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Commit 4f1e9151 authored by Mehdi Alizadeh's avatar Mehdi Alizadeh
Browse files

Removes auto-switch from gesture nav when default home app changes 

Bug: 137197916
Test: Manual test with setting a 3P launcher as default
Change-Id: I643bacc0379d05980ce8db7198771f5d4616d203
parent b7098f9d

packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationModeController.java

+7 −145
Original line number Diff line number Diff line
@@ -32,8 +32,6 @@ import static com.android.systemui.shared.system.QuickStepContract.ACTION_ENABLE 
import static com.android.systemui.shared.system.QuickStepContract.ACTION_ENABLE_GESTURE_NAV_RESULT;

import static com.android.systemui.shared.system.QuickStepContract.EXTRA_RESULT_INTENT;



import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.app.admin.DevicePolicyManager;

import android.content.BroadcastReceiver;
@@ -42,7 +40,6 @@ import android.content.Context; 
import android.content.Intent;

import android.content.IntentFilter;

import android.content.om.IOverlayManager;

import android.content.pm.ApplicationInfo;

import android.content.pm.PackageManager;

import android.content.res.ApkAssets;

import android.os.PatternMatcher;
@@ -52,16 +49,13 @@ import android.os.UserHandle; 
import android.os.UserManager;

import android.provider.Settings;

import android.provider.Settings.Secure;

import android.text.TextUtils;

import android.util.Log;

import android.util.SparseBooleanArray;



import com.android.systemui.Dumpable;

import com.android.systemui.R;

import com.android.systemui.UiOffloadThread;

import com.android.systemui.shared.system.ActivityManagerWrapper;

import com.android.systemui.statusbar.policy.DeviceProvisionedController;

import com.android.systemui.util.NotificationChannels;



import java.io.FileDescriptor;

import java.io.PrintWriter;
@@ -80,11 +74,6 @@ public class NavigationModeController implements Dumpable { 
    private static final String TAG = NavigationModeController.class.getSimpleName();

    private static final boolean DEBUG = false;



    private static final int SYSTEM_APP_MASK =

            ApplicationInfo.FLAG_SYSTEM | ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;

    static final String SHARED_PREFERENCES_NAME = "navigation_mode_controller_preferences";

    static final String PREFS_SWITCHED_FROM_GESTURE_NAV_KEY = "switched_from_gesture_nav";



    public interface ModeChangedListener {

        void onNavigationModeChanged(int mode);

    }
@@ -100,8 +89,6 @@ public class NavigationModeController implements Dumpable { 
    private int mMode = NAV_BAR_MODE_3BUTTON;

    private ArrayList<ModeChangedListener> mListeners = new ArrayList<>();



    private String mLastDefaultLauncher;



    private BroadcastReceiver mReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {
@@ -112,18 +99,6 @@ public class NavigationModeController implements Dumpable { 
                    }

                    updateCurrentInteractionMode(true /* notify */);

                    break;

                case ACTION_PREFERRED_ACTIVITY_CHANGED:

                    if (DEBUG) {

                        Log.d(TAG, "ACTION_PREFERRED_ACTIVITY_CHANGED");

                    }

                    final String launcher = getDefaultLauncherPackageName(mCurrentUserContext);

                    // Check if it is a default launcher change

                    if (!TextUtils.equals(mLastDefaultLauncher, launcher)) {

                        switchFromGestureNavModeIfNotSupportedByDefaultLauncher();

                        showNotificationIfDefaultLauncherSupportsGestureNav();

                        mLastDefaultLauncher = launcher;

                    }

                    break;

            }

        }

    };
@@ -159,7 +134,6 @@ public class NavigationModeController implements Dumpable { 


                    // Update the nav mode for the current user

                    updateCurrentInteractionMode(true /* notify */);

                    switchFromGestureNavModeIfNotSupportedByDefaultLauncher();



                    // When switching users, defer enabling the gestural nav overlay until the user

                    // is all set up
@@ -190,11 +164,7 @@ public class NavigationModeController implements Dumpable { 
        mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, preferredActivityFilter, null,

                null);



        // We are only interested in launcher changes, so keeping track of the current default.

        mLastDefaultLauncher = getDefaultLauncherPackageName(mContext);



        updateCurrentInteractionMode(false /* notify */);

        switchFromGestureNavModeIfNotSupportedByDefaultLauncher();



        // Check if we need to defer enabling gestural nav

        deferGesturalNavOverlayIfNecessary();
@@ -216,21 +186,13 @@ public class NavigationModeController implements Dumpable { 
            // Already in gesture mode

            return true;

        }

        final Boolean supported = isGestureNavSupportedByDefaultLauncher(mCurrentUserContext);

        if (supported == null || supported) {



        Log.d(TAG, "Switching system navigation to full-gesture mode:"

                    + " defaultLauncher="

                    + getDefaultLauncherPackageName(mCurrentUserContext)

                + " contextUser="

                + mCurrentUserContext.getUserId());



        setModeOverlay(NAV_BAR_MODE_GESTURAL_OVERLAY, USER_CURRENT);

        return true;

