Docsui-level work for implementing Eject on Roots list.

1. Added Eject Icon for Roots that support eject
2. Added Context Menu for RootsFragment (Settings and Eject)

Bug: 29584653
Change-Id: I97f582de05763e3f0327bc0d2dc6d4e2222e047c
(cherry picked from commit d96661f8b0f613b40f2bdfc178bbe06022b5f76c)

1 files changed, 14 insertions, 7 deletions

diff --git a/packages/DocumentsUI/src/com/android/documentsui/FilesMenuManager.java b/packages/DocumentsUI/src/com/android/documentsui/FilesMenuManager.java
index 78d95f64f611..e1da94470695 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/FilesMenuManager.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/FilesMenuManager.java
@@ -16,16 +16,11 @@
 
 package com.android.documentsui;
 
-import static com.android.documentsui.State.ACTION_CREATE;
-import static com.android.documentsui.State.ACTION_GET_CONTENT;
-import static com.android.documentsui.State.ACTION_OPEN;
-import static com.android.documentsui.State.ACTION_OPEN_TREE;
-import static com.android.documentsui.State.ACTION_PICK_COPY_DESTINATION;
-
+import android.provider.DocumentsContract.Root;
 import android.view.Menu;
 import android.view.MenuItem;
 
-import com.android.documentsui.MenuManager.DirectoryDetails;
+import com.android.documentsui.model.RootInfo;
 
 final class FilesMenuManager extends MenuManager {
 
@@ -42,6 +37,18 @@ final class FilesMenuManager extends MenuManager {
     }
 
     @Override
+    void updateSettings(MenuItem settings, RootInfo root) {
+        settings.setVisible(true);
+        settings.setEnabled(root.hasSettings());
+    }
+
+    @Override
+    void updateEject(MenuItem eject, RootInfo root) {
+        eject.setVisible(true);
+        eject.setEnabled(((root.flags & Root.FLAG_SUPPORTS_EJECT) > 0) && !root.ejecting);
+    }
+
+    @Override
     void updateSettings(MenuItem settings, DirectoryDetails directoryDetails) {
         settings.setVisible(directoryDetails.hasRootSettings());
     }