/**
* Generate embed code
*
* Generate XHTML compatible YouTube embed code
*
* @since 2.0
*
* @uses vye_add_links Add links under video
* @uses vye_error Display an error
* @uses vye_extract_id Get the video ID
* @uses vye_validate_list Get the requested listr
* @uses vye_validate_id Validate the video ID
* @uses vye_validate_profile Get the requested profile
* @uses vye_set_general_defaults Get general options
* @uses vye_set_profile_defaults Set default profile options
*
* @param string $id Video ID
* @param string $width Video width
* @param string $height Video height
* @param string $fullscreen Fullscreen button
* @param string $related Show related info.
* @param string $autoplay Start video automatically
* @param string $loop Loop video to start
* @param string $start Start in seconds
* @param string $info Show video info.
* @param string $annotation Annotations
* @param string $cc Closed captions
* @param string $style Stylesheet information
* @param string $stop Stop in seconds
* @param string $disablekb Disable keyboard controls
* @param string $ratio Video size ratio
* @param string $autohide Autohide controls
* @param string $controls Display controls
* @param string $profile Which profile to use
* @param string $list_style How to use a list, if used
* @param string $template Display template
* @param string $color Progress bar color
* @param string $theme Use dark or light theme
* @param string $https Use HTTPS for links
* @param string $dynamic Show dynamic output
* @param string $search Perform a search
* @param string $user Look up user videos
* @param string $modest Modest browsing
* @param string $playsinline Playsinline on iOS
* @param string $html5 Force HTML5
* @return string Code output
*/
function vye_generate_youtube_code($id = '', $width = '', $height = '', $fullscreen = '', $related = '', $autoplay = '', $loop = '', $start = '', $info = '', $annotation = '', $cc = '', $style = '', $stop = '', $disablekb = '', $ratio = '', $autohide = '', $controls = '', $profile = '', $list_style = '', $template = '', $color = '', $theme = '', $https = '', $dynamic = '', $search = '', $user = '', $modest = '', $playsinline = '', $html5 = '')
{
$start_time = microtime(true);
// Ensure an ID is passed
if ($id == '') {
return vye_error(__('No video/playlist ID has been supplied', 'youtube-embed'));
}
$newline = "\n";
$tab = "\t";
// Get general options
$general = vye_set_general_defaults();
// Find the profile, if one is specified
$profile = vye_validate_profile($profile, $general['profile_no']);
// Get default values if no values are supplied
$options = vye_set_profile_defaults($profile);
// If a user look-up or search has been requested, miss out looking up list details and
// simple assign it as an IFRAME video
$playlist_ids = '';
$embed_type = '';
if ($user == 0 && $search == 0) {
// Check it's not a list
$list = vye_validate_list($id, $general['list_no']);
if (!is_array($list)) {
// Check if certain parameters are included in the URL
$width = vye_get_url_para($id, 'w', $width);
$height = vye_get_url_para($id, 'h', $height);
// Extract the ID if a full URL has been specified
$id = vye_extract_id($id);
// Check what type of video it is and whether it's valid
$embed_type = vye_validate_id($id);
// If the video is invalid, output an error
if ($embed_type == '' or strlen($embed_type) != 1) {
$result = $newline . '<!-- YouTube Embed v' . youtube_embed_version . ' -->' . $newline;
$result .= sprintf(__('The YouTube ID of %s is invalid.', 'youtube-embed'), $id) . $newline . '<!-- End of YouTube Embed code -->' . $newline;
return $result;
}
} else {
$return = '';
$embed_type = 'v';
