| /* |
| * 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 android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ValueAnimator; |
| import android.app.AlarmManager; |
| import android.app.WallpaperManager; |
| import android.content.Context; |
| import android.graphics.Color; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.os.Handler; |
| import android.os.Trace; |
| import android.util.Log; |
| import android.util.MathUtils; |
| import android.view.Choreographer; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewTreeObserver; |
| import android.view.animation.DecelerateInterpolator; |
| import android.view.animation.Interpolator; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.colorextraction.ColorExtractor; |
| import com.android.internal.colorextraction.ColorExtractor.GradientColors; |
| import com.android.internal.colorextraction.ColorExtractor.OnColorsChangedListener; |
| import com.android.internal.graphics.ColorUtils; |
| import com.android.keyguard.KeyguardUpdateMonitor; |
| import com.android.systemui.Dependency; |
| import com.android.systemui.Dumpable; |
| import com.android.systemui.R; |
| import com.android.systemui.colorextraction.SysuiColorExtractor; |
| import com.android.systemui.statusbar.ExpandableNotificationRow; |
| import com.android.systemui.statusbar.NotificationData; |
| import com.android.systemui.statusbar.ScrimView; |
| import com.android.systemui.statusbar.stack.ViewState; |
| import com.android.systemui.util.AlarmTimeout; |
| import com.android.systemui.util.wakelock.DelayedWakeLock; |
| import com.android.systemui.util.wakelock.WakeLock; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.function.Consumer; |
| |
| /** |
| * Controls both the scrim behind the notifications and in front of the notifications (when a |
| * security method gets shown). |
| */ |
| public class ScrimController implements ViewTreeObserver.OnPreDrawListener, OnColorsChangedListener, |
| Dumpable { |
| |
| private static final String TAG = "ScrimController"; |
| private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| |
| /** |
| * General scrim animation duration. |
| */ |
| public static final long ANIMATION_DURATION = 220; |
| /** |
| * Longer duration, currently only used when going to AOD. |
| */ |
| public static final long ANIMATION_DURATION_LONG = 1000; |
| /** |
| * When both scrims have 0 alpha. |
| */ |
| public static final int VISIBILITY_FULLY_TRANSPARENT = 0; |
| /** |
| * When scrims aren't transparent (alpha 0) but also not opaque (alpha 1.) |
| */ |
| public static final int VISIBILITY_SEMI_TRANSPARENT = 1; |
| /** |
| * When at least 1 scrim is fully opaque (alpha set to 1.) |
| */ |
| public static final int VISIBILITY_FULLY_OPAQUE = 2; |
| /** |
| * Default alpha value for most scrims. |
| */ |
| public static final float GRADIENT_SCRIM_ALPHA = 0.70f; |
| /** |
| * A scrim varies its opacity based on a busyness factor, for example |
| * how many notifications are currently visible. |
| */ |
| public static final float GRADIENT_SCRIM_ALPHA_BUSY = 0.70f; |
| /** |
| * The most common scrim, the one under the keyguard. |
| */ |
| protected static final float SCRIM_BEHIND_ALPHA_KEYGUARD = GRADIENT_SCRIM_ALPHA; |
| |
| static final int TAG_KEY_ANIM = R.id.scrim; |
| private static final int TAG_START_ALPHA = R.id.scrim_alpha_start; |
| private static final int TAG_END_ALPHA = R.id.scrim_alpha_end; |
| private static final float NOT_INITIALIZED = -1; |
| |
| private ScrimState mState = ScrimState.UNINITIALIZED; |
| private final Context mContext; |
| protected final ScrimView mScrimBehind; |
| protected final ScrimView mScrimInFront; |
| private final UnlockMethodCache mUnlockMethodCache; |
| private final KeyguardUpdateMonitor mKeyguardUpdateMonitor; |
| private final DozeParameters mDozeParameters; |
| private final AlarmTimeout mTimeTicker; |
| |
