1: <?php
  2: 
  3: class RESTian_Base {
  4: 
  5:   /**
  6:    * Adds a filter hook for an object
  7:    *
  8:    *    $this->add_filter( 'filter_result' );
  9:    *    $this->add_filter( 'filter_result', 11 );
 10:    *    $this->add_filter( 'filter_result', 'special_func' );
 11:    *    $this->add_filter( 'filter_result', 'special_func', 11 );
 12:    *    $this->add_filter( 'filter_result', array( __CLASS__, 'class_func' ) );
 13:    *    $this->add_filter( 'filter_result', array( __CLASS__, 'class_func' ), 11 );
 14:    *    $this->add_filter( 'filter_result', new SpecialClass() );
 15:    *    $this->add_filter( 'filter_result', new SpecialClass(), 11 );
 16:    *
 17:    * @param string $filter_name
 18:    * @param string|array|object|int $callable_object_or_priority Array Callable, String Callable, Class w/Named Filter or Priority
 19:    * @param int|null $priority
 20:    *
 21:    * @return mixed
 22:    */
 23:   function add_filter( $filter_name, $callable_object_or_priority = null, $priority = null ) {
 24:     list( $callable, $priority ) = $this->_parse_callable_args( $filter_name, $callable_object_or_priority, $priority );
 25:     if ( defined( 'WP_CONTENT_DIR') ) {
 26:       $filter_name = spl_object_hash( $this ) . "->{$filter_name}()";
 27:       add_filter( $filter_name, $callable, $priority, 99 );
 28:     } else {
 29:       RESTian::add_filter( $filter_name, $callable, $priority );
 30:     }
 31:     return true;
 32:   }
 33:   /**
 34:    * Adds a filter hook for an object
 35:    *
 36:    *    $this->add_action( 'process_action' );
 37:    *    $this->add_action( 'process_action', 11 );
 38:    *    $this->add_action( 'process_action', 'special_func' );
 39:    *    $this->add_action( 'process_action', 'special_func', 11 );
 40:    *    $this->add_action( 'process_action', array( __CLASS__, 'class_func' ) );
 41:    *    $this->add_action( 'process_action', array( __CLASS__, 'class_func' ), 11 );
 42:    *    $this->add_action( 'process_action', new SpecialClass() );
 43:    *    $this->add_action( 'process_action', new SpecialClass(), 11 );
 44:    *
 45:    * @param string $action_name
 46:    * @param string|array|object|int $callable_object_or_priority Array Callable, String Callable, Class w/Named Action or Priority
 47:    * @param int|null $priority
 48:    *
 49:    * @return mixed
 50:    */
 51:   function add_action( $action_name, $callable_object_or_priority = null, $priority = null ) {
 52:     list( $callable, $priority ) = $this->_parse_callable_args( $action_name, $callable_object_or_priority, $priority );
 53:     if ( defined( 'WP_CONTENT_DIR') ) {
 54:       add_action( $this->_hash_hook_name( $action_name ), $callable, $priority, 99 );
 55:     } else {
 56:       RESTian::add_action( $action_name, $callable, $priority );
 57:     }
 58:   }
 59: 
 60:   /**
 61:    * @param string $filter_name
 62:    * @param mixed $value
 63:    *
 64:    * @return mixed
 65:    */
 66:   function apply_filters( $filter_name, $value ) {
 67:     if ( defined( 'WP_CONTENT_DIR') ) {
 68:       $args = func_get_args();
 69:       $args[0] = $this->_hash_hook_name( $filter_name );
 70:       $value = call_user_func_array( 'apply_filters', $args );
 71:     } else {
 72:       $filters = RESTian::get_filters( $filter_name );
 73:       if ( count( $filters ) ) {
 74:         $args = func_get_args();
 75:         array_shift( $args );
 76:         foreach( $filters as $function ) {
 77:           /**
 78:            * Sort by priorty
 79:            */
 80:           ksort( $function );
 81:           foreach( $function as $priority ) {
 82:             foreach( $priority as $callable ) {
 83:               $value = call_user_func_array( $callable, $args );
 84:             }
 85:           }
 86:         }
 87:       }
 88:     }
 89:     return $value;
 90:   }
 91: 
 92:   /**
 93:    * @param string $action_name
 94:    *
 95:    * @return mixed
 96:    */
 97:   function do_action( $action_name ) {
 98:     if ( defined( 'WP_CONTENT_DIR') ) {
 99:       $args = func_get_args();
100:       $args[0] = $this->_hash_hook_name( $action_name );
101:       call_user_func_array( 'do_action', $args );
102:     } else {
103:       call_user_func_array( array( $this, 'apply_filters' ), func_get_args() );
104:     }
105:   }
106: 
107:   /**
108:    * Parse args for $this->add_action() and $this->add_filter().
109:    *
110:    * @param string $filter_name
111:    * @param string|array|object|int $callable_object_or_priority Array Callable, String Callable, Class w/Named Action or Priority
112:    * @param int|null $priority
113:    *
114:    * @return array
115:    */
116:   private function _parse_callable_args( $filter_name, $callable_object_or_priority = null, $priority = null ) {
117:     if ( ! $callable_object_or_priority ) {
118:       $callable = array( $this, "_{$filter_name}" );
119:     } else if ( is_numeric( $callable_object_or_priority ) ) {
120:       $priority = $callable_object_or_priority;
121:     } else if ( is_string( $callable_object_or_priority ) ) {
122:       $callable = array( $this, $callable_object_or_priority );
123:     } else if ( is_array( $callable_object_or_priority ) ) {
124:       $callable = $callable_object_or_priority;
125:     } else if ( is_object( $callable_object_or_priority ) ) {
126:       $callable = array( $callable_object_or_priority, "_{$filter_name}" );
127:     }
128:     if ( is_null( $priority ) ) {
129:        $priority = 10;
130:     }
131:     return array( $callable, $priority );
132:   }
133: 
134:   private function _hash_hook_name( $hook_name ) {
135:     return spl_object_hash( $this ) . "->{$hook_name}()";
136:   }
137: 
138: }
139: