| /* |
| * Copyright (C) 2016 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.launcher3.keyboard; |
| |
| import android.graphics.Rect; |
| import android.view.View; |
| import android.view.View.OnFocusChangeListener; |
| |
| import com.android.launcher3.R; |
| |
| /** |
| * A helper class to draw background of a focused view. |
| */ |
| public abstract class FocusIndicatorHelper extends ItemFocusIndicatorHelper<View> |
| implements OnFocusChangeListener { |
| |
| public FocusIndicatorHelper(View container) { |
| super(container, container.getResources().getColor(R.color.focused_background)); |
| } |
| |
| @Override |
| public void onFocusChange(View v, boolean hasFocus) { |
| changeFocus(v, hasFocus); |
| } |
| |
| @Override |
| protected boolean shouldDraw(View item) { |
| return item.isAttachedToWindow(); |
| } |
| |
| /** |
| * Simple subclass which assumes that the target view is a child of the container. |
| */ |
| public static class SimpleFocusIndicatorHelper extends FocusIndicatorHelper { |
| |
| public SimpleFocusIndicatorHelper(View container) { |
| super(container); |
| } |
| |
| @Override |
| public void viewToRect(View v, Rect outRect) { |
| outRect.set(v.getLeft(), v.getTop(), v.getRight(), v.getBottom()); |
| } |
| } |
| } |