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<?php
/**
* Shortcode handler for [bandcamp], which inserts a bandcamp.com
* music player (iframe, html5)
*
* [bandcamp album=119385304]
* [bandcamp album=3462839126 bgcol=FFFFFF linkcol=4285BB size=venti]
* [bandcamp track=2446959313]
*
* @package Jetpack
*/
/**
* Display the Bandcamp shortcode.
*
* @param array $atts Shortcode attributes.
*/
function shortcode_handler_bandcamp( $atts ) {
// there are no default values, but specify here anyway to explicitly list supported atts.
$attributes = shortcode_atts(
array(
'album' => null, // integer album id.
'track' => null, // integer track id.
'video' => null, // integer track id for video player.
'size' => 'venti', // one of the supported sizes.
'bgcol' => 'FFFFFF', // hex, no '#' prefix.
'linkcol' => null, // hex, no '#' prefix.
'layout' => null, // encoded layout url.
'width' => null, // integer with optional "%".
'height' => null, // integer with optional "%".
'notracklist' => null, // may be string "true" (defaults false).
'tracklist' => null, // may be string "false" (defaults true).
'artwork' => null, // may be string "false" (alternately: "none") or "small" (default is large).
'minimal' => null, // may be string "true" (defaults false).
'theme' => null, // may be theme identifier string ("light"|"dark" so far).
'package' => null, // integer package id.
't' => null, // integer track number.
'tracks' => null, // comma separated list of allowed tracks.
'esig' => null, // hex, no '#' prefix.
),
$atts,
'bandcamp'
);
$sizes = array(
'venti' => array(
'width' => 400,
'height' => 100,
),
'grande' => array(
'width' => 300,
'height' => 100,
),
'grande2' => array(
'width' => 300,
'height' => 355,
),
'grande3' => array(
'width' => 300,
'height' => 415,
),
'tall_album' => array(
'width' => 150,
'height' => 295,
),
'tall_track' => array(
'width' => 150,
'height' => 270,
),
'tall2' => array(
'width' => 150,
'height' => 450,
),
'short' => array(
'width' => 46,
'height' => 23,
),
'large' => array(
'width' => 350,
'height' => 470,
),
'medium' => array(
'width' => 450,
'height' => 120,
),
'small' => array(
'width' => 350,
'height' => 42,
),
);
$sizekey = $attributes['size'];
$height = null;
$width = null;
$is_video = false;
/*
* Build iframe url. For audio players, args are appended as
* extra path segments for historical reasons having to
* do with an IE-only flash bug which required this URL
* to contain no querystring. Delay the actual joining
* of args into a string until after we decide if it's
* a video player or an audio player
*/
$argparts = array();
if ( ! isset( $attributes['album'] ) && ! isset( $attributes['track'] ) && ! isset( $attributes['video'] ) ) {
return "[bandcamp: shortcode must include 'track', 'album', or 'video' param]";
}
if ( isset( $attributes['track'] ) && is_numeric( $attributes['track'] ) ) {
$track = esc_attr( $attributes['track'] );
array_push( $argparts, "track={$track}" );
} elseif ( isset( $attributes['video'] ) && is_numeric( $attributes['video'] ) ) {
$track = esc_attr( $attributes['video'] ); // videos are referenced by track id.
$url = '//bandcamp.com/EmbeddedPlayer/v=2';
$is_video = true;
array_push( $argparts, "track={$track}" );
}
if ( isset( $attributes['album'] ) && is_numeric( $attributes['album'] ) ) {
$album = esc_attr( $attributes['album'] );
array_push( $argparts, "album={$album}" );
}
if ( 'tall' === $sizekey ) {
if ( isset( $attributes['album'] ) ) {
$sizekey .= '_album';
} else {
$sizekey .= '_track';
}
}
// if size specified that we don't recognize, fall back on venti.
