The heads up now have a margin on top and don't stick to the edge

Bug: 21337754
Change-Id: I199bc0732df62eadc2458db12a7c1059da988020

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

@@ -21,6 +21,7 @@ import android.view.MotionEvent;
 import android.view.ViewConfiguration;
 
 import com.android.systemui.Gefingerpoken;
+import com.android.systemui.R;
 import com.android.systemui.statusbar.ExpandableNotificationRow;
 import com.android.systemui.statusbar.ExpandableView;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
@@ -42,6 +43,7 @@ public class HeadsUpTouchHelper implements Gefingerpoken {
     private boolean mCollapseSnoozes;
     private NotificationPanelView mPanel;
     private ExpandableNotificationRow mPickedChild;
+    private final int mNotificationsTopPadding;
 
     public HeadsUpTouchHelper(HeadsUpManager headsUpManager,
             NotificationStackScrollLayout stackScroller,
@@ -52,6 +54,8 @@ public class HeadsUpTouchHelper implements Gefingerpoken {
         Context context = stackScroller.getContext();
         final ViewConfiguration configuration = ViewConfiguration.get(context);
         mTouchSlop = configuration.getScaledTouchSlop();
+        mNotificationsTopPadding = context.getResources()
+                .getDimensionPixelSize(R.dimen.notifications_top_padding);
     }
 
     public boolean isTrackingHeadsUp() {
@@ -76,6 +80,10 @@ public class HeadsUpTouchHelper implements Gefingerpoken {
                 mInitialTouchX = x;
                 setTrackingHeadsUp(false);
                 ExpandableView child = mStackScroller.getChildAtRawPosition(x, y);
+                if (child == null && y < mNotificationsTopPadding) {
+                    // We should also allow drags from the margin above the heads up
+                    child = mStackScroller.getChildAtRawPosition(x, y + mNotificationsTopPadding);
+                }
                 mTouchingHeadsUpView = false;
                 if (child instanceof ExpandableNotificationRow) {
                     mPickedChild = (ExpandableNotificationRow) child;
@@ -102,7 +110,8 @@ public class HeadsUpTouchHelper implements Gefingerpoken {
                     mInitialTouchX = x;
                     mInitialTouchY = y;
                     int expandedHeight = mPickedChild.getActualHeight();
-                    mPanel.startExpandMotion(x, y, true /* startTracking */, expandedHeight);
+                    mPanel.startExpandMotion(x, y, true /* startTracking */, expandedHeight
+                            + mNotificationsTopPadding);
                     mHeadsUpManager.unpinAll();
                     return true;
                 }

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

@@ -190,6 +190,7 @@ public class NotificationPanelView extends PanelView implements
     private int mOldLayoutDirection;
     private HeadsUpTouchHelper mHeadsUpTouchHelper;
     private boolean mIsExpansionFromHeadsUp;
+    private boolean mListenForHeadsUp;
     private int mNavigationBarBottomHeight;
     private boolean mExpandingFromHeadsUp;
     private boolean mCollapsedOnDown;
@@ -649,6 +650,7 @@ public class NotificationPanelView extends PanelView implements
             mQsTouchAboveFalsingThreshold = mQsFullyExpanded;
             mDozingOnDown = isDozing();
             mCollapsedOnDown = isFullyCollapsed();
+            mListenForHeadsUp = mCollapsedOnDown && mHeadsUpManager.hasPinnedHeadsUp();
         }
     }
 
@@ -709,6 +711,12 @@ public class NotificationPanelView extends PanelView implements
             return false;
         }
         initDownStates(event);
+        if (mListenForHeadsUp && !mHeadsUpTouchHelper.isTrackingHeadsUp()
+                && mHeadsUpTouchHelper.onInterceptTouchEvent(event)) {
+            mIsExpansionFromHeadsUp = true;
+            MetricsLogger.count(mContext, COUNTER_PANEL_OPEN, 1);
+            MetricsLogger.count(mContext, COUNTER_PANEL_OPEN_PEEK, 1);
+        }
         if ((!mIsExpanding || mHintAnimationRunning)
                 && !mQsExpanded
                 && mStatusBar.getBarState() != StatusBarState.SHADE) {

