Added mouse wheel support for notifications (11e33237) · Commits · e / os / android_frameworks_base

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

+34 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ import android.util.FloatProperty;
		import android.util.Log;
		import android.util.Pair;
		import android.util.Property;
		import android.view.InputDevice;
		import android.view.MotionEvent;
		import android.view.VelocityTracker;
		import android.view.View;
		@@ -1226,6 +1227,39 @@ public class NotificationStackScrollLayout extends ViewGroup
		downEvent.recycle();
		}

		@Override
		public boolean onGenericMotionEvent(MotionEvent event) {
		if (!isScrollingEnabled() \|\| !mIsExpanded \|\| mSwipingInProgress \|\| mExpandingNotification
		\|\| mDisallowScrollingInThisMotion) {
		return false;
		}
		if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
		switch (event.getAction()) {
		case MotionEvent.ACTION_SCROLL: {
		if (!mIsBeingDragged) {
		final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL);
		if (vscroll != 0) {
		final int delta = (int) (vscroll * getVerticalScrollFactor());
		final int range = getScrollRange();
		int oldScrollY = mOwnScrollY;
		int newScrollY = oldScrollY - delta;
		if (newScrollY < 0) {
		newScrollY = 0;
		} else if (newScrollY > range) {
		newScrollY = range;
		}
		if (newScrollY != oldScrollY) {
		customScrollTo(newScrollY);
		return true;
		}
		}
		}
		}
		}
		}
		return super.onGenericMotionEvent(event);
		}

		private boolean onScrollTouch(MotionEvent ev) {
		if (!isScrollingEnabled()) {
		return false;