<?php
// $Id: pageear.module,v 1.5.2.13 2009-11-14 03:20:44 manfer Exp $

/**
 * @file
 * Shows configurable peel away ad (magic corner, peelad) to your website.
 *
 * Acknowledgement: Some of the code and way of doing things were borrowed from corner and block modules.
 */

define('PAGEEAR_PATH_IMAGES', 'pageturn');

/**
 * Implementation of hook_help().
 */
function pageear_help($section) {
  switch ($section) {
    case 'admin/modules#description':
      return t('Add a peel away ad (magic corner, peelad) to your website.');
    case 'admin/build/pageear':
      $params = array('!add_new' => l(t('add pageear page'), 'admin/build/pageear/add'), '%edit' => t('edit'));
      return t('Pageears are peelads which are shown at the top of pages - in the left or right \'corner\'.  Create new pageears on the !add_new or edit existing pageears by clicking the %edit link next to each one.', $params);
  }
}

/**
 * Implementation of hook_perm().
 */
function pageear_perm() {
  return array('administer pageears', 'use PHP for pageear visibility');
}

/**
 * Implementation of hook_menu().
 */
function pageear_menu($may_cache) {

  $items = array();

  if ($may_cache) {

    $items[] = array(
      'path' => 'admin/build/pageear',
      'title' => t('Pageears'),
      'description' => t('Edit pageears, how they look and where they appear on the site.'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('pageear_list_form'),
      'access' => user_access('administer pageears'),
    );
    $items[] = array(
      'path' => 'admin/build/pageear/list',
      'title' => t('List'),
      'type' => MENU_DEFAULT_LOCAL_TASK,
      'weight' => -10,
    );
    $items[] = array(
      'path' => 'admin/build/pageear/add',
      'title' => t('Add pageear'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('pageear_admin_edit', 'add', NULL),
      'access' => user_access('administer pageears'),
      'type' => MENU_LOCAL_TASK,
    );
    $items[] = array(
      'path' => 'admin/build/pageear/edit',
      'title' => t('Edit pageear'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('pageear_admin_edit', 'edit'),
      'access' => user_access('administer pageears'),
      'type' => MENU_CALLBACK,
    );
    $items[] = array(
      'path' => 'admin/build/pageear/clone',
      'title' => t('Clone pageear'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('pageear_admin_edit', 'clone'),
      'access' => user_access('administer pageears'),
      'type' => MENU_CALLBACK,
    );
    $items[] = array(
      'path' => 'admin/build/pageear/delete',
      'title' => t('Delete pageear'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('pageear_admin_delete'),
      'access' => user_access('administer pageears'),
      'type' => MENU_CALLBACK,
    );
    $items[] = array(
      'path' => 'admin/build/pageear/disable',
      'title' => t('Disables pageear'),
      'callback' => 'pageear_admin_disable',
      'access' => user_access('administer pageears'),
      'type' => MENU_CALLBACK,
    );
    $items[] = array(
      'path' => 'admin/build/pageear/enable',
      'title' => t('Enables pageear'),
      'callback' => 'pageear_admin_enable',
      'access' => user_access('administer pageears'),
      'type' => MENU_CALLBACK,
    );

  }
  else {

    $num_active = variable_get('numEnabledPageears', 0);
    $current_topleft_pageear = FALSE;
    $current_topright_pageear = FALSE;
    $current_bottomleft_pageear = FALSE;
    $current_bottomright_pageear = FALSE;

    // Add the JS only if we have any active pageear.
    // Test if pageear must be displayed in this node
    // and prepare it for hook_footer.
    if ($num_active) {

      // Fetch all active pageears.
      // TODO: cache?
      $pageears = array();
      $result = db_query("SELECT * FROM {pageears} WHERE status = 1 ORDER BY weight ASC, peid ASC");
      while ($row = db_fetch_object($result)) {
        $pageears[] = $row;
      }

      global $user;
      global $locale;
      $rids = array_keys($user->roles);
      $lang_name = $locale;

      // Pageear for the current path/role/language. If more than one are configured for this path/role/language, only first would be presented.
      foreach ($pageears as $pageear) {

        if ($pageear->peelPosition == 'topleft' && $current_topleft_pageear) {
          continue;
        }

        if ($pageear->peelPosition == 'topright' && $current_topright_pageear) {
          continue;
        }

        if ($pageear->peelPosition == 'bottomleft' && $current_bottomleft_pageear) {
          continue;
        }

        if ($pageear->peelPosition == 'bottomright' && $current_bottomright_pageear) {
          continue;
        }

        // Get the settings
        $vis_languages = explode(',', $pageear->languages);
        $vis_roles = explode(',', $pageear->roles);
        $vis_vis = $pageear->visibility;
        $vis_pages = $pageear->pages;

        // Match languages
        if (module_exists('locale') && count(array_filter($vis_languages))) {
          $lang_enabled = in_array($lang_name, $vis_languages);
        }
        else {
          $lang_enabled = TRUE;
        }

        // Match roles
        if (count(array_filter($vis_roles))) {
          $role_enabled = count(array_intersect($vis_roles, $rids)) ? TRUE : FALSE;
        }
        else {
          $role_enabled = TRUE;
        }

        // Match path if necessary
        if ($vis_pages) {
          if ($vis_vis < 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($vis_pages, '/')) .')$/';
            // Compare with the internal and path alias (if any).
            $page_match = preg_match($regexp, $path);
            if ($path != $_GET['q']) {
              $page_match = $page_match || preg_match($regexp, $_GET['q']);
            }
            // When $vis_vis has a value of 0, the pageear is displayed on
            // all pages except those listed in $vis_pages. When set to 1, it
            // is displayed only on those pages listed in $vis_pages.
            $page_match = !($vis_vis xor $page_match);
          }
          else {
            $page_match = drupal_eval($vis_pages);
          }
        }
        else {
          $page_match = TRUE;
        }

        // Generate pageears if enabled for current path, role and language
        if ($lang_enabled === TRUE && $role_enabled === TRUE && $page_match) {

          // Prepare the pageear object to adjust it to pageTurn javascript variable needs
          // and store it on persistent variable currentPageear
          switch ($pageear->peelPosition) {
            case 'topleft':
              $current_topleft_pageear = pageear_prepare($pageear);
              break;
            case 'topright':
              $current_topright_pageear = pageear_prepare($pageear);
              break;
            case 'bottomleft':
              $current_bottomleft_pageear = pageear_prepare($pageear);
              break;
            case 'bottomright':
              $current_bottomright_pageear = pageear_prepare($pageear);
              break;
            default:
              break;
          }

          // if all pageears are just set, there is not need to continue
          // analyzing the rest of pageears. Write pageears and return.
          if ($current_topleft_pageear && $current_topright_pageear && $current_bottomleft_pageear && $current_bottomright_pageear) {
            write_pageears($current_topleft_pageear, $current_topright_pageear, $current_bottomleft_pageear, $current_bottomright_pageear);
            return;
          }

        }
      }

      // All enabled pageears have been analyzed. Write pageears.
      if ($current_topleft_pageear || $current_topright_pageear || $current_bottomleft_pageear || $current_bottomright_pageear) {
        write_pageears($current_topleft_pageear, $current_topright_pageear, $current_bottomleft_pageear, $current_bottomright_pageear);
      }

    }


  }

  return $items;

}

/**
 * Output pageears.
 */
function write_pageears($current_topleft_pageear = FALSE, $current_topright_pageear = FALSE, $current_bottomleft_pageear = FALSE, $current_bottomright_pageear = FALSE) {

  if ($current_topleft_pageear || $current_topright_pageear || $current_bottomleft_pageear || $current_bottomright_pageear) {

    $path = drupal_get_path('module', 'pageear');
    drupal_add_js($path .'/pageturn/swfobject.js', 'module', 'header', FALSE, FALSE);
    drupal_add_js($path .'/pageturn/pageTurn.js', 'module', 'header', FALSE, FALSE);
    drupal_add_css($path .'/pageturn/pageTurn.css', 'module', 'all', TRUE);

