Vaadlets is a template engine for vaadin.
Imagine you can use a library like Facelets (Java Server Faces) in your Vaadin application.
The ui declaration in Vaadlets is xml/xsd based, so you have auto completion etc.
Please see the examples below.
- Java 7
- Maven 3
- Git
- Eclipse (m2eclipse, egit)
- A working internet connection
Clone the git repository using the URL on the Github home page:
$ git clone git@github.com:ahoehma/vaadlets.git
$ cd vaadlets
$ mvn install
I'm using eclipse with the power of m2eclipse (maven integration). Simply import the projects. That's it ;)
$ cd vaadlets-demo $ mvn jetty:run
Open browser http://localhost:8080/vaadlets-demo/
Simply add the following dependency to your Maven project:
<dependency>
<groupId>com.mymita</groupId>
<artifactId>vaadlets-addon</artifactId>
<version>0.0.1</version>
</dependency>
Vaadlet template:
<?xml version="1.0" encoding="UTF-8"?>
<vaadlets xmlns="http://www.mymita.com/vaadlets/1.0.0"
xmlns:core="http://www.mymita.com/vaadlets/core/1.0.0"
xmlns:layout="http://www.mymita.com/vaadlets/layout/1.0.0"
xmlns:ui="http://www.mymita.com/vaadlets/ui/1.0.0"
xmlns:input="http://www.mymita.com/vaadlets/input/1.0.0"
xmlns:addon="http://www.mymita.com/vaadlets/addon/1.0.0"
xmlns:xsd="http://www.w3.org/2001/XMLSchema-instance"
xsd:schemaLocation="http://www.mymita.com/vaadlets/1.0.0 http://www.mymita.com/xsd/vaadlets-1.0.0.xsd
http://www.mymita.com/vaadlets/core/1.0.0 http://www.mymita.com/xsd/vaadlets-core-1.0.0.xsd
http://www.mymita.com/vaadlets/layout/1.0.0 http://www.mymita.com/xsd/vaadlets-layout-1.0.0.xsd
http://www.mymita.com/vaadlets/ui/1.0.0 http://www.mymita.com/xsd/vaadlets-ui-1.0.0.xsd
http://www.mymita.com/vaadlets/input/1.0.0 http://www.mymita.com/xsd/vaadlets-input-1.0.0.xsd
http://www.mymita.com/vaadlets/addon/1.0.0 http://www.mymita.com/xsd/vaadlets-addon-1.0.0.xsd">
<ui:window caption="Vaadlets Editor">
<ui:window caption="Welcome" width="300px" height="200px" center="true" resizeable="false" modal="true">
<ui:label caption="Welcome to the Vaadlets DEMO Application"/>
</ui:window>
<ui:horizontalSplitPanel>
<layout:verticalLayout size-full="true" margin="true" spacing="true">
<ui:panel size-full="true" expand-ratio="1.0">
<layout:verticalLayout size-full="true" >
<addon:codeMirror id="editor" size-full="true" expand-ratio="1.0" code-style="XML" style-name="foobar"/>
</layout:verticalLayout>
</ui:panel>
<layout:horizontalLayout>
<input:button id="test" caption="Test Vaadlet"/>
<input:button id="reset" caption="Reset Vaadlet"/>
</layout:horizontalLayout>
</layout:verticalLayout>
<ui:panel id="content" size-full="true">
<layout:verticalLayout margin="true" size-full="true"/>
</ui:panel>
</ui:horizontalSplitPanel>
</ui:window>
</vaadlets>Vaadin application:
package com.mymita.vaadlets.demo;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.io.ClassPathResource;
import com.google.common.io.CharStreams;
import com.mymita.vaadlets.VaadletsBuilder;
import com.vaadin.Application;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Label;
import com.vaadin.ui.Panel;
import com.vaadin.ui.TextField;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;
public class AddonDemoApplication extends Application {
private static final Log LOG = LogFactory.getLog(AddonDemoApplication.class);
private static final long serialVersionUID = 4745768698981212574L;
private static VerticalLayout createStackTraceLabel(final Exception e) {
final VerticalLayout vl = new VerticalLayout();
vl.setMargin(true);
vl.addComponent(new Label("<h1>Error</h1>", Label.CONTENT_XHTML));
final StringWriter buf = new StringWriter();
e.printStackTrace(new PrintWriter(buf));
vl.addComponent(new Label(buf.toString(), Label.CONTENT_PREFORMATTED));
return vl;
}
private static void fillEditorWithDefaultXML(final VaadletsBuilder vaadlets) {
vaadlets.<Panel>getComponent("content").getContent().removeAllComponents();
final TextField editor = vaadlets.getComponent("editor");
try {
editor.setValue(CharStreams.toString(new InputStreamReader(new ClassPathResource("startingPoint.xml",
AddonDemoApplication.class).getInputStream(), "UTF-8")));
} catch (final IOException e) {
}
}
@Override
public void init() {
final VaadletsBuilder vaadlets = new VaadletsBuilder();
try {
vaadlets.build(new ClassPathResource("demo.xml", AddonDemoApplication.class).getInputStream());
} catch (final IOException e) {
LOG.error("error", e);
}
final Window root = (Window) vaadlets.getRoot();
setMainWindow(root);
final Button testButton = vaadlets.getComponent("test");
testButton.addListener(new ClickListener() {
@Override
public void buttonClick(final ClickEvent event) {
final Panel content = vaadlets.getComponent("content");
final TextField editor = vaadlets.getComponent("editor");
content.getContent().removeAllComponents();
try {
final VaadletsBuilder v = new VaadletsBuilder();
v.build(new ByteArrayInputStream(editor.toString().getBytes()));
if (v.getRoot() instanceof Window) {
final Window w = (Window) v.getRoot();
root.addWindow(w);
} else {
content.getContent().addComponent(v.getRoot());
}
} catch (final Exception e) {
LOG.error("error", e);
content.addComponent(createStackTraceLabel(e));
}
}
});
final Button resetButton = vaadlets.getComponent("reset");
resetButton.addListener(new ClickListener() {
@Override
public void buttonClick(final ClickEvent event) {
fillEditorWithDefaultXML(vaadlets);
}
});
fillEditorWithDefaultXML(vaadlets);
}
}- Initial release - in progress