<?php
/*******************************************************************************
* Code Highlighting © 2010-2012, Bugo                                          *
********************************************************************************
* Subs-Highlight.php                                                           *
********************************************************************************
* License http://creativecommons.org/licenses/by-nc-nd/3.0/deed.ru CC BY-NC-ND *
* Support and updates for this software can be found at http://dragomano.ru    *
*******************************************************************************/

if (!defined('SMF'))
    die('Hacking attempt...');


global $darkThemeIDS, $darkThemeHighlightCSS, $lightThemeHighlightCSS;
$darkThemeIDS = array(3, 5, 7, 9, 11, 13);
$darkThemeHighlightCSS = "monokai_sublime.css";
$lightThemeHighlightCSS = "vs.css";


// Code tag
function ch_code_tag(&$codes)
{
    global $modSettings, $txt, $settings;

    $codeWrapHTML1 = '<div class=\"block_code\" id=\"code_a" . $codecounter . "\"><pre><code>$1</code></pre></div>"';
    $codeWrapHTML2 = '<div class=\"block_code\" id=\"code_b" . $codecounter . "\"><pre><code class=\"" . $data[1] . "\">$1</code></pre></div>"';

    if (!empty($modSettings['ch_enable']))
    {
        foreach ($codes as $tag => $dump)
            if ($dump['tag'] == 'code') unset($codes[$tag]);

        $codes[] = array(
            'tag' => 'code',
            'type' => 'unparsed_content',
            'validate' => isset($disabled['code']) ? null : create_function('&$tag, &$data, $disabled', '
                global $txt;
                // select all and copy code to clipboard mod
                static $codecounter = 0;
                $codecounter++;
                $tag[\'content\'] = "<div class=\"codeheader\">" . $txt[\'smf238\'] . ": <a href=\"javascript:void(0)\" title=\"" . $txt[\'codeselectall\'] . "\" onclick=\"javascript:selectall(\'code_a" . $codecounter . "\');return false;\">" . $txt[\'codeselectall\'] . "</a></div>' . $codeWrapHTML1 . ';
            '),
            'block_level' => true,
        );
        $codes[] = array(
            'tag' => 'code',
            'type' => 'unparsed_equals_content',
            'validate' => isset($disabled['code']) ? null : create_function('&$tag, &$data, $disabled', '
                global $txt;
                // select all and copy code to clipboard mod
                static $codecounter = 0;
                $codecounter++;
                $tag[\'content\'] = "<div class=\"codeheader\">" . $txt[\'smf238\'] . ": " . $data[1] . " <a href=\"javascript:void(0)\" title=\"" . $txt[\'codeselectall\'] . "\" onclick=\"javascript:selectall(\'code_b" . $codecounter . "\');return false;\">" . $txt[\'codeselectall\'] . "</a></div>' . $codeWrapHTML2 . ';
            '),
            'block_level' => true,
        );
    }

    // Copyright Info
    if (isset($context['current_action']) && $context['current_action'] == 'credits')
        $context['copyrights']['mods'][] = '<a href="http://dragomano.ru/page/code-highlighting" target="_blank">Code Highlighting</a> &copy; 2010&ndash;2012, Bugo';
}

// Code Highlighting
function ch_load_theme()
{
    global $txt, $modSettings, $context, $settings, $darkThemeIDS, $darkThemeHighlightCSS, $lightThemeHighlightCSS;

    loadLanguage('Highlight');

    if (!isset($modSettings['ch_enable'])) updateSettings(array('ch_enable' => '1'));
    if (!isset($modSettings['ch_tab'])) updateSettings(array('ch_tab' => '4'));

    // Highlight
    if (!empty($modSettings['ch_enable']))
    {
        $i = 0;
        $tab = '';
        if (!empty($modSettings['ch_tab'])) {
            while ($i < $modSettings['ch_tab']) {
                $tab .= ' ';
                $i++;
            }
        }

        $style_css = 'default.css';
        if (in_array($settings['theme_id'], $darkThemeIDS))
        {
            $style_css = $darkThemeHighlightCSS;
        }
        else
        {
            $style_css = $lightThemeHighlightCSS;
        }

