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<?php |
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namespace JeroenNoten\LaravelAdminLte\Menu; |
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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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* A map between menu item properties and their respective test methods. |
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* |
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* @var array |
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*/ |
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protected $tests; |
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/** |
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* Constructor. |
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*/ |
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public function __construct() |
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{ |
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// Fill the map with tests. These tests will check whether a menu item |
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// is active. Since the menu is traversed with a depth-first technique, |
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// for submenu elements with nested submenus, checking for the |
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// dynamically compiled 'active' property first will give us more |
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// performance. |
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$this->tests = [ |
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'active' => [$this, 'isExplicitActive'], |
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'submenu' => [$this, 'containsActive'], |
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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. An active item will be |
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* highlighted in the menu. |
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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. Otherwise, |
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// return false. |
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foreach ($this->tests as $prop => $testMethod) { |
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if (isset($item[$prop]) && $testMethod($item[$prop])) { |
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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 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 the 'active' |
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* property. |
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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 with 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, request()->path()); |
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} |
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// If pattern is not a regex, check if the requested url matches with |
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// the absolute path to the given pattern. When the pattern uses query |
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// parameters, compare with the full requested url. |
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$pattern = preg_replace('@^https?://@', '*', url($pattern)); |
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$request = isset(parse_url($pattern)['query']) |
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? request()->fullUrl() |
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: request()->url(); |
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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
