| /* |
| * 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.PropertyValuesHolder; |
| import android.animation.ValueAnimator; |
| import android.content.Context; |
| import android.graphics.Color; |
| import android.view.View; |
| import android.view.ViewTreeObserver; |
| import android.view.animation.AnimationUtils; |
| import android.view.animation.DecelerateInterpolator; |
| import android.view.animation.Interpolator; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.statusbar.BackDropView; |
| import com.android.systemui.statusbar.ExpandableNotificationRow; |
| import com.android.systemui.statusbar.NotificationData; |
| import com.android.systemui.statusbar.ScrimView; |
| import com.android.systemui.statusbar.policy.HeadsUpManager; |
| import com.android.systemui.statusbar.stack.StackStateAnimator; |
| |
| /** |
| * 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, |
| HeadsUpManager.OnHeadsUpChangedListener { |
| public static final long ANIMATION_DURATION = 220; |
| |
| private static final float SCRIM_BEHIND_ALPHA = 0.62f; |
| private static final float SCRIM_BEHIND_ALPHA_KEYGUARD = 0.55f; |
| private static final float SCRIM_BEHIND_ALPHA_UNLOCKING = 0.2f; |
| private static final float SCRIM_IN_FRONT_ALPHA = 0.75f; |
| private static final int TAG_KEY_ANIM = R.id.scrim; |
| private static final int TAG_HUN_START_ALPHA = R.id.hun_scrim_alpha_start; |
| private static final int TAG_HUN_END_ALPHA = R.id.hun_scrim_alpha_end; |
| |
| private final ScrimView mScrimBehind; |
| private final ScrimView mScrimInFront; |
| private final UnlockMethodCache mUnlockMethodCache; |
| private final View mHeadsUpScrim; |
| |
| private boolean mKeyguardShowing; |
| private float mFraction; |
| |
| private boolean mDarkenWhileDragging; |
| private boolean mBouncerShowing; |
| private boolean mAnimateChange; |
| private boolean mUpdatePending; |
| private boolean mExpanding; |
| private boolean mAnimateKeyguardFadingOut; |
| private long mDurationOverride = -1; |
| private long mAnimationDelay; |
| private Runnable mOnAnimationFinished; |
| private boolean mAnimationStarted; |
| private final Interpolator mInterpolator = new DecelerateInterpolator(); |
| private final Interpolator mLinearOutSlowInInterpolator; |
| private BackDropView mBackDropView; |
| private boolean mScrimSrcEnabled; |
| private boolean mDozing; |
| private float mDozeInFrontAlpha; |
| private float mDozeBehindAlpha; |
| private float mCurrentInFrontAlpha; |
| private float mCurrentBehindAlpha; |
| private float mCurrentHeadsUpAlpha = 1; |
| private int mPinnedHeadsUpCount; |
| private float mTopHeadsUpDragAmount; |
| private View mDraggedHeadsUpView; |
| |
| public ScrimController(ScrimView scrimBehind, ScrimView scrimInFront, View headsUpScrim, |
| boolean scrimSrcEnabled) { |
| mScrimBehind = scrimBehind; |
| mScrimInFront = scrimInFront; |
| mHeadsUpScrim = headsUpScrim; |
| final Context context = scrimBehind.getContext(); |
| mUnlockMethodCache = UnlockMethodCache.getInstance(context); |
| mLinearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context, |
| android.R.interpolator.linear_out_slow_in); |
| mScrimSrcEnabled = scrimSrcEnabled; |
| updateHeadsUpScrim(false); |
| } |
| |
| public void setKeyguardShowing(boolean showing) { |
| mKeyguardShowing = showing; |
| scheduleUpdate(); |
| } |
| |
| public void onTrackingStarted() { |
