~elementary-pantheon/contractor/master

/*

 * Copyright (C) 2013-2017 elementary Developers

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

public class Contractor.MimeTypeManager : Object {

    private string[] values;

    private bool is_conditional = false;

    public MimeTypeManager (string[] mimetypes) throws Error {

        if ("!" in mimetypes[0]) { // See if we have a conditional mimetype

            is_conditional = true;

            mimetypes[0] = mimetypes[0].replace ("!", ""); // remove the '!'

        }

        values = String.clean_array (mimetypes);

        if (values.length == 0) {

            throw new KeyFileError.INVALID_VALUE ("No values specified for MimeType.");

        }

    }

    public bool is_type_supported (string mime_type) {

        bool has_mimetype = contains_mimetype (mime_type);

        return is_conditional ? !has_mimetype : has_mimetype;

    }

    private bool contains_mimetype (string mime_type) {

        foreach (string local_mime_type in values) {

            if (compare (mime_type, local_mime_type)) {

                return true;

            }

        }

        return false;

    }

    private static bool compare (string mime_type, string ref_mime_type) {

        return mime_type.has_prefix (ref_mime_type)

            || ContentType.equals (mime_type, ref_mime_type)

            || ContentType.is_a (mime_type, ref_mime_type);

    }

}