    // Output pageears if there is one for current node
    $js = "flagSwf = '". $base_url . base_path() . drupal_get_path('module', 'pageear') ."/pageturn/flag.swf';\n";
    $js .= "peelSwf = '". $base_url . base_path() . drupal_get_path('module', 'pageear') ."/pageturn/turn.swf';\n";

    if ($current_topleft_pageear) {
      $js .= "topleft_pageearvars = {\n";
      foreach ($current_topleft_pageear as $key => $value) {
        $js .= $key .": escape(". drupal_to_js($value) ."),\n";
      }
      $js = substr_replace($js, "", -2, 1);
      $js .= "};\n";

      $js .= "topleft_pageear = new pageear(topleft_pageearvars);\n";
      $js .= "topleft_pageear.write();\n";
    }

    if ($current_topright_pageear) {
      $js .= "topright_pageearvars = {\n";
      foreach ($current_topright_pageear as $key => $value) {
        $js .= $key .": escape(". drupal_to_js($value) ."),\n";
      }
      $js = substr_replace($js, "", -2, 1);
      $js .= "};\n";

      $js .= "topright_pageear = new pageear(topright_pageearvars);\n";
      $js .= "topright_pageear.write();\n";
    }

    if ($current_bottomleft_pageear) {
      $js .= "bottomleft_pageearvars = {\n";
      foreach ($current_bottomleft_pageear as $key => $value) {
        $js .= $key .": escape(". drupal_to_js($value) ."),\n";
      }
      $js = substr_replace($js, "", -2, 1);
      $js .= "};\n";

      $js .= "bottomleft_pageear = new pageear(bottomleft_pageearvars);\n";
      $js .= "bottomleft_pageear.write();\n";
    }

    if ($current_bottomright_pageear) {
      $js .= "bottomright_pageearvars = {\n";
      foreach ($current_bottomright_pageear as $key => $value) {
        $js .= $key .": escape(". drupal_to_js($value) ."),\n";
      }
      $js = substr_replace($js, "", -2, 1);
      $js .= "};\n";

      $js .= "bottomright_pageear = new pageear(bottomright_pageearvars);\n";
      $js .= "bottomright_pageear.write();\n";
    }

    drupal_add_js($js, 'inline', 'footer');

  }

}

/**
 * Prepares a pageear object prior to being use in JS.
 *
 * @param $pageear A pageear object
 * @return A prepared pageear object
 */
function pageear_prepare($pageear) {

  // No need to carry over these to JS
  unset($pageear->peid);
  unset($pageear->name);
  unset($pageear->status);
  unset($pageear->roles);
  unset($pageear->visibility);
  unset($pageear->pages);
  unset($pageear->languages);
  unset($pageear->weight);

  // Construct the image and sound paths
  $pageear->waitURL       = base_path() . $pageear->waitURL;
  $pageear->smallURL      = base_path() . $pageear->smallURL;
  $pageear->bigURL        = base_path() . $pageear->bigURL;
  $pageear->loadSoundURL  = ($pageear->loadSoundURL == '') ? '' : base_path() . $pageear->loadSoundURL;
  $pageear->openSoundURL  = ($pageear->openSoundURL == '') ? '' : base_path() . $pageear->openSoundURL;
  $pageear->closeSoundURL = ($pageear->closeSoundURL == '') ? '' : base_path() . $pageear->closeSoundURL;

  // Convert automaticOpen, automaticClose from seconds to milliseconds
  $pageear->automaticOpen  = $pageear->automaticOpen * 1000 .'';
  $pageear->automaticClose = $pageear->automaticClose * 1000 .'';

  // Check plain link and text on close button
  $pageear->link = check_plain($pageear->link);
  $pageear->text_on_close_button = check_plain($pageear->text_on_close_button);

  return  $pageear;

}

/**
 * Loading one, more or all pageears.
 */
function pageear_load($peid = NULL) {
  static $pageears;

  if (!is_array($pageears)) {

    if (is_numeric($peid)) {
      $pageear = db_fetch_object(db_query("SELECT * FROM {pageears} WHERE peid = %d", $peid));
      return $pageear;

    }
    else {
      $result = db_query("SELECT * FROM {pageears} ORDER BY weight ASC");
      $pageears = array();

      while ($pageear = db_fetch_object($result)) {
        $pageears[$pageear->peid] = $pageear;
      }
    }
  }

  if (is_array($pageears)) {

    if (is_numeric($peid)) {
      return $pageears[$peid];
    }
    elseif (is_array($peid)) {
      return array_intersect_key($pageears, array_flip($peid));
    }
    else {
      return $pageears;
    }
  }
}


/**
 * Get the default values of a new pageear
 */
function pageear_get_default() {

  $default = new stdClass();

  $default->peid                 = 0;
  $default->weight               = 0;
  $default->status               = 1;
  $default->name                 = '';
  $default->flagStyle            = 'style1';
  $default->peelStyle            = 'style1';
  $default->peelPosition         = 'topright';
  $default->peelPositionModel    = 'absolute';
  $default->flagWidth            = 100;
  $default->flagHeight           = 100;
  $default->peelWidth            = 500;
  $default->peelHeight           = 500;
  $default->waitEnable           = 0;
  $default->waitURL              = drupal_get_path('module', 'pageear') .'/pageturn/wait.gif';
  $default->waitWidth            = 42;
  $default->waitHeight           = 42;
  $default->smallURL             = drupal_get_path('module', 'pageear') .'/pageturn/small.jpg';
  $default->bigURL               = drupal_get_path('module', 'pageear') .'/pageturn/big.jpg';
  $default->mirror               = 1;
  $default->inTransition         = 'none';
  $default->transitionDuration   = 4;
  $default->peelColor            = 'custom';
  $default->peelColorStyle       = 'gradient';
  $default->redValue             = 255;
  $default->greenValue           = 255;
  $default->blueValue            = 255;
  $default->linkEnabled          = 1;
  $default->linkTarget           = '_blank';
  $default->link                 = 'http://www.drupal.org/';
  $default->loadSoundURL         = '';
  $default->openSoundURL         = '';
  $default->closeSoundURL        = '';
  $default->flagSpeed            = 4;
  $default->peelSpeed            = 4;
  $default->automaticOpen        = 0;
  $default->automaticClose       = 0;
  $default->close_button_enable  = 0;
  $default->text_on_close_button = 'close';
  $default->close_redValue       = 255;
  $default->close_greenValue     = 255;
  $default->close_blueValue      = 255;
  $default->languages            = '';
  $default->roles                = '';
  $default->visibility           = 0;
  $default->pages                = '';

  return (object) $default;

}

/**
 * Returns either an array of select options or, if a key is specified, the value for the specific key in the given array.
 *
 * @param $type
 * @param $key A key corresponding to a specific entry in one of the options arrays
 * @return mixed
 */
function pageear_get_options($type, $key = '') {
  switch ($type) {
    case 'flagStyle':
      $options = array(
        'style1' => t('Style') .' 1',
        'style2' => t('Style') .' 2',
        'style3' => t('Style') .' 3',
      );
      break;
    case 'peelStyle':
      $options = array(
        'style1' => t('Style') .' 1',
        'style2' => t('Style') .' 2',
        'style3' => t('Style') .' 3',
      );
      break;
    case 'peelPosition':
      $options = array(
        'topleft'     => t('Top left'),
        'topright'    => t('Top right'),
        'bottomleft'  => t('Bottom left'),
        'bottomright' => t('Bottom right'),
      );
      break;
    case 'peelPositionModel':
      $options = array(
        'absolute'  => t('absolute'),
        'fixed'     => t('fixed')
      );
      break;
    case 'inTransition':
      $options = array(
        'none'          => t('(disabled)'),
        'Blinds'        => t('Blinds'),
        'Fade'          => t('Fade'),
        'Fly'           => t('Fly'),
        'Iris'          => t('Iris'),
        'Photo'         => t('Photo'),
        'Rotate'        => t('Rotate'),
        'Squeeze'       => t('Squeeze'),
        'Wipe'          => t('Wipe'),
        'PixelDissolve' => t('PixelDissolve'),
        'Zoom'          => t('Zoom')
      );
      break;
    case 'peelColor':
      $options = array(
        'golden' => t('Golden'),
        'silver' => t('Silver'),
        'custom' => t('Custom')
      );
      break;
    case 'peelColorStyle':
      $options = array(
        'flat'     => t('Flat'),
        'gradient' => t('Gradient')
      );
      break;
    case 'linkTarget':
      $options = array(
        '_self'  => t('Same window'),
        '_blank' => t('New window')
      );
      break;
    default:
      $options = array();
  }

  if ($key == '') {
    return $options;
  }
  else {
    return $options[$key];
  }
}

