Make Convert To File Encryption work

Actually call to recovery from ConvertToFBE
Adding credential check
Gray out Convert option when converted

Change-Id: Ic98929ff49733d182b529012e58870156f40679a

src/com/android/settings/applications/ConvertToFBE.java

@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2015 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.applications;
-
-import android.app.Fragment;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-
-import com.android.settings.R;
-
-/* Class to prompt for conversion of userdata to file based encryption
- */
-public class ConvertToFBE extends Fragment {
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-                Bundle savedInstanceState) {
-        View rootView = inflater.inflate(R.layout.convert_fbe, null);
-
-        final Button button = (Button) rootView.findViewById(R.id.button_convert_fbe);
-        button.setOnClickListener(new View.OnClickListener() {
-                public void onClick(View v) {
-                    // Perform action on click
-                }
-            });
-
-        return rootView;
-    }
-}

src/com/android/settings/applications/ConvertToFbe.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2015 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.applications;
+
+import android.app.Activity;
+import android.app.Fragment;
+import android.content.Intent;
+import android.content.res.Resources;
+import android.os.Bundle;
+import android.os.RecoverySystem;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import com.android.settings.ChooseLockSettingsHelper;
+import com.android.settings.SettingsActivity;
+import com.android.settings.R;
+
+import java.io.IOException;
+
+/* Class to prompt for conversion of userdata to file based encryption
+ */
+public class ConvertToFbe extends Fragment {
+    static final String TAG = "ConvertToFBE";
+    static final String CONVERT_FBE_EXTRA = "ConvertFBE";
+    private static final int KEYGUARD_REQUEST = 55;
+
+    private boolean runKeyguardConfirmation(int request) {
+        Resources res = getActivity().getResources();
+        return new ChooseLockSettingsHelper(getActivity(), this)
+            .launchConfirmationActivity(request,
+                                        res.getText(R.string.convert_to_file_encryption));
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.convert_fbe, null);
+
+        final Button button = (Button) rootView.findViewById(R.id.button_convert_fbe);
+        button.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                if(!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
+                    convert();
+                }
+            }
+        });
+
+        return rootView;
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode != KEYGUARD_REQUEST) {
+            return;
+        }
+
+        // If the user entered a valid keyguard credential, start the conversion
+        // process
+        if (resultCode == Activity.RESULT_OK) {
+            convert();
+        }
+    }
+
+    private void convert() {
+        Intent intent = new Intent(Intent.ACTION_MASTER_CLEAR);
+        intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
+        intent.putExtra(Intent.EXTRA_REASON, "convert_fbe");
+        getActivity().sendBroadcast(intent);
+    }
+}