    001// Copyright 2010 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007//     http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.services;
    016
    017import java.io.IOException;
    018
    019/**
    020 * Filter contributed into the {@link ComponentRequestHandler} pipeline to set the
    021 * {@link RequestGlobals#getActivePageName() activePageName property}.
    022 *
    023 * @since 5.2.0
    024 */
    025public class InitializeActivePageName implements ComponentRequestFilter
    026{
    027    private final RequestGlobals globals;
    028
    029    public InitializeActivePageName(RequestGlobals globals)
    030    {
    031        this.globals = globals;
    032    }
    033
    034    public void handleComponentEvent(ComponentEventRequestParameters parameters,
    035            ComponentRequestHandler handler) throws IOException
    036    {
    037        globals.storeActivePageName(parameters.getActivePageName());
    038
    039        handler.handleComponentEvent(parameters);
    040    }
    041
    042    public void handlePageRender(PageRenderRequestParameters parameters,
    043            ComponentRequestHandler handler) throws IOException
    044    {
    045        globals.storeActivePageName(parameters.getLogicalPageName());
    046
    047        handler.handlePageRender(parameters);
    048    }
    049
    050}