thumbnailsPlugin.php
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<?php
/**
* $Id$
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009, 2010 KnowledgeTree Inc.
*
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* 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/>.
*
* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, or email info@knowledgetree.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
* Contributor( s): ______________________________________
*/
require_once(KT_LIB_DIR . '/plugins/plugin.inc.php');
require_once(KT_LIB_DIR . '/plugins/pluginregistry.inc.php');
class DeleteThumbnailTrigger {
var $namespace = 'thumbnail.triggers.delete.document.checkin';
var $aInfo = null;
function setInfo($aInfo) {
$this->aInfo = $aInfo;
}
/**
* On checkin of a document, delete the thumbnail so a new one can be generated
*/
function postValidate() {
$oDoc = $this->aInfo['document'];
$docId = $oDoc->getId();
$docInfo = array('id' => $docId, 'name' => $oDoc->getName());
// Delete the pdf document
global $default;
$varDirectory = $default->varDirectory;
$file = $varDirectory . DIRECTORY_SEPARATOR . "thumbnails" . DIRECTORY_SEPARATOR .$docId.'.jpg';
if(file_exists($file)){
@unlink($file);
}
}
}
class thumbnailsPlugin extends KTPlugin {
var $sNamespace = 'thumbnails.generator.processor.plugin';
var $iVersion = 0;
var $autoRegister = true;
function thumbnailsPlugin($sFilename = null) {
$res = parent::KTPlugin($sFilename);
$this->sFriendlyName = _kt('Thumbnail Generator');
$this->sSQLDir = dirname(__FILE__) . DIRECTORY_SEPARATOR . 'sql' . DIRECTORY_SEPARATOR;
return $res;
}
/**
* Setup the plugin: add the processor, viewlet action and template location
*
*/
function setup() {
$plugin_dir = dirname(__FILE__) . DIRECTORY_SEPARATOR;
$dir = $plugin_dir . 'thumbnails.php';
$this->registerProcessor('thumbnailGenerator', 'thumbnails.generator.processor', $dir);
$this->registerAction('documentviewlet', 'ThumbnailViewlet', 'thumbnail.viewlets', $dir);
$this->registerColumn(_kt('Thumbnail'), 'thumbnails.generator.column', 'ThumbnailColumn', $dir);
$this->registerTrigger('checkin', 'postValidate', 'DeleteThumbnailTrigger','thumbnail.triggers.delete.document.checkin', __FILE__);
require_once(KT_LIB_DIR . '/templating/templating.inc.php');
$oTemplating =& KTTemplating::getSingleton();
$oTemplating->addLocation('thumbnails', $plugin_dir.'templates', 'thumbnails.generator.processor.plugin');
// check for existing config settings entry and only add if not already present
$sql = 'SELECT id FROM `config_settings` WHERE group_name = "externalBinary" AND item = "convertPath"';
$result = DBUtil::getOneResult($sql);
if(PEAR::isError($result) || empty($result)) {
DBUtil::runQuery('INSERT INTO `config_settings` (group_name, display_name, description, item, value, default_value, type, options, can_edit) '
. 'VALUES ("externalBinary", "convert", "The path to the ImageMagick \"convert\" binary", "convertPath", "default", "convert", '
. '"string", NULL, 1);');
}
}
}
$oPluginRegistry =& KTPluginRegistry::getSingleton();
$oPluginRegistry->registerPlugin('thumbnailsPlugin', 'thumbnails.generator.processor.plugin', __FILE__);
?>