Viewing file:  SlideshowPlugin.php (4.74 KB) -rw-rw-rw-
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<?php
/**
* Class SlideshowPlugin is called whenever a slideshow do_action tag is come across.
* Responsible for outputting the slideshow's HTML, CSS and Javascript.
*
* @since 1.0.0
* @author: Stefan Boonstra
*/
class SlideshowPlugin
{
/** int $sessionCounter */
private static $sessionCounter = 0;
/**
* Function deploy prints out the prepared html
*
* @since 1.2.0
* @param int $postId
*/
static function deploy($postId = null)
{
echo self::prepare($postId);
}
/**
* Function prepare returns the required html and enqueues
* the scripts and stylesheets necessary for displaying the slideshow
*
* Passing this function no parameter or passing it a negative one will
* result in a random pick of slideshow
*
* @since 2.1.0
* @param int $postId
* @return String $output
*/
static function prepare($postId = null)
{
$post = null;
// Get post by its ID, if the ID is not a negative value
if (is_numeric($postId) &&
$postId >= 0)
{
$post = get_post($postId);
}
// Get slideshow by slug when it's a non-empty string
if ($post === null &&
is_string($postId) &&
!is_numeric($postId) &&
!empty($postId))
{
$query = new WP_Query(array(
'post_type' => SlideshowPluginPostType::$postType,
'name' => $postId,
'orderby' => 'post_date',
'order' => 'DESC',
'suppress_filters' => true
));
if($query->have_posts())
{
$post = $query->next_post();
}
}
// When no slideshow is found, get one at random
if ($post === null)
{
$post = get_posts(array(
'numberposts' => 1,
'offset' => 0,
'orderby' => 'rand',
'post_type' => SlideshowPluginPostType::$postType,
'suppress_filters' => true
));
if(is_array($post))
{
$post = $post[0];
}
}
// Exit on error
if($post === null)
{
return '<!-- WordPress Slideshow - No slideshows available -->';
}
// Log slideshow's issues to be able to track them on the page.
$log = array();
// Get views
$views = SlideshowPluginSlideshowSettingsHandler::getViews($post->ID);
if (!is_array($views) ||
count($views) <= 0)
{
$log[] = 'No views were found';
}
// Get settings
$settings = SlideshowPluginSlideshowSettingsHandler::getSettings($post->ID);
$styleSettings = SlideshowPluginSlideshowSettingsHandler::getStyleSettings($post->ID);
// The slideshow's session ID, allows JavaScript and CSS to distinguish between multiple slideshows
$sessionID = self::$sessionCounter;
// Only enqueue the functional stylesheet when the 'allStylesheetsRegistered' flag is false
if (!SlideshowPluginSlideshowStylesheet::$allStylesheetsRegistered)
{
wp_enqueue_style(
'slideshow-jquery-image-gallery-stylesheet_functional',
SlideshowPluginMain::getPluginUrl() . '/style/' . __CLASS__ . '/functional.css',
array(),
SlideshowPluginMain::$version
);
}
// Check if requested style is available. If not, use the default
list($styleName, $styleVersion) = SlideshowPluginSlideshowStylesheet::enqueueStylesheet($styleSettings['style']);
// Include output file to store output in $output.
$output = '';
ob_start();
include(SlideshowPluginMain::getPluginPath() . '/views/' . __CLASS__ . '/slideshow.php');
$output .= ob_get_clean();
// Enqueue slideshow script
wp_enqueue_script(
'slideshow-jquery-image-gallery-script',
SlideshowPluginMain::getPluginUrl() . '/js/min/all.frontend.min.js',
array('jquery'),
SlideshowPluginMain::$version
);
// Set dimensionWidth and dimensionHeight if dimensions should be preserved
if (isset($settings['preserveSlideshowDimensions']) &&
$settings['preserveSlideshowDimensions'] == 'true')
{
$aspectRatio = explode(':', $settings['aspectRatio']);
// Width
if (isset($aspectRatio[0]) &&
is_numeric($aspectRatio[0]))
{
$settings['dimensionWidth'] = $aspectRatio[0];
}
else
{
$settings['dimensionWidth'] = 1;
}
// Height
if (isset($aspectRatio[1]) &&
is_numeric($aspectRatio[1]))
{
$settings['dimensionHeight'] = $aspectRatio[1];
}
else
{
$settings['dimensionHeight'] = 1;
}
}
// Include slideshow settings by localizing them
wp_localize_script(
'slideshow-jquery-image-gallery-script',
'SlideshowPluginSettings_' . $sessionID,
$settings
);
// Include the location of the admin-ajax.php file
wp_localize_script(
'slideshow-jquery-image-gallery-script',
'slideshow_jquery_image_gallery_script_adminURL',
admin_url()
);
self::$sessionCounter++;
// Return output
return $output;
}
}
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