/*
* Copyright (c) 2009-2012 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.support;
import org.eurekastreams.web.client.events.EventBus;
import org.eurekastreams.web.client.events.Observer;
import org.eurekastreams.web.client.events.StreamSearchBeginEvent;
import org.eurekastreams.web.client.ui.common.LabeledTextBox;
import org.eurekastreams.web.client.ui.pages.master.StaticResourceBundle;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Label;
/**
* Widget with a text box used to initiate a stream search. NOTE: This widget is only used with the Eureka Connect
* widgets.
*/
public class StreamSearchBoxWidget extends Composite
{
/** The search button. */
Label searchGo = new Label("Search");
/** The text box for entering the search term. */
LabeledTextBox searchTerm = new LabeledTextBox("search all activity");
/**
* Constructor.
*/
public StreamSearchBoxWidget()
{
FlowPanel mainPanel = new FlowPanel();
mainPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().searchBox());
mainPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().searchList());
searchTerm.setTitle("search this stream");
mainPanel.add(searchTerm);
searchGo.addStyleName(StaticResourceBundle.INSTANCE.coreCss().searchListButton());
mainPanel.add(searchGo);
initWidget(mainPanel);
searchGo.addClickHandler(new ClickHandler()
{
public void onClick(final ClickEvent arg0)
{
onSearch();
}
});
searchTerm.addKeyUpHandler(new KeyUpHandler()
{
public void onKeyUp(final KeyUpEvent ev)
{
if (ev.getNativeKeyCode() == KeyCodes.KEY_ENTER && !ev.isAnyModifierKeyDown()
&& searchTerm.getText().length() > 0)
{
onSearch();
}
}
});
EventBus.getInstance().addObserver(StreamSearchBeginEvent.class, new Observer<StreamSearchBeginEvent>()
{
public void update(final StreamSearchBeginEvent ev)
{
if (ev.getSearchText() == null)
{
onSearchCanceled();
}
}
});
}
/**
* When the search potentially changes.
*/
private void onSearch()
{
EventBus.getInstance().notifyObservers(new StreamSearchBeginEvent(searchTerm.getText()));
}
/**
* Update search widget.
*
* @param inSearchTerm
* the search term.
*/
public void setSearchTerm(final String inSearchTerm)
{
searchTerm.setText(inSearchTerm);
searchTerm.checkBox();
}
/**
* Called when a search is canceled.
*/
public void onSearchCanceled()
{
searchTerm.setText("");
searchTerm.checkBox();
}
/**
* Sets if the search can be changed.
*
* @param canChange
* if the search can be changed.
*/
public void setCanChange(final boolean canChange)
{
searchTerm.setVisible(canChange);
searchGo.setVisible(canChange);
}
}