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<?php |
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namespace WPEmerge\View; |
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use View as ViewService; |
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/** |
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* Render view files with php |
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*/ |
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class Php implements EngineInterface { |
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/** |
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* {@inheritDoc} |
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*/ |
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public function exists( $view ) { |
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$file = $this->resolveFile( $view ); |
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return strlen( $file ) > 0; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function canonical( $view ) { |
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$file = $this->resolveFile( $view ); |
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return $file; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function render( $views, $context ) { |
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foreach ( $views as $view ) { |
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if ( $this->exists( $view ) ) { |
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$file = $this->resolveFile( $view ); |
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return $this->renderView( $view, $file, $context ); |
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} |
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} |
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return ''; |
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} |
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/** |
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* Render a single view to string |
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* |
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* @param string $view |
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* @param string $file |
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* @param array $context |
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* @return string |
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*/ |
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protected function renderView( $view, $file, $context ) { |
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$__file = $file; |
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$__context = array_merge( |
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['global' => ViewService::getGlobals()], |
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ViewService::compose( $view ), |
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$context |
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); |
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$renderer = function() use ( $__file, $__context ) { |
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ob_start(); |
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extract( $__context ); |
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include( $__file ); |
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return ob_get_clean(); |
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}; |
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return $renderer(); |
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} |
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/** |
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* Resolve a view or a view array to an absolute filepath |
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* |
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* @param string $view |
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* @return string |
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*/ |
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protected function resolveFile( $view ) { |
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$file = locate_template( $view, false ); |
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if ( ! $file ) { |
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// locate_template failed to find the view - try adding a .php extension |
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$file = locate_template( $view . '.php', false ); |
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} |
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if ( ! $file ) { |
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// locate_template failed to find the view - test if a valid absolute path was passed |
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$file = $this->resolveFileFromFilesystem( $view ); |
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} |
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if ( $file ) { |
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$file = realpath( $file ); |
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} |
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return $file; |
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} |
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/** |
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* Resolve the view if it exists on the filesystem |
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* |
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* @param string $view |
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* @return string |
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*/ |
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protected function resolveFileFromFilesystem( $view ) { |
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return file_exists( $view ) ? $view : ''; |
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} |
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} |
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htmlburger /
wpemerge
