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:  * 13.02.2013 21:21
 37:  */
 38: namespace MOC\Extension\Word;
 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 \PHPWord[] $Queue */
 83:     private $Queue = array();
 84:     /** @var \PHPWord $Current */
 85:     private $Current = null;
 86: 
 87:     /**
 88:      * Create new Extension-Instance
 89:      *
 90:      * Contains:
 91:      * - Do 3rdParty Setup
 92:      * - Create new (intern) 3rdParty Instance
 93:      *
 94:      * @return Instance
 95:      */
 96:     public function Create() {
 97:         require_once( '3rdParty/PHPWord.php' );
 98:         $this->Define( new \PHPWord() );
 99:         return $this;
100:     }
101: 
102:     /**
103:      * Set external Extension-Instance
104:      *
105:      * Contains:
106:      * - Set new (external created) 3rdParty Instance to Current
107:      *
108:      * @param $Instance
109:      *
110:      * @return Instance
111:      */
112:     public function Define( $Instance ) {
113:         if( null === $this->Current ) {
114:             $this->Current = $Instance;
115:         } else {
116:             array_push( $this->Queue, $this->Current );
117:             $this->Current = $Instance;
118:         }
119:         return $this;
120:     }
121: 
122:     /**
123:      * Select Index as active 3rdParty Instance
124:      *
125:      * @param int $Index
126:      *
127:      * @return Instance
128:      */
129:     public function Select( $Index ) {
130:         // TODO: Implement Select() method.
131:     }
132: 
133:     /**
134:      * Get Index for Select() from Current() 3rdParty Instance
135:      *
136:      * @return int
137:      */
138:     public function Index() {
139:         // TODO: Implement Index() method.
140:     }
141: 
142:     /**
143:      * @return \PHPWord
144:      */
145:     public function Current() {
146:         return $this->Current;
147:     }
148: 
149:     /**
150:      * @return Instance
151:      */
152:     public function Destroy() {
153:         if( count( $this->Queue ) ) {
154:             $this->Current = array_pop( $this->Queue );
155:         } else {
156:             $this->Current = null;
157:         }
158:         return $this;
159:     }
160: }
161: