| // Copyright 2008 The Apache Software Foundation |
| // |
| // 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 org.apache.tapestry5.corelib.components; |
| |
| import org.apache.tapestry5.BindingConstants; |
| import org.apache.tapestry5.ComponentResources; |
| import org.apache.tapestry5.Link; |
| import org.apache.tapestry5.annotations.Parameter; |
| import org.apache.tapestry5.corelib.base.AbstractComponentEventLink; |
| import org.apache.tapestry5.ioc.annotations.Inject; |
| |
| /** |
| * A close relative of {@link org.apache.tapestry5.corelib.components.ActionLink} except in two ways. |
| * <p/> |
| * First, the event that it triggers is explicitly controlled, rather than always "action". |
| * <p/> |
| * Second, the event is triggered in its container. |
| * <p/> |
| * This allows slightly shorter URLs but also allows multiple components within the same container to generate identical |
| * URLs for common actions. |
| */ |
| public class EventLink extends AbstractComponentEventLink |
| { |
| /** |
| * The name of the event to be triggered in the parent component. Defaults to the id of the component. An {@link |
| * org.apache.tapestry5.corelib.components.ActionLink} triggers an "action" event on itself, and EventLink component |
| * triggers any arbitrary event on <em>its container</em>. |
| */ |
| @Parameter(defaultPrefix = BindingConstants.LITERAL) |
| private String event; |
| |
| @Inject |
| private ComponentResources resources; |
| |
| String defaultEvent() |
| { |
| return resources.getId(); |
| } |
| |
| protected Link createLink(Object[] eventContext) |
| { |
| ComponentResources containerResources = resources.getContainerResources(); |
| |
| return containerResources.createActionLink(event, false, eventContext); |
| } |
| } |