/**
 * Menu callback for admin/build/pageear.
 * List of pageears.
 */
function pageear_list_form() {

  $pageears = pageear_load();

  if (count($pageears)) {

    foreach ($pageears as $pageear) {
      $form['pageears'][$pageear->peid] = array(
        '#tree' => TRUE,
      );
      $form['pageears'][$pageear->peid]['peid'] = array(
        '#type' => 'hidden',
        '#value' => $pageear->peid,
      );
      $form['pageears'][$pageear->peid]['name'] = array(
        '#value' => check_plain($pageear->name),
      );
      $form['pageears'][$pageear->peid]['link'] = array(
        '#value' => check_plain($pageear->link),
      );
      $form['pageears'][$pageear->peid]['peelPosition'] = array(
        '#value' => pageear_get_options('peelPosition', $pageear->peelPosition),
      );
      $form['pageears'][$pageear->peid]['status'] = array(
        '#type' => 'checkbox',
        '#default_value' => (bool) (isset($form_state['pageears'][$pageear->peid]['status']) ? $form_state['pageears'][$pageear->peid]['status'] : $pageear->status),
      );
      $form['pageears'][$pageear->peid]['weight'] = array(
        '#type' => 'weight',
        '#delta' => 50,
        '#default_value' => isset($form_state['pageears'][$pageear->peid]['weight']) ? $form_state['pageears'][$pageear->peid]['weight'] : $pageear->weight,
      );
      $form['pageears'][$pageear->peid]['clone'] = array(
        '#value' => l(t('clone'), 'admin/build/pageear/clone/'. $pageear->peid),
      );
      $form['pageears'][$pageear->peid]['edit'] = array(
        '#value' => l(t('edit'), 'admin/build/pageear/edit/'. $pageear->peid),
      );
      $form['pageears'][$pageear->peid]['delete'] = array(
        '#value' => l(t('delete'), 'admin/build/pageear/delete/'. $pageear->peid),
      );
    }

    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save configuration'),
    );

  }
  else {
    $form['empty'] = array('#value' => t('There are no pageears yet. !Add_new a pageear first.', array('!Add_new' => l(t('Add'), 'admin/build/pageear/add'))));
  }

  return $form;
}

/**
 * Theme: List of pageears.
 */
function theme_pageear_list_form($form) {

  $path = drupal_get_path('module', 'pageear');
  drupal_add_css($path .'/pageear-admin.css', 'module', 'all', TRUE);

  $header = array(
    t('Pageear'),
    t('Link'),
    t('Position'),
    array('data' => t('Enabled'), 'class' => 'checkbox'),
    t('Weight'),
    array('data' => t('Operations'), 'colspan' => '3'),
  );

  $pageears = array();

  foreach (element_children($form['pageears']) as $peid) {

    $pageears[] = array(
      'data' => array(
        drupal_render($form['pageears'][$peid]['name']),
        drupal_render($form['pageears'][$peid]['link']),
        drupal_render($form['pageears'][$peid]['peelPosition']),
        array(
          'data' => drupal_render($form['pageears'][$peid]['status']),
          'class' => 'checkbox'
        ),
        drupal_render($form['pageears'][$peid]['weight']),
        drupal_render($form['pageears'][$peid]['clone']),
        drupal_render($form['pageears'][$peid]['edit']),
        drupal_render($form['pageears'][$peid]['delete']),
      ),
      'class' => $form['pageears'][$peid]['status']['#value'] ? 'enabled' : 'disabled',
    );
  }

  $output = '';

  if (count($pageears)) {
    $output .= theme('table', $header, $pageears, $attributes = array('class' => 'pageear-admin-list'), NULL);
  }

  $output .= drupal_render($form);

  return $output;
}

/**
 * Submit: List of pageears.
 */
function pageear_list_form_submit($form_id, $form_values) {

  $num_enabled_pageears = 0;

  // for each pageear update its status and its weight.
  foreach ($form_values as $peid) {
    if (is_array($peid)) {

      if ($peid['status']) {
        $num_enabled_pageears++;
      }

      $sql = "UPDATE {pageears} SET";
      $sql .= " weight = '%d', status = '%d'";
      $sql .= " WHERE peid = %d";
      db_query($sql,
        $peid['weight'],
        $peid['status'],
        $peid['peid']
      );

    }
  }

  // Update the persistent variable numEnabledPageears that tracks number of pageears enabled
  variable_set('numEnabledPageears', $num_enabled_pageears);

}


/**
 * Menu callback; displays the pageear configuration form.
 *
 * Using the same form for three different operations ($op):
 * - 'edit': edit an existing pageear (default)
 * - 'add': add a new pageear
 * - 'clone': clone an existing pageear
 */
function pageear_admin_edit($op = 'edit', $peid) {

  if ($op == 'add' || !$peid) {
    $pageear = pageear_get_default();
  }
  else {
    $pageear = pageear_load($peid);
  }

  if ($op == 'clone') {
    $pageear->peid = 0;
  }

  // Add Farbtastic color picker
  drupal_add_css('misc/farbtastic/farbtastic.css', 'module', 'all', TRUE);
  drupal_add_js('misc/farbtastic/farbtastic.js', 'module', 'header', FALSE, TRUE);

  $form = array();

  $form['#attributes'] = array('enctype' => "multipart/form-data");

  $form['peid'] = array(
    '#type' => 'value',
    '#value' => $pageear->peid,
  );

  // Info
  $form['info'] = array(
    '#type' => 'fieldset',
    '#title' => t('Pageear info'),
    '#collapsible' => TRUE,
  );

  $form['info']['status'] = array(
    '#type' => 'checkbox',
    '#title' => t('Enable pageear'),
    '#default_value' => $pageear->status,
    '#description' => t('If this setting is enabled, the current pageear is shown on the configured pages (you can edit visibility settings below).'),
  );

  // previous status of this pageear before starting configuration
  $form['info']['previous_status'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->status,
  );

  $form['info']['name'] = array(
    '#type' => 'textfield',
    '#title' => t('Pageear name'),
    '#default_value' => $pageear->name,
    '#required' => TRUE,
    '#maxlength' => 64,
    '#size' => 40,
  );
  // End Info

  // Details
  $form['details'] = array(
    '#type' => 'fieldset',
    '#title' => t('Pageear details'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Position settings.
  $form['details']['position_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Position Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Set position of pageear ( topleft, topright, bottomleft or bottomright).
  $form['details']['position_settings']['peelPosition'] = array(
    '#type' => 'radios',
    '#title' => t('Corner'),
    '#description' => t('In what corner the ad will be displayed.'),
    '#options' => pageear_get_options('peelPosition'),
    '#default_value' => $pageear->peelPosition,
    '#required' => TRUE,
    '#attributes' => array('onclick' => 'checkPeelPosition()'),
  );

