| /* |
| * Copyright (C) 2014 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.systemui.statusbar.phone; |
| |
| import static com.android.keyguard.KeyguardSecurityModel.SecurityMode; |
| import static com.android.systemui.plugins.ActivityStarter.OnDismissAction; |
| |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.Log; |
| import android.util.MathUtils; |
| import android.util.Slog; |
| import android.util.StatsLog; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewTreeObserver; |
| import android.view.WindowInsets; |
| |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.keyguard.KeyguardHostView; |
| import com.android.keyguard.KeyguardSecurityView; |
| import com.android.keyguard.KeyguardUpdateMonitor; |
| import com.android.keyguard.KeyguardUpdateMonitorCallback; |
| import com.android.keyguard.R; |
| import com.android.keyguard.ViewMediatorCallback; |
| import com.android.systemui.DejankUtils; |
| import com.android.systemui.classifier.FalsingManager; |
| import com.android.systemui.keyguard.DismissCallbackRegistry; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * A class which manages the bouncer on the lockscreen. |
| */ |
| public class KeyguardBouncer { |
| |
| private static final String TAG = "KeyguardBouncer"; |
| static final float ALPHA_EXPANSION_THRESHOLD = 0.95f; |
| static final float EXPANSION_HIDDEN = 1f; |
| static final float EXPANSION_VISIBLE = 0f; |
| |
| protected final Context mContext; |
| protected final ViewMediatorCallback mCallback; |
| protected final LockPatternUtils mLockPatternUtils; |
| protected final ViewGroup mContainer; |
| private final FalsingManager mFalsingManager; |
| private final DismissCallbackRegistry mDismissCallbackRegistry; |
| private final Handler mHandler; |
| private final BouncerExpansionCallback mExpansionCallback; |
| private final KeyguardUpdateMonitorCallback mUpdateMonitorCallback = |
| new KeyguardUpdateMonitorCallback() { |
| @Override |
| public void onStrongAuthStateChanged(int userId) { |
| mBouncerPromptReason = mCallback.getBouncerPromptReason(); |
| } |
| }; |
| private final Runnable mRemoveViewRunnable = this::removeView; |
| protected KeyguardHostView mKeyguardView; |
| private final Runnable mResetRunnable = ()-> { |
| if (mKeyguardView != null) { |
| mKeyguardView.resetSecurityContainer(); |
| } |
| }; |
| |
| private int mStatusBarHeight; |
| private float mExpansion = EXPANSION_HIDDEN; |
| protected ViewGroup mRoot; |
| private boolean mShowingSoon; |
| private int mBouncerPromptReason; |
| private boolean mIsAnimatingAway; |
| private boolean mIsScrimmed; |
| private ViewGroup mLockIconContainer; |
| |
| public KeyguardBouncer(Context context, ViewMediatorCallback callback, |
| LockPatternUtils lockPatternUtils, ViewGroup container, |
| DismissCallbackRegistry dismissCallbackRegistry, FalsingManager falsingManager, |
| BouncerExpansionCallback expansionCallback) { |
| mContext = context; |
| mCallback = callback; |
| mLockPatternUtils = lockPatternUtils; |
| mContainer = container; |
| KeyguardUpdateMonitor.getInstance(mContext).registerCallback(mUpdateMonitorCallback); |
| mFalsingManager = falsingManager; |
| mDismissCallbackRegistry = dismissCallbackRegistry; |
| mExpansionCallback = expansionCallback; |
| mHandler = new Handler(); |
| } |
| |
| public void show(boolean resetSecuritySelection) { |
| show(resetSecuritySelection, true /* scrimmed */); |
