| /* |
| * 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. |
| */ |
| package com.intellij.psi.util.proximity; |
| |
| import com.intellij.openapi.fileEditor.FileEditorManager; |
| import com.intellij.openapi.util.NotNullLazyKey; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.util.ProximityLocation; |
| import com.intellij.util.ArrayUtil; |
| import com.intellij.util.NotNullFunction; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author peter |
| */ |
| public class OpenedInEditorWeigher extends ProximityWeigher { |
| private static final NotNullLazyKey<VirtualFile[], ProximityLocation> OPENED_EDITORS = NotNullLazyKey.create("openedEditors", new NotNullFunction<ProximityLocation, VirtualFile[]>() { |
| @NotNull |
| @Override |
| public VirtualFile[] fun(ProximityLocation location) { |
| return FileEditorManager.getInstance(location.getProject()).getOpenFiles(); |
| } |
| }); |
| |
| @Override |
| public Comparable weigh(@NotNull final PsiElement element, @NotNull final ProximityLocation location) { |
| if (location.getProject() == null){ |
| return null; |
| } |
| final PsiFile psiFile = element.getContainingFile(); |
| if (psiFile == null) return false; |
| |
| final VirtualFile virtualFile = psiFile.getOriginalFile().getVirtualFile(); |
| return virtualFile != null && ArrayUtil.find(OPENED_EDITORS.getValue(location), virtualFile) != -1; |
| } |
| } |