| mExpanding = true; |
| mDarkenWhileDragging = !mUnlockMethodCache.isCurrentlyInsecure(); |
| } |
| |
| public void onExpandingFinished() { |
| mExpanding = false; |
| } |
| |
| public void setPanelExpansion(float fraction) { |
| if (mFraction != fraction) { |
| mFraction = fraction; |
| scheduleUpdate(); |
| } |
| } |
| |
| public void setBouncerShowing(boolean showing) { |
| mBouncerShowing = showing; |
| mAnimateChange = !mExpanding; |
| scheduleUpdate(); |
| } |
| |
| public void animateKeyguardFadingOut(long delay, long duration, Runnable onAnimationFinished) { |
| mAnimateKeyguardFadingOut = true; |
| mDurationOverride = duration; |
| mAnimationDelay = delay; |
| mAnimateChange = true; |
| mOnAnimationFinished = onAnimationFinished; |
| scheduleUpdate(); |
| } |
| |
| public void animateGoingToFullShade(long delay, long duration) { |
| mDurationOverride = duration; |
| mAnimationDelay = delay; |
| mAnimateChange = true; |
| scheduleUpdate(); |
| } |
| |
| public void setDozing(boolean dozing) { |
| mDozing = dozing; |
| scheduleUpdate(); |
| } |
| |
| public void setDozeInFrontAlpha(float alpha) { |
| mDozeInFrontAlpha = alpha; |
| updateScrimColor(mScrimInFront); |
| } |
| |
| public void setDozeBehindAlpha(float alpha) { |
| mDozeBehindAlpha = alpha; |
| updateScrimColor(mScrimBehind); |
| } |
| |
| public float getDozeBehindAlpha() { |
| return mDozeBehindAlpha; |
| } |
| |
| public float getDozeInFrontAlpha() { |
| return mDozeInFrontAlpha; |
| } |
| |
| private void scheduleUpdate() { |
| if (mUpdatePending) return; |
| |
| // Make sure that a frame gets scheduled. |
| mScrimBehind.invalidate(); |
| mScrimBehind.getViewTreeObserver().addOnPreDrawListener(this); |
| mUpdatePending = true; |
| } |
| |
| private void updateScrims() { |
| if (mAnimateKeyguardFadingOut) { |
| setScrimInFrontColor(0f); |
| setScrimBehindColor(0f); |
| } else if (!mKeyguardShowing && !mBouncerShowing) { |
| updateScrimNormal(); |
| setScrimInFrontColor(0); |
| } else { |
| updateScrimKeyguard(); |
| } |
| mAnimateChange = false; |
| } |
| |
| private void updateScrimKeyguard() { |
| if (mExpanding && mDarkenWhileDragging) { |
| float behindFraction = Math.max(0, Math.min(mFraction, 1)); |
| float fraction = 1 - behindFraction; |
| fraction = (float) Math.pow(fraction, 0.8f); |
| behindFraction = (float) Math.pow(behindFraction, 0.8f); |
| setScrimInFrontColor(fraction * SCRIM_IN_FRONT_ALPHA); |
| setScrimBehindColor(behindFraction * SCRIM_BEHIND_ALPHA_KEYGUARD); |
| } else if (mBouncerShowing) { |
| setScrimInFrontColor(SCRIM_IN_FRONT_ALPHA); |
| setScrimBehindColor(0f); |
| } else { |
| float fraction = Math.max(0, Math.min(mFraction, 1)); |
| setScrimInFrontColor(0f); |
| setScrimBehindColor(fraction |
| * (SCRIM_BEHIND_ALPHA_KEYGUARD - SCRIM_BEHIND_ALPHA_UNLOCKING) |
| + SCRIM_BEHIND_ALPHA_UNLOCKING); |
| } |
| } |
| |
| private void updateScrimNormal() { |
| float frac = mFraction; |
| // let's start this 20% of the way down the screen |
| frac = frac * 1.2f - 0.2f; |
| if (frac <= 0) { |
| setScrimBehindColor(0); |
| } else { |
| // woo, special effects |
| final float k = (float)(1f-0.5f*(1f-Math.cos(3.14159f * Math.pow(1f-frac, 2f)))); |
| setScrimBehindColor(k * SCRIM_BEHIND_ALPHA); |
| } |
| } |
| |
| private void setScrimBehindColor(float alpha) { |
| setScrimColor(mScrimBehind, alpha); |
| } |
| |