if ( empty( $sizes[ $sizekey ] ) ) {
$sizekey = 'venti';
$attributes['size'] = 'venti';
}
/*
* use strict regex for digits + optional % instead of absint for height/width
* 'width' and 'height' params in the iframe url get the exact string from the shortcode
* args, whereas the inline style attribute must have "px" added to it if it has no "%"
*/
if ( isset( $attributes['width'] ) && preg_match( '|^([0-9]+)(%)?$|', $attributes['width'], $matches ) ) {
$width = $attributes['width'];
$csswidth = $attributes['width'];
if ( count( $matches ) < 3 ) {
$csswidth .= 'px';
}
}
if ( isset( $attributes['height'] ) && preg_match( '|^([0-9]+)(%)?$|', $attributes['height'], $matches ) ) {
$height = $attributes['height'];
$cssheight = $attributes['height'];
if ( count( $matches ) < 3 ) {
$cssheight .= 'px';
}
}
if ( ! $height ) {
$height = $sizes[ $sizekey ]['height'];
$cssheight = $height . 'px';
}
if ( ! $width ) {
$width = $sizes[ $sizekey ]['width'];
$csswidth = $width . 'px';
}
if ( isset( $attributes['layout'] ) ) {
array_push( $argparts, "layout={$attributes['layout']}" );
} elseif ( isset( $attributes['size'] ) && preg_match( '|^[a-zA-Z0-9]+$|', $attributes['size'] ) ) {
array_push( $argparts, "size={$attributes['size']}" );
}
if ( isset( $attributes['bgcol'] ) && preg_match( '|^[0-9A-Fa-f]+$|', $attributes['bgcol'] ) ) {
array_push( $argparts, "bgcol={$attributes['bgcol']}" );
}
if ( isset( $attributes['linkcol'] ) && preg_match( '|^[0-9A-Fa-f]+$|', $attributes['linkcol'] ) ) {
array_push( $argparts, "linkcol={$attributes['linkcol']}" );
}
if ( isset( $attributes['package'] ) && preg_match( '|^[0-9]+$|', $attributes['package'] ) ) {
array_push( $argparts, "package={$attributes['package']}" );
}
if ( isset( $attributes['t'] ) && preg_match( '|^[0-9]+$|', $attributes['t'] ) ) {
array_push( $argparts, "t={$attributes['t']}" );
}
if ( 'true' === $attributes['notracklist'] ) {
array_push( $argparts, 'notracklist=true' );
}
// 'tracklist' arg deprecates 'notracklist=true' to be less weird. note, behavior
// if both are specified is undefined
switch ( $attributes['tracklist'] ) {
case 'false':
case 'none':
array_push( $argparts, 'tracklist=false' );
break;
}
switch ( $attributes['artwork'] ) {
case 'false':
case 'none':
case 'small':
array_push( $argparts, 'artwork=' . $attributes['artwork'] );
break;
}
if ( 'true' === $attributes['minimal'] ) {
array_push( $argparts, 'minimal=true' );
}
if ( isset( $attributes['theme'] ) && preg_match( '|^[a-zA-Z_]+$|', $attributes['theme'] ) ) {
array_push( $argparts, "theme={$attributes['theme']}" );
}
// param 'tracks' is signed digest param 'esig'.
if ( isset( $attributes['tracks'] ) && preg_match( '|^[0-9\,]+$|', $attributes['tracks'] ) ) {
if ( isset( $attributes['esig'] ) && preg_match( '|^[0-9A-Fa-f]+$|', $attributes['esig'] ) ) {
array_push( $argparts, "tracks={$attributes['tracks']}" );
array_push( $argparts, "esig={$attributes['esig']}" );
}
}
if ( $is_video ) {
$url = '//bandcamp.com/VideoEmbed?' . join( '&', $argparts );
$extra_attrs = " mozallowfullscreen='1' webkitallowfullscreen='1' allowfullscreen='1'";
} else {
$url = '//bandcamp.com/EmbeddedPlayer/v=2/' . join( '/', $argparts ) . '/';
$extra_attrs = '';
}
$iframe = '<iframe width="%s" height="%s" style="position: relative; display: block; width: %s; height: %s;" src="%s" allowtransparency="true" frameborder="0"%s></iframe>';
$iframe = sprintf( $iframe, esc_attr( $width ), esc_attr( $height ), esc_attr( $csswidth ), esc_attr( $cssheight ), esc_url( $url ), $extra_attrs );
return $iframe;
}
add_shortcode( 'bandcamp', 'shortcode_handler_bandcamp' );
|
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