/*
 * <copyright>
 *
 * Copyright (c) 2005-2006 Sven Efftinge and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Sven Efftinge - Initial API and implementation
 *
 * </copyright>
 */
package org.eclipse.gmf.internal.xpand.editor.ui;

import java.util.ResourceBundle;

import org.eclipse.jface.text.ITextViewer;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.ui.texteditor.TextEditorAction;

public class InsertTextAction extends TextEditorAction {
    protected ITextViewer viewer;

    protected String text;

    public InsertTextAction(final ResourceBundle bundle, final ITextEditor editor, final ITextViewer viewer,
            final String text) {
        super(bundle, null, editor);

        this.viewer = viewer;
        this.text = text;

        update();
    }

    @Override
    public void run() {
        final StyledText textWidget = viewer.getTextWidget();

        if (textWidget.getSelectionCount() == 0) {
            textWidget.insert(text);
            textWidget.setCaretOffset(textWidget.getCaretOffset() + text.length());
        } else {
            textWidget.insert(text);
        }
    }

    @Override
    public void update() {
        super.update();

        final ITextEditor editor = getTextEditor();

        if ((editor == null) || !editor.isEditable()) {
            setEnabled(false);
        }
    }
}