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<?php
/**
* @author : Jegtheme
*/
namespace JNews\Image;
/**
* Class JNews Image
*/
Class Image
{
/**
* @var Image
*/
private static $instance;
private $image_size = array();
private $prefix = "jnews-";
/**
* @return Image
*/
public static function getInstance()
{
if (null === static::$instance)
{
static::$instance = new static();
}
return static::$instance;
}
private function __construct()
{
$this->setup_image_size();
add_action( 'wp_loaded', array($this, 'image_hook'));
add_action('after_setup_theme', array($this, 'generate_image'), 99);
}
public function generate_image()
{
$generate_image = get_theme_mod('jnews_image_generator', 'normal');
if($generate_image === 'dynamic')
{
add_filter('image_downsize', array($this, 'image_down_size'), 99, 3);
} else {
add_action( 'init', array($this, 'add_image_size'));
}
}
public function image_hook()
{
$mechanism = get_theme_mod('jnews_image_load', 'lazyload');
if($mechanism === 'lazyload')
{
$image = ImageLazyLoad::getInstance();
} else if ($mechanism === 'background') {
$image = ImageBackgroundLoad::getInstance();
} else {
$image = ImageNormalLoad::getInstance();
}
add_filter( 'jnews_image_lazy_owl' , array($image, 'owl_lazy_image'), null, 2);
add_filter( 'jnews_single_image_lazy_owl' , array($image, 'owl_lazy_single_image'), null, 2);
add_filter( 'jnews_image_thumbnail' , array($image, 'image_thumbnail'), null, 2);
add_filter( 'jnews_image_thumbnail_unwrap' , array($image, 'image_thumbnail_unwrap'), null, 2);
add_filter( 'jnews_single_image_unwrap' , array($image, 'single_image_unwrap'), null, 2);
add_filter( 'jnews_single_image_owl' , array($image, 'owl_single_image'), null, 2);
add_filter( 'jnews_single_image', array($image, 'single_image'), null, 3 );
add_filter( 'image_size_names_choose', array($this, 'custom_size') );
}
public function custom_size($sizes)
{
$this->setup_image_size();
foreach($this->image_size as $key => $size) {
$sizes[$key] = esc_html__('Custom Size', 'jnews');
}
return $sizes;
}
public function get_image_size($size)
{
return $this->image_size[$size];
}
public function setup_image_size()
{
$this->image_size = array
(
// dimension : 0.5
$this->prefix . '360x180' => array('width' => 360, 'height' => 180, 'crop' => true , 'dimension' => 500),
$this->prefix . '750x375' => array('width' => 750, 'height' => 375, 'crop' => true , 'dimension' => 500),
$this->prefix . '1140x570' => array('width' => 1140, 'height' => 570, 'crop' => true , 'dimension' => 500),
// dimension : 0.715
$this->prefix . '120x86' => array('width' => 120, 'height' => 86, 'crop' => true , 'dimension' => 715),
$this->prefix . '350x250' => array('width' => 350, 'height' => 250, 'crop' => true , 'dimension' => 715),
$this->prefix . '750x536' => array('width' => 750, 'height' => 536, 'crop' => true , 'dimension' => 715),
$this->prefix . '1140x815' => array('width' => 1140, 'height' => 815, 'crop' => true , 'dimension' => 715),
// dimension
$this->prefix . '360x504' => array('width' => 360, 'height' => 504, 'crop' => true , 'dimension' => 1400),
// dimension 1
$this->prefix . '75x75' => array('width' => 75, 'height' => 75, 'crop' => true , 'dimension' => 1000),
$this->prefix . '350x350' => array('width' => 350, 'height' => 350, 'crop' => true , 'dimension' => 1000),
// featured post
$this->prefix . 'featured-750' => array('width' => 750, 'height' => 0, 'crop' => true , 'dimension' => 1000),
$this->prefix . 'featured-1140' => array('width' => 1140, 'height' => 0, 'crop' => true , 'dimension' => 1000),
);
}
public function add_image_size()
{
foreach($this->image_size as $id => $image)
{
add_image_size( $id, $image['width'], $image['height'], $image['crop'] );
}
}
public static function generate_image_retina($image, $imageretina, $alt, $echo, $image_dm, $imageretina_dm)
{
$srcset = '';
$src = "src=\"" . esc_url($image) . "\" ";
$datasrclight = "data-light-src=\"" . esc_url($image) . "\" ";
$datasrcsetlight = "data-light-srcset=\"" . esc_url($image) . " 1x, " . esc_url($imageretina) . " 2x\" ";
