Hi,

Try to prefix the generated id from
context.getViewRoot().createUniqueId() with something else.

Mathias

> -----Original Message-----
> From: Mario Ivankovits [mailto:[EMAIL PROTECTED] 
> Sent: Thursday, July 07, 2005 9:35 AM
> To: MyFaces Development
> Subject: tree2 expand/collapse graphic and 
> HtmlRenderUtils.writeIdIfNecessary
> 
> 
> Hi!
> 
> I currently prepare a patch for the tree2 component to 
> correctly encode 
> the image path for the expand/collapse images.
> 
> It already works, but the tree2 element do not toggle the 
> image instead 
> I get a javascript error. The javascript cant find the image element.
> 
> The reason is in HtmlRenderUtils.writeIdIfNecessary:
> 
> In HtmlTreeRenderer a unique ID is generated with 
> "context.getViewRoot().createUniqueId()" for the image 
> components. These 
> IDs start with "_id".
> Now In HtmlImageRendererBase the id is only rendererd "if 
> necessary" and 
> HtmlRenderUtils.writeIdIfNecessary decide NOT to render the id due to 
> the fact it starts with "_id"
> 
> HtmlRenderUtils.writeIdIfNecessary:
> if(component.getId()!=null && 
> !component.getId().startsWith(UIViewRoot.UNIQUE_ID_PREFIX))
> 
> 
> Shouldnt a id ALWAYS render be rendered in 
> HtmlImageRendererBase instead 
> of using "HtmlRendererUtils.writeIdIfNecessary(writer, uiComponent, 
> facesContext);"?
> 
> ---
> Mario
> 
> 

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