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<?php
/**
* The functions to display Content or Excerpt in a theme.
*/
/**
* If the theme doesn't support 'jetpack-content-options', don't continue.
*/
if ( ! current_theme_supports( 'jetpack-content-options' ) ) {
return;
}
/**
* Get the Blog Display setting.
* If theme is using both 'Content' and 'Excerpt' then this setting will be called 'Mixed'.
*/
$options = get_theme_support( 'jetpack-content-options' );
$blog_display = ( ! empty( $options[0]['blog-display'] ) ) ? $options[0]['blog-display'] : null;
$blog_display = preg_grep( '/^(content|excerpt)$/', (array) $blog_display );
sort( $blog_display );
$blog_display = implode( ', ', $blog_display );
$blog_display = ( 'content, excerpt' === $blog_display ) ? 'mixed' : $blog_display;
/**
* If the theme doesn't support 'jetpack-content-options[ 'blog-display' ]', don't continue.
*/
if ( ! in_array( $blog_display, array( 'content', 'excerpt', 'mixed' ) ) ) {
return;
}
/**
* Apply Content filters.
*/
function jetpack_blog_display_custom_excerpt( $content ) {
$post = get_post();
if ( empty( $post->post_excerpt ) ) {
$text = strip_shortcodes( $post->post_content );
$text = str_replace( ']]>', ']]>', $text );
$text = strip_tags( $text );
/** This filter is documented in wp-includes/formatting.php */
$excerpt_length = apply_filters( 'excerpt_length', 55 );
/** This filter is documented in wp-includes/formatting.php */
$excerpt_more = apply_filters( 'excerpt_more', ' ' . '[...]' );
/*
* translators: If your word count is based on single characters (e.g. East Asian characters),
* enter 'characters_excluding_spaces' or 'characters_including_spaces'. Otherwise, enter 'words'.
* Do not translate into your own language.
*/
if ( strpos( _x( 'words', 'Word count type. Do not translate!', 'jetpack' ), 'characters' ) === 0 && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) {
$text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' );
preg_match_all( '/./u', $text, $words );
$words = array_slice( $words[0], 0, $excerpt_length + 1 );
$sep = '';
} else {
$words = preg_split( "/[\n\r\t ]+/", $text, $excerpt_length + 1, PREG_SPLIT_NO_EMPTY );
$sep = ' ';
}
if ( count( $words ) > $excerpt_length ) {
array_pop( $words );
$text = implode( $sep, $words );
$text = $text . $excerpt_more;
} else {
$text = implode( $sep, $words );
}
} else {
$text = wp_kses_post( $post->post_excerpt );
}
return sprintf( '<p>%s</p>', $text );
}
/**
* Display Excerpt instead of Content.
*/
function jetpack_the_content_to_the_excerpt( $content ) {
if ( is_home() || is_archive() ) {
if ( post_password_required() ) {
$content = sprintf( '<p>%s</p>', esc_html__( 'There is no excerpt because this is a protected post.', 'jetpack' ) );
} else {
$content = jetpack_blog_display_custom_excerpt( $content );
}
}
return $content;
}
/**
* Display Content instead of Excerpt.
*/
function jetpack_the_excerpt_to_the_content( $content ) {
if ( is_home() || is_archive() ) {
ob_start();
the_content( sprintf(
wp_kses(
/* translators: %s: Name of current post. Only visible to screen readers */
__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'jetpack' ),
array(
'span' => array(
'class' => array(),
),
)
),
get_the_title()
) );
$content = ob_get_clean();
}
return $content;
}
/**
* Display both Content and Excerpt instead of Content in the Customizer so live preview can switch between them.
*/
function jetpack_the_content_customizer( $content ) {
$class = jetpack_the_content_customizer_class();
if ( is_home() || is_archive() ) {
if ( post_password_required() ) {
$excerpt = sprintf( '<p>%s</p>', esc_html__( 'There is no excerpt because this is a protected post.', 'jetpack' ) );
} else {
$excerpt = jetpack_blog_display_custom_excerpt( $content );
}
}
if ( empty( $excerpt ) ) {
return $content;
} else {
return sprintf( '<div class="jetpack-blog-display %s jetpack-the-content">%s</div><div class="jetpack-blog-display %s jetpack-the-excerpt">%s</div>', $class, $content, $class, $excerpt );
}
}
/**
* Display both Content and Excerpt instead of Excerpt in the Customizer so live preview can switch between them.
*/
function jetpack_the_excerpt_customizer( $excerpt ) {
if ( is_home() || is_archive() ) {
ob_start();
the_content( sprintf(
wp_kses(
/* translators: %s: Name of current post. Only visible to screen readers */
__( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'jetpack' ),
array(
'span' => array(
'class' => array(),
),
)
),
get_the_title()
) );
$content = ob_get_clean();
}
if ( empty( $content ) ) {
return $excerpt;
} else {
return sprintf( '<div class="jetpack-blog-display jetpack-the-content">%s</div><div class="jetpack-blog-display jetpack-the-excerpt">%s</div>', $content, $excerpt );
}
}
/**
* Display Content instead of Excerpt in the Customizer when theme uses a 'Mixed' display.
*/
function jetpack_the_excerpt_mixed_customizer( $content ) {
if ( is_home() || is_archive() ) {
jetpack_the_content_customizer_class( 'output-the-excerpt' );
ob_start();
the_content();
$content = ob_get_clean();
}
return $content;
}
/**
* Returns a class value, `output-the-content` by default.
* Used for themes with a 'Mixed' Blog Display so we can tell which output is by default.
*/
function jetpack_the_content_customizer_class( $new_class = null ) {
static $class;
if ( isset( $new_class ) ) {
// Assign a new class and return.
$class = $new_class;
} else if ( isset( $class ) ) {
// Reset the class after getting value.
$prev_class = $class;
$class = null;
return $prev_class;
} else {
// Return default class value.
return 'output-the-content';
}
}
if ( is_customize_preview() ) {
/*
* Display Content and Excerpt if the default Blog Display is 'Content'
* and we are in the Customizer.
*/
if ( 'content' === $blog_display ) {
add_filter( 'the_content', 'jetpack_the_content_customizer' );
}
/*
* Display Content and Excerpt if the default Blog Display is 'Excerpt'
* and we are in the Customizer.
*/
if ( 'excerpt' === $blog_display ) {
add_filter( 'the_excerpt', 'jetpack_the_excerpt_customizer' );
}
/*
* Display Content and Excerpt if the default Blog Display is 'Mixed'
* and we are in the Customizer.
*/
if ( 'mixed' === $blog_display ) {
add_filter( 'the_content', 'jetpack_the_content_customizer' );
add_filter( 'the_excerpt', 'jetpack_the_excerpt_mixed_customizer' );
}
} else {
$display_option = get_option( 'jetpack_content_blog_display', $blog_display );
/*
* Display Excerpt if the default Blog Display is 'Content'
* or default Blog Display is 'Mixed'
* and the Option picked is 'Post Excerpt'
* and we aren't in the Customizer.
*/
if ( ( 'content' === $blog_display || 'mixed' === $blog_display ) && 'excerpt' === $display_option ) {
add_filter( 'the_content', 'jetpack_the_content_to_the_excerpt' );
}
/*
* Display Content if the default Blog Display is 'Excerpt'
* or default Blog Display is 'Mixed'
* and the Option picked is 'Full Post'
* and we aren't in the Customizer.
*/
if ( ( 'excerpt' === $blog_display || 'mixed' === $blog_display ) && 'content' === $display_option ) {
add_filter( 'the_excerpt', 'jetpack_the_excerpt_to_the_content' );
}
}
|
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