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<?php
// $Id$
// A collaborative project by Matt Westgate <drupal at asitis dot org>,
// Richard Bennett <richard.b@ at ritechnologies dot com> and Jeff Robbins <robbins at jjeff dot com>

/**
 * @file
 * Integrate the TinyMCE editor (http://tinymce.moxiecode.com/) into Drupal.
 */

/**
 * Implementation of hook_menu().
 */
function tinymce_menu($may_cache) {
  $items = array();
  if ($may_cache) {
    $items[] = array('path' => 'admin/settings/tinymce', 'title' => t('TinyMCE'),
                     'callback' => 'tinymce_admin',
                     'description' => t('Configure the rich editor.'),
                     'access' => user_access('administer tinymce'));
  }
  return $items;
}

/**
 * Implementation of hook_help().
 */
function tinymce_help($section) {
  switch ($section) {
    case 'admin/settings/tinymce#pages':
      return "node/*\nuser/*\ncomment/*";
    case 'admin/settings/tinymce':
    case 'admin/help#tinymce' :
      return t('<p style="font-size:x-small">$Revision$ $Date$</p>' .
               '<p>TinyMCE adds what-you-see-is-what-you-get (WYSIWYG) html editing to textareas. This editor can be enabled/disabled without reloading the page by clicking a link below each textarea.</p>
                <p>Profiles can be defined based on user roles. A TinyMCE profile can define which pages receive this TinyMCE capability, what buttons or themes are enabled for the editor, how the editor is displayed, and a few other editor functions.</p>
                <p>Lastly, only users with the <code>access tinymce</code> <a href="!url">permission</a> will be able to use TinyMCE.</p>', array('!url' => url('admin/user/access'))
              );
  }
}

/**
 * Implementation of hook_perm().
 */
function tinymce_perm() {
  $array = array('administer tinymce', 'access tinymce');
  $tinymce_mod_path = drupal_get_path('module', 'tinymce');

  if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/imagemanager/')) {
    $array[] = 'access tinymce imagemanager';
  }
  if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/filemanager/')) {
    $array[] = 'access tinymce filemanager';
  }

  return $array;
}

/**
 * Implementation of hook_elements().
 */
function tinymce_elements() {
  $type = array();

  if (user_access('access tinymce')) {
    // Let TinyMCE potentially process each textarea.
    $type['textarea'] = array('#process' => array('tinymce_process_textarea' => array()));
  }

  return $type;
}

/**
 * Attach tinymce to a textarea
 */
function tinymce_process_textarea($element) {
  static $is_running = FALSE;
  global $user;
  static $profile_name;

  //$element is an array of attributes for the textarea but there is no just 'name' value, so we extract this from the #id field
  $textarea_name = substr($element['#id'], strpos($element['#id'], '-') + 1);

  // Since tinymce_config() makes a db hit, only call it when we're pretty sure
  // we're gonna render tinymce.
  if (!$profile_name) {
    $profile_name = db_result(db_query('SELECT s.name FROM {tinymce_settings} s INNER JOIN {tinymce_role} r ON r.name = s.name WHERE r.rid IN (%s)', implode(',', array_keys($user->roles))));
    if (!$profile_name) {
      return $element;
    }
  }
  $profile = tinymce_profile_load($profile_name);
  $init = tinymce_config($profile);
  $init['elements'] = 'edit-'. $textarea_name;

  if (_tinymce_page_match($profile)) {
    // Merge user-defined TinyMCE settings.
    $init = (array) theme('tinymce_theme', $init, $textarea_name, $init['theme'], $is_running);

    // If $init array is empty no need to execute rest of code since there are no textareas to theme with TinyMCE
    if (count($init) < 1) {
      return $element;
    }

    $settings = array();
    foreach ($init as $k => $v) {
      $v = is_array($v) ? implode(',', $v) : $v;
      // Don't wrap the JS init in quotes for boolean values or functions.
      if (strtolower($v) != 'true' && strtolower($v) != 'false' && $v[0] != '{') {
        $v = '"'. $v. '"';
      }
      $settings[] = $k. ' : '. $v;
    }
    $tinymce_settings = implode(",\n    ", $settings);

    $enable  = t('enable rich-text');
    $disable = t('disable rich-text');

$tinymce_invoke = <<<EOD

  tinyMCE.init({
    $tinymce_settings
  });

EOD;

$tinymce_gz_invoke = <<<EOD

  tinyMCE_GZ.init({
    $tinymce_settings
  });

EOD;

$js_toggle = <<<EOD

  function mceToggle(id, linkid) {
    element = document.getElementById(id);
    link = document.getElementById(linkid);
    img_assist = document.getElementById('img_assist-link-'+ id);

    if (tinyMCE.getEditorId(element.id) == null) {
      tinyMCE.addMCEControl(element, element.id);
      element.togg = 'on';
      link.innerHTML = '$disable';
      link.href = "javascript:mceToggle('" +id+ "', '" +linkid+ "');";
      if (img_assist)
        img_assist.innerHTML = '';
      link.blur();
    }
    else {
      tinyMCE.removeMCEControl(tinyMCE.getEditorId(element.id));
      element.togg = 'off';
      link.innerHTML = '$enable';
      link.href = "javascript:mceToggle('" +id+ "', '" +linkid+ "');";
      if (img_assist)
        img_assist.innerHTML = img_assist_default_link;
      link.blur();
    }
  }

EOD;

$status = tinymce_user_get_status($user, $profile);

