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Library wrapping Bootstrap 3 controls as Java web application components
/**
* Copyright (C) 2014 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* 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.
*/
package com.helger.bootstrap3.ext;
import java.util.Locale;
import java.util.Map;
import javax.annotation.Nonnull;
import com.helger.appbasics.app.menu.IMenuItemExternal;
import com.helger.appbasics.app.menu.IMenuItemPage;
import com.helger.appbasics.app.menu.IMenuSeparator;
import com.helger.appbasics.app.menu.IMenuTree;
import com.helger.appbasics.app.menu.MenuItemDeterminatorCallback;
import com.helger.bootstrap3.CBootstrapCSS;
import com.helger.bootstrap3.EBootstrapIcon;
import com.helger.bootstrap3.well.BootstrapWell;
import com.helger.bootstrap3.well.EBootstrapWellType;
import com.helger.commons.annotations.OverrideOnDemand;
import com.helger.commons.factory.FactoryNewInstance;
import com.helger.html.hc.IHCElement;
import com.helger.html.hc.IHCNode;
import com.helger.html.hc.html.HCA;
import com.helger.html.hc.html.HCLI;
import com.helger.html.hc.html.HCUL;
import com.helger.html.hc.impl.HCTextNode;
import com.helger.webbasics.app.ISimpleWebExecutionContext;
import com.helger.webbasics.app.layout.ILayoutExecutionContext;
import com.helger.webbasics.app.menu.ui.AbstractMenuItemRenderer;
import com.helger.webbasics.app.menu.ui.IMenuItemRenderer;
import com.helger.webbasics.app.menu.ui.MenuRendererCallback;
/**
* Default implementation of {@link IMenuItemRenderer}
*
* @author Philip Helger
*/
public class BootstrapMenuItemRenderer extends AbstractMenuItemRenderer
{
public BootstrapMenuItemRenderer (@Nonnull final Locale aContentLocale)
{
super (aContentLocale);
}
@Nonnull
public IHCNode renderSeparator (@Nonnull final ISimpleWebExecutionContext aSWEC,
@Nonnull final IMenuSeparator aSeparator)
{
return new HCLI ().addClass (CBootstrapCSS.DIVIDER);
}
/**
* Get the label to display.
*
* @param aMenuItem
* Menu item. Never null.
* @param bHasChildren
* true if the item has children
* @param bIsSelected
* true if it is selected
* @param bIsExpanded
* true if it is expanded.
* @return The label text. Should not be null.
* @see #getContentLocale()
*/
@Nonnull
@OverrideOnDemand
protected String getMenuItemPageLabel (@Nonnull final IMenuItemPage aMenuItem,
final boolean bHasChildren,
final boolean bIsSelected,
final boolean bIsExpanded)
{
return aMenuItem.getDisplayText (getContentLocale ());
}
@Nonnull
public IHCNode renderMenuItemPage (@Nonnull final ISimpleWebExecutionContext aSWEC,
@Nonnull final IMenuItemPage aMenuItem,
final boolean bHasChildren,
final boolean bIsSelected,
final boolean bIsExpanded)
{
final HCA aLink = new HCA (aSWEC.getLinkToMenuItem (aMenuItem.getID ()));
aLink.addChild (getMenuItemPageLabel (aMenuItem, bHasChildren, bIsSelected, bIsExpanded));
if (bHasChildren && !bIsExpanded)
aLink.addChildren (new HCTextNode (" "), EBootstrapIcon.CHEVRON_RIGHT.getAsNode ());
return aLink;
}
/**
* Get the label to display.
*
* @param aMenuItem
* Menu item. Never null.
* @param bHasChildren
* true if the item has children
* @param bIsSelected
* true if it is selected
* @param bIsExpanded
* true if it is expanded.
* @return The label text. Should not be null.
* @see #getContentLocale()
*/
@Nonnull
@OverrideOnDemand
protected String getMenuItemExternalLabel (@Nonnull final IMenuItemExternal aMenuItem,
final boolean bHasChildren,
final boolean bIsSelected,
final boolean bIsExpanded)
{
return aMenuItem.getDisplayText (getContentLocale ());
}
@Nonnull
public IHCNode renderMenuItemExternal (@Nonnull final ISimpleWebExecutionContext aSWEC,
@Nonnull final IMenuItemExternal aMenuItem,
final boolean bHasChildren,
final boolean bIsSelected,
final boolean bIsExpanded)
{
final HCA aLink = new HCA (aMenuItem.getURL ());
aLink.setTargetBlank ();
aLink.addChild (getMenuItemExternalLabel (aMenuItem, bHasChildren, bIsSelected, bIsExpanded));
if (bHasChildren && !bIsExpanded)
aLink.addChildren (new HCTextNode (" "), EBootstrapIcon.CHEVRON_RIGHT.getAsNode ());
return aLink;
}
@Override
public void onLevelDown (@Nonnull final HCUL aNewLevel)
{
aNewLevel.addClass (CBootstrapCSS.NAV);
}
@Override
public void onMenuItemPageItem (@Nonnull final ISimpleWebExecutionContext aSWEC,
@Nonnull final HCLI aLI,
final boolean bHasChildren,
final boolean bSelected,
final boolean bExpanded)
{
if (bSelected || bExpanded)
aLI.addClass (CBootstrapCSS.ACTIVE);
}
@Override
public void onMenuItemExternalItem (@Nonnull final ISimpleWebExecutionContext aSWEC,
@Nonnull final HCLI aLI,
final boolean bHasChildren,
final boolean bSelected,
final boolean bExpanded)
{
if (bSelected || bExpanded)
aLI.addClass (CBootstrapCSS.ACTIVE);
}
@Nonnull
public static IHCElement createSideBarMenu (@Nonnull final ILayoutExecutionContext aLEC)
{
final IMenuTree aMenuTree = aLEC.getMenuTree ();
return createSideBarMenu (aLEC, new MenuItemDeterminatorCallback (aMenuTree, aLEC.getSelectedMenuItemID ()));
}
@Nonnull
public static IHCElement createSideBarMenu (@Nonnull final ILayoutExecutionContext aLEC,
@Nonnull final MenuItemDeterminatorCallback aDeterminator)
{
return createSideBarMenu (aLEC, aLEC.getMenuTree (), aDeterminator);
}
@Nonnull
public static IHCElement createSideBarMenu (@Nonnull final ILayoutExecutionContext aLEC,
@Nonnull final IMenuTree aMenuTree,
@Nonnull final MenuItemDeterminatorCallback aDeterminator)
{
return createSideBarMenu (aLEC, aMenuTree, aDeterminator, new BootstrapMenuItemRenderer (aLEC.getDisplayLocale ()));
}
@Nonnull
public static IHCElement createSideBarMenu (@Nonnull final ILayoutExecutionContext aLEC,
@Nonnull final IMenuTree aMenuTree,
@Nonnull final MenuItemDeterminatorCallback aDeterminator,
@Nonnull final BootstrapMenuItemRenderer aRenderer)
{
final Map aAllDisplayMenuItemIDs = MenuItemDeterminatorCallback.getAllDisplayMenuItemIDs (aDeterminator);
final HCUL aUL = MenuRendererCallback.createRenderedMenu (aLEC,
FactoryNewInstance.create (HCUL.class),
aMenuTree.getRootItem (),
aRenderer,
aAllDisplayMenuItemIDs).addClass (CBootstrapCSS.NAV);
final BootstrapWell ret = new BootstrapWell (EBootstrapWellType.SMALL);
ret.addChild (aUL);
return ret;
}
}