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<?php
/**
* Storefront functions.
*
* @package storefront
*/
if ( ! function_exists( 'storefront_is_woocommerce_activated' ) ) {
/**
* Query WooCommerce activation
*/
function storefront_is_woocommerce_activated() {
return class_exists( 'WooCommerce' ) ? true : false;
}
}
/**
* Checks if the current page is a product archive
* @return boolean
*/
function storefront_is_product_archive() {
if ( storefront_is_woocommerce_activated() ) {
if ( is_shop() || is_product_taxonomy() || is_product_category() || is_product_tag() ) {
return true;
} else {
return false;
}
} else {
return false;
}
}
/**
* Call a shortcode function by tag name.
*
* @since 1.4.6
*
* @param string $tag The shortcode whose function to call.
* @param array $atts The attributes to pass to the shortcode function. Optional.
* @param array $content The shortcode's content. Default is null (none).
*
* @return string|bool False on failure, the result of the shortcode on success.
*/
function storefront_do_shortcode( $tag, array $atts = array(), $content = null ) {
global $shortcode_tags;
if ( ! isset( $shortcode_tags[ $tag ] ) ) {
return false;
}
return call_user_func( $shortcode_tags[ $tag ], $atts, $content, $tag );
}
/**
* Get the content background color
* Accounts for the Storefront Designer and Storefront Powerpack content background option.
*
* @since 1.6.0
* @return string the background color
*/
function storefront_get_content_background_color() {
if ( class_exists( 'Storefront_Designer' ) ) {
$content_bg_color = get_theme_mod( 'sd_content_background_color' );
$content_frame = get_theme_mod( 'sd_fixed_width' );
}
if ( class_exists( 'Storefront_Powerpack' ) ) {
$content_bg_color = get_theme_mod( 'sp_content_frame_background' );
$content_frame = get_theme_mod( 'sp_content_frame' );
}
$bg_color = str_replace( '#', '', get_theme_mod( 'background_color' ) );
if ( class_exists( 'Storefront_Powerpack' ) || class_exists( 'Storefront_Designer' ) ) {
if ( $content_bg_color && ( 'true' == $content_frame || 'frame' == $content_frame ) ) {
$bg_color = str_replace( '#', '', $content_bg_color );
}
}
return '#' . $bg_color;
}
/**
* Apply inline style to the Storefront header.
*
* @uses get_header_image()
* @since 2.0.0
*/
function storefront_header_styles() {
$is_header_image = get_header_image();
$header_bg_image = '';
if ( $is_header_image ) {
$header_bg_image = 'url(' . esc_url( $is_header_image ) . ')';
}
$styles = array();
if ( '' !== $header_bg_image ) {
$styles['background-image'] = $header_bg_image;
}
$styles = apply_filters( 'storefront_header_styles', $styles );
foreach ( $styles as $style => $value ) {
echo esc_attr( $style . ': ' . $value . '; ' );
}
}
/**
* Apply inline style to the Storefront homepage content.
*
* @uses get_the_post_thumbnail_url()
* @since 2.2.0
*/
function storefront_homepage_content_styles() {
$featured_image = get_the_post_thumbnail_url( get_the_ID() );
$background_image = '';
if ( $featured_image ) {
$background_image = 'url(' . esc_url( $featured_image ) . ')';
}
$styles = array();
if ( '' !== $background_image ) {
$styles['background-image'] = $background_image;
}
$styles = apply_filters( 'storefront_homepage_content_styles', $styles );
foreach ( $styles as $style => $value ) {
echo esc_attr( $style . ': ' . $value . '; ' );
}
}
/**
* Adjust a hex color brightness
* Allows us to create hover styles for custom link colors
*
* @param strong $hex hex color e.g. #111111.
* @param integer $steps factor by which to brighten/darken ranging from -255 (darken) to 255 (brighten).
* @return string brightened/darkened hex color
* @since 1.0.0
*/
function storefront_adjust_color_brightness( $hex, $steps ) {
// Steps should be between -255 and 255. Negative = darker, positive = lighter.
$steps = max( -255, min( 255, $steps ) );
// Format the hex color string.
$hex = str_replace( '#', '', $hex );
if ( 3 == strlen( $hex ) ) {
$hex = str_repeat( substr( $hex, 0, 1 ), 2 ) . str_repeat( substr( $hex, 1, 1 ), 2 ) . str_repeat( substr( $hex, 2, 1 ), 2 );
}
// Get decimal values.