| } |
| |
| /** |
| * Shows the bouncer. |
| * |
| * @param resetSecuritySelection Cleans keyguard view |
| * @param isScrimmed true when the bouncer show show scrimmed, false when the user will be |
| * dragging it and translation should be deferred. |
| */ |
| public void show(boolean resetSecuritySelection, boolean isScrimmed) { |
| final int keyguardUserId = KeyguardUpdateMonitor.getCurrentUser(); |
| if (keyguardUserId == UserHandle.USER_SYSTEM && UserManager.isSplitSystemUser()) { |
| // In split system user mode, we never unlock system user. |
| return; |
| } |
| ensureView(); |
| |
| // On the keyguard, we want to show the bouncer when the user drags up, but it's |
| // not correct to end the falsing session. We still need to verify if those touches |
| // are valid. |
| // Later, at the end of the animation, when the bouncer is at the top of the screen, |
| // onFullyShown() will be called and FalsingManager will stop recording touches. |
| if (isScrimmed) { |
| setExpansion(EXPANSION_VISIBLE); |
| } |
| mIsScrimmed = isScrimmed; |
| |
| if (resetSecuritySelection) { |
| // showPrimarySecurityScreen() updates the current security method. This is needed in |
| // case we are already showing and the current security method changed. |
| showPrimarySecurityScreen(); |
| } |
| if (mRoot.getVisibility() == View.VISIBLE || mShowingSoon) { |
| return; |
| } |
| |
| final int activeUserId = KeyguardUpdateMonitor.getCurrentUser(); |
| final boolean isSystemUser = |
| UserManager.isSplitSystemUser() && activeUserId == UserHandle.USER_SYSTEM; |
| final boolean allowDismissKeyguard = !isSystemUser && activeUserId == keyguardUserId; |
| |
| // If allowed, try to dismiss the Keyguard. If no security auth (password/pin/pattern) is |
| // set, this will dismiss the whole Keyguard. Otherwise, show the bouncer. |
| if (allowDismissKeyguard && mKeyguardView.dismiss(activeUserId)) { |
| return; |
| } |
| |
| // This condition may indicate an error on Android, so log it. |
| if (!allowDismissKeyguard) { |
| Slog.w(TAG, "User can't dismiss keyguard: " + activeUserId + " != " + keyguardUserId); |
| } |
| |
| mShowingSoon = true; |
| |
| // Split up the work over multiple frames. |
| DejankUtils.removeCallbacks(mResetRunnable); |
| DejankUtils.postAfterTraversal(mShowRunnable); |
| |
| mCallback.onBouncerVisiblityChanged(true /* shown */); |
| } |
| |
| public boolean isShowingScrimmed() { |
| return isShowing() && mIsScrimmed; |
| } |
| |
| public ViewGroup getLockIconContainer() { |
| return mRoot == null || mRoot.getVisibility() != View.VISIBLE ? null : mLockIconContainer; |
| } |
| |
| /** |
| * This method must be called at the end of the bouncer animation when |
| * the translation is performed manually by the user, otherwise FalsingManager |
| * will never be notified and its internal state will be out of sync. |
| */ |
| private void onFullyShown() { |
| mFalsingManager.onBouncerShown(); |
| if (mKeyguardView == null) { |
| Log.wtf(TAG, "onFullyShown when view was null"); |
| } else { |
| mKeyguardView.onResume(); |
| } |
| } |
| |
| /** |
| * @see #onFullyShown() |
| */ |
| private void onFullyHidden() { |
| if (!mShowingSoon) { |
| cancelShowRunnable(); |
| if (mRoot != null) { |
| mRoot.setVisibility(View.INVISIBLE); |
| } |
| mFalsingManager.onBouncerHidden(); |
| DejankUtils.postAfterTraversal(mResetRunnable); |
| } |
| } |
| |
