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<?php
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/**
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* @file media_youtube/themes/media_youtube.theme.inc
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*
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* Theme and preprocess functions for Media: YouTube.
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*/
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/**
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* Preprocess function for theme('media_youtube_video').
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*/
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function media_youtube_preprocess_media_youtube_video(&$variables) {
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// Build the URI.
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$wrapper = file_stream_wrapper_get_instance_by_uri($variables['uri']);
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$parts = $wrapper->get_parameters();
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$variables['video_id'] = check_plain($parts['v']);
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// Make the file object available.
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$file_object = file_uri_to_object($variables['uri']);
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// Parse options and build the query string. Only add the option to the query
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// array if the option value is not default. Be careful, depending on the
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// wording in media_youtube.formatters.inc, TRUE may be query=0.
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// @see https://developers.google.com/youtube/player_parameters#Parameters
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$query = array();
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// Make css z-index work with flash object. Must be the first parameter.
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$query['wmode'] = 'opaque';
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// These queries default to 0. If the option is true, set value to 1.
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foreach (array('autoplay', 'enablejsapi', 'loop', 'modestbranding') as $option) {
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if ($variables['options'][$option]) {
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$query[$option] = 1;
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}
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}
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if ($variables['options']['enablejsapi']) {
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// Add a query ID and identical html ID if js API is set.
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$query['playerapiid'] = drupal_html_id('media-youtube-' . $variables['video_id']);
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$variables['api_id_attribute'] = 'id="' . $query['playerapiid'] . '" ';
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// Add the origin for improved security
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$variables['options']['origin'] ? $query['origin'] = $variables['options']['origin'] : '';
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}
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else {
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$variables['api_id_attribute'] = NULL;
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}
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// Currently, loop only works with a playlist. Make fake playlist out of a
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// single video.
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// @see https://developers.google.com/youtube/player_parameters#loop
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if ($variables['options']['loop']) {
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$query['playlist'] = $variables['video_id'];
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}
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// These queries default to 1. If the option is false, set value to 0.
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foreach (array('rel', 'showinfo') as $option) {
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if (!$variables['options'][$option]) {
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$query[$option] = 0;
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}
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}
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// These queries default to 1. Option wording is reversed, so if the option
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// is true, set value to 0.
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// (None right now.)
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// Strings.
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if ($variables['options']['theme'] != 'dark') {
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$query['theme'] = $variables['options']['theme'];
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}
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if ($variables['options']['color'] != 'red') {
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$query['color'] = $variables['options']['color'];
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}
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if ($variables['options']['autohide'] != '2') {
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$query['autohide'] = $variables['options']['autohide'];
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}
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if ($variables['options']['captions'] > '0') {
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// Add captions parameters to the query.
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$query['cc_load_policy'] = '1';
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if ($variables['options']['captions'] > '1') {
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global $language;
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// We can specify a default language for captions.
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if ($language->language != LANGUAGE_NONE) {
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$query['cc_lang_pref'] = $language->language;
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}
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}
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}
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// Non-query options.
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if ($variables['options']['nocookie']) {
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$url_base = 'youtube-nocookie.com';
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}
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else {
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$url_base = 'youtube.com';
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}
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if ($variables['options']['protocol_specify']) {
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$protocol = $variables['options']['protocol'];
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}
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else {
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$protocol = '';
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}
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// Add some options as their own template variables.
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foreach (array('width', 'height') as $theme_var) {
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$variables[$theme_var] = $variables['options'][$theme_var];
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}
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// Do something useful with the overridden attributes from the file
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// object. We ignore alt and style for now.
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if (isset($variables['options']['attributes']['class'])) {
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if (is_array($variables['options']['attributes']['class'])) {
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$variables['classes_array'] = array_merge($variables['classes_array'], $variables['options']['attributes']['class']);
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}
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else {
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// Provide nominal support for Media 1.x.
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$variables['classes_array'][] = $variables['options']['attributes']['class'];
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}
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}
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// Add template variables for accessibility.
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$variables['title'] = check_plain($file_object->filename);
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// @TODO: Find an easy/ not too expensive way to get the YouTube description
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// to use for the alternative content.
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$variables['alternative_content'] = t('Video of @title', array('@title' => $variables['title']));
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// Build the iframe URL with options query string.
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$variables['url'] = url($protocol . '//www.' . $url_base . '/embed/' . $variables['video_id'], array('query' => $query, 'external' => TRUE));
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}
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