  // Disable absolute position model if pageear is set on bottom corner
  $peel_position_check_js = "function checkPeelPosition() {\n";
  $peel_position_check_js .= "(function($) {\n";
  $peel_position_check_js .= "if ($('#edit-peelPosition-bottomleft-wrapper label input').attr('checked') || $('#edit-peelPosition-bottomright-wrapper label input').attr('checked')) {\n";
  $peel_position_check_js .= "$('#edit-peelPositionModel-absolute-wrapper label input').attr('disabled', true);\n";
  $peel_position_check_js .= "$('#edit-peelPositionModel-fixed-wrapper label input').attr('checked', true);\n";
  $peel_position_check_js .= "} else {\n";
  $peel_position_check_js .= "$('#edit-peelPositionModel-absolute-wrapper label input').removeAttr('disabled');\n";
  $peel_position_check_js .= "}\n";
  $peel_position_check_js .= "}) (jQuery);\n";
  $peel_position_check_js .= "}";

  drupal_add_js($peel_position_check_js, 'inline');

  // Set position model of peageear ( absolute | fixed ).
  $form['details']['position_settings']['peelPositionModel'] = array(
    '#type' => 'radios',
    '#title' => t('Position Model'),
    '#description' => t('The CSS Position model you would prefer to use.'),
    '#options' => pageear_get_options('peelPositionModel'),
    '#default_value' => $pageear->peelPositionModel,
    '#required' => TRUE,
  );

  $peel_position_model_ini_js = "(function($){\n";
  $peel_position_model_ini_js .= "$(document).ready(function() {\n";
  $peel_position_model_ini_js .= "if ($('#edit-peelPosition-bottomleft-wrapper label input').attr('checked') || $('#edit-peelPosition-bottomright-wrapper label input').attr('checked')) {\n";
  $peel_position_model_ini_js .= "$('#edit-peelPositionModel-absolute-wrapper label input').attr('disabled', true);\n";
  $peel_position_model_ini_js .= "}\n";
  $peel_position_model_ini_js .= "});\n";
  $peel_position_model_ini_js .= "}) (jQuery);";

  drupal_add_js($peel_position_model_ini_js, 'inline');
  // End Position settings.


  // Wait settings.
  $form['details']['wait_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Wait Icon Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  $form['details']['wait_settings']['waitEnable'] = array(
    '#type' => 'checkbox',
    '#title' => t('Enable wait icon'),
    '#default_value' => $pageear->waitEnable,
    '#description' => t('If this setting is enabled, a wait icon will be displayed while pageear is loading.'),
  );

  // Set wait icon width
  $form['details']['wait_settings']['waitWidth'] = array(
    '#type' => 'textfield',
    '#title' => t('Wait Icon Width'),
    '#required' => TRUE,
    '#default_value' => $pageear->waitWidth,
    '#maxlength' => 3,
    '#size' => 8,
  );

  // Set wait icon height
  $form['details']['wait_settings']['waitHeight'] = array(
    '#type' => 'textfield',
    '#title' => t('Wait Icon Height'),
    '#required' => TRUE,
    '#default_value' => $pageear->waitHeight,
    '#maxlength' => 3,
    '#size' => 8,
  );

  // URL to wait icon.
  $form['details']['wait_settings']['waitURL'] = array(
    '#type' => 'item',
    '#title' => t('Wait icon'),
    '#value' => check_plain($pageear->waitURL),
  );

  $form['details']['wait_settings']['waitURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an image to show while pageear is loading (most common an animated GIF, Wait Icon Width x Wait Icon Height pixels).'),
    '#tree' => FALSE,
    '#size' => 40,
  );
  // End wait settings.


  // Style settings.
  $form['details']['style_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Style Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Style of flag ('style1' | 'style2').
  $form['details']['style_settings']['flagStyle'] = array(
    '#type' => 'select',
    '#title' => t('Flag Style'),
    '#options' => pageear_get_options('flagStyle'),
    '#default_value' => $pageear->flagStyle,
    '#required' => TRUE,
  );

  // Style of peel ('style1' | 'style2').
  $form['details']['style_settings']['peelStyle'] = array(
    '#type' => 'select',
    '#title' => t('Peel Style'),
    '#options' => pageear_get_options('peelStyle'),
    '#default_value' => $pageear->peelStyle,
    '#required' => TRUE,
  );
  // End Style settings.


  // Size Settings.
  $form['details']['size_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Size Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#description' => t('Design sizes are 100x100px and 500x500px for flag and peel respectively. If you decide to use a custom size try to use logical values. For example it makes not sense to use a larger size for the flag than for the peel. For a further explanation refer to !pageear_size_manual.', array('!pageear_size_manual' => l(t('howto on home page'), 'http://www.pageeargpl.co.cc/content/size-settings', array('target' => '_blank')))),
  );

  // Set flag width
  $form['details']['size_settings']['flagWidth'] = array(
    '#type' => 'textfield',
    '#title' => t('Flag Width'),
    '#required' => TRUE,
    '#default_value' => $pageear->flagWidth,
    '#maxlength' => 4,
    '#size' => 8,
  );

  // Set flag height
  $form['details']['size_settings']['flagHeight'] = array(
    '#type' => 'textfield',
    '#title' => t('Flag Height'),
    '#required' => TRUE,
    '#default_value' => $pageear->flagHeight,
    '#maxlength' => 4,
    '#size' => 8,
  );

  // Set peel width
  $form['details']['size_settings']['peelWidth'] = array(
    '#type' => 'textfield',
    '#title' => t('Peel Width'),
    '#required' => TRUE,
    '#default_value' => $pageear->peelWidth,
    '#maxlength' => 5,
    '#size' => 8,
  );

  // Set peel height
  $form['details']['size_settings']['peelHeight'] = array(
    '#type' => 'textfield',
    '#title' => t('Peel Height'),
    '#required' => TRUE,
    '#default_value' => $pageear->peelHeight,
    '#maxlength' => 5,
    '#size' => 8,
  );
  // End Size settings.


  // Image Settings.
  $form['details']['image_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Image Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // URL to small image.
  $form['details']['image_settings']['smallURL'] = array(
    '#type' => 'item',
    '#title' => t('Unpeeled image'),
    '#value' => check_plain($pageear->smallURL),
  );

  $form['details']['image_settings']['smallURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an image to show when the ad is not peeled (JPG, GIF or PNG 100x100 pixels).'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  // URL to big image.
  $form['details']['image_settings']['bigURL'] = array(
    '#type' => 'item',
    '#title' => t('Peeled image'),
    '#value' => check_plain($pageear->bigURL),
  );

  $form['details']['image_settings']['bigURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an image to show when the ad is peeled (JPG, GIF or PNG 500x500 pixels).'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  // Mirror image ( true | false ).
  $form['details']['image_settings']['mirror'] = array(
    '#type' => 'checkbox',
    '#title' => t('Back mirror'),
    '#default_value' => $pageear->mirror,
    '#description' => t('Mirror the ad on the back of the peeled page.'),
  );

  // In Transition for pageear.
  $form['details']['image_settings']['inTransition'] = array(
    '#type' => 'select',
    '#title' => t('In Transition'),
    '#description' => t('In Transition for the pageear.'),
    '#options' => pageear_get_options('inTransition'),
    '#default_value' => $pageear->inTransition,
    '#required' => TRUE,
  );

  // Duration of In Transition (1-9).
  $form['details']['image_settings']['transitionDuration'] = array(
    '#type' => 'textfield',
    '#title' => t('In Transition Duration'),
    '#description' => t('Duration of in transition. (1-9)'),
    '#required' => TRUE,
    '#default_value' => $pageear->transitionDuration,
    '#maxlength' => 1,
    '#size' => 8,
  );

  // Style of peel back color.
  $form['details']['image_settings']['peelColorStyle'] = array(
    '#type' => 'radios',
    '#title' => t('Back color style'),
    '#description' => t('Choose a flat or gradient color for the back of the peel.'),
    '#options' => pageear_get_options('peelColorStyle'),
    '#default_value' => $pageear->peelColorStyle,
    '#required' => TRUE,
  );

  // Color of peel back.
  $form['details']['image_settings']['peelColor'] = array(
    '#type' => 'radios',
    '#title' => t('Back color'),
    '#description' => t('This color will be used on the back of peel.'),
    '#options' => pageear_get_options('peelColor'),
    '#default_value' => $pageear->peelColor,
    '#required' => TRUE,
  );

  // Custom Color on Peel.
  $form['details']['image_settings']['custom_color'] = array(
    '#type' => 'textfield',
    '#title' => t('Custom Color'),
    '#required' => TRUE,
    '#prefix' => '<div id="pageear-customcolor-picker"></div>',
    '#default_value' => rgb2hex($pageear->redValue, $pageear->greenValue, $pageear->blueValue),
    '#maxlength' => 7,
    '#size' => 8,
  );

  $customcolor_picker_ini = "(function($) {\n";
  $customcolor_picker_ini .= "$(document).ready(function() {\n";
  $customcolor_picker_ini .= "$('#pageear-customcolor-picker').farbtastic('#edit-custom-color');\n";
  $customcolor_picker_ini .= "})\n";
  $customcolor_picker_ini .= "}) (jQuery);";

  drupal_add_js($customcolor_picker_ini, 'inline');

  // Red Value for Custom Color Peel.
  $form['details']['image_settings']['redValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->redValue,
  );

  // Green Value for Custom Color Peel.
  $form['details']['image_settings']['greenValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->greenValue,
  );

  // Blue Value for Custom Color Peel.
  $form['details']['image_settings']['blueValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->blueValue,
  );
  // End Image Settings.


  // Sound Settings.
  $form['details']['sound_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Sound Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // URL to onload sound.
  $form['details']['sound_settings']['loadSoundURL'] = array(
    '#type' => 'item',
    '#title' => t('Onload Sound'),
    '#value' => check_plain($pageear->loadSoundURL),
  );

  $form['details']['sound_settings']['loadSoundURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an mp3 file to play when the ad is loaded.'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  if ($pageear->loadSoundURL != "") {
    $form['details']['sound_settings']['loadSoundRemove'] = array(
      '#type' => 'checkbox',
      '#default_value' => 0,
      '#description' => t('Check this box if you want to remove load sound.'),
    );
  }

  // URL to open peel sound.
  $form['details']['sound_settings']['openSoundURL'] = array(
    '#type' => 'item',
    '#title' => t('Open Peel Sound'),
    '#value' => check_plain($pageear->openSoundURL),
  );

  $form['details']['sound_settings']['openSoundURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an mp3 file to play when the peel is opened.'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  if ($pageear->openSoundURL != "") {
    $form['details']['sound_settings']['openSoundRemove'] = array(
      '#type' => 'checkbox',
      '#default_value' => 0,
      '#description' => t('Check this box if you want to remove open sound.'),
    );
  }

  // URL to close peel sound.
  $form['details']['sound_settings']['closeSoundURL'] = array(
    '#type' => 'item',
    '#title' => t('Close Peel Sound'),
    '#value' => check_plain($pageear->closeSoundURL),
  );

  $form['details']['sound_settings']['closeSoundURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an mp3 file to play when the peel is closed.'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  if ($pageear->closeSoundURL != "") {
    $form['details']['sound_settings']['closeSoundRemove'] = array(
      '#type' => 'checkbox',
      '#default_value' => 0,
      '#description' => t('Check this box if you want to remove close sound.'),
    );
  }
  // End Sound Settings.


   // Linking Settings.
  $form['details']['linking_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('URL Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Link Enable ( true | false ).
  $form['details']['linking_settings']['linkEnabled'] = array(
    '#type' => 'checkbox',
    '#title' => t('Enabled'),
    '#default_value' => $pageear->linkEnabled,
    '#description' => t('Enable or disable the link.'),
  );

  // URL to open on pageear click.
  $form['details']['linking_settings']['link'] = array(
    '#type' => 'textfield',
    '#title' => t('URL'),
    '#description' => t('URL to go when user click on the ad.'),
    '#required' => TRUE,
    '#default_value' => $pageear->link,
    '#size' => 40,
  );

  // Browser target (new) or self (self).
  $form['details']['linking_settings']['linkTarget'] = array(
    '#type' => 'radios',
    '#title' => t('URL target'),
    '#description' => t('Where to open the URL.'),
    '#options' => pageear_get_options('linkTarget'),
    '#default_value' => $pageear->linkTarget,
    '#required' => TRUE,
  );
  //End Linking Settings.


  // Motion Settings.
  $form['details']['motion_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Motion Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Speed of flag movement (1-9).
  $form['details']['motion_settings']['flagSpeed'] = array(
    '#type' => 'textfield',
    '#title' => t('Flag motion speed'),
    '#description' => t('Speed for flag motion. (1-9)'),
    '#required' => TRUE,
    '#default_value' => $pageear->flagSpeed,
    '#maxlength' => 1,
    '#size' => 8,
  );

  // Speed of peel movement (1-9).
  $form['details']['motion_settings']['peelSpeed'] = array(
    '#type' => 'textfield',
    '#title' => t('Peel motion speed'),
    '#description' => t('Speed for peel motion. (1-9)'),
    '#required' => TRUE,
    '#default_value' => $pageear->peelSpeed,
    '#maxlength' => 1,
    '#size' => 8,
  );

  // Opens pageear automaticaly after configured seconds.
  $form['details']['motion_settings']['automaticOpen'] = array(
    '#type' => 'textfield',
    '#title' => t('Automatically peel on load'),
    '#description' => t('Unpeel automatically when the page loads after configured seconds. 0 means no automatically open.'),
    '#required' => TRUE,
    '#default_value' => $pageear->automaticOpen,
    '#maxlength' => 3,
    '#size' => 8,
  );

  // Seconds until pageear close after automatically open.
  $form['details']['motion_settings']['automaticClose'] = array(
    '#type' => 'textfield',
    '#title' => t('Automatically unpeel'),
    '#description' => t('Automatically close after unpeeling after configured seconds. 0 means no automatically unpeel.'),
    '#required' => TRUE,
    '#default_value' => $pageear->automaticClose,
    '#maxlength' => 3,
    '#size' => 8,
  );
  // End Motion Settings.


  // Close button settings.
  $form['details']['closebutton_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Close Button Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Clickable button on open peel ( true | false ).
  $form['details']['closebutton_settings']['close_button_enable'] = array(
    '#type' => 'checkbox',
    '#title' => t('Close Button'),
    '#default_value' => $pageear->close_button_enable,
    '#description' => t('Show a close button on open peel. If this is enabled the peel will not close on mouse out. Users must click button to close peel.'),
  );

  // Text on close button.
  $form['details']['closebutton_settings']['text_on_close_button'] = array(
    '#type' => 'textfield',
    '#title' => t('Close Button Text'),
    '#description' => t('Text on clickable close button.'),
    '#required' => TRUE,
    '#default_value' => $pageear->text_on_close_button,
    '#maxlength' => 20,
    '#size' => 40,
  );

  // Close Button Color.
  $form['details']['closebutton_settings']['closebutton_color'] = array(
    '#type' => 'textfield',
    '#title' => t('Close Button Color'),
    '#required' => TRUE,
    '#prefix' => '<div id="pageear-closebuttoncolor-picker"></div>',
    '#default_value' => rgb2hex($pageear->close_redValue, $pageear->close_greenValue, $pageear->close_blueValue),
    '#maxlength' => 7,
    '#size' => 8,
  );

  $closebuttoncolor_picker_ini = "(function($) {\n";
  $closebuttoncolor_picker_ini .= "$(document).ready(function() {\n";
  $closebuttoncolor_picker_ini .= "$('#pageear-closebuttoncolor-picker').farbtastic('#edit-closebutton-color');\n";
  $closebuttoncolor_picker_ini .= "})\n";
  $closebuttoncolor_picker_ini .= "}) (jQuery);";

  drupal_add_js($closebuttoncolor_picker_ini, 'inline');

  // Close Button Color Red Value.
  $form['details']['closebutton_settings']['close_redValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->close_redValue,
  );

  // Close Button Color Green Value.
  $form['details']['closebutton_settings']['close_greenValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->close_greenValue,
  );

  // Close Button Color Blue Value.
  $form['details']['closebutton_settings']['close_blueValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->close_blueValue,
  );
  // End Close Button Settings.


