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/**
* Carousel renders a carousel bootstrap javascript component.
*
* For example:
*
* ```php
* echo Carousel::widget([
* 'items' => [
* // the item contains only the image
* '<img src="http://twitter.github.io/bootstrap/assets/img/bootstrap-mdo-sfmoma-01.jpg"/>',
* // equivalent to the above
* ['content' => '<img src="http://twitter.github.io/bootstrap/assets/img/bootstrap-mdo-sfmoma-02.jpg"/>'],
* // the item contains both the image and the caption
* [
* 'content' => '<img src="http://twitter.github.io/bootstrap/assets/img/bootstrap-mdo-sfmoma-03.jpg"/>',
* 'caption' => '<h4>This is title</h4><p>This is the caption text</p>',
* 'options' => [...],
* ],
* ]
* ]);
* ```
*
* @see http://getbootstrap.com/javascript/#carousel
* @author Antonio Ramirez <amigo.cobos@gmail.com>
* @since 2.0
*/
class Carousel extends Widget
{
/**
* @var array|boolean the labels for the previous and the next control buttons.
* If false, it means the previous and the next control buttons should not be displayed.
*/
public $controls = ['‹', '›'];
/**
* @var boolean
* If false carousel indicators (<ol> tag with anchors to items) should not be displayed.
*/
public $showIndicators = true;
/**
* @var array list of slides in the carousel. Each array element represents a single
* slide with the following structure:
*
* ```php
* [
* // required, slide content (HTML), such as an image tag
* 'content' => '<img src="http://twitter.github.io/bootstrap/assets/img/bootstrap-mdo-sfmoma-01.jpg"/>',
* // optional, the caption (HTML) of the slide
* 'caption' => '<h4>This is title</h4><p>This is the caption text</p>',
* // optional the HTML attributes of the slide container
* 'options' => [],
* ]
* ```
*/
public $items = [];
/**
* Initializes the widget.
*/
public function init()
{
parent::init();
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70f4f18b
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}
/**
* Renders the widget.
*/
public function run()
{
$this->registerPlugin('carousel');
return implode("\n", [
Html::beginTag('div', $this->options),
$this->renderIndicators(),
$this->renderItems(),
$this->renderControls(),
Html::endTag('div')
]) . "\n";
}
/**
* Renders carousel indicators.
* @return string the rendering result
*/
public function renderIndicators()
{
if ($this->showIndicators === false) {
return '';
}
$indicators = [];
for ($i = 0, $count = count($this->items); $i < $count; $i++) {
$options = ['data-target' => '#' . $this->options['id'], 'data-slide-to' => $i];
if ($i === 0) {
Html::addCssClass($options, 'active');
}
$indicators[] = Html::tag('li', '', $options);
}
return Html::tag('ol', implode("\n", $indicators), ['class' => 'carousel-indicators']);
}
/**
* Renders carousel items as specified on [[items]].
* @return string the rendering result
*/
public function renderItems()
{
$items = [];
for ($i = 0, $count = count($this->items); $i < $count; $i++) {
$items[] = $this->renderItem($this->items[$i], $i);
}
return Html::tag('div', implode("\n", $items), ['class' => 'carousel-inner']);
}
/**
* Renders a single carousel item
* @param string|array $item a single item from [[items]]
* @param integer $index the item index as the first item should be set to `active`
* @return string the rendering result
* @throws InvalidConfigException if the item is invalid
*/
public function renderItem($item, $index)
{
if (is_string($item)) {
$content = $item;
$caption = null;
$options = [];
} elseif (isset($item['content'])) {
$content = $item['content'];
$caption = ArrayHelper::getValue($item, 'caption');
if ($caption !== null) {
$caption = Html::tag('div', $caption, ['class' => 'carousel-caption']);
}
$options = ArrayHelper::getValue($item, 'options', []);
} else {
throw new InvalidConfigException('The "content" option is required.');
}
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if ($index === 0) {
Html::addCssClass($options, 'active');
}
return Html::tag('div', $content . "\n" . $caption, $options);
}
/**
* Renders previous and next control buttons.
* @throws InvalidConfigException if [[controls]] is invalid.
*/
public function renderControls()
{
if (isset($this->controls[0], $this->controls[1])) {
return Html::a($this->controls[0], '#' . $this->options['id'], [
'class' => 'left carousel-control',
'data-slide' => 'prev',
]) . "\n"
. Html::a($this->controls[1], '#' . $this->options['id'], [
'class' => 'right carousel-control',
'data-slide' => 'next',
]);
} elseif ($this->controls === false) {
return '';
} else {
throw new InvalidConfigException('The "controls" property must be either false or an array of two elements.');
}
}
}
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fixed Image class