inputtag.java

exTreme taglib的使用

/*
 * Copyright 2004 original author or authors.
 *
 * Licensed 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.extremecomponents.table.tag;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

import org.extremecomponents.table.bean.Attributes;
import org.extremecomponents.table.bean.Input;

/**
 * @jsp.tag name="input" display-name="InputTag" body-content="JSP"
 *          description="Put hidden field, submit or button in the form."
 * 
 * @author jeff johnston
 */
public class InputTag extends TagSupport implements ExtendedAttributes {
    private String type;
    private String name;
    private String value;
    private String onclick;

    /**
     * @jsp.attribute description="The type of html input to create. The valid
     *                types are hidden, button, and submit." required="true"
     *                rtexprvalue="true"
     */
    public String getType() {
        return TagUtils.evaluateExpressionAsString("type", type, this, pageContext);
    }

    public void setType(String type) {
        this.type = type;
    }

    /**
     * @jsp.attribute description="The name of the field." required="true"
     *                rtexprvalue="true"
     */
    public String getName() {
        return TagUtils.evaluateExpressionAsString("name", name, this, pageContext);
    }

    public void setName(String name) {
        this.name = name;
    }

    /**
     * @jsp.attribute description="The value of the field." required="true"
     *                rtexprvalue="true"
     */
    public String getValue() {
        return TagUtils.evaluateExpressionAsString("value", value, this, pageContext);
    }

    public void setValue(String value) {
        this.value = value;
    }

    /**
     * @jsp.attribute description="The javascript to invoke when clicking on a
     *                submit or button." required="false" rtexprvalue="true"
     */
    public String getOnclick() {
        return TagUtils.evaluateExpressionAsString("onclick", onclick, this, pageContext);
    }

    public void setOnclick(String onclick) {
        this.onclick = onclick;
    }

    public int doEndTag()
            throws JspException {
        Input input = new Input();
        input.addAttribute(Input.TYPE, getType());
        input.addAttribute(Input.NAME, getName());
        input.addAttribute(Input.VALUE, getValue());
        input.addAttribute(Input.ONCLICK, getOnclick());
        addExtendedAttributes(input);
        TagUtils.getModel(this).getFormHandler().addInput(input);

        return EVAL_PAGE;
    }

    public void addExtendedAttributes(Attributes attributes)
            throws JspException {
    }

    public void release() {
        type = null;
        name = null;
        value = null;
        onclick = null;
        super.release();
    }
}