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

   1 /*
   2  * Copyright (C) 2014 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License
  15  */
  16
  17 package com.android.systemui.statusbar.phone;
  18
  19 import android.app.ActivityManager;
  20 import android.app.ActivityManagerNative;
  21 import android.app.admin.DevicePolicyManager;
  22 import android.content.BroadcastReceiver;
  23 import android.content.ComponentName;
  24 import android.content.Context;
  25 import android.content.Intent;
  26 import android.content.IntentFilter;
  27 import android.content.ServiceConnection;
  28 import android.content.pm.ActivityInfo;
  29 import android.content.pm.PackageManager;
  30 import android.content.pm.ResolveInfo;
  31 import android.content.res.Configuration;
  32 import android.os.AsyncTask;
  33 import android.os.Bundle;
  34 import android.os.IBinder;
  35 import android.os.Message;
  36 import android.os.Messenger;
  37 import android.os.RemoteException;
  38 import android.os.SystemProperties;
  39 import android.os.UserHandle;
  40 import android.provider.MediaStore;
  41 import android.service.media.CameraPrewarmService;
  42 import android.telecom.TelecomManager;
  43 import android.util.AttributeSet;
  44 import android.util.Log;
  45 import android.util.TypedValue;
  46 import android.view.View;
  47 import android.view.ViewGroup;
  48 import android.view.accessibility.AccessibilityNodeInfo;
  49 import android.widget.FrameLayout;
  50 import android.widget.TextView;
  51
  52 import com.android.internal.widget.LockPatternUtils;
  53 import com.android.keyguard.EmergencyButton;
  54 import com.android.keyguard.KeyguardUpdateMonitor;
  55 import com.android.keyguard.KeyguardUpdateMonitorCallback;
  56 import com.android.systemui.EventLogConstants;
  57 import com.android.systemui.EventLogTags;
  58 import com.android.systemui.Interpolators;
  59 import com.android.systemui.R;
  60 import com.android.systemui.assist.AssistManager;
  61 import com.android.systemui.statusbar.CommandQueue;
  62 import com.android.systemui.statusbar.KeyguardAffordanceView;
  63 import com.android.systemui.statusbar.KeyguardIndicationController;
  64 import com.android.systemui.statusbar.policy.AccessibilityController;
  65 import com.android.systemui.statusbar.policy.FlashlightController;
  66 import com.android.systemui.statusbar.policy.PreviewInflater;
  67
  68 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_CLICK;
  69 import static android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
  70
  71 /**
  72  * Implementation for the bottom area of the Keyguard, including camera/phone affordance and status
  73  * text.
  74  */
  75 public class KeyguardBottomAreaView extends FrameLayout implements View.OnClickListener,
  76         UnlockMethodCache.OnUnlockMethodChangedListener,
  77         AccessibilityController.AccessibilityStateChangedCallback, View.OnLongClickListener {
  78
  79     final static String TAG = "PhoneStatusBar/KeyguardBottomAreaView";
  80
  81     public static final String CAMERA_LAUNCH_SOURCE_AFFORDANCE = "lockscreen_affordance";
  82     public static final String CAMERA_LAUNCH_SOURCE_WIGGLE = "wiggle_gesture";
  83     public static final String CAMERA_LAUNCH_SOURCE_POWER_DOUBLE_TAP = "power_double_tap";
  84
  85     public static final String EXTRA_CAMERA_LAUNCH_SOURCE
  86             = "com.android.systemui.camera_launch_source";
  87
  88     private static final Intent SECURE_CAMERA_INTENT =
  89             new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE)
  90                     .addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
  91     public static final Intent INSECURE_CAMERA_INTENT =
  92             new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
  93     private static final Intent PHONE_INTENT = new Intent(Intent.ACTION_DIAL);
  94     private static final int DOZE_ANIMATION_STAGGER_DELAY = 48;
  95     private static final int DOZE_ANIMATION_ELEMENT_DURATION = 250;
  96
  97     private EmergencyButton mEmergencyButton;
  98     private KeyguardAffordanceView mCameraImageView;
  99     private KeyguardAffordanceView mLeftAffordanceView;
 100     private LockIcon mLockIcon;
 101     private TextView mIndicationText;
 102     private ViewGroup mPreviewContainer;
 103
 104     private View mLeftPreview;
 105     private View mCameraPreview;
 106
 107     private ActivityStarter mActivityStarter;
