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Cleaning up the output with HTMLTidy
18 September 2009 at 9:14pm
I'd like to clean the output of my templates using HTMLTidy.
I tried several approaches but I just can't get it right. With the help of this recipe: http://doc.silverstripe.org/doku.php?id=recipes:syntax-highlighting I managed to clean single pieces of the output, but not the whole document.My idea would be to take the output from SSViewer::process(), run it through tidy->parseString and return it.
I think I need to overwrite the call for ViewableData::renderWith() (not overwrite the function itself) with my own and insert my extension class to SSViewer there.Roughly like this:
class SSViewerTidy extends SSViewer {
public function process($item) {
$tidy = new tidy;
$tidy->parseString(parent::process($item));
return tidy_get_output($tidy);
}
}somewhere else:
renderWith(new SSViewerTidy($template))
But I can't find where renderWith() is called when a request is made.
Where is my "somewhere else"?Any help would be appreciated.
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Re: Cleaning up the output with HTMLTidy
22 September 2009 at 4:39am
Sooo.. I got it to work. It's not pretty, but maybe it will help others.
Created a class SSViewerTidy:
class SSViewerTidy extends SSViewer {
public function process($item) {
//return(parent::process($item));
$config = array (
'indent-spaces' => 2,
'wrap' => 160
);
$tidy = new tidy;
$tidy->parseString(parent::process($item), $config, 'UTF8');
return tidy_get_output($tidy);
}
}And added this to my Page_Controller class:
function getViewer($action) {
// Hard-coded templates
if($this->templates[$action]) {
$templates = $this->templates[$action];
} else if($this->templates['index']) {
$templates = $this->templates['index'];
} else if($this->template) {
$templates = $this->template;
} else {
// Add action-specific templates for inheritance chain
$parentClass = $this->class;
if($action && $action != 'index') {
$parentClass = $this->class;
while($parentClass != "Controller") {
$templates[] = strtok($parentClass,'_') . '_' . $action;
$parentClass = get_parent_class($parentClass);
}
}
// Add controller templates for inheritance chain
$parentClass = $this->class;
while($parentClass != "Controller") {
$templates[] = strtok($parentClass,'_');
$parentClass = get_parent_class($parentClass);
}// remove duplicates
$templates = array_unique($templates);
}
return new SSViewerTidy($templates);
}The content is completely copied from Cotroller.php (which is extended by Page_controller) - only the last line is altered to use the new SSViewer.
Yeah...ugly. I know.
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