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<?php |
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/** |
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* @link https://github.com/2amigos/yii2-gallery-widget |
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* @copyright Copyright (c) 2013-2016 2amigOS! Consulting Group LLC |
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* @license http://opensource.org/licenses/BSD-3-Clause |
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*/ |
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namespace dosamigos\gallery; |
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use yii\helpers\Html; |
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use yii\helpers\Json; |
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/** |
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* Carousel BlueImp Gallery Widget |
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* |
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* @author Alexander Kochetov <[email protected]> |
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*/ |
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class Carousel extends Gallery |
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{ |
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/** |
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* @var bool whether to json encode items or not. If using Json to encode items, we will be able to render |
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* different |
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*/ |
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public $json = false; |
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/** |
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* @inheritdoc |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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Html::addCssClass($this->templateOptions, 'blueimp-gallery-carousel'); |
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$this->clientOptions['carousel'] = true; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function renderItems() |
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{ |
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if ($this->json) { |
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return null; |
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} |
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return parent::renderItems(); |
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} |
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/** |
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* @return string the carousel template |
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*/ |
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public function renderTemplate() |
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{ |
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$template[] = '<div class="slides"></div>'; |
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$template[] = '<h3 class="title"></h3>'; |
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$template[] = '<a class="prev">‹</a>'; |
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$template[] = '<a class="next">›</a>'; |
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$template[] = '<a class="play-pause"></a>'; |
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$template[] = '<ol class="indicator"></ol>'; |
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return Html::tag('div', implode("\n", $template), $this->templateOptions); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function registerClientScript() |
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{ |
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$view = $this->getView(); |
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GalleryAsset::register($view); |
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DosamigosAsset::register($view); |
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$id = $this->options['id']; |
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$options = Json::encode($this->clientOptions); |
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$items = $this->json ? Json::encode($this->items) : "$('#$id').find('a.gallery-item').hide()"; |
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$js = "blueimp_galleries = ( typeof blueimp_galleries != 'undefined' && blueimp_galleries instanceof Array ) ? blueimp_galleries : [];"; |
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$js .= "blueimp_galleries['$id']=blueimp.Gallery($items, $options);"; |
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$view->registerJs($js); |
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} |
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} |
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2amigos /
yii2-gallery-widget
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.