$r = hexdec( substr( $hex, 0, 2 ) );
$g = hexdec( substr( $hex, 2, 2 ) );
$b = hexdec( substr( $hex, 4, 2 ) );
// Adjust number of steps and keep it inside 0 to 255.
$r = max( 0, min( 255, $r + $steps ) );
$g = max( 0, min( 255, $g + $steps ) );
$b = max( 0, min( 255, $b + $steps ) );
$r_hex = str_pad( dechex( $r ), 2, '0', STR_PAD_LEFT );
$g_hex = str_pad( dechex( $g ), 2, '0', STR_PAD_LEFT );
$b_hex = str_pad( dechex( $b ), 2, '0', STR_PAD_LEFT );
return '#' . $r_hex . $g_hex . $b_hex;
}
/**
* Sanitizes choices (selects / radios)
* Checks that the input matches one of the available choices
*
* @param array $input the available choices.
* @param array $setting the setting object.
* @since 1.3.0
*/
function storefront_sanitize_choices( $input, $setting ) {
// Ensure input is a slug.
$input = sanitize_key( $input );
// Get list of choices from the control associated with the setting.
$choices = $setting->manager->get_control( $setting->id )->choices;
// If the input is a valid key, return it; otherwise, return the default.
return ( array_key_exists( $input, $choices ) ? $input : $setting->default );
}
/**
* Checkbox sanitization callback.
*
* Sanitization callback for 'checkbox' type controls. This callback sanitizes `$checked`
* as a boolean value, either TRUE or FALSE.
*
* @param bool $checked Whether the checkbox is checked.
* @return bool Whether the checkbox is checked.
* @since 1.5.0
*/
function storefront_sanitize_checkbox( $checked ) {
return ( ( isset( $checked ) && true == $checked ) ? true : false );
}
if ( ! function_exists( 'is_woocommerce_activated' ) ) {
/**
* Query WooCommerce activation
*/
function is_woocommerce_activated() {
_deprecated_function( 'is_woocommerce_activated', '2.1.6', 'storefront_is_woocommerce_activated' );
return class_exists( 'woocommerce' ) ? true : false;
}
}
/**
* Schema type
*
* @return void
*/
function storefront_html_tag_schema() {
_deprecated_function( 'storefront_html_tag_schema', '2.0.2' );
$schema = 'http://schema.org/';
$type = 'WebPage';
if ( is_singular( 'post' ) ) {
$type = 'Article';
} elseif ( is_author() ) {
$type = 'ProfilePage';
} elseif ( is_search() ) {
$type = 'SearchResultsPage';
}
echo 'itemscope="itemscope" itemtype="' . esc_attr( $schema ) . esc_attr( $type ) . '"';
}
/**
* Sanitizes the layout setting
*
* Ensures only array keys matching the original settings specified in add_control() are valid
*
* @param array $input the layout options.
* @since 1.0.3
*/
function storefront_sanitize_layout( $input ) {
_deprecated_function( 'storefront_sanitize_layout', '2.0', 'storefront_sanitize_choices' );
$valid = array(
'right' => 'Right',
'left' => 'Left',
);
if ( array_key_exists( $input, $valid ) ) {
return $input;
} else {
return '';
}
}
/**
* Storefront Sanitize Hex Color
*
* @param string $color The color as a hex.
* @todo remove in 2.1.
*/
function storefront_sanitize_hex_color( $color ) {
_deprecated_function( 'storefront_sanitize_hex_color', '2.0', 'sanitize_hex_color' );
if ( '' === $color ) {
return '';
}
// 3 or 6 hex digits, or the empty string.
if ( preg_match( '|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
return $color;
}
return null;
}
/**
* Returns true if a blog has more than 1 category.
*
* @return bool
* @todo remove in 2.1.
*/
function storefront_categorized_blog() {
_deprecated_function( 'storefront_categorized_blog', '2.0' );
if ( false === ( $all_the_cool_cats = get_transient( 'storefront_categories' ) ) ) {
// Create an array of all the categories that are attached to posts.
$all_the_cool_cats = get_categories( array(
'fields' => 'ids',
'hide_empty' => 1,
// We only need to know if there is more than one category.
'number' => 2,
) );
// Count the number of categories that are attached to the posts.
$all_the_cool_cats = count( $all_the_cool_cats );
set_transient( 'storefront_categories', $all_the_cool_cats );
}
if ( $all_the_cool_cats > 1 ) {
// This blog has more than 1 category so storefront_categorized_blog should return true.
return true;
} else {
// This blog has only 1 category so storefront_categorized_blog should return false.
return false;
}
}