/* * 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.internal.widget; import android.annotation.Nullable; import android.content.Context; import android.graphics.Rect; import android.util.AttributeSet; import android.view.View; import android.view.accessibility.AccessibilityNodeInfo; import android.widget.Button; import android.widget.ImageView; import android.widget.RemoteViews; /** * An expand button in a notification */ @RemoteViews.RemoteView public class NotificationExpandButton extends ImageView { private View mLabeledBy; public NotificationExpandButton(Context context) { super(context); } public NotificationExpandButton(Context context, @Nullable AttributeSet attrs) { super(context, attrs); } public NotificationExpandButton(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } public NotificationExpandButton(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); } @Override public void getBoundsOnScreen(Rect outRect, boolean clipToParent) { super.getBoundsOnScreen(outRect, clipToParent); extendRectToMinTouchSize(outRect); } private void extendRectToMinTouchSize(Rect rect) { int touchTargetSize = (int) (getResources().getDisplayMetrics().density * 48); rect.left = rect.centerX() - touchTargetSize / 2; rect.right = rect.left + touchTargetSize; rect.top = rect.centerY() - touchTargetSize / 2; rect.bottom = rect.top + touchTargetSize; } @Override public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { super.onInitializeAccessibilityNodeInfo(info); info.setClassName(Button.class.getName()); if (mLabeledBy != null) { info.setLabeledBy(mLabeledBy); } } public void setLabeledBy(View labeledBy) { mLabeledBy = labeledBy; } }