/*
 * $Id: ELButtonTag.java 123585 2004-12-29 00:43:33Z martinc $ 
 *
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * 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.apache.strutsel.taglib.html;

import org.apache.struts.taglib.html.ButtonTag;
import javax.servlet.jsp.JspException;
import org.apache.strutsel.taglib.utils.EvalHelper;

/**
 * Renders an HTML BUTTON tag within the Struts framework.
 *<p>
 * This class is a subclass of the class
 * <code>org.apache.struts.taglib.html.ButtonTag</code> which provides most of
 * the described functionality.  This subclass allows all attribute values to
 * be specified as expressions utilizing the JavaServer Pages Standard Library
 * expression language.
 *
 * @version $Rev: 123585 $
 */
public class ELButtonTag extends ButtonTag {

    /**
     * Instance variable mapped to "accessKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String accessKeyExpr;
    /**
     * Instance variable mapped to "alt" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String altExpr;
    /**
     * Instance variable mapped to "altKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String altKeyExpr;
    /**
     * Instance variable mapped to "bundle" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String bundleExpr;
    /**
     * Instance variable mapped to "disabled" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String disabledExpr;
    /**
     * Instance variable mapped to "indexed" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String indexedExpr;
    /**
     * Instance variable mapped to "onblur" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onblurExpr;
    /**
     * Instance variable mapped to "onchange" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onchangeExpr;
    /**
     * Instance variable mapped to "onclick" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onclickExpr;
    /**
     * Instance variable mapped to "ondblclick" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String ondblclickExpr;
    /**
     * Instance variable mapped to "onfocus" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onfocusExpr;
    /**
     * Instance variable mapped to "onkeydown" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onkeydownExpr;
    /**
     * Instance variable mapped to "onkeypress" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onkeypressExpr;
    /**
     * Instance variable mapped to "onkeyup" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onkeyupExpr;
    /**
     * Instance variable mapped to "onmousedown" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onmousedownExpr;
    /**
     * Instance variable mapped to "onmousemove" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onmousemoveExpr;
    /**
     * Instance variable mapped to "onmouseout" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onmouseoutExpr;
    /**
     * Instance variable mapped to "onmouseover" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onmouseoverExpr;
    /**
     * Instance variable mapped to "onmouseup" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String onmouseupExpr;
    /**
     * Instance variable mapped to "property" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String propertyExpr;
    /**
     * Instance variable mapped to "style" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String styleExpr;
    /**
     * Instance variable mapped to "styleClass" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String styleClassExpr;
    /**
     * Instance variable mapped to "styleId" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String styleIdExpr;
    /**
     * Instance variable mapped to "tabindex" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String tabindexExpr;
    /**
     * Instance variable mapped to "title" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String titleExpr;
    /**
     * Instance variable mapped to "titleKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String titleKeyExpr;
    /**
     * Instance variable mapped to "value" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    private String valueExpr;

    /**
     * Getter method for "accessKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getAccesskeyExpr() { return (accessKeyExpr); }
    /**
     * Getter method for "alt" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getAltExpr() { return (altExpr); }
    /**
     * Getter method for "altKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getAltKeyExpr() { return (altKeyExpr); }
    /**
     * Getter method for "bundle" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getBundleExpr() { return (bundleExpr); }
    /**
     * Getter method for "disabled" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getDisabledExpr() { return (disabledExpr); }
    /**
     * Getter method for "indexed" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getIndexedExpr() { return (indexedExpr); }
    /**
     * Getter method for "onblur" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnblurExpr() { return (onblurExpr); }
    /**
     * Getter method for "onchange" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnchangeExpr() { return (onchangeExpr); }
    /**
     * Getter method for "onclick" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnclickExpr() { return (onclickExpr); }
    /**
     * Getter method for "ondblclick" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOndblclickExpr() { return (ondblclickExpr); }
    /**
     * Getter method for "onfocus" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnfocusExpr() { return (onfocusExpr); }
    /**
     * Getter method for "onkeydown" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnkeydownExpr() { return (onkeydownExpr); }
    /**
     * Getter method for "onkeypress" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnkeypressExpr() { return (onkeypressExpr); }
    /**
     * Getter method for "onkeyup" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnkeyupExpr() { return (onkeyupExpr); }
    /**
     * Getter method for "onmousedown" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnmousedownExpr() { return (onmousedownExpr); }
    /**
     * Getter method for "onmousemove" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnmousemoveExpr() { return (onmousemoveExpr); }
    /**
     * Getter method for "onmouseout" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnmouseoutExpr() { return (onmouseoutExpr); }
    /**
     * Getter method for "onmouseover" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnmouseoverExpr() { return (onmouseoverExpr); }
    /**
     * Getter method for "onmouseup" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getOnmouseupExpr() { return (onmouseupExpr); }
    /**
     * Getter method for "property" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getPropertyExpr() { return (propertyExpr); }
    /**
     * Getter method for "style" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getStyleExpr() { return (styleExpr); }
    /**
     * Getter method for "styleClass" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getStyleClassExpr() { return (styleClassExpr); }
    /**
     * Getter method for "styleId" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getStyleIdExpr() { return (styleIdExpr); }
    /**
     * Getter method for "tabindex" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getTabindexExpr() { return (tabindexExpr); }
    /**
     * Getter method for "title" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getTitleExpr() { return (titleExpr); }
    /**
     * Getter method for "titleKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getTitleKeyExpr() { return (titleKeyExpr); }
    /**
     * Getter method for "value" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public String getValueExpr() { return (valueExpr); }