 108     private UnlockMethodCache mUnlockMethodCache;
 109     private LockPatternUtils mLockPatternUtils;
 110     private FlashlightController mFlashlightController;
 111     private PreviewInflater mPreviewInflater;
 112     private KeyguardIndicationController mIndicationController;
 113     private AccessibilityController mAccessibilityController;
 114     private PhoneStatusBar mPhoneStatusBar;
 115
 116     private boolean mUserSetupComplete;
 117     private boolean mPrewarmBound;
 118     private Messenger mPrewarmMessenger;
 119     private final ServiceConnection mPrewarmConnection = new ServiceConnection() {
 120
 121         @Override
 122         public void onServiceConnected(ComponentName name, IBinder service) {
 123             mPrewarmMessenger = new Messenger(service);
 124         }
 125
 126         @Override
 127         public void onServiceDisconnected(ComponentName name) {
 128             mPrewarmMessenger = null;
 129         }
 130     };
 131
 132     private boolean mLeftIsVoiceAssist;
 133     private AssistManager mAssistManager;
 134
 135     public KeyguardBottomAreaView(Context context) {
 136         this(context, null);
 137     }
 138
 139     public KeyguardBottomAreaView(Context context, AttributeSet attrs) {
 140         this(context, attrs, 0);
 141     }
 142
 143     public KeyguardBottomAreaView(Context context, AttributeSet attrs, int defStyleAttr) {
 144         this(context, attrs, defStyleAttr, 0);
 145     }
 146
 147     public KeyguardBottomAreaView(Context context, AttributeSet attrs, int defStyleAttr,
 148             int defStyleRes) {
 149         super(context, attrs, defStyleAttr, defStyleRes);
 150     }
 151
 152     private AccessibilityDelegate mAccessibilityDelegate = new AccessibilityDelegate() {
 153         @Override
 154         public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
 155             super.onInitializeAccessibilityNodeInfo(host, info);
 156             String label = null;
 157             if (host == mLockIcon) {
 158                 label = getResources().getString(R.string.unlock_label);
 159             } else if (host == mCameraImageView) {
 160                 label = getResources().getString(R.string.camera_label);
 161             } else if (host == mLeftAffordanceView) {
 162                 if (mLeftIsVoiceAssist) {
 163                     label = getResources().getString(R.string.voice_assist_label);
 164                 } else {
 165                     label = getResources().getString(R.string.phone_label);
 166                 }
 167             }
 168             info.addAction(new AccessibilityAction(ACTION_CLICK, label));
 169         }
 170
 171         @Override
 172         public boolean performAccessibilityAction(View host, int action, Bundle args) {
 173             if (action == ACTION_CLICK) {
 174                 if (host == mLockIcon) {
 175                     mPhoneStatusBar.animateCollapsePanels(
 176                             CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL, true /* force */);
 177                     return true;
 178                 } else if (host == mCameraImageView) {
 179                     launchCamera(CAMERA_LAUNCH_SOURCE_AFFORDANCE);
 180                     return true;
 181                 } else if (host == mLeftAffordanceView) {
 182                     launchLeftAffordance();
 183                     return true;
 184                 }
 185             }
 186             return super.performAccessibilityAction(host, action, args);
 187         }
 188     };
 189
 190     @Override
 191     protected void onFinishInflate() {
 192         super.onFinishInflate();
 193         mLockPatternUtils = new LockPatternUtils(mContext);
 194         mPreviewContainer = (ViewGroup) findViewById(R.id.preview_container);
 195         mEmergencyButton = (EmergencyButton) findViewById(R.id.emergency_call_button);
 196         mCameraImageView = (KeyguardAffordanceView) findViewById(R.id.camera_button);
 197         mLeftAffordanceView = (KeyguardAffordanceView) findViewById(R.id.left_button);
 198         mLockIcon = (LockIcon) findViewById(R.id.lock_icon);
 199         mIndicationText = (TextView) findViewById(R.id.keyguard_indication_text);
 200         watchForCameraPolicyChanges();
 201         updateCameraVisibility();
 202         mUnlockMethodCache = UnlockMethodCache.getInstance(getContext());
