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<?php

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namespace Nextend\SmartSlider3\Widget;

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use Nextend\Framework\View\Html;

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class WidgetPlacementSimple extends WidgetPlacement {

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public function add($renderCallback, $stack, $offset = 0) {

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$this->items[] = array(

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'stack' => $stack,

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'renderCallback' => $renderCallback,

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'offset' => $offset

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);

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}

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public function render() {

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usort($this->items, function ($a, $b) {

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if ($a['stack'] == $b['stack']) {

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return 0;

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}

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return ($a['stack'] < $b['stack']) ? -1 : 1;

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});

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$out = '';

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foreach ($this->items as $item) {

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$attributes = array();

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if ($item['offset'] != 0) {

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$attributes['style'] = '--widget-offset:' . $item['offset'] . 'px;';

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}

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$out .= call_user_func($item['renderCallback'], $attributes);

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}

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if (!empty($out)) {

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return Html::tag('div', array(

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'class' => 'n2-ss-slider-controls n2-ss-slider-controls-' . $this->name

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), $out);

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}

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return '';

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}

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}

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