| private final SysuiColorExtractor mColorExtractor; |
| private GradientColors mLockColors; |
| private GradientColors mSystemColors; |
| private boolean mNeedsDrawableColorUpdate; |
| |
| protected float mScrimBehindAlpha; |
| protected float mScrimBehindAlphaResValue; |
| protected float mScrimBehindAlphaKeyguard = SCRIM_BEHIND_ALPHA_KEYGUARD; |
| |
| // Assuming the shade is expanded during initialization |
| private float mExpansionFraction = 1f; |
| |
| private boolean mDarkenWhileDragging; |
| private boolean mExpansionAffectsAlpha = true; |
| protected boolean mAnimateChange; |
| private boolean mUpdatePending; |
| private boolean mTracking; |
| protected long mAnimationDuration = -1; |
| private long mAnimationDelay; |
| private Runnable mOnAnimationFinished; |
| private boolean mDeferFinishedListener; |
| private final Interpolator mInterpolator = new DecelerateInterpolator(); |
| private float mCurrentInFrontAlpha = NOT_INITIALIZED; |
| private float mCurrentBehindAlpha = NOT_INITIALIZED; |
| private int mCurrentInFrontTint; |
| private int mCurrentBehindTint; |
| private boolean mWallpaperVisibilityTimedOut; |
| private int mScrimsVisibility; |
| private final Consumer<GradientColors> mScrimInFrontColorListener; |
| private final Consumer<Float> mScrimBehindAlphaListener; |
| private final Consumer<Integer> mScrimVisibleListener; |
| private boolean mBlankScreen; |
| private boolean mScreenBlankingCallbackCalled; |
| private Callback mCallback; |
| private boolean mWallpaperSupportsAmbientMode; |
| private boolean mScreenOn; |
| private float mNotificationDensity; |
| |
| // Scrim blanking callbacks |
| private Runnable mPendingFrameCallback; |
| private Runnable mBlankingTransitionRunnable; |
| |
| private final WakeLock mWakeLock; |
| private boolean mWakeLockHeld; |
| private boolean mKeyguardOccluded; |
| |
| public ScrimController(ScrimView scrimBehind, ScrimView scrimInFront, |
| Consumer<Float> scrimBehindAlphaListener, |
| Consumer<GradientColors> scrimInFrontColorListener, |
| Consumer<Integer> scrimVisibleListener, DozeParameters dozeParameters, |
| AlarmManager alarmManager) { |
| mScrimBehind = scrimBehind; |
| mScrimInFront = scrimInFront; |
| mScrimBehindAlphaListener = scrimBehindAlphaListener; |
| mScrimInFrontColorListener = scrimInFrontColorListener; |
| mScrimVisibleListener = scrimVisibleListener; |
| mContext = scrimBehind.getContext(); |
| mUnlockMethodCache = UnlockMethodCache.getInstance(mContext); |
| mDarkenWhileDragging = !mUnlockMethodCache.canSkipBouncer(); |
| mKeyguardUpdateMonitor = KeyguardUpdateMonitor.getInstance(mContext); |
| mScrimBehindAlphaResValue = mContext.getResources().getFloat(R.dimen.scrim_behind_alpha); |
| mTimeTicker = new AlarmTimeout(alarmManager, this::onHideWallpaperTimeout, |
| "hide_aod_wallpaper", new Handler()); |
| mWakeLock = createWakeLock(); |
| // Scrim alpha is initially set to the value on the resource but might be changed |
| // to make sure that text on top of it is legible. |
| mScrimBehindAlpha = mScrimBehindAlphaResValue; |
| mDozeParameters = dozeParameters; |
| |
| mColorExtractor = Dependency.get(SysuiColorExtractor.class); |
| mColorExtractor.addOnColorsChangedListener(this); |
| mLockColors = mColorExtractor.getColors(WallpaperManager.FLAG_LOCK, |
| ColorExtractor.TYPE_DARK, true /* ignoreVisibility */); |
| mSystemColors = mColorExtractor.getColors(WallpaperManager.FLAG_SYSTEM, |
| ColorExtractor.TYPE_DARK, true /* ignoreVisibility */); |
| mNeedsDrawableColorUpdate = true; |
| |
| final ScrimState[] states = ScrimState.values(); |
| for (int i = 0; i < states.length; i++) { |
| states[i].init(mScrimInFront, mScrimBehind, mDozeParameters); |
| states[i].setScrimBehindAlphaKeyguard(mScrimBehindAlphaKeyguard); |
| } |
| mState = ScrimState.UNINITIALIZED; |
| |
| mScrimBehind.setDefaultFocusHighlightEnabled(false); |
