| /* |
| * 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 org.intellij.images.editor.actionSystem; |
| |
| import com.intellij.openapi.actionSystem.AnActionEvent; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.actionSystem.Presentation; |
| import com.intellij.openapi.fileEditor.FileEditor; |
| import org.intellij.images.editor.ImageEditor; |
| import org.intellij.images.editor.ImageFileEditor; |
| |
| /** |
| * Editor actions utility. |
| * |
| * @author <a href="mailto:aefimov.box@gmail.com">Alexey Efimov</a> |
| */ |
| public final class ImageEditorActionUtil { |
| private ImageEditorActionUtil() { |
| } |
| |
| /** |
| * Extract current editor from event context. |
| * |
| * @param e Action event |
| * @return Current {@link ImageEditor} or <code>null</code> |
| */ |
| public static ImageEditor getValidEditor(AnActionEvent e) { |
| ImageEditor editor = getEditor(e); |
| if (editor != null && editor.isValid()) { |
| return editor; |
| } |
| return null; |
| } |
| |
| public static ImageEditor getEditor(AnActionEvent e) { |
| DataContext dataContext = e.getDataContext(); |
| FileEditor editor = PlatformDataKeys.FILE_EDITOR.getData(dataContext); |
| if (editor instanceof ImageFileEditor) { |
| ImageFileEditor fileEditor = (ImageFileEditor) editor; |
| return fileEditor.getImageEditor(); |
| } |
| return null; |
| } |
| |
| /** |
| * Enable or disable current action from event. |
| * |
| * @param e Action event |
| * @return Enabled value |
| */ |
| public static boolean setEnabled(AnActionEvent e) { |
| ImageEditor editor = getValidEditor(e); |
| Presentation presentation = e.getPresentation(); |
| presentation.setEnabled(editor != null); |
| return presentation.isEnabled(); |
| } |
| } |