%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Functions related to embedding single activity items externally.
*
* Relies on WordPress 4.5.
*
* @since 2.6.0
*
* @package BuddyPress
* @subpackage ActivityEmbeds
*/
// Exit if accessed directly.
defined( 'ABSPATH' ) || exit;
/**
* Loads our activity oEmbed component.
*
* @since 2.6.0
*/
function bp_activity_setup_oembed() {
buddypress()->activity->oembed = new BP_Activity_oEmbed_Extension;
}
add_action( 'bp_loaded', 'bp_activity_setup_oembed' );
/**
* Catch links in embed excerpt so top.location.href can be added.
*
* Due to <iframe sandbox="allow-top-navigation">, links in embeds can only be
* clicked if invoked with top.location.href via JS.
*
* @since 2.6.0
*
* @param string $text Embed excerpt
* @return string
*/
function bp_activity_embed_excerpt_onclick_location_filter( $text ) {
return preg_replace_callback( '/<a\s+[^>]*href=\"([^\"]*)\"/iU', 'bp_activity_embed_excerpt_onclick_location_filter_callback', $text );
}
/**
* Add onclick="top.location.href" to a link.
*
* @since 2.6.0
*
* @param array $matches Items matched by bp_activity_embed_excerpt_onclick_location_filter().
* @return string
*/
function bp_activity_embed_excerpt_onclick_location_filter_callback( $matches ) {
return sprintf( '<a href="%1$s" onclick="top.location.href=\'%1$s\'"', $matches[1] );
}
/**
* Add inline styles for BP activity embeds.
*
* @since 2.6.0
*/
function bp_activity_embed_add_inline_styles() {
if ( false === bp_is_single_activity() ) {
return;
}
$min = bp_core_get_minified_asset_suffix();
if ( is_rtl() ) {
$css = bp_locate_template_asset( "css/embeds-activity-rtl{$min}.css" );
} else {
$css = bp_locate_template_asset( "css/embeds-activity{$min}.css" );
}
// Bail if file wasn't found.
if ( false === $css ) {
return;
}
// Grab contents of CSS file and do some rudimentary CSS protection.
$css = file_get_contents( $css['file'] );
$css = wp_kses( $css, array( "\'", '\"' ) );
printf( '<style type="text/css">%s</style>', $css );
}
add_action( 'embed_head', 'bp_activity_embed_add_inline_styles', 20 );
/**
* Query for the activity item on the activity embed template.
*
* Basically a wrapper for {@link bp_has_activities()}, but allows us to
* use the activity loop without requerying for it again.
*
* @since 2.6.0
*
* @param int $activity_id The activity ID.
* @return bool
*/
function bp_activity_embed_has_activity( $activity_id = 0 ) {
global $activities_template;
if ( empty( $activity_id ) ) {
return false;
}
if ( ! empty( $activities_template->activities ) ) {
$activity = (array) $activities_template->activities;
$activity = reset( $activity );
// No need to requery if we already got the embed activity
if ( (int) $activity_id === $activity->id ) {
return $activities_template->has_activities();
}
}
return bp_has_activities( array(
'display_comments' => 'threaded',
'show_hidden' => true,
'include' => (int) $activity_id,
) );
}
/**
* Outputs excerpt for an activity embed item.
*
* @since 2.6.0
*/
function bp_activity_embed_excerpt( $content = '' ) {
echo bp_activity_get_embed_excerpt( $content );
}
/**
* Generates excerpt for an activity embed item.
*
* @since 2.6.0
*
* @param string $content The content to generate an excerpt for.
* @return string
*/
function bp_activity_get_embed_excerpt( $content = '' ) {
if ( empty( $content ) && ! empty( $GLOBALS['activities_template']->in_the_loop ) ) {
$content = $GLOBALS['activities_template']->activity->content;
}
/*
* bp_activity_truncate_entry() includes the 'Read More' link, which is why
* we're using this instead of bp_create_excerpt().
*/
$content = html_entity_decode( $content );
$content = bp_activity_truncate_entry( $content, array(
'html' => false,
'filter_shortcodes' => true,
'strip_tags' => true,
'force_truncate' => true
) );
/**
* Filter the activity embed excerpt.
*
* @since 2.6.0
*
* @var string $content Embed Excerpt.
* @var string $unmodified_content Unmodified activity content.
*/
return apply_filters( 'bp_activity_get_embed_excerpt', $content, $GLOBALS['activities_template']->activity->content );
}
/**
* Outputs the first embedded item in the activity oEmbed template.
*
* @since 2.6.0
*/
function bp_activity_embed_media() {
// Bail if oEmbed request explicitly hides media.
if ( isset( $_GET['hide_media'] ) && true == wp_validate_boolean( $_GET['hide_media'] ) ) {
/**
* Do something after media is rendered for an activity oEmbed item.
*
* @since 2.6.0
*/
do_action( 'bp_activity_embed_after_media' );
return;
}
/**
* Should we display media in the oEmbed template?
*
* @since 2.6.0
*
* @param bool $retval Defaults to true.
*/
$allow_media = apply_filters( 'bp_activity_embed_display_media', true );
// Find oEmbeds from only WP registered providers.
bp_remove_all_filters( 'oembed_providers' );
$media = bp_core_extract_media_from_content( $GLOBALS['activities_template']->activity->content, 'embeds' );
bp_restore_all_filters( 'oembed_providers' );
// oEmbeds have precedence over inline video / audio.
if ( isset( $media['embeds'] ) && true === $allow_media ) {
// Autoembed first URL.
$oembed_defaults = wp_embed_defaults();
$oembed_args = array(
'width' => $oembed_defaults['width'],
'height' => $oembed_defaults['height'],
'discover' => true
);
$url = $media['embeds'][0]['url'];
$cachekey = '_oembed_response_' . md5( $url . serialize( $oembed_args ) );
// Try to fetch oEmbed response from meta.
$oembed = bp_activity_get_meta( bp_get_activity_id(), $cachekey );
// No cache, so fetch full oEmbed response now!
if ( '' === $oembed ) {
$o = _wp_oembed_get_object();
$oembed = $o->fetch( $o->get_provider( $url, $oembed_args ), $url, $oembed_args );
// Cache oEmbed response.
bp_activity_update_meta( bp_get_activity_id(), $cachekey, $oembed );
}
$content = '';
/**
* Filters the default embed display max width.
*
* This is used if the oEmbed response does not return a thumbnail width.
*
* @since 2.6.0
*
* @param int $width.
*/
$width = (int) apply_filters( 'bp_activity_embed_display_media_width', 550 );
// Set thumbnail.
if ( 'photo' === $oembed->type ) {
$thumbnail = $oembed->url;
} elseif ( isset( $oembed->thumbnail_url ) ) {
$thumbnail = $oembed->thumbnail_url;
/* Non-oEmbed standard attributes */
// Mixcloud
} elseif ( isset( $oembed->image ) ) {
$thumbnail = $oembed->image;
// ReverbNation
} elseif ( isset( $oembed->{'thumbnail-url'} ) ) {
$thumbnail = $oembed->{'thumbnail-url'};
}
// Display thumb and related oEmbed meta.
if ( true === isset ( $thumbnail ) ) {
$play_icon = $caption = '';
// Add play icon for non-photos.
if ( 'photo' !== $oembed->type ) {
/**
* ion-play icon from Ionicons.
*
* @link http://ionicons.com/
* @license MIT
*/
$play_icon = <<<EOD
<svg id="Layer_1" style="enable-background:new 0 0 512 512;" version="1.1" viewBox="0 0 512 512" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><path d="M405.2,232.9L126.8,67.2c-3.4-2-6.9-3.2-10.9-3.2c-10.9,0-19.8,9-19.8,20H96v344h0.1c0,11,8.9,20,19.8,20 c4.1,0,7.5-1.4,11.2-3.4l278.1-165.5c6.6-5.5,10.8-13.8,10.8-23.1C416,246.7,411.8,238.5,405.2,232.9z"/></svg>
EOD;
$play_icon = sprintf( '<a rel="nofollow" class="play-btn" href="%1$s" onclick="top.location.href=\'%1$s\'">%2$s</a>', esc_url( $url ), $play_icon );
}
// Thumb width
$thumb_width = isset( $oembed->thumbnail_width ) && 'photo' !== $oembed->type && (int) $oembed->thumbnail_width < 550 ? (int) $oembed->thumbnail_width : $width;
$float_width = 350;
// Set up thumb.
