[adb-wireless] Add Wireless Debugging Switch in Developer options.

Bug: 111434128
Bug: 119492574

Test: make RunSettingsRoboTests ROBOTEST_FILTER=WirelessDebugging
Change-Id: I188badb43035172642cf235bb27e56d3a1dea169

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

@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2020 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.ContentResolver;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.debug.IAdbManager;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.provider.Settings;
+import android.util.Log;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.widget.MasterSwitchPreference;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnPause;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * This controls the master switch controller in the developer options page for
+ * "Wireless debugging".
+ */
+public class WirelessDebuggingPreferenceController extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin,
+        LifecycleObserver, OnResume, OnPause {
+    private static final String TAG = "WirelessDebugPrefCtrl";
+    private final IAdbManager mAdbManager;
+    private final ContentResolver mContentResolver;
+    private final ContentObserver mSettingsObserver;
+    private final Handler mHandler = new Handler(Looper.getMainLooper());
+
+    public static final String KEY_TOGGLE_ADB_WIRELESS = "toggle_adb_wireless";
+
+    public WirelessDebuggingPreferenceController(Context context, Lifecycle lifecycle) {
+        super(context);
+
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+        mAdbManager = IAdbManager.Stub.asInterface(ServiceManager.getService(Context.ADB_SERVICE));
+        mSettingsObserver = new ContentObserver(mHandler) {
+            @Override
+            public void onChange(boolean selfChange, Uri uri) {
+                updateState(mPreference);
+            }
+        };
+        mContentResolver = context.getContentResolver();
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        try {
+            return mAdbManager.isAdbWifiSupported();
+        } catch (RemoteException e) {
+            Log.e(TAG, "Unable to check if adb wifi is supported.", e);
+        }
+
+        return false;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_TOGGLE_ADB_WIRELESS;
+    }
+
+    /**
+     * Called when developer options is enabled and the preference is available
+     */
+    @Override
+    protected void onDeveloperOptionsSwitchEnabled() {
+        super.onDeveloperOptionsSwitchEnabled();
+        mPreference.setEnabled(true);
+    }
+
+    /**
+     * Called when developer options is disabled and the preference is available
+     */
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        mPreference.setEnabled(false);
+        Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.ADB_WIFI_ENABLED,
+                AdbPreferenceController.ADB_SETTING_OFF);
+    }
+
+    @Override
+    public void onResume() {
+        mContentResolver.registerContentObserver(
+                Settings.Global.getUriFor(Settings.Global.ADB_WIFI_ENABLED), false,
+                mSettingsObserver);
+    }
+
+    @Override
+    public void onPause() {
+        mContentResolver.unregisterContentObserver(mSettingsObserver);
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        boolean enabled = Settings.Global.getInt(mContentResolver,
+                Settings.Global.ADB_WIFI_ENABLED, AdbPreferenceController.ADB_SETTING_OFF)
+                    != AdbPreferenceController.ADB_SETTING_OFF;
+        ((MasterSwitchPreference) preference).setChecked(enabled);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean enabled = (Boolean) newValue;
+        Settings.Global.putInt(mContext.getContentResolver(),
+                Settings.Global.ADB_WIFI_ENABLED,
+                enabled ? AdbPreferenceController.ADB_SETTING_ON
+                : AdbPreferenceController.ADB_SETTING_OFF);
+        return true;
+    }
+}