/*
* Copyright 2000-2015 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.jetbrains.lang.dart.ide.hierarchy.type;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.intellij.ide.hierarchy.HierarchyNodeDescriptor;
import com.intellij.ide.hierarchy.HierarchyTreeStructure;
import com.intellij.openapi.project.Project;
import com.intellij.util.ArrayUtil;
import com.jetbrains.lang.dart.psi.DartClass;
import com.jetbrains.lang.dart.util.DartResolveUtil;
import org.dartlang.analysis.server.protocol.TypeHierarchyItem;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.List;
import java.util.Set;
import static com.jetbrains.lang.dart.ide.hierarchy.DartHierarchyUtil.findDartClass;
import static com.jetbrains.lang.dart.ide.hierarchy.DartHierarchyUtil.getTypeHierarchyItems;
import static com.jetbrains.lang.dart.ide.hierarchy.type.DartServerSubtypesHierarchyTreeStructure.addSubClassHierarchy;
public final class DartServerTypeHierarchyTreeStructure extends HierarchyTreeStructure {
private final String myCurrentScopeType;
public DartServerTypeHierarchyTreeStructure(final Project project, final DartClass dartClass, String currentScopeType) {
super(project, buildHierarchyElement(project, dartClass));
myCurrentScopeType = currentScopeType;
//super(project, buildHierarchyElement(project, dartClass), currentScopeType);
setBaseElement(myBaseDescriptor); //to set myRoot
}
@NotNull
@Override
protected Object[] buildChildren(@NotNull HierarchyNodeDescriptor descriptor) {
return ArrayUtil.EMPTY_OBJECT_ARRAY;
}
@NotNull
private static HierarchyNodeDescriptor buildHierarchyElement(@NotNull final Project project, @NotNull final DartClass dartClass) {
if (DartResolveUtil.OBJECT.equals(dartClass.getName())) {
return new DartTypeHierarchyNodeDescriptor(project, null, dartClass, true);
}
final List<TypeHierarchyItem> items = getTypeHierarchyItems(dartClass);
final HierarchyNodeDescriptor superDescriptor = buildSuperClassHierarchy(project, items);
final HierarchyNodeDescriptor baseDescriptor = new DartTypeHierarchyNodeDescriptor(project, superDescriptor, dartClass, true);
if (superDescriptor != null) {
superDescriptor.setCachedChildren(new HierarchyNodeDescriptor[]{baseDescriptor});
}
if (!items.isEmpty()) {
addSubClassHierarchy(Sets.newHashSet(), project, items, items.get(0), baseDescriptor);
}
return baseDescriptor;
}
@Nullable
private static HierarchyNodeDescriptor buildSuperClassHierarchy(@NotNull final Project project,
@NotNull final List<TypeHierarchyItem> items) {
HierarchyNodeDescriptor descriptor = null;
final DartClass[] superClasses = filterSuperClasses(project, items);
for (int i = superClasses.length - 1; i >= 0; i--) {
final DartClass superClass = superClasses[i];
final HierarchyNodeDescriptor newDescriptor = new DartTypeHierarchyNodeDescriptor(project, descriptor, superClass, false);
if (descriptor != null) {
descriptor.setCachedChildren(new HierarchyNodeDescriptor[]{newDescriptor});
}
descriptor = newDescriptor;
}
return descriptor;
}
@NotNull
public static DartClass[] filterSuperClasses(@NotNull final Project project, @NotNull final List<TypeHierarchyItem> items) {
if (items.isEmpty()) return new DartClass[]{};
final Set<TypeHierarchyItem> seenItems = Sets.newHashSet();
final List<DartClass> superClasses = Lists.newArrayList();
Integer superIndex = items.get(0).getSuperclass();
while (superIndex != null) {
TypeHierarchyItem superItem = items.get(superIndex);
if (!seenItems.add(superItem)) {
break;
}
final DartClass superClass = findDartClass(project, superItem);
if (superClass != null) {
superClasses.add(superClass);
}
superIndex = superItem.getSuperclass();
}
return superClasses.toArray(new DartClass[superClasses.size()]);
}
}