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<?php |
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namespace WPEmerge\View; |
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use Closure; |
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use WPEmerge\Facades\ViewEngine; |
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use WPEmerge\Helpers\Handler; |
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use WPEmerge\Helpers\MixedType; |
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/** |
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* Provide general view-related functionality. |
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*/ |
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class ViewService { |
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/** |
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* Global variables. |
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* |
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* @var array |
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*/ |
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protected $globals = []; |
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/** |
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* View composers. |
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* |
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* @var array |
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*/ |
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protected $composers = []; |
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/** |
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* Get global variables. |
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* |
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* @return array |
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*/ |
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public function getGlobals() { |
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return $this->globals; |
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} |
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/** |
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* Set a global variable. |
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* |
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* @param string $key |
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* @param mixed $value |
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* |
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* @return void |
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*/ |
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public function addGlobal( $key, $value ) { |
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$this->globals[ $key ] = $value; |
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} |
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/** |
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* Set an array of global variables. |
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* |
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* @param array $globals |
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* @return void |
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*/ |
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public function addGlobals( $globals ) { |
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foreach ( $globals as $key => $value ) { |
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$this->addGlobal( $key, $value ); |
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} |
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} |
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/** |
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* Get view composer. |
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* |
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* @param string $view |
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* @return Handler[] |
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*/ |
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public function getComposersForView( $view ) { |
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$view = ViewEngine::canonical( $view ); |
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$composers = []; |
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foreach ( $this->composers as $composer ) { |
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if ( in_array( $view, $composer['views'] ) ) { |
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$composers[] = $composer['composer']; |
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} |
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} |
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return $composers; |
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} |
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/** |
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* Add view composer. |
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* |
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* @param string|string[] $views |
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* @param string|Closure $composer |
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* @return void |
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* @throws \Exception |
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*/ |
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public function addComposer( $views, $composer ) { |
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$views = array_map( function( $view ) { |
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return ViewEngine::canonical( $view ); |
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}, MixedType::toArray( $views ) ); |
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$handler = new Handler( $composer, 'compose' ); |
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$this->composers[] = [ |
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'views' => $views, |
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'composer' => $handler, |
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]; |
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} |
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/** |
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* Get the composed context for a view. |
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* Passes all arguments to the composer. |
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* |
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* @param ViewInterface $view |
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* @return void |
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*/ |
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public function compose( ViewInterface $view ) { |
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$composers = $this->getComposersForView( $view->getName() ); |
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foreach ( $composers as $composer ) { |
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$composer->execute( $view ); |
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} |
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} |
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/** |
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* Create a view instance. |
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* |
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* @param string|string[] $views |
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* @return ViewInterface |
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*/ |
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public function make( $views ) { |
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$views = MixedType::toArray( $views ); |
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return ViewEngine::make( $views ); |
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} |
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} |
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htmlburger /
wpemerge
