Revert "Centralized quick step/scrub/switch logic (1/2)"
This reverts commit b06ae3bf131b0bd0ded398d3a06974a6a9d78a50.
Reason for revert: b/74726495
Bug: 74726495
Change-Id: I4bce8df13f9fa9e1b420382f7a96f9855510196f
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java
new file mode 100644
index 0000000..00aff53
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java
@@ -0,0 +1,446 @@
+/*
+ * Copyright (C) 2018 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.AnimatorSet;
+import android.animation.ArgbEvaluator;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
+import android.animation.ValueAnimator.AnimatorUpdateListener;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.os.Handler;
+import android.os.RemoteException;
+import android.util.Log;
+import android.util.Slog;
+import android.view.GestureDetector;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
+import android.view.WindowManagerGlobal;
+import android.view.animation.DecelerateInterpolator;
+import android.view.animation.Interpolator;
+import android.support.annotation.DimenRes;
+import com.android.systemui.Dependency;
+import com.android.systemui.OverviewProxyService;
+import com.android.systemui.R;
+import com.android.systemui.plugins.statusbar.phone.NavGesture.GestureHelper;
+import com.android.systemui.shared.recents.IOverviewProxy;
+import com.android.systemui.shared.recents.utilities.Utilities;
+
+import static android.view.WindowManagerPolicyConstants.NAV_BAR_LEFT;
+import static android.view.WindowManagerPolicyConstants.NAV_BAR_BOTTOM;
+import static com.android.systemui.OverviewProxyService.DEBUG_OVERVIEW_PROXY;
+import static com.android.systemui.OverviewProxyService.TAG_OPS;
+import static com.android.systemui.shared.system.NavigationBarCompat.HIT_TARGET_HOME;
+
+/**
+ * Class to detect gestures on the navigation bar and implement quick scrub and switch.
+ */
+public class QuickScrubController extends GestureDetector.SimpleOnGestureListener implements
+ GestureHelper {
+
+ private static final String TAG = "QuickScrubController";
+ private static final int QUICK_SWITCH_FLING_VELOCITY = 0;
+ private static final int ANIM_DURATION_MS = 200;
+ private static final long LONG_PRESS_DELAY_MS = 225;
+
+ /**
+ * For quick step, set a damping value to allow the button to stick closer its origin position
+ * when dragging before quick scrub is active.
+ */
+ private static final int SWITCH_STICKINESS = 4;
+
+ private NavigationBarView mNavigationBarView;
+ private GestureDetector mGestureDetector;
+
+ private boolean mDraggingActive;
+ private boolean mQuickScrubActive;
+ private boolean mAllowQuickSwitch;
+ private boolean mRecentsAnimationStarted;
+ private float mDownOffset;
+ private float mTranslation;
+ private int mTouchDownX;
+ private int mTouchDownY;
+ private boolean mDragPositive;
+ private boolean mIsVertical;
+ private boolean mIsRTL;
+ private float mTrackAlpha;
+ private int mLightTrackColor;
+ private int mDarkTrackColor;
+ private float mDarkIntensity;
+ private View mHomeButtonView;
+
+ private final Handler mHandler = new Handler();
+ private final Interpolator mQuickScrubEndInterpolator = new DecelerateInterpolator();
+ private final Rect mTrackRect = new Rect();
+ private final Paint mTrackPaint = new Paint();
+ private final int mScrollTouchSlop;
+ private final OverviewProxyService mOverviewEventSender;
+ private final int mTrackThickness;
+ private final int mTrackPadding;
+ private final ValueAnimator mTrackAnimator;
+ private final ValueAnimator mButtonAnimator;
+ private final AnimatorSet mQuickScrubEndAnimator;
+ private final Context mContext;
+ private final ArgbEvaluator mTrackColorEvaluator = new ArgbEvaluator();
+
+ private final AnimatorUpdateListener mTrackAnimatorListener = valueAnimator -> {
