/**
* Collect all libraries.
*
* @param EncodeValueEvent $event The subscribed event.
*
* @return void
*/
public function collect(EncodeValueEvent $event)
{
$value = $event->getValue();
if ($value instanceof Definition) {
foreach ($value->getRequiredLibraries() as $library) {
if (isset($this->libraries[$library])) {
continue;
}
if (isset($this->stylesheets[$library])) {
foreach ($this->stylesheets[$library] as $asset) {
$this->assets->addStylesheet($asset[0], $asset[1]);
}
}
if (isset($this->javascripts[$library])) {
foreach ($this->javascripts[$library] as $asset) {
$this->assets->addJavascript($asset[0], $asset[1]);
}
}
$this->libraries[$library] = true;
}
}
}
/**
* Build map as a javascript resource.
*
* It always return the generated map no matter if an assets object is given or not. If you want to get the
* combined generated assets, just use $assets->getHtml().
*
* @param Map $map The map being created.
* @param Assets $assets Optional pass an assets instance which collects all required assets.
*
* @return string
*/
public function build(Map $map, Assets $assets = null)
{
$prefix = 'var map, layers = {}, controls = {}, icons = {};' . "\n";
if (!$assets) {
return $prefix . $this->javascriptBuilder->encode($map, $this->jsonEncodeFlags);
}
$collector = new Collector($assets, $this->javascripts, $this->stylesheets);
$this->eventDispatcher->addSubscriber($collector);
$assets->setMap($prefix . $this->javascriptBuilder->encode($map, $this->jsonEncodeFlags));
$this->eventDispatcher->removeSubscriber($collector);
return $assets->getMap();
}
