001// Copyright 2005 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.tapestry.form;
016
017import java.util.Locale;
018
019import org.apache.hivemind.ClassResolver;
020import org.apache.hivemind.Resource;
021import org.apache.hivemind.util.ClasspathResource;
022import org.apache.tapestry.IForm;
023import org.apache.tapestry.IRequestCycle;
024import org.apache.tapestry.PageRenderSupport;
025import org.apache.tapestry.TapestryUtils;
026
027/**
028 * Implementation of {@link org.apache.tapestry.form.FormComponentContributorContext}.
029 * 
030 * @author Howard Lewis Ship
031 * @since 4.0
032 */
033public class FormComponentContributorContextImpl extends ValidationMessagesImpl implements
034        FormComponentContributorContext
035{
036    private final ClassResolver _resolver;
037
038    private final PageRenderSupport _pageRenderSupport;
039
040    private final IFormComponent _field;
041
042    private final IForm _form;
043
044    private final String _formId;
045
046    /**
047     * Used only for testing.
048     */
049
050    FormComponentContributorContextImpl(IFormComponent field)
051    {
052        super(field, Locale.ENGLISH);
053
054        _field = field;
055        _resolver = null;
056        _formId = null;
057        _pageRenderSupport = null;
058        _form = null;
059    }
060
061    public FormComponentContributorContextImpl(Locale locale, IRequestCycle cycle,
062            IFormComponent field)
063    {
064        super(field, locale);
065
066        _field = field;
067        _form = field.getForm();
068        _formId = _form.getName();
069
070        _resolver = cycle.getInfrastructure().getClassResolver();
071
072        _pageRenderSupport = TapestryUtils.getPageRenderSupport(cycle, field);
073    }
074
075    public void includeClasspathScript(String path)
076    {
077        Resource resource = new ClasspathResource(_resolver, path);
078
079        _pageRenderSupport.addExternalScript(resource);
080    }
081
082    public void addSubmitHandler(String submitListener)
083    {
084        _pageRenderSupport.addInitializationScript("Tapestry.onsubmit('" + _formId + "', "
085                + submitListener + ");");
086    }
087
088    public void registerForFocus(int priority)
089    {
090        _form.registerForFocus(_field, priority);
091    }
092
093}