| mScrimInFront.setDefaultFocusHighlightEnabled(false); |
| |
| updateScrims(); |
| } |
| |
| public void transitionTo(ScrimState state) { |
| transitionTo(state, null); |
| } |
| |
| public void transitionTo(ScrimState state, Callback callback) { |
| if (state == mState) { |
| // Call the callback anyway, unless it's already enqueued |
| if (callback != null && mCallback != callback) { |
| callback.onFinished(); |
| } |
| return; |
| } else if (DEBUG) { |
| Log.d(TAG, "State changed to: " + state); |
| } |
| |
| if (state == ScrimState.UNINITIALIZED) { |
| throw new IllegalArgumentException("Cannot change to UNINITIALIZED."); |
| } |
| |
| final ScrimState oldState = mState; |
| mState = state; |
| Trace.traceCounter(Trace.TRACE_TAG_APP, "scrim_state", mState.getIndex()); |
| |
| if (mCallback != null) { |
| mCallback.onCancelled(); |
| } |
| mCallback = callback; |
| |
| state.prepare(oldState); |
| mScreenBlankingCallbackCalled = false; |
| mAnimationDelay = 0; |
| mBlankScreen = state.getBlanksScreen(); |
| mAnimateChange = state.getAnimateChange(); |
| mAnimationDuration = state.getAnimationDuration(); |
| mCurrentInFrontTint = state.getFrontTint(); |
| mCurrentBehindTint = state.getBehindTint(); |
| mCurrentInFrontAlpha = state.getFrontAlpha(); |
| mCurrentBehindAlpha = state.getBehindAlpha(mNotificationDensity); |
| applyExpansionToAlpha(); |
| |
| // Scrim might acquire focus when user is navigating with a D-pad or a keyboard. |
| // We need to disable focus otherwise AOD would end up with a gray overlay. |
| mScrimInFront.setFocusable(!state.isLowPowerState()); |
| mScrimBehind.setFocusable(!state.isLowPowerState()); |
| |
| // Cancel blanking transitions that were pending before we requested a new state |
| if (mPendingFrameCallback != null) { |
| mScrimBehind.removeCallbacks(mPendingFrameCallback); |
| mPendingFrameCallback = null; |
| } |
| if (getHandler().hasCallbacks(mBlankingTransitionRunnable)) { |
| getHandler().removeCallbacks(mBlankingTransitionRunnable); |
| mBlankingTransitionRunnable = null; |
| } |
| |
| // Showing/hiding the keyguard means that scrim colors have to be switched, not necessary |
| // to do the same when you're just showing the brightness mirror. |
| mNeedsDrawableColorUpdate = state != ScrimState.BRIGHTNESS_MIRROR; |
| |
| // The device might sleep if it's entering AOD, we need to make sure that |
| // the animation plays properly until the last frame. |
| // It's important to avoid holding the wakelock unless necessary because |
| // WakeLock#aqcuire will trigger an IPC and will cause jank. |
| if (mState.isLowPowerState()) { |
| holdWakeLock(); |
| } |
| |
| // AOD wallpapers should fade away after a while |
| if (mWallpaperSupportsAmbientMode && mDozeParameters.getAlwaysOn() |
| && mState == ScrimState.AOD) { |
| if (!mWallpaperVisibilityTimedOut) { |
| mTimeTicker.schedule(mDozeParameters.getWallpaperAodDuration(), |
| AlarmTimeout.MODE_IGNORE_IF_SCHEDULED); |
| } |
| // Do not re-schedule timeout when pulsing, let's save some extra battery. |
| } else if (mState != ScrimState.PULSING) { |
| mTimeTicker.cancel(); |
| mWallpaperVisibilityTimedOut = false; |
| } |
| |
| if (mKeyguardUpdateMonitor.needsSlowUnlockTransition() && mState == ScrimState.UNLOCKED) { |
| // In case the user isn't unlocked, make sure to delay a bit because the system is hosed |
| // with too many things at this case, in order to not skip the initial frames. |
| mScrimInFront.postOnAnimationDelayed(this::scheduleUpdate, 16); |
| mAnimationDelay = StatusBar.FADE_KEYGUARD_START_DELAY; |
| } else if ((!mDozeParameters.getAlwaysOn() && oldState == ScrimState.AOD) |
| || (mState == ScrimState.AOD && !mDozeParameters.getDisplayNeedsBlanking())) { |
| // Scheduling a frame isn't enough when: |
| // • Leaving doze and we need to modify scrim color immediately |
| // • ColorFade will not kick-in and scrim cannot wait for pre-draw. |
