java/com/android/incallui/ProximitySensor.java - LeafOS-Project/android_packages_apps_Dialer - Gitiles

 /*
  * Copyright (C) 2013 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.incallui;

 import android.content.Context;
 import android.hardware.display.DisplayManager;
 import android.hardware.display.DisplayManager.DisplayListener;
 import android.os.PowerManager;
 import android.os.Trace;
 import android.support.annotation.NonNull;
 import android.telecom.CallAudioState;
 import android.view.Display;
 import com.android.dialer.common.LogUtil;
 import com.android.incallui.InCallPresenter.InCallState;
 import com.android.incallui.InCallPresenter.InCallStateListener;
 import com.android.incallui.audiomode.AudioModeProvider;
 import com.android.incallui.audiomode.AudioModeProvider.AudioModeListener;
 import com.android.incallui.call.CallList;
 import com.android.incallui.call.DialerCall;

 /**
  * Class manages the proximity sensor for the in-call UI. We enable the proximity sensor while the
  * user in a phone call. The Proximity sensor turns off the touchscreen and display when the user is
  * close to the screen to prevent user's cheek from causing touch events. The class requires special
  * knowledge of the activity and device state to know when the proximity sensor should be enabled
  * and disabled. Most of that state is fed into this class through public methods.
  */
 public class ProximitySensor
     implements AccelerometerListener.OrientationListener, InCallStateListener, AudioModeListener {

   private static final String TAG = ProximitySensor.class.getSimpleName();

   private final PowerManager powerManager;
   private final PowerManager.WakeLock proximityWakeLock;
   private final AudioModeProvider audioModeProvider;
   private final AccelerometerListener accelerometerListener;
   private final ProximityDisplayListener displayListener;
   private int orientation = AccelerometerListener.ORIENTATION_UNKNOWN;
   private boolean uiShowing = false;
   private boolean isPhoneOffhook = false;
   private boolean dialpadVisible;
   private boolean isAttemptingVideoCall;
   private boolean isVideoCall;
   private boolean isRttCall;

   public ProximitySensor(
       @NonNull Context context,
       @NonNull AudioModeProvider audioModeProvider,
       @NonNull AccelerometerListener accelerometerListener) {
     Trace.beginSection("ProximitySensor.Constructor");
     powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
     if (powerManager.isWakeLockLevelSupported(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK)) {
       proximityWakeLock =
           powerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, TAG);
     } else {
       LogUtil.i("ProximitySensor.constructor", "Device does not support proximity wake lock.");
       proximityWakeLock = null;
     }
     this.accelerometerListener = accelerometerListener;
     this.accelerometerListener.setListener(this);

     displayListener =
         new ProximityDisplayListener(
             (DisplayManager) context.getSystemService(Context.DISPLAY_SERVICE));
     displayListener.register();

     this.audioModeProvider = audioModeProvider;
     this.audioModeProvider.addListener(this);
     Trace.endSection();
   }

   public void tearDown() {
     audioModeProvider.removeListener(this);

     accelerometerListener.enable(false);
     displayListener.unregister();

     turnOffProximitySensor(true);
   }

   /** Called to identify when the device is laid down flat. */
   @Override
   public void orientationChanged(int orientation) {
     this.orientation = orientation;
     updateProximitySensorMode();
   }

   /** Called to keep track of the overall UI state. */
   @Override
   public void onStateChange(InCallState oldState, InCallState newState, CallList callList) {
     // We ignore incoming state because we do not want to enable proximity
     // sensor during incoming call screen. We check hasLiveCall() because a disconnected call
     // can also put the in-call screen in the INCALL state.
     boolean hasOngoingCall = InCallState.INCALL == newState && callList.hasLiveCall();
     boolean isOffhook =
         InCallState.PENDING_OUTGOING == newState
             || InCallState.OUTGOING == newState
             || hasOngoingCall;

     DialerCall activeCall = callList.getActiveCall();
     boolean isVideoCall = activeCall != null && activeCall.isVideoCall();
     boolean isRttCall = activeCall != null && activeCall.isActiveRttCall();

     if (isOffhook != isPhoneOffhook
         || this.isVideoCall != isVideoCall
         || this.isRttCall != isRttCall) {
       isPhoneOffhook = isOffhook;
       this.isVideoCall = isVideoCall;
       this.isRttCall = isRttCall;

       orientation = AccelerometerListener.ORIENTATION_UNKNOWN;
       accelerometerListener.enable(isPhoneOffhook);