 203         mUnlockMethodCache.addListener(this);
 204         mLockIcon.update();
 205         updateEmergencyButton();
 206         setClipChildren(false);
 207         setClipToPadding(false);
 208         mPreviewInflater = new PreviewInflater(mContext, new LockPatternUtils(mContext));
 209         inflateCameraPreview();
 210         mLockIcon.setOnClickListener(this);
 211         mLockIcon.setOnLongClickListener(this);
 212         mCameraImageView.setOnClickListener(this);
 213         mLeftAffordanceView.setOnClickListener(this);
 214         initAccessibility();
 215     }
 216
 217     private void initAccessibility() {
 218         mLockIcon.setAccessibilityDelegate(mAccessibilityDelegate);
 219         mLeftAffordanceView.setAccessibilityDelegate(mAccessibilityDelegate);
 220         mCameraImageView.setAccessibilityDelegate(mAccessibilityDelegate);
 221     }
 222
 223     @Override
 224     protected void onConfigurationChanged(Configuration newConfig) {
 225         super.onConfigurationChanged(newConfig);
 226         int indicationBottomMargin = getResources().getDimensionPixelSize(
 227                 R.dimen.keyguard_indication_margin_bottom);
 228         MarginLayoutParams mlp = (MarginLayoutParams) mIndicationText.getLayoutParams();
 229         if (mlp.bottomMargin != indicationBottomMargin) {
 230             mlp.bottomMargin = indicationBottomMargin;
 231             mIndicationText.setLayoutParams(mlp);
 232         }
 233
 234         // Respect font size setting.
 235         mIndicationText.setTextSize(TypedValue.COMPLEX_UNIT_PX,
 236                 getResources().getDimensionPixelSize(
 237                         com.android.internal.R.dimen.text_size_small_material));
 238
 239         ViewGroup.LayoutParams lp = mCameraImageView.getLayoutParams();
 240         lp.width = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_width);
 241         lp.height = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_height);
 242         mCameraImageView.setLayoutParams(lp);
 243         mCameraImageView.setImageDrawable(mContext.getDrawable(R.drawable.ic_camera_alt_24dp));
 244
 245         lp = mLockIcon.getLayoutParams();
 246         lp.width = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_width);
 247         lp.height = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_height);
 248         mLockIcon.setLayoutParams(lp);
 249         mLockIcon.update(true /* force */);
 250
 251         lp = mLeftAffordanceView.getLayoutParams();
 252         lp.width = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_width);
 253         lp.height = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_height);
 254         mLeftAffordanceView.setLayoutParams(lp);
 255         updateLeftAffordanceIcon();
 256         updateEmergencyButton();
 257     }
 258
 259     public void setActivityStarter(ActivityStarter activityStarter) {
 260         mActivityStarter = activityStarter;
 261     }
 262
 263     public void setFlashlightController(FlashlightController flashlightController) {
 264         mFlashlightController = flashlightController;
 265     }
 266
 267     public void setAccessibilityController(AccessibilityController accessibilityController) {
 268         mAccessibilityController = accessibilityController;
 269         mLockIcon.setAccessibilityController(accessibilityController);
 270         accessibilityController.addStateChangedCallback(this);
 271     }
 272
 273     public void setPhoneStatusBar(PhoneStatusBar phoneStatusBar) {
 274         mPhoneStatusBar = phoneStatusBar;
 275         updateCameraVisibility(); // in case onFinishInflate() was called too early
 276     }
 277
 278     public void setUserSetupComplete(boolean userSetupComplete) {
 279         mUserSetupComplete = userSetupComplete;
 280         updateCameraVisibility();
 281         updateLeftAffordanceIcon();
 282     }
 283
 284     private Intent getCameraIntent() {
 285         KeyguardUpdateMonitor updateMonitor = KeyguardUpdateMonitor.getInstance(mContext);
 286         boolean canSkipBouncer = updateMonitor.getUserCanSkipBouncer(
 287                 KeyguardUpdateMonitor.getCurrentUser());
 288         boolean secure = mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser());
 289         return (secure && !canSkipBouncer) ? SECURE_CAMERA_INTENT : INSECURE_CAMERA_INTENT;
 290     }
 291
 292     /**
 293      * Resolves the intent to launch the camera application.
