Created
September 23, 2010 22:12
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Wicket CollapsiblePanel: allows the show and hide of an inner panel while keeping a header and border
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| import org.apache.wicket.ResourceReference; | |
| import org.apache.wicket.ajax.AjaxRequestTarget; | |
| import org.apache.wicket.extensions.ajax.markup.html.IndicatingAjaxLink; | |
| import org.apache.wicket.markup.html.basic.Label; | |
| import org.apache.wicket.markup.html.image.Image; | |
| import org.apache.wicket.markup.html.panel.Panel; | |
| import org.apache.wicket.model.IModel; | |
| /** | |
| * Wicket panel that can be opened and closed | |
| * | |
| * @author Jonny Wray | |
| */ | |
| public abstract class CollapsiblePanel extends Panel { | |
| private ResourceReference closed = new ResourceReference(CollapsiblePanel.class, "bullet_toggle_plus.png"); | |
| private ResourceReference open = new ResourceReference(CollapsiblePanel.class, "bullet_toggle_minus.png"); | |
| private boolean visible = false; | |
| protected Panel innerPanel; | |
| /** | |
| * Construct the panel | |
| * | |
| * @param id Panel ID | |
| * @param titleModel Model used to get the panel title | |
| * @param defaultOpen Is the default state open | |
| */ | |
| public CollapsiblePanel(String id, IModel<String> titleModel, boolean defaultOpen){ | |
| super(id); | |
| this.visible = defaultOpen; | |
| innerPanel = getInnerPanel("innerPanel"); | |
| innerPanel.setVisible(visible); | |
| innerPanel.setOutputMarkupId(true); | |
| innerPanel.setOutputMarkupPlaceholderTag(true); | |
| add(innerPanel); | |
| final Image showHideImage = new Image("showHideIcon"){ | |
| private static final long serialVersionUID = 8638737301579767296L; | |
| @Override | |
| public ResourceReference getImageResourceReference(){ | |
| return visible ? open : closed; | |
| } | |
| }; | |
| showHideImage.setOutputMarkupId(true); | |
| IndicatingAjaxLink showHideLink = new IndicatingAjaxLink("showHideLink"){ | |
| private static final long serialVersionUID = -1929927616508773911L; | |
| @Override | |
| public void onClick(AjaxRequestTarget target) { | |
| visible = !visible; | |
| innerPanel.setVisible(visible); | |
| target.addComponent(innerPanel); | |
| target.addComponent(showHideImage); | |
| } | |
| }; | |
| showHideLink.add(showHideImage); | |
| add(new Label("titlePanel", titleModel)); | |
| add(showHideLink); | |
| } | |
| /** | |
| * Construct the panel contained within the collapsible panel | |
| * | |
| * @param markupId ID that should be used for the inner panel | |
| * @return The inner panel displayed when collapsible is open | |
| */ | |
| protected abstract Panel getInnerPanel(String markupId); | |
| } |
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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" | |
| "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | |
| <html xmlns="http://www.w3.org/1999/xhtml" xmlns:wicket="http://wicket.apache.org/dtds.data/wicket-xhtml1.3-strict.dtd" xml:lang="en" lang="en"> | |
| <wicket:panel> | |
| <fieldset class="collapsiblePanel"> | |
| <legend><h3><a href="#" wicket:id="showHideLink"><img wicket:id="showHideIcon" align="absmiddle" border="0"/></a> <span wicket:id="titlePanel"></span></h3></legend> | |
| <div> | |
| <span wicket:id="innerPanel" >[sequence]</span> | |
| </div> | |
| </fieldset> | |
| </wicket:panel> | |
| </html> |
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| .collapsiblePanel{ | |
| border: thin; | |
| border-color: #eee; | |
| border-style: solid; | |
| margin-bottom:5px; | |
| } |
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Hi, How to use this?
Can you give an example.
Thanks.