| /* |
| * Copyright (C) 2021 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.car.qc.view; |
| |
| import static com.android.car.qc.view.QCView.QCActionListener; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.widget.LinearLayout; |
| |
| import androidx.lifecycle.Observer; |
| |
| import com.android.car.qc.QCItem; |
| import com.android.car.qc.QCList; |
| |
| /** |
| * Quick Controls view for {@link QCList} instances. |
| */ |
| public class QCListView extends LinearLayout implements Observer<QCItem> { |
| |
| private QCActionListener mActionListener; |
| |
| public QCListView(Context context) { |
| super(context); |
| init(); |
| } |
| |
| public QCListView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| init(); |
| } |
| |
| public QCListView(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| init(); |
| } |
| |
| public QCListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| init(); |
| } |
| |
| private void init() { |
| setOrientation(VERTICAL); |
| } |
| |
| /** |
| * Set the view's {@link QCActionListener}. This listener will propagate to all QCRows. |
| */ |
| public void setActionListener(QCActionListener listener) { |
| mActionListener = listener; |
| for (int i = 0; i < getChildCount(); i++) { |
| QCRowView view = (QCRowView) getChildAt(i); |
| view.setActionListener(mActionListener); |
| } |
| } |
| |
| @Override |
| public void onChanged(QCItem qcItem) { |
| if (qcItem == null) { |
| removeAllViews(); |
| return; |
| } |
| if (!qcItem.getType().equals(QCItem.QC_TYPE_LIST)) { |
| throw new IllegalArgumentException("Expected QCList type for QCListView but got " |
| + qcItem.getType()); |
| } |
| QCList qcList = (QCList) qcItem; |
| int rowCount = qcList.getRows().size(); |
| for (int i = 0; i < rowCount; i++) { |
| if (getChildAt(i) != null) { |
| QCRowView view = (QCRowView) getChildAt(i); |
| view.setRow(qcList.getRows().get(i)); |
| view.setActionListener(mActionListener); |
| } else { |
| QCRowView view = new QCRowView(getContext()); |
| view.setRow(qcList.getRows().get(i)); |
| view.setActionListener(mActionListener); |
| addView(view); |
| } |
| } |
| if (getChildCount() > rowCount) { |
| // remove extra rows |
| removeViews(rowCount, getChildCount() - rowCount); |
| } |
| } |
| } |