Merge "Re-add the option to migrate data back."
diff --git a/src/com/android/settings/applications/PackageManagerWrapper.java b/src/com/android/settings/applications/PackageManagerWrapper.java
index 2be92ed..4fd2ba0 100644
--- a/src/com/android/settings/applications/PackageManagerWrapper.java
+++ b/src/com/android/settings/applications/PackageManagerWrapper.java
@@ -23,6 +23,7 @@
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.UserHandle;
+import android.os.storage.VolumeInfo;
 
 import java.util.List;
 
@@ -98,4 +99,9 @@
      */
     void replacePreferredActivity(IntentFilter homeFilter, int matchCategoryEmpty,
             ComponentName[] componentNames, ComponentName component);
+
+    /**
+     * Calls {@code PackageManager.getPrimaryStorageCurrentVolume}
+     */
+    VolumeInfo getPrimaryStorageCurrentVolume();
 }
diff --git a/src/com/android/settings/applications/PackageManagerWrapperImpl.java b/src/com/android/settings/applications/PackageManagerWrapperImpl.java
index 698c14c..1ca7bd2 100644
--- a/src/com/android/settings/applications/PackageManagerWrapperImpl.java
+++ b/src/com/android/settings/applications/PackageManagerWrapperImpl.java
@@ -23,6 +23,7 @@
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.UserHandle;
+import android.os.storage.VolumeInfo;
 
 import java.util.List;
 
@@ -90,4 +91,9 @@
             ComponentName[] componentNames, ComponentName component) {
         mPm.replacePreferredActivity(homeFilter, matchCategoryEmpty, componentNames, component);
     }
+
+    @Override
+    public VolumeInfo getPrimaryStorageCurrentVolume() {
+        return mPm.getPrimaryStorageCurrentVolume();
+    }
 }
diff --git a/src/com/android/settings/deviceinfo/PrivateVolumeOptionMenuController.java b/src/com/android/settings/deviceinfo/PrivateVolumeOptionMenuController.java
new file mode 100644
index 0000000..4724c3d
--- /dev/null
+++ b/src/com/android/settings/deviceinfo/PrivateVolumeOptionMenuController.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.storage.VolumeInfo;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+
+import com.android.settings.R;
+import com.android.settings.applications.PackageManagerWrapper;
+import com.android.settings.core.lifecycle.Lifecycle;
+import com.android.settings.core.lifecycle.LifecycleObserver;
+import com.android.settings.core.lifecycle.events.OnCreateOptionsMenu;
+import com.android.settings.core.lifecycle.events.OnOptionsItemSelected;
+import com.android.settings.core.lifecycle.events.OnPrepareOptionsMenu;
+
+import java.util.Objects;
+
+/**
+ * Handles the option menu on the Storage settings.
+ */
+public class PrivateVolumeOptionMenuController implements LifecycleObserver, OnCreateOptionsMenu,
+        OnPrepareOptionsMenu, OnOptionsItemSelected {
+    private static final int OPTIONS_MENU_MIGRATE_DATA = 100;
+
+    private Context mContext;
+    private VolumeInfo mVolumeInfo;
+    private PackageManagerWrapper mPm;
+
+    public PrivateVolumeOptionMenuController(
+            Context context, VolumeInfo volumeInfo, PackageManagerWrapper packageManager) {
+        mContext = context;
+        mVolumeInfo = volumeInfo;
+        mPm = packageManager;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
+        menu.add(Menu.NONE, OPTIONS_MENU_MIGRATE_DATA, 0, R.string.storage_menu_migrate);
+    }
+
+    @Override
+    public void onPrepareOptionsMenu(Menu menu) {
+        if (mVolumeInfo == null) {
+            return;
+        }
+
+        // Only offer to migrate when not current storage
+        final VolumeInfo privateVol = mPm.getPrimaryStorageCurrentVolume();
+        final MenuItem migrate = menu.findItem(OPTIONS_MENU_MIGRATE_DATA);
+        if (migrate != null) {
+            migrate.setVisible((privateVol != null)
+                    && (privateVol.getType() == VolumeInfo.TYPE_PRIVATE)
+                    && !Objects.equals(mVolumeInfo, privateVol));
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem menuItem) {
+        if (menuItem.getItemId() == OPTIONS_MENU_MIGRATE_DATA) {
+            final Intent intent = new Intent(mContext, StorageWizardMigrateConfirm.class);
+            intent.putExtra(VolumeInfo.EXTRA_VOLUME_ID, mVolumeInfo.getId());
+            mContext.startActivity(intent);
+            return true;
+        }
+        return false;
+    }
+}
diff --git a/src/com/android/settings/deviceinfo/StorageDashboardFragment.java b/src/com/android/settings/deviceinfo/StorageDashboardFragment.java
index 18393ac..75c0e75 100644
--- a/src/com/android/settings/deviceinfo/StorageDashboardFragment.java
+++ b/src/com/android/settings/deviceinfo/StorageDashboardFragment.java
@@ -18,6 +18,7 @@
 
