org.apache.wicket.markup.html.form.TextField.java Source code

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Here is the source code for org.apache.wicket.markup.html.form.TextField.java

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/*
 * 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.markup.html.form;

import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.model.IModel;

/**
 * A simple text field.
 * 
 * @author Jonathan Locke
 * 
 * @param <T>
 *            The model object type
 */
public class TextField<T> extends AbstractTextComponent<T> {
    private static final long serialVersionUID = 1L;

    /**
     * @see org.apache.wicket.Component#Component(String)
     */
    public TextField(final String id) {
        this(id, null, null);
    }

    /**
     * @param id
     *            See Component
     * @param type
     *            Type for field validation
     */
    public TextField(final String id, final Class<T> type) {
        this(id, null, type);
    }

    /**
     * @param id
     * @param model
     * @see org.apache.wicket.Component#Component(String, IModel)
     */
    public TextField(final String id, final IModel<T> model) {
        this(id, model, null);
    }

    /**
     * @param id
     *            See Component
     * @param model
     *            See Component
     * @param type
     *            The type to use when updating the model for this text field
     * @see org.apache.wicket.Component#Component(String, IModel)
     */
    public TextField(final String id, IModel<T> model, Class<T> type) {
        super(id, model);
        setType(type);

        // don't double encode the value. it is encoded by ComponentTag.writeOutput()
        setEscapeModelStrings(false);
    }

    /**
     * Processes the component tag.
     * 
     * @param tag
     *            Tag to modify
     * @see org.apache.wicket.Component#onComponentTag(ComponentTag)
     */
    @Override
    protected void onComponentTag(final ComponentTag tag) {
        // Must be attached to an input tag
        checkComponentTag(tag, "input");

        // check for text type
        String[] inputTypes = getInputTypes();
        if (inputTypes != null) {
            checkComponentTagAttribute(tag, "type", inputTypes);
        } else {
            if (tag.getAttributes().containsKey("type")) {
                checkComponentTagAttribute(tag, "type", "text");
            }
        }

        tag.put("value", getValue());

        // Default handling for component tag
        super.onComponentTag(tag);
    }

    /**
     * Subclass should override this method if this textfield is mapped on a different input type as
     * text. Like PasswordTextField or HiddenField.
     * 
     * @return The input type of this textfield, default is null
     */
    protected String[] getInputTypes() {
        return null;
    }
}