| /* |
| * 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 com.intellij.codeInsight.editorActions; |
| |
| import com.intellij.ide.DataManager; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.editor.Caret; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.FoldRegion; |
| import com.intellij.openapi.editor.actionSystem.EditorActionHandler; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.util.Processor; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class UnSelectWordHandler extends EditorActionHandler { |
| private final EditorActionHandler myOriginalHandler; |
| |
| public UnSelectWordHandler(EditorActionHandler originalHandler) { |
| super(true); |
| myOriginalHandler = originalHandler; |
| } |
| |
| @Override |
| public void doExecute(Editor editor, @Nullable Caret caret, DataContext dataContext) { |
| Project project = CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext(editor.getComponent())); |
| if (project == null) { |
| return; |
| } |
| Document document = editor.getDocument(); |
| final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(document); |
| |
| if (file == null) { |
| if (myOriginalHandler != null) { |
| myOriginalHandler.execute(editor, caret, dataContext); |
| } |
| return; |
| } |
| |
| PsiDocumentManager.getInstance(project).commitAllDocuments(); |
| doAction(editor, file); |
| } |
| |
| |
| private static void doAction(final Editor editor, PsiFile file) { |
| if (file instanceof PsiCompiledFile) { |
| file = ((PsiCompiledFile)file).getDecompiledPsiFile(); |
| if (file == null) return; |
| } |
| |
| if (!editor.getSelectionModel().hasSelection()) { |
| return; |
| } |
| |
| CharSequence text = editor.getDocument().getCharsSequence(); |
| |
| int cursorOffset = editor.getCaretModel().getOffset(); |
| |
| if (cursorOffset > 0 && cursorOffset < text.length() && |
| !Character.isJavaIdentifierPart(text.charAt(cursorOffset)) && |
| Character.isJavaIdentifierPart(text.charAt(cursorOffset - 1))) { |
| cursorOffset--; |
| } |
| |
| PsiElement element = file.findElementAt(cursorOffset); |
| |
| if (element instanceof PsiWhiteSpace && cursorOffset > 0) { |
| PsiElement anotherElement = file.findElementAt(cursorOffset - 1); |
| |
| if (!(anotherElement instanceof PsiWhiteSpace)) { |
| element = anotherElement; |
| } |
| } |
| |
| if (element instanceof PsiWhiteSpace) { |
| PsiElement nextSibling = element.getNextSibling(); |
| if (nextSibling == null) { |
| element = element.getParent(); |
| if (element == null || element instanceof PsiFile) { |
| return; |
| } |
| nextSibling = element.getNextSibling(); |
| if (nextSibling == null) { |
| return; |
| } |
| } |
| element = nextSibling; |
| cursorOffset = element.getTextRange().getStartOffset(); |
| } |
| |
| final TextRange selectionRange = new TextRange(editor.getSelectionModel().getSelectionStart(), editor.getSelectionModel().getSelectionEnd()); |
| |
| final Ref<TextRange> maximumRange = new Ref<TextRange>(); |
| |
| final int finalCursorOffset = cursorOffset; |
| SelectWordUtil.processRanges(element, text, cursorOffset, editor, new Processor<TextRange>() { |
| @Override |
| public boolean process(TextRange range) { |
| if (selectionRange.contains(range) && !range.equals(selectionRange) && |
| (range.contains(finalCursorOffset) || finalCursorOffset == range.getEndOffset()) && |
| !isOffsetCollapsed(range.getStartOffset()) && !isOffsetCollapsed(range.getEndOffset())) { |
| if (maximumRange.get() == null || range.contains(maximumRange.get())) { |
| maximumRange.set(range); |
| } |
| } |
| |
| return false; |
| } |
| |
| private boolean isOffsetCollapsed(int offset) { |
| FoldRegion region = editor.getFoldingModel().getCollapsedRegionAtOffset(offset); |
| return region != null && region.getStartOffset() != offset && region.getEndOffset() != offset; |
| } |
| }); |
| |
| TextRange range = maximumRange.get(); |
| |
| if (range == null) { |
| editor.getSelectionModel().setSelection(cursorOffset, cursorOffset); |
| } |
| else { |
| editor.getSelectionModel().setSelection(range.getStartOffset(), range.getEndOffset()); |
| } |
| } |
| } |