Merge "Revert "Reduce CascadingMenuPopup's reliance on internal ListView state"" (1aba36d7) · Commits · e / os / android_frameworks_base

core/java/android/widget/DropDownListView.java

+17 −0

Original line number	Diff line number	Diff line
		@@ -159,6 +159,23 @@ public class DropDownListView extends ListView {
		return super.onHoverEvent(ev);
		}

		@Override
		public boolean onTouchEvent(MotionEvent event) {
		final int x = (int) event.getX();
		final int y = (int) event.getY();
		final int position = pointToPosition(x, y);
		if (position == INVALID_POSITION) {
		return super.onTouchEvent(event);
		}

		if (position != mSelectedPosition) {
		setSelectedPositionInt(position);
		setNextSelectedPositionInt(position);
		}

		return super.onTouchEvent(event);
		}

		/**
		* Handles forwarded events.
		*

core/java/android/widget/MenuItemHoverListener.java

+1 −20

Original line number	Diff line number	Diff line
		@@ -2,8 +2,6 @@ package android.widget;

		import com.android.internal.view.menu.MenuBuilder;

		import android.annotation.NonNull;

		/**
		* An interface notified when a menu item is hovered. Useful for cases when hover should trigger
		* some behavior at a higher level, like managing the opening and closing of submenus.
		@@ -11,22 +9,5 @@ import android.annotation.NonNull;
		* @hide
		*/
		public interface MenuItemHoverListener {
		/**
		* Called when hover exits a menu item.
		* <p>
		* If hover is moving to another item, this method will be called before
		* {@link #onItemHoverEnter(MenuBuilder, int)} for the newly-hovered item.
		*
		* @param menu the item's parent menu
		* @param position the position of the item within the menu
		*/
		void onItemHoverExit(@NonNull MenuBuilder menu, int position);

		/**
		* Called when hover enters a menu item.
		*
		* @param menu the item's parent menu
		* @param position the position of the item within the menu
		*/
		void onItemHoverEnter(@NonNull MenuBuilder menu, int position);
		public void onItemHovered(MenuBuilder menu, int position);
		}

core/java/android/widget/MenuPopupWindow.java

+21 −32

Original line number	Diff line number	Diff line
		@@ -16,7 +16,6 @@

		package android.widget;

		import android.annotation.NonNull;
		import android.content.Context;
		import android.content.res.Configuration;
		import android.content.res.Resources;
		@@ -73,18 +72,10 @@ public class MenuPopupWindow extends ListPopupWindow implements MenuItemHoverLis
		}

		@Override
		public void onItemHoverEnter(@NonNull MenuBuilder menu, int position) {
		public void onItemHovered(MenuBuilder menu, int position) {
		// Forward up the chain
		if (mHoverListener != null) {
		mHoverListener.onItemHoverEnter(menu, position);
		}
		}

		@Override
		public void onItemHoverExit(@NonNull MenuBuilder menu, int position) {
		// Forward up the chain
		if (mHoverListener != null) {
		mHoverListener.onItemHoverExit(menu, position);
		mHoverListener.onItemHovered(menu, position);
		}
		}

		@@ -97,8 +88,6 @@ public class MenuPopupWindow extends ListPopupWindow implements MenuItemHoverLis

		private MenuItemHoverListener mHoverListener;

		private int mPreviouslyHoveredPosition = INVALID_POSITION;

		public MenuDropDownListView(Context context, boolean hijackFocus) {
		super(context, hijackFocus);

		@@ -146,17 +135,25 @@ public class MenuPopupWindow extends ListPopupWindow implements MenuItemHoverLis

		@Override
		public boolean onHoverEvent(MotionEvent ev) {
		final int position;
		if (ev.getAction() == MotionEvent.ACTION_HOVER_EXIT) {
		position = INVALID_POSITION;
		} else {
		position = pointToPosition((int) ev.getX(), (int) ev.getY());
		boolean dispatchHover = false;
		final int position = pointToPosition((int) ev.getX(), (int) ev.getY());

		final int action = ev.getActionMasked();
		if (action == MotionEvent.ACTION_HOVER_ENTER
		\|\| action == MotionEvent.ACTION_HOVER_MOVE) {
		if (position != INVALID_POSITION && position != mSelectedPosition) {
		final View hoveredItem = getChildAt(position - getFirstVisiblePosition());
		if (hoveredItem.isEnabled()) {
		dispatchHover = true;
		}
		}
		}

		boolean superVal = super.onHoverEvent(ev);

		// Dispatch any changes in hovered position to the listener.
		if (mHoverListener != null && mPreviouslyHoveredPosition != position) {
		final ListAdapter adapter = getAdapter();
		final MenuAdapter menuAdapter;
		if (dispatchHover && mHoverListener != null) {
		ListAdapter adapter = getAdapter();
		MenuAdapter menuAdapter;
		if (adapter instanceof HeaderViewListAdapter) {
		menuAdapter = (MenuAdapter) ((HeaderViewListAdapter) adapter)
		.getWrappedAdapter();
		@@ -164,18 +161,10 @@ public class MenuPopupWindow extends ListPopupWindow implements MenuItemHoverLis
		menuAdapter = (MenuAdapter) adapter;
		}

		final MenuBuilder menu = menuAdapter.getAdapterMenu();
		if (mPreviouslyHoveredPosition != INVALID_POSITION) {
		mHoverListener.onItemHoverExit(menu, mPreviouslyHoveredPosition);
		mHoverListener.onItemHovered(menuAdapter.getAdapterMenu(), position);
		}
		if (position != INVALID_POSITION) {
		mHoverListener.onItemHoverEnter(menu, position);
		}
		}

		mPreviouslyHoveredPosition = position;

		return super.onHoverEvent(ev);
		return superVal;
		}
		}
		}
		No newline at end of file