// Randomize the video
if ($list_style == 'random') {
shuffle($list);
}
// Extract one video randomly
if ($list_style == 'single') {
$id = $list[array_rand($list, 1)];
// Build the playlist
} else {
$id = $list[0];
// Build the playlist
if (count($list) > 1) {
$loop = 1;
while ($loop < count($list)) {
if ($playlist_ids != '') {
$playlist_ids .= ',';
}
$list_id = vye_extract_id($list[$loop]);
$playlist_ids .= $list_id;
$loop++;
}
}
}
}
}
$metadata = $general['metadata'];
// Correct the ID if a playlist
if (strtolower(substr($id, 0, 2)) == 'pl') {
$id = substr($id, 2);
}
// Work out correct protocol to use - HTTP or HTTPS
if ($https == '') {
$https = $options['https'];
}
if ($https == 1) {
$https = 's';
} else {
$https = '';
}
// If this is a feed then display a thumbnail and/or text link to the original video
if (is_feed()) {
$result = '';
if ($playlist_ids != '') {
$result .= '<p>' . __('A video list cannot be viewed within this feed - please view the original content', 'youtube-embed') . '.</p>' . $newline;
} else {
$youtube_url = 'http' . $https . '://www.youtube.com/watch?' . $embed_type . '=' . $id;
if ($embed_type == 'v' && $general['feed'] != 't') {
$result .= '<p><a href="' . $youtube_url . '"><img src="http://img.youtube.com/vi/' . $id . '/' . $general['thumbnail'] . '.jpg"></a></p>' . $newline;
}
if ($general['feed'] != 'v' or $embed_type != 'v') {
$result .= '<p><a href="' . $youtube_url . '">' . __('Click here to view the video on YouTube', 'youtube-embed') . '</a>.</p>' . $newline;
}
}
return $result;
}
// If a dynamic size has been requested, check whether the width should be fixed
$fixed = 0;
if ($dynamic == '') {
$dynamic = $options['dynamic'];
$fixed = $options['fixed'];
} else {
if ($width != '') {
$fixed = 1;
}
}
// Only set width and height from defaults if both are missing
if ($width == '' && $height == '') {
$width = $options['width'];
$height = $options['height'];
}
// If controls parameter is not numeric then convert to 0 or 1
// This is to maintain backwards compatibility after version 2.6
if (!is_numeric($controls) && $controls != '') {
$controls = vye_convert($controls);
}
// If values have not been pressed, use the default values
if ($fullscreen == '') {
$fullscreen = $options['fullscreen'];
}
if ($related == '') {
$related = $options['related'];
}
if ($autoplay == '') {
$autoplay = $options['autoplay'];
}
if ($loop == '') {
$loop = $options['loop'];
}
if ($info == '') {
$info = $options['info'];
}
if ($annotation == '') {
$annotation = $options['annotation'];
}
if ($cc == '') {
$cc = $options['cc'];
}
if ($disablekb == '') {
$disablekb = $options['disablekb'];
}
if ($autohide == '') {
$autohide = $options['autohide'];
}
if ($controls == '') {
$controls = $options['controls'];
}
if ($style == '') {
$style = $options['style'];
}
if ($color == '') {
$color = $options['color'];
}
if ($theme == '') {
$theme = $options['theme'];
}
if ($modest == '') {
$modest = $options['modest'];
}
if ($playsinline == '') {
$playsinline = $options['playsinline'];
}
if ($html5 == '') {
$html5 = $options['html5'];
}
$language = $general['language'];
$debug = $general['debug'];
$wmode = $options['wmode'];
if ($theme == '') {
$theme = $options['theme'];
}
// Build the required template
if ($template == '') {
$template = $options['template'];
} else {
$template = vye_decode($template);
}
if (strpos($template, '%video%') === false) {
$template = '%video%';
}
// If looping and no playlist has been generated, add the current ID
// This is a workaround for the AS3 player which won't otherwise loop
if ($loop == 1 && $embed_type != 'p' && $playlist_ids == '') {
$playlist_ids = $id;
}