| onPreDraw(); |
| } else { |
| scheduleUpdate(); |
| } |
| } |
| |
| public ScrimState getState() { |
| return mState; |
| } |
| |
| protected void setScrimBehindValues(float scrimBehindAlphaKeyguard) { |
| mScrimBehindAlphaKeyguard = scrimBehindAlphaKeyguard; |
| ScrimState[] states = ScrimState.values(); |
| for (int i = 0; i < states.length; i++) { |
| states[i].setScrimBehindAlphaKeyguard(scrimBehindAlphaKeyguard); |
| } |
| scheduleUpdate(); |
| } |
| |
| public void onTrackingStarted() { |
| mTracking = true; |
| mDarkenWhileDragging = !mUnlockMethodCache.canSkipBouncer(); |
| } |
| |
| public void onExpandingFinished() { |
| mTracking = false; |
| } |
| |
| @VisibleForTesting |
| protected void onHideWallpaperTimeout() { |
| if (mState != ScrimState.AOD) { |
| return; |
| } |
| |
| holdWakeLock(); |
| mWallpaperVisibilityTimedOut = true; |
| mAnimateChange = true; |
| mAnimationDuration = mDozeParameters.getWallpaperFadeOutDuration(); |
| scheduleUpdate(); |
| } |
| |
| private void holdWakeLock() { |
| if (!mWakeLockHeld) { |
| if (mWakeLock != null) { |
| mWakeLockHeld = true; |
| mWakeLock.acquire(); |
| } else { |
| Log.w(TAG, "Cannot hold wake lock, it has not been set yet"); |
| } |
| } |
| } |
| |
| /** |
| * Current state of the shade expansion when pulling it from the top. |
| * This value is 1 when on top of the keyguard and goes to 0 as the user drags up. |
| * |
| * The expansion fraction is tied to the scrim opacity. |
| * |
| * @param fraction From 0 to 1 where 0 means collapsed and 1 expanded. |
| */ |
| public void setPanelExpansion(float fraction) { |
| if (mExpansionFraction != fraction) { |
| mExpansionFraction = fraction; |
| |
| final boolean keyguardOrUnlocked = mState == ScrimState.UNLOCKED |
| || mState == ScrimState.KEYGUARD; |
| if (!keyguardOrUnlocked || !mExpansionAffectsAlpha) { |
| return; |
| } |
| |
| applyExpansionToAlpha(); |
| |
| if (mUpdatePending) { |
| return; |
| } |
| |
| setOrAdaptCurrentAnimation(mScrimBehind); |
| setOrAdaptCurrentAnimation(mScrimInFront); |
| |
| mScrimBehindAlphaListener.accept(mScrimBehind.getViewAlpha()); |
| } |
| } |
| |
| private void setOrAdaptCurrentAnimation(View scrim) { |
| if (!isAnimating(scrim)) { |
| updateScrimColor(scrim, getCurrentScrimAlpha(scrim), getCurrentScrimTint(scrim)); |
| } else { |
| ValueAnimator previousAnimator = (ValueAnimator) scrim.getTag(TAG_KEY_ANIM); |
| float alpha = getCurrentScrimAlpha(scrim); |
| float previousEndValue = (Float) scrim.getTag(TAG_END_ALPHA); |
| float previousStartValue = (Float) scrim.getTag(TAG_START_ALPHA); |
| float relativeDiff = alpha - previousEndValue; |
| float newStartValue = previousStartValue + relativeDiff; |
| scrim.setTag(TAG_START_ALPHA, newStartValue); |
| scrim.setTag(TAG_END_ALPHA, alpha); |
| previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); |
| } |
| } |
| |
| private void applyExpansionToAlpha() { |
| if (!mExpansionAffectsAlpha) { |
| return; |
| } |
| |
| if (mState == ScrimState.UNLOCKED) { |
| // Darken scrim as you pull down the shade when unlocked |
| float behindFraction = getInterpolatedFraction(); |
| behindFraction = (float) Math.pow(behindFraction, 0.8f); |
| mCurrentBehindAlpha = behindFraction * GRADIENT_SCRIM_ALPHA_BUSY; |
| mCurrentInFrontAlpha = 0; |
| } else if (mState == ScrimState.KEYGUARD) { |
| // Either darken of make the scrim transparent when you |
| // pull down the shade |
| float interpolatedFract = getInterpolatedFraction(); |
| float alphaBehind = mState.getBehindAlpha(mNotificationDensity); |
| if (mDarkenWhileDragging) { |
| mCurrentBehindAlpha = MathUtils.lerp(GRADIENT_SCRIM_ALPHA_BUSY, alphaBehind, |
| interpolatedFract); |
| mCurrentInFrontAlpha = 0; |
| } else { |
| mCurrentBehindAlpha = MathUtils.lerp(0 /* start */, alphaBehind, |
| interpolatedFract); |
| mCurrentInFrontAlpha = 0; |
| } |
