Club Drupal

    /**

     * Returns alt and title field attribute data from the corresponding fields.

     *

     * Specifically looks for file_entity module's file_image_alt_text and

     * file_image_title_text fields as those are by default used to store

     * override values for image alt and title attributes.

     *

     * @param options (array)

     *   Options passed through a popup form submission.

     * @param includeFieldID (bool)

     *   If set, the returned object will have extra keys with the IDs of the

     *   found fields.

     *

     * If the alt or title fields were not found, their keys will be excluded

     * from the returned array.

     *

     * @return

     *   An object with the following keys:

     *   - alt: The value of the alt field.

     *   - altField: The id of the alt field.

     *   - title: The value of the title field.

     *   - titleField: The id of the title field.

     */

    parseAttributeFields: function(options, includeFieldID) {

      var attributes = {};

      for (var field in options) {

        // If the field is set to false, use an empty string for output.

        options[field] = options[field] === false ? '' : options[field];

        //if (field.match(/^field_file_image_alt_text/)) {

        if (field.match(new RegExp('^' + Drupal.settings.media.img_alt_field))) {

          attributes.alt = options[field];

          if (includeFieldID) {

            attributes.altField = field;

          }

        }

        //if (field.match(/^field_file_image_title_text/)) {

        if (field.match(new RegExp('^' + Drupal.settings.media.img_title_field))) {

          attributes.title = options[field];

          if (includeFieldID) {

            attributes.titleField = field;

          }

        }

      }

      return attributes;

    },

    /**

     * Ensures changes made to fielded attributes are done on the fields too.

     *

     * This should be called when creating a macro tag from a placeholder.

     *

     * Changed made to attributes represented by fields are synced back to the

     * corresponding fields, if they exist. The alt/title attribute

     * values encoded in the macro will override the alt/title field values (set

     * in the Media dialog) during rendering of both WYSIWYG placeholders and

     * the final file entity on the server. Syncing makes changes applied to a

     * placeholder's alt/title attribute using native WYSIWYG tools visible in

     * the fields shown in the Media dialog.

     *

     * The reverse should be done when creating a placeholder from a macro tag

     * so changes made in the Media dialog are reflected in the placeholder's

     * alt and title attributes or the values there become stale and the change

     * appears uneffective.

     *

     * @param file_info (object)

     *   A JSON decoded object of the file being inserted/updated.

     */

    syncAttributesToFields: function(file_info) {

      if (!file_info) {

        file_info = {};

      }

      if (!file_info.attributes) {

        file_info.attributes = {};

      }

      if (!file_info.fields) {

        file_info.fields = {};

      }

      var fields = Drupal.media.filter.parseAttributeFields(file_info.fields, true);

      // If the title attribute has changed, ensure the title field is updated.

      var titleAttr = file_info.attributes.title || false;

      if (fields.titleField && (titleAttr !== fields.title)) {

        file_info.fields[fields.titleField] = titleAttr;

      }

      // If the alt attribute has changed, ensure the alt field is updated.

      var altAttr = file_info.attributes.alt || false;

      if (fields.altField && (altAttr !== fields.alt)) {

        file_info.fields[fields.altField] = altAttr;

      }

      return file_info;

    },

      var classRegex = 'class=([\'"])[^\\1]*?media-element';

          var markup = matches[i];

          var macro = Drupal.media.filter.create_macro($(markup));

          // If we have a truthy response, store the macro and perform the

          // replacement.

          if (macro) {

            Drupal.settings.tagmap[macro] = markup;

            content = content.replace(markup, macro);

          }

      // Extract attributes represented by fields and use those values to keep

      // them in sync, usually alt and title.

      info.fields = info.attributes;

      var attributes = Drupal.media.filter.parseAttributeFields(info.attributes);

      info.attributes = $.extend(info.attributes, attributes);

            element.attr(a, $('<textarea />').html(info.attributes[a]).text());

        // Remove any existing view mode classes.

        element.removeClass (function (index, css) {

          return (css.match (/\bfile-\S+/g) || []).join(' ');

        });

      return Drupal.media.filter.syncAttributesToFields(file_info);