At the moment the SubmitTag class is in our own package (com.RuntimeCollective.struts)
but it would be trivial to move it.
(I didn't integrate it into the struts:html tag library, cos I wasn't sure if it was appropriate)
Joe Faith http://www.runtime-collective.com T: (+44) 01273 234294 M: (+44) 07968 292064
Andy Noble wrote:Hi Joe,I would certainly be interested in your code for this tag, as I have decided
to make javascript a prerequisite for my project.Regards
Andy----- Original Message -----
From: Joe Faith <[EMAIL PROTECTED]>
To: Struts Developers List <[EMAIL PROTECTED]>
Sent: Thursday, November 15, 2001 10:08 AM
Subject: Re: [SUBMIT] LookupDispatchAction - how to handle multiple
html:submit buttons> We have also implemented a multiple submit button system; but in our
> case we wrote a custom tag that generates javascript that sets a property
> to a specified value and submits the form when you hit the button.
>
> The tags look something like:
>
> <my_submit property="formAction" value="delete" label="Delete this
> record"/>
> <my_submit property="formAction" value="save" label="Save changes"/>
> <my_submit property="formAction" value="copy" label="Copy this
record"/>
>
> etc
>
> A single action object can then use the value of formAction to decide what
to
> do in each case.
> This has the side-effect of reducing the number of Action classes needed.
>
> However, the tags generate javascript and I wasn't sure if this fitted the
> struts philosophy; so I
> haven't submitted the code changes. But if anyone was interested I could
make
> it available.
>
> Joe Faith
>
> Runtime Collective, Ltd
> T: (+44) 01273 234294
>
> Erik Hatcher wrote:
>
> > As promised earlier today, here is my contribution to the multiple
> > html:submit button saga (Ted, time to update your FAQ! :)....
>--
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For additional commands, e-mail: <mailto:[EMAIL PROTECTED]><?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd";> <taglib> <tag> <name>submit</name> <tagclass>com.RuntimeCollective.struts.tag.SubmitTag</tagclass> <bodycontent>empty</bodycontent> <info> Produces a submit button for which it is possible to define both the label and submit value seperately Attributes: property - [optional] Name of the property whose value will be submitted. [defaults to "action"] name - The name of the form bean that holds the above property. label - The label to write on the button. value - [optional] The value to set 'property' to [defaults to use the corresponding bean property value] htmlJSInput - [optional] You must set this to true if the form contains an 'htmlJSInput' tag </info> <attribute> <name>label</name> <required>true</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>name</name> <required>true</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>value</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>property</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>htmlJSInput</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> </tag> <attribute> <name>name</name> <required>true</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>value</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>property</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>htmlJSInput</name> <required>false</required> <rtexprvalue>true</rtexprvalue> </attribute> </tag> </taglib>package com.RuntimeCollective.struts.tag; import java.io.IOException; import java.io.PrintStream; import javax.servlet.jsp.JspWriter; import javax.servlet.jsp.PageContext; import javax.servlet.jsp.JspException; import javax.servlet.jsp.JspTagException; import javax.servlet.jsp.tagext.Tag; import javax.servlet.jsp.tagext.TagSupport; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.util.BeanUtils; import org.apache.struts.util.RequestUtils; import org.apache.struts.util.ResponseUtils; /** A custom JSP tag that produces a submit button whose label is different from the submitted value. This tag takes the following attributes: * <ul> * <li> <code> name </code> - The name of the current form. [Mandatory]. </li> * <li> <code> label </code> - The label of the submit button. [Mandatory]. </li> * <li> <code> value </code> - The value of property to submit. Defaults to property's current value. [Optional]. </li> * <li> <code> property </code> - The property to be set to value. Defaults to "formAction". [Optional]. </li> * <li> <code> htmlJSInput </code> - You must set this to true if the form contains