       updateProximitySensorMode();
     }
   }

   @Override
   public void onAudioStateChanged(CallAudioState audioState) {
     updateProximitySensorMode();
   }

   public void onDialpadVisible(boolean visible) {
     dialpadVisible = visible;
     updateProximitySensorMode();
   }

   public void setIsAttemptingVideoCall(boolean isAttemptingVideoCall) {
     LogUtil.i(
         "ProximitySensor.setIsAttemptingVideoCall",
         "isAttemptingVideoCall: %b",
         isAttemptingVideoCall);
     this.isAttemptingVideoCall = isAttemptingVideoCall;
     updateProximitySensorMode();
   }
   /** Used to save when the UI goes in and out of the foreground. */
   public void onInCallShowing(boolean showing) {
     if (showing) {
       uiShowing = true;

       // We only consider the UI not showing for instances where another app took the foreground.
       // If we stopped showing because the screen is off, we still consider that showing.
     } else if (powerManager.isScreenOn()) {
       uiShowing = false;
     }
     updateProximitySensorMode();
   }

   void onDisplayStateChanged(boolean isDisplayOn) {
     LogUtil.i("ProximitySensor.onDisplayStateChanged", "isDisplayOn: %b", isDisplayOn);
     accelerometerListener.enable(isDisplayOn);
   }

   /**
    * TODO: There is no way to determine if a screen is off due to proximity or if it is legitimately
    * off, but if ever we can do that in the future, it would be useful here. Until then, this
    * function will simply return true of the screen is off. TODO: Investigate whether this can be
    * replaced with the ProximityDisplayListener.
    */
   public boolean isScreenReallyOff() {
     return !powerManager.isScreenOn();
   }

   private void turnOnProximitySensor() {
     if (proximityWakeLock != null) {
       if (!proximityWakeLock.isHeld()) {
         LogUtil.i("ProximitySensor.turnOnProximitySensor", "acquiring wake lock");
         proximityWakeLock.acquire();
       } else {
         LogUtil.i("ProximitySensor.turnOnProximitySensor", "wake lock already acquired");
       }
     }
   }

   private void turnOffProximitySensor(boolean screenOnImmediately) {
     if (proximityWakeLock != null) {
       if (proximityWakeLock.isHeld()) {
         LogUtil.i("ProximitySensor.turnOffProximitySensor", "releasing wake lock");
         int flags = (screenOnImmediately ? 0 : PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
         proximityWakeLock.release(flags);
       } else {
         LogUtil.i("ProximitySensor.turnOffProximitySensor", "wake lock already released");
       }
     }
   }

   /**
    * Updates the wake lock used to control proximity sensor behavior, based on the current state of
    * the phone.
    *
    * <p>On devices that have a proximity sensor, to avoid false touches during a call, we hold a
    * PROXIMITY_SCREEN_OFF_WAKE_LOCK wake lock whenever the phone is off hook. (When held, that wake
    * lock causes the screen to turn off automatically when the sensor detects an object close to the
    * screen.)
    *
    * <p>This method is a no-op for devices that don't have a proximity sensor.
    *
    * <p>Proximity wake lock will be released if any of the following conditions are true: the audio
    * is routed through bluetooth, a wired headset, or the speaker; the user requested, received a
    * request for, or is in a video call; or the phone is horizontal while in a call.
    */
   private synchronized void updateProximitySensorMode() {
     Trace.beginSection("ProximitySensor.updateProximitySensorMode");
     final int audioRoute = audioModeProvider.getAudioState().getRoute();

     boolean screenOnImmediately =
         (CallAudioState.ROUTE_WIRED_HEADSET == audioRoute
             || CallAudioState.ROUTE_SPEAKER == audioRoute
             || CallAudioState.ROUTE_BLUETOOTH == audioRoute
             || isAttemptingVideoCall
             || isVideoCall
             || isRttCall);

     // We do not keep the screen off when the user is outside in-call screen and we are
     // horizontal, but we do not force it on when we become horizontal until the
     // proximity sensor goes negative.
     final boolean horizontal = (orientation == AccelerometerListener.ORIENTATION_HORIZONTAL);
     screenOnImmediately |= !uiShowing && horizontal;

     // We do not keep the screen off when dialpad is visible, we are horizontal, and
     // the in-call screen is being shown.
     // At that moment we're pretty sure users want to use it, instead of letting the
     // proximity sensor turn off the screen by their hands.
     screenOnImmediately |= dialpadVisible && horizontal;