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

  // Language-based visibility settings - only visible if 'locale' module enabled
  if (module_exists('locale')) {
    $form['visibility_settings']['language_vis_settings'] = array(
      '#type' => 'fieldset',
      '#title' => t('Language specific visibility settings'),
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
    );
    $language_enabled = locale_supported_languages(TRUE);
    $language_options = $language_enabled['name'];
    $form['visibility_settings']['language_vis_settings']['languages'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Show pageear for specific languages'),
      '#options' => $language_options,
      '#default_value' => generate_defaults($pageear->languages),
      '#description' => t('Show the pageear only for the selected language(s). If you select no languages, the pageear will be visible for all languages.'),
    );
  }


  // Role-based visibility settings (mostly borrowed from 'block.admin.inc')
  $result = db_query('SELECT rid, name FROM {role} ORDER BY name');
  $role_options = array();
  while ($role = db_fetch_object($result)) {
    $role_options[$role->rid] = $role->name;
  }
  $form['visibility_settings']['roles_vis_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Role specific visibility settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $form['visibility_settings']['roles_vis_settings']['roles'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Show pageear for specific roles'),
    '#options' => $role_options,
    '#default_value' => generate_defaults($pageear->roles),
    '#description' => t('Show the pageear only for the selected role(s). If you select no roles, the pageear will be visible to all users.'),
  );

  $form['visibility_settings']['page_vis_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Page specific visibility settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $access = user_access('use PHP for pageear visibility');

  if ($pageear->visibility == 2 && !$access) {
    $form['visibility_settings']['page_vis_settings'] = array();
    $form['visibility_settings']['page_vis_settings']['visibility'] = array(
      '#type' => 'value',
      '#value' => 2,
    );
    $form['visibility_settings']['page_vis_settings']['pages'] = array(
      '#type' => 'value',
      '#value' => $pageear->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' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<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' => '<?php ?>'));
    }
    $form['visibility_settings']['page_vis_settings']['visibility'] = array(
      '#type' => 'radios',
      '#title' => t('Show pageear on specific pages'),
      '#options' => $options,
      '#default_value' => $pageear->visibility,
    );
    $form['visibility_settings']['page_vis_settings']['pages'] = array(
      '#type' => 'textarea',
      '#title' => t('Pages'),
      '#default_value' => $pageear->pages,
      '#description' => $description,
    );
  }


  if ($op == 'edit') {
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save'),
    );
    $form['cancel'] = array(
      '#type' => 'markup',
      '#value' => l(t('Cancel'), referer_uri()),
    );
  }
  else if ($op == 'add' || $op == 'clone') {
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save'),
    );

    $form['#submit']['pageear_admin_add_submit'] = array();

    $form['cancel'] = array(
      '#type' => 'markup',
      '#value' => l(t('Cancel'), referer_uri()),
    );
  }

  return $form;
}

// helper function to generate array of keys from values stored on database
// to use on default_values of checkboxes
function generate_defaults($stored_value) {

  $result = array();

  if ($stored_value == '') {
    return $result;
  }

  $stored_value_array = explode(',', $stored_value);

  foreach ($stored_value_array as $key => $value) {
    if ($value != '0') {
      $result[] = $value;
    }
  }

  return $result;

}

/**
 * hook_validate: validation function for the pageear configuration form.
 */
function pageear_admin_edit_validate($form_id, $form_values, $form) {

  $directory_path = file_directory_path() .'/'. PAGEEAR_PATH_IMAGES;

  // checks if directory exist and creates it if it don't
  file_check_directory($directory_path, FILE_CREATE_DIRECTORY, 'file_directory_path');

  if ($file = file_save_upload('waitURL_upload')) {

    $parts = pathinfo($file->filename);

    if ($parts['extension'] != 'jpeg' && $parts['extension'] != 'jpg' && $parts['extension'] != 'gif' && $parts['extension'] != 'png') {

        file_delete($file->filepath);
        form_set_error('waitURL_upload', t('Uploaded file must be an image. JPEG, PNG or GIF'));

    }
    else {

      $dest_filename = $directory_path .'/waitURL_'. $form_values['peid'] .'.'. $parts['extension'];
      $source_path = $file->filepath;

      // copy temp uploaded file to its destination
      // and delete temp uploaded file
      if (file_copy($source_path, $dest_filename)) {
        file_delete($file->filepath);
        form_set_value($form['details']['wait_settings']['waitURL'], $source_path);
      }
      else {
        file_delete($file->filepath);
        form_set_error('waitURL_upload', t('Wait icon upload failed. Please try again.'));
      }

    }
  }
  else {
    form_set_value($form['details']['wait_settings']['waitURL'], $form['details']['wait_settings']['waitURL']['#value']);
  }

  // uploads images from image upload fields
  foreach (array('smallURL', 'bigURL') as $image) {

    if ($file = file_save_upload($image .'_upload')) {

      $parts = pathinfo($file->filename);

      if ($parts['extension'] != 'jpeg' && $parts['extension'] != 'jpg' && $parts['extension'] != 'gif' && $parts['extension'] != 'png' && $parts['extension'] != 'swf') {

        file_delete($file->filepath);
        form_set_error($image .'_upload', t('Uploaded file must be an image or flash movie. JPEG, PNG, GIF or SWF'));

      }
      else {

        $dest_filename = $directory_path .'/'. $image .'_'. $form_values['peid'] .'.'. $parts['extension'];
        $source_path = $file->filepath;

        if (file_copy($source_path, $dest_filename)) {
          file_delete($file->filepath);
          form_set_value($form['details']['image_settings'][$image], $source_path);
        }
        else {
          file_delete($file->filepath);
          form_set_error($image .'_upload', t('Media upload failed. Please try again.'));
        }

      }
    }
    else {
      form_set_value($form['details']['image_settings'][$image], $form['details']['image_settings'][$image]['#value']);
    }
  }

  // uploads images from sound upload fields
  foreach (array('loadSoundURL', 'openSoundURL', 'closeSoundURL') as $sound) {

    if ($file = file_save_upload($sound .'_upload')) {

      $parts = pathinfo($file->filename);

      if ($parts['extension'] != 'mp3') {

        file_delete($file->filepath);
        form_set_error($sound .'_upload', t('Uploaded sound must be a MP3 file.'));

      }
      else {

        $dest_filename = $directory_path .'/'. $sound .'_'. $form_values['peid'] .'.'. $parts['extension'];
        $source_path = $file->filepath;

        if (file_copy($source_path, $dest_filename)) {
          file_delete($file->filepath);
          form_set_value($form['details']['sound_settings'][$sound], $source_path);
        }
        else {
          file_delete($file->filepath);
          form_set_error($sound .'_upload', t('Sound upload failed. Please try again.'));
        }

      }
    }
    else {
      form_set_value($form['details']['sound_settings'][$sound], $form['details']['sound_settings'][$sound]['#value']);
    }
  }

  // Remove sounds checked for removal
  // TODO remove files too or wait till they are removed when the pageear is removed?
  if ($form_values['loadSoundRemove']) {
    form_set_value($form['details']['sound_settings']['loadSoundURL'], '');
  }
  if ($form_values['openSoundRemove']) {
    form_set_value($form['details']['sound_settings']['openSoundURL'], '');
  }
  if ($form_values['closeSoundRemove']) {
    form_set_value($form['details']['sound_settings']['closeSoundURL'], '');
  }