 import android.app.LoaderManager;
 import android.content.Context;
+import android.content.Intent;
 import android.content.Loader;
 import android.os.Bundle;
 import android.os.UserHandle;
@@ -25,11 +26,17 @@
 import android.os.storage.StorageManager;
 import android.os.storage.VolumeInfo;
 import android.provider.SearchIndexableResource;
+import android.support.annotation.VisibleForTesting;
+import android.util.Log;
 import android.util.SparseArray;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
 import com.android.settings.Utils;
+import com.android.settings.applications.PackageManagerWrapper;
 import com.android.settings.applications.PackageManagerWrapperImpl;
 import com.android.settings.applications.UserManagerWrapper;
 import com.android.settings.applications.UserManagerWrapperImpl;
@@ -48,16 +55,19 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 
 public class StorageDashboardFragment extends DashboardFragment
     implements LoaderManager.LoaderCallbacks<SparseArray<StorageAsyncLoader.AppsStorageResult>> {
     private static final String TAG = "StorageDashboardFrag";
     private static final int STORAGE_JOB_ID = 0;
+    private static final int OPTIONS_MENU_MIGRATE_DATA = 100;
 
     private VolumeInfo mVolume;
 
     private StorageSummaryDonutPreferenceController mSummaryController;
     private StorageItemPreferenceController mPreferenceController;
+    private PrivateVolumeOptionMenuController mOptionMenuController;
     private List<PreferenceController> mSecondaryUsers;
 
     @Override
@@ -101,6 +111,9 @@
             return;
         }
 
+        mOptionMenuController = new PrivateVolumeOptionMenuController(
+                context, mVolume, new PackageManagerWrapperImpl(context.getPackageManager()));
+
         final long sharedDataSize = mVolume.getPath().getTotalSpace();
         long totalSize = sm.getPrimaryStorageSize();
         long systemSize = totalSize - sharedDataSize;
@@ -161,10 +174,16 @@
                 new AutomaticStorageManagementSwitchPreferenceController(
                         context, mMetricsFeatureProvider, getFragmentManager());
         getLifecycle().addObserver(asmController);
+        getLifecycle().addObserver(mOptionMenuController);
         controllers.add(asmController);
         return controllers;
     }
 
