package org.wicketstuff.facebook.plugins;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.util.iterator.ComponentHierarchyIterator;
import org.wicketstuff.facebook.FacebookRootProvider;
import org.wicketstuff.facebook.MissingFacebookRootException;
/**
* https://developers.facebook.com/docs/plugins/
*
* This is an abstract class for facebook social plugins.
*
* @author Till Freier
*
*/
public abstract class AbstractFacebookPlugin extends WebMarkupContainer
{
protected class EnumModel extends AbstractReadOnlyModel<String>
{
/**
*
*/
private static final long serialVersionUID = 1L;
private final IModel<? extends Enum<?>> model;
/**
* @param model
*/
public EnumModel(final IModel<? extends Enum<?>> model)
{
super();
this.model = model;
}
@Override
public void detach()
{
model.detach();
}
@Override
public String getObject()
{
if (model == null || model.getObject() == null)
return null;
return model.getObject().name().toLowerCase();
}
}
/**
*
*/
private static final long serialVersionUID = 1L;
private ColorScheme colorScheme;
private Font font;
/**
* @param id
* wicket-id
* @param facebookPluginClass
* the plugin class like <code>class="fb-recommendations"</code>
*/
protected AbstractFacebookPlugin(final String id, final String facebookPluginClass)
{
super(id);
add(new AttributeModifier("class", facebookPluginClass));
add(new AttributeModifier("data-colorscheme", new EnumModel(new PropertyModel<ColorScheme>(
this, "colorScheme"))));
add(new AttributeModifier("data-font", new EnumModel(new PropertyModel<Font>(this, "font"))));
}
/**
* @see #setColorScheme(ColorScheme)
* @return
*/
public ColorScheme getColorScheme()
{
return colorScheme;
}
/**
* @see #setFont(Font)
* @return the font
*/
public Font getFont()
{
return font;
}
/**
* specifies the colorscheme for the plugin
*
* @param colorScheme
* the color scheme for the plugin. Options: {@link ColorScheme}
*/
public void setColorScheme(final ColorScheme colorScheme)
{
this.colorScheme = colorScheme;
}
/**
* @param font
* the font to display in the plugin. Options: {@link Font}
*/
public void setFont(final Font font)
{
this.font = font;
}
@Override
protected void onRender()
{
final ComponentHierarchyIterator visitChildren = getPage().visitChildren(
FacebookRootProvider.class);
if (!visitChildren.hasNext())
throw new MissingFacebookRootException();
if (findPage() != null)
{
AjaxRequestTarget target = getRequestCycle().find(AjaxRequestTarget.class);
if (target != null)
{
setOutputMarkupId(true);
final StringBuilder js = new StringBuilder();
js.append("FB.XFBML.parse(document.getElementById('");
js.append(getMarkupId());
js.append("').parentNode);");
target.appendJavaScript(js.toString());
}
}
super.onRender();
}
}