| private final Runnable mShowRunnable = new Runnable() { |
| @Override |
| public void run() { |
| mRoot.setVisibility(View.VISIBLE); |
| showPromptReason(mBouncerPromptReason); |
| final CharSequence customMessage = mCallback.consumeCustomMessage(); |
| if (customMessage != null) { |
| mKeyguardView.showErrorMessage(customMessage); |
| } |
| // We might still be collapsed and the view didn't have time to layout yet or still |
| // be small, let's wait on the predraw to do the animation in that case. |
| if (mKeyguardView.getHeight() != 0 && mKeyguardView.getHeight() != mStatusBarHeight) { |
| mKeyguardView.startAppearAnimation(); |
| } else { |
| mKeyguardView.getViewTreeObserver().addOnPreDrawListener( |
| new ViewTreeObserver.OnPreDrawListener() { |
| @Override |
| public boolean onPreDraw() { |
| mKeyguardView.getViewTreeObserver().removeOnPreDrawListener(this); |
| mKeyguardView.startAppearAnimation(); |
| return true; |
| } |
| }); |
| mKeyguardView.requestLayout(); |
| } |
| mShowingSoon = false; |
| if (mExpansion == EXPANSION_VISIBLE) { |
| mKeyguardView.onResume(); |
| mKeyguardView.resetSecurityContainer(); |
| } |
| StatsLog.write(StatsLog.KEYGUARD_BOUNCER_STATE_CHANGED, |
| StatsLog.KEYGUARD_BOUNCER_STATE_CHANGED__STATE__SHOWN); |
| } |
| }; |
| |
| /** |
| * Show a string explaining why the security view needs to be solved. |
| * |
| * @param reason a flag indicating which string should be shown, see |
| * {@link KeyguardSecurityView#PROMPT_REASON_NONE} |
| * and {@link KeyguardSecurityView#PROMPT_REASON_RESTART} |
| */ |
| public void showPromptReason(int reason) { |
| if (mKeyguardView != null) { |
| mKeyguardView.showPromptReason(reason); |
| } else { |
| Log.w(TAG, "Trying to show prompt reason on empty bouncer"); |
| } |
| } |
| |
| public void showMessage(String message, ColorStateList colorState) { |
| if (mKeyguardView != null) { |
| mKeyguardView.showMessage(message, colorState); |
| } else { |
| Log.w(TAG, "Trying to show message on empty bouncer"); |
| } |
| } |
| |
| private void cancelShowRunnable() { |
| DejankUtils.removeCallbacks(mShowRunnable); |
| mShowingSoon = false; |
| } |
| |
| public void showWithDismissAction(OnDismissAction r, Runnable cancelAction) { |
| ensureView(); |
| mKeyguardView.setOnDismissAction(r, cancelAction); |
| show(false /* resetSecuritySelection */); |
| } |
| |
| public void hide(boolean destroyView) { |
| // TODO(b/113914868): investigation log for disappearing home button |
| Log.i(TAG, "KeyguardBouncer.hide (b/113914868): destroyView=" + destroyView); |
| if (isShowing()) { |
| StatsLog.write(StatsLog.KEYGUARD_BOUNCER_STATE_CHANGED, |
| StatsLog.KEYGUARD_BOUNCER_STATE_CHANGED__STATE__HIDDEN); |
| mDismissCallbackRegistry.notifyDismissCancelled(); |
| } |
| mFalsingManager.onBouncerHidden(); |
| mCallback.onBouncerVisiblityChanged(false /* shown */); |
| cancelShowRunnable(); |
| if (mKeyguardView != null) { |
| mKeyguardView.cancelDismissAction(); |
| mKeyguardView.cleanUp(); |
| } |
| mIsAnimatingAway = false; |
| if (mRoot != null) { |
| mRoot.setVisibility(View.INVISIBLE); |
| if (destroyView) { |
| |
| // We have a ViewFlipper that unregisters a broadcast when being detached, which may |
| // be slow because of AM lock contention during unlocking. We can delay it a bit. |
| mHandler.postDelayed(mRemoveViewRunnable, 50); |
| } |
| } |
| } |
| |
| /** |
| * See {@link StatusBarKeyguardViewManager#startPreHideAnimation}. |
