Merge "Show tooltip when mouse is hovering over an ActionMenu item" (aff5daf5) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/view/menu/ActionMenuItemView.java

+39 −5

Original line number	Diff line number	Diff line
		@@ -28,7 +28,9 @@ import android.util.AttributeSet;
		import android.view.Gravity;
		import android.view.MotionEvent;
		import android.view.View;
		import android.view.ViewConfiguration;
		import android.view.accessibility.AccessibilityEvent;
		import android.view.accessibility.AccessibilityManager;
		import android.widget.ActionMenuView;
		import android.widget.ForwardingListener;
		import android.widget.TextView;
		@@ -57,6 +59,9 @@ public class ActionMenuItemView extends TextView
		private static final int MAX_ICON_SIZE = 32; // dp
		private int mMaxIconSize;

		private Toast mTooltip;
		private Runnable mShowTooltipRunnable = () -> showTooltip(Toast.LENGTH_LONG);

		public ActionMenuItemView(Context context) {
		this(context, null);
		}
		@@ -244,6 +249,7 @@ public class ActionMenuItemView extends TextView

		@Override
		public boolean dispatchHoverEvent(MotionEvent event) {
		updateTooltip(event);
		// Don't allow children to hover; we want this to be treated as a single component.
		return onHoverEvent(event);
		}
		@@ -262,6 +268,10 @@ public class ActionMenuItemView extends TextView

		@Override
		public boolean onLongClick(View v) {
		return showTooltip(Toast.LENGTH_SHORT);
		}

		private boolean showTooltip(@Toast.Duration int duration) {
		if (hasText()) {
		// Don't show the cheat sheet for items that already show text.
		return false;
		@@ -277,23 +287,47 @@ public class ActionMenuItemView extends TextView
		final int height = getHeight();
		final int midy = screenPos[1] + height / 2;
		int referenceX = screenPos[0] + width / 2;
		if (v.getLayoutDirection() == View.LAYOUT_DIRECTION_LTR) {
		if (getLayoutDirection() == View.LAYOUT_DIRECTION_LTR) {
		final int screenWidth = context.getResources().getDisplayMetrics().widthPixels;
		referenceX = screenWidth - referenceX; // mirror
		}
		Toast cheatSheet = Toast.makeText(context, mItemData.getTitle(), Toast.LENGTH_SHORT);
		hideTooltip ();
		mTooltip = Toast.makeText(context, mItemData.getTitle(), duration);
		if (midy < displayFrame.height()) {
		// Show along the top; follow action buttons
		cheatSheet.setGravity(Gravity.TOP \| Gravity.END, referenceX,
		mTooltip.setGravity(Gravity.TOP \| Gravity.END, referenceX,
		screenPos[1] + height - displayFrame.top);
		} else {
		// Show along the bottom center
		cheatSheet.setGravity(Gravity.BOTTOM \| Gravity.CENTER_HORIZONTAL, 0, height);
		mTooltip.setGravity(Gravity.BOTTOM \| Gravity.CENTER_HORIZONTAL, 0, height);
		}
		cheatSheet.show();
		mTooltip.show();
		return true;
		}

		private void hideTooltip() {
		if (mTooltip != null) {
		mTooltip.cancel();
		mTooltip = null;
		}
		getHandler().removeCallbacks(mShowTooltipRunnable);
		}

		private void updateTooltip(MotionEvent event) {
		AccessibilityManager manager = AccessibilityManager.getInstance(mContext);
		if (manager.isEnabled() && manager.isTouchExplorationEnabled()) {
		return;
		}

		final int action = event.getAction();
		if (action == MotionEvent.ACTION_HOVER_MOVE) {
		hideTooltip();
		getHandler().postDelayed(mShowTooltipRunnable, ViewConfiguration.getLongPressTimeout());
		} else if (action == MotionEvent.ACTION_HOVER_EXIT) {
		hideTooltip();
		}
		}

		@Override
		protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		final boolean textVisible = hasText();