  // Sizes validation
  // TODO Review if I must restrict this more. For example test the ratio peel/flag.
  if (!is_numeric($form_values['waitWidth']) || $form_values['waitWidth'] < 10) {
    form_set_error('waitWidth', t('Wait Icon Width must be a number greater than 10'));
  }
  if (!is_numeric($form_values['waitHeight']) || $form_values['waitHeight'] < 10) {
    form_set_error('waitHeight', t('Wait Icon Height must be a number greater than 10'));
  }
  if (!is_numeric($form_values['flagWidth']) || $form_values['flagWidth'] < 10) {
    form_set_error('flagWidth', t('Flag Width must be a number greater than 10'));
  }
  if (!is_numeric($form_values['flagHeight']) || $form_values['flagHeight'] < 10) {
    form_set_error('flagHeight', t('Flag Height must be a number greater than 10'));
  }
  if (!is_numeric($form_values['peelWidth']) || $form_values['peelWidth'] < 50) {
    form_set_error('peelWidth', t('Peel Width must be a number greater than 50'));
  }
  if (!is_numeric($form_values['peelHeight']) || $form_values['peelHeight'] < 50) {
    form_set_error('peelHeight', t('Peel Height must be a number greater than 50'));
  }

  // Duration or Transition validation
  if (!is_numeric($form_values['transitionDuration']) || $form_values['transitionDuration'] == 0) {
    form_set_error('transitionDuration', t('Duration of transition must be a number between 1 and 9'));
  }

  // Peel custom color validation.
  // If user sets color manually with input textfield wrong hex values would be ignored by conversion function.
  $custom_rgb_peel_color = hex2rgb($form_values['custom_color']);
  form_set_value($form['details']['image_settings']['redValue'], $custom_rgb_peel_color[0]);
  form_set_value($form['details']['image_settings']['greenValue'], $custom_rgb_peel_color[1]);
  form_set_value($form['details']['image_settings']['blueValue'], $custom_rgb_peel_color[2]);

  // Flag speed validation
  if (!is_numeric($form_values['flagSpeed']) || $form_values['flagSpeed'] == 0) {
    form_set_error('flagSpeed', t('Flag motion speed must be a number between 1 and 9'));
  }

  // Peel speed validation
  if (!is_numeric($form_values['peelSpeed']) || $form_values['peelSpeed'] == 0) {
    form_set_error('peelSpeed', t('Peel motion speed must be a number between 1 and 9'));
  }

  // AutomaticOpen validation
  if (!is_numeric($form_values['automaticOpen']) || $form_values['automaticOpen'] < 0) {
    form_set_error('automaticOpen', t('Automatically peel onload seconds must be a number between 0 and 999'));
  }

  // AutomaticClose validation
  if (!is_numeric($form_values['automaticClose']) || $form_values['automaticClose'] < 0) {
    form_set_error('automaticClose', t('Automatically peel onclose seconds must be a number between 0 and 999'));
  }

  // Close button color validation
  // If user sets color manually with input textfield wrong hex values would be ignored by conversion function.
  $custom_rgb_close_button_color = hex2rgb($form_values['closebutton_color']);
  form_set_value($form['details']['closebutton_settings']['close_redValue'], $custom_rgb_close_button_color[0]);
  form_set_value($form['details']['closebutton_settings']['close_greenValue'], $custom_rgb_close_button_color[1]);
  form_set_value($form['details']['closebutton_settings']['close_blueValue'], $custom_rgb_close_button_color[2]);

  // Text on close button
  if (preg_match("/^[a-z][a-z ]+$/", $form_values['text_on_close_button']) == 0) {
    form_set_error('text_on_close_button', t('Only lowercase letters and spaces are allowed for text on close button. It must start with a lowercase letter too.'));
  }

}

/**
 * hook_submit: submit function for the pageear configuration form.
 */
function pageear_admin_edit_submit($form_id, $form_values) {

  // Save the edited pageear
  if (!form_get_errors()) {

    if (module_exists('locale')) {
      $languages = implode(',', $form_values['languages']);
    }
    else {
      $languages = '';
    }
    $roles = implode(',', $form_values['roles']);

    $sql = "UPDATE {pageears} SET";
    $sql .= " status = '%d', name = '%s', peelPosition = '%s', peelPositionModel = '%s', waitEnable = '%d', waitURL = '%s', waitWidth = '%d', waitHeight = '%d', flagStyle = '%s', peelStyle = '%s', flagWidth = '%d', flagHeight = '%d', peelWidth = '%d', peelHeight = '%d', smallURL = '%s', bigURL = '%s', mirror = '%d', inTransition = '%s', transitionDuration = '%d', peelColorStyle = '%s', peelColor = '%s', redValue = '%d', greenValue = '%d', blueValue = '%d', linkEnabled = '%d', linkTarget = '%s', link = '%s', loadSoundURL = '%s', openSoundURL = '%s', closeSoundURL = '%s', flagSpeed = '%d', peelSpeed = '%d', automaticOpen = '%d', automaticClose = '%d', close_button_enable = '%d', text_on_close_button = '%s', close_redValue = '%d', close_greenValue = '%d', close_blueValue = '%d', languages = '%s', roles = '%s', visibility = '%d', pages = '%s'";
    $sql .= " WHERE peid = %d";
    db_query($sql,
      $form_values['status'],
      $form_values['name'],
      $form_values['peelPosition'],
      $form_values['peelPositionModel'],
      $form_values['waitEnable'],
      $form_values['waitURL'],
      $form_values['waitWidth'],
      $form_values['waitHeight'],
      $form_values['flagStyle'],
      $form_values['peelStyle'],
      $form_values['flagWidth'],
      $form_values['flagHeight'],
      $form_values['peelWidth'],
      $form_values['peelHeight'],
      $form_values['smallURL'],
      $form_values['bigURL'],
      $form_values['mirror'],
      $form_values['inTransition'],
      $form_values['transitionDuration'],
      $form_values['peelColorStyle'],
      $form_values['peelColor'],
      $form_values['redValue'],
      $form_values['greenValue'],
      $form_values['blueValue'],
      $form_values['linkEnabled'],
      $form_values['linkTarget'],
      $form_values['link'],
      $form_values['loadSoundURL'],
      $form_values['openSoundURL'],
      $form_values['closeSoundURL'],
      $form_values['flagSpeed'],
      $form_values['peelSpeed'],
      $form_values['automaticOpen'],
      $form_values['automaticClose'],
      $form_values['close_button_enable'],
      $form_values['text_on_close_button'],
      $form_values['close_redValue'],
      $form_values['close_greenValue'],
      $form_values['close_blueValue'],
      $languages,
      $roles,
      $form_values['visibility'],
      $form_values['pages'],
      $form_values['peid']
    );

    // Update the global variable numEnabledPageears that tracks number of pageears enabled
    if ($form_values['status'] != $form_values['previous_status']) {
      if ($form_values['status']) {
        variable_set('numEnabledPageears', variable_get('numEnabledPageears', 0) + 1);
      }
      else {
        variable_set('numEnabledPageears', variable_get('numEnabledPageears', 1) - 1);
      }
    }

    drupal_set_message(t('The pageear %name has been saved.', array('%name' => $form_values['name'])));
  }

  return 'admin/build/pageear';
}

/**
 * hook_submit: when adding new pageear.
 */
function pageear_admin_add_submit($form_id, $form_values) {

  if (module_exists('locale')) {
    $languages = implode(',', $form_values['languages']);
  }
  else {
    $languages = '';
  }
  $roles = implode(',', $form_values['roles']);