| */ |
| public void startPreHideAnimation(Runnable runnable) { |
| mIsAnimatingAway = true; |
| if (mKeyguardView != null) { |
| mKeyguardView.startDisappearAnimation(runnable); |
| } else if (runnable != null) { |
| runnable.run(); |
| } |
| } |
| |
| /** |
| * Reset the state of the view. |
| */ |
| public void reset() { |
| cancelShowRunnable(); |
| inflateView(); |
| mFalsingManager.onBouncerHidden(); |
| } |
| |
| public void onScreenTurnedOff() { |
| if (mKeyguardView != null && mRoot != null && mRoot.getVisibility() == View.VISIBLE) { |
| mKeyguardView.onPause(); |
| } |
| } |
| |
| public boolean isShowing() { |
| return (mShowingSoon || (mRoot != null && mRoot.getVisibility() == View.VISIBLE)) |
| && mExpansion == EXPANSION_VISIBLE && !isAnimatingAway(); |
| } |
| |
| /** |
| * @return {@code true} when bouncer's pre-hide animation already started but isn't completely |
| * hidden yet, {@code false} otherwise. |
| */ |
| public boolean isAnimatingAway() { |
| return mIsAnimatingAway; |
| } |
| |
| public void prepare() { |
| boolean wasInitialized = mRoot != null; |
| ensureView(); |
| if (wasInitialized) { |
| showPrimarySecurityScreen(); |
| } |
| mBouncerPromptReason = mCallback.getBouncerPromptReason(); |
| } |
| |
| private void showPrimarySecurityScreen() { |
| mKeyguardView.showPrimarySecurityScreen(); |
| KeyguardSecurityView keyguardSecurityView = mKeyguardView.getCurrentSecurityView(); |
| if (keyguardSecurityView != null) { |
| mLockIconContainer = ((ViewGroup) keyguardSecurityView) |
| .findViewById(R.id.lock_icon_container); |
| } |
| } |
| |
| /** |
| * Current notification panel expansion |
| * @param fraction 0 when notification panel is collapsed and 1 when expanded. |
| * @see StatusBarKeyguardViewManager#onPanelExpansionChanged |
| */ |
| public void setExpansion(float fraction) { |
| float oldExpansion = mExpansion; |
| mExpansion = fraction; |
| if (mKeyguardView != null && !mIsAnimatingAway) { |
| float alpha = MathUtils.map(ALPHA_EXPANSION_THRESHOLD, 1, 1, 0, fraction); |
| mKeyguardView.setAlpha(MathUtils.constrain(alpha, 0f, 1f)); |
| mKeyguardView.setTranslationY(fraction * mKeyguardView.getHeight()); |
| } |
| |
| if (fraction == EXPANSION_VISIBLE && oldExpansion != EXPANSION_VISIBLE) { |
| onFullyShown(); |
| mExpansionCallback.onFullyShown(); |
| } else if (fraction == EXPANSION_HIDDEN && oldExpansion != EXPANSION_HIDDEN) { |
| onFullyHidden(); |
| mExpansionCallback.onFullyHidden(); |
| } else if (fraction != EXPANSION_VISIBLE && oldExpansion == EXPANSION_VISIBLE) { |
| mExpansionCallback.onStartingToHide(); |
| } |
| } |
| |
| public boolean willDismissWithAction() { |
| return mKeyguardView != null && mKeyguardView.hasDismissActions(); |
| } |
| |
| public int getTop() { |
| if (mKeyguardView == null) { |
| return 0; |
| } |
| |
| int top = mKeyguardView.getTop(); |
| // The password view has an extra top padding that should be ignored. |
| if (mKeyguardView.getCurrentSecurityMode() == SecurityMode.Password) { |
| View messageArea = mKeyguardView.findViewById(R.id.keyguard_message_area); |
| top += messageArea.getTop(); |
| } |
| return top; |
| } |
| |
| protected void ensureView() { |
| // Removal of the view might be deferred to reduce unlock latency, |
| // in this case we need to force the removal, otherwise we'll |
| // end up in an unpredictable state. |
| boolean forceRemoval = mHandler.hasCallbacks(mRemoveViewRunnable); |
