8398c9048d
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
398 lines
13 KiB
PHP
398 lines
13 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Pdf
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* @subpackage Actions
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Action.php 17182 2009-07-27 13:54:11Z alexander $
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*/
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/** Zend_Pdf_ElementFactory */
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require_once 'Zend/Pdf/ElementFactory.php';
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/** Zend_Pdf_Target */
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require_once 'Zend/Pdf/Target.php';
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/**
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* Abstract PDF action representation class
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*
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* @package Zend_Pdf
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* @subpackage Actions
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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abstract class Zend_Pdf_Action extends Zend_Pdf_Target implements RecursiveIterator, Countable
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{
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/**
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* Action dictionary
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*
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* @var Zend_Pdf_Element_Dictionary|Zend_Pdf_Element_Object|Zend_Pdf_Element_Reference
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*/
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protected $_actionDictionary;
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/**
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* An original list of chained actions
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*
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* @var array Array of Zend_Pdf_Action objects
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*/
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protected $_originalNextList;
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/**
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* A list of next actions in actions tree (used for actions chaining)
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*
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* @var array Array of Zend_Pdf_Action objects
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*/
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public $next = array();
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/**
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* Object constructor
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*
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* @param Zend_Pdf_Element_Dictionary $dictionary
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* @param SplObjectStorage $processedActions list of already processed action dictionaries, used to avoid cyclic references
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* @throws Zend_Pdf_Exception
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*/
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public function __construct(Zend_Pdf_Element $dictionary, SplObjectStorage $processedActions)
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{
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if ($dictionary->getType() != Zend_Pdf_Element::TYPE_DICTIONARY) {
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require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('$dictionary mast be a direct or an indirect dictionary object.');
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}
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$this->_actionDictionary = $dictionary;
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if ($dictionary->Next !== null) {
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if ($dictionary->Next instanceof Zend_Pdf_Element_Dictionary) {
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// Check if dictionary object is not already processed
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if (!$processedActions->contains($dictionary->Next)) {
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$processedActions->attach($dictionary->Next);
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$this->next[] = Zend_Pdf_Action::load($dictionary->Next, $processedActions);
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}
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} else if ($dictionary->Next instanceof Zend_Pdf_Element_Array) {
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foreach ($dictionary->Next->items as $chainedActionDictionary) {
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// Check if dictionary object is not already processed
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if (!$processedActions->contains($chainedActionDictionary)) {
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$processedActions->attach($chainedActionDictionary);
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$this->next[] = Zend_Pdf_Action::load($chainedActionDictionary, $processedActions);
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}
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}
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} else {
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require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('PDF Action dictionary Next entry must be a dictionary or an array.');
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}
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}
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$this->_originalNextList = $this->next;
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}
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/**
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* Load PDF action object using specified dictionary
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*
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* @internal
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* @param Zend_Pdf_Element $dictionary (It's actually Dictionary or Dictionary Object or Reference to a Dictionary Object)
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* @param SplObjectStorage $processedActions list of already processed action dictionaries, used to avoid cyclic references
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* @return Zend_Pdf_Action
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* @throws Zend_Pdf_Exception
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*/
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public static function load(Zend_Pdf_Element $dictionary, SplObjectStorage $processedActions = null)
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{
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if ($processedActions === null) {
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$processedActions = new SplObjectStorage();
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}
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if ($dictionary->getType() != Zend_Pdf_Element::TYPE_DICTIONARY) {
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require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('$dictionary mast be a direct or an indirect dictionary object.');
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}
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if (isset($dictionary->Type) && $dictionary->Type->value != 'Action') {
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require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('Action dictionary Type entry must be set to \'Action\'.');
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}
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if ($dictionary->S === null) {
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require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('Action dictionary must contain S entry');
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}
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switch ($dictionary->S->value) {
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case 'GoTo':
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require_once 'Zend/Pdf/Action/GoTo.php';
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return new Zend_Pdf_Action_GoTo($dictionary, $processedActions);
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brake;
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case 'GoToR':
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require_once 'Zend/Pdf/Action/GoToR.php';
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return new Zend_Pdf_Action_GoToR($dictionary, $processedActions);
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brake;
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case 'GoToE':
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require_once 'Zend/Pdf/Action/GoToE.php';
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return new Zend_Pdf_Action_GoToE($dictionary, $processedActions);
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brake;
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case 'Launch':
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require_once 'Zend/Pdf/Action/Launch.php';
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return new Zend_Pdf_Action_Launch($dictionary, $processedActions);
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brake;
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case 'Thread':
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require_once 'Zend/Pdf/Action/Thread.php';
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return new Zend_Pdf_Action_Thread($dictionary, $processedActions);
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brake;
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case 'URI':
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require_once 'Zend/Pdf/Action/URI.php';
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return new Zend_Pdf_Action_URI($dictionary, $processedActions);
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brake;
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case 'Sound':
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require_once 'Zend/Pdf/Action/Sound.php';
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return new Zend_Pdf_Action_Sound($dictionary, $processedActions);
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brake;
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case 'Movie':
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require_once 'Zend/Pdf/Action/Movie.php';
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return new Zend_Pdf_Action_Movie($dictionary, $processedActions);
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brake;
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case 'Hide':
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require_once 'Zend/Pdf/Action/Hide.php';
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return new Zend_Pdf_Action_Hide($dictionary, $processedActions);
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brake;
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case 'Named':
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require_once 'Zend/Pdf/Action/Named.php';
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return new Zend_Pdf_Action_Named($dictionary, $processedActions);
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brake;
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case 'SubmitForm':
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require_once 'Zend/Pdf/Action/SubmitForm.php';
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return new Zend_Pdf_Action_SubmitForm($dictionary, $processedActions);
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brake;
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case 'ResetForm':
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require_once 'Zend/Pdf/Action/ResetForm.php';
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return new Zend_Pdf_Action_ResetForm($dictionary, $processedActions);
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brake;
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case 'ImportData':
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require_once 'Zend/Pdf/Action/ImportData.php';
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return new Zend_Pdf_Action_ImportData($dictionary, $processedActions);
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brake;
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case 'JavaScript':
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require_once 'Zend/Pdf/Action/JavaScript.php';
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return new Zend_Pdf_Action_JavaScript($dictionary, $processedActions);
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brake;
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case 'SetOCGState':
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require_once 'Zend/Pdf/Action/SetOCGState.php';
