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| 1 | <?php |
| 2 | |
| 3 | class MixinController { |
| 4 | /** @var array */ |
| 5 | private $mixins; |
| 6 | |
| 7 | /** @var array */ |
| 8 | private $magicWords = []; |
| 9 | /** @var IContextSource */ |
| 10 | private $uiContext; |
| 11 | |
| 12 | public function __construct( IContextSource $uiContext, $mixins ) { |
| 13 | $this->uiContext = $uiContext; |
| 14 | $this->mixins = $mixins; |
| 15 | |
| 16 | $this->loadPhp(); |
| 17 | } |
| 18 | |
| 19 | public function getContext() { |
| 20 | return $this->uiContext; |
| 21 | } |
| 22 | |
| 23 | public function getMagicWords() { |
| 24 | $words = array_keys( $this->magicWords ); |
| 25 | sort( $words ); |
| 26 | return $words; |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Initialize php modules. |
| 31 | */ |
| 32 | public function loadPhp() { |
| 33 | foreach ( $this->mixins as $name => $info ) { |
| 34 | if ( !empty( $info['php'] ) ) { |
| 35 | // The module must register itself with this controller. |
| 36 | $php_module_path = $info['localBasePath'] . DIRECTORY_SEPARATOR . $info['php']; |
| 37 | // Strip the file extension and assume the mixin class is eponymous. |
| 38 | // TODO: maybe they should be registered using hooks instead... |
| 39 | $php_module_name = preg_replace( "/[.].+$/", "", $info['php'] ); |
| 40 | require_once $php_module_path; |
| 41 | $mod = new $php_module_name(); |
| 42 | if ( !( $mod instanceof IBannerMixin ) ) { |
| 43 | throw new MixinNotFoundException( $name ); |
| 44 | } |
| 45 | $mod->register( $this ); |
| 46 | } |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | public function getPreloadJsSnippets() { |
| 51 | $snippets = []; |
| 52 | foreach ( $this->mixins as $name => $info ) { |
| 53 | if ( !empty( $info['preloadJs'] ) ) { |
| 54 | $filename = $info['localBasePath'] . DIRECTORY_SEPARATOR . $info['preloadJs']; |
| 55 | $snippet = file_get_contents( $filename ); |
| 56 | if ( !$snippet ) { |
| 57 | throw new MixinNotFoundException( $name ); |
| 58 | } |
| 59 | $snippets[$name] = $snippet; |
| 60 | } |
| 61 | } |
| 62 | return $snippets; |
| 63 | } |
| 64 | |
| 65 | public function getResourceLoaderModules() { |
| 66 | $modules = []; |
| 67 | foreach ( $this->mixins as $name => $info ) { |
| 68 | if ( !empty( $info['resourceLoader'] ) ) { |
| 69 | $modules[$name] = $info['resourceLoader']; |
| 70 | } |
| 71 | } |
| 72 | return $modules; |
| 73 | } |
| 74 | |
| 75 | public function registerMagicWord( $word, $callback ) { |
| 76 | $this->magicWords[$word] = $callback; |
| 77 | } |
| 78 | |
| 79 | public function renderMagicWord( $word, $params = [] ) { |
| 80 | if ( array_key_exists( $word, $this->magicWords ) ) { |
| 81 | $callback = $this->magicWords[$word]; |
| 82 | if ( is_callable( $callback ) ) { |
| 83 | return call_user_func_array( $callback, $params ); |
| 84 | } |
| 85 | } |
| 86 | } |
| 87 | } |