<?php
// $Id: blog_theme.module,v 1.20.2.8 2008/09/30 08:58:26 augustin Exp $

/**
 * @file
 * This module gives users the option of always having their blog displayed using their default theme
 * using the $custom_theme variable
 *
 * If you have any ideas/patches or requests, please post them
 * on the project's issue queue at drupal.org
 */

/**
 * Implementation of hook_help().
 */
function blog_theme_help($section, $arg) {
  switch ($section) {
    case '':
      return '';
  }
}

/**
 * Implementation of hook_init().
 */
function blog_theme_init() {
  global $custom_theme;
  global $user;

  switch (arg(0)) {
  case 'user':
    // If the settings say we should use the sites' default theme on user profile pages, break here.
    if (variable_get('blog_theme_user_profile', 1) == 2) {
      break;
    }
    // else fallthrough...
  case 'blog':
  case 'shoutbook':
    if (arg(1) !='') {
      $uid = arg(1);
      $themes = list_themes();
      $account = user_load(array((is_numeric($uid) ? 'uid' : 'name') => $uid, 'status' => 1));
      $custom_theme = !empty($account->blog_theme) && $themes[$account->blog_theme]->status ? $account->blog_theme : variable_get('theme_default', 'garland');
    }
    break;
  case 'node':
    $nid = arg(1);
    $themes = list_themes();
    if ($nid == 'add') { //  /node/add
      $add_type = arg(2); // /node/add/type
      $allowed_types = variable_get('blog_theme_node_types', array());
      if (!empty($allowed_types[$add_type])) {
        $account = user_load(array('uid' => $user->uid, 'status' => 1));
        $custom_theme = !empty($account->blog_theme) && $themes[$account->blog_theme]->status ? $account->blog_theme : variable_get('theme_default', 'garland');
      }
      break;
    }
    elseif ($node = node_load(array('nid' => $nid))) { // /node/$nid
      $allowed_types = variable_get('blog_theme_node_types', array());
      if (!empty($allowed_types[$node->type])) {
        $uid = $node->uid;
        $account = user_load(array('uid' => $uid, 'status' => 1));
        $custom_theme = !empty($account->blog_theme) && $themes[$account->blog_theme]->status ? $account->blog_theme : variable_get('theme_default', 'garland');
      }
    }
    break;
  case 'comment':
    $nid = arg(2);
    $themes = list_themes();
    $node = node_load(array('nid' => $nid));
    if ($node->type == 'blog') {
      $uid = $node->uid;
      $account = user_load(array('uid' => $uid, 'status' => 1));
      $custom_theme = !empty($account->blog_theme) && $themes[$account->blog_theme]->status ? $account->blog_theme : variable_get('theme_default', 'garland');
    }
    break;
  case 'image':
    $uid = arg(2);
    $themes = list_themes();
    $account = user_load(array((is_numeric($uid) ? 'uid' : 'name') => $uid, 'status' => 1));
    $custom_theme = !empty($account->blog_theme) && $themes[$account->blog_theme]->status ? $account->blog_theme : variable_get('theme_default', 'garland');
    break;
  }

}

/**
 * Implementation of hook_menu().
 *
 * grabs the theme pref from the currently viewed blog's user object and puts in the $custom_theme variable
 *
 */
function blog_theme_menu() {
  $items = array();

  $items['admin/settings/blog_theme'] = array(
    'title' => 'Blog Theme settings',
    'description' => 'Set content types, and default user page.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('blog_theme_admin_settings_form'),
    'type' => MENU_NORMAL_ITEM,
    'access arguments' => array('access administration pages'),
  );

  return $items;
}

/**
 * Implementation of hook_perm().
 */
function blog_theme_perm() {
  return array('select different blog theme');
}

/**
 * Implementation of hook_theme().
 */
function blog_theme_theme() {
  return array(
    'blog_theme_select_form' => array(
      'arguments' => array('form' => NULL),
    ),
  );
}

/**
 * Implementation of hook_user().
 */
function blog_theme_user($op, &$edit, &$account, $category = NULL) {
  if ($op == 'form' && $category == 'account') {
    if (user_access('select different blog theme')) {
      foreach (list_themes() as $theme) {
        if ($theme->status) {
          $enabled[] = $theme;
        }
      }

      if (count($enabled) > 1) {
        ksort($enabled);

        $form['themes'] = array(
          '#type' => 'fieldset',
          '#title' => t('Your blog theme configuration'),
          '#description' => t('Selecting a different theme will change the look of your own blog for both yourself and other visitors.'),
          '#collapsible' => TRUE,
          '#theme' => 'blog_theme_select_form'
        );

        foreach ($enabled as $info) {
          // For the default theme, revert to an empty string so the user's theme updates when the site theme is changed.
          $info->key = $info->name == variable_get('theme_default', 'garland') ? '' : $info->name;

          $info->screenshot = dirname($info->filename) .'/screenshot.png';
          $screenshot = file_exists($info->screenshot) ? theme('image', $info->screenshot, t('Screenshot for %theme theme', array('%theme' => $info->name)), '', array('class' => 'screenshot'), FALSE) : t('no screenshot');