  $sql = "INSERT INTO {pageears} (status, name, peelPosition, peelPositionModel, waitEnable, waitURL, waitWidth, waitHeight, flagStyle, peelStyle, flagWidth, flagHeight, peelWidth, peelHeight, smallURL, bigURL, mirror, inTransition, transitionDuration, peelColorStyle, peelColor, redValue, greenValue, blueValue, linkEnabled, linkTarget, link, loadSoundURL, openSoundURL, closeSoundURL, flagSpeed, peelSpeed, automaticOpen, automaticClose, close_button_enable, text_on_close_button, close_redValue, close_greenValue, close_blueValue, languages, roles, visibility, pages)";
  $sql .= " VALUES ('%d', '%s', '%s', '%s', '%d', '%s', '%d', '%d', '%s', '%s', '%d', '%d', '%d', '%d', '%s', '%s', '%d', '%s', '%d', '%s', '%s', '%d', '%d', '%d', '%d', '%s', '%s', '%s', '%s', '%s', '%d', '%d', '%d', '%d', '%d', '%s', '%d', '%d', '%d', '%s', '%s', '%d', '%s')";

  db_query($sql,
    $form_values['status'],
    $form_values['name'],
    $form_values['peelPosition'],
    $form_values['peelPositionModel'],
    $form_values['waitEnable'],
    $form_values['waitURL'],
    $form_values['waitWidth'],
    $form_values['waitHeight'],
    $form_values['flagStyle'],
    $form_values['peelStyle'],
    $form_values['flagWidth'],
    $form_values['flagHeight'],
    $form_values['peelWidth'],
    $form_values['peelHeight'],
    $form_values['smallURL'],
    $form_values['bigURL'],
    $form_values['mirror'],
    $form_values['inTransition'],
    $form_values['transitionDuration'],
    $form_values['peelColorStyle'],
    $form_values['peelColor'],
    $form_values['redValue'],
    $form_values['greenValue'],
    $form_values['blueValue'],
    $form_values['linkEnabled'],
    $form_values['linkTarget'],
    $form_values['link'],
    $form_values['loadSoundURL'],
    $form_values['openSoundURL'],
    $form_values['closeSoundURL'],
    $form_values['flagSpeed'],
    $form_values['peelSpeed'],
    $form_values['automaticOpen'],
    $form_values['automaticClose'],
    $form_values['close_button_enable'],
    $form_values['text_on_close_button'],
    $form_values['close_redValue'],
    $form_values['close_greenValue'],
    $form_values['close_blueValue'],
    $languages,
    $roles,
    $form_values['visibility'],
    $form_values['pages']
  );

  // Move any images or sounds
  // to reflect the peid on its names

  // get last used peid
  $result = db_query("SELECT p.peid FROM {pageears} p ORDER BY peid");
  while ($row = db_fetch_object($result)) {
    $last_used_peid = $row->peid;
  }

  $directory_path = file_directory_path() .'/'. PAGEEAR_PATH_IMAGES;

  foreach (array('waitURL', 'smallURL', 'bigURL', 'loadSoundURL', 'openSoundURL', 'closeSoundURL') as $image_sound) {

    //if ($image_sound == 'smallURL' || $image_sound == 'bigURL') {
    //  $extension = '.jpg';
    //}
    //else {
    //  $extension = '.mp3';
    //}

    $stringparts = explode(".", $form_values[$image_sound]);
    $extension = $stringparts[count($stringparts)-1];

    $source_path = $form_values[$image_sound];
    if ($source_path != '') {
      $destination_path = $directory_path .'/'. $image_sound .'_'. $last_used_peid .'.'. $extension;
      file_copy($source_path, $destination_path, FILE_EXISTS_REPLACE);

      $sql = "UPDATE {pageears} SET";
      $sql .= " ". $image_sound ." = '%s'";
      $sql .= " WHERE peid = %d";
      db_query($sql,
        $destination_path,
        $last_used_peid
      );

    }

  }

  // Delete possible images sounds uploaded as peid = 0
  delete_images_sounds(0);

  // Update the global variable numEnabledPageears that tracks number of pageears enabled
  if ($form_values['status']) {
    variable_set('numEnabledPageears', variable_get('numEnabledPageears', 0) + 1);
  }

  drupal_set_message(t('The pageear %name has been created.', array('%name' => $form_values['name'])));
  return 'admin/build/pageear';
}

/**
 * Menu callback: disable a specific pageear.
 */
function pageear_admin_disable($peid) {
  db_query("UPDATE {pageears} SET status = 0 WHERE peid = %d", $peid);

  // Update the global variable numEnabledPageears that tracks number of pageears enabled
  variable_set('numEnabledPageears', variable_get('numEnabledPageears', 1) - 1);

  drupal_goto('admin/build/pageear');
}

/**
 * Menu callback: enable a specific pageear.
 */
function pageear_admin_enable($peid) {
  db_query("UPDATE {pageears} SET status = 1 WHERE peid = %d", $peid);

  // Update the global variable numEnabledPageears that tracks number of pageears enabled
  variable_set('numEnabledPageears', variable_get('numEnabledPageears', 0) + 1);

  drupal_goto('admin/build/pageear');
}

/**
 * Deletes images and sounds for specific pageear.
 */
function delete_images_sounds($peid) {

  $directory_path = file_directory_path() .'/'. PAGEEAR_PATH_IMAGES;
  // if the directory where files reside does not exists nothing to do
  if (!file_check_directory($directory_path)) {
    return;
  }

  foreach (array('waitURL', 'smallURL', 'bigURL', 'loadSoundURL', 'openSoundURL', 'closeSoundURL') as $image_sound) {

    if ($image_sound == 'waitURL' || $image_sound == 'smallURL' || $image_sound == 'bigURL') {
      $extensions = array('.jpg', '.jpeg', '.gif', '.png', '.swf');
    }
    else {
      $extensions = array('.mp3');
    }

    foreach ($extensions as $extension) {

      $filename = $directory_path .'/'. $image_sound .'_'. $peid;
      $filepath = $filename . $extension;
      file_delete($filepath);

      $i = 0;
      $filepath = $filename .'_'. $i . $extension;

      while (file_delete($filepath)) {
        $i += 1;
        $filepath = $filename .'_'. $i . $extension;
      }

    }

  }
}

/**
 * Menu callback; confirm deletion of a pageear.
 */
function pageear_admin_delete($peid) {
  $form['pageear'] = array('#type' => 'hidden', '#value' => serialize(pageear_load($peid)));
  $params = array('%name' => $pageear->name);
  return confirm_form($form, t('Are you sure you want to delete the pageear %name?', $params), 'admin/build/pageear', NULL, t('Delete'), t('Cancel'));
}

/**
 * hook_submit: deletion of pageear confirmed.
 */
function pageear_admin_delete_submit($form_id, $form_values) {
  $pageear = unserialize($form_values['pageear']);
  db_query('DELETE FROM {pageears} WHERE peid = %d', $pageear->peid);

  delete_images_sounds($pageear->peid);

  drupal_set_message(t('The pageear %name has been removed.', array('%name' => $pageear->name)));
  return 'admin/build/pageear';
}

/**
 * Helper functions for color conversions
 */

function hex2rgb($color) {

  if ($color[0] == '#') {
    $color = drupal_substr($color, 1);
  }

  if (drupal_strlen($color) == 6) {
    list($r, $g, $b) = array(
      $color[0] . $color[1],
      $color[2] . $color[3],
      $color[4] . $color[5]
    );
  }
  elseif (drupal_strlen($color) == 3) {
    list($r, $g, $b) = array(
      $color[0] . $color[0],
      $color[1] . $color[1],
      $color[2] . $color[2]
    );
  }
  else {
    return array(0, 0, 0);
  }

  $r = hexdec($r);
  $g = hexdec($g);
  $b = hexdec($b);
  return array($r, $g, $b);
}

function rgb2hex($r, $g=-1, $b=-1) {

  if (is_array($r) && sizeof($r) == 3) {
    list($r, $g, $b) = $r;
  }

  $r = intval($r);
  $g = intval($g);
  $b = intval($b);

  $r = dechex($r<0?0:($r>255?255:$r));
  $g = dechex($g<0?0:($g>255?255:$g));
  $b = dechex($b<0?0:($b>255?255:$b));

  $color = (drupal_strlen($r) < 2?'0':'') . $r;
  $color .= (drupal_strlen($g) < 2?'0':'') . $g;
  $color .= (drupal_strlen($b) < 2?'0':'') . $b;
  return '#'. $color;
}