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return new Zend_Pdf_Action_SetOCGState($dictionary, $processedActions);
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brake;
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case 'Rendition':
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require_once 'Zend/Pdf/Action/Rendition.php';
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return new Zend_Pdf_Action_Rendition($dictionary, $processedActions);
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brake;
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case 'Trans':
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require_once 'Zend/Pdf/Action/Trans.php';
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return new Zend_Pdf_Action_Trans($dictionary, $processedActions);
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brake;
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case 'GoTo3DView':
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require_once 'Zend/Pdf/Action/GoTo3DView.php';
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return new Zend_Pdf_Action_GoTo3DView($dictionary, $processedActions);
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brake;
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default:
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require_once 'Zend/Pdf/Action/Unknown.php';
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return new Zend_Pdf_Action_Unknown($dictionary, $processedActions);
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brake;
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}
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}
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/**
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* Get resource
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*
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* @internal
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* @return Zend_Pdf_Element
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*/
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public function getResource()
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{
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return $this->_actionDictionary;
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}
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/**
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* Dump Action and its child actions into PDF structures
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*
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* Returns dictionary indirect object or reference
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*
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* @internal
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* @param Zend_Pdf_ElementFactory $factory Object factory for newly created indirect objects
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* @param SplObjectStorage $processedActions list of already processed actions (used to prevent infinity loop caused by cyclic references)
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* @return Zend_Pdf_Element_Object|Zend_Pdf_Element_Reference Dictionary indirect object
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*/
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public function dumpAction(Zend_Pdf_ElementFactory_Interface $factory, SplObjectStorage $processedActions = null)
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{
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if ($processedActions === null) {
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$processedActions = new SplObjectStorage();
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}
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if ($processedActions->contains($this)) {
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require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('Action chain cyclyc reference is detected.');
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}
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$processedActions->attach($this);
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$childListUpdated = false;
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if (count($this->_originalNextList) != count($this->next)) {
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// If original and current children arrays have different size then children list was updated
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$childListUpdated = true;
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} else if ( !(array_keys($this->_originalNextList) === array_keys($this->next)) ) {
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// If original and current children arrays have different keys (with a glance to an order) then children list was updated
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$childListUpdated = true;
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} else {
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foreach ($this->next as $key => $childAction) {
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if ($this->_originalNextList[$key] !== $childAction) {
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$childListUpdated = true;
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break;
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}
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}
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}
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if ($childListUpdated) {
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$this->_actionDictionary->touch();
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switch (count($this->next)) {
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case 0:
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$this->_actionDictionary->Next = null;
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break;
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case 1:
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$child = reset($this->next);
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$this->_actionDictionary->Next = $child->dumpAction($factory, $processedActions);
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break;
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default:
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$pdfChildArray = new Zend_Pdf_Element_Array();
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foreach ($this->next as $child) {
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$pdfChildArray->items[] = $child->dumpAction($factory, $processedActions);
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}
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$this->_actionDictionary->Next = $pdfChildArray;
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break;
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}
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} else {
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foreach ($this->next as $child) {
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$child->dumpAction($factory, $processedActions);
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}
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}
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if ($this->_actionDictionary instanceof Zend_Pdf_Element_Dictionary) {
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// It's a newly created action. Register it within object factory and return indirect object
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return $factory->newObject($this->_actionDictionary);
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} else {
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// It's a loaded object
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return $this->_actionDictionary;
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}
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}
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////////////////////////////////////////////////////////////////////////
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// RecursiveIterator interface methods
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//////////////
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/**
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* Returns current child action.
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*
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* @return Zend_Pdf_Action
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*/
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public function current()
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{
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return current($this->next);
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}
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/**
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* Returns current iterator key
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*
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* @return integer
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*/
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public function key()
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{
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return key($this->next);
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}
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/**
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* Go to next child
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*/
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public function next()
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{
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return next($this->next);
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}
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/**
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* Rewind children
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*/
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public function rewind()
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{
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return reset($this->next);
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}
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/**
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* Check if current position is valid
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*
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* @return boolean
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*/
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public function valid()
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{
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return current($this->next) !== false;
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}
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/**
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* Returns the child action.
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*
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* @return Zend_Pdf_Outline|null
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*/
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public function getChildren()
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{
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return current($this->next);
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}
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/**
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* Implements RecursiveIterator interface.
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*
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* @return bool whether container has any pages
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*/
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public function hasChildren()
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{
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return count($this->next) > 0;
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}
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////////////////////////////////////////////////////////////////////////
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// Countable interface methods
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//////////////
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/**
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* count()
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*
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* @return int
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*/
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public function count()
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{
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return count($this->childOutlines);
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}
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}
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