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Filename : images.php
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<?php
/**
 * Functions specific to featured images.
 *
 * @package GP Premium
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // No direct access, please.
}

/**
 * Collects all available image sizes which we use in the Customizer.
 *
 * @since 1.10.0
 *
 * @return array
 */
function generate_blog_get_image_sizes() {
	$sizes = get_intermediate_image_sizes();

	$new_sizes = array(
		'full' => 'full',
	);

	foreach ( $sizes as $key => $name ) {
		$new_sizes[ $name ] = $name;
	}

	return $new_sizes;
}

add_filter( 'generate_page_header_default_size', 'generate_blog_set_featured_image_size' );
/**
 * Set our featured image sizes.
 *
 * @since 1.10.0
 *
 * @param string $size The existing size.
 * @return string The new size.
 */
function generate_blog_set_featured_image_size( $size ) {
	$settings = wp_parse_args(
		get_option( 'generate_blog_settings', array() ),
		generate_blog_get_defaults()
	);

	if ( ! is_singular() ) {
		$size = $settings['post_image_size'];
	}

	if ( is_single() ) {
		$size = $settings['single_post_image_size'];
	}

	if ( is_page() ) {
		$size = $settings['page_post_image_size'];
	}

	$atts = generate_get_blog_image_attributes();

	if ( ! empty( $atts ) ) {
		$values = array(
			$atts['width'],
			$atts['height'],
			$atts['crop'],
		);

		$image_src = wp_get_attachment_image_src( get_post_thumbnail_id( get_the_ID(), 'full' ), $values );

		if ( $image_src && $image_src[3] && apply_filters( 'generate_use_featured_image_size_match', true ) ) {
			return $values;
		} else {
			return $size;
		}
	}

	return $size;
}

if ( ! function_exists( 'generate_get_blog_image_attributes' ) ) {
	/**
	 * Build our image attributes
	 *
	 * @since 0.1
	 */
	function generate_get_blog_image_attributes() {
		$settings = wp_parse_args(
			get_option( 'generate_blog_settings', array() ),
			generate_blog_get_defaults()
		);

		if ( is_singular() ) {
			if ( is_singular( 'page' ) ) {
				$single = 'page_';
			} else {
				$single = 'single_';
			}
		} else {
			$single = '';
		}

		$ignore_crop = array( '', '0', '9999' );

		$atts = array(
			'width' => ( in_array( $settings[ "{$single}post_image_width" ], $ignore_crop ) ) ? 9999 : absint( $settings[ "{$single}post_image_width" ] ),
			'height' => ( in_array( $settings[ "{$single}post_image_height" ], $ignore_crop ) ) ? 9999 : absint( $settings[ "{$single}post_image_height" ] ),
			'crop' => ( in_array( $settings[ "{$single}post_image_width" ], $ignore_crop ) || in_array( $settings[ "{$single}post_image_height" ], $ignore_crop ) ) ? false : true,
		);

		// If there's no height or width, empty the array.
		if ( 9999 == $atts['width'] && 9999 == $atts['height'] ) { // phpcs:ignore
			$atts = array();
		}

		return apply_filters( 'generate_blog_image_attributes', $atts );
	}
}

if ( ! function_exists( 'generate_blog_setup' ) ) {
	add_action( 'wp', 'generate_blog_setup', 50 );
	/**
	 * Setup our blog functions and actions
	 *
	 * @since 0.1
	 */
	function generate_blog_setup() {
		$settings = wp_parse_args(
			get_option( 'generate_blog_settings', array() ),
			generate_blog_get_defaults()
		);

		// Move our featured images to above the title.
		if ( 'post-image-above-header' === $settings['post_image_position'] ) {
			remove_action( 'generate_after_entry_header', 'generate_post_image' );
			add_action( 'generate_before_content', 'generate_post_image' );

			// If we're using the Page Header add-on, move those as well.
			if ( function_exists( 'generate_page_header_post_image' ) ) {
				remove_action( 'generate_after_entry_header', 'generate_page_header_post_image' );
				add_action( 'generate_before_content', 'generate_page_header_post_image' );
			}
		}

		$page_header_content = false;
		if ( function_exists( 'generate_page_header_get_options' ) ) {
			$options = generate_page_header_get_options();

			if ( $options && '' !== $options['content'] ) {
				$page_header_content = true;
			}

			// If our Page Header has no content, remove it.
			// This will allow the Blog add-on to add an image for us.
			if ( ! $page_header_content && is_singular() ) {
				remove_action( 'generate_before_content', 'generate_page_header' );
				remove_action( 'generate_after_entry_header', 'generate_page_header' );
				remove_action( 'generate_after_header', 'generate_page_header' );
			}
		}

		// Remove the core theme featured image.
		// I would like to filter instead one day.
		remove_action( 'generate_after_header', 'generate_featured_page_header' );
		remove_action( 'generate_before_content', 'generate_featured_page_header_inside_single' );

