| /* |
| * 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.openapi.editor.actions; |
| |
| 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.actionSystem.EditorWriteActionHandler; |
| import com.intellij.openapi.ide.CopyPasteManager; |
| import com.intellij.util.text.CharArrayUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| class CutLineActionHandler extends EditorWriteActionHandler { |
| private final boolean myToLineStart; |
| private final boolean myIgnoreSelection; |
| private final boolean myCopyToClipboard; |
| |
| CutLineActionHandler(boolean toLineStart, boolean ignoreSelection, boolean copyToClipboard) { |
| super(!copyToClipboard); // as CutLineEndAction interacts with clipboard, multi-caret support for it needs to be implemented explicitly (todo) |
| myToLineStart = toLineStart; |
| myIgnoreSelection = ignoreSelection; |
| myCopyToClipboard = copyToClipboard; |
| } |
| |
| @Override |
| public void executeWriteAction(Editor editor, @Nullable Caret caret, DataContext dataContext) { |
| if (caret == null) { |
| caret = editor.getCaretModel().getCurrentCaret(); |
| } |
| if (!myIgnoreSelection && caret.hasSelection()) { |
| delete(editor, caret, caret.getSelectionStart(), caret.getSelectionEnd()); |
| return; |
| } |
| |
| final Document doc = editor.getDocument(); |
| int caretOffset = caret.getOffset(); |
| if ((myToLineStart && (caretOffset == 0)) || (!myToLineStart && (caretOffset >= doc.getTextLength()))) { |
| return; |
| } |
| final int lineNumber = doc.getLineNumber(caretOffset); |
| int lineEndOffset = doc.getLineEndOffset(lineNumber); |
| int lineStartOffset = doc.getLineStartOffset(lineNumber); |
| |
| if (editor.isColumnMode() && editor.getCaretModel().supportsMultipleCarets() |
| && caretOffset == (myToLineStart ? lineStartOffset : lineEndOffset)) { |
| return; |
| } |
| |
| int start; |
| int end; |
| if (myToLineStart) { |
| start = lineStartOffset; |
| end = caretOffset; |
| } |
| else { |
| if (caretOffset >= lineEndOffset) { |
| start = lineEndOffset; |
| end = lineEndOffset + 1; |
| } |
| else { |
| start = caretOffset; |
| end = lineEndOffset; |
| if (lineEndOffset < doc.getTextLength() && CharArrayUtil.isEmptyOrSpaces(doc.getCharsSequence(), caretOffset, lineEndOffset)) { |
| end++; |
| } |
| } |
| } |
| |
| delete(editor, caret, start, end); |
| } |
| |
| private void delete(@NotNull Editor editor, @NotNull Caret caret, int start, int end) { |
| if (myCopyToClipboard) { |
| KillRingUtil.copyToKillRing(editor, start, end, true); |
| } |
| else { |
| CopyPasteManager.getInstance().stopKillRings(); |
| } |
| editor.getDocument().deleteString(start, end); |
| |
| // in case the caret was in the virtual space, we force it to go back to the real offset |
| caret.moveToOffset(start); |
| } |
| } |