content: /*
   * Copyright (C) 2017 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.server.usb.descriptors.tree;
  
  import com.android.server.usb.descriptors.UsbConfigDescriptor;
  import com.android.server.usb.descriptors.report.ReportCanvas;
  
  import java.util.ArrayList;
  
  /**
   * @hide
   * Represents a configuration in the descriptors tree.
   */
  public final class UsbDescriptorsConfigNode extends UsbDescriptorsTreeNode {
      private static final String TAG = "UsbDescriptorsConfigNode";
  
      private final UsbConfigDescriptor mConfigDescriptor;
  
      private final ArrayList<UsbDescriptorsInterfaceNode> mInterfaceNodes = new ArrayList<>();
  
      /**
       * Constructor.
       * @param configDescriptor   The Config Descriptor object wrapped by this tree node.
       */
      public UsbDescriptorsConfigNode(UsbConfigDescriptor configDescriptor) {
          mConfigDescriptor = configDescriptor;
      }
  
      /**
       * Adds the inteface node logical contained in this configuration.
       * @param interfaceNode The inteface treenode to assocate with this configuration.
       */
      public void addInterfaceNode(UsbDescriptorsInterfaceNode interfaceNode) {
          mInterfaceNodes.add(interfaceNode);
      }
  
      @Override
      public void report(ReportCanvas canvas) {
          mConfigDescriptor.report(canvas);
  
          canvas.openList();
  
          // Interfaces
          for (UsbDescriptorsInterfaceNode node : mInterfaceNodes) {
              node.report(canvas);
          }
  
          canvas.closeList();
      }
  }
  