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

@@ -58,6 +58,7 @@ public abstract class PanelView extends FrameLayout {
     private float mHintDistance;
     private int mEdgeTapAreaWidth;
     private float mInitialOffsetOnTouch;
+    private boolean mCollapsedAndHeadsUpOnDown;
     private float mExpandedFraction = 0;
     protected float mExpandedHeight = 0;
     private boolean mPanelClosedOnDown;
@@ -258,6 +259,8 @@ public abstract class PanelView extends FrameLayout {
                 mMotionAborted = false;
                 mPeekTouching = mPanelClosedOnDown;
                 mTouchAboveFalsingThreshold = false;
+                mCollapsedAndHeadsUpOnDown = isFullyCollapsed()
+                        && mHeadsUpManager.hasPinnedHeadsUp();
                 if (mVelocityTracker == null) {
                     initVelocityTracker();
                 }
@@ -270,7 +273,7 @@ public abstract class PanelView extends FrameLayout {
                             || mPeekPending || mPeekAnimator != null;
                     onTrackingStarted();
                 }
-                if (isFullyCollapsed()) {
+                if (isFullyCollapsed() && !mHeadsUpManager.hasPinnedHeadsUp()) {
                     schedulePeek();
                 }
                 break;
@@ -302,7 +305,7 @@ public abstract class PanelView extends FrameLayout {
                         && (Math.abs(h) > Math.abs(x - mInitialTouchX)
                                 || mIgnoreXTouchSlop)) {
                     mTouchSlopExceeded = true;
-                    if (mGestureWaitForTouchSlop && !mTracking) {
+                    if (mGestureWaitForTouchSlop && !mTracking && !mCollapsedAndHeadsUpOnDown) {
                         if (!mJustPeeked && mInitialOffsetOnTouch != 0f) {
                             startExpandMotion(x, y, false /* startTracking */, mExpandedHeight);
                             h = 0;
@@ -477,6 +480,7 @@ public abstract class PanelView extends FrameLayout {
                 mJustPeeked = false;
                 mMotionAborted = false;
                 mPanelClosedOnDown = isFullyCollapsed();
+                mCollapsedAndHeadsUpOnDown = false;
                 mHasLayoutedSinceDown = false;
                 mUpdateFlingOnLayout = false;
                 mTouchAboveFalsingThreshold = false;

packages/SystemUI/src/com/android/systemui/statusbar/policy/HeadsUpManager.java

@@ -81,6 +81,7 @@ public class HeadsUpManager implements ViewTreeObserver.OnComputeInternalInsetsL
 
     private final View mStatusBarWindowView;
     private final int mStatusBarHeight;
+    private final int mNotificationsTopPadding;
     private PhoneStatusBar mBar;
     private int mSnoozeLengthMs;
     private ContentObserver mSettingsObserver;
@@ -128,6 +129,8 @@ public class HeadsUpManager implements ViewTreeObserver.OnComputeInternalInsetsL
         mStatusBarWindowView = statusBarWindowView;
         mStatusBarHeight = resources.getDimensionPixelSize(
                 com.android.internal.R.dimen.status_bar_height);
+        mNotificationsTopPadding = context.getResources()
+                .getDimensionPixelSize(R.dimen.notifications_top_padding);
     }
 
     private void updateTouchableRegionListener() {
@@ -379,7 +382,7 @@ public class HeadsUpManager implements ViewTreeObserver.OnComputeInternalInsetsL
             }
 
             info.setTouchableInsets(ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION);
-            info.touchableRegion.set(minX, minY, maxX, maxY);
+            info.touchableRegion.set(minX, minY, maxX, maxY + mNotificationsTopPadding);
         } else if (mHeadsUpGoingAway || mWaitingOnCollapseWhenGoingAway) {
             info.setTouchableInsets(ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION);
             info.touchableRegion.set(0, 0, mStatusBarWindowView.getWidth(), mStatusBarHeight);

packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollAlgorithm.java

@@ -64,6 +64,7 @@ public class StackScrollAlgorithm {
     private int mTopStackTotalSize;
     private int mPaddingBetweenElementsDimmed;
     private int mPaddingBetweenElementsNormal;
+    private int mNotificationsTopPadding;
     private int mBottomStackSlowDownLength;
     private int mTopStackSlowDownLength;
     private int mCollapseSecondCardPadding;
@@ -104,6 +105,8 @@ public class StackScrollAlgorithm {
                 .getDimensionPixelSize(R.dimen.notification_padding_dimmed);
         mPaddingBetweenElementsNormal = context.getResources()
                 .getDimensionPixelSize(R.dimen.notification_padding);
+        mNotificationsTopPadding = context.getResources()
+                .getDimensionPixelSize(R.dimen.notifications_top_padding);
         mCollapsedSize = context.getResources()
                 .getDimensionPixelSize(R.dimen.notification_min_height);
         mMaxNotificationHeight = context.getResources()
@@ -518,7 +521,8 @@ public class StackScrollAlgorithm {
                         bottomPosition);
             }
             if (row.isPinned()) {
-                childState.yTranslation = Math.max(childState.yTranslation, 0);
+                childState.yTranslation = Math.max(childState.yTranslation,
+                        mNotificationsTopPadding);
                 childState.height = row.getHeadsUpHeight();
                 if (!isTopEntry) {
                     // Ensure that a headsUp doesn't vertically extend further than the heads-up at