platform/platform-impl/src/com/intellij/openapi/editor/actions/CopyAction.java

/*
 * 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 13, 2002
 * Time: 5:37:50 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.Caret;
import com.intellij.openapi.editor.CaretAction;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.actionSystem.EditorAction;
import com.intellij.openapi.editor.actionSystem.EditorActionHandler;
import com.intellij.openapi.util.registry.Registry;

public class CopyAction extends EditorAction {

  public static final String SKIP_COPY_AND_CUT_FOR_EMPTY_SELECTION_KEY = "editor.skip.copy.and.cut.for.empty.selection";

  public CopyAction() {
    super(new Handler());
  }

  private static class Handler extends EditorActionHandler {
    @Override
    public void execute(final Editor editor, DataContext dataContext) {
      if (!editor.getSelectionModel().hasSelection(true) && !editor.getSelectionModel().hasBlockSelection()) {
        if (Registry.is(SKIP_COPY_AND_CUT_FOR_EMPTY_SELECTION_KEY)) {
          return;
        }
        editor.getCaretModel().runForEachCaret(new CaretAction() {
          @Override
          public void perform(Caret caret) {
            editor.getSelectionModel().selectLineAtCaret();
            EditorActionUtil.moveCaretToLineStartIgnoringSoftWraps(editor);
          }
        });
      }
      editor.getSelectionModel().copySelectionToClipboard();
    }
  }
}