Refactor ConfigureWifiSettings for better testing

Fix: 34205150
Test: make -j40 RunSettingsRoboTests
Change-Id: I7a8a0c89c087365fb50f3a9edd2cf64b2dda647c

src/com/android/settings/wifi/WifiSleepPolicyPreferenceController.java

@@ -0,0 +1,104 @@
+/*
+ * 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.wifi;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.support.v7.preference.ListPreference;
+import android.support.v7.preference.Preference;
+import android.util.Log;
+import android.widget.Toast;
+
+import com.android.settings.R;
+import com.android.settings.Utils;
+import com.android.settings.core.PreferenceController;
+
+import static com.android.internal.os.MemoryPowerCalculator.TAG;
+
+public class WifiSleepPolicyPreferenceController extends PreferenceController implements
+        Preference.OnPreferenceChangeListener {
+
+    private static final String KEY_SLEEP_POLICY = "sleep_policy";
+
+    public WifiSleepPolicyPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_SLEEP_POLICY;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        ListPreference sleepPolicyPref = (ListPreference) preference;
+        if (sleepPolicyPref != null) {
+            if (Utils.isWifiOnly(mContext)) {
+                sleepPolicyPref.setEntries(R.array.wifi_sleep_policy_entries_wifi_only);
+            }
+            int value = Settings.Global.getInt(mContext.getContentResolver(),
+                    Settings.Global.WIFI_SLEEP_POLICY,
+                    Settings.Global.WIFI_SLEEP_POLICY_NEVER);
+            String stringValue = String.valueOf(value);
+            sleepPolicyPref.setValue(stringValue);
+            updateSleepPolicySummary(sleepPolicyPref, stringValue);
+        }
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        try {
+            String stringValue = (String) newValue;
+            Settings.Global.putInt(mContext.getContentResolver(), Settings.Global.WIFI_SLEEP_POLICY,
+                    Integer.parseInt(stringValue));
+            updateSleepPolicySummary(preference, stringValue);
+        } catch (NumberFormatException e) {
+            Toast.makeText(mContext, R.string.wifi_setting_sleep_policy_error,
+                    Toast.LENGTH_SHORT).show();
+            return false;
+        }
+        return true;
+    }
+
+    private void updateSleepPolicySummary(Preference sleepPolicyPref, String value) {
+        if (value != null) {
+            String[] values = mContext.getResources().getStringArray(R.array
+                    .wifi_sleep_policy_values);
+            final int summaryArrayResId = Utils.isWifiOnly(mContext)
+                    ? R.array.wifi_sleep_policy_entries_wifi_only
+                    : R.array.wifi_sleep_policy_entries;
+            String[] summaries = mContext.getResources().getStringArray(summaryArrayResId);
+            for (int i = 0; i < values.length; i++) {
+                if (value.equals(values[i])) {
+                    if (i < summaries.length) {
+                        sleepPolicyPref.setSummary(summaries[i]);
+                        return;
+                    }
+                }
+            }
+        }
+
+        sleepPolicyPref.setSummary("");
+        Log.e(TAG, "Invalid sleep policy value: " + value);
+    }
+
+}