     LogUtil.i(
         "ProximitySensor.updateProximitySensorMode",
         "screenOnImmediately: %b, dialPadVisible: %b, "
             + "offHook: %b, horizontal: %b, uiShowing: %b, audioRoute: %s",
         screenOnImmediately,
         dialpadVisible,
         isPhoneOffhook,
         orientation == AccelerometerListener.ORIENTATION_HORIZONTAL,
         uiShowing,
         CallAudioState.audioRouteToString(audioRoute));

     if (isPhoneOffhook && !screenOnImmediately) {
       LogUtil.v("ProximitySensor.updateProximitySensorMode", "turning on proximity sensor");
       // Phone is in use!  Arrange for the screen to turn off
       // automatically when the sensor detects a close object.
       turnOnProximitySensor();
     } else {
       LogUtil.v("ProximitySensor.updateProximitySensorMode", "turning off proximity sensor");
       // Phone is either idle, or ringing.  We don't want any special proximity sensor
       // behavior in either case.
       turnOffProximitySensor(screenOnImmediately);
     }
     Trace.endSection();
   }

   /**
    * Implementation of a {@link DisplayListener} that maintains a binary state: Screen on vs screen
    * off. Used by the proximity sensor manager to decide whether or not it needs to listen to
    * accelerometer events.
    */
   public class ProximityDisplayListener implements DisplayListener {

     private DisplayManager displayManager;
     private boolean isDisplayOn = true;

     ProximityDisplayListener(DisplayManager displayManager) {
       this.displayManager = displayManager;
     }

     void register() {
       displayManager.registerDisplayListener(this, null);
     }

     void unregister() {
       displayManager.unregisterDisplayListener(this);
     }

     @Override
     public void onDisplayRemoved(int displayId) {}

     @Override
     public void onDisplayChanged(int displayId) {
       if (displayId == Display.DEFAULT_DISPLAY) {
         final Display display = displayManager.getDisplay(displayId);

         final boolean isDisplayOn = display.getState() != Display.STATE_OFF;
         // For call purposes, we assume that as long as the screen is not truly off, it is
         // considered on, even if it is in an unknown or low power idle state.
         if (isDisplayOn != this.isDisplayOn) {
           this.isDisplayOn = isDisplayOn;
           onDisplayStateChanged(this.isDisplayOn);
         }
       }
     }

     @Override
     public void onDisplayAdded(int displayId) {}
   }
 }
	/*
	* Copyright (C) 2013 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.incallui;

	import android.content.Context;
	import android.hardware.display.DisplayManager;
	import android.hardware.display.DisplayManager.DisplayListener;
	import android.os.PowerManager;
	import android.os.Trace;
	import android.support.annotation.NonNull;
	import android.telecom.CallAudioState;
	import android.view.Display;
	import com.android.dialer.common.LogUtil;
	import com.android.incallui.InCallPresenter.InCallState;
	import com.android.incallui.InCallPresenter.InCallStateListener;
	import com.android.incallui.audiomode.AudioModeProvider;
	import com.android.incallui.audiomode.AudioModeProvider.AudioModeListener;
	import com.android.incallui.call.CallList;
	import com.android.incallui.call.DialerCall;

	/**
	* Class manages the proximity sensor for the in-call UI. We enable the proximity sensor while the
	* user in a phone call. The Proximity sensor turns off the touchscreen and display when the user is
	* close to the screen to prevent user's cheek from causing touch events. The class requires special
	* knowledge of the activity and device state to know when the proximity sensor should be enabled
	* and disabled. Most of that state is fed into this class through public methods.
	*/
	public class ProximitySensor
	implements AccelerometerListener.OrientationListener, InCallStateListener, AudioModeListener {

	private static final String TAG = ProximitySensor.class.getSimpleName();

	private final PowerManager powerManager;
	private final PowerManager.WakeLock proximityWakeLock;
	private final AudioModeProvider audioModeProvider;
	private final AccelerometerListener accelerometerListener;
	private final ProximityDisplayListener displayListener;
	private int orientation = AccelerometerListener.ORIENTATION_UNKNOWN;
	private boolean uiShowing = false;
	private boolean isPhoneOffhook = false;
	private boolean dialpadVisible;
	private boolean isAttemptingVideoCall;
	private boolean isVideoCall;
	private boolean isRttCall;

	public ProximitySensor(
	@NonNull Context context,
	@NonNull AudioModeProvider audioModeProvider,
	@NonNull AccelerometerListener accelerometerListener) {
	Trace.beginSection("ProximitySensor.Constructor");
	powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
	if (powerManager.isWakeLockLevelSupported(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK)) {
	proximityWakeLock =
	powerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, TAG);
	} else {
	LogUtil.i("ProximitySensor.constructor", "Device does not support proximity wake lock.");
	proximityWakeLock = null;
	}
	this.accelerometerListener = accelerometerListener;
	this.accelerometerListener.setListener(this);

