[XXE] placeholder image

[Hussein Shafie]

Thomas Dumm wrote:
>  
> Me gain, but this time hopefully a short and easy question:

Not really, I'm affraid!



> When using java webstart to deploy the editor, how do I write a 
> #template for image insertion, with a dummy placeholder image (say 
> placeholder135mmx70mm.jpg? Problem: Where can I store the image and how 
> do I reference in the #template to the placeholder image? 

--> I've tested this:

   <elementTemplate name="placeholder">
     <img xmlns="" src="xxe-config:common/icons/placeholder.jpg"
          alt="placeholder" />
   </elementTemplate>

Where "xxe-config:" is specified as follows in XXE's main XML catalog.

<rewriteURI uriStartString="xxe-config:" rewritePrefix="." />

Unfortunately, this does *not* work because XML catalogs are not used to 
resolve the URLs which are the sources of images.

For such templates, you need to specify a ``really absolute'' URL. Example:

   <elementTemplate name="placeholder">
     <img xmlns="" src="http://www.compendio.ch/pub/img/placeholder.jpg";
          alt="placeholder" />
   </elementTemplate>



--> If the image you want to specify is just a placeholder, may be a 
solution is to properly style (using CSS) your image elements (and not 
to define elaborate element templates for your images).

Example:

   <elementTemplate name="img23">
     <img xmlns="" src="???" alt="???" class="img23" />
   </elementTemplate>

and:

img[class="img23"] {
     display: inline;
     content: image-viewport(attribute, src,
                            data-type, anyURI,
                            content-width, attr(width),
                             content-height, attr(height),
                             fallback-image, url(placeholder.jpg));
}

"placeholder.jpg" must be copied to the directory containing the CSS 
style sheet. This will work fine with Java Web Start.



> Is there a 
> variable of some sort to the local (client) XMLMind-Cache directory?
> 

No. Java Web Start indeed uses a cache but it's a private, opaque, one.