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Diffstat (limited to 'plugins/jetpack/modules/shortcodes/archiveorg.php')
| -rw-r--r-- | plugins/jetpack/modules/shortcodes/archiveorg.php | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/shortcodes/archiveorg.php b/plugins/jetpack/modules/shortcodes/archiveorg.php new file mode 100644 index 00000000..4a335b32 --- /dev/null +++ b/plugins/jetpack/modules/shortcodes/archiveorg.php @@ -0,0 +1,160 @@ +<?php +/** + * Archive.org book shortcode. + * + * Usage: + * [archiveorg Experime1940] + * [archiveorg http://archive.org/details/Experime1940 poster=http://archive.org/images/map.png] + * [archiveorg id=Experime1940 width=640 height=480 autoplay=1] + + * <iframe src="http://archive.org/embed/Experime1940&autoplay=1&poster=http://archive.org/images/map.png" width="640" height="480" frameborder="0" webkitallowfullscreen="true" mozallowfullscreen="true" allowfullscreen></iframe> + * + * @package Jetpack + */ + +/** + * Get ID of requested archive.org embed. + * + * @since 4.5.0 + * + * @param array $atts Shortcode attributes. + * + * @return int|string + */ +function jetpack_shortcode_get_archiveorg_id( $atts ) { + if ( isset( $atts[0] ) ) { + $atts[0] = trim( $atts[0], '=' ); + if ( preg_match( '#archive.org/(details|embed)/(.+)/?$#i', $atts[0], $match ) ) { + $id = $match[2]; + } else { + $id = $atts[0]; + } + return $id; + } + return 0; +} + +/** + * Convert an archive.org 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 video. + */ +function jetpack_archiveorg_shortcode( $atts ) { + global $content_width; + + if ( isset( $atts[0] ) && empty( $atts['id'] ) ) { + $atts['id'] = jetpack_shortcode_get_archiveorg_id( $atts ); + } + + $atts = shortcode_atts( + array( + 'id' => '', + 'width' => 640, + 'height' => 480, + 'autoplay' => 0, + 'poster' => '', + ), + $atts + ); + + if ( ! $atts['id'] ) { + return '<!-- error: missing archive.org 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'] ); + } + + if ( $atts['autoplay'] ) { + $autoplay = '&autoplay=1'; + } else { + $autoplay = ''; + } + + if ( $atts['poster'] ) { + $poster = '&poster=' . $atts['poster']; + } else { + $poster = ''; + } + + $url = esc_url( set_url_scheme( "https://archive.org/embed/{$id}{$autoplay}{$poster}" ) ); + + $html = "<div class='embed-archiveorg' style='text-align:center;'><iframe src='$url' width='$width' height='$height' style='border:0;' webkitallowfullscreen='true' mozallowfullscreen='true' allowfullscreen></iframe></div>"; + + return $html; +} + +add_shortcode( 'archiveorg', 'jetpack_archiveorg_shortcode' ); + +/** + * Compose shortcode from archive.org iframe. + * + * @since 4.5.0 + * + * @param string $content Post content. + * + * @return mixed + */ +function jetpack_archiveorg_embed_to_shortcode( $content ) { + if ( ! is_string( $content ) || false === stripos( $content, 'archive.org/embed/' ) ) { + return $content; + } + + $regexp = '!<iframe\s+src=[\'"]https?://archive\.org/embed/([^\'"]+)[\'"]((?:\s+\w+(=[\'"][^\'"]*[\'"])?)*)></iframe>!i'; + + if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) { + return $content; + } + + foreach ( $matches as $match ) { + $url = explode( '&', $match[1] ); + $id = 'id=' . $url[0]; + + $autoplay = ''; + $poster = ''; + $url_count = count( $url ); + + for ( $ii = 1; $ii < $url_count; $ii++ ) { + if ( 'autoplay=1' === $url[ $ii ] ) { + $autoplay = ' autoplay="1"'; + } + + $map_matches = array(); + if ( preg_match( '/^poster=(.+)$/', $url[ $ii ], $map_matches ) ) { + $poster = " poster=\"{$map_matches[1]}\""; + } + } + + $params = $match[2]; + + $params = wp_kses_hair( $params, array( 'http' ) ); + + $width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0; + $height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0; + + $wh = ''; + if ( $width && $height ) { + $wh = ' width=' . $width . ' height=' . $height; + } + + $shortcode = '[archiveorg ' . $id . $wh . $autoplay . $poster . ']'; + $content = str_replace( $match[0], $shortcode, $content ); + } + + return $content; +} + +add_filter( 'pre_kses', 'jetpack_archiveorg_embed_to_shortcode' ); |