[jira] Assigned: (BEEHIVE-771) Accessing netui tag properties in tag development

["Carlin Rogers (JIRA)" <de...@beehive.apache.org>]

     [ http://issues.apache.org/jira/browse/BEEHIVE-771?page=all ]

Carlin Rogers reassigned BEEHIVE-771:
-------------------------------------

    Assign To: Daryl Olander  (was: Carlin Rogers)

Assigning to Daryl as he is looking into BEEHIVE-532. 

Daryl - I think this one could be closed as a duplicate of BEEHIVE-532.

> Accessing netui tag properties in tag development
> -------------------------------------------------
>
>          Key: BEEHIVE-771
>          URL: http://issues.apache.org/jira/browse/BEEHIVE-771
>      Project: Beehive
>         Type: Improvement
>   Components: NetUI
>     Versions: V1Beta, v1m1, V1
>  Environment: WindowsXP SP2, tomcat 5.0.28, MySQL 4.1
>     Reporter: V.Gnanasegaran
>     Assignee: Daryl Olander
>      Fix For: TBD

>
> I am trying to develop a custom tag based on the netui textbox. The syntax of the tag definision is the same and the ony difference is the datasource. 
> <bjeff:textBoxi dataSource="container.item.modul.tips.field" style="width:410px;" maxlength="100"/>
> The purpose of the tag is to enable/dissable a info. button next to the text box.
> Her is my custom tag code
> public class TextBoxiTag extends TextBox {
>     private Field field;
>     /**
>      * @see org.apache.beehive.netui.tags.AbstractClassicTag#getTagName()
>      */
>     public String getTagName() {
>         return "TextBoxi";
>     }
>     /**
>      * @see javax.servlet.jsp.tagext.BodyTagSupport#doEndTag()
>      */
>     public int doEndTag() throws JspException {
>         // Finn referanse til actionForm
>         StringBuilderRenderAppender results = new StringBuilderRenderAppender(new StringBuilder());    	
> 		ExpressionEvaluator ee = ExpressionEvaluatorFactory.getInstance();
> 		ExpressionHandling eh = new ExpressionHandling(this); // param: INetuiTag
>         BaseForm formularet = (BaseForm) eh.evaluateExpression(
> 				"{actionForm}", "form", this.pageContext);
> 		String scriptId = null;
> 		// String dataSource = evaluateDataSource().toString();
> 		String dataSource = "{" + this._dataSource + "}";
>  
> 		if (ee.containsExpression(dataSource)) {
>             Object object = eh.evaluateExpression(
> 					dataSource, "element", this.pageContext);
>             if ((object == null) || (!(object instanceof Felt))) {
> 				Logger logger = Logger.getInstance(this.getClass());
>                 logger.warn(Bundle.getString("Tags_ContentExpressionNull", dataSource));
>                 return BodyTagSupport.SKIP_PAGE;
>             }
>             this.field= (Field) object;
>         } else {
>             return BodyTagSupport.SKIP_PAGE;
>         }
>         if(hasErrors()) {
>             reportErrors();
>             localRelease();
>             return EVAL_PAGE;
>         }
>         String textObject = felt.getFeltVerdi() == null? "" : felt.getFeltVerdi();
>         if(textObject == null)
>             textObject = "";
>         results.append("<input type=");
>         results.append("\"text\"");
>         /////////////////////////////////////////////////
>         
>         
>         Some code here
>         /////////////////////////////////////////////////
>         String regexp = felt.getFeltValideringsuttrykk();
>     	results.append(" onBlur=\"");
>     	results.append(this.getOnBlurJavascript());
>     	results.append("(this,'");    	
>         results.append(formularet.getFeilOverskrift());
>         results.append("<div>");
>         results.append(StrengUtil.fjernSuffix(felt.getElementTekst(), FeltUtil.OBLIGATORISK_SUFFIX));
>         results.append("</div>', '");
>         String feilmelding = felt.getElementFeilmeldingstekst();
>         if ((feilmelding == null) || (feilmelding.equalsIgnoreCase(BaseController.NULLTEKST))) {
>             feilmelding = "";
>         }
>         results.append(feilmelding);
>         results.append("', '");
>         results.append(this.getSisteParam());
>         results.append("');\"");
> 		
> 		results.append("/>");
>         if(scriptId != null)
>         	results.append(scriptId);
>         
>         write(results.toString());
> 		localRelease();
>         return EVAL_PAGE;
> }
>      In the region "Some code here" I would like to retrive those attributes "maxlength", "style" which I passed through in the jsp tag. I used this.getValue("maxlength") did NOT retrive the value of maxlength. Have you any suggession how I can retrieve those values and put it into the textbox tag attribute using this.setMaxlength() and so on.
> An other problem is binding the netui tag datasource variable properly. The value of the binded datasource in NOT updated with the new value. 

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