| } |
| } |
| |
| /** |
| * Keyguard and shade scrim opacity varies according to how many notifications are visible. |
| * @param notificationCount Number of visible notifications. |
| */ |
| public void setNotificationCount(int notificationCount) { |
| final float maxNotificationDensity = 3; |
| float notificationDensity = Math.min(notificationCount / maxNotificationDensity, 1f); |
| if (mNotificationDensity == notificationDensity) { |
| return; |
| } |
| mNotificationDensity = notificationDensity; |
| |
| if (mState == ScrimState.KEYGUARD) { |
| applyExpansionToAlpha(); |
| scheduleUpdate(); |
| } |
| } |
| |
| /** |
| * Sets the given drawable as the background of the scrim that shows up behind the |
| * notifications. |
| */ |
| public void setScrimBehindDrawable(Drawable drawable) { |
| mScrimBehind.setDrawable(drawable); |
| } |
| |
| protected void scheduleUpdate() { |
| if (mUpdatePending) return; |
| |
| // Make sure that a frame gets scheduled. |
| mScrimBehind.invalidate(); |
| mScrimBehind.getViewTreeObserver().addOnPreDrawListener(this); |
| mUpdatePending = true; |
| } |
| |
| protected void updateScrims() { |
| // Make sure we have the right gradients and their opacities will satisfy GAR. |
| if (mNeedsDrawableColorUpdate) { |
| mNeedsDrawableColorUpdate = false; |
| final GradientColors currentScrimColors; |
| if (mState == ScrimState.KEYGUARD || mState == ScrimState.BOUNCER_SCRIMMED |
| || mState == ScrimState.BOUNCER) { |
| // Always animate color changes if we're seeing the keyguard |
| mScrimInFront.setColors(mLockColors, true /* animated */); |
| mScrimBehind.setColors(mLockColors, true /* animated */); |
| currentScrimColors = mLockColors; |
| } else { |
| // Only animate scrim color if the scrim view is actually visible |
| boolean animateScrimInFront = mScrimInFront.getViewAlpha() != 0; |
| boolean animateScrimBehind = mScrimBehind.getViewAlpha() != 0; |
| mScrimInFront.setColors(mSystemColors, animateScrimInFront); |
| mScrimBehind.setColors(mSystemColors, animateScrimBehind); |
| currentScrimColors = mSystemColors; |
| } |
| |
| // Calculate minimum scrim opacity for white or black text. |
| int textColor = currentScrimColors.supportsDarkText() ? Color.BLACK : Color.WHITE; |
| int mainColor = currentScrimColors.getMainColor(); |
| float minOpacity = ColorUtils.calculateMinimumBackgroundAlpha(textColor, mainColor, |
| 4.5f /* minimumContrast */) / 255f; |
| mScrimBehindAlpha = Math.max(mScrimBehindAlphaResValue, minOpacity); |
| mScrimInFrontColorListener.accept(mScrimInFront.getColors()); |
| } |
| |
| // We want to override the back scrim opacity for the AOD state |
| // when it's time to fade the wallpaper away. |
| boolean aodWallpaperTimeout = mState == ScrimState.AOD && mWallpaperVisibilityTimedOut; |
| // We also want to hide FLAG_SHOW_WHEN_LOCKED activities under the scrim. |
| boolean occludedKeyguard = (mState == ScrimState.PULSING || mState == ScrimState.AOD) |
| && mKeyguardOccluded; |
| if (aodWallpaperTimeout || occludedKeyguard) { |
| mCurrentBehindAlpha = 1; |
| } |
| |
| setScrimInFrontAlpha(mCurrentInFrontAlpha); |
| setScrimBehindAlpha(mCurrentBehindAlpha); |
| |
| dispatchScrimsVisible(); |
| } |
| |
| private void dispatchScrimsVisible() { |
| final int currentScrimVisibility; |
| if (mScrimInFront.getViewAlpha() == 1 || mScrimBehind.getViewAlpha() == 1) { |
| currentScrimVisibility = VISIBILITY_FULLY_OPAQUE; |
| } else if (mScrimInFront.getViewAlpha() == 0 && mScrimBehind.getViewAlpha() == 0) { |
| currentScrimVisibility = VISIBILITY_FULLY_TRANSPARENT; |
| } else { |
| currentScrimVisibility = VISIBILITY_SEMI_TRANSPARENT; |
| } |
| |
| if (mScrimsVisibility != currentScrimVisibility) { |
| mScrimsVisibility = currentScrimVisibility; |
| mScrimVisibleListener.accept(currentScrimVisibility); |
| } |
| } |
| |
| private float getInterpolatedFraction() { |