an <code>htmlJSInput</code> tag [Optional]. </li> * </ul> * This allows you to either specify the value explicitly, or take it from a bean's property. * <p><strong>Note</strong> a javascript bug means that property must <strong>not</strong> be set to "submit" or "action". * <p><strong>Note</strong> this tag must be used inside a form. * <p><b>Examples:</b> * <blockquote><code><rs:submit name="lessonForm" label="Save changes to this lesson"/></code></blockquote> * The submitted form will contain a parameter "formAction" (the default) that has the existing value of <code>lessonForm</code>'s "formAction" property. * <p> * <blockquote><code><rs:submit name="lessonForm" label="Delete this lesson" value="delete"/></code></blockquote> * The submitted form will contain a parameter "formAction" (the default) that has the value "delete". * * @version $Id: SubmitTag.java,v 1.11 2001/10/30 17:48:45 joe Exp $ */ public class SubmitTag extends TagSupport { // == Properties =================================================== /** The label of the submit button. */ protected String label = ""; /** Get the label of the submit button. */ public String getLabel() { return this.label; } /** Set the label of the submit button. */ public void setLabel(String label) { this.label = label; } /** The value of property to submit. */ protected String value = ""; /** Get the value of property to submit. */ public String getValue() { return this.value; } /** Set the value of property to submit. */ public void setValue(String value) { this.value = value; } /** The property to be set to value. */ protected String property = "formAction"; /** Get the property to be set to value. */ public String getProperty() { return this.property; } /** Set the property to be set to value. */ public void setProperty(String property) { this.property = property; } /** The name of the form. */ protected String name = ""; /** Get the name of the form. */ public String getName() { return this.name; } /** Set the name of the form. */ public void setName(String name) { this.name = name; } /** Whether this form contains an htmlJSInput tag. */ protected String htmlJSInput = "false"; /** Get whether this form contains an htmlJSInput tag. */ public String getHtmlInput() { return this.htmlJSInput; } /** Set whether this form contains an htmlJSInput tag. */ public void setHtmlInput(String htmlJSInput) { this.htmlJSInput = htmlJSInput; } // == Tag methods ================================== public int doStartTag() throws JspException { // If the value is null, try and get it from // the named bean's property if ( value.equals("") ) { Object bean = pageContext.findAttribute(name); if (bean == null) throw new JspException ("Can't access bean! "+name); try { String beanValue = BeanUtils.getSimpleProperty(bean, property); System.out.println("From BeanUtils.getSimpleProperty, we get out: "+beanValue); if (beanValue == null) beanValue = ""; setValue(beanValue); } catch (Exception e) { throw new JspException ("Error in submit tag: "+e); } } //results.append(ResponseUtils.filter(value)); String html = ""; // first check whether this is the first submit button for this form property if ( pageContext.getAttribute("rs_submit_"+name+"_"+property)==null ) { // create the javascript for the submit function for this form. html = "<script language=javascript> function rs_submit_"+name+"_"+property+"(newValue) { \n" + "document."+name+"."+property+".value = newValue;\n"; // If this form contains an htmlJSInput tag, we also need to call its JavaScript method if (htmlJSInput.equals("true")) { html = html + "getHTMLEditorAppletValue()\n"; } html = html + "document."+name+".submit();\n" +" };\n" + "</script>\n"; // Add the attribute we're changing, with a dummy value html = html + "<input type=\"hidden\" name=\""+property+"\" value=\"x\">\n"; } // add the button code. html = html + "<input type=\"button\" value=\""+label+"\" onclick=\"rs_submit_"+name+"_"+property+"('"+value+"');\">"; // write the code. try { pageContext.getOut().println( html ); } catch (IOException e) { throw new JspTagException("I/O Exception " + e.getMessage() ); } // and add the page context flag indicating that the javascript for this property is available pageContext.setAttribute("rs_submit_"+name+"_"+property, "true"); return SKIP_BODY; } public void release() { super.release(); property = "formAction"; name = ""; label = ""; value = ""; } }-- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
