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<?php
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/**
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* @file
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* Functions related to the WYSIWYG editor and the media input filter.
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*/
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define('MEDIA_WYSIWYG_TOKEN_REGEX', '/\[\[.+?"type":"media".+?\]\]/s');
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/**
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* Filter callback for media markup filter.
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*
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* @TODO check for security probably pass text through filter_xss
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*/
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function media_wysiwyg_filter($text, $filter = NULL, $format = NULL, $langcode = NULL, $cache = NULL, $cache_id = NULL) {
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$replacements = array();
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$patterns = array();
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$rendered_text = $text;
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$count = 1;
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preg_match_all(MEDIA_WYSIWYG_TOKEN_REGEX, $text, $matches);
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if (!empty($matches[0])) {
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foreach ($matches[0] as $match) {
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$replacement = media_wysiwyg_token_to_markup(array($match), FALSE, $langcode);
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$rendered_text = str_replace($match, $replacement, $rendered_text, $count);
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}
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}
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return $rendered_text;
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}
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/**
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* Filter callback to configure media_filter_paragraph_fix filter.
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*/
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function _media_filter_paragraph_fix_settings($form, &$form_state, $filter, $format, $defaults) {
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$filter->settings += $defaults;
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$settings['replace'] = array(
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'#type' => 'checkbox',
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'#title' => t('Replace paragraph tags with DIV.media-p tags'),
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'#default_value' => $filter->settings['replace'],
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'#description' => t('Default behaviour is to strip out parent P tags of media elements rather than replacing these.'),
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);
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return $settings;
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}
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/**
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* Filter callback to remove paragraph tags surrounding embedded media.
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*/
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function media_wysiwyg_filter_paragraph_fix($text, $filter) {
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$html_dom = filter_dom_load($text);
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// Store Nodes to remove to avoid inferferring with the NodeList iteration.
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$dom_nodes_to_remove = array();
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foreach ($html_dom->getElementsByTagName('p') as $paragraph) {
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if (preg_match(MEDIA_WYSIWYG_TOKEN_REGEX, $paragraph->nodeValue)) {
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if (empty($filter->settings['replace'])) {
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$sibling = $paragraph->firstChild;
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do {
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$next = $sibling->nextSibling;
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$paragraph->parentNode->insertBefore($sibling, $paragraph);
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} while ($sibling = $next);
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$dom_nodes_to_remove[] = $paragraph;
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}
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else {
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// Clone the P node into a DIV node.
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$div = $html_dom->createElement('div');
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$sibling = $paragraph->firstChild;
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do {
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$next = $sibling->nextSibling;
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$div->appendChild($sibling);
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} while ($sibling = $next);
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$classes = array('media-p');
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if ($paragraph->hasAttributes()) {
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foreach ($paragraph->attributes as $attr) {
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$name = $attr->nodeName;
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$value = $attr->nodeValue;
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if (strtolower($name) == 'class') {
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$classes[] = $value;
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}
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else {
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// Supressing errors with ID attribute or duplicate properties.
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@$div->setAttribute($name, $value);
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}
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}
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}
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$div->setAttribute('class', implode(' ', $classes));
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$paragraph->parentNode->insertBefore($div, $paragraph);
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$dom_nodes_to_remove[] = $paragraph;
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}
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}
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}
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foreach ($dom_nodes_to_remove as $paragraph) {
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$paragraph->parentNode->removeChild($paragraph);
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}
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$text = filter_dom_serialize($html_dom);
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return $text;
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}
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/**
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* Parses the contents of a CSS declaration block.
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*
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* @param string $declarations
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* One or more CSS declarations delimited by a semicolon. The same as a CSS
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* declaration block (see http://www.w3.org/TR/CSS21/syndata.html#rule-sets),
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* but without the opening and closing curly braces. Also the same as the
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* value of an inline HTML style attribute.
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*
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* @return array
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* A keyed array. The keys are CSS property names, and the values are CSS
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* property values.
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*/
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function media_wysiwyg_parse_css_declarations($declarations) {
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$properties = array();
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foreach (array_map('trim', explode(";", $declarations)) as $declaration) {
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if ($declaration != '') {
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list($name, $value) = array_map('trim', explode(':', $declaration, 2));
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$properties[strtolower($name)] = $value;
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}
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}
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return $properties;
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}
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/**
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* Replace callback to convert a media file tag into HTML markup.
