package org.apache.isis.viewer.wicket.ui.components.widgets.cssmenu;
import de.agilecoders.wicket.core.markup.html.bootstrap.behavior.CssClassNameAppender;
import de.agilecoders.wicket.extensions.markup.html.bootstrap.button.DropdownAutoOpenJavaScriptReference;
import java.util.List;
import com.google.common.base.Strings;
import org.apache.wicket.markup.head.CssHeaderItem;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.AbstractLink;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Fragment;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.request.resource.CssResourceReference;
import org.apache.isis.viewer.wicket.ui.util.Components;
import org.apache.isis.viewer.wicket.ui.util.CssClassAppender;
/**
* A panel responsible to render the application actions as menu in a navigation bar.
*
* <p>
* The multi-level sub menu support is borrowed from
* <a href="http://bootsnipp.com/snippets/featured/multi-level-dropdown-menu-bs3">Bootsnip</a>
* </p>
*/
public class ApplicationActionsPanel extends Panel {
/**
* Constructor.
*
* @param id
* the Wicket component id
* @param menuItems
* the menu items with their sub menu items
*/
public ApplicationActionsPanel(String id, List<CssMenuItem> menuItems) {
super(id);
ListView<CssMenuItem> menuItemsView = new ListView<CssMenuItem>("menuItems", menuItems) {
@Override
protected void populateItem(ListItem<CssMenuItem> listItem) {
CssMenuItem menuItem = listItem.getModelObject();
listItem.add(new Label("name", menuItem.getName()));
List<CssMenuItem> subMenuItems = menuItem.getSubMenuItems();
// fake data to test multi-level menus
// if (menuItem.getName().equals("Text")) {
// CssMenuItem fakeItem = menuItem.newSubMenuItem("Fake item").build();
//
// fakeItem.newSubMenuItem("Fake item 1").link(new ExternalLink("menuLink", "http://abv.bg")).build();
// CssMenuItem fakeMenu12 = fakeItem.newSubMenuItem("Fake item 2").link(new ExternalLink("menuLink", "http://google.com")).build();
//
// fakeMenu12.newSubMenuItem("Fake item 2.1").link(new ExternalLink("menuLink", "http://web.de")).build();
// }
ListView<CssMenuItem> subMenuItemsView = new ListView<CssMenuItem>("subMenuItems", subMenuItems) {
@Override
protected void populateItem(ListItem<CssMenuItem> listItem) {
CssMenuItem subMenuItem = listItem.getModelObject();
if (subMenuItem.hasSubMenuItems()) {
addFolderItem(subMenuItem, listItem);
} else {
addLeafItem(subMenuItem, listItem);
}
}
};
listItem.add(subMenuItemsView);
}
};
add(menuItemsView);
}
private void addFolderItem(CssMenuItem subMenuItem, ListItem<CssMenuItem> listItem) {
listItem.add(new CssClassAppender("dropdown-submenu"));
Fragment folderItem = new Fragment("content", "folderItem", ApplicationActionsPanel.this);
listItem.add(folderItem);
folderItem.add(new Label("folderName", subMenuItem.getName()));
ListView<CssMenuItem> subMenuItemsView = new ListView<CssMenuItem>("subMenuItems", subMenuItem.getSubMenuItems()) {
@Override
protected void populateItem(ListItem<CssMenuItem> listItem) {
CssMenuItem subMenuItem = listItem.getModelObject();
if (subMenuItem.hasSubMenuItems()) {
addFolderItem(subMenuItem, listItem);
} else {
addLeafItem(subMenuItem, listItem);
}
}
};
folderItem.add(subMenuItemsView);
}
private void addLeafItem(CssMenuItem menuItem, ListItem<CssMenuItem> listItem) {
Fragment leafItem = new Fragment("content", "leafItem", ApplicationActionsPanel.this);
AbstractLink subMenuItemLink = menuItem.getLink();
Label menuItemLabel = new Label("menuLinkLabel", menuItem.getName());
subMenuItemLink.addOrReplace(menuItemLabel);
if (!menuItem.isEnabled()) {
listItem.add(new CssClassNameAppender("disabled"));
}
if (menuItem.isPrototyping()) {
subMenuItemLink.add(new CssClassNameAppender("btn btn-warning"));
}
leafItem.add(subMenuItemLink);
listItem.add(leafItem);
String cssClassFa = menuItem.getCssClassFa();
if (Strings.isNullOrEmpty(cssClassFa)) {
Components.permanentlyHide(subMenuItemLink, "menuLinkFontAwesome");
subMenuItemLink.add(new CssClassAppender("menuLinkSpacer"));
} else {
Label dummy = new Label("menuLinkFontAwesome", "");
dummy.add(new CssClassAppender(cssClassFa));
subMenuItemLink.addOrReplace(dummy);
}
}
@Override
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
response.render(CssHeaderItem.forReference(new CssResourceReference(ApplicationActionsPanel.class, "ApplicationActionsPanel.css")));
response.render(JavaScriptHeaderItem.forReference(DropdownAutoOpenJavaScriptReference.instance()));
response.render(OnDomReadyHeaderItem.forScript("$('.dropdown-toggle').dropdownHover();"));
}
}