Add a new NFC developer setting option for NFCSNOOP

Add a new developer setting option to enable full NFCSNOOP log.

Bug: 204397062
Test: manual
Change-Id: I3fd34500e5e7093c9d77ff737987a35f6866814e

src/com/android/settings/development/NfcSnoopLogPreferenceController.java

@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2022 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.development;
+
+import android.content.Context;
+import android.os.SystemProperties;
+import android.util.Log;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Preference controller to control NFCSNOOP data payload
+ */
+public class NfcSnoopLogPreferenceController extends
+        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener {
+    private static final String TAG = "NfcSnoopLog";
+    private static final String NFC_NFCSNOOP_LOG_KEY =
+            "nfc_snoop_log";
+    @VisibleForTesting
+    static final String NFC_NFCSNOOP_LOG_MODE_PROPERTY =
+            "persist.nfc.nfcsnooplogmode";
+    @VisibleForTesting
+    static final String NFCSNOOP_MODE_FILTERED = "filtered";
+    @VisibleForTesting
+    static final String NFCSNOOP_MODE_FULL = "full";
+
+    @VisibleForTesting
+    boolean mChanged = false;
+
+    private final DevelopmentSettingsDashboardFragment mFragment;
+
+    public NfcSnoopLogPreferenceController(Context context,
+            DevelopmentSettingsDashboardFragment fragment) {
+        super(context);
+        mFragment = fragment;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return NFC_NFCSNOOP_LOG_KEY;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        NfcRebootDialog.show(mFragment);
+        mChanged = true;
+        return false;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        try {
+            final String currentValue = SystemProperties.get(NFC_NFCSNOOP_LOG_MODE_PROPERTY);
+            ((SwitchPreference) mPreference).setChecked(currentValue.equals(NFCSNOOP_MODE_FULL));
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to get nfc system property: " + e.getMessage());
+        }
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        try {
+            SystemProperties.set(NFC_NFCSNOOP_LOG_MODE_PROPERTY, NFCSNOOP_MODE_FILTERED);
+            ((SwitchPreference) mPreference).setChecked(false);
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to set nfc system property: " + e.getMessage());
+        }
+    }
+
+    /**
+     * Check whether the current setting is the default value or not.
+     */
+    public boolean isDefaultValue() {
+        try {
+            final String currentValue = SystemProperties.get(NFC_NFCSNOOP_LOG_MODE_PROPERTY);
+            return !currentValue.equals(NFCSNOOP_MODE_FULL);
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to get nfc system property: " + e.getMessage());
+        }
+        return true;
+    }
+
+    /**
+     * Called when the NfcRebootDialog confirm is clicked.
+     */
+    public void onNfcRebootDialogConfirmed() {
+        if (!mChanged) {
+            return;
+        }
+        try {
+            final String currentValue =
+                    SystemProperties.get(NFC_NFCSNOOP_LOG_MODE_PROPERTY, NFCSNOOP_MODE_FILTERED);
+            if (currentValue.equals(NFCSNOOP_MODE_FILTERED)) {
+                SystemProperties.set(NFC_NFCSNOOP_LOG_MODE_PROPERTY, NFCSNOOP_MODE_FULL);
+            } else {
+                SystemProperties.set(NFC_NFCSNOOP_LOG_MODE_PROPERTY, NFCSNOOP_MODE_FILTERED);
+            }
+        } catch (RuntimeException e) {
+            Log.e(TAG, "Fail to set nfc system property: " + e.getMessage());
+        }
+
+    }
+
+    /**
+     * Called when the NfcRebootDialog cancel is clicked.
+     */
+    public void onNfcRebootDialogCanceled() {
+        mChanged = false;
+    }
+}