// note we test for string == true because we save our settings as strings
$link_text = $status == 'true' ? $disable : $enable;
$img_assist_link = ($status == 'true') ? 'yes' : 'no';
$no_wysiwyg = t('Your current web browser does not support WYSIWYG editing.');
$wysiwyg_link = <<<EOD
<script type="text/javascript">
  img_assist = document.getElementById('img_assist-link-edit-$textarea_name');
  if (img_assist) {
    var img_assist_default_link = img_assist.innerHTML;
    if ('$img_assist_link' == 'yes') {
      img_assist.innerHTML = tinyMCE.getEditorId('edit-$textarea_name') == null ? '' : img_assist_default_link;
    }
    else {
      img_assist.innerHTML = tinyMCE.getEditorId('edit-$textarea_name') == null ? img_assist_default_link : '';
    }
  }
  if (typeof(document.execCommand) == 'undefined') {
    img_assist.innerHTML = img_assist_default_link;
    document.write('<div style="font-size:x-small">$no_wysiwyg</div>');
  }
  else {
    document.write("<div><a href=\"javascript:mceToggle('edit-$textarea_name', 'wysiwyg4$textarea_name');\" id=\"wysiwyg4$textarea_name\">$link_text</a></div>");
  }
</script>
EOD;

    // We only load the TinyMCE js file once per request
    if (!$is_running) {
      $is_running = TRUE;
      $tinymce_mod_path = drupal_get_path('module', 'tinymce');

      if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/imagemanager/') && user_access('access tinymce imagemanager') ) {
        // if tinymce imagemanager is installed
        drupal_add_js($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/imagemanager/jscripts/mcimagemanager.js');
      }

      if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/filemanager/') && user_access('access tinymce filemanager') ) {
        // if tinymce filemanager is installed
        drupal_add_js($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/filemanager/jscripts/mcfilemanager.js');
      }

      // TinyMCE Compressor 1.0.9 and greater
      if (file_exists($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/tiny_mce_gzip.js')) {
        drupal_add_js($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/tiny_mce_gzip.js');
        drupal_add_js($tinymce_gz_invoke, 'inline');
      }
      // TinyMCE Compressor (versions < 1.0.9)
      elseif (file_exists($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/tiny_mce_gzip.php')) {
        drupal_add_js($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/tiny_mce_gzip.php');
      }
      else {
        // For some crazy reason IE will only load this JS file if the absolute reference is given to it.
        drupal_add_js($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/tiny_mce.js');
      }
      drupal_add_js($js_toggle, 'inline');
      // We have to do this becuase of some unfocused CSS in certain themes. See http://drupal.org/node/18879 for details
      drupal_set_html_head('<style type="text/css" media="all">.mceEditor img { display: inline; }</style>');
    }
    // Load a TinyMCE init for each textarea.
    if ($init) drupal_add_js($tinymce_invoke, 'inline');

    //settings are saved as strings, not booleans
    if ($profile->settings['show_toggle'] == 'true') {
      // Make sure to append to #suffix so it isn't completely overwritten
      $element['#suffix'] .= $wysiwyg_link;
    }
    // Set resizable to false to avoid drupal.js resizable function from taking control of the textarea
    $element['#resizable'] = FALSE;
  }

  return $element;
}

/**
 * Implementation of hook_user().
 */
function tinymce_user($type, &$edit, &$user, $category = NULL) {
  if ($type == 'form' && $category == 'account' && user_access('access tinymce')) {
    $profile = tinymce_user_get_profile($user);

    // because the settings are saved as strings we need to test for the string 'true'
    if ($profile->settings['user_choose'] == 'true') {
      $form['tinymce'] = array(
        '#type' => 'fieldset',
        '#title' => t('TinyMCE rich-text settings'),
        '#weight' => 10,
        '#collapsible' => TRUE,
        '#collapsed' => TRUE
      );

      $form['tinymce']['tinymce_status'] = array(
        '#type' => 'select',
        '#title' => t('Default state'),
        '#default_value' => isset($user->tinymce_status) ? $user->tinymce_status : (isset($profile->settings['default']) ? $profile->settings['default'] : 'false'),
        '#options' => array('false' => t('disabled'), 'true' => t('enabled')),
        '#description' => t('Should rich-text editing be enabled or disabled by default in textarea fields?')
      );

      return array('tinymce' => $form);
    }
  }
  if ($type == 'validate') {
    return array('tinymce_status' => $edit['tinymce_status']);
  }
}

/**
 * @addtogroup themeable
 * @{
 */

/**
 * Customize a TinyMCE theme.
 *
 * @param init
 *   An array of settings TinyMCE should invoke a theme. You may override any
 *   of the TinyMCE settings. Details here:
 *
 *    http://tinymce.moxiecode.com/wrapper.php?url=tinymce/docs/using.htm
 *
 * @param textarea_name
 *   The name of the textarea TinyMCE wants to enable.
 *
 * @param theme_name
 *   The default tinymce theme name to be enabled for this textarea. The
 *   sitewide default is 'simple', but the user may also override this.
 *
 * @param is_running
 *   A boolean flag that identifies id TinyMCE is currently running for this
 *   request life cycle. It can be ignored.
 */
function theme_tinymce_theme($init, $textarea_name, $theme_name, $is_running) {
  switch ($textarea_name) {
    // Disable tinymce for these textareas
    case 'log': // book and page log
    case 'img_assist_pages':
    case 'caption': // signature
    case 'pages':
    case 'access_pages': //TinyMCE profile settings.
    case 'user_mail_welcome_body': // user config settings
    case 'user_mail_approval_body': // user config settings
    case 'user_mail_pass_body': // user config settings
    case 'synonyms': // taxonomy terms
    case 'description': // taxonomy terms
      unset($init);
      break;

    // Force the 'simple' theme for some of the smaller textareas.
    case 'signature':
    case 'site_mission':
    case 'site_footer':
    case 'site_offline_message':
    case 'page_help':
    case 'user_registration_help':
    case 'user_picture_guidelines':
      $init['theme'] = 'simple';
      foreach ($init as $k => $v) {
        if (strstr($k, 'theme_advanced_')) unset($init[$k]);
      }
      break;
  }

  /* Example, add some extra features when using the advanced theme.