| if (mRoot == null || forceRemoval) { |
| inflateView(); |
| } |
| } |
| |
| protected void inflateView() { |
| removeView(); |
| mHandler.removeCallbacks(mRemoveViewRunnable); |
| mRoot = (ViewGroup) LayoutInflater.from(mContext).inflate(R.layout.keyguard_bouncer, null); |
| mKeyguardView = mRoot.findViewById(R.id.keyguard_host_view); |
| mKeyguardView.setLockPatternUtils(mLockPatternUtils); |
| mKeyguardView.setViewMediatorCallback(mCallback); |
| mContainer.addView(mRoot, mContainer.getChildCount()); |
| mStatusBarHeight = mRoot.getResources().getDimensionPixelOffset( |
| com.android.systemui.R.dimen.status_bar_height); |
| mRoot.setVisibility(View.INVISIBLE); |
| mRoot.addOnLayoutChangeListener((v, left, top, right, bottom, oldLeft, oldTop, oldRight, |
| oldBottom) -> mExpansionCallback.onLayout()); |
| mRoot.setAccessibilityPaneTitle(mKeyguardView.getAccessibilityTitleForCurrentMode()); |
| |
| final WindowInsets rootInsets = mRoot.getRootWindowInsets(); |
| if (rootInsets != null) { |
| mRoot.dispatchApplyWindowInsets(rootInsets); |
| } |
| } |
| |
| protected void removeView() { |
| if (mRoot != null && mRoot.getParent() == mContainer) { |
| mContainer.removeView(mRoot); |
| mRoot = null; |
| } |
| } |
| |
| public boolean onBackPressed() { |
| return mKeyguardView != null && mKeyguardView.handleBackKey(); |
| } |
| |
| /** |
| * @return True if and only if the security method should be shown before showing the |
| * notifications on Keyguard, like SIM PIN/PUK. |
| */ |
| public boolean needsFullscreenBouncer() { |
| ensureView(); |
| if (mKeyguardView != null) { |
| SecurityMode mode = mKeyguardView.getSecurityMode(); |
| return mode == SecurityMode.SimPin || mode == SecurityMode.SimPuk; |
| } |
| return false; |
| } |
| |
| /** |
| * Like {@link #needsFullscreenBouncer}, but uses the currently visible security method, which |
| * makes this method much faster. |
| */ |
| public boolean isFullscreenBouncer() { |
| if (mKeyguardView != null) { |
| SecurityMode mode = mKeyguardView.getCurrentSecurityMode(); |
| return mode == SecurityMode.SimPin || mode == SecurityMode.SimPuk; |
| } |
| return false; |
| } |
| |
| /** |
| * WARNING: This method might cause Binder calls. |
| */ |
| public boolean isSecure() { |
| return mKeyguardView == null || mKeyguardView.getSecurityMode() != SecurityMode.None; |
| } |
| |
| public boolean shouldDismissOnMenuPressed() { |
| return mKeyguardView.shouldEnableMenuKey(); |
| } |
| |
| public boolean interceptMediaKey(KeyEvent event) { |
| ensureView(); |
| return mKeyguardView.interceptMediaKey(event); |
| } |
| |
| public void notifyKeyguardAuthenticated(boolean strongAuth) { |
| ensureView(); |
| mKeyguardView.finish(strongAuth, KeyguardUpdateMonitor.getCurrentUser()); |
| } |
| |
| public void dump(PrintWriter pw) { |
| pw.println("KeyguardBouncer"); |
| pw.println(" isShowing(): " + isShowing()); |
| pw.println(" mStatusBarHeight: " + mStatusBarHeight); |
| pw.println(" mExpansion: " + mExpansion); |
| pw.println(" mKeyguardView; " + mKeyguardView); |
| pw.println(" mShowingSoon: " + mKeyguardView); |
| pw.println(" mBouncerPromptReason: " + mBouncerPromptReason); |
| pw.println(" mIsAnimatingAway: " + mIsAnimatingAway); |
| } |
| |
| public interface BouncerExpansionCallback { |
| void onFullyShown(); |
| void onStartingToHide(); |
| void onFullyHidden(); |
| void onLayout(); |
| } |
| } |