THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
If you are using Maven you can add the wicket-velocity dependency (otherwise you can download the jar from http://wicketstuff.org/maven/repository/org/apache/wicket/wicket-velocity/)
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<dependency>
<groupId>org.apache.wicket</groupId>
<artifactId>wicket-velocity</artifactId>
<version>${wicket.velocity.version}</version>
</dependency>
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Create a javascript file with a vm extension
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<script language="JavaScript">
function removeBlur(checked) {
if(checked) {
document.getElementById('${loginButtonId}').disabled = false;
} else {
document.getElementById('${loginButtonId}').disabled = true;
}
}
</script>
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In your web page constructor add a javascript velocity header contributor
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final Button loginButton = new Button("input-login-button", ...){...};
final Map<String, String> vars = new HashMap<String, String>(1); vars.put("loginButtonId", loginButton.getMarkupId());
return new VelocityHeaderContributor().add(new
VelocityJavascriptContributor(MyWebPage.class, "path/to/example-script.vm", Model.valueOf(vars), "nameOfScript"));
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The "loginButtonId" will be replaced by the generated wicket markup id in our a javascript file named "nameOfScript.js" for our MyWebPage.class