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*
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* @param string $match
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* Takes a match of tag code
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* @param bool $wysiwyg
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* Set to TRUE if called from within the WYSIWYG text area editor.
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*
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* @return string
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* The HTML markup representation of the tag, or an empty string on failure.
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*
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* @see media_wysiwyg_get_file_without_label()
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* @see hook_media_wysiwyg_token_to_markup_alter()
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*/
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function media_wysiwyg_token_to_markup($match, $wysiwyg = FALSE, $langcode = NULL) {
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static $recursion_stop;
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$settings = array();
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$match = str_replace("[[", "", $match);
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$match = str_replace("]]", "", $match);
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$tag = $match[0];
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try {
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if (!is_string($tag)) {
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throw new Exception('Unable to find matching tag');
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}
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$tag_info = drupal_json_decode($tag);
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if (!isset($tag_info['fid'])) {
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throw new Exception('No file Id');
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}
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// Ensure the 'link_text' key is always defined.
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if (!isset($tag_info['link_text'])) {
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$tag_info['link_text'] = NULL;
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}
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// Ensure a valid view mode is being requested.
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if (!isset($tag_info['view_mode'])) {
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$tag_info['view_mode'] = variable_get('media_wysiwyg_wysiwyg_default_view_mode', 'full');
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}
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elseif ($tag_info['view_mode'] != 'default') {
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$file_entity_info = entity_get_info('file');
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if (!in_array($tag_info['view_mode'], array_keys($file_entity_info['view modes']))) {
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// Media 1.x defined some old view modes that have been superseded by
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// more semantically named ones in File Entity. The media_update_7203()
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// function updates field settings that reference the old view modes,
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// but it's impractical to update all text content, so adjust
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// accordingly here.
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static $view_mode_updates = array(
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'media_preview' => 'preview',
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'media_small' => 'teaser',
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'media_large' => 'full',
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);
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if (isset($view_mode_updates[$tag_info['view_mode']])) {
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$tag_info['view_mode'] = $view_mode_updates[$tag_info['view_mode']];
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}
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else {
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throw new Exception('Invalid view mode');
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}
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}
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}
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$file = file_load($tag_info['fid']);
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if (!$file) {
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throw new Exception('Could not load media object');
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}
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// Check if we've got a recursion. Happens because a file_load() may
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// triggers file_entity_is_page() which then again triggers a file load.
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if (isset($recursion_stop[$file->fid])) {
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return '';
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}
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$recursion_stop[$file->fid] = TRUE;
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$tag_info['file'] = $file;
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// The class attributes is a string, but drupal requires it to be
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// an array, so we fix it here.
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if (!empty($tag_info['attributes']['class'])) {
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$tag_info['attributes']['class'] = explode(" ", $tag_info['attributes']['class']);
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}
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// Grab the potentially overridden fields from the file.
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$fields = media_wysiwyg_filter_field_parser($tag_info);
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foreach ($fields as $key => $value) {
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$file->{$key} = $value;
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}
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if (array_key_exists('attributes', $tag_info) && is_array($tag_info['attributes'])) {
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$attributes = $tag_info['attributes'];
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}
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else {
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$attributes = array();
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}
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$attribute_whitelist = media_wysiwyg_allowed_attributes();
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$settings['attributes'] = array_intersect_key($attributes, array_flip($attribute_whitelist));
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$settings['fields'] = $fields;
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if (isset($tag_info['fields']['external_url'])) {
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$settings['fields']['external_url'] = $tag_info['fields']['external_url'];
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}
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if (!empty($tag_info['attributes']) && is_array($tag_info['attributes'])) {
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$settings['attributes'] = array_intersect_key($tag_info['attributes'], array_flip($attribute_whitelist));
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// Many media formatters will want to apply width and height independently
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// of the style attribute or the corresponding HTML attributes, so pull
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// these two out into top-level settings. Different WYSIWYG editors have
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// different behavior with respect to whether they store user-specified
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// dimensions in the HTML attributes or the style attribute - check both.
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// Per http://www.w3.org/TR/html5/the-map-element.html#attr-dim-width, the
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// HTML attributes are merely hints: CSS takes precedence.