  // If $init is available, we can extend it
  if (isset($init)) {
    switch ($theme_name) {
     case 'advanced':
       $init['extended_valid_elements'] = array('a[href|target|name|title|onclick]');
       break;
    }
  }

  */

  // Always return $init
  return $init;
}

/** @} End of addtogroup themeable */

/**
 * Grab the themes available to TinyMCE.
 *
 * TinyMCE themes control the functionality and buttons that are available to a
 * user. Themes are only looked for within the default TinyMCE theme directory.
 *
 * NOTE: This function is not used in this release. We are only using advanced theme.
 *
 * @return
 *   An array of theme names.
 */
function _tinymce_get_themes() {
  static $themes = array();

  if (!$themes) {
    $theme_loc = drupal_get_path('module', 'tinymce') .'/tinymce/jscripts/tiny_mce/themes/';
    if (is_dir($theme_loc) && $dh = opendir($theme_loc)) {
      while (($file = readdir($dh)) !== false) {
        if (!in_array($file, array('.', '..', 'CVS')) && is_dir($theme_loc . $file)) {
          $themes[$file] = $file;
        }
      }
      closedir($dh);
      asort($themes);
    }
  }

  return $themes;
}

/**
 * Return plugin metadata from the plugin registry.
 *
 * We also scrape each plugin's *.js file for the human friendly name and help
 * text URL of each plugin.
 *
 * @return
 *   An array for each plugin.
 */
function _tinymce_get_buttons($skip_metadata = TRUE) {
  include_once(drupal_get_path('module', 'tinymce'). '/plugin_reg.php');
  $plugins = _tinymce_plugins();

  if ($skip_metadata == FALSE && is_array($plugins)) {
    foreach ($plugins as $name => $plugin) {
      $file = drupal_get_path('module', 'tinymce'). '/tinymce/jscripts/tiny_mce/plugins/'. $name .'/editor_plugin_src.js';
      // Grab the plugin metadata by scanning the *.js file.
      if (file_exists($file)) {
        $lines = file($file);
        $has_longname = FALSE;
        $has_infourl = FALSE;
        foreach ($lines as $line) {
          if ($has_longname && $has_infourl) break;
          if (strstr($line, 'longname')) {
            $start = strpos($line, "'") + 1;
            $end = strrpos($line, "'") - $start;
            $metadata[$name]['longname'] = substr($line, $start, $end);
            $has_longname = TRUE;
          }
          elseif (strstr($line, 'infourl')) {
            $start = strpos($line, "'") + 1;
            $end = strrpos($line, "'") - $start;
            $metadata[$name]['infourl'] = substr($line, $start, $end);
            $has_infourl = TRUE;
          }
        }
      }

      // Find out the buttons a plugin has.
      foreach ($plugin as $k => $v) {
        if (strstr($k, 'theme_advanced_buttons')) {
          $metadata[$name]['buttons'] = array_merge((array) $metadata[$name]['buttons'], $plugin[$k]);
        }
      }
    }
    return $metadata;
  }

  return $plugins;
}
/********************************************************************
 * Module Functions :: Public
 ********************************************************************/

/**
 * Controller for tinymce administrative settings.
 */
function tinymce_admin($arg = NULL) {

  $edit = $_POST;
  $op = $_POST['op'];

  $op = $arg && !$op ? $arg : $op;

  switch ($op) {
    case 'add':
      $breadcrumb[] = array('path' => 'admin', 'title' => t('administer'));
      $breadcrumb[] = array('path' => 'admin/settings/tinymce', 'title' => t('tinymce'));
      $breadcrumb[] = array('path' => 'admin/settings/tinymce/add', 'title' => t('Add new TinyMCE profile'));
      menu_set_location($breadcrumb);
      $output = tinymce_profile_form($edit);
      break;

    case 'edit':
      drupal_set_title(t('Edit tinymce profile'));
      $output = tinymce_profile_form(tinymce_profile_load(urldecode(arg(4))));
      break;

    case 'delete':
      tinymce_profile_delete(urldecode(arg(4)));
      drupal_set_message(t('Deleted profile'));
      drupal_goto('admin/settings/tinymce');
      break;

    case t('Create profile');
    case t('Update profile');
      if (tinymce_profile_validate($edit)) {
        tinymce_profile_save($edit);
        $edit['old_name'] ? drupal_set_message(t('Your TinyMCE profile has been updated.')) : drupal_set_message(t('Your TinyMCE profile has been created.'));
        drupal_goto('admin/settings/tinymce');
      }
      else {
        $output = tinymce_profile_form($edit);
      }
      break;

    default:
      drupal_set_title(t('TinyMCE settings'));
      //Check if TinyMCE is installed.
      $tinymce_loc = drupal_get_path('module', 'tinymce') .'/tinymce/';
      if (!is_dir($tinymce_loc)) {
        drupal_set_message(t('Could not find the TinyMCE engine installed at <strong>!tinymce-directory</strong>. Please <a href="http://tinymce.moxiecode.com/">download TinyMCE</a>, uncompress it and copy the folder into !tinymce-path.', array('!tinymce-path' => drupal_get_path('module', 'tinymce'), '!tinymce-directory' => $tinymce_loc)), 'error');
      }
      $output = tinymce_profile_overview();
  }

  return $output;
}

/**
 * Return an array of initial tinymce config options from the current role.
 */
function tinymce_config($profile) {
  global $user;

  // Drupal theme path.
  $themepath = path_to_theme() . '/';
  $host = base_path();

  $settings = $profile->settings;

  // Build a default list of TinyMCE settings.