| float frac = mExpansionFraction; |
| // let's start this 20% of the way down the screen |
| frac = frac * 1.2f - 0.2f; |
| if (frac <= 0) { |
| return 0; |
| } else { |
| // woo, special effects |
| return (float)(1f-0.5f*(1f-Math.cos(3.14159f * Math.pow(1f-frac, 2f)))); |
| } |
| } |
| |
| private void setScrimBehindAlpha(float alpha) { |
| setScrimAlpha(mScrimBehind, alpha); |
| } |
| |
| private void setScrimInFrontAlpha(float alpha) { |
| setScrimAlpha(mScrimInFront, alpha); |
| } |
| |
| private void setScrimAlpha(ScrimView scrim, float alpha) { |
| if (alpha == 0f) { |
| scrim.setClickable(false); |
| } else { |
| // Eat touch events (unless dozing or pulsing). |
| scrim.setClickable(mState != ScrimState.AOD && mState != ScrimState.PULSING); |
| } |
| updateScrim(scrim, alpha); |
| } |
| |
| private void updateScrimColor(View scrim, float alpha, int tint) { |
| alpha = Math.max(0, Math.min(1.0f, alpha)); |
| if (scrim instanceof ScrimView) { |
| ScrimView scrimView = (ScrimView) scrim; |
| |
| Trace.traceCounter(Trace.TRACE_TAG_APP, |
| scrim == mScrimInFront ? "front_scrim_alpha" : "back_scrim_alpha", |
| (int) (alpha * 255)); |
| |
| Trace.traceCounter(Trace.TRACE_TAG_APP, |
| scrim == mScrimInFront ? "front_scrim_tint" : "back_scrim_tint", |
| Color.alpha(tint)); |
| |
| scrimView.setTint(tint); |
| scrimView.setViewAlpha(alpha); |
| } else { |
| scrim.setAlpha(alpha); |
| } |
| dispatchScrimsVisible(); |
| } |
| |
| private void startScrimAnimation(final View scrim, float current) { |
| ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f); |
| final int initialScrimTint = scrim instanceof ScrimView ? ((ScrimView) scrim).getTint() : |
| Color.TRANSPARENT; |
| anim.addUpdateListener(animation -> { |
| final float startAlpha = (Float) scrim.getTag(TAG_START_ALPHA); |
| final float animAmount = (float) animation.getAnimatedValue(); |
| final int finalScrimTint = getCurrentScrimTint(scrim); |
| final float finalScrimAlpha = getCurrentScrimAlpha(scrim); |
| float alpha = MathUtils.lerp(startAlpha, finalScrimAlpha, animAmount); |
| alpha = MathUtils.constrain(alpha, 0f, 1f); |
| int tint = ColorUtils.blendARGB(initialScrimTint, finalScrimTint, animAmount); |
| updateScrimColor(scrim, alpha, tint); |
| dispatchScrimsVisible(); |
| }); |
| anim.setInterpolator(mInterpolator); |
| anim.setStartDelay(mAnimationDelay); |
| anim.setDuration(mAnimationDuration); |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| onFinished(); |
| |
| scrim.setTag(TAG_KEY_ANIM, null); |
| dispatchScrimsVisible(); |
| |
| if (!mDeferFinishedListener && mOnAnimationFinished != null) { |
| mOnAnimationFinished.run(); |
| mOnAnimationFinished = null; |
| } |
| } |
| }); |
| |
| // Cache alpha values because we might want to update this animator in the future if |
| // the user expands the panel while the animation is still running. |
| scrim.setTag(TAG_START_ALPHA, current); |
| scrim.setTag(TAG_END_ALPHA, getCurrentScrimAlpha(scrim)); |
| |
| scrim.setTag(TAG_KEY_ANIM, anim); |
| anim.start(); |
| } |
| |
| private float getCurrentScrimAlpha(View scrim) { |
| if (scrim == mScrimInFront) { |
| return mCurrentInFrontAlpha; |
| } else if (scrim == mScrimBehind) { |
| return mCurrentBehindAlpha; |
| } else { |
| throw new IllegalArgumentException("Unknown scrim view"); |
| } |
| } |
| |
| private int getCurrentScrimTint(View scrim) { |
| if (scrim == mScrimInFront) { |
| return mCurrentInFrontTint; |
| } else if (scrim == mScrimBehind) { |
| return mCurrentBehindTint; |
| } else { |
| throw new IllegalArgumentException("Unknown scrim view"); |
| } |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| mScrimBehind.getViewTreeObserver().removeOnPreDrawListener(this); |
| mUpdatePending = false; |
| if (mCallback != null) { |
| mCallback.onStart(); |
| } |
| updateScrims(); |
| if (mOnAnimationFinished != null && !isAnimating(mScrimInFront) |