    /**
     * Setter method for "accessKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setAccesskeyExpr(String accessKeyExpr) { this.accessKeyExpr = accessKeyExpr; }
    /**
     * Setter method for "alt" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setAltExpr(String altExpr) { this.altExpr = altExpr; }
    /**
     * Setter method for "altKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setAltKeyExpr(String altKeyExpr) { this.altKeyExpr = altKeyExpr; }
    /**
     * Setter method for "bundle" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setBundleExpr(String bundleExpr) { this.bundleExpr = bundleExpr; }
    /**
     * Setter method for "disabled" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setDisabledExpr(String disabledExpr) { this.disabledExpr = disabledExpr; }
    /**
     * Setter method for "indexed" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setIndexedExpr(String indexedExpr) { this.indexedExpr = indexedExpr; }
    /**
     * Setter method for "onblur" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnblurExpr(String onblurExpr) { this.onblurExpr = onblurExpr; }
    /**
     * Setter method for "onchange" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnchangeExpr(String onchangeExpr) { this.onchangeExpr = onchangeExpr; }
    /**
     * Setter method for "onclick" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnclickExpr(String onclickExpr) { this.onclickExpr = onclickExpr; }
    /**
     * Setter method for "ondblclick" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOndblclickExpr(String ondblclickExpr) { this.ondblclickExpr = ondblclickExpr; }
    /**
     * Setter method for "onfocus" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnfocusExpr(String onfocusExpr) { this.onfocusExpr = onfocusExpr; }
    /**
     * Setter method for "onkeydown" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnkeydownExpr(String onkeydownExpr) { this.onkeydownExpr = onkeydownExpr; }
    /**
     * Setter method for "onkeypress" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnkeypressExpr(String onkeypressExpr) { this.onkeypressExpr = onkeypressExpr; }
    /**
     * Setter method for "onkeyup" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnkeyupExpr(String onkeyupExpr) { this.onkeyupExpr = onkeyupExpr; }
    /**
     * Setter method for "onmousedown" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnmousedownExpr(String onmousedownExpr) { this.onmousedownExpr = onmousedownExpr; }
    /**
     * Setter method for "onmousemove" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnmousemoveExpr(String onmousemoveExpr) { this.onmousemoveExpr = onmousemoveExpr; }
    /**
     * Setter method for "onmouseout" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnmouseoutExpr(String onmouseoutExpr) { this.onmouseoutExpr = onmouseoutExpr; }
    /**
     * Setter method for "onmouseover" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnmouseoverExpr(String onmouseoverExpr) { this.onmouseoverExpr = onmouseoverExpr; }
    /**
     * Setter method for "onmouseup" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setOnmouseupExpr(String onmouseupExpr) { this.onmouseupExpr = onmouseupExpr; }
    /**
     * Setter method for "property" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setPropertyExpr(String propertyExpr) { this.propertyExpr = propertyExpr; }
    /**
     * Setter method for "style" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setStyleExpr(String styleExpr) { this.styleExpr = styleExpr; }
    /**
     * Setter method for "styleClass" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setStyleClassExpr(String styleClassExpr) { this.styleClassExpr = styleClassExpr; }
    /**
     * Setter method for "styleId" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setStyleIdExpr(String styleIdExpr) { this.styleIdExpr = styleIdExpr; }
    /**
     * Setter method for "tabindex" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setTabindexExpr(String tabindexExpr) { this.tabindexExpr = tabindexExpr; }
    /**
     * Setter method for "title" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setTitleExpr(String titleExpr) { this.titleExpr = titleExpr; }
    /**
     * Setter method for "titleKey" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setTitleKeyExpr(String titleKeyExpr) { this.titleKeyExpr = titleKeyExpr; }
    /**
     * Setter method for "value" tag attribute.
     * (Mapping set in associated BeanInfo class.)
     */
    public void setValueExpr(String valueExpr) { this.valueExpr = valueExpr; }

    /**
     * Resets attribute values for tag reuse.
     */
    public void release()
    {
        super.release();
        setAccesskeyExpr(null);
        setAltExpr(null);
        setAltKeyExpr(null);
        setBundleExpr(null);
        setDisabledExpr(null);
        setIndexedExpr(null);
        setOnblurExpr(null);
        setOnchangeExpr(null);
        setOnclickExpr(null);
        setOndblclickExpr(null);
        setOnfocusExpr(null);
        setOnkeydownExpr(null);
        setOnkeypressExpr(null);
        setOnkeyupExpr(null);
        setOnmousedownExpr(null);
        setOnmousemoveExpr(null);
        setOnmouseoutExpr(null);
        setOnmouseoverExpr(null);
        setOnmouseupExpr(null);
        setPropertyExpr(null);
        setStyleExpr(null);
        setStyleClassExpr(null);
        setStyleIdExpr(null);
        setTabindexExpr(null);
        setTitleExpr(null);
        setTitleKeyExpr(null);
        setValueExpr(null);
    }

