XML.
      *
@@ -128,6 +130,9 @@
         if (sDefaultFolderName == null) {
             sDefaultFolderName = res.getString(R.string.folder_name);
         }
+        if (sHintText == null) {
+            sHintText = res.getString(R.string.folder_hint_text);
+        }
     }
 
     @Override
@@ -229,6 +234,7 @@
     }
 
     public void startEditingFolderName() {
+        mFolderName.setHint("");
         mFolderName.setCursorVisible(true);
         mIsEditingName = true;
     }
@@ -239,6 +245,7 @@
     }
 
     public void doneEditingFolderName(boolean commit) {
+        mFolderName.setHint(sHintText);
         mInfo.setTitle(mFolderName.getText());
         LauncherModel.updateItemInDatabase(mLauncher, mInfo);
         mFolderName.setCursorVisible(false);