Add a checkbox option to 'require password to decrypt'

Fixes bug 17881324

Change-Id: I3f256f448a35cf8104ee6acb4de253874101f7c0

1 files changed, 129 insertions, 0 deletions

diff --git a/src/com/android/settings/EncryptionInterstitial.java b/src/com/android/settings/EncryptionInterstitial.java
new file mode 100644
index 0000000..8a62001
--- /dev/null
+++ b/src/com/android/settings/EncryptionInterstitial.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2014 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;
+
+import com.android.settings.R;
+import com.android.settings.SettingsActivity;
+import com.android.settings.SettingsPreferenceFragment;
+
+import android.app.admin.DevicePolicyManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.PersistableBundle;
+import android.provider.Settings;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.RadioButton;
+import android.widget.TextView;
+
+public class EncryptionInterstitial extends SettingsActivity {
+
+    private static final String EXTRA_PASSWORD_QUALITY = "extra_password_quality";
+
+    @Override
+    public Intent getIntent() {
+        Intent modIntent = new Intent(super.getIntent());
+        modIntent.putExtra(EXTRA_SHOW_FRAGMENT, EncryptionInterstitialFragment.class.getName());
+        return modIntent;
+    }
+
+    @Override
+    protected boolean isValidFragment(String fragmentName) {
+        return EncryptionInterstitialFragment.class.getName().equals(fragmentName);
+    }
+
+    public static Intent createStartIntent(Context ctx, int quality) {
+        return new Intent(ctx, EncryptionInterstitial.class)
+                .putExtra(EXTRA_PREFS_SHOW_BUTTON_BAR, true)
+                .putExtra(EXTRA_PREFS_SET_BACK_TEXT, (String) null)
+                .putExtra(EXTRA_PREFS_SET_NEXT_TEXT, ctx.getString(
+                        R.string.encryption_continue_button))
+                .putExtra(EXTRA_PASSWORD_QUALITY, quality)
+                .putExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID, R.string.encryption_interstitial_header);
+    }
+
+    public static class EncryptionInterstitialFragment extends SettingsPreferenceFragment
+            implements View.OnClickListener {
+
+        private RadioButton mRequirePasswordToDecryptButton;
+        private RadioButton mDontRequirePasswordToDecryptButton;
+        private TextView mEncryptionMessage;
+
+        @Override
+        public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                Bundle savedInstanceState) {
+            final int layoutId = R.layout.encryption_interstitial;
+            View view = inflater.inflate(layoutId, container, false);
+            mRequirePasswordToDecryptButton =
+                    (RadioButton) view.findViewById(R.id.encrypt_require_password);
+            mDontRequirePasswordToDecryptButton =
+                    (RadioButton) view.findViewById(R.id.encrypt_dont_require_password);
+            mEncryptionMessage =
+                    (TextView) view.findViewById(R.id.encryption_message);
+            int quality = getActivity().getIntent().getIntExtra(EXTRA_PASSWORD_QUALITY, 0);
+            final int msgId;
+            final int enableId;
+            final int disableId;
+            switch (quality) {
+                case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
+                    msgId = R.string.encryption_interstitial_message_pattern;
+                    enableId = R.string.encrypt_require_pattern;
+                    disableId = R.string.encrypt_dont_require_pattern;
+                    break;
+                case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
+                case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
+                    msgId = R.string.encryption_interstitial_message_pin;
+                    enableId = R.string.encrypt_require_pin;
+                    disableId = R.string.encrypt_dont_require_pin;
+                    break;
+                default:
+                    msgId = R.string.encryption_interstitial_message_password;
+                    enableId = R.string.encrypt_require_password;
+                    disableId = R.string.encrypt_dont_require_password;
+                    break;
+            }
+            mEncryptionMessage.setText(msgId);
+            mRequirePasswordToDecryptButton.setOnClickListener(this);
+            mRequirePasswordToDecryptButton.setText(enableId);
+            mDontRequirePasswordToDecryptButton.setOnClickListener(this);
+            mDontRequirePasswordToDecryptButton.setText(disableId);
+            return view;
+        }
+
+        @Override
+        public void onResume() {
+            super.onResume();
+            loadFromSettings();
+        }
+
+        private void loadFromSettings() {
+            final boolean required = Settings.Global.getInt(getContentResolver(),
+                    Settings.Global.REQUIRE_PASSWORD_TO_DECRYPT, 1) == 1 ? true : false;
+            mRequirePasswordToDecryptButton.setChecked(required);
+            mDontRequirePasswordToDecryptButton.setChecked(!required);
+        }
+
+        @Override
+        public void onClick(View v) {
+            final boolean required = (v == mRequirePasswordToDecryptButton);
+            Settings.Global.putInt(getContentResolver(),
+                    Settings.Global.REQUIRE_PASSWORD_TO_DECRYPT, required ? 1 : 0);
+        }
+    }
+}