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Commit 95f03c41 authored by Jason Monk's avatar Jason Monk
Browse files

Some Tethering code to SettingsLib and use in QS

Change-Id: I640c84d4e42d2f1955db8cd6e473b6acac64dd39
parent 5bb72554
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+106 −0
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/*
 * 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.settingslib;

import android.app.ActivityManager;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.res.Resources;
import android.net.ConnectivityManager;
import android.net.wifi.WifiManager;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.provider.Settings;

public class TetherUtil {

    // Types of tethering.
    public static final int TETHERING_INVALID   = -1;
    public static final int TETHERING_WIFI      = 0;
    public static final int TETHERING_USB       = 1;
    public static final int TETHERING_BLUETOOTH = 2;

    // Extras used for communicating with the TetherService.
    public static final String EXTRA_ADD_TETHER_TYPE = "extraAddTetherType";
    public static final String EXTRA_REM_TETHER_TYPE = "extraRemTetherType";
    public static final String EXTRA_SET_ALARM = "extraSetAlarm";
    /**
     * Tells the service to run a provision check now.
     */
    public static final String EXTRA_RUN_PROVISION = "extraRunProvision";
    /**
     * Enables wifi tethering if the provision check is successful. Used by
     * QS to enable tethering.
     */
    public static final String EXTRA_ENABLE_WIFI_TETHER = "extraEnableWifiTether";

    public static ComponentName TETHER_SERVICE = ComponentName.unflattenFromString(Resources
            .getSystem().getString(com.android.internal.R.string.config_wifi_tether_enable));

    public static boolean setWifiTethering(boolean enable, Context context) {
        final WifiManager wifiManager =
                (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        final ContentResolver cr = context.getContentResolver();
        /**
         * Disable Wifi if enabling tethering
         */
        int wifiState = wifiManager.getWifiState();
        if (enable && ((wifiState == WifiManager.WIFI_STATE_ENABLING) ||
                    (wifiState == WifiManager.WIFI_STATE_ENABLED))) {
            wifiManager.setWifiEnabled(false);
            Settings.Global.putInt(cr, Settings.Global.WIFI_SAVED_STATE, 1);
        }

        boolean success = wifiManager.setWifiApEnabled(null, enable);
        /**
         *  If needed, restore Wifi on tether disable
         */
        if (!enable) {
            int wifiSavedState = Settings.Global.getInt(cr, Settings.Global.WIFI_SAVED_STATE, 0);
            if (wifiSavedState == 1) {
                wifiManager.setWifiEnabled(true);
                Settings.Global.putInt(cr, Settings.Global.WIFI_SAVED_STATE, 0);
            }
        }
        return success;
    }

    public static boolean isWifiTetherEnabled(Context context) {
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        return wifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_ENABLED;
    }

    public static boolean isProvisioningNeeded(Context context) {
        // Keep in sync with other usage of config_mobile_hotspot_provision_app.
        // ConnectivityManager#enforceTetherChangePermission
        String[] provisionApp = context.getResources().getStringArray(
                com.android.internal.R.array.config_mobile_hotspot_provision_app);
        if (SystemProperties.getBoolean("net.tethering.noprovisioning", false)
                || provisionApp == null) {
            return false;
        }
        return (provisionApp.length == 2);
    }

    public static boolean isTetheringSupported(Context context) {
        final ConnectivityManager cm =
                (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        final boolean isSecondaryUser = ActivityManager.getCurrentUser() != UserHandle.USER_OWNER;
        return !isSecondaryUser && cm.isTetheringSupported();
    }

}
+0 −1
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@@ -22,7 +22,6 @@ public interface HotspotController {
    boolean isHotspotEnabled();
    boolean isHotspotSupported();
    void setHotspotEnabled(boolean enabled);
    boolean isProvisioningNeeded();

    public interface Callback {
        void onHotspotChanged(boolean enabled);
+12 −56
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@@ -16,45 +16,38 @@

package com.android.systemui.statusbar.policy;

import android.app.ActivityManager;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.wifi.WifiManager;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.Log;

import com.android.settingslib.TetherUtil;

import java.util.ArrayList;