| && !isAnimating(mScrimBehind)) { |
| mOnAnimationFinished.run(); |
| mOnAnimationFinished = null; |
| } |
| return true; |
| } |
| |
| private void onFinished() { |
| if (mWakeLockHeld) { |
| mWakeLock.release(); |
| mWakeLockHeld = false; |
| } |
| if (mCallback != null) { |
| mCallback.onFinished(); |
| mCallback = null; |
| } |
| // When unlocking with fingerprint, we'll fade the scrims from black to transparent. |
| // At the end of the animation we need to remove the tint. |
| if (mState == ScrimState.UNLOCKED) { |
| mCurrentInFrontTint = Color.TRANSPARENT; |
| mCurrentBehindTint = Color.TRANSPARENT; |
| } |
| } |
| |
| private boolean isAnimating(View scrim) { |
| return scrim.getTag(TAG_KEY_ANIM) != null; |
| } |
| |
| public void setDrawBehindAsSrc(boolean asSrc) { |
| mScrimBehind.setDrawAsSrc(asSrc); |
| } |
| |
| @VisibleForTesting |
| void setOnAnimationFinished(Runnable onAnimationFinished) { |
| mOnAnimationFinished = onAnimationFinished; |
| } |
| |
| private void updateScrim(ScrimView scrim, float alpha) { |
| final float currentAlpha = scrim.getViewAlpha(); |
| |
| ValueAnimator previousAnimator = ViewState.getChildTag(scrim, TAG_KEY_ANIM); |
| if (previousAnimator != null) { |
| if (mAnimateChange) { |
| // We are not done yet! Defer calling the finished listener. |
| mDeferFinishedListener = true; |
| } |
| // Previous animators should always be cancelled. Not doing so would cause |
| // overlap, especially on states that don't animate, leading to flickering, |
| // and in the worst case, an internal state that doesn't represent what |
| // transitionTo requested. |
| cancelAnimator(previousAnimator); |
| mDeferFinishedListener = false; |
| } |
| |
| if (mPendingFrameCallback != null) { |
| // Display is off and we're waiting. |
| return; |
| } else if (mBlankScreen) { |
| // Need to blank the display before continuing. |
| blankDisplay(); |
| return; |
| } else if (!mScreenBlankingCallbackCalled) { |
| // Not blanking the screen. Letting the callback know that we're ready |
| // to replace what was on the screen before. |
| if (mCallback != null) { |
| mCallback.onDisplayBlanked(); |
| mScreenBlankingCallbackCalled = true; |
| } |
| } |
| |
| if (scrim == mScrimBehind) { |
| mScrimBehindAlphaListener.accept(alpha); |
| } |
| |
| final boolean wantsAlphaUpdate = alpha != currentAlpha; |
| final boolean wantsTintUpdate = scrim.getTint() != getCurrentScrimTint(scrim); |
| |
| if (wantsAlphaUpdate || wantsTintUpdate) { |
| if (mAnimateChange) { |
| startScrimAnimation(scrim, currentAlpha); |
| } else { |
| // update the alpha directly |
| updateScrimColor(scrim, alpha, getCurrentScrimTint(scrim)); |
| onFinished(); |
| } |
| } else { |
| onFinished(); |
| } |
| } |
| |
| @VisibleForTesting |
| protected void cancelAnimator(ValueAnimator previousAnimator) { |
| if (previousAnimator != null) { |
| previousAnimator.cancel(); |
| } |
| } |
| |
| private void blankDisplay() { |
| updateScrimColor(mScrimInFront, 1, Color.BLACK); |
| |
| // Notify callback that the screen is completely black and we're |
| // ready to change the display power mode |
| mPendingFrameCallback = () -> { |
| if (mCallback != null) { |
| mCallback.onDisplayBlanked(); |
| mScreenBlankingCallbackCalled = true; |
| } |
| |
| mBlankingTransitionRunnable = () -> { |
| mBlankingTransitionRunnable = null; |
| mPendingFrameCallback = null; |
| mBlankScreen = false; |
| // Try again. |
| updateScrims(); |
| }; |
| |
| // Setting power states can happen after we push out the frame. Make sure we |
| // stay fully opaque until the power state request reaches the lower levels. |
| final int delay = mScreenOn ? 32 : 500; |
| if (DEBUG) { |
| Log.d(TAG, "Fading out scrims with delay: " + delay); |
| } |
| getHandler().postDelayed(mBlankingTransitionRunnable, delay); |
| }; |
| doOnTheNextFrame(mPendingFrameCallback); |
| } |
| |
