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<?php |
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namespace JeroenNoten\LaravelAdminLte\Menu; |
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use Illuminate\Contracts\Routing\UrlGenerator; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Str; |
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class ActiveChecker |
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{ |
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/** |
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* The request instance. |
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* |
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* @var Request |
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*/ |
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private $request; |
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/** |
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* The url generator instance. |
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* |
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* @var UrlGenerator |
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*/ |
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private $url; |
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/** |
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* Map between menu item properties and their respective test method. |
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* |
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* @var array |
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*/ |
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private $tests; |
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/** |
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* Constructor. |
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* |
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* @param UrlGenerator $url |
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*/ |
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public function __construct(UrlGenerator $url) |
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{ |
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$this->request = $url->getRequest(); |
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$this->url = $url; |
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// Fill the map with tests. These tests will check if a menu item is |
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// active or not. |
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$this->tests = [ |
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'submenu' => [$this, 'containsActive'], |
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'active' => [$this, 'isExplicitActive'], |
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'href' => [$this, 'checkPattern'], |
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'url' => [$this, 'checkPattern'], |
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]; |
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} |
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/** |
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* Checks if a menu item is currently active. Active items will be |
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* highlighted. |
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* |
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* @param mixed $item The menu item to check |
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* @return bool |
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*/ |
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public function isActive($item) |
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{ |
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// Return true if any of the verification tests is met. |
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foreach ($this->tests as $prop => $testFunc) { |
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if (isset($item[$prop]) && $testFunc($item[$prop])) { |
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return true; |
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} |
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} |
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// Otherwise, returns false. |
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return false; |
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} |
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/** |
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* Checks if an array of items contains an active item. |
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* |
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* @param array $items The items to check |
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* @return bool |
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*/ |
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protected function containsActive($items) |
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{ |
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foreach ($items as $item) { |
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if ($this->isActive($item)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Checks if an item is active by explicit definition of 'active' state. |
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* |
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* @param bool|array $activeDef |
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* @return bool |
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*/ |
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protected function isExplicitActive($activeDef) |
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{ |
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// If the active definition is a bool, return it. |
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if (is_bool($activeDef)) { |
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return $activeDef; |
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} |
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// Otherwise, check if any of the url patterns that defines the active |
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// state matches the requested url. |
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foreach ($activeDef as $pattern) { |
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if ($this->checkPattern($pattern)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Checks if an url pattern matches the requested url. |
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* |
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* @param string $pattern |
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* @return bool |
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*/ |
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protected function checkPattern($pattern) |
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{ |
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// First, check if the pattern is a regular expression. |
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if (Str::startsWith($pattern, 'regex:')) { |
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$regex = Str::substr($pattern, 6); |
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return (bool) preg_match($regex, $this->request->path()); |
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} |
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// If pattern is not a regex, check if the requested url matches the |
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// absolute path to the given pattern. When the pattern uses query |
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// parameters, compare with the full url request. |
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$pattern = preg_replace('@^https?://@', '*', $this->url->to($pattern)); |
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$request = $this->request->url(); |
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if (isset(parse_url($pattern)['query'])) { |
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$request = $this->request->fullUrl(); |
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} |
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return Str::is(trim($pattern), trim($request)); |
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} |
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} |
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jeroennoten /
Laravel-AdminLTE
