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<?php

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namespace Nextend\SmartSlider3\SliderManager;

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use Exception;

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use Nextend\Framework\Asset\AssetManager;

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use Nextend\Framework\Pattern\MVCHelperTrait;

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use Nextend\Framework\Translation\Translation;

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use Nextend\SmartSlider3\Application\Model\ModelSliders;

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use Nextend\SmartSlider3\Application\Model\ModelSlidersXRef;

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use Nextend\SmartSlider3\Slider\Cache\CacheSlider;

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use Nextend\SmartSlider3\Slider\Slider;

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class SliderManager {

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use MVCHelperTrait;

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protected $isAdmin;

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protected $hasError = false;

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protected $displayWhenEmpty = false;

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protected $usage = 'Unknown';

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/**

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* @var Slider

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public $slider;

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public $nextCacheRefresh;

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/**

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* @var ModelSlidersXRef

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private $xref;

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/**

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* @param MVCHelperTrait $MVCHelper

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* @param $sliderIDorAlias

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* @param $isAdmin

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* @param array $parameters

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public function __construct($MVCHelper, $sliderIDorAlias, $isAdmin = false, $parameters = array()) {

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$this->setMVCHelper($MVCHelper);

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$this->isAdmin = $isAdmin;

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$sliderID = false;

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$model = new ModelSliders($this);

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if (!is_numeric($sliderIDorAlias)) {

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$slider = $model->getByAlias($sliderIDorAlias);

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if ($slider) {

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$sliderID = intval($slider['id']);

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}

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} else {

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$sliderID = intval($sliderIDorAlias);

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}

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if ($sliderID) {

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$this->init($sliderID, $parameters);

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$this->xref = new ModelSlidersXRef($model);

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AssetManager::addCachedGroup($this->slider->cacheId);

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} else {

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$this->hasError = true;

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}

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}

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protected function init($sliderID, $parameters) {

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$this->slider = new Slider($this->MVCHelper, $sliderID, $parameters, $this->isAdmin);

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}

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public function setUsage($usage) {

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$this->usage = $usage;

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if ($usage === 'iframe') {

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$this->slider->isFrame = true;

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}

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}

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/**

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* @return Slider

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public function getSlider() {

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return $this->slider;

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}

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/**

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* @param $cache

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* @return string contains already escaped data

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public function render($cache = false) {

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if ($this->hasError) {

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return '';

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}

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try {

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if (!$cache) {

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$this->slider->initAll();

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if (($this->xref->isSliderAvailableInAnyGroups($this->slider->sliderId) || $this->isAdmin) && ($this->slider->hasSlides() || $this->displayWhenEmpty)) {

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return $this->slider->render();

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}

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return '';

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}

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return $this->slider->addCMSFunctions($this->cacheSlider());

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} catch (Exception $e) {

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return '';

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}

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}

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private function cacheSlider() {

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$cache = new CacheSlider($this->slider->cacheId, array(

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'slider' => $this->slider

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));

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$key = 'slider' . Translation::getCurrentLocale();

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if ($this->slider->isFrame) {

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$key .= 'iframe';

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}

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$cachedSlider = $cache->makeCache($key, '', array(

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$this,

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'renderCachedSlider'

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));

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$this->nextCacheRefresh = $cache->getData('nextCacheRefresh', false);

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if ($cachedSlider === false) {

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return '';

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}

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AssetManager::loadFromArray($cachedSlider['assets']);

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return $cachedSlider['html'];

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}

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/**

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* @return array|bool

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* @throws Exception

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public function renderCachedSlider() {

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AssetManager::createStack();

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$content = array();

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try {

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$this->slider->initAll();

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if (($this->xref->isSliderAvailableInAnyGroups($this->slider->sliderId) || $this->isAdmin) && $this->slider->hasSlides()) {

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$content['html'] = $this->slider->render();

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} else {

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$content['html'] = '';

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}

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} catch (Exception $exception) {

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$content['html'] = false;

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}

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$assets = AssetManager::removeStack();

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if ($content['html'] === false) {

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return false;

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}

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$content['assets'] = $assets;

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return $content;

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}

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public function allowDisplayWhenEmpty() {

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$this->displayWhenEmpty = true;

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}

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}

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