          $form['themes'][$info->key]['screenshot'] = array('#value' => $screenshot);
          $form['themes'][$info->key]['description'] = array(
            '#type' => 'item', 
            '#title' => $info->name,  
            '#value' => dirname($info->filename) . ($info->name == variable_get('theme_default', 'garland') ? '<br /> <em>'. t('(site default theme)') .'</em>' : '')
          );
          $options[$info->key] = '';
        }

        $form['themes']['blog_theme'] = array(
          '#type' => 'radios', 
          '#options' => $options, 
          '#default_value' => !empty($edit['blog_theme']) ? $edit['blog_theme'] : ''
        );
        $form['#weight'] = 2.5;
        $form_to_return['blog_theme_select'] = $form;
        return $form_to_return;
      }
    }
  }
}


function theme_blog_theme_select_form($form) {
  foreach (element_children($form) as $key) {
    $row = array();
    if (isset($form[$key]['description']) && is_array($form[$key]['description'])) {
      $row[] = drupal_render($form[$key]['screenshot']);
      $row[] = drupal_render($form[$key]['description']);
      $row[] = drupal_render($form['blog_theme'][$key]);
    }
    $rows[] = $row;
  }

  $header = array(t('Screenshot'), t('Name'), t('Selected'));
  $output = theme('table', $header, $rows);
  return $output;
}

/**
 * Menu callback: form builder for settings page.
 */
function blog_theme_admin_settings_form() {
  global $user;
  $form = array();

  $collapsed = TRUE;
  $time = time();
  $time_limit = $time - (60 * 60 * 24 * 30);
  if (variable_get('blog_theme_supported_' . $user->uid, 0) < $time_limit) {
    $collapsed = FALSE;
    variable_set('blog_theme_supported_' . $user->uid, $time);
  }

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

  $form['blog_theme_support_maintainers']['blog_theme_support_text'] = array(
    '#value' => '<p>'
      . t("<strong>The module blog_theme is charity-ware</strong>.") .'<br />'
      . t("Please contribute back by supporting the charity work of the following web sites. ") .'<br />'
      . t("None of the web sites listed here are for profit, and none of them carry advertising.") .'<br />'
      . t("They are all <strong>web sites dedicated to creating a better tomorrow for the whole society</strong>.") .'<br />'
      .'</p>'
      .'<ul>'
      .'<li>'. t('<a href="http://activistsolutions.org/">Activist Solutions</a>: harvesting grassroots power.') .'</li>'
      .'<li>'. t('<a href="http://www.reuniting.info/">Reuniting</a>: healing with sexual relationships.') .'</li>'
      .'<li>'. t('<a href="http://overshoot.tv/">Overshoot TV</a>: making high quality videos and documentaries promoting environmental and economical sustainability.') .'</li>'
      .'<li>'. t('<a href="http://minguo.info/">Minguo.info</a>: promotting better voting systems, and an experiment in direct democracy.') .'</li>'
      .'<li>'. t('<a href="http://www.wechange.org/">We Change</a>: because we live in a world of solutions...') .'</li>'
      .'</ul>'
      .'<p>'
      . t("You can support those web sites in the following ways:") .'<br />'
      .'</p>'
      .'<ul>'
      .'<li>'. t("Blog about them.") .'</li>'
      .'<li>'. t("Put links in a block in a sidebar.") .'</li>'
      .'<li>'. t("Put links in any other logical place in your web site, where your visitors will find the information useful.") .'</li>'
      .'<li>'. t("Register and participate if they match your own interest!") .'</li>'
      .'<li>'. t("We also appreciate if, on behalf of this maintainer,  you help <em>any charity of your choice</em>, or/and make a donation to them.") .'</li>'
      .'</ul>'
      .'<p>'
      . t("Please, let the maintainer know about the options you chose.") .'<br />'
      .'</p>'
      .'<p>'
      . t("Thank you for your support and cooperation.") .'<br />'
      .'</p>',
  );

  $form['blog_theme_user_profile'] = array(
    '#type' => 'select',
    '#title' => t('Which theme to use on the user profile page?'),
    '#description' => t('If a user has selected a different theme for his/her blog, what theme shall be used on his/her user account page?'),
    '#options' => array(1 => t("Use the user's selected theme "), 2 => t("Use the site's default theme")),
    '#default_value' => variable_get('blog_theme_user_profile', 1),
  );

  $node_types = node_get_types();
  $options = array();
  foreach ($node_types AS $type => $o) {
    $options[$type] = $o->name;
  }
  $form['blog_theme_node_types'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Which node types shall the user theme be applied to?'),
    '#description' => t('You can select several node types (e.g. blog) for which the user theme will be applied.'),
    '#options' => $options,
    '#default_value' => variable_get('blog_theme_node_types', array()),
  );

  $form['blog_theme_support_websites'] = array(
    '#type' => 'fieldset',
    '#title' => t("Other charitable web sites..."),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $form['blog_theme_support_websites']['blog_theme_support_other'] = array(
    '#value' => '<p>'
      . t("If your web site meets <em>all</em> the following criteria, you can ask for it to be listed here.")
      .'</p>'
      .'<ul>'
      .'<li>'. t('It uses blog_theme module.') .'</li>'
      .'<li>'. t('It is a charity (registered or not) dedicated to creating a better society.') .'</li>'
      .'<li>'. t('It is not for profit.') .'</li>'
      .'<li>'. t('It does not carry any advertising (e.g. google ads).') .'</li>'
      .'</ul>',
  );

  return system_settings_form($form);
}