  // Is tinymce on by default?
  $status = tinymce_user_get_status($user, $profile);

  $init['mode']               = $status == 'true' ? 'exact' : 'none';
  $init['theme']              = $settings['theme'] ? $settings['theme'] : 'advanced';
  $init['relative_urls']      = 'false';
  $init['document_base_url']  = "$host";
  $init['language']           = $settings['language'] ? $settings['language'] : 'en';
  $init['safari_warning']     = $settings['safari_message'] ?  $settings['safari_message'] : 'false';
  $init['entity_encoding']    = 'raw';
  $init['verify_html']        = $settings['verify_html'] ? $settings['verify_html'] : 'false';
  $init['preformatted']       = $settings['preformatted'] ? $settings['preformatted'] : 'false';
  $init['convert_fonts_to_spans'] = $settings['convert_fonts_to_spans'] ? $settings['convert_fonts_to_spans'] : 'false';
  $init['remove_linebreaks'] = $settings['remove_linebreaks'] ? $settings['remove_linebreaks'] : 'true';
  $init['apply_source_formatting'] = $settings['apply_source_formatting'] ? $settings['apply_source_formatting'] : 'true';
  $init['theme_advanced_resize_horizontal'] = 'false';
  $init['theme_advanced_resizing_use_cookie'] = 'false';


  $tinymce_mod_path = drupal_get_path('module', 'tinymce');
  if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/imagemanager/') && user_access('access tinymce imagemanager')) {
    // we probably need more security than this
    $init['file_browser_callback'] = "mcImageManager.filebrowserCallBack";
  }
  if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/filemanager/') && user_access('access tinymce filemanager')) {
    // we probably need more security than this
    $init['file_browser_callback'] = "mcImageManager.filebrowserCallBack";
  }

  if ($init['theme'] == 'advanced') {
    $init['plugins'] = array();
    $init['theme_advanced_toolbar_location']  = $settings['toolbar_loc'] ? $settings['toolbar_loc'] : 'bottom';
    $init['theme_advanced_toolbar_align']     = $settings['toolbar_align'] ? $settings['toolbar_align'] : 'left';
    $init['theme_advanced_path_location']     = $settings['path_loc'] ? $settings['path_loc'] : 'bottom';
    $init['theme_advanced_resizing']          = $settings['resizing'] ? $settings['resizing'] : 'true';
    $init['theme_advanced_blockformats']      = $settings['block_formats'] ? $settings['block_formats'] : 'p,address,pre,h1,h2,h3,h4,h5,h6';

    if (is_array($settings['buttons'])) {
      // This gives us the $plugins variable.
      $plugins = _tinymce_get_buttons();

      // Find the enabled buttons and the mce row they belong on. Also map the
      // plugin metadata for each button.
      $plugin_tracker = array();
      foreach ($plugins as $rname => $rplugin) { // Plugin name
        foreach ($rplugin as $mce_key => $mce_value) { // TinyMCE key
          foreach ($mce_value as $k => $v) { // Buttons
            if ($settings['buttons'][$rname . '-' . $v]) {
              // Font isn't a true plugin, rather it's buttons made available by the advanced theme
              if (!in_array($rname, $plugin_tracker) && $rname != 'font') $plugin_tracker[] = $rname;
              $init[$mce_key][] = $v;
            }
          }
        }
        // Some advanced plugins only have an $rname and no buttons
        if ($settings['buttons'][$rname]) {
          if (!in_array($rname, $plugin_tracker)) $plugin_tracker[] = $rname;
        }
      }

      // Add the rest of the TinyMCE config options to the $init array for each button.
      if (is_array($plugin_tracker)) {
        foreach ($plugin_tracker as $pname) {
          if ($pname != 'default') $init['plugins'][] = $pname;
          foreach ($plugins[$pname] as $mce_key => $mce_value) {
            // Don't overwrite buttons or extended_valid_elements
            if ($mce_key == 'extended_valid_elements') {
              // $mce_value is an array for extended_valid_elements so just grab the first element in the array (never more than one)
              $init[$mce_key][] = $mce_value[0];
            }
            else if (!strstr($mce_key, 'theme_advanced_buttons')) {
              $init[$mce_key] = $mce_value;
            }
          }
        }
      }

      // Cleanup
      foreach ($init as $mce_key => $mce_value) {
        if (is_array($mce_value)) $mce_value = array_unique($mce_value);
        $init[$mce_key] = $mce_value;
      }

      // Shuffle buttons around so that row 1 always has the most buttons,
      // followed by row 2, etc. Note: These rows need to be set to NULL otherwise
      // TinyMCE loads it's own buttons inherited from the theme.
      if (!$init['theme_advanced_buttons1']) $init['theme_advanced_buttons1'] = array();
      if (!$init['theme_advanced_buttons2']) $init['theme_advanced_buttons2'] = array();
      if (!$init['theme_advanced_buttons3']) $init['theme_advanced_buttons3'] = array();

      $min_btns = 5; // Minimum number of buttons per row.
      $num1 = count($init['theme_advanced_buttons1']);
      $num2 = count($init['theme_advanced_buttons2']);
      $num3 = count($init['theme_advanced_buttons3']);

      if ($num3 < $min_btns) {
        $init['theme_advanced_buttons2'] = array_merge($init['theme_advanced_buttons2'], $init['theme_advanced_buttons3']);
        $init['theme_advanced_buttons3'] = array();
        $num2 = count($init['theme_advanced_buttons2']);
      }
      if ($num2 < $min_btns) {
        $init['theme_advanced_buttons1'] = array_merge($init['theme_advanced_buttons1'], $init['theme_advanced_buttons2']);
        // Squish the rows together, since row 2 is empty
        $init['theme_advanced_buttons2'] = $init['theme_advanced_buttons3'];
        $init['theme_advanced_buttons3'] = array();
        $num1 = count($init['theme_advanced_buttons1']);
      }
      if ($num1 < $min_btns) {
        $init['theme_advanced_buttons1'] = array_merge($init['theme_advanced_buttons1'], $init['theme_advanced_buttons2']);
        // Squish the rows together, since row 2 is empty
        $init['theme_advanced_buttons2'] = $init['theme_advanced_buttons3'];
        $init['theme_advanced_buttons3'] = array();
      }