| /** |
| * Executes a callback after the frame has hit the display. |
| * @param callback What to run. |
| */ |
| @VisibleForTesting |
| protected void doOnTheNextFrame(Runnable callback) { |
| // Just calling View#postOnAnimation isn't enough because the frame might not have reached |
| // the display yet. A timeout is the safest solution. |
| mScrimBehind.postOnAnimationDelayed(callback, 32 /* delayMillis */); |
| } |
| |
| @VisibleForTesting |
| protected Handler getHandler() { |
| return Handler.getMain(); |
| } |
| |
| public void setExcludedBackgroundArea(Rect area) { |
| mScrimBehind.setExcludedArea(area); |
| } |
| |
| public int getBackgroundColor() { |
| int color = mLockColors.getMainColor(); |
| return Color.argb((int) (mScrimBehind.getViewAlpha() * Color.alpha(color)), |
| Color.red(color), Color.green(color), Color.blue(color)); |
| } |
| |
| public void setScrimBehindChangeRunnable(Runnable changeRunnable) { |
| mScrimBehind.setChangeRunnable(changeRunnable); |
| } |
| |
| public void setCurrentUser(int currentUser) { |
| // Don't care in the base class. |
| } |
| |
| @Override |
| public void onColorsChanged(ColorExtractor colorExtractor, int which) { |
| if ((which & WallpaperManager.FLAG_LOCK) != 0) { |
| mLockColors = mColorExtractor.getColors(WallpaperManager.FLAG_LOCK, |
| ColorExtractor.TYPE_DARK, true /* ignoreVisibility */); |
| mNeedsDrawableColorUpdate = true; |
| scheduleUpdate(); |
| } |
| if ((which & WallpaperManager.FLAG_SYSTEM) != 0) { |
| mSystemColors = mColorExtractor.getColors(WallpaperManager.FLAG_SYSTEM, |
| ColorExtractor.TYPE_DARK, mState != ScrimState.UNLOCKED); |
| mNeedsDrawableColorUpdate = true; |
| scheduleUpdate(); |
| } |
| } |
| |
| @VisibleForTesting |
| protected WakeLock createWakeLock() { |
| return new DelayedWakeLock(getHandler(), |
| WakeLock.createPartial(mContext, "Scrims")); |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| pw.println(" ScrimController: "); |
| pw.print(" state: "); pw.println(mState); |
| pw.print(" frontScrim:"); pw.print(" viewAlpha="); pw.print(mScrimInFront.getViewAlpha()); |
| pw.print(" alpha="); pw.print(mCurrentInFrontAlpha); |
| pw.print(" tint=0x"); pw.println(Integer.toHexString(mScrimInFront.getTint())); |
| |
| pw.print(" backScrim:"); pw.print(" viewAlpha="); pw.print(mScrimBehind.getViewAlpha()); |
| pw.print(" alpha="); pw.print(mCurrentBehindAlpha); |
| pw.print(" tint=0x"); pw.println(Integer.toHexString(mScrimBehind.getTint())); |
| |
| pw.print(" mTracking="); pw.println(mTracking); |
| } |
| |
| public void setWallpaperSupportsAmbientMode(boolean wallpaperSupportsAmbientMode) { |
| mWallpaperSupportsAmbientMode = wallpaperSupportsAmbientMode; |
| ScrimState[] states = ScrimState.values(); |
| for (int i = 0; i < states.length; i++) { |
| states[i].setWallpaperSupportsAmbientMode(wallpaperSupportsAmbientMode); |
| } |
| } |
| |
| /** |
| * Interrupts blanking transitions once the display notifies that it's already on. |
| */ |
| public void onScreenTurnedOn() { |
| mScreenOn = true; |
| final Handler handler = getHandler(); |
| if (handler.hasCallbacks(mBlankingTransitionRunnable)) { |
| if (DEBUG) { |
| Log.d(TAG, "Shorter blanking because screen turned on. All good."); |
| } |
| handler.removeCallbacks(mBlankingTransitionRunnable); |
| mBlankingTransitionRunnable.run(); |
| } |
| } |
| |
| public void onScreenTurnedOff() { |
| mScreenOn = false; |
| } |
| |
| public void setExpansionAffectsAlpha(boolean expansionAffectsAlpha) { |
| mExpansionAffectsAlpha = expansionAffectsAlpha; |
| } |
| |
| public void setKeyguardOccluded(boolean keyguardOccluded) { |
| mKeyguardOccluded = keyguardOccluded; |
| } |
| |
| public interface Callback { |
| default void onStart() { |
| } |
| default void onDisplayBlanked() { |
| } |
| default void onFinished() { |
| } |
| default void onCancelled() { |
| } |
| } |
| } |