+ mTrackAlpha = (float) valueAnimator.getAnimatedValue();
+ mNavigationBarView.invalidate();
+ };
+
+ private final AnimatorUpdateListener mButtonTranslationListener = animator -> {
+ int pos = (int) animator.getAnimatedValue();
+ if (!mQuickScrubActive) {
+ pos = mDragPositive ? Math.min((int) mTranslation, pos) : Math.max((int) mTranslation, pos);
+ }
+ if (mIsVertical) {
+ mHomeButtonView.setTranslationY(pos);
+ } else {
+ mHomeButtonView.setTranslationX(pos);
+ }
+ };
+
+ private AnimatorListenerAdapter mQuickScrubEndListener = new AnimatorListenerAdapter() {
+ @Override
+ public void onAnimationEnd(Animator animation) {
+ mNavigationBarView.getHomeButton().setClickable(true);
+ mQuickScrubActive = false;
+ mTranslation = 0;
+ mQuickScrubEndAnimator.setCurrentPlayTime(mQuickScrubEndAnimator.getDuration());
+ mHomeButtonView = null;
+ }
+ };
+
+ private Runnable mLongPressRunnable = this::startQuickScrub;
+
+ private final GestureDetector.SimpleOnGestureListener mGestureListener =
+ new GestureDetector.SimpleOnGestureListener() {
+ @Override
+ public boolean onFling(MotionEvent e1, MotionEvent e2, float velX, float velY) {
+ if (!mNavigationBarView.isQuickScrubEnabled() || mQuickScrubActive
+ || !mAllowQuickSwitch
+ || mNavigationBarView.getDownHitTarget() != HIT_TARGET_HOME) {
+ return false;
+ }
+ float velocityX = mIsRTL ? -velX : velX;
+ float absVelY = Math.abs(velY);
+ final boolean isValidFling = velocityX > QUICK_SWITCH_FLING_VELOCITY &&
+ mIsVertical ? (absVelY > velocityX) : (velocityX > absVelY);
+ if (isValidFling) {
+ mDraggingActive = false;
+ animateEnd();
+ mHandler.removeCallbacks(mLongPressRunnable);
+ try {
+ final IOverviewProxy overviewProxy = mOverviewEventSender.getProxy();
+ overviewProxy.onQuickSwitch();
+ if (DEBUG_OVERVIEW_PROXY) {
+ Log.d(TAG_OPS, "Quick Switch");
+ }
+ } catch (RemoteException e) {
+ Log.e(TAG, "Failed to send start of quick switch.", e);
+ }
+ return true;
+ }
+ return false;
+ }
+ };
+
+ public QuickScrubController(Context context) {
+ mContext = context;
+ mScrollTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
+ mOverviewEventSender = Dependency.get(OverviewProxyService.class);
+ mGestureDetector = new GestureDetector(mContext, mGestureListener);
+ mTrackThickness = getDimensionPixelSize(mContext, R.dimen.nav_quick_scrub_track_thickness);
+ mTrackPadding = getDimensionPixelSize(mContext, R.dimen.nav_quick_scrub_track_edge_padding);
+ mTrackPaint.setAlpha(0);
+
+ mTrackAnimator = ObjectAnimator.ofFloat();
+ mTrackAnimator.addUpdateListener(mTrackAnimatorListener);
+ mTrackAnimator.setFloatValues(0);
+ mButtonAnimator = ObjectAnimator.ofInt();
+ mButtonAnimator.addUpdateListener(mButtonTranslationListener);
+ mButtonAnimator.setIntValues(0);
+ mQuickScrubEndAnimator = new AnimatorSet();
+ mQuickScrubEndAnimator.playTogether(mTrackAnimator, mButtonAnimator);
+ mQuickScrubEndAnimator.setDuration(ANIM_DURATION_MS);
+ mQuickScrubEndAnimator.addListener(mQuickScrubEndListener);
+ mQuickScrubEndAnimator.setInterpolator(mQuickScrubEndInterpolator);
+ }
+
+ public void setComponents(NavigationBarView navigationBarView) {
+ mNavigationBarView = navigationBarView;
+ }
+
+ /**
+ * @return true if we want to intercept touch events for quick scrub/switch and prevent proxying
+ * the event to the overview service.
+ */
+ @Override
+ public boolean onInterceptTouchEvent(MotionEvent event) {
+ final ButtonDispatcher homeButton = mNavigationBarView.getHomeButton();
+ if (!mNavigationBarView.isQuickScrubEnabled()) {
+ homeButton.setDelayTouchFeedback(false);
+ return false;
+ }
+
+ return handleTouchEvent(event);
+ }
+
+ /**
+ * @return true if we want to handle touch events for quick scrub/switch and prevent proxying
+ * the event to the overview service.