| private void setScrimInFrontColor(float alpha) { |
| setScrimColor(mScrimInFront, alpha); |
| if (alpha == 0f) { |
| mScrimInFront.setClickable(false); |
| } else { |
| |
| // Eat touch events (unless dozing). |
| mScrimInFront.setClickable(!mDozing); |
| } |
| } |
| |
| private void setScrimColor(View scrim, float alpha) { |
| Object runningAnim = scrim.getTag(TAG_KEY_ANIM); |
| if (runningAnim instanceof ValueAnimator) { |
| ((ValueAnimator) runningAnim).cancel(); |
| scrim.setTag(TAG_KEY_ANIM, null); |
| } |
| if (mAnimateChange) { |
| startScrimAnimation(scrim, alpha); |
| } else { |
| setCurrentScrimAlpha(scrim, alpha); |
| updateScrimColor(scrim); |
| } |
| } |
| |
| private float getDozeAlpha(View scrim) { |
| return scrim == mScrimBehind ? mDozeBehindAlpha : mDozeInFrontAlpha; |
| } |
| |
| private float getCurrentScrimAlpha(View scrim) { |
| return scrim == mScrimBehind ? mCurrentBehindAlpha |
| : scrim == mScrimInFront ? mCurrentInFrontAlpha |
| : mCurrentHeadsUpAlpha; |
| } |
| |
| private void setCurrentScrimAlpha(View scrim, float alpha) { |
| if (scrim == mScrimBehind) { |
| mCurrentBehindAlpha = alpha; |
| } else if (scrim == mScrimInFront) { |
| mCurrentInFrontAlpha = alpha; |
| } else { |
| alpha = Math.max(0.0f, Math.min(1.0f, alpha)); |
| mCurrentHeadsUpAlpha = alpha; |
| } |
| } |
| |
| private void updateScrimColor(View scrim) { |
| float alpha1 = getCurrentScrimAlpha(scrim); |
| if (scrim instanceof ScrimView) { |
| float alpha2 = getDozeAlpha(scrim); |
| float alpha = 1 - (1 - alpha1) * (1 - alpha2); |
| ((ScrimView) scrim).setScrimColor(Color.argb((int) (alpha * 255), 0, 0, 0)); |
| } else { |
| scrim.setAlpha(alpha1); |
| } |
| } |
| |
| private void startScrimAnimation(final View scrim, float target) { |
| float current = getCurrentScrimAlpha(scrim); |
| ValueAnimator anim = ValueAnimator.ofFloat(current, target); |
| anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator animation) { |
| float alpha = (float) animation.getAnimatedValue(); |
| setCurrentScrimAlpha(scrim, alpha); |
| updateScrimColor(scrim); |
| } |
| }); |
| anim.setInterpolator(getInterpolator()); |
| anim.setStartDelay(mAnimationDelay); |
| anim.setDuration(mDurationOverride != -1 ? mDurationOverride : ANIMATION_DURATION); |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| if (mOnAnimationFinished != null) { |
| mOnAnimationFinished.run(); |
| mOnAnimationFinished = null; |
| } |
| scrim.setTag(TAG_KEY_ANIM, null); |
| } |
| }); |
| anim.start(); |
| scrim.setTag(TAG_KEY_ANIM, anim); |
| mAnimationStarted = true; |
| } |
| |
| private Interpolator getInterpolator() { |
| return mAnimateKeyguardFadingOut ? mLinearOutSlowInInterpolator : mInterpolator; |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| mScrimBehind.getViewTreeObserver().removeOnPreDrawListener(this); |
| mUpdatePending = false; |
| updateScrims(); |
| mAnimateKeyguardFadingOut = false; |
| mDurationOverride = -1; |
| mAnimationDelay = 0; |
| |
| // Make sure that we always call the listener even if we didn't start an animation. |
| if (!mAnimationStarted && mOnAnimationFinished != null) { |
| mOnAnimationFinished.run(); |
| mOnAnimationFinished = null; |
| } |
| mAnimationStarted = false; |
| return true; |
| } |
| |
| public void setBackDropView(BackDropView backDropView) { |
| mBackDropView = backDropView; |
| mBackDropView.setOnVisibilityChangedRunnable(new Runnable() { |
