/**
* Retrieve data for a patter
*
* @param String $id The id of the pattern
* @param Boolean $resolveAlias Whether or not to resolve data from aliased patterns (e.g. button~outline -> button)
* @return ViewData The decoded JSON data
*/
public static function getDataForPattern($id, $resolveAlias = false)
{
$data = array();
$id = Primer::cleanId($id);
// Load the Patterns default data
$defaultData = @file_get_contents(Primer::$PATTERN_PATH . '/' . $id . '/data.json');
if ($defaultData) {
$json = json_decode($defaultData);
if ($json) {
// Merge in the data
$data += (array) $json;
}
}
if ($resolveAlias) {
// Parent data - e.g. elements/button is the parent of elements/button~primary
$parentData = array();
// Load parent data if this is inherit
if (preg_match('/(.*?)~.*?/', $id, $matches)) {
$parentData = FileSystem::getDataForPattern($matches[1]);
}
// Merge the parent and pattern data together, giving preference to the pattern data
$data = array_replace_recursive((array) $parentData, (array) $data);
}
// Create the data structure
$viewData = new ViewData($data);
// Give the system a chance to mutate the data
ViewData::fire($id, $viewData);
// Return the data structure
return $viewData;
}
/**
* @dataProvider loadingDataProvider
*/
public function testLoadingData($id, $resolveAlias, $expected)
{
$viewData = FileSystem::getDataForPattern($id, $resolveAlias);
$this->assertEquals($expected, $viewData->toArray());
}
/**
* Load the data for this pattern
*/
protected function loadData()
{
$this->data = FileSystem::getDataForPattern($this->id, true);
}
public function testLoadingDataShouldTriggerEventsForParentPaths()
{
$testData = new \stdClass();
$testData->count = 0;
$event1 = ViewData::composer('components/events/*', function ($data) use($testData) {
// Is the data the right type?
$this->assertEquals(ViewData::class, get_class($data));
// Increment the count
$testData->count++;
});
$event2 = ViewData::composer('components/*', function ($data) use($testData) {
// Is the data the right type?
$this->assertEquals(ViewData::class, get_class($data));
// Increment the count
$testData->count++;
});
$viewData = FileSystem::getDataForPattern('components/events/loading-data');
$this->assertEquals(2, $testData->count);
// Unbind event so it can't mess with other tests
$event1->stop();
$event2->stop();
}