/**
* generates the library string (core:caja:etc.js) including a checksum of all the
* javascript content (?v=<md5 of js>) for cache busting
*
* @param array $features
* @return string the list of libraries in core:caja:etc.js?v=checksum> format
*/
protected function getJsUrl($features)
{
if (!is_array($features) || !count($features)) {
return 'null';
}
$registry = $this->context->getRegistry();
// Given the JsServlet automatically expends the js library, we just need
// to include the "leaf" nodes of the features.
$ret = $features;
foreach ($features as $feature) {
$depFeatures = $registry->features[$feature]['deps'];
$ret = array_diff($ret, $depFeatures);
}
$ret = implode(':', $ret);
$cache = Cache::createCache(Config::get('feature_cache'), 'FeatureCache');
if (($md5 = $cache->get(md5('getJsUrlMD5'))) === false) {
$features = $registry->features;
// Build a version string from the md5() checksum of all included javascript
// to ensure the client always has the right version
$inlineJs = '';
foreach ($features as $feature => $content) {
$inlineJs .= $registry->getFeatureContent($feature, $this->context, true);
}
$md5 = md5($inlineJs);
$cache->set(md5('getJsUrlMD5'), $md5);
}
$ret .= ".js?v=" . $md5;
return $ret;
}
/**
* Resolves the Required and Optional features and their dependencies into a real feature list using
* the GadgetFeatureRegistry, which can be used to construct the javascript for the gadget
*
* @param Gadget $gadget
*/
protected function parseFeatures(Gadget &$gadget)
{
$found = $missing = array();
if (!$this->context->getRegistry()->resolveFeatures($this->getNeededFeaturesForView($gadget), $found, $missing)) {
$requiredMissing = false;
foreach ($missing as $featureName) {
if (isset($gadget->gadgetSpec->requiredFeatures[$featureName])) {
$requiredMissing = true;
break;
}
}
if ($requiredMissing) {
throw new GadgetException("Unknown features: " . implode(',', $missing));
}
}
$gadget->features = $found;
}
/**
* Resolves the Required and Optional features and their dependencies into a real feature list using
* the GadgetFeatureRegistry, which can be used to construct the javascript for the gadget
*
* @param Gadget $gadget
*/
protected function parseFeatures(Gadget &$gadget)
{
$found = $missing = array();
if (!$this->context->getRegistry()->resolveFeatures(array_merge($gadget->gadgetSpec->requiredFeatures, $gadget->gadgetSpec->optionalFeatures), $found, $missing)) {
$requiredMissing = false;
foreach ($missing as $featureName) {
if (in_array($featureName, $gadget->gadgetSpec->requiredFeatures)) {
$requiredMissing = true;
break;
}
}
if ($requiredMissing) {
throw new GadgetException("Unknown features: " . implode(',', $missing));
}
}
unset($gadget->gadgetSpec->optionalFeatures);
unset($gadget->gadgetSpec->requiredFeatures);
$gadget->features = $found;
}
/**
* Tests GadgetHtmlRenderer->addHeadTags()
*/
public function testAddHeadTags()
{
ob_start();
$this->GadgetHtmlRenderer->renderGadget($this->gadget, $this->view);
ob_end_clean();
$this->GadgetHtmlRenderer->addHeadTags($this->domElement, $this->domDocument);
$tmpNodeList = $this->domElement->getElementsByTagName("style");
$tmpNodeList = $this->domElement->getElementsByTagName("script");
$script = '';
foreach ($this->GadgetHtmlRenderer->gadget->features as $feature) {
$script .= $this->gadgetContext->getRegistry()->getFeatureContent($feature, $this->gadgetContext, true);
}
foreach ($tmpNodeList as $tmpNode) {
$this->assertEquals('text/javascript', $tmpNode->getAttribute('type'));
$nodeValue = substr($tmpNode->nodeValue, 0, strpos($tmpNode->nodeValue, 'gadgets.config.init('));
$this->assertEquals(trim($script), trim($nodeValue));
}
}
/**
* Tests GadgetContext->getRegistry()
*/
public function testGetRegistry()
{
$this->assertNotNull($this->GadgetContext->getRegistry());
}