+ */
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ return handleTouchEvent(event);
+ }
+
+ private boolean handleTouchEvent(MotionEvent event) {
+ final IOverviewProxy overviewProxy = mOverviewEventSender.getProxy();
+ final ButtonDispatcher homeButton = mNavigationBarView.getHomeButton();
+ if (mGestureDetector.onTouchEvent(event)) {
+ // If the fling has been handled on UP, then skip proxying the UP
+ return true;
+ }
+ int action = event.getAction();
+ switch (action & MotionEvent.ACTION_MASK) {
+ case MotionEvent.ACTION_DOWN: {
+ int x = (int) event.getX();
+ int y = (int) event.getY();
+ // End any existing quickscrub animations before starting the new transition
+ if (mHomeButtonView != null) {
+ mQuickScrubEndAnimator.end();
+ }
+ mHomeButtonView = homeButton.getCurrentView();
+ if (mNavigationBarView.isQuickScrubEnabled()
+ && mNavigationBarView.getDownHitTarget() == HIT_TARGET_HOME) {
+ mTouchDownX = x;
+ mTouchDownY = y;
+ homeButton.setDelayTouchFeedback(true);
+ mHandler.postDelayed(mLongPressRunnable, LONG_PRESS_DELAY_MS);
+ } else {
+ homeButton.setDelayTouchFeedback(false);
+ mTouchDownX = mTouchDownY = -1;
+ }
+ mAllowQuickSwitch = true;
+ break;
+ }
+ case MotionEvent.ACTION_MOVE: {
+ if (mTouchDownX != -1) {
+ int x = (int) event.getX();
+ int y = (int) event.getY();
+ int xDiff = Math.abs(x - mTouchDownX);
+ int yDiff = Math.abs(y - mTouchDownY);
+ boolean exceededTouchSlopX = xDiff > mScrollTouchSlop && xDiff > yDiff;
+ boolean exceededTouchSlopY = yDiff > mScrollTouchSlop && yDiff > xDiff;
+ boolean exceededTouchSlop, exceededPerpendicularTouchSlop;
+ int pos, touchDown, offset, trackSize;
+
+ if (mIsVertical) {
+ exceededTouchSlop = exceededTouchSlopY;
+ exceededPerpendicularTouchSlop = exceededTouchSlopX;
+ pos = y;
+ touchDown = mTouchDownY;
+ offset = pos - mTrackRect.top;
+ trackSize = mTrackRect.height();
+ } else {
+ exceededTouchSlop = exceededTouchSlopX;
+ exceededPerpendicularTouchSlop = exceededTouchSlopY;
+ pos = x;
+ touchDown = mTouchDownX;
+ offset = pos - mTrackRect.left;
+ trackSize = mTrackRect.width();
+ }
+ // Do not start scrubbing when dragging in the perpendicular direction if we
+ // haven't already started quickscrub
+ if (!mDraggingActive && !mQuickScrubActive && exceededPerpendicularTouchSlop) {
+ mHandler.removeCallbacksAndMessages(null);
+ return false;
+ }
+ if (!mDragPositive) {
+ offset -= mIsVertical ? mTrackRect.height() : mTrackRect.width();
+ }
+
+ // Control the button movement
+ if (!mDraggingActive && exceededTouchSlop && !mRecentsAnimationStarted) {
+ boolean allowDrag = !mDragPositive
+ ? offset < 0 && pos < touchDown : offset >= 0 && pos > touchDown;
+ if (allowDrag) {
+ mDownOffset = offset;
+ homeButton.setClickable(false);
+ mDraggingActive = true;
+ }
+ }
+ if (mDraggingActive && (mDragPositive && offset >= 0
+ || !mDragPositive && offset <= 0)) {
+ float scrubFraction =
+ Utilities.clamp(Math.abs(offset) * 1f / trackSize, 0, 1);
+ mTranslation = !mDragPositive
+ ? Utilities.clamp(offset - mDownOffset, -trackSize, 0)
+ : Utilities.clamp(offset - mDownOffset, 0, trackSize);
+ if (mQuickScrubActive) {
+ try {
+ mOverviewEventSender.getProxy().onQuickScrubProgress(scrubFraction);
+ if (DEBUG_OVERVIEW_PROXY) {
+ Log.d(TAG_OPS, "Quick Scrub Progress:" + scrubFraction);
+ }
+ } catch (RemoteException e) {
+ Log.e(TAG, "Failed to send progress of quick scrub.", e);
+ }
+ } else {
+ mTranslation /= SWITCH_STICKINESS;
+ }
+ if (mIsVertical) {
+ mHomeButtonView.setTranslationY(mTranslation);
+ } else {
+ mHomeButtonView.setTranslationX(mTranslation);
+ }
+ }
+ }
+ break;
+ }
