content: /*
   * Copyright (C) 2008 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.layoutlib.bridge;
  
  import com.android.SdkConstants;
  import com.android.layoutlib.bridge.android.BridgeLayoutParamsMapAttributes;
  
  import android.content.Context;
  import android.util.AttributeSet;
  import android.view.Gravity;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.FrameLayout;
  import android.widget.TextView;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Base class for mocked views.
   * <p/>
   * FrameLayout with a single TextView. Doesn't allow adding any other views to itself.
   */
  public class MockView extends FrameLayout {
  
      private final TextView mView;
  
      public MockView(Context context) {
          this(context, null);
      }
  
      public MockView(Context context, AttributeSet attrs) {
          this(context, attrs, 0);
      }
  
      public MockView(Context context, AttributeSet attrs, int defStyleAttr) {
          this(context, attrs, defStyleAttr, 0);
      }
  
      public MockView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
          super(context, attrs, defStyleAttr, defStyleRes);
          // This inner TextView is only used to show some message on render result and should not
          // inherit any attributes from parent (MockView). So it only needs layout width and height.
          Map<String, String> attributes = new HashMap<>();
          attributes.put(SdkConstants.ATTR_LAYOUT_WIDTH, SdkConstants.VALUE_MATCH_PARENT);
          attributes.put(SdkConstants.ATTR_LAYOUT_HEIGHT, SdkConstants.VALUE_MATCH_PARENT);
          mView = new TextView(context, new BridgeLayoutParamsMapAttributes(attributes));
          mView.setTextColor(0xFF000000);
          setGravity(Gravity.CENTER);
          setText(getClass().getSimpleName());
          addView(mView);
          setBackgroundColor(0xFF7F7F7F);
      }
  
      // Only allow adding one TextView.
      @Override
      public void addView(View child) {
          if (child == mView) {
              super.addView(child);
          }
      }
  
      @Override
      public void addView(View child, int index) {
          if (child == mView) {
              super.addView(child, index);
          }
      }
  
      @Override
      public void addView(View child, int width, int height) {
          if (child == mView) {
              super.addView(child, width, height);
          }
      }
  
      @Override
      public void addView(View child, ViewGroup.LayoutParams params) {
          if (child == mView) {
              super.addView(child, params);
          }
      }
  
      @Override
      public void addView(View child, int index, ViewGroup.LayoutParams params) {
          if (child == mView) {
              super.addView(child, index, params);
          }
      }
  
      // The following methods are called by the IDE via reflection, and should be considered part
      // of the API.
      // Historically, MockView used to be a textView and had these methods. Now, we simply delegate
      // them to the contained textView.
  
      public void setText(CharSequence text) {
          mView.setText(text);
      }
  
      @SuppressWarnings("WeakerAccess") // This method is used from Studio
      public void setGravity(int gravity) {
          mView.setGravity(gravity);
      }
  }
  