CLKey.java

/*
 * 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 androidx.constraintlayout.core.parser;

import java.util.ArrayList;

public class CLKey extends CLContainer {

  private static ArrayList<String> sections = new ArrayList<>();

  static {
    sections.add("ConstraintSets");
    sections.add("Variables");
    sections.add("Generate");
    sections.add("Transitions");
    sections.add("KeyFrames");
    sections.add("KeyAttributes");
    sections.add("KeyPositions");
    sections.add("KeyCycles");
  }

  public CLKey(char[] content) {
    super(content);
  }

  public static CLElement allocate(char[] content) {
    return new CLKey(content);
  }

  public static CLElement allocate(String name, CLElement value) {
    CLKey key = new CLKey(name.toCharArray());
    key.setStart(0);
    key.setEnd(name.length() -1);
    key.set(value);
    return key;
  }

  public String getName() { return content(); }

  protected String toJSON() {
    if (mElements.size() > 0) {
      return getDebugName() + content() + ": " + mElements.get(0).toJSON();
    }
    return getDebugName() + content() + ": <> ";
  }

  protected String toFormattedJSON(int indent, int forceIndent) {
    StringBuilder json = new StringBuilder(getDebugName());
    addIndent(json, indent);
    String content = content();
    if (mElements.size() > 0) {
      json.append(content);
      json.append(": ");
      if (sections.contains(content)) {
        forceIndent = 3;
      }
      if (forceIndent > 0) {
        json.append(mElements.get(0).toFormattedJSON(indent, forceIndent - 1));
      } else {
        String val = mElements.get(0).toJSON();
        if (val.length() + indent < MAX_LINE) {
          json.append(val);
        } else {
          json.append(mElements.get(0).toFormattedJSON(indent, forceIndent - 1));
        }
      }
      return json.toString();
    }
    return content + ": <> ";
  }

  public void set(CLElement value) {
    if (mElements.size() > 0) {
      mElements.set(0, value);
    } else {
      mElements.add(value);
    }
  }

  public CLElement getValue() {
    if (mElements.size() > 0) {
      return mElements.get(0);
    }
    return null;
  }
}