| /* |
| * 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.codeInsight.folding.impl.actions; |
| |
| import com.intellij.codeInsight.folding.CodeFoldingManager; |
| import com.intellij.codeInsight.folding.impl.FoldingUtil; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.FoldRegion; |
| import com.intellij.openapi.editor.actionSystem.EditorAction; |
| import com.intellij.openapi.editor.actionSystem.EditorActionHandler; |
| import com.intellij.openapi.project.Project; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class ExpandRegionAction extends EditorAction { |
| public ExpandRegionAction() { |
| super(new EditorActionHandler() { |
| @Override |
| public void execute(Editor editor, DataContext dataContext) { |
| expandRegionAtCaret(editor.getProject(), editor); |
| } |
| |
| @Override |
| public boolean isEnabled(Editor editor, DataContext dataContext) { |
| return super.isEnabled(editor, dataContext) && CommonDataKeys.PROJECT.getData(dataContext) != null; |
| } |
| |
| }); |
| } |
| |
| public static void expandRegionAtCaret(final Project project, @Nullable final Editor editor) { |
| if (editor == null) return; |
| |
| expandRegionAtOffset(project, editor, editor.getCaretModel().getOffset()); |
| } |
| |
| public static void expandRegionAtOffset(@NotNull Project project, @NotNull final Editor editor, final int offset) { |
| CodeFoldingManager foldingManager = CodeFoldingManager.getInstance(project); |
| foldingManager.updateFoldRegions(editor); |
| |
| final int line = editor.getDocument().getLineNumber(offset); |
| Runnable processor = new Runnable() { |
| @Override |
| public void run() { |
| FoldRegion region = FoldingUtil.findFoldRegionStartingAtLine(editor, line); |
| if (region != null && !region.isExpanded()){ |
| region.setExpanded(true); |
| } |
| else{ |
| FoldRegion[] regions = FoldingUtil.getFoldRegionsAtOffset(editor, offset); |
| for(int i = regions.length - 1; i >= 0; i--){ |
| region = regions[i]; |
| if (!region.isExpanded()){ |
| region.setExpanded(true); |
| break; |
| } |
| } |
| } |
| } |
| }; |
| editor.getFoldingModel().runBatchFoldingOperation(processor); |
| } |
| } |