    /**
     * Process the start tag.
     *
     * @exception JspException if a JSP exception has occurred
     */
    public int doStartTag() throws JspException {
        evaluateExpressions();
        return (super.doStartTag());
    }

    /**
     * Processes all attribute values which use the JSTL expression evaluation
     * engine to determine their values.
     *
     * @exception JspException if a JSP exception has occurred
     */
    private void evaluateExpressions() throws JspException {
        String  string  = null;
        Boolean bool    = null;

        if ((string = EvalHelper.evalString("accessKey", getAccesskeyExpr(),
                                            this, pageContext)) != null)
            setAccesskey(string);

        if ((string = EvalHelper.evalString("alt", getAltExpr(),
                                            this, pageContext)) != null)
            setAlt(string);

        if ((string = EvalHelper.evalString("altKey", getAltKeyExpr(),
                                            this, pageContext)) != null)
            setAltKey(string);

        if ((string = EvalHelper.evalString("bundle", getBundleExpr(),
                                            this, pageContext)) != null)
            setBundle(string);

        if ((bool = EvalHelper.evalBoolean("disabled", getDisabledExpr(),
                                           this, pageContext)) != null)
            setDisabled(bool.booleanValue());

        if ((bool = EvalHelper.evalBoolean("indexed", getIndexedExpr(),
                                           this, pageContext)) != null)
            setIndexed(bool.booleanValue());

        if ((string = EvalHelper.evalString("onblur", getOnblurExpr(),
                                            this, pageContext)) != null)
            setOnblur(string);

        if ((string = EvalHelper.evalString("onchange", getOnchangeExpr(),
                                            this, pageContext)) != null)
            setOnchange(string);

        if ((string = EvalHelper.evalString("onclick", getOnclickExpr(),
                                            this, pageContext)) != null)
            setOnclick(string);

        if ((string = EvalHelper.evalString("ondblclick", getOndblclickExpr(),
                                            this, pageContext)) != null)
            setOndblclick(string);

        if ((string = EvalHelper.evalString("onfocus", getOnfocusExpr(),
                                            this, pageContext)) != null)
            setOnfocus(string);

        if ((string = EvalHelper.evalString("onkeydown", getOnkeydownExpr(),
                                            this, pageContext)) != null)
            setOnkeydown(string);

        if ((string = EvalHelper.evalString("onkeypress", getOnkeypressExpr(),
                                            this, pageContext)) != null)
            setOnkeypress(string);

        if ((string = EvalHelper.evalString("onkeyup", getOnkeyupExpr(),
                                            this, pageContext)) != null)
            setOnkeyup(string);

        if ((string = EvalHelper.evalString("onmousedown", getOnmousedownExpr(),
                                            this, pageContext)) != null)
            setOnmousedown(string);

        if ((string = EvalHelper.evalString("onmousemove", getOnmousemoveExpr(),
                                            this, pageContext)) != null)
            setOnmousemove(string);

        if ((string = EvalHelper.evalString("onmouseout", getOnmouseoutExpr(),
                                            this, pageContext)) != null)
            setOnmouseout(string);

        if ((string = EvalHelper.evalString("onmouseover", getOnmouseoverExpr(),
                                            this, pageContext)) != null)
            setOnmouseover(string);

        if ((string = EvalHelper.evalString("onmouseup", getOnmouseupExpr(),
                                            this, pageContext)) != null)
            setOnmouseup(string);

        if ((string = EvalHelper.evalString("property", getPropertyExpr(),
                                            this, pageContext)) != null)
            setProperty(string);

        if ((string = EvalHelper.evalString("style", getStyleExpr(),
                                            this, pageContext)) != null)
            setStyle(string);

        if ((string = EvalHelper.evalString("styleClass", getStyleClassExpr(),
                                            this, pageContext)) != null)
            setStyleClass(string);

        if ((string = EvalHelper.evalString("styleId", getStyleIdExpr(),
                                            this, pageContext)) != null)
            setStyleId(string);

        if ((string = EvalHelper.evalString("tabindex", getTabindexExpr(),
                                            this, pageContext)) != null)
            setTabindex(string);

        if ((string = EvalHelper.evalString("title", getTitleExpr(),
                                            this, pageContext)) != null)
            setTitle(string);

        if ((string = EvalHelper.evalString("titleKey", getTitleKeyExpr(),
                                            this, pageContext)) != null)
            setTitleKey(string);

        if ((string = EvalHelper.evalString("value", getValueExpr(),
                                            this, pageContext)) != null)
            setValue(string);
    }
}