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if (isset($settings['attributes']['style'])) {
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$css_properties = media_wysiwyg_parse_css_declarations($settings['attributes']['style']);
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foreach (array('width', 'height') as $dimension) {
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if (isset($css_properties[$dimension]) && substr($css_properties[$dimension], -2) == 'px') {
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$settings[$dimension] = substr($css_properties[$dimension], 0, -2);
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}
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elseif (isset($settings['attributes'][$dimension])) {
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$settings[$dimension] = $settings['attributes'][$dimension];
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}
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}
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}
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foreach (array('title', 'alt') as $field_type) {
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if (isset($settings['attributes'][$field_type])) {
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$settings['attributes'][$field_type] = decode_entities($settings['attributes'][$field_type]);
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}
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}
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}
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// Update file metadata from the potentially overridden tag info.
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foreach (array('width', 'height') as $dimension) {
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if (isset($settings['attributes'][$dimension])) {
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$file->metadata[$dimension] = $settings['attributes'][$dimension];
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}
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}
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}
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catch (Exception $e) {
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watchdog('media', 'Unable to render media from %tag. Error: %error', array('%tag' => $tag, '%error' => $e->getMessage()));
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return '';
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}
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259
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260
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// Remove any alignment classes from $settings, because it will be added later
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261
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// in this function to the media's wrapper, and we don't want to confuse CSS
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// by having it on both the wrapper and the element.
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if (isset($settings['attributes']['class'])) {
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264
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$alignment_classes = array(
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265
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'media-wysiwyg-align-left',
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'media-wysiwyg-align-right',
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267
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'media-wysiwyg-align-center',
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);
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269
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$settings['attributes']['class'] = array_diff($settings['attributes']['class'], $alignment_classes);
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270
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}
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271
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272
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// If the tag has link text stored with it, override the filename with it for
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273
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// the rest of this function, so that if the file is themed as a link, the
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274
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// desired text will be used (see, for example, theme_file_link()).
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275
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// @todo: Try to find a less hacky way to do this.
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276
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if (isset($tag_info['link_text']) && variable_get('media_wysiwyg_use_link_text_for_filename', 1)) {
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277
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// The link text will have characters such as "&" encoded for HTML, but the
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// filename itself needs the raw value when it is used to build the link,
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279
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// in order to avoid double encoding.
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280
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$file->filename = decode_entities($tag_info['link_text']);
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281
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}
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282
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283
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if ($wysiwyg) {
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284
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$settings['wysiwyg'] = $wysiwyg;
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285
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286
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// Render file in WYSIWYG using appropriate view mode.
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287
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$view_mode = db_query('SELECT view_mode FROM {media_view_mode_wysiwyg} WHERE type = :type', array(
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288
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':type' => $file->type,
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))
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290
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->fetchField();
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291
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if (empty($view_mode)) {
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292
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$view_mode = $tag_info['view_mode'];
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293
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}
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294
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295
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// If sending markup to a WYSIWYG, we need to pass the file information so
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296
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// that an inline macro can be generated when the WYSIWYG is detached.
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297
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// The WYSIWYG plugin is expecting this information in the
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298
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// Drupal.settings.mediaDataMap variable.
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299
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$element = media_wysiwyg_get_file_without_label($file, $view_mode, $settings, $langcode);
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300
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$data = array(
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301
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'type' => 'media',
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302
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'fid' => $file->fid,
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303
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'view_mode' => $tag_info['view_mode'],
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304
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'link_text' => $tag_info['link_text'],
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305
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);
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306
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drupal_add_js(array('mediaDataMap' => array($file->fid => $data)), 'setting');
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307
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$element['#attributes']['data-fid'] = $file->fid;
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308
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$element['#attributes']['data-media-element'] = '1';
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309
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$element['#attributes']['class'][] = 'media-element';
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310
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}
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311
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else {
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312
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// Display the field elements.
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313
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$element = array();
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314
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// Render the file entity, for sites using the file_entity rendering method.
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315
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if (variable_get('media_wysiwyg_default_render', 'file_entity') == 'file_entity') {
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316
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$element['content'] = file_view($file, $tag_info['view_mode']);
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317
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}
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318
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$element['content']['file'] = media_wysiwyg_get_file_without_label($file, $tag_info['view_mode'], $settings, $langcode);
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319
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// Overwrite or set the file #alt attribute if it has been set in this
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320
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// instance.