 294      */
 295     public ResolveInfo resolveCameraIntent() {
 296         return mContext.getPackageManager().resolveActivityAsUser(getCameraIntent(),
 297                 PackageManager.MATCH_DEFAULT_ONLY,
 298                 KeyguardUpdateMonitor.getCurrentUser());
 299     }
 300
 301     private void updateCameraVisibility() {
 302         if (mCameraImageView == null) {
 303             // Things are not set up yet; reply hazy, ask again later
 304             return;
 305         }
 306         ResolveInfo resolved = resolveCameraIntent();
 307         boolean visible = !isCameraDisabledByDpm() && resolved != null
 308                 && getResources().getBoolean(R.bool.config_keyguardShowCameraAffordance)
 309                 && mUserSetupComplete;
 310         mCameraImageView.setVisibility(visible ? View.VISIBLE : View.GONE);
 311     }
 312
 313     private void updateLeftAffordanceIcon() {
 314         mLeftIsVoiceAssist = canLaunchVoiceAssist();
 315         int drawableId;
 316         int contentDescription;
 317         boolean visible = mUserSetupComplete;
 318         if (mLeftIsVoiceAssist) {
 319             drawableId = R.drawable.ic_mic_26dp;
 320             contentDescription = R.string.accessibility_voice_assist_button;
 321         } else {
 322             visible &= isPhoneVisible();
 323             drawableId = R.drawable.ic_phone_24dp;
 324             contentDescription = R.string.accessibility_phone_button;
 325         }
 326         mLeftAffordanceView.setVisibility(visible ? View.VISIBLE : View.GONE);
 327         mLeftAffordanceView.setImageDrawable(mContext.getDrawable(drawableId));
 328         mLeftAffordanceView.setContentDescription(mContext.getString(contentDescription));
 329     }
 330
 331     public boolean isLeftVoiceAssist() {
 332         return mLeftIsVoiceAssist;
 333     }
 334
 335     private boolean isPhoneVisible() {
 336         PackageManager pm = mContext.getPackageManager();
 337         return pm.hasSystemFeature(PackageManager.FEATURE_TELEPHONY)
 338                 && pm.resolveActivity(PHONE_INTENT, 0) != null;
 339     }
 340
 341     private boolean isCameraDisabledByDpm() {
 342         final DevicePolicyManager dpm =
 343                 (DevicePolicyManager) getContext().getSystemService(Context.DEVICE_POLICY_SERVICE);
 344         if (dpm != null && mPhoneStatusBar != null) {
 345             try {
 346                 final int userId = ActivityManagerNative.getDefault().getCurrentUser().id;
 347                 final int disabledFlags = dpm.getKeyguardDisabledFeatures(null, userId);
 348                 final  boolean disabledBecauseKeyguardSecure =
 349                         (disabledFlags & DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA) != 0
 350                                 && mPhoneStatusBar.isKeyguardSecure();
 351                 return dpm.getCameraDisabled(null) || disabledBecauseKeyguardSecure;
 352             } catch (RemoteException e) {
 353                 Log.e(TAG, "Can't get userId", e);
 354             }
 355         }
 356         return false;
 357     }
 358
 359     private void watchForCameraPolicyChanges() {
 360         final IntentFilter filter = new IntentFilter();
 361         filter.addAction(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED);
 362         getContext().registerReceiverAsUser(mDevicePolicyReceiver,
 363                 UserHandle.ALL, filter, null, null);
 364         KeyguardUpdateMonitor.getInstance(mContext).registerCallback(mUpdateMonitorCallback);
 365     }
 366
 367     @Override
 368     public void onStateChanged(boolean accessibilityEnabled, boolean touchExplorationEnabled) {
 369         mCameraImageView.setClickable(touchExplorationEnabled);
 370         mLeftAffordanceView.setClickable(touchExplorationEnabled);
 371         mCameraImageView.setFocusable(accessibilityEnabled);
 372         mLeftAffordanceView.setFocusable(accessibilityEnabled);
 373         mLockIcon.update();
 374     }
 375
 376     @Override
 377     public void onClick(View v) {
 378         if (v == mCameraImageView) {
 379             launchCamera(CAMERA_LAUNCH_SOURCE_AFFORDANCE);
 380         } else if (v == mLeftAffordanceView) {
 381             launchLeftAffordance();
 382         } if (v == mLockIcon) {
 383             if (!mAccessibilityController.isAccessibilityEnabled()) {
 384                 handleTrustCircleClick();
 385             } else {
 386                 mPhoneStatusBar.animateCollapsePanels(
 387                         CommandQueue.FLAG_EXCLUDE_NONE, true /* force */);
 388             }
 389         }