		$location = generate_blog_get_singular_template();

		if ( $settings[ $location . '_post_image' ] && is_singular() && ! $page_header_content ) {
			if ( 'below-title' === $settings[ $location . '_post_image_position' ] ) {
				add_action( 'generate_after_entry_header', 'generate_blog_single_featured_image' );
			}

			if ( 'inside-content' === $settings[ $location . '_post_image_position' ] ) {
				add_action( 'generate_before_content', 'generate_blog_single_featured_image' );
			}

			if ( 'above-content' === $settings[ $location . '_post_image_position' ] ) {
				add_action( 'generate_after_header', 'generate_blog_single_featured_image' );
			}
		}
	}
}

add_filter( 'generate_featured_image_output', 'generate_blog_featured_image' );
/**
 * Remove featured image if set or using WooCommerce.
 *
 * @since 1.5
 * @param string $output The existing output.
 * @return string The image HTML
 */
function generate_blog_featured_image( $output ) {
	$settings = wp_parse_args(
		get_option( 'generate_blog_settings', array() ),
		generate_blog_get_defaults()
	);

	if ( ( function_exists( 'is_woocommerce' ) && is_woocommerce() ) || ! $settings['post_image'] ) {
		return false;
	}

	return $output;
}

/**
 * Build our featured images for single posts and pages.
 *
 * This function is way more complicated than it could be so it can
 * ensure compatibility with the Page Header add-on.
 *
 * @since 1.5
 *
 * @return string The image HTML
 */
function generate_blog_single_featured_image() {
	$settings = wp_parse_args(
		get_option( 'generate_blog_settings', array() ),
		generate_blog_get_defaults()
	);

	$image_id = get_post_thumbnail_id( get_the_ID(), 'full' );

	if ( function_exists( 'generate_page_header_get_image' ) && generate_page_header_get_image( 'ID' ) ) {
		if ( intval( $image_id ) !== generate_page_header_get_image( 'ID' ) ) {
			$image_id = generate_page_header_get_image( 'ID' );
		}
	}

	$location = generate_blog_get_singular_template();

	if ( ( function_exists( 'is_woocommerce' ) && is_woocommerce() ) || ! $settings[ $location . '_post_image' ] || ! $image_id ) {
		return false;
	}

	$attrs = array(
		'itemprop' => 'image',
	);

	if ( function_exists( 'generate_get_schema_type' ) ) {
		if ( 'microdata' !== generate_get_schema_type() ) {
			$attrs = array();
		}
	}

	$attrs['loading'] = false;
	$attrs = apply_filters( 'generate_single_featured_image_attrs', $attrs );

	$image_html = apply_filters(
		'post_thumbnail_html', // phpcs:ignore -- Core filter.
		wp_get_attachment_image(
			$image_id,
			apply_filters( 'generate_page_header_default_size', 'full' ),
			'',
			$attrs
		),
		get_the_ID(),
		$image_id,
		apply_filters( 'generate_page_header_default_size', 'full' ),
		''
	);

	$location = generate_blog_get_singular_template();

	$classes = array(
		is_page() ? 'page-header-image' : null,
		is_singular() && ! is_page() ? 'page-header-image-single' : null,
		'above-content' === $settings[ $location . '_post_image_position' ] ? 'grid-container grid-parent' : null,
	);

	$image_html = apply_filters( 'generate_single_featured_image_html', $image_html );

	// phpcs:ignore -- No need to escape here.
	echo apply_filters(
		'generate_single_featured_image_output',
		sprintf(
			'<div class="featured-image %2$s">
				%1$s
			</div>',
			$image_html,
			implode( ' ', $classes )
		),
		$image_html
	);
}

add_filter( 'generate_blog_image_attributes', 'generate_blog_page_header_image_atts' );
/**
 * Filter our image attributes in case we're using differents atts in our Page Header
 *
 * @since 1.5
 *
 * @param array $atts Our existing image attributes.
 * @return array Image attributes
 */
function generate_blog_page_header_image_atts( $atts ) {
	if ( ! function_exists( 'generate_page_header_get_options' ) ) {
		return $atts;
	}

	if ( ! is_singular() ) {
		return $atts;
	}

	$options = generate_page_header_get_options();

	if ( $options && 'enable' === $options['image_resize'] ) {
		$ignore_crop = array( '', '0', '9999' );

		$atts = array(
			'width' => ( in_array( $options['image_width'], $ignore_crop ) ) ? 9999 : absint( $options['image_width'] ),
			'height' => ( in_array( $options['image_height'], $ignore_crop ) ) ? 9999 : absint( $options['image_height'] ),
			'crop' => ( in_array( $options['image_width'], $ignore_crop ) || in_array( $options['image_height'], $ignore_crop ) ) ? false : true,
		);
	}

	return $atts;
}

add_filter( 'generate_single_featured_image_html', 'generate_blog_page_header_link' );
/**
 * Add our Page Header link to our featured image if set.
 *
 * @since 1.5
 *
 * @param string $image_html Our existing image HTML.
 * @return string Our new image HTML.
 */
function generate_blog_page_header_link( $image_html ) {
	if ( ! function_exists( 'generate_page_header_get_options' ) ) {
		return $image_html;
	}

	$options = generate_page_header_get_options();

	if ( ! empty( $options['image_link'] ) ) {
		return '<a href="' . esc_url( $options['image_link'] ) . '"' . apply_filters( 'generate_page_header_link_target', '' ) . '>' . $image_html . '</a>';
	} else {
		return $image_html;
	}
}

add_filter( 'body_class', 'generate_blog_remove_featured_image_class', 20 );
/**
 * Remove the featured image classes if they're disabled.
 *
 * @since 2.1.0
 * @param array $classes The body classes.
 */
function generate_blog_remove_featured_image_class( $classes ) {
	if ( is_singular() ) {
		$settings = wp_parse_args(
			get_option( 'generate_blog_settings', array() ),
			generate_blog_get_defaults()
		);

		if ( is_single() ) {
			$disable_single_featured_image = ! $settings['single_post_image'];
			$classes = generate_premium_remove_featured_image_class( $classes, $disable_single_featured_image );
		}

		if ( is_page() && ! $settings['page_post_image'] ) {
			$disable_page_featured_image = ! $settings['page_post_image'];
			$classes = generate_premium_remove_featured_image_class( $classes, $disable_page_featured_image );
		}
	}

	return $classes;
}