| /* |
| * 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. |
| */ |
| |
| /* |
| * Created by IntelliJ IDEA. |
| * User: max |
| * Date: May 20, 2002 |
| * Time: 4:13:37 PM |
| * To change template for new class use |
| * Code Style | Class Templates options (Tools | IDE Options). |
| */ |
| package com.intellij.openapi.editor.actions; |
| |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.editor.*; |
| import com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.openapi.util.TextRange; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class ToggleCaseAction extends TextComponentEditorAction { |
| public ToggleCaseAction() { |
| super(new Handler()); |
| } |
| |
| private static class Handler extends EditorWriteActionHandler { |
| @Override |
| public void executeWriteAction(final Editor editor, @Nullable Caret caret, DataContext dataContext) { |
| final SelectionModel selectionModel = editor.getSelectionModel(); |
| |
| if (selectionModel.hasBlockSelection()) { |
| final int[] starts = selectionModel.getBlockSelectionStarts(); |
| final int[] ends = selectionModel.getBlockSelectionEnds(); |
| LogicalPosition blockStart = selectionModel.getBlockStart(); |
| LogicalPosition blockEnd = selectionModel.getBlockEnd(); |
| |
| selectionModel.removeBlockSelection(); |
| selectionModel.removeSelection(); |
| |
| for (int i = 0; i < starts.length; i++) { |
| int startOffset = starts[i]; |
| int endOffset = ends[i]; |
| final String text = editor.getDocument().getCharsSequence().subSequence(startOffset, endOffset).toString(); |
| String converted = toCase(text, true); |
| if (text.equals(converted)) { |
| converted = toCase(text, false); |
| } |
| editor.getDocument().replaceString(startOffset, endOffset, converted); |
| } |
| if (blockStart != null && blockEnd != null) { |
| selectionModel.setBlockSelection(blockStart, blockEnd); |
| } |
| } |
| else { |
| final Ref<Boolean> toLowerCase = new Ref<Boolean>(Boolean.FALSE); |
| runForCaret(editor, caret, new CaretAction() { |
| @Override |
| public void perform(Caret caret) { |
| if (!caret.hasSelection()) { |
| caret.selectWordAtCaret(true); |
| } |
| String selectedText = caret.getSelectedText(); |
| if (selectedText != null && !selectedText.equals(toCase(selectedText, true))) { |
| toLowerCase.set(Boolean.TRUE); |
| } |
| } |
| }); |
| runForCaret(editor, caret, new CaretAction() { |
| @Override |
| public void perform(Caret caret) { |
| VisualPosition caretPosition = caret.getVisualPosition(); |
| int selectionStartOffset = caret.getSelectionStart(); |
| int selectionEndOffset = caret.getSelectionEnd(); |
| VisualPosition selectionStartPosition = caret.getSelectionStartPosition(); |
| VisualPosition selectionEndPosition = caret.getSelectionEndPosition(); |
| caret.removeSelection(); |
| String text = editor.getDocument().getText(new TextRange(selectionStartOffset, selectionEndOffset)); |
| editor.getDocument().replaceString(selectionStartOffset, selectionEndOffset, toCase(text, toLowerCase.get())); |
| caret.moveToVisualPosition(caretPosition); |
| caret.setSelection(selectionStartPosition, selectionStartOffset, selectionEndPosition, selectionEndOffset); |
| } |
| }); |
| } |
| } |
| |
| private static void runForCaret(Editor editor, Caret caret, CaretAction action) { |
| if (caret == null) { |
| editor.getCaretModel().runForEachCaret(action); |
| } |
| else { |
| action.perform(caret); |
| } |
| } |
| private static String toCase(final String text, final boolean lower) { |
| StringBuilder builder = new StringBuilder(text.length()); |
| boolean prevIsSlash = false; |
| for( int i = 0; i < text.length(); ++i) { |
| char c = text.charAt(i); |
| if( !prevIsSlash ) { |
| c = lower ? Character.toLowerCase(c) : Character.toUpperCase(c); |
| } |
| prevIsSlash = c == '\\'; |
| builder.append(c); |
| } |
| return builder.toString(); |
| } |
| } |
| } |