    }
  }

  if ($settings['css_classes']) $init['theme_advanced_styles'] = $settings['css_classes'];

  if ($settings['css_setting'] == 'theme') {
    $css = $themepath . 'style.css';
    if (file_exists($css)) {
      $init['content_css'] = $host . $css;
    }
  }
  else if ($settings['css_setting'] == 'self') {
    $init['content_css'] = str_replace(array('%h', '%t'), array($host, $themepath), $settings['css_path']);
  }

  return $init;
}

/**
 * Remove a profile from the database.
 */
function tinymce_profile_delete($name) {
  db_query("DELETE FROM {tinymce_settings} WHERE name = '%s'", $name);
  db_query("DELETE FROM {tinymce_role} WHERE name = '%s'", $name);
}

/**
 * Return an HTML form for profile configuration.
 */
function tinymce_profile_form_build($edit) {
  $edit = (object) $edit;

  // Only display the roles that currently don't have a tinymce profile. One
  // profile per role.
  $orig_roles = user_roles(FALSE, 'access tinymce');
  $roles = $orig_roles;
  if (arg(3) == 'add') {
    $result = db_query('SELECT DISTINCT(rid) FROM {tinymce_role}');
    while ($data = db_fetch_object($result)) {
      if (!in_array($data->rid, array_keys((array) $edit->rids)) && !form_get_errors()){
        unset($roles[$data->rid]);
      }
    }
    if (!$orig_roles) {
      drupal_set_message(t('You must <a href="!access-control-url">assign</a> at least one role with the \'access tinymce\' permission before creating a profile.', array('!access-control-url' => url('admin/user/access'))), 'error');
    }
    else if (!$roles) {
      drupal_set_message(t('You will not be allowed to create a new profile since all user roles have already been assigned profiles. Either remove an existing tinymce profile from at least one role or assign another role the \'access tinymce\' permission.'), 'error');
    }
    else if (count($orig_roles) != count($roles)) {
      drupal_set_message(t('Not all user roles are shown since they already have tinymce profiles. You must first unassign profiles in order to add them to a new one.'));
    }
    $btn = t('Create profile');
  }
  else {
    $form['old_name'] = array('#type' => 'hidden', '#value' => $edit->name);
    $btn = t('Update profile');
  }

  $form['basic'] = array(
    '#type' => 'fieldset',
    '#title' => t('Basic setup'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE
  );

  $form['basic']['name'] = array(
    '#type' => 'textfield',
    '#title' => t('Profile name'),
    '#default_value' => $edit->name,
    '#size' => 40,
    '#maxlength' => 128,
    '#description' => t('Enter a name for this profile. This name is only visible within the tinymce administration page.'),
    '#required' => TRUE
  );

  $form['basic']['rids'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Roles allowed to use this profile'),
    '#default_value' => array_keys((array) $edit->rids),
    '#options' => $roles,
    '#description' =>  t('Check at least one role. Only roles with \'access tinymce\' permission will be shown here.'),
    '#required' => TRUE
  );

  $form['basic']['default'] = array(
    '#type' => 'select',
    '#title' => t('Default state'),
    '#default_value' => $edit->settings['default'] ? $edit->settings['default'] : 'false',
    '#options' => array('false' => t('disabled'), 'true' => t('enabled')),
    '#description' => t('Default editor state for users in this profile. Users will be able to override this state if the next option is enabled.'),
  );

  $form['basic']['user_choose'] = array(
    '#type' => 'select',
    '#title' => t('Allow users to choose default'),
    '#default_value' => $edit->settings['user_choose'] ? $edit->settings['user_choose'] : 'false',
    '#options' => array('false' => t('false'), 'true' => t('true')),
    '#description' => t('If allowed, users will be able to choose their own TinyMCE default state by visiting their profile page.'),
  );

  $form['basic']['show_toggle'] = array(
    '#type' => 'select',
    '#title' => t('Show disable/enable rich text editor toggle'),
    '#default_value' => $edit->settings['show_toggle'] ? $edit->settings['show_toggle'] : 'true',
    '#options' => array('false' => t('false'), 'true' => t('true')),
    '#description' => t('Whether or not to show the disable/enable rich text editor toggle below the textarea. If false, editor defaults to the global default or user default (see above).'),
  );

  // This line upgrades previous versions of TinyMCE for user who previously selected a theme other than advanced.
  if ($edit->settings['theme'] != 'advanced') $edit->settings['theme'] = 'advanced';

  $form['basic']['theme'] = array(
    '#type' => 'hidden',
    '#value' => $edit->settings['theme'] ? $edit->settings['theme'] : 'advanced'
  );

  $form['basic']['language'] = array(
    '#type' => 'select',
    '#title' => t('Language'),
    '#default_value' => $edit->settings['language'] ? $edit->settings['language'] : 'en',
    '#options' => drupal_map_assoc(array('ar', 'ca', 'cs', 'cy', 'da', 'de', 'el', 'en', 'es', 'fa', 'fi', 'fr', 'fr_ca', 'he', 'hu', 'is', 'it', 'ja', 'ko', 'nb', 'nl', 'nn', 'pl', 'pt', 'pt_br', 'ru', 'ru_KOI8-R', 'ru_UTF-8', 'si', 'sk', 'sv', 'th', 'zh_cn', 'zh_tw', 'zh_tw_utf8')),
    '#description' => t('The language for the TinyMCE interface. Language codes based on the <a href="http://www.loc.gov/standards/iso639-2/englangn.html">ISO-639-2</a> format.')
  );

