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Javadoc and polish of Ajax support classes.

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This commit is contained in:
Jeremy Grelle
2008-04-28 18:52:39 +00:00
parent b7e4edf222
commit 732387ec92
5 changed files with 95 additions and 31 deletions
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1
spring-js/src/main/java/org/springframework/js/ajax/AjaxHandler.java
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@@ -24,6 +24,7 @@ import javax.servlet.http.HttpServletResponse;
/**
* Strategy interface that encapsulates knowledge about a client-side ajax system and how to communicate with that
* system.
*
* @author Keith Donald
*/
public interface AjaxHandler {

31
spring-js/src/main/java/org/springframework/js/ajax/AjaxRedirectView.java
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@@ -1,31 +0,0 @@
package org.springframework.js.ajax;
import java.io.IOException;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.support.RequestContextUtils;
import org.springframework.web.servlet.view.RedirectView;
public class AjaxRedirectView extends RedirectView implements View {
private AjaxHandler ajaxHandler = new SpringJavascriptAjaxHandler();
public AjaxRedirectView(String redirectUrl, boolean redirectContextRelative, boolean redirectHttp10Compatible) {
super(redirectUrl, redirectContextRelative, redirectHttp10Compatible);
}
protected void sendRedirect(HttpServletRequest request, HttpServletResponse response, String targetUrl,
boolean http10Compatible) throws IOException {
ServletContext context = RequestContextUtils.getWebApplicationContext(request).getServletContext();
if (ajaxHandler.isAjaxRequest(context, request, response)) {
ajaxHandler.sendAjaxRedirect(context, request, response, targetUrl, false);
} else {
super.sendRedirect(request, response, targetUrl, http10Compatible);
}
}
}

48
spring-js/src/main/java/org/springframework/js/ajax/AjaxUrlBasedViewResolver.java
View File

@@ -1,10 +1,38 @@
/*
* Copyright 2004-2008 the original author or authors.
*
* 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.springframework.js.ajax;
import java.io.IOException;
import java.util.Locale;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.support.RequestContextUtils;
import org.springframework.web.servlet.view.RedirectView;
import org.springframework.web.servlet.view.UrlBasedViewResolver;
/**
* View resolver that provides special view resolution for Spring Javascript Ajax requests.
*
* @author Jeremy Grelle
*
*/
public class AjaxUrlBasedViewResolver extends UrlBasedViewResolver {
/**
@@ -25,4 +53,24 @@ public class AjaxUrlBasedViewResolver extends UrlBasedViewResolver {
}
return super.createView(viewName, locale);
}
private class AjaxRedirectView extends RedirectView implements View {
private AjaxHandler ajaxHandler = new SpringJavascriptAjaxHandler();
public AjaxRedirectView(String redirectUrl, boolean redirectContextRelative, boolean redirectHttp10Compatible) {
super(redirectUrl, redirectContextRelative, redirectHttp10Compatible);
}
protected void sendRedirect(HttpServletRequest request, HttpServletResponse response, String targetUrl,
boolean http10Compatible) throws IOException {
ServletContext context = RequestContextUtils.getWebApplicationContext(request).getServletContext();
if (ajaxHandler.isAjaxRequest(context, request, response)) {
ajaxHandler.sendAjaxRedirect(context, request, response, targetUrl, false);
} else {
super.sendRedirect(request, response, targetUrl, http10Compatible);
}
}
}
}

34
spring-js/src/main/java/org/springframework/js/ajax/tiles2/AjaxTilesView.java
View File

@@ -1,3 +1,18 @@
/*
* Copyright 2004-2008 the original author or authors.
*
* 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.springframework.js.ajax.tiles2;
import java.util.HashMap;
@@ -22,6 +37,17 @@ import org.springframework.web.servlet.support.JstlUtils;
import org.springframework.web.servlet.support.RequestContext;
import org.springframework.web.servlet.view.tiles2.TilesView;
/**
* Tiles view implementation that is able to handle partial rendering for Spring Javascript Ajax requests.
*
* <p>
* This implementation uses the {@link SpringJavascriptAjaxHandler} by default to determine whether the current request
* is an Ajax request. On an Ajax request, a "fragments" parameter will be extracted from the request in order to
* determine which attributes to render from the current tiles view.
* </p>
*
* @author Jeremy Grelle
*/
public class AjaxTilesView extends TilesView {
private static final String FRAGMENTS_PARAM = "fragments";
@@ -81,4 +107,12 @@ public class AjaxTilesView extends TilesView {
}
}
public AjaxHandler getAjaxHandler() {
return ajaxHandler;
}
public void setAjaxHandler(AjaxHandler ajaxHandler) {
this.ajaxHandler = ajaxHandler;
}
}