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321
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if (!empty($element['content']['file']['#attributes']['alt'])) {
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322
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$element['content']['file']['#alt'] = $element['content']['file']['#attributes']['alt'];
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323
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}
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324
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// Overwrite or set the file #title attribute if it has been set in this
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325
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// instance.
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326
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if (!empty($element['content']['file']['#attributes']['title'])) {
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327
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$element['content']['file']['#title'] = $element['content']['file']['#attributes']['title'];
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328
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}
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329
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// For sites using the legacy field_attach rendering method, attach fields.
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330
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if (variable_get('media_wysiwyg_default_render', 'file_entity') == 'field_attach') {
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331
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field_attach_prepare_view('file', array($file->fid => $file), $tag_info['view_mode'], $langcode);
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332
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entity_prepare_view('file', array($file->fid => $file), $langcode);
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333
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$element['content'] += field_attach_view('file', $file, $tag_info['view_mode'], $langcode);
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334
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}
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335
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if (count(element_children($element['content'])) > 1) {
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336
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// Add surrounding divs to group them together.
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337
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// We don't want divs when there are no additional fields to allow files
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338
|
// to display inline with text, without breaking p tags.
|
|
339
|
$element['content']['#type'] = 'container';
|
|
340
|
$element['content']['#attributes']['class'] = array(
|
|
341
|
'media',
|
|
342
|
'media-element-container',
|
|
343
|
'media-' . $element['content']['file']['#view_mode'],
|
|
344
|
);
|
|
345
|
}
|
|
346
|
|
|
347
|
// Conditionally add a pre-render if the media filter output is be cached.
|
|
348
|
$filters = filter_get_filters();
|
|
349
|
if (!isset($filters['media_filter']['cache']) || $filters['media_filter']['cache']) {
|
|
350
|
$element['#pre_render'][] = 'media_wysiwyg_pre_render_cached_filter';
|
|
351
|
}
|
|
352
|
}
|
|
353
|
if (!empty($element['content']) && !empty($tag_info['fields']['alignment'])) {
|
|
354
|
// Set a CSS class if an alignment has been specified and is correct.
|
|
355
|
$alignment = $tag_info['fields']['alignment'];
|
|
356
|
if (in_array($alignment, array('left', 'right', 'center'))) {
|
|
357
|
$alignment_class = 'media-wysiwyg-align-' . $alignment;
|
|
358
|
$element['content']['#attributes']['class'][] = $alignment_class;
|
|
359
|
}
|
|
360
|
}
|
|
361
|
drupal_alter('media_wysiwyg_token_to_markup', $element, $tag_info, $settings, $langcode);
|
|
362
|
$output = drupal_render($element);
|
|
363
|
unset($recursion_stop[$file->fid]);
|
|
364
|
return $output;
|
|
365
|
}
|
|
366
|
|
|
367
|
/**
|
|
368
|
* Parse the field array from the collapsed AJAX string.
|
|
369
|
*/
|
|
370
|
function media_wysiwyg_filter_field_parser($tag_info) {
|
|
371
|
$fields = array();
|
|
372
|
if (isset($tag_info['fields'])) {
|
|
373
|
// Field names that end in [format] are associated with long-text fields that may have HTML Entities.
|
|
374
|
// Those values will need to be URLDecoded as well as HTMLDecoded.
|
|
375
|
$url_encoded_fields = array();
|
|
376
|
foreach($tag_info['fields'] as $field_name => $field_value) {
|
|
377
|
if (preg_match('/\[format\]$/', $field_name) > 0){
|
|
378
|
$url_encoded_fields[] = preg_replace('/\[format\]$/', '[value]', $field_name);
|
|
379
|
}
|
|
380
|
}
|
|
381
|
|
|
382
|
foreach($tag_info['fields'] as $field_name => $field_value) {
|
|
383
|
if (strpos($field_name, 'field_') === 0) {
|
|
384
|
$parsed_field = explode('[', str_replace(']', '', $field_name));
|
|
385
|
$ref = &$fields;
|
|
386
|
|
|
387
|
// Certain types of fields, because of differences in markup, end up
|
|
388
|
// here with incomplete arrays. Make a best effort to support as many
|
|
389
|
// types of fields as possible.
