/*
* Copyright (c) 2011-2012 Lockheed Martin Corporation
*
* 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.eurekastreams.web.client.ui.connect.widget;
import java.util.HashMap;
import org.eurekastreams.server.domain.Page;
import org.eurekastreams.server.domain.stream.StreamScope.ScopeType;
import org.eurekastreams.web.client.events.EventBus;
import org.eurekastreams.web.client.events.StreamRequestEvent;
import org.eurekastreams.web.client.history.CreateUrlRequest;
import org.eurekastreams.web.client.ui.Session;
import org.eurekastreams.web.client.ui.common.stream.StreamJsonRequestFactory;
import org.eurekastreams.web.client.ui.common.stream.renderers.ShowRecipient;
import org.eurekastreams.web.client.ui.common.stream.renderers.StreamMessageItemRenderer;
import org.eurekastreams.web.client.ui.connect.support.StreamPanel;
import org.eurekastreams.web.client.ui.pages.master.StaticResourceBundle;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONValue;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Hyperlink;
/**
* Widget displaying a basic read-only stream.
*/
public class ReadStreamWidget extends Composite
{
/** For building link to stream from the query. */
private static HashMap<String, Page> scopeToPageMap = new HashMap<String, Page>();
static
{
scopeToPageMap.put(ScopeType.PERSON.name(), Page.PEOPLE);
scopeToPageMap.put(ScopeType.GROUP.name(), Page.GROUPS);
}
/**
* Constructor.
*
* @param jsonRequest
* Stream query as a JSON string.
*/
public ReadStreamWidget(final String jsonRequest)
{
final StreamPanel streamPanel = new StreamPanel(ShowRecipient.YES, new StreamMessageItemRenderer(
ShowRecipient.YES)
{
{
setCreatePermalink(false);
}
});
streamPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().embeddedWidget());
streamPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().eurekaConnectReadStreamWidget());
CreateUrlRequest linkInfo = determineStreamLink(jsonRequest);
if (linkInfo != null)
{
String token = Session.getInstance().generateUrl(linkInfo);
Hyperlink link = new Hyperlink("Go to Stream", token);
link.addStyleName(StaticResourceBundle.INSTANCE.coreCss().goToStreamLink());
FlowPanel panel = new FlowPanel();
panel.add(link);
streamPanel.add(panel); // cheating somewhat here
}
initWidget(streamPanel);
EventBus.getInstance().notifyObservers(new StreamRequestEvent("", jsonRequest));
}
/**
* Determines the page/view within Eureka to link to for the given stream request.
*
* @param jsonRequestString
* The JSON activity query request.
* @return URL request for stream page; null to skip link.
*/
private CreateUrlRequest determineStreamLink(final String jsonRequestString)
{
try
{
JSONObject request = StreamJsonRequestFactory.getJSONRequest(jsonRequestString);
JSONObject query = request.get("query").isObject();
JSONValue value = query.get("recipient");
if (value != null)
{
JSONArray recipients = value.isArray();
if (recipients.size() == 1)
{
JSONObject obj = recipients.get(0).isObject();
String type = obj.get("type").isString().stringValue();
Page page = scopeToPageMap.get(type);
if (page != null)
{
String name = obj.get("name").isString().stringValue();
CreateUrlRequest info = new CreateUrlRequest(page, name);
if (query.containsKey("keywords"))
{
info.getParameters().put("search", query.get("keywords").isString().stringValue());
}
return info;
}
}
}
}
catch (Exception ex)
{
int makeCheckstyleShutUp = 1;
}
return null;
}
}