core/src/main/java/org/apache/struts2/components/TextField.java

/*
 * 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.struts2.components;

import com.opensymphony.xwork2.util.ValueStack;
import org.apache.struts2.views.annotations.StrutsTag;
import org.apache.struts2.views.annotations.StrutsTagAttribute;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * <!-- START SNIPPET: javadoc -->
 * <p>Render an HTML input field of type text</p>
 * <!-- END SNIPPET: javadoc -->
 *
 * <p><b>Examples</b></p>
 * <p>
 * <!-- START SNIPPET: exdescription -->
 * In this example, a text control for the "user" property is rendered. The label is also retrieved from a ResourceBundle via the key attribute.
 * <!-- END SNIPPET: exdescription -->
 * </p>
 *
 * <pre>
 * <!-- START SNIPPET: example -->
 * &lt;s:textfield key="user" /&gt;
 * <!-- END SNIPPET: example -->
 * </pre>
 *
 * <pre>
 * <!-- START SNIPPET: example2 -->
 * &lt;s:textfield name="user" label="User Name" /&gt;
 * <!-- END SNIPPET: example -->
 * </pre>
 */
@StrutsTag(
    name="textfield",
    tldTagClass="org.apache.struts2.views.jsp.ui.TextFieldTag",
    description="Render an HTML input field of type text",
    allowDynamicAttributes=true)
public class TextField extends UIBean {
    /**
     * The name of the default template for the TextFieldTag
     */
    final public static String TEMPLATE = "text";


    protected String maxlength;
    protected String readonly;
    protected String size;
    protected String type;

    public TextField(ValueStack stack, HttpServletRequest request, HttpServletResponse response) {
        super(stack, request, response);
    }

    protected String getDefaultTemplate() {
        return TEMPLATE;
    }

    protected void evaluateExtraParams() {
        super.evaluateExtraParams();

        if (size != null) {
            addParameter("size", findString(size));
        }

        if (maxlength != null) {
            addParameter("maxlength", findString(maxlength));
        }

        if (readonly != null) {
            addParameter("readonly", findValue(readonly, Boolean.class));
        }

        if (type != null) {
            addParameter("type", findString(type));
        }

    }

    @StrutsTagAttribute(description="HTML maxlength attribute", type="Integer")
    public void setMaxlength(String maxlength) {
        this.maxlength = maxlength;
    }

    @StrutsTagAttribute(description="Deprecated. Use maxlength instead.", type="Integer")
    public void setMaxLength(String maxlength) {
        this.maxlength = maxlength;
    }

    @StrutsTagAttribute(description="Whether the input is readonly", type="Boolean", defaultValue="false")
    public void setReadonly(String readonly) {
        this.readonly = readonly;
    }

    @StrutsTagAttribute(description="HTML size attribute",  type="Integer")
    public void setSize(String size) {
        this.size = size;
    }

    @StrutsTagAttribute(description="Specifies the html5 type element to display. e.g. text, email, url", defaultValue="text")
    public void setType(String type) {
        this.type = type;
    }
}