001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ade.galleries.client.preview.ui;
029
030import org.opencms.ade.galleries.client.preview.I_CmsPreviewHandler;
031import org.opencms.ade.galleries.shared.I_CmsGalleryProviderConstants.GalleryMode;
032
033import com.google.gwt.core.client.GWT;
034import com.google.gwt.uibinder.client.UiBinder;
035import com.google.gwt.user.client.ui.Composite;
036import com.google.gwt.user.client.ui.FlowPanel;
037
038/**
039 * Basic preview detail tab layout.<p>
040 *
041 * @since 8.0.
042 */
043public abstract class A_CmsPreviewDetailTab extends Composite {
044
045    /**
046     * @see com.google.gwt.uibinder.client.UiBinder
047     */
048    protected interface I_CmsPreviewDetailTabUiBinder extends UiBinder<FlowPanel, A_CmsPreviewDetailTab> {
049        // gwt interface, nothing to do
050    }
051
052    /** The ui-binder instance for this class. */
053    private static I_CmsPreviewDetailTabUiBinder uiBinder = GWT.create(I_CmsPreviewDetailTabUiBinder.class);
054
055    /** The main panel. */
056    protected FlowPanel m_main;
057
058    /** The tab height. */
059    protected int m_tabHeight;
060
061    /** The tab width. */
062    protected int m_tabWidth;
063
064    /** Flag indicating if tab content has been changed and will need saving. */
065    private boolean m_changed;
066
067    /** The mode of the gallery. */
068    private GalleryMode m_dialogMode;
069
070    /**
071     * Constructor.<p>
072     *
073     * @param dialogMode the gallery mode
074     * @param height the tab height
075     * @param width the tab width
076     */
077    public A_CmsPreviewDetailTab(GalleryMode dialogMode, int height, int width) {
078
079        m_main = uiBinder.createAndBindUi(this);
080        initWidget(m_main);
081
082        m_dialogMode = dialogMode;
083        m_tabHeight = height;
084        m_tabWidth = width;
085    }
086
087    /**
088     * Returns if the given tab has changes that need saving.<p>
089     *
090     * @return <code>true</code> if the given tab has changes that need saving
091     */
092    public boolean isChanged() {
093
094        return m_changed;
095    }
096
097    /**
098     * Returns the gallery mode.<p>
099     *
100     * @return the gallery mode
101     */
102    protected GalleryMode getDialogMode() {
103
104        return m_dialogMode;
105    }
106
107    /**
108     * Returns the preview handler.<p>
109     *
110     * @return the preview handler
111     */
112    protected abstract I_CmsPreviewHandler<?> getHandler();
113
114    /**
115     * Sets the changed state of the tab.<p>
116     *
117     * @param changed the changed state
118     */
119    protected void setChanged(boolean changed) {
120
121        m_changed = changed;
122    }
123
124}