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package com.vaadin.tests.tickets;
import java.util.HashMap;
import java.util.Map;
import com.vaadin.LegacyApplication;
import com.vaadin.server.Page;
import com.vaadin.server.Page.FragmentChangedEvent;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Component;
import com.vaadin.ui.Label;
import com.vaadin.ui.Panel;
import com.vaadin.ui.TextField;
import com.vaadin.ui.UI.LegacyWindow;
import com.vaadin.ui.VerticalLayout;
public class Ticket34 extends LegacyApplication {
private Map<String, Component> views = new HashMap<String, Component>();
private VerticalLayout mainLayout;
private Component currentView;
@Override
public void init() {
buildViews(new String[] { "main", "view2", "view3" });
mainLayout = new VerticalLayout();
mainLayout.setSizeFull();
final LegacyWindow mainWin = new LegacyWindow(
"Test app for URI fragment management/reading", mainLayout);
setMainWindow(mainWin);
mainWin.getPage().addListener(new Page.FragmentChangedListener() {
@Override
public void fragmentChanged(FragmentChangedEvent event) {
getMainWindow().showNotification(
"Fragment now: " + event.getFragment());
// try to change to view mapped by fragment string
setView(event.getFragment());
}
});
setView("main");
}
private void setView(String string) {
Component component = views.get(string);
if (component == null) {
getMainWindow().showNotification(
"View called " + string + " not found!");
} else if (component != currentView) {
if (currentView != null) {
mainLayout.replaceComponent(currentView, component);
} else {
mainLayout.addComponent(component);
}
// give all extra space for view
mainLayout.setExpandRatio(component, 1);
currentView = component;
}
}
private void buildViews(String[] strings) {
for (String string : strings) {
Panel p = new Panel(string);
p.setSizeFull();
((VerticalLayout) p.getContent()).setSpacing(true);
p.addComponent(new Label("This is a simple test case for "
+ "UriFragmentReader that can be used for"
+ " adding linking, back/forward button "
+ "and history support for ajax application. "));
StringBuffer sb = new StringBuffer();
sb.append("Available views : ");
for (String key : strings) {
sb.append(key);
sb.append(" ");
}
sb.append("Application will change to them from uri "
+ "fragment or server initiated via textfield below.");
p.addComponent(new Label(sb.toString()));
final TextField tf = new TextField(
"Type view name (will change to that "
+ "view and change the uri fragment)");
p.addComponent(tf);
Button b = new Button("Go!");
p.addComponent(b);
b.addListener(new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
String viewName = tf.getValue().toString();
// fragmentChangedListener will change the view if possible
event.getButton().getUI().getPage().setFragment(viewName);
}
});
views.put(string, p);
}
}
}
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