1: <?php
  2: /**
  3:  * LICENSE (BSD)
  4:  *
  5:  * Copyright (c) 2013, Gerd Christian Kunze
  6:  * All rights reserved.
  7:  *
  8:  * Redistribution and use in source and binary forms, with or without
  9:  * modification, are permitted provided that the following conditions are
 10:  * met:
 11:  *
 12:  *  * Redistributions of source code must retain the above copyright
 13:  *    notice, this list of conditions and the following disclaimer.
 14:  *
 15:  *  * Redistributions in binary form must reproduce the above copyright
 16:  *    notice, this list of conditions and the following disclaimer in the
 17:  *    documentation and/or other materials provided with the distribution.
 18:  *
 19:  *  * Neither the name of Gerd Christian Kunze nor the names of the
 20:  *    contributors may be used to endorse or promote products derived from
 21:  *    this software without specific prior written permission.
 22:  *
 23:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 24:  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 25:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 26:  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 27:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 28:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 29:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 30:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 31:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 32:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 33:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 34:  *
 35:  * Instance
 36:  * 13.03.2013 09:51
 37:  */
 38: namespace MOC\Extension\YUICompressor;
 39: use MOC\Api;
 40: use MOC\Generic\Device\Extension;
 41: 
 42: /**
 43:  *
 44:  */
 45: class Instance implements Extension {
 46: 
 47:     /** @var Instance $Singleton */
 48:     private static $Singleton = null;
 49: 
 50:     /**
 51:      * Get Singleton/Instance
 52:      *
 53:      * @static
 54:      * @return Instance
 55:      */
 56:     public static function InterfaceInstance() {
 57:         if( self::$Singleton === null ) {
 58:             self::$Singleton = new Instance();
 59:         } return self::$Singleton;
 60:     }
 61: 
 62:     /**
 63:      * Get Changelog
 64:      *
 65:      * @static
 66:      * @return \MOC\Core\Changelog
 67:      */
 68:     public static function InterfaceChangelog() {
 69:         return Api::Core()->Changelog()->Create( __CLASS__ );
 70:     }
 71: 
 72:     /**
 73:      * Get Dependencies
 74:      *
 75:      * @static
 76:      * @return \MOC\Core\Depending
 77:      */
 78:     public static function InterfaceDepending() {
 79:         return Api::Core()->Depending();
 80:     }
 81: 
 82:     /** @var \YUICompressor[] $Queue */
 83:     private $Queue = array();
 84:     /** @var \YUICompressor $Current */
 85:     private $Current = null;
 86: 
 87:     /**
 88:      * Create new Extension-Instance
 89:      *
 90:      * Contains:
 91:      * - Do 3rdParty Setup
 92:      * - Create new (internal) 3rdParty Instance
 93:      *
 94:      * @return Instance
 95:      */
 96:     public function Create() {
 97:         $JarPath = Api::Core()->Drive()->File()->Handle( __DIR__.'/3rdParty/yuicompressor/build/yuicompressor-2.4.8pre.jar' )->Location();
 98:         $CachePath = Api::Core()->Cache()->Group(__CLASS__)->Timeout( 60 )->Set('')->Path();
 99:         require_once( '3rdParty/yuicompressor.php' );
100:         $this->Define( new \YUICompressor( $JarPath, $CachePath ) );
101:         return $this;
102:     }
103: 
104:     /**
105:      * Set external Extension-Instance
106:      *
107:      * Contains:
108:      * - Set new (external created) 3rdParty Instance to Current
109:      *
110:      * @param $Instance
111:      *
112:      * @return Instance
113:      */
114:     public function Define( $Instance ) {
115:         if( null === $this->Current ) {
116:             $this->Current = $Instance;
117:         } else {
118:             array_push( $this->Queue, $this->Current );
119:             $this->Current = $Instance;
120:         }
121:         return $this;
122:     }
123: 
124:     /**
125:      * Select Index as active 3rdParty Instance
126:      *
127:      * @param int $Index
128:      *
129:      * @return Instance
130:      */
131:     public function Select( $Index ) {
132:         // TODO: Implement Select() method.
133:     }
134: 
135:     /**
136:      * Get Index for Select() from Current() 3rdParty Instance
137:      *
138:      * @return int
139:      */
140:     public function Index() {
141:         // TODO: Implement Index() method.
142:     }
143: 
144:     /**
145:      * @return \YUICompressor
146:      */
147:     public function Current() {
148:         return $this->Current;
149:     }
150: 
151:     /**
152:      * @return Instance
153:      */
154:     public function Destroy() {
155:         if( count( $this->Queue ) ) {
156:             $this->Current = array_pop( $this->Queue );
157:         } else {
158:             $this->Current = null;
159:         }
160:         return $this;
161:     }
162: }
163: