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<?php |
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namespace Zewa; |
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use Zewa\Interfaces\ContainerInterface; |
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/** |
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* View management |
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* |
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* @author Zechariah Walden<zech @ zewadesign.com> |
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*/ |
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class View |
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{ |
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/** |
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* Active layout for view |
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* |
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* @var string|bool |
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*/ |
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protected $layout; |
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/** |
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* Active module for view |
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* |
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* @var string|bool |
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*/ |
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protected $module = false; |
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/** |
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* Rendered view content |
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* |
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* @var string |
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*/ |
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protected $view = false; |
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/** |
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* Data object for view |
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* |
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* @var object |
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*/ |
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protected $properties; |
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/** |
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* \Zewa\Config reference |
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* |
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* @var Config |
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*/ |
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protected $configuration; |
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/** |
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* \Zewa\Router reference |
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* |
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* @var Router |
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*/ |
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protected $router; |
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/** |
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* \Zewa\Router reference |
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* |
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* @var Router |
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*/ |
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protected $request; |
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/** |
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* @var array |
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*/ |
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private $queuedJS = []; |
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/** |
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* @var array |
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*/ |
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private $queuedCSS = []; |
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/** |
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* Load up some basic configuration settings. |
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*/ |
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public function __construct(Config $config, Router $router, Request $request) |
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{ |
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$this->configuration = $config; |
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$this->router = $router; |
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$this->request = $request; |
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} |
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/** |
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* Returns base URL for app |
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* @return string |
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*/ |
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private function baseURL($path = '') |
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{ |
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return $this->router->baseURL($path); |
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} |
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/** |
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* Returns the current request URL |
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* @return string |
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*/ |
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private function currentURL($params = false) |
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{ |
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return $this->router->currentURL($params); |
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} |
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/** |
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* Returns uri string |
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* @return string |
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*/ |
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private function currentURI() |
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{ |
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return $this->router->uri; |
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} |
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/* |
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* @todo create method for returning |
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* a valid json string with header.. |
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* view shouldn't set header logic, |
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* and the framework doesn't care what returns the string |
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* ..but view should handle the json_encode... |
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* seems overkill to call header() with returning a $view->json; |
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* thoughts?*/ |
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/** |
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* Loads a view |
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* |
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* @access public |
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* @param string|bool $view view to load |
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* @param string|bool $layout |
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* @return string |
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*/ |
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public function render($view = false, $layout = false) |
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{ |
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if ($layout !== false) { |
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$this->setLayout($layout); |
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} |
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if ($view !== false) { |
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$view = $this->prepareView($view); |
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$this->view = $return = $this->process($view); |
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if (! is_null($this->layout)) { |
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$return = $this->process($this->layout); |
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} |
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return $return; |
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} else { |
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if ($this->view !== false) { |
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$this->view = $this->process($this->view); |
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} |
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if (! is_null($this->layout)) { |
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return $this->process($this->layout); |
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} else { |
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return $this->view; |
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} |
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} |
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} |
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/** |
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* formats and prepares view for inclusion |
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* @param $viewName |
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* @return string |
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* @throws Exception\LookupException |
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*/ |
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private function prepareView($viewName) |
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{ |
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if ($this->module === false) { |
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$this->setModule(); |
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} |
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$view = APP_PATH |
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. DIRECTORY_SEPARATOR |
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. 'Modules' |
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. DIRECTORY_SEPARATOR |
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. $this->module |
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. DIRECTORY_SEPARATOR |
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. 'Views' |
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. DIRECTORY_SEPARATOR |
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. strtolower($viewName) |
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. '.php'; |
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if (!file_exists($view)) { |
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throw new Exception\LookupException('View: "' . $view . '" could not be found.'); |
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} |
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return $view; |
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} |
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public function setView($viewName, $layout = false) |
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{ |
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if ($layout !== false) { |
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$this->setLayout($layout); |
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} |
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$this->view = $this->prepareView($viewName); |
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} |
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public function setProperty($property, $value = false) |
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{ |
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if ($value !== false) { |
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$this->properties[$property] = $value; |
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} elseif (!empty($property)) { |
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$this->properties = $property; |
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} |
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return false; |
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} |
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public function setLayout($layout) |
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{ |
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if ($layout === false) { |
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$this->layout = null; |
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} else { |
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$layout = APP_PATH . DIRECTORY_SEPARATOR . 'Layouts' . DIRECTORY_SEPARATOR . strtolower($layout) . '.php'; |
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if (!file_exists($layout)) { |
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throw new Exception\LookupException('Layout: "' . $layout . '" could not be found.'); |
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} |
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$this->layout = $layout; |
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return true; |
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} |
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} |
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/** |
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* Set the module for view look |
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* |
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* @access public |
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* @param string|bool $module module to override |
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*/ |
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public function setModule($module = false) |
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{ |
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if ($module === false) { |
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$routerConfig = $this->router->getConfig()->get('Routing'); |
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$this->module = $routerConfig->module; |
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} else { |
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$this->module = ucfirst($module); |
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} |
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} |
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/** |
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* Processes view/layouts and exposes variables to the view/layout |
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* |
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* @access private |
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* @param string $file file being rendered |
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* @return string processed content |
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*/ |
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//@TODO: come back and clean up this and the way the view receives stuff |
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private function process($file) |
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{ |
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ob_start(); |
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if (is_array($this->properties)) { |
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extract($this->properties); // yuck. could produce undeclared errors. hmm.. |
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} |
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//should i set $this->data in abstract controller, and provide all access vars ? seems bad practice.. |
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include $file; |
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$return = ob_get_contents(); |
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ob_end_clean(); |
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return $return; |
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} |
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/** |
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* Helper method for grabbing aggregated css files |
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* |
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* @access protected |
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* @return string css includes |
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*/ |
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protected function fetchCSS() |
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{ |
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$string = ""; |
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if (empty($this->queuedCSS)) { |
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return $string; |
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} |
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foreach ($this->queuedCSS as $sheet) { |
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$string .= '<link rel="stylesheet" href="' . $sheet .'">' . "\r\n"; |
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} |
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return $string; |
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} |
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/** |
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* Helper method for grabbing aggregated JS files |
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* |
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* @access protected |
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* @return string JS includes |
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*/ |
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protected function fetchJS() |
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{ |
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$string = "<script>baseURL = '" . $this->baseURL() . "/'</script>\r\n"; |
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if (empty($this->queuedJS)) { |
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return $string; |
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} |
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foreach ($this->queuedJS as $script) { |
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$string .= '<script src="' . $script . '"></script>' . "\r\n"; |
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} |
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return $string; |
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} |
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/** |
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* Helper method for adding css files for aggregation/render |
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* |
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* @access public |
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* @param $files array |
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* @param $place string |
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* @return string css includes |
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* @throws Exception\LookupException |
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*/ |
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View Code Duplication |
public function addCSS($files = [], $place = 'append') |
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{ |
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if ($place === 'append') { |
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$this->queuedCSS = array_merge($files, $this->queuedCSS); |
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} else { |
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$this->queuedCSS = array_merge($this->queuedCSS, $files); |
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} |
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} |
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View Code Duplication |
public function addJS($files = [], $place = 'append') |
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{ |
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if ($place === 'append') { |
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$this->queuedJS = array_merge($files, $this->queuedJS); |
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} else { |
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$this->queuedJS = array_merge($this->queuedJS, $files); |
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} |
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} |
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/** |
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* Set 404 header, and return 404 view contents |
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* |
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* @access public |
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* @param $data array |
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* @return string |
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*/ |
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public function render404($data = []) |
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{ |
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header('HTTP/1.1 404 Not Found'); |
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$this->setProperty($data); |
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$this->setLayout('404'); |
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return $this->render(); |
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} |
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} |
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Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..