 390     }
 391
 392     @Override
 393     public boolean onLongClick(View v) {
 394         handleTrustCircleClick();
 395         return true;
 396     }
 397
 398     private void handleTrustCircleClick() {
 399         EventLogTags.writeSysuiLockscreenGesture(
 400                 EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_TAP_LOCK, 0 /* lengthDp - N/A */,
 401                 0 /* velocityDp - N/A */);
 402         mIndicationController.showTransientIndication(
 403                 R.string.keyguard_indication_trust_disabled);
 404         mLockPatternUtils.requireCredentialEntry(KeyguardUpdateMonitor.getCurrentUser());
 405     }
 406
 407     public void bindCameraPrewarmService() {
 408         Intent intent = getCameraIntent();
 409         ActivityInfo targetInfo = PreviewInflater.getTargetActivityInfo(mContext, intent,
 410                 KeyguardUpdateMonitor.getCurrentUser());
 411         if (targetInfo != null && targetInfo.metaData != null) {
 412             String clazz = targetInfo.metaData.getString(
 413                     MediaStore.META_DATA_STILL_IMAGE_CAMERA_PREWARM_SERVICE);
 414             if (clazz != null) {
 415                 Intent serviceIntent = new Intent();
 416                 serviceIntent.setClassName(targetInfo.packageName, clazz);
 417                 serviceIntent.setAction(CameraPrewarmService.ACTION_PREWARM);
 418                 try {
 419                     if (getContext().bindServiceAsUser(serviceIntent, mPrewarmConnection,
 420                             Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE,
 421                             new UserHandle(UserHandle.USER_CURRENT))) {
 422                         mPrewarmBound = true;
 423                     }
 424                 } catch (SecurityException e) {
 425                     Log.w(TAG, "Unable to bind to prewarm service package=" + targetInfo.packageName
 426                             + " class=" + clazz, e);
 427                 }
 428             }
 429         }
 430     }
 431
 432     public void unbindCameraPrewarmService(boolean launched) {
 433         if (mPrewarmBound) {
 434             if (mPrewarmMessenger != null && launched) {
 435                 try {
 436                     mPrewarmMessenger.send(Message.obtain(null /* handler */,
 437                             CameraPrewarmService.MSG_CAMERA_FIRED));
 438                 } catch (RemoteException e) {
 439                     Log.w(TAG, "Error sending camera fired message", e);
 440                 }
 441             }
 442             mContext.unbindService(mPrewarmConnection);
 443             mPrewarmBound = false;
 444         }
 445     }
 446
 447     public void launchCamera(String source) {
 448         final Intent intent = getCameraIntent();
 449         intent.putExtra(EXTRA_CAMERA_LAUNCH_SOURCE, source);
 450         boolean wouldLaunchResolverActivity = PreviewInflater.wouldLaunchResolverActivity(
 451                 mContext, intent, KeyguardUpdateMonitor.getCurrentUser());
 452         if (intent == SECURE_CAMERA_INTENT && !wouldLaunchResolverActivity) {
 453             AsyncTask.execute(new Runnable() {
 454                 @Override
 455                 public void run() {
 456                     int result = ActivityManager.START_CANCELED;
 457                     try {
 458                         result = ActivityManagerNative.getDefault().startActivityAsUser(
 459                                 null, getContext().getBasePackageName(),
 460                                 intent,
 461                                 intent.resolveTypeIfNeeded(getContext().getContentResolver()),
 462                                 null, null, 0, Intent.FLAG_ACTIVITY_NEW_TASK, null, null,
 463                                 UserHandle.CURRENT.getIdentifier());
 464                     } catch (RemoteException e) {
 465                         Log.w(TAG, "Unable to start camera activity", e);
 466                     }
 467                     mActivityStarter.preventNextAnimation();
 468                     final boolean launched = isSuccessfulLaunch(result);
 469                     post(new Runnable() {
 470                         @Override
 471                         public void run() {
 472                             unbindCameraPrewarmService(launched);
 473                         }
 474                     });
 475                 }
 476             });
 477         } else {
 478
 479             // We need to delay starting the activity because ResolverActivity finishes itself if
 480             // launched behind lockscreen.
