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<?php
/**
* Module Name: Shortcode Embeds
* Module Description: Embed media from popular sites without any coding.
* Sort Order: 3
* First Introduced: 1.1
* Major Changes In: 1.2
* Requires Connection: No
* Auto Activate: Yes
* Module Tags: Photos and Videos, Social, Writing, Appearance
* Feature: Writing
* Additional Search Queries: shortcodes, shortcode, embeds, media, bandcamp, dailymotion, facebook, flickr, google calendars, google maps, google+, polldaddy, recipe, recipes, scribd, slideshare, slideshow, slideshows, soundcloud, ted, twitter, vimeo, vine, youtube
*/
/**
* Transforms the $atts array into a string that the old functions expected
*
* The old way was:
* [shortcode a=1&b=2&c=3] or [shortcode=1]
* This is parsed as array( a => '1&b=2&c=3' ) and array( 0 => '=1' ), which is useless
*
* @param array $params Array of old shortcode parameters.
* @param bool $old_format_support true if [shortcode=foo] format is possible.
*
* @return string $params
*/
function shortcode_new_to_old_params( $params, $old_format_support = false ) {
$str = '';
if ( $old_format_support && isset( $params[0] ) ) {
$str = ltrim( $params[0], '=' );
} elseif ( is_array( $params ) ) {
foreach ( array_keys( $params ) as $key ) {
if ( ! is_numeric( $key ) ) {
$str = $key . '=' . $params[ $key ];
}
}
}
return str_replace( array( '&', '&' ), '&', $str );
}
/**
* Load all available Jetpack shortcode files.
*/
function jetpack_load_shortcodes() {
$shortcode_includes = array();
foreach ( Jetpack::glob_php( dirname( __FILE__ ) . '/shortcodes' ) as $file ) {
$filename = substr( basename( $file ), 0, -4 );
$shortcode_includes[ $filename ] = $file;
}
/**
* This filter allows other plugins to override which shortcodes Jetpack loads.
*
* Fires as part of the `plugins_loaded` WP hook, so modifying code needs to be in a plugin, not in a theme's functions.php.
*
* @module shortcodes
*
* @since 2.2.1
* @since 4.2.0 Added filename without extension as array key.
*
* @param array $shortcode_includes An array of which shortcodes to include.
*/
$shortcode_includes = apply_filters( 'jetpack_shortcodes_to_include', $shortcode_includes );
foreach ( $shortcode_includes as $include ) {
include_once $include;
}
}
/**
* Runs preg_replace so that replacements don't happen within open tags.
* Parameters are the same as preg_replace, with an added optional search param for improved performance
*
* @param string $pattern Pattern to search for.
* @param string $replacement String to replace.
* @param string $content Post content.
* @param string $search String to search for.
*
* @return string $content Replaced post content.
*/
function jetpack_preg_replace_outside_tags( $pattern, $replacement, $content, $search = null ) {
if ( $search && false === strpos( $content, $search ) ) {
return $content;
}
$textarr = wp_html_split( $content );
unset( $content );
foreach ( $textarr as &$element ) {
if ( '' === $element || '<' === $element{0} ) {
continue;
}
$element = preg_replace( $pattern, $replacement, $element );
}
return join( $textarr );
}
/**
* Runs preg_replace_callback so that replacements don't happen within open tags.
* Parameters are the same as preg_replace, with an added optional search param for improved performance.
*
* @param string $pattern Pattern to search for.
* @param string $callback Callback returning the replacement string.
* @param string $content Post content.
* @param string $search String to search for.
*
* @return string $content Replaced post content.
*/
function jetpack_preg_replace_callback_outside_tags( $pattern, $callback, $content, $search = null ) {
if ( $search && false === strpos( $content, $search ) ) {
return $content;
}
$textarr = wp_html_split( $content );
unset( $content );
foreach ( $textarr as &$element ) {
if ( '' === $element || '<' === $element{0} ) {
continue;
}
$element = preg_replace_callback( $pattern, $callback, $element );
}
return join( $textarr );
}
if ( ! function_exists( 'jetpack_shortcode_get_wpvideo_id' ) ) {
/**
* Get VideoPress ID from wpvideo shortcode attributes.
*
* @param array $atts Shortcode attributes.
* @return int $id VideoPress ID.
*/
function jetpack_shortcode_get_wpvideo_id( $atts ) {
if ( isset( $atts[0] ) ) {
return $atts[0];
} else {
return 0;
}
}
}
if ( ! function_exists( 'jetpack_shortcode_get_videopress_id' ) ) {
/**
* Get VideoPress ID from videopress shortcode attributes.
*
* @param array $atts Shortcode attributes.
* @return int $id VideoPress ID.
*/
function jetpack_shortcode_get_videopress_id( $atts ) {
if ( isset( $atts[0] ) ) {
return $atts[0];
} else {
return 0;
}
}
}
/**
* Common element attributes parsing and sanitizing for src, width and height.
*
* @since 4.5.0
*
* @param array $attrs With original values.
*
* @return array $attrs With sanitized values.
*/
function wpcom_shortcodereverse_parseattr( $attrs ) {
$defaults = array(
'src' => false,
'width' => false,
'height' => false,
);
$attrs = shortcode_atts( $defaults, $attrs );
$attrs['src'] = strip_tags( $attrs['src'] ); // For sanity
$attrs['width'] = ( is_numeric( $attrs['width'] ) ) ? abs( intval( $attrs['width'] ) ) : $defaults['width'];
$attrs['height'] = ( is_numeric( $attrs['height'] ) ) ? abs( intval( $attrs['height'] ) ) : $defaults['height'];
return $attrs;
}
/**
* When an embed service goes away, we can use this handler
* to output a link for history's sake.
*/
function jetpack_deprecated_embed_handler( $matches, $attr, $url ) {
return sprintf( '<a href="%s">%s</a>', esc_url( $url ), esc_html( esc_url( $url ) ) );
}
jetpack_load_shortcodes();
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