|
|
390
|
// Single-value select lists show up here with only 2 array items.
|
|
391
|
if (count($parsed_field) == 2) {
|
|
392
|
$info = field_info_field($parsed_field[0]);
|
|
393
|
if ($info && !empty($info['columns'])) {
|
|
394
|
// Assume single-value.
|
|
395
|
$parsed_field[] = 0;
|
|
396
|
// Next tack on the column for this field.
|
|
397
|
$parsed_field[] = key($info['columns']);
|
|
398
|
}
|
|
399
|
}
|
|
400
|
// Multi-value select lists show up here with 3 array items.
|
|
401
|
elseif (count($parsed_field) == 3 && (empty($parsed_field[2]) || is_numeric($parsed_field[2]))) {
|
|
402
|
$info = field_info_field($parsed_field[0]);
|
|
403
|
// They just need the value column.
|
|
404
|
$parsed_field[3] = key($info['columns']);
|
|
405
|
}
|
|
406
|
|
|
407
|
// Each key of the field needs to be the child of the previous key.
|
|
408
|
foreach ($parsed_field as $key) {
|
|
409
|
if (!isset($ref[$key])) {
|
|
410
|
$ref[$key] = array();
|
|
411
|
}
|
|
412
|
$ref = &$ref[$key];
|
|
413
|
}
|
|
414
|
|
|
415
|
// The value should be set at the deepest level.
|
|
416
|
if (in_array($field_name, $url_encoded_fields)){
|
|
417
|
// Fields that use rich-text markup will be urlencoded.
|
|
418
|
$ref = urldecode(decode_entities($field_value));
|
|
419
|
}
|
|
420
|
else {
|
|
421
|
// Only entities need to be decoded.
|
|
422
|
$ref = decode_entities($field_value);
|
|
423
|
}
|
|
424
|
}
|
|
425
|
}
|
|
426
|
}
|
|
427
|
return $fields;
|
|
428
|
}
|
|
429
|
|
|
430
|
/**
|
|
431
|
* Creates map of inline media tags.
|
|
432
|
*
|
|
433
|
* Generates an array of [inline tags] => <html> to be used in filter
|
|
434
|
* replacement and to add the mapping to JS.
|
|
435
|
*
|
|
436
|
* @param string $text
|
|
437
|
* The String containing text and html markup of textarea
|
|
438
|
*
|
|
439
|
* @return array
|
|
440
|
* An associative array with tag code as key and html markup as the value.
|
|
441
|
*
|
|
442
|
* @see media_process_form()
|
|
443
|
* @see media_token_to_markup()
|
|
444
|
*/
|
|
445
|
function _media_wysiwyg_generate_tagMap($text) {
|
|
446
|
// Making $tagmap static as this function is called many times and
|
|
447
|
// adds duplicate markup for each tag code in Drupal.settings JS,
|
|
448
|
// so in media_process_form it adds something like tagCode:<markup>,
|
|
449
|
// <markup> and when we replace in attach see two duplicate images
|
|
450
|
// for one tagCode. Making static would make function remember value
|
|
451
|
// between function calls. Since media_process_form is multiple times
|
|
452
|
// with same form, this function is also called multiple times.
|
|
453
|
static $tagmap = array();
|
|
454
|
preg_match_all("/\[\[.*?\]\]/s", $text, $matches, PREG_SET_ORDER);
|
|
455
|
foreach ($matches as $match) {
|
|
456
|
// We see if tagContent is already in $tagMap, if not we add it
|
|
457
|
// to $tagmap. If we return an empty array, we break embeddings of the same
|
|
458
|
// media multiple times.
|
|
459
|
if (empty($tagmap[$match[0]])) {
|
|
460
|
// @TODO: Total HACK, but better than nothing.
|
|
461
|
// We should find a better way of cleaning this up.
|
|
462
|
if ($markup_for_media = media_wysiwyg_token_to_markup($match, TRUE)) {
|
|
463
|
$tagmap[$match[0]] = $markup_for_media;
|
|
464
|
}
|
|
465
|
else {
|
|
466
|
$missing = file_create_url(drupal_get_path('module', 'media') . '/images/icons/default/image-x-generic.png');
|
|
467
|
$tagmap[$match[0]] = '<div><img src="' . $missing . '" width="100px" height="100px"/></div>';
|
|
468
|
}
|
|
469
|
}
|
|
470
|
}
|
|
471
|
return $tagmap;
|
|
472
|
}
|
|
473
|
|
|
474
|
/**
|
|
475
|
* Return a list of view modes allowed for a file embedded in the WYSIWYG.