  $form['basic']['safari_message'] = array(
    '#type' => 'select',
    '#title' => t('Safari browser warning'),
    '#default_value' => $edit->settings['safari_message'] ? $edit->settings['safari_message'] : 'false',
    '#options' => array('false' => t('false'), 'true' => t('true')),
    '#description' => t('TinyMCE support for the Safari web browser is experimental and a warning message is displayed when that browser is detected. You can disable this message here.')
  );

  $form['visibility'] = array(
    '#type' => 'fieldset',
    '#title' => t('Visibility'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE
  );

  $access = user_access('use PHP for block visibility');

  // If the visibility is set to PHP mode but the user doesn't have this block permission, don't allow them to edit nor see this PHP code
  if ($edit->settings['access'] == 2 && !$access) {
    $form['visibility'] = array();
    $form['visibility']['access'] = array(
      '#type' => 'value',
      '#value' => 2
    );
    $form['visibility']['access_pages'] = array(
      '#type' => 'value',
      '#value' => $edit->settings['access_pages']
    );
  }
  else {
    $options = array(t('Show on every page except the listed pages.'), t('Show on only the listed pages.'));
    $description = t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are '!blog' for the blog page and !blog-wildcard for every personal blog. !front is the front page.", array('!blog' => theme('placeholder', 'blog'), '!blog-wildcard' =>  theme('placeholder', 'blog/*'), '!front' => theme('placeholder', '<front>')));

    if ($access) {
      $options[] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
      $description .= t('If the PHP-mode is chosen, enter PHP code between !php. Note that executing incorrect PHP-code can break your Drupal site.', array('!php' => theme('placeholder', '<?php ?>')));
    }
    $form['visibility']['access'] = array(
      '#type' => 'radios',
      '#title' => t('Show tinymce on specific pages'),
      '#default_value' => isset($edit->settings['access']) ? $edit->settings['access'] : 1,
      '#options' => $options
    );
    $form['visibility']['access_pages'] = array(
      '#type' => 'textarea',
      '#title' => t('Pages'),
      '#default_value' => isset($edit->settings['access_pages']) ? $edit->settings['access_pages'] : tinymce_help('admin/settings/tinymce#pages'),
      '#description' => $description
    );
  }

  $form['buttons'] = array(
    '#type' => 'fieldset',
    '#title' => t('Buttons and plugins'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#tree' => TRUE,
    '#theme' => 'tinymce_profile_form_buttons'
  );

  $metadata = _tinymce_get_buttons(FALSE);
  // Generate the button list.
  foreach($metadata as $name => $meta) {
    if (is_array($meta['buttons'])) {
      foreach ($meta['buttons'] as $button) {
        if ($name != 'default') {
          $img_src = drupal_get_path('module', 'tinymce'). "/tinymce/jscripts/tiny_mce/plugins/$name/images/$name.gif";

          //correct for plugins that have more than one button
          if (!file_exists($img_src)) {
            $img_src = drupal_get_path('module', 'tinymce'). "/tinymce/jscripts/tiny_mce/plugins/$name/images/$button.gif";
          }
        }
        else {
          $img_src = drupal_get_path('module', 'tinymce'). "/tinymce/jscripts/tiny_mce/themes/advanced/images/$button.gif";
        }

        $b = file_exists($img_src) ? '<img src="'. base_path() . $img_src .'" title="'. $button .'" style="border: 1px solid grey; vertical-align: middle;" />' : $button;

        if ($name == 'default') {
          $title = $b;
        }
        else {
          $title = $metadata[$name]['longname'] ? $metadata[$name]['longname'] : $name;
          if ($metadata[$name]['infourl']) {
            $title = '<a href="'. $metadata[$name]['infourl'] .'" target="_blank">'. $title .'</a>';
          }
          $title = $b . ' &#8211; '. $title;
        }
        $form_value = $edit->settings['buttons'][$name . '-' . $button];
        $form['buttons'][$name . '-' . $button] = array('#type' => 'checkbox', '#title' => $title, '#default_value' => $form_value);
      }
    }
    else {
      $title = $metadata[$name]['longname'] ? $metadata[$name]['longname'] : $name;
      if ($metadata[$name]['infourl']) {
        $title = '<a href="'. $metadata[$name]['infourl'] .'" target="_blank">'. $title .'</a>';
      }
      $form_value = $edit->settings['buttons'][$name];
      $form['buttons'][$name] = array('#type' => 'checkbox', '#title' => $title, '#default_value' => $form_value);
    }
  }

  $form['appearance'] = array(
    '#type' => 'fieldset',
    '#title' => t('Editor appearance'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE
  );

  $form['appearance']['toolbar_loc'] = array(
    '#type' => 'select',
    '#title' => t('Toolbar location'),
    '#default_value' => $edit->settings['toolbar_loc'],
    '#options' => array('bottom' => t('bottom'), 'top' => t('top')),
    '#description' => t('Show toolbar at the top or bottom of the editor area?')
  );

  $form['appearance']['toolbar_align'] = array(
    '#type' => 'select',
    '#title' => t('Toolbar alignment'),
    '#default_value' => $edit->settings['toolbar_align'],
    '#options' => array('center' => t('center'), 'left' => t('left'), 'right' => t('right')),
    '#description' => t('Align tool icons left, center, or right within the toolbar.')
  );