+ case MotionEvent.ACTION_CANCEL:
+ case MotionEvent.ACTION_UP:
+ endQuickScrub(true /* animate */);
+ break;
+ }
+ return mDraggingActive || mQuickScrubActive;
+ }
+
+ @Override
+ public void onDraw(Canvas canvas) {
+ int color = (int) mTrackColorEvaluator.evaluate(mDarkIntensity, mLightTrackColor,
+ mDarkTrackColor);
+ mTrackPaint.setColor(color);
+ mTrackPaint.setAlpha((int) (mTrackPaint.getAlpha() * mTrackAlpha));
+ canvas.drawRect(mTrackRect, mTrackPaint);
+ }
+
+ @Override
+ public void onLayout(boolean changed, int left, int top, int right, int bottom) {
+ final int width = right - left;
+ final int height = bottom - top;
+ final int x1, x2, y1, y2;
+ if (mIsVertical) {
+ x1 = (width - mTrackThickness) / 2;
+ x2 = x1 + mTrackThickness;
+ y1 = mDragPositive ? height / 2 : mTrackPadding;
+ y2 = y1 + height / 2 - mTrackPadding;
+ } else {
+ y1 = (height - mTrackThickness) / 2;
+ y2 = y1 + mTrackThickness;
+ x1 = mDragPositive ? width / 2 : mTrackPadding;
+ x2 = x1 + width / 2 - mTrackPadding;
+ }
+ mTrackRect.set(x1, y1, x2, y2);
+ }
+
+ @Override
+ public void onDarkIntensityChange(float intensity) {
+ mDarkIntensity = intensity;
+ mNavigationBarView.invalidate();
+ }
+
+ @Override
+ public void setBarState(boolean isVertical, boolean isRTL) {
+ final boolean changed = (mIsVertical != isVertical) || (mIsRTL != isRTL);
+ if (changed) {
+ // End quickscrub if the state changes mid-transition
+ endQuickScrub(false /* animate */);
+ }
+ mIsVertical = isVertical;
+ mIsRTL = isRTL;
+ try {
+ int navbarPos = WindowManagerGlobal.getWindowManagerService().getNavBarPosition();
+ mDragPositive = navbarPos == NAV_BAR_LEFT || navbarPos == NAV_BAR_BOTTOM;
+ if (isRTL) {
+ mDragPositive = !mDragPositive;
+ }
+ } catch (RemoteException e) {
+ Slog.e(TAG, "Failed to get nav bar position.", e);
+ }
+ }
+
+ private void startQuickScrub() {
+ if (!mQuickScrubActive && mDraggingActive) {
+ mQuickScrubActive = true;
+ mLightTrackColor = mContext.getColor(R.color.quick_step_track_background_light);
+ mDarkTrackColor = mContext.getColor(R.color.quick_step_track_background_dark);
+ mTrackAnimator.setFloatValues(0, 1);
+ mTrackAnimator.start();
+ try {
+ mOverviewEventSender.getProxy().onQuickScrubStart();
+ if (DEBUG_OVERVIEW_PROXY) {
+ Log.d(TAG_OPS, "Quick Scrub Start");
+ }
+ } catch (RemoteException e) {
+ Log.e(TAG, "Failed to send start of quick scrub.", e);
+ }
+ } else {
+ // After long press do not allow quick scrub/switch
+ mTouchDownX = -1;
+ }
+ }
+
+ private void endQuickScrub(boolean animate) {
+ mHandler.removeCallbacks(mLongPressRunnable);
+ if (mDraggingActive || mQuickScrubActive) {
+ animateEnd();
+ try {
+ mOverviewEventSender.getProxy().onQuickScrubEnd();
+ if (DEBUG_OVERVIEW_PROXY) {
+ Log.d(TAG_OPS, "Quick Scrub End");
+ }
+ } catch (RemoteException e) {
+ Log.e(TAG, "Failed to send end of quick scrub.", e);
+ }
+ }
+ if (mHomeButtonView != null && !animate) {
+ mQuickScrubEndAnimator.end();
+ }
+ mDraggingActive = false;
+ }
+
+ public void setRecentsAnimationStarted(boolean started) {
+ mRecentsAnimationStarted = started;
+ if (started) {
+ cancelQuickSwitch();
+ }
+ }
+
+ public void cancelQuickSwitch() {
+ mAllowQuickSwitch = false;
+ mHandler.removeCallbacks(mLongPressRunnable);
+ }
+
+ private void animateEnd() {
+ mButtonAnimator.setIntValues((int) mTranslation, 0);
+ mTrackAnimator.setFloatValues(mTrackAlpha, 0);
+ mQuickScrubEndAnimator.setCurrentPlayTime(0);
+ mQuickScrubEndAnimator.start();
+ }
+
+ private int getDimensionPixelSize(Context context, @DimenRes int resId) {
+ return context.getResources().getDimensionPixelSize(resId);
+ }
+}