/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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 com.vaadin.tests;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Component;
import com.vaadin.ui.Label;
import com.vaadin.ui.LegacyWindow;
import com.vaadin.ui.Panel;
import com.vaadin.ui.VerticalLayout;
public class TestSetVisibleAndCaching extends
com.vaadin.server.LegacyApplication {
Panel panelA = new Panel("Panel A");
Panel panelB = new Panel("Panel B");
Panel panelC = new Panel("Panel C");
Button buttonNextPanel = new Button("Show next panel");
int selectedPanel = 0;
@Override
public void init() {
final LegacyWindow mainWindow = new LegacyWindow(
"TestSetVisibleAndCaching");
setMainWindow(mainWindow);
panelA.setContent(wrapInPanelLayout(new Label(
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA")));
panelB.setContent(wrapInPanelLayout(new Label(
"BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB")));
panelC.setContent(wrapInPanelLayout(new Label(
"CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC")));
mainWindow
.addComponent(new Label(
"Inspect transfered data from server to "
+ "client using firebug (http request / response cycles)."
+ " See how widgets are re-used,"
+ " after each panel is once shown in GUI then"
+ " their contents are not resend."));
mainWindow.addComponent(buttonNextPanel);
mainWindow.addComponent(panelA);
mainWindow.addComponent(panelB);
mainWindow.addComponent(panelC);
selectPanel(selectedPanel);
buttonNextPanel.addListener(new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
selectedPanel++;
if (selectedPanel > 2) {
selectedPanel = 0;
}
selectPanel(selectedPanel);
}
});
}
private VerticalLayout wrapInPanelLayout(Component component) {
VerticalLayout layout = new VerticalLayout();
layout.setMargin(true);
layout.addComponent(component);
return layout;
}
private void selectPanel(int selectedPanel) {
System.err.println("Selecting panel " + selectedPanel);
switch (selectedPanel) {
case 0:
panelA.setVisible(true);
panelB.setVisible(false);
panelC.setVisible(false);
break;
case 1:
panelA.setVisible(false);
panelB.setVisible(true);
panelC.setVisible(false);
break;
case 2:
panelA.setVisible(false);
panelB.setVisible(false);
panelC.setVisible(true);
break;
}
}
}