  $form['appearance']['path_loc'] = array(
    '#type' => 'select',
    '#title' => t('Path location'),
    '#default_value' => $edit->settings['path_loc'] ? $edit->settings['path_loc'] : 'bottom',
    '#options' => array('none' => t('none'), 'top' => t('top'), 'bottom' => t('bottom')),
    '#description' => t('Path to html elements (i.e. "body>table>tr>td"). Show at top, bottom, or not at all.')
  );

  $form['appearance']['resizing'] = array(
    '#type' => 'select',
    '#title' => t('Enable resizing button'),
    '#default_value' => isset($edit->settings['resizing']) ? $edit->settings['resizing'] : 'true',
    '#options' => array('false' => t('false'), 'true' => t('true')),
    '#description' => t(' This option gives you the ability to enable/disable the resizing button. If enabled the <strong>Path location toolbar</strong> must be set to "top" or "bottom" in order to display the resize icon.')
  );

  $form['appearance']['block_formats'] = array(
    '#type' => 'textfield',
    '#title' => t('Block formats'),
    '#default_value' => $edit->settings['block_formats'] ? $edit->settings['block_formats'] : 'p,address,pre,h1,h2,h3,h4,h5,h6',
    '#size' => 40,
    '#maxlength' => 250,
    '#description' => t('Comma separated list of HTML block formats. You can only remove elements, not add.')
  );

  $form['output'] = array(
    '#type' => 'fieldset',
    '#title' => t('Cleanup and output'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE
  );

  $form['output']['verify_html'] = array(
    '#type' => 'select',
    '#title' => t('Verify HTML'),
    '#default_value' => $edit->settings['verify_html'],
    '#options' => array('false' => t('false'), 'true' => t('true')),
    '#description' => t('Should the HTML contents be verified or not? Verifying will strip &lt;head&gt tags, so choose false if you will be editing full page HTML.')
  );

  $form['output']['preformatted'] = array(
    '#type' => 'select',
    '#title' => t('Preformatted'),
    '#default_value' => $edit->settings['preformatted'],
    '#options' => array('false' => t('false'), 'true' => t('true')),
    '#description' => t('If this option is set to true, the editor will insert TAB characters on tab and preserve other whitespace characters just like a PRE HTML element does.')
  );

  $form['output']['convert_fonts_to_spans'] = array(
    '#type' => 'select',
    '#title' => t('Convert &lt;font&gt; tags to styles'),
    '#default_value' => $edit->settings['convert_fonts_to_spans'],
    '#options' => array('true' => t('true'), 'false' => t('false')),
    '#description' => t('If you set this option to true, font size, font family, font color and font background color will be replaced by inline styles.')
  );

  $form['output']['remove_linebreaks'] = array(
     '#type' => 'select',
     '#title' => t('Remove linebreaks'),
     '#default_value' => $edit->settings['remove_linebreaks'],
     '#options' => array('true' => 'true', 'false' => 'false'),
     '#description' => t('Set this option to false to prevent TinyMCE from removing linebreaks from existing nodes.  True avoids conflicts with some filters.')
  );

  $form['output']['apply_source_formatting'] = array(
     '#type' => 'select',
     '#title' => t('Apply source formatting'),
     '#default_value' => $edit->settings['apply_source_formatting'],
     '#options' => array('true' => 'true', 'false' => 'false'),
     '#description' => t('This option makes TinyMCE apply source formatting.  Set this to true for a cleaner HTML source.  Choose false to avoid conflicts with some filters.')
  );

  $form['css'] = array(
    '#type' => 'fieldset',
    '#title' => t('CSS'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE
  );

  $form['css']['css_setting'] = array(
    '#type' => 'select',
    '#title' => t('Editor CSS'),
    '#default_value' => $edit->settings['css_setting'] ? $edit->settings['css_setting'] : 'theme',
    '#options' => array('theme' => t('use theme css'), 'self' => t('define css'), 'none' => t('tinyMCE default')),
    '#description' => t('Defines the CSS to be used in the editor area.<br />use theme css - load style.css from current site theme.<br/>define css - enter path for css file below.<br />tinyMCE default - uses default CSS from editor.')
  );

  $form['css']['css_path'] = array(
    '#type' => 'textfield',
    '#title' => t('CSS path'),
    '#default_value' => $edit->settings['css_path'],
    '#size' => 40,
    '#maxlength' => 255,
    '#description' => t('Enter path to CSS file (<em>example: "css/editor.css"</em>) or a list of css files seperated by a comma (<em>example: /themes/garland/style.css,http://domain.com/customMCE.css</em>).<br />Macros: %h (host name: http://www.example.com/), %t (path to theme: theme/yourtheme/)<br />Be sure to select "define css" above.')
  );

  $form['css']['css_classes'] = array(
    '#type' => 'textfield',
    '#title' => t('CSS classes'),
    '#default_value' => $edit->settings['css_classes'],
    '#size' => 40,
    '#maxlength' => 255,
    '#description' => t('Adds CSS classes to the "styles" droplist. Format is: &lt;title&gt;=&lt;class&gt;;<br/> Example: Header 1=header1;Header 2=header2;Header 3=header3 (note: no trailing \';\')<br />Leave blank to automatically import list of CSS classes from style sheet.')
  );

  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => $btn
  );

  return $form;
}

/**
 * Return an HTML form for profile configuration.
 */
function tinymce_profile_form($edit) {

  $output .= drupal_get_form('tinymce_profile_form_build', $edit);

  return $output;
}

/**
 * Layout for the buttons in the tinymce profile form
 */
function theme_tinymce_profile_form_buttons($form) {
  $buttons = array();

  // Flatten forms array
  foreach (element_children($form) as $key) {
    $buttons[] = drupal_render($form[$key]);
  }

