diff options
Diffstat (limited to 'plugins/jetpack/modules/shortcodes/archiveorg-book.php')
-rw-r--r-- | plugins/jetpack/modules/shortcodes/archiveorg-book.php | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/shortcodes/archiveorg-book.php b/plugins/jetpack/modules/shortcodes/archiveorg-book.php new file mode 100644 index 00000000..88ac328c --- /dev/null +++ b/plugins/jetpack/modules/shortcodes/archiveorg-book.php @@ -0,0 +1,130 @@ +<?php +/** + * Archive.org Shortcode + * + * Usage: + * [archiveorg-book goodytwoshoes00newyiala] + * [archiveorg-book http://www.archive.org/stream/goodytwoshoes00newyiala] + * [archiveorg id=goodytwoshoes00newyiala width=480 height=430] + + * <iframe src='https://www.archive.org/stream/goodytwoshoes00newyiala?ui=embed#mode/1up' width='480px' height='430px' frameborder='0' ></iframe> + * + * @package Jetpack + */ + +/** + * Get ID of requested archive.org book embed. + * + * @since 4.5.0 + * + * @param array $atts Shortcode attributes. + * + * @return int|string + */ +function jetpack_shortcode_get_archiveorg_book_id( $atts ) { + if ( isset( $atts[0] ) ) { + $atts[0] = trim( $atts[0], '=' ); + if ( preg_match( '#archive.org/stream/(.+)/?$#i', $atts[0], $match ) ) { + $id = $match[1]; + } else { + $id = $atts[0]; + } + return $id; + } + return 0; +} + +/** + * Convert an archive.org book shortcode into an embed code. + * + * @since 4.5.0 + * + * @param array $atts An array of shortcode attributes. + * @return string The embed code for the Archive.org book + */ +function jetpack_archiveorg_book_shortcode( $atts ) { + global $content_width; + + if ( isset( $atts[0] ) && empty( $atts['id'] ) ) { + $atts['id'] = jetpack_shortcode_get_archiveorg_book_id( $atts ); + } + + $atts = shortcode_atts( + array( + 'id' => '', + 'width' => 480, + 'height' => 430, + ), + $atts + ); + + if ( ! $atts['id'] ) { + return '<!-- error: missing archive.org book ID -->'; + } + + $id = $atts['id']; + + if ( ! $atts['width'] ) { + $width = absint( $content_width ); + } else { + $width = intval( $atts['width'] ); + } + + if ( ! $atts['height'] ) { + $height = round( ( $width / 640 ) * 360 ); + } else { + $height = intval( $atts['height'] ); + } + + $url = esc_url( set_url_scheme( "http://archive.org/stream/{$id}?ui=embed#mode/1up" ) ); + + $html = "<div class='embed-archiveorg-book' style='text-align:center;'><iframe src='$url' width='$width' height='$height' style='border:0;' webkitallowfullscreen='true' mozallowfullscreen='true' allowfullscreen></iframe></div>"; + return $html; +} + +add_shortcode( 'archiveorg-book', 'jetpack_archiveorg_book_shortcode' ); + +/** + * Compose shortcode from archive.org book iframe. + * + * @since 4.5.0 + * + * @param string $content Post content. + * + * @return mixed + */ +function jetpack_archiveorg_book_embed_to_shortcode( $content ) { + if ( ! is_string( $content ) || false === stripos( $content, 'archive.org/stream/' ) ) { + return $content; + } + + $regexp = '!<iframe\s+src=[\'"](http|https)://(www.archive|archive)\.org/stream/([^\'"]+)[\'"]((?:\s+\w+(=[\'"][^\'"]*[\'"])?)*)\s></iframe>!i'; + + if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) { + return $content; + } + + foreach ( $matches as $match ) { + $url = explode( '?', $match[3] ); + $id = $url[0]; + + $params = $match[4]; + + $params = wp_kses_hair( $params, array( 'http' ) ); + + $width = isset( $params['width'] ) ? absint( $params['width']['value'] ) : 0; + $height = isset( $params['height'] ) ? absint( $params['height']['value'] ) : 0; + + $wh = ''; + if ( $width && $height ) { + $wh = ' width=' . $width . ' height=' . $height; + } + + $shortcode = '[archiveorg-book ' . $id . $wh . ']'; + $content = str_replace( $match[0], $shortcode, $content ); + } + + return $content; +} + +add_filter( 'pre_kses', 'jetpack_archiveorg_book_embed_to_shortcode' ); |