| /* |
| * Copyright 2000-2014 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 org.jetbrains.plugins.groovy.editor; |
| |
| import com.intellij.lang.Language; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.DataKeys; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.actionSystem.EditorActionHandler; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.util.PsiUtilBase; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.GroovyLanguage; |
| |
| /** |
| * @author ilyas |
| */ |
| public class HandlerUtils { |
| private HandlerUtils() { |
| } |
| |
| public static boolean isEnabled(@NotNull final Editor editor, @NotNull final DataContext dataContext, |
| @Nullable final EditorActionHandler originalHandler) { |
| final Project project = getProject(dataContext); |
| if (project != null) { |
| final Language language = PsiUtilBase.getLanguageInEditor(editor, project); |
| if (language == GroovyLanguage.INSTANCE) { |
| return true; |
| } |
| } |
| |
| return originalHandler == null || originalHandler.isEnabled(editor, dataContext); |
| } |
| |
| public static boolean isReadOnly(@NotNull final Editor editor) { |
| if (editor.isViewer()) { |
| return true; |
| } |
| Document document = editor.getDocument(); |
| return !document.isWritable(); |
| } |
| |
| public static boolean canBeInvoked(final Editor editor, final Project project) { |
| if (isReadOnly(editor)) { |
| return false; |
| } |
| if (getPsiFile(editor, project) == null) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public static PsiFile getPsiFile(@NotNull final Editor editor, @NotNull final DataContext dataContext) { |
| return getPsiFile(editor, getProject(dataContext)); |
| } |
| |
| public static PsiFile getPsiFile(@NotNull final Editor editor, final Project project) { |
| return PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument()); |
| } |
| |
| @Nullable |
| public static Language getLanguage(@NotNull final DataContext dataContext) { |
| return DataKeys.LANGUAGE.getData(dataContext); |
| } |
| |
| @Nullable |
| public static Project getProject(@NotNull final DataContext dataContext) { |
| return DataKeys.PROJECT.getData(dataContext); |
| } |
| |
| |
| } |