  //split checkboxes into rows with 3 columns
  $total = count($buttons);
  $rows = array();
  for ($i = 0; $i < $total; $i++) {
    $row = array();
    $row[] = array('data' => $buttons[$i]);
    $row[] = array('data' => $buttons[++$i]);
    $row[] = array('data' => $buttons[++$i]);
    $rows[] = $row;
  }

  $output = theme('table', array(), $rows, array('width' => '100%'));

  return $output;
}

/**
 * Load all profiles. Just load one profile if $name is passed in.
 */
function tinymce_profile_load($name = '') {
  static $profiles = array();

  if (!$profiles) {
    $roles = user_roles();
    $result = db_query('SELECT * FROM {tinymce_settings}');
    while ($data = db_fetch_object($result)) {
      $data->settings = unserialize($data->settings);
      $result2 = db_query("SELECT rid FROM {tinymce_role} WHERE name = '%s'", $data->name);
      $role = array();
      while ($r = db_fetch_object($result2)) {
        $role[$r->rid] = $roles[$r->rid];
      }
      $data->rids = $role;

      $profiles[$data->name] = $data;
    }
  }

  return ($name ? $profiles[$name] : $profiles);
}

/**
 * Controller for tinymce profiles.
 */
function tinymce_profile_overview() {
  $output = '';

  $profiles = tinymce_profile_load();
  if ($profiles) {
    $roles = user_roles();
    $header = array(t('Profile'), t('Roles'), t('Operations'));
    foreach ($profiles as $p) {
      $rows[] = array(array('data' => $p->name, 'valign' => 'top'), array('data' => implode("<br />\n", $p->rids)), array('data' => l(t('edit'), 'admin/settings/tinymce/edit/'. urlencode($p->name)) . ' '. l(t('delete'), 'admin/settings/tinymce/delete/'. urlencode($p->name)), 'valign' => 'top'));
    }
    $output .= theme('table', $header, $rows);
    $output .= t('<p><a href="!create-profile-url">Create new profile</a></p>', array('!create-profile-url' => url('admin/settings/tinymce/add')));
  }
  else {
    drupal_set_message(t('No profiles found. Click here to <a href="!create-profile-url">create a new profile</a>.', array('!create-profile-url' => url('admin/settings/tinymce/add'))));
  }

  return $output;
}

/**
 * Save a profile to the database.
 */
function tinymce_profile_save($edit) {
  db_query("DELETE FROM {tinymce_settings} WHERE name = '%s' or name = '%s'", $edit['name'], $edit['old_name']);
  db_query("DELETE FROM {tinymce_role} WHERE name = '%s' or name = '%s'", $edit['name'], $edit['old_name']);
  db_query("INSERT INTO {tinymce_settings} (name, settings) VALUES ('%s', '%s')", $edit['name'], serialize($edit));
  foreach ($edit['rids'] as $rid => $value) {
    db_query("INSERT INTO {tinymce_role} (name, rid) VALUES ('%s', %d)", $edit['name'], $rid);
  }

  // if users can't set their own defaults, make sure to remove $user->tinymce_status so their default doesn't override the main default
  if ($edit['user_choose'] == 'false') {
    global $user;
    user_save($user, array('tinymce_status' => NULL));
  }
}

/**
 * Profile validation.
 */
function tinymce_profile_validate($edit) {
  $errors = array();

  if (!$edit['name']) {
    $errors['name'] = t('You must give a profile name.');
  }

  if (!$edit['rids']) {
    $errors['rids'] = t('You must select at least one role.');
  }

  foreach ($errors as $name => $message) {
    form_set_error($name, $message);
  }

  return count($errors) == 0;
}

/********************************************************************
 * Module Functions :: Private
 ********************************************************************/

/**
 * Determine if TinyMCE has permission to be used on the current page.
 *
 * @return
 *   TRUE if can render, FALSE if not allowed.
 */
function _tinymce_page_match($edit) {
  $page_match = FALSE;

  // Kill TinyMCE if we're editing a textarea with PHP in it!
  // PHP input formats are #2 in the filters table.
  if (is_numeric(arg(1)) && arg(2) == 'edit') {
    $node = node_load(arg(1));
    if ($node->format == 2) {
      return FALSE;
    }
  }

  if ($edit->settings['access_pages']) {
    // If the PHP option wasn't selected
    if ($edit->settings['access'] < 2) {
      $path = drupal_get_path_alias($_GET['q']);
      $regexp = '/^('. preg_replace(array('/(\r\n?|\n)/', '/\\\\\*/', '/(^|\|)\\\\<front\\\\>($|\|)/'), array('|', '.*', '\1'. preg_quote(variable_get('site_frontpage', 'node'), '/') .'\2'), preg_quote($edit->settings['access_pages'], '/')) .')$/';
      $page_match = !($edit->settings['access'] xor preg_match($regexp, $path));
    }
    else {
      $page_match = drupal_eval($edit->settings['access_pages']);
    }
  }
  // No pages were specified to block so show on all
  else {
    $page_match = TRUE;
  }

  return $page_match;
}

function tinymce_user_get_profile($account) {
  $profile_name = db_result(db_query('SELECT s.name FROM {tinymce_settings} s INNER JOIN {tinymce_role} r ON r.name = s.name WHERE r.rid IN (%s)', implode(',', array_keys($account->roles))));
  if ($profile_name){
    return tinymce_profile_load($profile_name);
  }
  else {
    return FALSE;
  }
}

function tinymce_user_get_status($user, $profile){
  $settings = $profile->settings;

  if ($settings['user_choose']) {
    $status = isset($user->tinymce_status) ? $user->tinymce_status : (isset($settings['default']) ? $settings['default'] : 'false');
  }
  else {
    $status = isset($settings['default']) ? $settings['default'] : 'false';
  }

  return $status;
}