/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.gwt.client.ui.contextmenu;
import org.opencms.gwt.client.ui.css.I_CmsImageBundle;
import org.opencms.gwt.client.ui.css.I_CmsLayoutBundle;
import org.opencms.util.CmsStringUtil;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.user.client.ui.HTML;
/**
* An entry in a {@link org.opencms.gwt.client.ui.contextmenu.CmsContextMenu}. Menu items can either fire a
* {@link com.google.gwt.user.client.Command} when they are clicked, or open a cascading sub-menu.<p>
*
* This implementation of the abstract context menu item provides a possible image in front of the text
* and a arrow for a sub menu entry.<p>
*
* Furthermore constructs the HTML for such a menu entry.<p>
*
* @since version 8.0.0
*/
public final class CmsContextMenuItem extends A_CmsContextMenuItem {
/** The panel containing the menu item text and optional the arrow and or a image in front of the text. */
private HTML m_panel;
/** The command for this menu item. */
private I_CmsContextMenuEntry m_entry;
/**
* Constructs a context menu item.<p>
*
* @param entry the information for this item
*/
public CmsContextMenuItem(I_CmsContextMenuEntry entry) {
// call the super constructor
super(entry.getLabel());
m_entry = entry;
// get the HTML for the menu item
m_panel = new HTML(getMenuItemHtml(m_entry.hasSubMenu()));
// initialize the widget with the panel and set the style name for the menu item
initWidget(m_panel);
setStyleName(I_CmsLayoutBundle.INSTANCE.contextmenuCss().cmsMenuItem());
// now, if the widget is initialized, it's possible to set the item active or inactive,
// because the mouse handlers for the item are added or removed
if (!m_entry.isActive()) {
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_entry.getReason())) {
setActive(m_entry.isActive(), m_entry.getReason());
} else {
setActive(m_entry.isActive(), "");
}
}
}
/**
* @see com.google.gwt.event.dom.client.ClickHandler#onClick(com.google.gwt.event.dom.client.ClickEvent)
*/
@Override
public void onClick(ClickEvent event) {
getParentMenu().hide();
if (m_entry != null) {
m_entry.execute();
}
}
/**
* @see org.opencms.gwt.client.ui.contextmenu.A_CmsContextMenuItem#getMenuItemHtml(boolean)
*/
@Override
protected String getMenuItemHtml(boolean hasSubMenu) {
StringBuffer html = new StringBuffer();
if (hasSubMenu) {
// if this menu item has a sub menu show the arrow-icon behind the text of the icon
html.append("<div class=\"");
html.append(I_CmsLayoutBundle.INSTANCE.contextmenuCss().arrow()
+ " "
+ I_CmsImageBundle.INSTANCE.style().triangleRight());
html.append("\"></div>");
}
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_entry.getImageClass())) {
// if an image class is set to the menu item show the image in front of the text
html.append("<div class=\"");
html.append(m_entry.getImageClass());
html.append(" " + I_CmsLayoutBundle.INSTANCE.contextmenuCss().itemIcon());
html.append("\"></div>");
} else if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_entry.getImagePath())) {
// if an image path is set to the menu item show the image in front of the text
html.append("<div class=\"");
html.append(I_CmsLayoutBundle.INSTANCE.contextmenuCss().image());
html.append(" " + I_CmsLayoutBundle.INSTANCE.contextmenuCss().itemIcon());
html.append("\" ");
html.append("style=\"background: transparent url('" + m_entry.getImagePath() + "') no-repeat scroll 0 0\"");
html.append("\"");
html.append("></div>");
}
// add the text to the item
html.append("<div class=\"");
html.append(I_CmsLayoutBundle.INSTANCE.contextmenuCss().label());
html.append("\">" + getText() + "</div>");
return html.toString();
}
}