 481             mActivityStarter.startActivity(intent, false /* dismissShade */,
 482                     new ActivityStarter.Callback() {
 483                         @Override
 484                         public void onActivityStarted(int resultCode) {
 485                             unbindCameraPrewarmService(isSuccessfulLaunch(resultCode));
 486                         }
 487                     });
 488         }
 489     }
 490
 491     private static boolean isSuccessfulLaunch(int result) {
 492         return result == ActivityManager.START_SUCCESS
 493                 || result == ActivityManager.START_DELIVERED_TO_TOP
 494                 || result == ActivityManager.START_TASK_TO_FRONT;
 495     }
 496
 497     public void launchLeftAffordance() {
 498         if (mLeftIsVoiceAssist) {
 499             launchVoiceAssist();
 500         } else {
 501             launchPhone();
 502         }
 503     }
 504
 505     private void launchVoiceAssist() {
 506         Runnable runnable = new Runnable() {
 507             @Override
 508             public void run() {
 509                 mAssistManager.launchVoiceAssistFromKeyguard();
 510                 mActivityStarter.preventNextAnimation();
 511             }
 512         };
 513         if (mPhoneStatusBar.isKeyguardCurrentlySecure()) {
 514             AsyncTask.execute(runnable);
 515         } else {
 516             mPhoneStatusBar.executeRunnableDismissingKeyguard(runnable, null /* cancelAction */,
 517                     false /* dismissShade */, false /* afterKeyguardGone */, true /* deferred */);
 518         }
 519     }
 520
 521     private boolean canLaunchVoiceAssist() {
 522         return mAssistManager.canVoiceAssistBeLaunchedFromKeyguard();
 523     }
 524
 525     private void launchPhone() {
 526         final TelecomManager tm = TelecomManager.from(mContext);
 527         if (tm.isInCall()) {
 528             AsyncTask.execute(new Runnable() {
 529                 @Override
 530                 public void run() {
 531                     tm.showInCallScreen(false /* showDialpad */);
 532                 }
 533             });
 534         } else {
 535             mActivityStarter.startActivity(PHONE_INTENT, false /* dismissShade */);
 536         }
 537     }
 538
 539
 540     @Override
 541     protected void onVisibilityChanged(View changedView, int visibility) {
 542         super.onVisibilityChanged(changedView, visibility);
 543         if (changedView == this && visibility == VISIBLE) {
 544             mLockIcon.update();
 545             updateCameraVisibility();
 546         }
 547     }
 548
 549     public KeyguardAffordanceView getLeftView() {
 550         return mLeftAffordanceView;
 551     }
 552
 553     public KeyguardAffordanceView getRightView() {
 554         return mCameraImageView;
 555     }
 556
 557     public View getLeftPreview() {
 558         return mLeftPreview;
 559     }
 560
 561     public View getRightPreview() {
 562         return mCameraPreview;
 563     }
 564
 565     public LockIcon getLockIcon() {
 566         return mLockIcon;
 567     }
 568
 569     public View getIndicationView() {
 570         return mIndicationText;
 571     }
 572
 573     @Override
 574     public boolean hasOverlappingRendering() {
 575         return false;
 576     }
 577
 578     @Override
 579     public void onUnlockMethodStateChanged() {
 580         mLockIcon.update();
 581         updateCameraVisibility();
 582     }
 583
 584     private void inflateCameraPreview() {
 585         mCameraPreview = mPreviewInflater.inflatePreview(getCameraIntent());
 586         if (mCameraPreview != null) {
 587             mPreviewContainer.addView(mCameraPreview);
 588             mCameraPreview.setVisibility(View.INVISIBLE);
 589         }
 590     }
 591
 592     private void updateLeftPreview() {
 593         View previewBefore = mLeftPreview;
 594         if (previewBefore != null) {
 595             mPreviewContainer.removeView(previewBefore);
 596         }
 597         if (mLeftIsVoiceAssist) {
 598             mLeftPreview = mPreviewInflater.inflatePreviewFromService(
 599                     mAssistManager.getVoiceInteractorComponentName());