$content = sprintf( '<div class="thumb" style="max-width:%1$spx">%2$s<a href="%3$s" rel="nofollow" onclick="top.location.href=\'%3$s\'"><img src="%4$s" /></a></div>', $thumb_width, $play_icon, esc_url( $url ), esc_url( $thumbnail ) );
// Show title.
if ( isset( $oembed->title ) ) {
$caption .= sprintf( '<p class="caption-title"><strong>%s</strong></p>', apply_filters( 'single_post_title', $oembed->title ) );
}
// Show description (non-oEmbed standard)
if ( isset( $oembed->description ) ) {
$caption .= sprintf( '<div class="caption-description">%s</div>', apply_filters( 'bp_activity_get_embed_excerpt', $oembed->description ) );
}
// Show author info.
if ( isset( $oembed->provider_name ) && isset( $oembed->author_name ) ) {
/* translators: By [oEmbed author] on [oEmbed provider]. eg. By BuddyPress on YouTube. */
$anchor_text = sprintf( __( 'By %1$s on %2$s', 'buddypress' ), $oembed->author_name, $oembed->provider_name );
} elseif ( isset( $oembed->provider_name ) ) {
$anchor_text = sprintf( __( 'View on %s', 'buddypress' ), $oembed->provider_name );
}
if ( true === isset( $anchor_text ) ) {
$caption .= sprintf( '<a rel="nofollow" href="%1$s" onclick="top.location.href=\'%1$s\'">%2$s</a>', esc_url( $url ), apply_filters( 'the_title', $anchor_text ) );
}
// Set up caption.
if ( '' !== $caption ) {
$css_class = isset( $oembed->provider_name ) ? sprintf( ' provider-%s', sanitize_html_class( strtolower( $oembed->provider_name ) ) ) : '';
$caption = sprintf( '<div class="caption%1$s" style="width:%2$s">%3$s</div>',
$css_class,
$thumb_width > $float_width ? 100 . '%' : round( ( $width - (int) $thumb_width ) / $width * 100 ) . '%',
$caption
);
$content .= $caption;
}
}
// Print rich content.
if ( '' !== $content ) {
printf( '<div class="bp-activity-embed-display-media %s" style="max-width:%spx">%s</div>',
$thumb_width < $float_width ? 'two-col' : 'one-col',
$thumb_width < $float_width ? $width : $thumb_width,
$content
);
}
// Video / audio.
} elseif ( true === $allow_media ) {
// Call BP_Embed if it hasn't already loaded.
bp_embed_init();
// Run shortcode and embed routine.
$content = buddypress()->embed->run_shortcode( $GLOBALS['activities_template']->activity->content );
$content = buddypress()->embed->autoembed( $content );
// Try to find inline video / audio.
$media = bp_core_extract_media_from_content( $content, 96 );
// Video takes precedence. HTML5-only.
if ( isset( $media['videos'] ) && 'shortcodes' === $media['videos'][0]['source'] ) {
printf( '<video controls preload="metadata"><source src="%1$s"><p>%2$s</p></video>',
esc_url( $media['videos'][0]['url'] ),
esc_html__( 'Your browser does not support HTML5 video', 'buddypress' )
);
// No video? Try audio. HTML5-only.
} elseif ( isset( $media['audio'] ) && 'shortcodes' === $media['audio'][0]['source'] ) {
printf( '<audio controls preload="metadata"><source src="%1$s"><p>%2$s</p></audio>',
esc_url( $media['audio'][0]['url'] ),
esc_html__( 'Your browser does not support HTML5 audio', 'buddypress' )
);
}
}
/** This hook is documented in /bp-activity/bp-activity-embeds.php */
do_action( 'bp_activity_embed_after_media' );
}
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