	displayListener =
	new ProximityDisplayListener(
	(DisplayManager) context.getSystemService(Context.DISPLAY_SERVICE));
	displayListener.register();

	this.audioModeProvider = audioModeProvider;
	this.audioModeProvider.addListener(this);
	Trace.endSection();
	}

	public void tearDown() {
	audioModeProvider.removeListener(this);

	accelerometerListener.enable(false);
	displayListener.unregister();

	turnOffProximitySensor(true);
	}

	/** Called to identify when the device is laid down flat. */
	@Override
	public void orientationChanged(int orientation) {
	this.orientation = orientation;
	updateProximitySensorMode();
	}

	/** Called to keep track of the overall UI state. */
	@Override
	public void onStateChange(InCallState oldState, InCallState newState, CallList callList) {
	// We ignore incoming state because we do not want to enable proximity
	// sensor during incoming call screen. We check hasLiveCall() because a disconnected call
	// can also put the in-call screen in the INCALL state.
	boolean hasOngoingCall = InCallState.INCALL == newState && callList.hasLiveCall();
	boolean isOffhook =
	InCallState.PENDING_OUTGOING == newState
	\|\| InCallState.OUTGOING == newState
	\|\| hasOngoingCall;

	DialerCall activeCall = callList.getActiveCall();
	boolean isVideoCall = activeCall != null && activeCall.isVideoCall();
	boolean isRttCall = activeCall != null && activeCall.isActiveRttCall();

	if (isOffhook != isPhoneOffhook
	\|\| this.isVideoCall != isVideoCall
	\|\| this.isRttCall != isRttCall) {
	isPhoneOffhook = isOffhook;
	this.isVideoCall = isVideoCall;
	this.isRttCall = isRttCall;

	orientation = AccelerometerListener.ORIENTATION_UNKNOWN;
	accelerometerListener.enable(isPhoneOffhook);

	updateProximitySensorMode();
	}
	}

	@Override
	public void onAudioStateChanged(CallAudioState audioState) {
	updateProximitySensorMode();
	}

	public void onDialpadVisible(boolean visible) {
	dialpadVisible = visible;
	updateProximitySensorMode();
	}

	public void setIsAttemptingVideoCall(boolean isAttemptingVideoCall) {
	LogUtil.i(
	"ProximitySensor.setIsAttemptingVideoCall",
	"isAttemptingVideoCall: %b",
	isAttemptingVideoCall);
	this.isAttemptingVideoCall = isAttemptingVideoCall;
	updateProximitySensorMode();
	}
	/** Used to save when the UI goes in and out of the foreground. */
	public void onInCallShowing(boolean showing) {
	if (showing) {
	uiShowing = true;

	// We only consider the UI not showing for instances where another app took the foreground.
	// If we stopped showing because the screen is off, we still consider that showing.
	} else if (powerManager.isScreenOn()) {
	uiShowing = false;
	}
	updateProximitySensorMode();
	}

	void onDisplayStateChanged(boolean isDisplayOn) {
	LogUtil.i("ProximitySensor.onDisplayStateChanged", "isDisplayOn: %b", isDisplayOn);
	accelerometerListener.enable(isDisplayOn);
	}

	/**
	* TODO: There is no way to determine if a screen is off due to proximity or if it is legitimately
	* off, but if ever we can do that in the future, it would be useful here. Until then, this
	* function will simply return true of the screen is off. TODO: Investigate whether this can be
	* replaced with the ProximityDisplayListener.
	*/
	public boolean isScreenReallyOff() {
	return !powerManager.isScreenOn();
	}

	private void turnOnProximitySensor() {
	if (proximityWakeLock != null) {
	if (!proximityWakeLock.isHeld()) {
	LogUtil.i("ProximitySensor.turnOnProximitySensor", "acquiring wake lock");
	proximityWakeLock.acquire();
	} else {
	LogUtil.i("ProximitySensor.turnOnProximitySensor", "wake lock already acquired");
	}
	}
	}

	private void turnOffProximitySensor(boolean screenOnImmediately) {
	if (proximityWakeLock != null) {
	if (proximityWakeLock.isHeld()) {
	LogUtil.i("ProximitySensor.turnOffProximitySensor", "releasing wake lock");
	int flags = (screenOnImmediately ? 0 : PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
	proximityWakeLock.release(flags);
	} else {
	LogUtil.i("ProximitySensor.turnOffProximitySensor", "wake lock already released");
	}
	}
	}