 600         } else {
 601             mLeftPreview = mPreviewInflater.inflatePreview(PHONE_INTENT);
 602         }
 603         if (mLeftPreview != null) {
 604             mPreviewContainer.addView(mLeftPreview);
 605             mLeftPreview.setVisibility(View.INVISIBLE);
 606         }
 607     }
 608
 609     public void startFinishDozeAnimation() {
 610         long delay = 0;
 611         if (mLeftAffordanceView.getVisibility() == View.VISIBLE) {
 612             startFinishDozeAnimationElement(mLeftAffordanceView, delay);
 613             delay += DOZE_ANIMATION_STAGGER_DELAY;
 614         }
 615         startFinishDozeAnimationElement(mLockIcon, delay);
 616         delay += DOZE_ANIMATION_STAGGER_DELAY;
 617         if (mCameraImageView.getVisibility() == View.VISIBLE) {
 618             startFinishDozeAnimationElement(mCameraImageView, delay);
 619         }
 620         mIndicationText.setAlpha(0f);
 621         mIndicationText.animate()
 622                 .alpha(1f)
 623                 .setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN)
 624                 .setDuration(NotificationPanelView.DOZE_ANIMATION_DURATION);
 625     }
 626
 627     private void startFinishDozeAnimationElement(View element, long delay) {
 628         element.setAlpha(0f);
 629         element.setTranslationY(element.getHeight() / 2);
 630         element.animate()
 631                 .alpha(1f)
 632                 .translationY(0f)
 633                 .setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN)
 634                 .setStartDelay(delay)
 635                 .setDuration(DOZE_ANIMATION_ELEMENT_DURATION);
 636     }
 637
 638     private final BroadcastReceiver mDevicePolicyReceiver = new BroadcastReceiver() {
 639         @Override
 640         public void onReceive(Context context, Intent intent) {
 641             post(new Runnable() {
 642                 @Override
 643                 public void run() {
 644                     updateCameraVisibility();
 645                 }
 646             });
 647         }
 648     };
 649
 650     private final KeyguardUpdateMonitorCallback mUpdateMonitorCallback =
 651             new KeyguardUpdateMonitorCallback() {
 652         @Override
 653         public void onUserSwitchComplete(int userId) {
 654             updateCameraVisibility();
 655         }
 656
 657         @Override
 658         public void onStartedWakingUp() {
 659             mLockIcon.setDeviceInteractive(true);
 660         }
 661
 662         @Override
 663         public void onFinishedGoingToSleep(int why) {
 664             mLockIcon.setDeviceInteractive(false);
 665         }
 666
 667         @Override
 668         public void onScreenTurnedOn() {
 669             mLockIcon.setScreenOn(true);
 670         }
 671
 672         @Override
 673         public void onScreenTurnedOff() {
 674             mLockIcon.setScreenOn(false);
 675         }
 676
 677         @Override
 678         public void onKeyguardVisibilityChanged(boolean showing) {
 679             mLockIcon.update();
 680         }
 681
 682         @Override
 683         public void onFingerprintRunningStateChanged(boolean running) {
 684             mLockIcon.update();
 685         }
 686
 687         @Override
 688         public void onStrongAuthStateChanged(int userId) {
 689             mLockIcon.update();
 690         }
 691     };
 692
 693     public void setKeyguardIndicationController(
 694             KeyguardIndicationController keyguardIndicationController) {
 695         mIndicationController = keyguardIndicationController;
 696     }
 697
 698     public void setAssistManager(AssistManager assistManager) {
 699         mAssistManager = assistManager;
 700         updateLeftAffordance();
 701     }
 702
 703     public void updateLeftAffordance() {
 704         updateLeftAffordanceIcon();
 705         updateLeftPreview();
 706     }
 707
 708     private void updateEmergencyButton() {
 709         if (SystemProperties.getBoolean("persist.radio.emgcy_btn_onswipe",false)) {
 710             if (mEmergencyButton != null) {
 711                 mEmergencyButton.updateEmergencyCallButton();
 712             }
 713         }
 714     }
 715 }