$datasrcdark = "data-dark-src=\"" . esc_url($image_dm) . "\" ";
$datasrcsetdark = "data-dark-srcset=\"" . esc_url($image_dm) . " 1x, " . esc_url($imageretina_dm) . " 2x\"";
$dm_options = get_theme_mod('jnews_dark_mode_options', 'jeg_toggle_dark');
if(!empty($imageretina))
{
$srcset = "srcset=\"" . esc_url($image) . " 1x, " . esc_url($imageretina) . " 2x\"";
}
if ( ( isset( $_COOKIE['darkmode'] ) && $_COOKIE['darkmode'] === 'true' && ($dm_options === 'jeg_toggle_dark' || $dm_options === 'jeg_timed_dark')) || ( $dm_options === 'jeg_full_dark'))
{
$src = "src=\"" . esc_url($image_dm) . "\" ";
$srcset = "srcset=\"" . esc_url($image_dm) . " 1x, " . esc_url($imageretina_dm) . " 2x\"";
}
$header_logo = "<img class='jeg_logo_img' " . $src . $srcset . " alt=\"" . esc_attr($alt) . "\"" . $datasrclight . $datasrcsetlight . $datasrcdark . $datasrcsetdark . ">";
if($echo) {
echo jnews_sanitize_output($header_logo);
} else {
return $header_logo;
}
}
/**
* The image downside filter
* @param boolean $ignore
* @param integer $id
* @param string $size
* @return mixed
*/
public function image_down_size($ignore = false, $id = null, $size = 'medium')
{
global $_wp_additional_image_sizes;
$image = wp_get_attachment_url($id);
$meta = wp_get_attachment_metadata($id);
$width = 0;
$height = 0;
$crop = false;
$dynamic = false;
// return immediately if the size is "thumbnail".
if ($size == 'thumbnail') {
return false;
}
// return immediately if intermediate image size found.
if (image_get_intermediate_size($id, $size) || is_array($size)) {
return false;
}
// check if the image size is defined by 'add_image_size()' but not created yet.
if (isset($_wp_additional_image_sizes[$size])) {
$width = $_wp_additional_image_sizes[$size]['width'];
$height = $_wp_additional_image_sizes[$size]['height'];
$crop = $_wp_additional_image_sizes[$size]['crop'];
}
// here we assume that the size is dynamic e.g. '200x200'.
elseif ($sizeArr = $this->parse_size($size)) {
$width = isset($sizeArr['width']) ? $sizeArr['width'] : 0;
$height = isset($sizeArr['height']) ? $sizeArr['height'] : 999999;
$crop = isset($sizeArr['height']) ? true : false;
$dynamic = true;
}
// let's continue if original image found, also if width & height are specified.
if ($image && $width && $height)
{
if (! $img = $this->make_image($id, $width, $height, $crop)) {
return false;
}
if ($dynamic) {
$img['jnews_dynamic_images'] = true;
}
unset($img['path']);
$meta['sizes'][$size] = $img;
// update attachment metadata.
wp_update_attachment_metadata($id, $meta);
// replace original image url with newly created one.
$image = str_replace(wp_basename($image), wp_basename($img['file']), $image);
// we might need to further constrain it if content_width is narrower
list($width, $height) = image_constrain_size_for_editor($width, $height, $size);
// finally return the result.
return array($image, $width, $height, false);
}
return false;
}
/**
* Parse image size.
* @param string $string
* @return array
*/
public function parse_size($string)
{
$size = array();
if(!is_array($string) && substr( $string, 0, strlen($this->prefix) ) === $this->prefix)
{
$string = substr( $string, strlen($this->prefix) );
$array = explode('x', $string);
foreach ($array as $key => $value) {
$value = absint(trim($value));
if (! $value) {
continue;
}
if ($key === 0) {
$size['width'] = $value;
}
if ($key === 1) {
$size['height'] = $value;
}
}
} else {
return $string;
}
return $size;
}
/**
* Create a new image by cropping the original image based on given size.
*
* @since 1.0.0
* @access public
* @param integer $id
* @param integer $width
* @param integer $height
* @param boolean $crop
* @return array
*/
public function make_image($id, $width, $height = 999999, $crop = false)
{
$image = get_attached_file($id);
$editor = wp_get_image_editor($image);
if (! is_wp_error($editor)) {
$editor->resize($width, $height, $crop);
$editor->set_quality(100);
$filename = $editor->generate_filename();
return $editor->save($filename);
}
}
}