	/**
	* Updates the wake lock used to control proximity sensor behavior, based on the current state of
	* the phone.
	*
	* <p>On devices that have a proximity sensor, to avoid false touches during a call, we hold a
	* PROXIMITY_SCREEN_OFF_WAKE_LOCK wake lock whenever the phone is off hook. (When held, that wake
	* lock causes the screen to turn off automatically when the sensor detects an object close to the
	* screen.)
	*
	* <p>This method is a no-op for devices that don't have a proximity sensor.
	*
	* <p>Proximity wake lock will be released if any of the following conditions are true: the audio
	* is routed through bluetooth, a wired headset, or the speaker; the user requested, received a
	* request for, or is in a video call; or the phone is horizontal while in a call.
	*/
	private synchronized void updateProximitySensorMode() {
	Trace.beginSection("ProximitySensor.updateProximitySensorMode");
	final int audioRoute = audioModeProvider.getAudioState().getRoute();

	boolean screenOnImmediately =
	(CallAudioState.ROUTE_WIRED_HEADSET == audioRoute
	\|\| CallAudioState.ROUTE_SPEAKER == audioRoute
	\|\| CallAudioState.ROUTE_BLUETOOTH == audioRoute
	\|\| isAttemptingVideoCall
	\|\| isVideoCall
	\|\| isRttCall);

	// We do not keep the screen off when the user is outside in-call screen and we are
	// horizontal, but we do not force it on when we become horizontal until the
	// proximity sensor goes negative.
	final boolean horizontal = (orientation == AccelerometerListener.ORIENTATION_HORIZONTAL);
	screenOnImmediately \|= !uiShowing && horizontal;

	// We do not keep the screen off when dialpad is visible, we are horizontal, and
	// the in-call screen is being shown.
	// At that moment we're pretty sure users want to use it, instead of letting the
	// proximity sensor turn off the screen by their hands.
	screenOnImmediately \|= dialpadVisible && horizontal;

	LogUtil.i(
	"ProximitySensor.updateProximitySensorMode",
	"screenOnImmediately: %b, dialPadVisible: %b, "
	+ "offHook: %b, horizontal: %b, uiShowing: %b, audioRoute: %s",
	screenOnImmediately,
	dialpadVisible,
	isPhoneOffhook,
	orientation == AccelerometerListener.ORIENTATION_HORIZONTAL,
	uiShowing,
	CallAudioState.audioRouteToString(audioRoute));

	if (isPhoneOffhook && !screenOnImmediately) {
	LogUtil.v("ProximitySensor.updateProximitySensorMode", "turning on proximity sensor");
	// Phone is in use! Arrange for the screen to turn off
	// automatically when the sensor detects a close object.
	turnOnProximitySensor();
	} else {
	LogUtil.v("ProximitySensor.updateProximitySensorMode", "turning off proximity sensor");
	// Phone is either idle, or ringing. We don't want any special proximity sensor
	// behavior in either case.
	turnOffProximitySensor(screenOnImmediately);
	}
	Trace.endSection();
	}

	/**
	* Implementation of a {@link DisplayListener} that maintains a binary state: Screen on vs screen
	* off. Used by the proximity sensor manager to decide whether or not it needs to listen to
	* accelerometer events.
	*/
	public class ProximityDisplayListener implements DisplayListener {

	private DisplayManager displayManager;
	private boolean isDisplayOn = true;

	ProximityDisplayListener(DisplayManager displayManager) {
	this.displayManager = displayManager;
	}

	void register() {
	displayManager.registerDisplayListener(this, null);
	}

	void unregister() {
	displayManager.unregisterDisplayListener(this);
	}

	@Override
	public void onDisplayRemoved(int displayId) {}

	@Override
	public void onDisplayChanged(int displayId) {
	if (displayId == Display.DEFAULT_DISPLAY) {
	final Display display = displayManager.getDisplay(displayId);

	final boolean isDisplayOn = display.getState() != Display.STATE_OFF;
	// For call purposes, we assume that as long as the screen is not truly off, it is
	// considered on, even if it is in an unknown or low power idle state.
	if (isDisplayOn != this.isDisplayOn) {
	this.isDisplayOn = isDisplayOn;
	onDisplayStateChanged(this.isDisplayOn);
	}
	}
	}

	@Override
	public void onDisplayAdded(int displayId) {}
	}
	}