org.apache.wicket.DefaultMarkupIdGenerator Maven / Gradle / Ivy
Go to download
A module that creates a .jar from the classes in wicket, wicket-util and wicket-request modules in order
to create a valid OSGi bundle of the wicket framework.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.wicket;
import org.apache.wicket.util.string.Strings;
/**
* An implementation of IMarkupIdGenerator that uses the Session to generate
* sequence numbers for the component markup ids.
* As a prefix for the generated markup id in development mode it uses the component id
* and in production mode the string id.
*/
public class DefaultMarkupIdGenerator implements IMarkupIdGenerator
{
@Override
public String generateMarkupId(Component component, boolean createIfDoesNotExist)
{
Object storedMarkupId = component.getMarkupIdImpl();
if (storedMarkupId instanceof String)
{
return (String)storedMarkupId;
}
if (storedMarkupId == null && createIfDoesNotExist == false)
{
return null;
}
Session session = component.getSession();
int generatedMarkupId = storedMarkupId instanceof Integer ? (Integer)storedMarkupId
: session.nextSequenceValue();
if (generatedMarkupId == 0xAD)
{
// WICKET-4559 skip suffix 'ad' because some ad-blocking solutions may hide the component
generatedMarkupId = session.nextSequenceValue();
}
if (storedMarkupId == null)
{
component.setMarkupIdImpl(generatedMarkupId);
}
String markupIdPrefix = "id";
if (component.getApplication().usesDevelopmentConfig())
{
// in non-deployment mode we make the markup id include component id
// so it is easier to debug
markupIdPrefix = component.getId();
}
String markupIdPostfix = Integer.toHexString(generatedMarkupId).toLowerCase();
String markupId = markupIdPrefix + markupIdPostfix;
// make sure id is compliant with w3c requirements (starts with a letter)
char c = markupId.charAt(0);
if (!Character.isLetter(c))
{
markupId = "id" + markupId;
}
// escape some noncompliant characters
markupId = Strings.replaceAll(markupId, "_", "__").toString();
markupId = markupId.replace('.', '_');
markupId = markupId.replace('-', '_');
markupId = markupId.replace(' ', '_');
return markupId;
}
}