| /* |
| * Copyright 2000-2009 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. |
| */ |
| |
| /* |
| * @author max |
| */ |
| package com.intellij.psi.impl.source.text; |
| |
| import com.intellij.lang.ASTNode; |
| import com.intellij.pom.PomManager; |
| import com.intellij.pom.tree.TreeAspect; |
| import com.intellij.pom.tree.events.ChangeInfo; |
| import com.intellij.pom.tree.events.impl.ChangeInfoImpl; |
| import com.intellij.pom.tree.events.impl.ReplaceChangeInfoImpl; |
| import com.intellij.pom.tree.events.impl.TreeChangeEventImpl; |
| import com.intellij.psi.impl.source.PsiFileImpl; |
| import com.intellij.psi.impl.source.tree.FileElement; |
| import com.intellij.util.diff.DiffTreeChangeBuilder; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class ASTDiffBuilder implements DiffTreeChangeBuilder<ASTNode, ASTNode> { |
| private final TreeChangeEventImpl myEvent; |
| |
| public ASTDiffBuilder(@NotNull PsiFileImpl fileImpl) { |
| TreeAspect modelAspect = PomManager.getModel(fileImpl.getProject()).getModelAspect(TreeAspect.class); |
| myEvent = new TreeChangeEventImpl(modelAspect, fileImpl.getTreeElement()); |
| } |
| |
| @Override |
| public void nodeReplaced(@NotNull ASTNode oldNode, @NotNull ASTNode newNode) { |
| if (oldNode instanceof FileElement && newNode instanceof FileElement) { |
| } |
| else { |
| final ReplaceChangeInfoImpl change = new ReplaceChangeInfoImpl(newNode); |
| change.setReplaced(oldNode); |
| |
| myEvent.addElementaryChange(newNode, change); |
| } |
| } |
| |
| @Override |
| public void nodeDeleted(@NotNull ASTNode parent, @NotNull final ASTNode child) { |
| myEvent.addElementaryChange(child, ChangeInfoImpl.create(ChangeInfo.REMOVED, child)); |
| } |
| |
| @Override |
| public void nodeInserted(@NotNull final ASTNode oldParent, @NotNull ASTNode newNode, final int pos) { |
| myEvent.addElementaryChange(newNode, ChangeInfoImpl.create(ChangeInfo.ADD, newNode)); |
| } |
| |
| @NotNull |
| public TreeChangeEventImpl getEvent() { |
| return myEvent; |
| } |
| } |