        } else {

            Log.e(TAG, "Gesture nav is not supported for defaultLauncher="

                    + getDefaultLauncherPackageName(mCurrentUserContext));

            return false;

        }

    }



    private boolean enableGestureNav(Intent intent) {
@@ -430,100 +392,6 @@ public class NavigationModeController implements Dumpable { 
        });

    }



    private void switchFromGestureNavModeIfNotSupportedByDefaultLauncher() {

        if (getCurrentInteractionMode(mCurrentUserContext) != NAV_BAR_MODE_GESTURAL) {

            return;

        }

        final Boolean supported = isGestureNavSupportedByDefaultLauncher(mCurrentUserContext);

        if (supported == null || supported) {

            return;

        }



        Log.d(TAG, "Switching system navigation to 3-button mode:"

                + " defaultLauncher=" + getDefaultLauncherPackageName(mCurrentUserContext)

                + " contextUser=" + mCurrentUserContext.getUserId());



        setModeOverlay(NAV_BAR_MODE_3BUTTON_OVERLAY, USER_CURRENT);

        showNotification(mCurrentUserContext, R.string.notification_content_system_nav_changed);

        mCurrentUserContext.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE)

                .edit().putBoolean(PREFS_SWITCHED_FROM_GESTURE_NAV_KEY, true).apply();

    }



    private void showNotificationIfDefaultLauncherSupportsGestureNav() {

        boolean previouslySwitchedFromGestureNav = mCurrentUserContext

                .getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE)

                .getBoolean(PREFS_SWITCHED_FROM_GESTURE_NAV_KEY, false);

        if (!previouslySwitchedFromGestureNav) {

            return;

        }

        if (getCurrentInteractionMode(mCurrentUserContext) == NAV_BAR_MODE_GESTURAL) {

            return;

        }

        final Boolean supported = isGestureNavSupportedByDefaultLauncher(mCurrentUserContext);

        if (supported == null || !supported) {

            return;

        }



        showNotification(mCurrentUserContext, R.string.notification_content_gesture_nav_available);

        mCurrentUserContext.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE)

                .edit().putBoolean(PREFS_SWITCHED_FROM_GESTURE_NAV_KEY, false).apply();

    }



    /**

     * Returns null if there is no default launcher set for the current user. Returns true if the

     * current default launcher supports Gesture Navigation. Returns false otherwise.

     */

    private Boolean isGestureNavSupportedByDefaultLauncher(Context context) {

        final String defaultLauncherPackageName = getDefaultLauncherPackageName(context);

        if (DEBUG) {

            Log.d(TAG, "isGestureNavSupportedByDefaultLauncher:"

                    + " defaultLauncher=" + defaultLauncherPackageName

                    + " contextUser=" + context.getUserId());

        }

        if (defaultLauncherPackageName == null) {

            return null;

        }

        if (isSystemApp(context, defaultLauncherPackageName)) {

            return true;

        }

        return false;

    }



    private String getDefaultLauncherPackageName(Context context) {

        final ComponentName cn = context.getPackageManager().getHomeActivities(new ArrayList<>());

        if (cn == null) {

            return null;

        }

        return cn.getPackageName();

    }



    /** Returns true if the app for the given package name is a system app for this device */

    private boolean isSystemApp(Context context, String packageName) {

        try {

            ApplicationInfo ai = context.getPackageManager().getApplicationInfo(packageName,

                    PackageManager.GET_META_DATA);

            return ai != null && ((ai.flags & SYSTEM_APP_MASK) != 0);

        } catch (PackageManager.NameNotFoundException e) {

            return false;

        }

    }



    private void showNotification(Context context, int resId) {

        final CharSequence message = context.getResources().getString(resId);

        if (DEBUG) {

            Log.d(TAG, "showNotification: message=" + message);

        }



        final Notification.Builder builder =

                new Notification.Builder(mContext, NotificationChannels.ALERTS)

                        .setContentText(message)

                        .setStyle(new Notification.BigTextStyle())

                        .setSmallIcon(R.drawable.ic_info)

                        .setAutoCancel(true)

                        .setContentIntent(PendingIntent.getActivity(context, 0, new Intent(), 0));

        context.getSystemService(NotificationManager.class).notify(TAG, 0, builder.build());

    }



    @Override

    public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {

        pw.println("NavigationModeController:");
@@ -536,12 +404,6 @@ public class NavigationModeController implements Dumpable { 
        }

        pw.println("  defaultOverlays=" + defaultOverlays);

        dumpAssetPaths(mCurrentUserContext);



        pw.println("  defaultLauncher=" + mLastDefaultLauncher);

        boolean previouslySwitchedFromGestureNav = mCurrentUserContext

                .getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE)

                .getBoolean(PREFS_SWITCHED_FROM_GESTURE_NAV_KEY, false);

        pw.println("  previouslySwitchedFromGestureNav=" + previouslySwitchedFromGestureNav);

    }



    private void dumpAssetPaths(Context context) {