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Unverified Commit affb6a34 authored by Roman Birg's avatar Roman Birg Committed by Michael Bestas
Browse files

SystemUI: add flashlight notification reminder 



CM13 port of change-id I3689ff6498b97b813ccc10dc7dca3527fc8455aa.

We now only post a notification when the user initiated the flashlight
via the QS tiles (or "V" gesture) since there is a common API for flashlight apps to hook
into (and possibly place their own notification, which we don't want to
ever double up on).

Ref: CYNGNOS-1670

Change-Id: Id532e8449932fefb216c10798aab6241f6e491ea
Signed-off-by: default avatarRoman Birg <roman@cyngn.com>
parent b4c599b9

packages/SystemUI/res/values/cm_strings.xml

+4 −0
Original line number Diff line number Diff line
@@ -28,4 +28,8 @@ 


    <!-- Content description of the superuser tile -->

    <string name="accessibility_su_active">Superuser session active</string>



    <!-- Notification which notifies user flashlight is enabled -->

    <string name="quick_settings_tile_flashlight_not_title">Flashlight is on</string>

    <string name="quick_settings_tile_flashlight_not_summary">Tap to turn off</string>

</resources>

packages/SystemUI/src/com/android/systemui/statusbar/policy/FlashlightController.java

+81 −0
Original line number Diff line number Diff line
@@ -16,7 +16,13 @@ 


package com.android.systemui.statusbar.policy;



import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.pm.PackageManager;

import android.hardware.camera2.CameraAccessException;

import android.hardware.camera2.CameraCharacteristics;
@@ -27,6 +33,8 @@ import android.os.Process; 
import android.text.TextUtils;

import android.util.Log;



import com.android.systemui.R;



import java.io.FileDescriptor;

import java.io.PrintWriter;

import java.lang.ref.WeakReference;
@@ -44,6 +52,9 @@ public class FlashlightController { 
    private static final int DISPATCH_CHANGED = 1;

    private static final int DISPATCH_AVAILABILITY_CHANGED = 2;



    private static final String ACTION_TURN_FLASHLIGHT_OFF =

            "com.android.systemui.action.TURN_FLASHLIGHT_OFF";



    private final CameraManager mCameraManager;

    private final Context mContext;

    /** Call {@link #ensureHandler()} before using */
@@ -58,6 +69,24 @@ public class FlashlightController { 
    private String mCameraId;

    private boolean mTorchAvailable;



    private Notification mNotification = null;

    private boolean mReceiverRegistered;

    private BroadcastReceiver mReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {

            if (ACTION_TURN_FLASHLIGHT_OFF.equals(intent.getAction())) {

                mHandler.post(new Runnable() {

                    @Override

                    public void run() {

                        setFlashlight(false);

                    }

                });

            } else if (Intent.ACTION_SCREEN_ON.equals(intent.getAction())) {

                setNotificationShown(true);

            }

        }

    };



    public FlashlightController(Context context) {

        mContext = context;

        mCameraManager = (CameraManager) mContext.getSystemService(Context.CAMERA_SERVICE);
@@ -100,6 +129,56 @@ public class FlashlightController { 
        }

    }



    private void setNotificationShown(boolean showNotification) {

        NotificationManager nm = (NotificationManager)

                mContext.getSystemService(Context.NOTIFICATION_SERVICE);

        if (showNotification) {

            nm.notify(R.string.quick_settings_tile_flashlight_not_title, buildNotification());

        } else {

            nm.cancel(R.string.quick_settings_tile_flashlight_not_title);

            mNotification = null;

        }

    }



    private void setListenForScreenOff(boolean listen) {

        if (listen && !mReceiverRegistered) {

            IntentFilter filter = new IntentFilter();

            filter.addAction(ACTION_TURN_FLASHLIGHT_OFF);

            filter.addAction(Intent.ACTION_SCREEN_ON);

            mContext.registerReceiver(mReceiver, filter);

            mReceiverRegistered = true;

        } else if (!listen) {

            if (mReceiverRegistered) {

                mContext.unregisterReceiver(mReceiver);

                mReceiverRegistered = false;

            }

            setNotificationShown(false);

        }

    }



    private Notification buildNotification() {

        if (mNotification == null) {

            Intent fireMe = new Intent(ACTION_TURN_FLASHLIGHT_OFF);

            fireMe.addFlags(Intent.FLAG_FROM_BACKGROUND);

            fireMe.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);

            fireMe.setPackage(mContext.getPackageName());



            final PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, fireMe, 0);

            mNotification = new Notification.Builder(mContext)

                    .setContentTitle(

                            mContext.getString(R.string.quick_settings_tile_flashlight_not_title))

                    .setContentText(

                            mContext.getString(R.string.quick_settings_tile_flashlight_not_summary))

                    .setAutoCancel(false)

                    .setOngoing(true)

                    .setVisibility(Notification.VISIBILITY_PUBLIC)

                    .setSmallIcon(R.drawable.ic_signal_flashlight_disable)

                    .setContentIntent(pendingIntent)

                    .build();

        }

        return mNotification;

    }



    public boolean hasFlashlight() {

        return mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);

    }
@@ -202,6 +281,7 @@ public class FlashlightController { 
        public void onTorchModeUnavailable(String cameraId) {

            if (TextUtils.equals(cameraId, mCameraId)) {

                setCameraAvailable(false);

                setListenForScreenOff(false);

            }

        }
@@ -210,6 +290,7 @@ public class FlashlightController { 
            if (TextUtils.equals(cameraId, mCameraId)) {

                setCameraAvailable(true);

                setTorchMode(enabled);

                setListenForScreenOff(enabled);

            }

        }