0byt3m1n1

Path: /data/applications/aps/gallery/2.2-08/standard/htdocs/modules/ecard/classes/ [ Home ]
File: EcardHelper.class
<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2007 Bharat Mediratta
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */

/**
 * Helper functions for eCards
 * @package Ecard
 * @subpackage Classes
 * @author Nico Kaiser <nico@siriux.net>
 * @author Dariush Molavi <dari@nukedgallery.net>
 * @version $Revision: 15669 $
 * @static
 */
class EcardHelper {

    /**
     * Returns the smallest size of an item
     * @param int $itemId
     * @return array object GalleryStatus a status code
     *               object GalleryItem an item
     */
    function getSmallestSize($itemId) {
	list ($ret, $permissions) = GalleryCoreApi::getPermissions($itemId);
	if ($ret) {
	    return array($ret, null);
	}

	if (isset($permissions['core.viewResizes'])) {
	    /* Try to get the smallest derivative */
	    list ($ret, $resizes) = GalleryCoreApi::fetchResizesByItemIds(array($itemId));
	    if ($ret) {
		return array($ret, null);
	    }
	    if (!empty($resizes)) {
		$currentDimensions = 0;
		foreach ($resizes[$itemId] as $resize) {
		    /* Rebuild the derivative if we don't have its dimensions */
		    if ($resize->getWidth() == 0 || $resize->getHeight() == 0) {
			list ($ret, $resize) =
			    GalleryCoreApi::rebuildDerivativeCacheIfNotCurrent($resize->getId());
			if ($ret) {
			    return array($ret, null);
			}
		    }
		    $dimensions = $resize->getWidth() + $resize->getHeight();
		    if (!$currentDimensions || $dimensions < $currentDimensions) {
			$currentDimensions = $dimensions;
			$item = $resize;
		    }
		}
		return array(null, $item);
	    }
	}
	if (isset($permissions['core.viewSource'])) {
	    list ($ret, $item) = GalleryCoreApi::loadEntitiesById($itemId);
	    if ($ret) {
		return array($ret, null);
	    }
	    list ($ret, $preferred) = GalleryCoreApi::fetchPreferredsByItemIds(array($itemId));
	    if ($ret) {
		return array($ret, null);
	    }
	    return array(null, empty($preferred) ? $item : $preferred[$itemId]);
	}
	if (isset($permissions['core.view'])) {
	    list ($ret, $thumbnail) = GalleryCoreApi::fetchThumbnailsByItemIds(array($itemId));
	    if ($ret) {
		return array($ret, null);
	    }
	    if (isset($thumbnail[$itemId])) {
		return array(null, $thumbnail[$itemId]);
	    }
	}
	return array(GalleryCoreApi::error(ERROR_MISSING_VALUE, __FILE__, __LINE__), null);
    }

    /**
     * Replaces keywords using given values
     *
     * @param string $str source string
     * @param array $array the submitted form
     * @return string output string
     */
    function replaceKeywords($str, $array) {
	$result = $str;
	foreach (array('from', 'fromName', 'to', 'toName',
		       'text', 'header', 'footer', 'image', 'link') as $key) {
	    if (isset($array[$key])) {
		$result = str_replace('%' . $key . '%', $array[$key], $result);
	    }
	}
	return $result;
    }

    /**
     * Determine if we should use validation plugins.
     *
     * @return array object GalleryStatus a status code
     *               boolean true to use validation plugins
     */
    function useValidationPlugins() {
	list ($ret, $level) =
	    GalleryCoreApi::getPluginParameter('module', 'ecard', 'validation.level');
	if ($ret) {
	    return array($ret, null);
	}
	return array(null, $level != 'OFF');
    }
}
?>