AbstractDomElementNode.java

/*
 * Copyright 2000-2016 JetBrains s.r.o.
 *
 * 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.intellij.util.xml.tree;

import com.intellij.openapi.util.Key;
import com.intellij.ui.SimpleTextAttributes;
import com.intellij.ui.treeStructure.SimpleNode;
import com.intellij.util.ReflectionUtil;
import com.intellij.util.xml.DomElement;
import com.intellij.util.xml.DomUtil;

import javax.swing.*;
import java.lang.reflect.Type;
import java.util.Comparator;
import java.util.Map;
import java.util.Optional;

abstract public class AbstractDomElementNode extends SimpleNode {

  public static final Key<Map<Class, Boolean>> TREE_NODES_HIDERS_KEY = Key.create("TREE_NODES_HIDERS_KEY");

  private final static Comparator<Class> INHERITORS_COMPARATOR = (o1, o2) -> o1.isAssignableFrom(o2) ? 1 : -1;

  private boolean isExpanded;


  protected AbstractDomElementNode(DomElement element) {
    this(element, null);
  }

  public String toString() {
    return getNodeName();
  }

  protected AbstractDomElementNode(DomElement element, SimpleNode parent) {
    super(element.getManager().getProject(), parent);
  }

  abstract public DomElement getDomElement();

  abstract public String getNodeName();

  abstract public String getTagName();


  public Icon getNodeIcon() {
    return getDomElement().getPresentation().getIcon();
  }

  protected String getPropertyName() {
    return getDomElement().getPresentation().getTypeName();
  }

  protected boolean shouldBeShown(final Type type) {
    final Map<Class, Boolean> hiders = DomUtil.getFile(getDomElement()).getUserData(TREE_NODES_HIDERS_KEY);
    if (type == null || hiders == null || hiders.size() == 0) return true;

    final Class aClass = ReflectionUtil.getRawType(type);

    Optional<Class> parent = hiders.keySet().stream()
      .filter(klass -> klass.isAssignableFrom(aClass)).min(INHERITORS_COMPARATOR);
    return parent.map(hiders::get).orElse(Boolean.FALSE).booleanValue();

  }

  protected SimpleTextAttributes getSimpleAttributes(@SimpleTextAttributes.StyleAttributeConstant final int style) {
    return new SimpleTextAttributes(style, SimpleTextAttributes.REGULAR_ATTRIBUTES.getFgColor());
  }

  protected SimpleTextAttributes getWavedAttributes(@SimpleTextAttributes.StyleAttributeConstant int style) {
    return new SimpleTextAttributes(style | SimpleTextAttributes.STYLE_WAVED, SimpleTextAttributes.REGULAR_ATTRIBUTES.getFgColor(), SimpleTextAttributes.ERROR_ATTRIBUTES.getFgColor());
  }
  public boolean isExpanded() {
    return isExpanded;
  }

  public void setExpanded(final boolean expanded) {
    isExpanded = expanded;
  }
}