public class HotspotControllerImpl implements HotspotController {

    private static final String TAG = "HotspotController";
    private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
    // Keep these in sync with Settings TetherService.java
    public static final String EXTRA_ADD_TETHER_TYPE = "extraAddTetherType";
    public static final String EXTRA_SET_ALARM = "extraSetAlarm";
    public static final String EXTRA_RUN_PROVISION = "extraRunProvision";
    public static final String EXTRA_ENABLE_WIFI_TETHER = "extraEnableWifiTether";
    // Keep this in sync with Settings TetherSettings.java
    public static final int WIFI_TETHERING = 0;
    private static final Intent TETHER_SERVICE_INTENT = new Intent()
            .putExtra(TetherUtil.EXTRA_ADD_TETHER_TYPE, TetherUtil.TETHERING_WIFI)
            .putExtra(TetherUtil.EXTRA_SET_ALARM, true)
            .putExtra(TetherUtil.EXTRA_RUN_PROVISION, true)
            .putExtra(TetherUtil.EXTRA_ENABLE_WIFI_TETHER, true)
            .setComponent(TetherUtil.TETHER_SERVICE);

    private final ArrayList<Callback> mCallbacks = new ArrayList<Callback>();
    private final Receiver mReceiver = new Receiver();
    private final Context mContext;
    private final WifiManager mWifiManager;
    private final ConnectivityManager mConnectivityManager;

    public HotspotControllerImpl(Context context) {
        mContext = context;
        mWifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
        mConnectivityManager = (ConnectivityManager)
                mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
    }

    public void addCallback(Callback callback) {
@@ -78,54 +71,17 @@ public class HotspotControllerImpl implements HotspotController {

    @Override
    public boolean isHotspotSupported() {
        final boolean isSecondaryUser = ActivityManager.getCurrentUser() != UserHandle.USER_OWNER;
        return !isSecondaryUser && mConnectivityManager.isTetheringSupported();
    }

    @Override
    public boolean isProvisioningNeeded() {
        // Keep in sync with other usage of config_mobile_hotspot_provision_app.
        // TetherSettings#isProvisioningNeeded and
        // ConnectivityManager#enforceTetherChangePermission
        String[] provisionApp = mContext.getResources().getStringArray(
                com.android.internal.R.array.config_mobile_hotspot_provision_app);
        if (SystemProperties.getBoolean("net.tethering.noprovisioning", false)
                || provisionApp == null) {
            return false;
        }
        return (provisionApp.length == 2);
        return TetherUtil.isTetheringSupported(mContext);
    }

    @Override
    public void setHotspotEnabled(boolean enabled) {
        final ContentResolver cr = mContext.getContentResolver();
        // Call provisioning app which is called when enabling Tethering from Settings
        if (enabled) {
            if (isProvisioningNeeded()) {
                String tetherEnable = mContext.getResources().getString(
                        com.android.internal.R.string.config_wifi_tether_enable);
                Intent intent = new Intent();
                intent.putExtra(EXTRA_ADD_TETHER_TYPE, WIFI_TETHERING);
                intent.putExtra(EXTRA_SET_ALARM, true);
                intent.putExtra(EXTRA_RUN_PROVISION, true);
                intent.putExtra(EXTRA_ENABLE_WIFI_TETHER, true);
                intent.setComponent(ComponentName.unflattenFromString(tetherEnable));
                mContext.startServiceAsUser(intent, UserHandle.CURRENT);
        if (enabled && TetherUtil.isProvisioningNeeded(mContext)) {
            mContext.startServiceAsUser(TETHER_SERVICE_INTENT, UserHandle.CURRENT);
        } else {
                int wifiState = mWifiManager.getWifiState();
                if ((wifiState == WifiManager.WIFI_STATE_ENABLING) ||
                        (wifiState == WifiManager.WIFI_STATE_ENABLED)) {
                    mWifiManager.setWifiEnabled(false);
                    Settings.Global.putInt(cr, Settings.Global.WIFI_SAVED_STATE, 1);
                }
                mWifiManager.setWifiApEnabled(null, true);
            }
        } else {
            mWifiManager.setWifiApEnabled(null, false);
            if (Settings.Global.getInt(cr, Settings.Global.WIFI_SAVED_STATE, 0) == 1) {
                mWifiManager.setWifiEnabled(true);
                Settings.Global.putInt(cr, Settings.Global.WIFI_SAVED_STATE, 0);
            }
            TetherUtil.setWifiTethering(enabled, mContext);
        }
    }