        $context['html_headers'] .= '
    <link rel="stylesheet" type="text/css" href="' . $settings['default_theme_url'] . '/styles/' . $style_css . '" />';

        if (isset($_REQUEST['sa']) && $_REQUEST['sa'] == 'showoperations') return;

        if (!WIRELESS && !in_array($context['current_action'], array('helpadmin', 'printpage')))
            $context['html_headers'] .= '
        <script type="text/javascript" src="' . $settings['default_theme_url'] . '/highlight.pack.js"></script>
        <script type="text/javascript">
        hljs.configure({
          tabReplace: "' . $tab . '",
          useBR: true
        });
        hljs.initHighlightingOnLoad();
        </script>';

    }

    // Preview
    if (!empty($modSettings['ch_enable']) && in_array($context['current_action'], array('post', 'post2')))
        $context['html_headers'] .= '
        <script type="text/javascript">
            var highlightPreviewCodeBlocks = function(){
                if (highlightPreviewCodeBlocks.calling)
                    return;
                highlightPreviewCodeBlocks.calling = true;
                var blocks = document.querySelectorAll("#preview_body pre code");
                Array.prototype.forEach.call(blocks, hljs.highlightBlock);
                highlightPreviewCodeBlocks.calling = false;
            };

            document.querySelector("#preview_body").addEventListener("DOMSubtreeModified", highlightPreviewCodeBlocks, false);
        </script>';

}

function ch_buffer(&$buffer)
{
    global $modSettings, $txt, $settings, $darkThemeIDS, $darkThemeHighlightCSS, $lightThemeHighlightCSS;

    $i = 0;
    $tab = '';
    if (!empty($modSettings['ch_tab'])) {
        while ($i < $modSettings['ch_tab']) {
            $tab .= ' ';
            $i++;
        }
    }

    $style_css = 'default.css';
    if (in_array($settings['theme_id'], $darkThemeIDS))
    {
        $style_css = $darkThemeHighlightCSS;
    }
    else
    {
        $style_css = $lightThemeHighlightCSS;
    }

    $search = $replace = '';

    if (!empty($modSettings['ch_enable']) && isset($txt['operation_title']))
    {
        $css = "\n\t\t" . '<link rel="stylesheet" type="text/css" href="' . $settings['default_theme_url'] . '/styles/' . $style_css . '" />';
        $js = "\n\t\t" . '<script type="text/javascript" src="' . $settings['default_theme_url'] . '/highlight.pack.js"></script>
        <script type="text/javascript">
        hljs.configure({
          tabReplace: "' . $tab . '",
          useBR: true
        });
        hljs.initHighlightingOnLoad();
        </script>';
        $search = '<title>' . $txt['operation_title'] . '</title>';
        $replace = $search . $css . $js;
    }

    return (isset($_REQUEST['xml']) ? $buffer : str_replace($search, $replace, $buffer));
}

function ch_admin_areas(&$admin_areas)
{
    global $txt;

    loadLanguage('Highlight');

    $context['admin_areas']['config']['areas']['modsettings']['subsections']['highlight'] = array($txt['ch_title']);
}

function ch_modifications(&$subActions)
{
    $subActions['highlight'] = 'ch_settings';
}

// Modification settings
function ch_settings()
{
    global $txt, $context, $scripturl, $modSettings;

    loadLanguage('Highlight');

    $context['settings_title'] = $txt['ch_settings'];
    $context['post_url'] = $scripturl . '?action=featuresettings2;save;sa=highlight';

    $config_vars = array(
        array('check', 'ch_enable'),
        array('int', 'ch_tab')
    );

    if (!empty($modSettings['ch_enable']) && function_exists('file_get_contents')) $config_vars[] = array('callback', 'ch_example');

    // Saving?
    if (isset($_GET['save']))
    {
        checkSession();
        saveDBSettings($config_vars);
        redirectexit('action=featuresettings;;sa=highlight');
    }

    prepareDBSettingContext($config_vars);
}

// Example template
function template_callback_ch_example()
{
    global $txt, $context, $settings;

    loadLanguage('Highlight');

    if (file_exists($settings['default_theme_dir'] . '/css/admin.css'))
    {
        $file = @file_get_contents($settings['default_theme_dir'] . '/css/admin.css');
        $file = parse_bbc('[code]' . $file . '[/code]');
        echo '<dl><strong>' . $txt['ch_example'] . '</strong>' . $file . '</dl><dt></dt><dd></dd>';
    }
}

?>