| @Override |
| public void run() { |
| updateScrimBehindDrawingMode(); |
| } |
| }); |
| updateScrimBehindDrawingMode(); |
| } |
| |
| private void updateScrimBehindDrawingMode() { |
| boolean asSrc = mBackDropView.getVisibility() != View.VISIBLE && mScrimSrcEnabled; |
| mScrimBehind.setDrawAsSrc(asSrc); |
| } |
| |
| @Override |
| public void onHeadsUpPinnedModeChanged(boolean inPinnedMode) { |
| } |
| |
| @Override |
| public void onHeadsUpPinned(ExpandableNotificationRow headsUp) { |
| mPinnedHeadsUpCount++; |
| updateHeadsUpScrim(true); |
| } |
| |
| @Override |
| public void onHeadsUpUnPinned(ExpandableNotificationRow headsUp) { |
| mPinnedHeadsUpCount--; |
| if (headsUp == mDraggedHeadsUpView) { |
| mDraggedHeadsUpView = null; |
| mTopHeadsUpDragAmount = 0.0f; |
| } |
| updateHeadsUpScrim(true); |
| } |
| |
| @Override |
| public void onHeadsUpStateChanged(NotificationData.Entry entry, boolean isHeadsUp) { |
| } |
| |
| private void updateHeadsUpScrim(boolean animate) { |
| float alpha = calculateHeadsUpAlpha(); |
| ValueAnimator previousAnimator = StackStateAnimator.getChildTag(mHeadsUpScrim, |
| TAG_KEY_ANIM); |
| float animEndValue = -1; |
| if (previousAnimator != null) { |
| if (animate || alpha == mCurrentHeadsUpAlpha) { |
| previousAnimator.cancel(); |
| } |
| animEndValue = StackStateAnimator.getChildTag(mHeadsUpScrim, TAG_HUN_START_ALPHA); |
| } |
| if (alpha != mCurrentHeadsUpAlpha && alpha != animEndValue) { |
| if (animate) { |
| startScrimAnimation(mHeadsUpScrim, alpha); |
| mHeadsUpScrim.setTag(TAG_HUN_START_ALPHA, mCurrentHeadsUpAlpha); |
| mHeadsUpScrim.setTag(TAG_HUN_END_ALPHA, alpha); |
| } else { |
| if (previousAnimator != null) { |
| float previousStartValue = StackStateAnimator.getChildTag(mHeadsUpScrim, |
| TAG_HUN_START_ALPHA); |
| float previousEndValue = StackStateAnimator.getChildTag(mHeadsUpScrim, |
| TAG_HUN_END_ALPHA); |
| // we need to increase all animation keyframes of the previous animator by the |
| // relative change to the end value |
| PropertyValuesHolder[] values = previousAnimator.getValues(); |
| float relativeDiff = alpha - previousEndValue; |
| float newStartValue = previousStartValue + relativeDiff; |
| values[0].setFloatValues(newStartValue, alpha); |
| mHeadsUpScrim.setTag(TAG_HUN_START_ALPHA, newStartValue); |
| mHeadsUpScrim.setTag(TAG_HUN_END_ALPHA, alpha); |
| previousAnimator.setCurrentPlayTime(previousAnimator.getCurrentPlayTime()); |
| } else { |
| // update the alpha directly |
| setCurrentScrimAlpha(mHeadsUpScrim, alpha); |
| updateScrimColor(mHeadsUpScrim); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Set the amount the current top heads up view is dragged. The range is from 0 to 1 and 0 means |
| * the heads up is in its resting space and 1 means it's fully dragged out. |
| * |
| * @param draggedHeadsUpView the dragged view |
| * @param topHeadsUpDragAmount how far is it dragged |
| */ |
| public void setTopHeadsUpDragAmount(View draggedHeadsUpView, float topHeadsUpDragAmount) { |
| mTopHeadsUpDragAmount = topHeadsUpDragAmount; |
| mDraggedHeadsUpView = draggedHeadsUpView; |
| updateHeadsUpScrim(false); |
| } |
| |
| private float calculateHeadsUpAlpha() { |
| if (mPinnedHeadsUpCount >= 2) { |
| return 1.0f; |
| } else if (mPinnedHeadsUpCount == 0) { |
| return 0.0f; |
| } else { |
| return 1.0f - mTopHeadsUpDragAmount; |
| } |
| } |
| } |