/**
* Ensure that the ID attribute is rendered and registers the javascript code
* for initializing the active control.
*/
protected function addAttributesToRender($writer)
{
parent::addAttributesToRender($writer);
$writer->addAttribute('id', $this->getClientID());
$this->renderLinkButtonHref($writer);
$this->getActiveControl()->registerCallbackClientScript($this->getClientClassName(), $this->getPostBackOptions());
}
/**
* Instantiates the template.
* It creates a {@link TLinkButton}.
* @param TControl parent to hold the content within the template
*/
public function instantiateIn($parent)
{
$button = new TLinkButton();
$button->setID(TWizard::ID_SIDEBAR_BUTTON);
$parent->getControls()->add($button);
}
/**
* Ensures that the anchor is rendered correctly when its Enabled property
* changes in a callback
* @param bool enabled
*/
public function setEnabled($value)
{
parent::setEnabled($value);
if ($this->getActiveControl()->canUpdateClientSide()) {
if ($this->getEnabled(true)) {
$nop = "javascript:;//" . $this->getClientID();
$this->getPage()->getCallbackClient()->setAttribute($this, 'href', $nop);
$this->getActiveControl()->registerCallbackClientScript($this->getClientClassName(), $this->getPostBackOptions());
} else {
$this->getPage()->getCallbackClient()->setAttribute($this, 'href', false);
}
}
}