|
|
476
|
*
|
|
477
|
* @param object $file
|
|
478
|
* A file entity.
|
|
479
|
*
|
|
480
|
* @return array
|
|
481
|
* An array of view modes that can be used on the file when embedded in the
|
|
482
|
* WYSIWYG.
|
|
483
|
*
|
|
484
|
* @deprecated
|
|
485
|
*/
|
|
486
|
function media_wysiwyg_get_wysiwyg_allowed_view_modes($file) {
|
|
487
|
$enabled_view_modes = &drupal_static(__FUNCTION__, array());
|
|
488
|
|
|
489
|
// @todo Add more caching for this.
|
|
490
|
if (!isset($enabled_view_modes[$file->type])) {
|
|
491
|
$enabled_view_modes[$file->type] = array();
|
|
492
|
|
|
493
|
// Add the default view mode by default.
|
|
494
|
$enabled_view_modes[$file->type]['default'] = array('label' => t('Default'), 'custom settings' => TRUE);
|
|
495
|
|
|
496
|
$entity_info = entity_get_info('file');
|
|
497
|
$view_mode_settings = field_view_mode_settings('file', $file->type);
|
|
498
|
foreach ($entity_info['view modes'] as $view_mode => $view_mode_info) {
|
|
499
|
// Do not show view modes that don't have their own settings and will
|
|
500
|
// only fall back to the default view mode.
|
|
501
|
if (empty($view_mode_settings[$view_mode]['custom_settings'])) {
|
|
502
|
continue;
|
|
503
|
}
|
|
504
|
|
|
505
|
// Don't present the user with an option to choose a view mode in which
|
|
506
|
// the file is hidden.
|
|
507
|
$extra_fields = field_extra_fields_get_display('file', $file->type, $view_mode);
|
|
508
|
if (empty($extra_fields['file']['visible'])) {
|
|
509
|
continue;
|
|
510
|
}
|
|
511
|
|
|
512
|
// Add the view mode to the list of enabled view modes.
|
|
513
|
$enabled_view_modes[$file->type][$view_mode] = $view_mode_info;
|
|
514
|
}
|
|
515
|
}
|
|
516
|
|
|
517
|
$view_modes = $enabled_view_modes[$file->type];
|
|
518
|
media_wysiwyg_wysiwyg_allowed_view_modes_restrict($view_modes, $file);
|
|
519
|
drupal_alter('media_wysiwyg_allowed_view_modes', $view_modes, $file);
|
|
520
|
// Invoke the deprecated/misspelled alter hook as well.
|
|
521
|
drupal_alter('media_wysiwyg_wysiwyg_allowed_view_modes', $view_modes, $file);
|
|
522
|
return $view_modes;
|
|
523
|
}
|
|
524
|
/**
|
|
525
|
* Do not show restricted view modes.
|
|
526
|
*/
|
|
527
|
function media_wysiwyg_wysiwyg_allowed_view_modes_restrict(&$view_modes, &$file) {
|
|
528
|
$restricted_view_modes = db_query('SELECT display FROM {media_restrict_wysiwyg} WHERE type = :type', array(':type' => $file->type))->fetchCol();
|
|
529
|
foreach ($restricted_view_modes as $restricted_view_mode) {
|
|
530
|
if (array_key_exists($restricted_view_mode, $view_modes)) {
|
|
531
|
unset($view_modes[$restricted_view_mode]);
|
|
532
|
}
|
|
533
|
}
|
|
534
|
}
|
|
535
|
/**
|
|
536
|
* #pre_render callback: Modify the element if the render cache is filtered.
|
|
537
|
*/
|
|
538
|
function media_wysiwyg_pre_render_cached_filter($element) {
|
|
539
|
// Remove contextual links since they are not compatible with cached filtered
|
|
540
|
// text.
|
|
541
|
if (isset($element['content']['#contextual_links'])) {
|
|
542
|
unset($element['content']['#contextual_links']);
|
|
543
|
}
|
|
544
|
|
|
545
|
return $element;
|
|
546
|
}
|