// Set parameters without default values
if ($start == '') {
$start = '0';
}
if ($stop == '') {
$stop = '0';
}
// If height or width is missing, calculate missing parameter using ratio
if (($width == '' or $height == '') && ($width != '' or $height != '')) {
$ratio_to_use = '';
if ($ratio != '') {
// Extract the ratio from the provided string
$pos = strpos($ratio, ':', 0);
if ($pos !== false) {
$ratio_l = substr($ratio, 0, $pos);
$ratio_r = substr($ratio, $pos + 1);
if (is_numeric($ratio_l) && is_numeric($ratio_r)) {
$ratio_to_use = $ratio_l / $ratio_r;
}
}
}
// If no, or invalid, ratio supplied, calculate from the default video dimensions
if ($ratio_to_use == '') {
$ratio_to_use = $options['width'] / $options['height'];
}
// Complete the missing width or height using the ratio
if ($width == '') {
$width = round($height * $ratio_to_use, 0);
}
if ($height == '') {
$height = round($width / $ratio_to_use, 0);
}
}
// Set Frameborder output
$frameborder = '';
$amp = '&';
if (isset($general['frameborder'])) {
if ($general['frameborder'] != 1) {
$frameborder = 'frameborder="0" ';
} else {
$amp = '&';
}
}
// Set up embed types
$class = 'youtube-player';
$paras = '';
// Generate parameters to add to URL
if ($modest == 1) {
$paras .= $amp . 'modestbranding=1';
}
if ($fullscreen != 1) {
$paras .= $amp . 'fs=0';
}
if ($related != 1) {
$paras .= $amp . 'rel=0';
}
if ($autoplay == 1) {
$paras .= $amp . 'autoplay=1';
}
if ($loop == 1) {
$paras .= $amp . 'loop=1';
}
if ($info != 1) {
$paras .= $amp . 'showinfo=0';
}
if ($annotation != 1) {
$paras .= $amp . 'iv_load_policy=3';
}
if ($cc != '') {
$paras .= $amp . 'cc_load_policy=' . $cc;
}
if ($disablekb == 1) {
$paras .= $amp . 'disablekb=1';
}
if ($autohide != 2) {
$paras .= $amp . 'autohide=' . $autohide;
}
if ($controls != 1) {
$paras .= $amp . 'controls=' . $controls;
}
if (strtolower($color) != 'red') {
$paras .= $amp . 'color=' . strtolower($color);
}
if (strtolower($theme) != 'dark') {
$paras .= $amp . 'theme=' . strtolower($theme);
}
if ($wmode != 'window') {
$paras .= $amp . 'wmode=' . $wmode;
}
if ($playsinline == 1) {
$paras .= $amp . 'playsinline=1';
}
if ($html5 == 1) {
$paras .= $amp . 'html5=1';
}
if ($language != '') {
$paras .= $amp . 'hl=' . $language;
}
// If not a playlist, add the playlist parameter
if ($playlist_ids != '' && $playlist_ids != $id) {
$paras .= $amp . 'playlist=' . $playlist_ids;
}
// Add start & stop parameters
if ($start != 0) {
$paras .= $amp . 'start=' . $start;
}
if ($stop != 0) {
$paras .= $amp . 'end=' . $stop;
}
// Generate DIVs to wrap around video
$ttab = $tab;
$result = '<div class="youtube-embed';
if ($dynamic == 1) {
$result .= ' ye-container';
}
$result .= '"';
if ($metadata != 0) {
$result .= ' itemprop="video" itemscope itemtype="http://schema.org/VideoObject"';
}
$result .= '>' . $newline;
if ($dynamic == 1 && $fixed == 1) {
$result = '<div style="width: ' . $width . 'px; max-width: 100%">' . $newline . $tab . $result;
$ttab .= $tab;
}
// Add Metadata
if ($metadata != 0) {
$title = get_the_title();
$result .= $ttab . '<meta itemprop="url" content="http' . $https . '://www.youtube.com/' . $embed_type . '/' . $id . '" />' . $newline;
$result .= $ttab . '<meta itemprop="name" content="' . $title . '" />' . $newline;
$result .= $ttab . '<meta itemprop="description" content="' . $title . '" />' . $newline;
$result .= $ttab . '<meta itemprop="uploadDate" content="' . get_the_date('c') . '" />' . $newline;
$result .= $ttab . '<meta itemprop="thumbnailUrl" content="http://i.ytimg.com/vi/' . $id . '/hqdefault.jpg" />' . $newline;
$result .= $ttab . '<meta itemprop="embedUrl" content="http' . $https . '://www.youtube.com/embed/' . $id . '" />' . $newline;
