content_type_markdown_edit_fns.inc

<?php
require_once SQ_CORE_PACKAGE_PATH.'/content_type/content_type_edit_fns.inc';

class Content_Type_Markdown_Edit_Fns extends Content_Type_Edit_Fns
{


    function __construct()
    {
        parent::__construct();

    }//end constructor


    function paintBackend(&$asset, $prefix)
    {
        if ($asset->writeAccess('attributes')) {
            $size = $GLOBALS['SQ_SYSTEM']->getUserPrefs($asset->type(), 'SQ_MARKDOWN_SIZE');
            $markdown = $asset->attr('markdown');
            $markdownify_not_configured_message = '';
            if ($markdown == '') {
                $html = $asset->attr('html');
                if (trim($html) != '') {
                    $is_markdownified = FALSE;
                    require_once SQ_DATA_PATH.'/private/conf/tools.inc';
                    require_once SQ_FUDGE_PATH.'/general/text.inc';
                    if (SQ_TOOL_MARKDOWNIFY_ENABLED && is_file(SQ_TOOL_MARKDOWNIFY_PATH)) {
                        require_once SQ_TOOL_MARKDOWNIFY_PATH;
                        $class_name = basename(SQ_TOOL_MARKDOWNIFY_PATH, '.php');
                        if (method_exists($class_name, 'parseString')) {
                            $markdownify = new $class_name;

                            // Keep the html 'pure' only make changes on safe_html
                            $safe_html = $html;

                            // Find the keywords and make them 'markdown-proof'
                            $keywords = retrieve_keywords_replacements($html);
                            foreach ($keywords as $keyword) {
                                $safe_keyword = '%'.str_replace('_', '[MY3SEP]', $keyword).'%';
                                $safe_html = str_replace('%'.$keyword.'%', $safe_keyword, $safe_html);
                            }//end foreach

                            // Convert HTML to Markdown
                            $markdown = $markdownify->parseString($safe_html);

                            // Change the safe keywords back to normal keywords
                            foreach ($keywords as $keyword) {
                                $safe_keyword = '%'.str_replace('_', '[MY3SEP]', $keyword).'%';
                                $markdown = str_replace($safe_keyword, '%'.$keyword.'%', $markdown);
                            }//end foreach
                            $is_markdownified = TRUE;
                        }
                    }

                    //if can not markdownify, keep the HTML value
                    if (!$is_markdownified) {
                        $markdown = $html;
                        $markdownify_not_configured_message = translate('cms_content_type_markdown_markdownify_tool_not_configured');
                    }

                }//end if (trim($html) != '')
            }//end if ($markdown == '')
            

            $em = $GLOBALS['SQ_SYSTEM']->getEventManager();
            $keywords = Array();
            $prepared_keywords = Array();
            $keyword_vars = Array('keywords' => &$keywords);
            $em->broadcastEvent($asset, 'requestKeywords', $keyword_vars);
            if (!empty($keywords)) {
                foreach ($keywords as $key => $name) {
                    $prepared_keywords['%'.$key.'%'] = $name;
                }
                keyword_selector($prepared_keywords, $prefix.'_markdown');
            }

            //print a notice if markdownify is not configured when it is needed
            if ($markdownify_not_configured_message != '') {
                echo '<span class="sq-backend-warning">'.$markdownify_not_configured_message.'</span><br />';
            }

            //print a notice if markdown is not configured
            $markdown_configured = FALSE;
            if (SQ_TOOL_MARKDOWN_ENABLED && is_file(SQ_TOOL_MARKDOWN_PATH)) {
                require_once SQ_TOOL_MARKDOWN_PATH;
                if (function_exists('Markdown')) {
                    $markdown_configured = TRUE;
                }
            }
            if (!$markdown_configured) {
                echo '<span class="sq-backend-warning">'.translate('cms_content_type_markdown_markdown_tool_not_configured').'</span><br />';
            }

            //print editor
            text_area($prefix.'_markdown', $markdown, '', '', 0, 'style="width: '.$size['width'].'; height: '.$size['height'].'; font-family: \'Courier New\', Courier, monospace; display: block"');
        }
        return TRUE;

    }//end paintBackend()


    function processBackend($link, &$asset, $prefix)
    {
        if ($asset->writeAccess('attributes')) {
            if (isset($_POST[$prefix.'_markdown'])) {
                $markdown = $_POST[$prefix.'_markdown'];
                $current_markdown = $asset->attr('markdown');
                if ($markdown != $current_markdown) {
                    require_once SQ_DATA_PATH.'/private/conf/tools.inc';
                    require_once SQ_FUDGE_PATH.'/general/text.inc';
                    if (SQ_TOOL_MARKDOWN_ENABLED && is_file(SQ_TOOL_MARKDOWN_PATH)) {
                        require_once SQ_TOOL_MARKDOWN_PATH;
                        if (function_exists('Markdown')) {
                            // Keep the markdown 'pure' only make changes on safe_markdown
                            $safe_markdown = $markdown;

                            // Find the keywords and make them 'markdown-proof'
                            $keywords = retrieve_keywords_replacements($markdown);
                            foreach ($keywords as $keyword) {
                                $safe_keyword = '%'.str_replace('_', '[MY3SEP]', $keyword).'%';
                                $safe_markdown = str_replace('%'.$keyword.'%', $safe_keyword, $safe_markdown);
                            }//end foreach

                            // Convert Markdown to HTML
                            $html = Markdown($safe_markdown);

                            // Change the safe keywords back to normal keywords
                            foreach ($keywords as $keyword) {
                                $safe_keyword = '%'.str_replace('_', '[MY3SEP]', $keyword).'%';
                                $html = str_replace($safe_keyword, '%'.$keyword.'%', $html);
                            }//end foreach

                            // Save the changes
                            if ($asset->setAttrValue('markdown', $markdown) && $asset->setAttrValue('html', $html)) {
                                return TRUE;
                            }
                        }
                    } else {
                        trigger_localised_error('CMS0107', E_USER_WARNING);
                    }

                }//end if
            }
        }
        return FALSE;

    }//end processBackend()


}//end class

?>