+    @VisibleForTesting
+    protected void setVolume(VolumeInfo info) {
+        mVolume = info;
+    }
+
     /**
      * Updates the secondary user controller sizes.
      */
diff --git a/tests/robotests/src/com/android/settings/deviceinfo/PrivateVolumeOptionMenuControllerTest.java b/tests/robotests/src/com/android/settings/deviceinfo/PrivateVolumeOptionMenuControllerTest.java
new file mode 100644
index 0000000..9ac9eb4
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/deviceinfo/PrivateVolumeOptionMenuControllerTest.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.os.storage.VolumeInfo;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+
+import com.android.settings.R;
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+import com.android.settings.applications.PackageManagerWrapper;
+import com.android.settings.testutils.FakeFeatureFactory;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowApplication;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class PrivateVolumeOptionMenuControllerTest {
+    @Mock
+    private MenuItem mMigrateMenuItem;
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Menu mMenu;
+    @Mock
+    private MenuInflater mMenuInflater;
+    @Mock
+    private PackageManagerWrapper mPm;
+    @Mock
+    private VolumeInfo mVolumeInfo;
+    @Mock
+    private VolumeInfo mPrimaryInfo;
+
+    private PrivateVolumeOptionMenuController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        when(mVolumeInfo.getType()).thenReturn(VolumeInfo.TYPE_PRIVATE);
+        when(mPrimaryInfo.getType()).thenReturn(VolumeInfo.TYPE_PRIVATE);
+        when(mMenu.findItem(anyInt())).thenReturn(mMigrateMenuItem);
+        when(mMigrateMenuItem.getItemId()).thenReturn(100);
+
+        mController = new PrivateVolumeOptionMenuController(
+                RuntimeEnvironment.application, mPrimaryInfo, mPm);
+    }
+
+    @Test
+    public void testMigrateDataMenuItemIsAdded() {
+        mController.onCreateOptionsMenu(mMenu, mMenuInflater);
+
+        verify(mMenu).add(Menu.NONE, 100, Menu.NONE, R.string.storage_menu_migrate);
+    }
+
+    @Test
+    public void testMigrateDataIsNotVisibleNormally() {
+        when(mPm.getPrimaryStorageCurrentVolume()).thenReturn(mPrimaryInfo);
+
+        mController.onCreateOptionsMenu(mMenu, mMenuInflater);
+        mController.onPrepareOptionsMenu(mMenu);
+
+        verify(mMigrateMenuItem).setVisible(false);
+    }
+
+    @Test
+    public void testMigrateDataIsVisibleWhenExternalVolumeIsPrimary() {
+        when(mPm.getPrimaryStorageCurrentVolume()).thenReturn(mVolumeInfo);
+
+        mController.onCreateOptionsMenu(mMenu, mMenuInflater);
+        mController.onPrepareOptionsMenu(mMenu);
+
+        verify(mMigrateMenuItem).setVisible(true);
+    }
+
+    @Test
+    public void testMigrateDataGoesToMigrateWizard() {
+        when(mPm.getPrimaryStorageCurrentVolume()).thenReturn(mVolumeInfo);
+
+        mController.onCreateOptionsMenu(mMenu, mMenuInflater);
+        mController.onPrepareOptionsMenu(mMenu);
+
+        assertThat(mController.onOptionsItemSelected(mMigrateMenuItem)).isTrue();
+        assertThat(ShadowApplication.getInstance()
+                .getNextStartedActivity().getComponent().getClassName())
+                .isEqualTo(StorageWizardMigrateConfirm.class.getName());
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/deviceinfo/StorageDashboardFragmentTest.java b/tests/robotests/src/com/android/settings/deviceinfo/StorageDashboardFragmentTest.java
index 9baeda3..b3253f9 100644
--- a/tests/robotests/src/com/android/settings/deviceinfo/StorageDashboardFragmentTest.java
+++ b/tests/robotests/src/com/android/settings/deviceinfo/StorageDashboardFragmentTest.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License
  */
+
 package com.android.settings.deviceinfo;
 
-import android.os.Bundle;
-import android.os.storage.DiskInfo;
+import static com.google.common.truth.Truth.assertThat;
+
 import android.os.storage.StorageManager;
-import android.os.storage.VolumeInfo;
 import android.provider.SearchIndexableResource;
 
 import com.android.settings.SettingsRobolectricTestRunner;
@@ -36,15 +36,9 @@
 
 import java.util.List;
 
-import static com.google.common.truth.Truth.assertThat;
-
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Mockito.when;
-
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
 public class StorageDashboardFragmentTest {
-
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     private StorageManager mStorageManager;