$result .= $ttab . '<meta itemprop="height" content="' . $height . '" />' . $newline;
$result .= $ttab . '<meta itemprop="width" content="' . $width . '" />' . $newline;
}
// Work out, depending on privacy settings, the main address to use
$privacy = $general['privacy'];
if ($privacy == 2) {
$do_not_track = vye_do_not_track();
if ($do_not_track) {
$privacy = 1;
} else {
$privacy = 0;
}
}
if ($privacy == 1) {
$url_privacy = 'youtube-nocookie.com';
} else {
$url_privacy = 'youtube.com';
}
// Generate the first part of the embed URL along with the ID section
$embed_url = 'http' . $https . '://www.' . $url_privacy . '/embed';
$id_paras = '/' . $id;
// If a playlist, user or download build the ID appropriately
if ($embed_type == 'p' or $user != 0 or $search != 0) {
$list_type = '';
if ($embed_type == 'p') {
$list_type = 'playlist';
}
if ($user != 0) {
$list_type = 'user_uploads';
}
if ($search != 0) {
$list_type = 'search';
$id = urlencode($id);
}
$id_paras = '?listType=' . $list_type . '&list=';
if ($embed_type == 'p' && strtolower(substr($id, 0, 2)) != 'pl') {
$id_paras .= 'PL';
}
$id_paras .= $id;
}
// Combine URL parts together
$embed_url .= $id_paras;
if (!strpos($embed_url, '?') && $paras != '') {
$paras = '?' . substr($paras, 1);
}
$embed_url .= $paras;
// Check length of URL to ensure it doesn't exceed 2000 characters
if (strlen($embed_url) > 2000) {
return vye_error(__('The maximum URL length has been exceeded. Please reduce your parameter and/or playlist.', 'youtube-embed'));
}
// Add IFRAME embed code
if ($embed_type == "p") {
$playlist_para = "p/";
} else {
$playlist_para = '';
}
$result .= $ttab . '<iframe ' . $frameborder . 'style="border: 0;' . $style . '" class="' . $class . '" width="' . $width . '" height="' . $height . '" src="' . $embed_url . '"';
if ($fullscreen == 1) {
$result .= ' allowfullscreen';
}
$result .= ' ></iframe>' . $newline;
// Now apply the template to the result
$end_tag = '';
if ($dynamic == 1 && $fixed == 1) {
$end_tag .= $tab . '</div>' . $newline . '</div>' . $newline;
} else {
$end_tag .= '</div>' . $newline;
}
$result = str_replace('%video%', $result . $end_tag, $template);
// Add the download link, if required
if ($options['download'] == 1 && $embed_type == 'v') {
$result .= '<div style="' . $options['download_style'] . '" class="aye_download">' . $newline . $tab . '<a href="' . vye_generate_download_code($id) . "\">" . $options['download_text'] . '</a>' . $newline . '</div>' . $newline;
}
// Now add a commented header and trailer
if ($debug == 1) {
$result = '<!-- YouTube Embed v' . youtube_embed_version . ' -->' . $newline . $result;
$runtime = round(microtime(true) - $start_time, 5);
$result .= '<!-- End of YouTube Embed code. Generated in ' . $runtime . ' seconds -->' . $newline;
}
return $newline . $result;
}
$options['height'] = 27 + round($options['width'] / 16 * 9, 0);
}
if ($options['width'] == '' && $options['height'] != '') {
$options['width'] = round($options['height'] / 9 * 16, 0);
}
if ($options['width'] != '' && $options['height'] == '') {
$options['height'] = 27 + round($options['width'] / 16 * 9, 0);
}
update_option('youtube_embed_profile' . $profile_no, $options);
$updated = true;
} else {
$default_size = '';
$updated = false;
}
// Fetch options into an array
$options = vye_set_profile_defaults($profile_no);
$general = vye_set_general_defaults();
// Get number of lists in use
$loop = 1;
$max_list = 1;
while ($loop <= $general['list_no']) {
$list = get_option('youtube_embed_profile' . $loop);
if ($list == '') {
$max_list = $loop;
$loop = $general['list_no'];
}
$loop++;
}
// Output headings
?>