001// Copyright 2006, 2007, 2008, 2009, 2010, 2011 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.internal.services;
016
017import org.apache.tapestry5.corelib.components.Form;
018import org.apache.tapestry5.corelib.components.FormInjector;
019import org.apache.tapestry5.corelib.components.Zone;
020import org.apache.tapestry5.services.javascript.JavaScriptStack;
021
022/**
023 * Constants used when processing requests from the client web browser.
024 */
025public final class RequestConstants
026{
027
028    /**
029     * Virtual folder name for assets that are actually stored in the context, but are exposed (much like classpath
030     * assets) to gain far-future expires headers and automatic content compression.
031     *
032     * @since 5.1.0.0
033     */
034    public static final String CONTEXT_FOLDER = "ctx";
035
036    /**
037     * Folder for combined {@link JavaScriptStack} JavaScript files. The path consists of the locale (as a folder) and
038     * the name
039     * of the stack (suffixed with ".js").
040     *
041     * @since 5.2.0
042     */
043    public static final String STACK_FOLDER = "stack";
044
045    /**
046     * Name of parameter, in an Ajax update, that identifies the client-side id of the {@link Form} being extended. Used
047     * with {@link Zone}, {@link FormInjector} and other similar components that may be contained within a form.
048     *
049     * @since 5.2.0
050     */
051    public static final String FORM_CLIENTID_PARAMETER = "t:formid";
052
053    /**
054     * The server-side part of {@link #FORM_CLIENTID_PARAMETER} identifying the server-side component id.
055     *
056     * @since 5.2.0
057     */
058    public static final String FORM_COMPONENTID_PARAMETER = "t:formcomponentid";
059}