<?php
// $Id: collapsiblock.module,v 1.12 2007-05-12 00:17:27 nedjo Exp $

/**
 * @file
 * Make blocks collapsible.
 */

/**
 * Implementation of hook_menu().
 */
function collapsiblock_menu($may_cache) {
  $items = array();
  if ($may_cache) {
    $items[] = array(
      'path' => 'admin/settings/collapsiblock',
      'title' => t('Collapsiblock'),
      'description' => t('Configuration for collapsible blocks'),
      'callback' => 'drupal_get_form',
      'callback arguments' => array('collapsiblock_admin_settings')
    );
  }
  else {
    collapsiblock_load();
  }
  return $items;
}

/**
 * Admin settings.
 */
function collapsiblock_admin_settings() {
  $form = array();
  $form['collapsiblock_default_state'] = array(
    '#type' => 'radios',
    '#title' => t('Default block collapse behavior'),
    '#options' => array(1 => t('None.'), 2 => t('Collapsible, expanded by default.'), 3 => t('Collapsible, collapsed by default.')),
    '#default_value' => variable_get('collapsiblock_default_state', 1),
  );
  $form = system_settings_form($form);
  return $form;
}

/**
 * Load needed files.
 */
function collapsiblock_load() {
  static $loaded = FALSE;
  if (!$loaded) {
    $path = drupal_get_path('module', 'collapsiblock');
    module_invoke('jstools', 'add_js', $path . '/collapsiblock.js');
    drupal_add_js(drupal_get_path('module', 'jstools') .'/jquery.cookie.js');
    drupal_add_js(array('collapsiblock' => array('blocks' => variable_get('collapsiblock_settings', array()), 'default_state' => variable_get('collapsiblock_default_state', 1))), 'setting');
    drupal_add_css($path .'/collapsiblock.css');
    $loaded = TRUE;
  }
}

function collapsiblock_form_alter($form_id, &$form) {
  if ($form_id == 'block_admin_configure') {
    $settings = variable_get('collapsiblock_settings', array());
    $form['#submit']['collapsiblock_submit'] = array();
    $form['collapsiblock'] = array(
      '#type' => 'fieldset',
      '#title' => t('Collapsible'),
      '#collapsible' => true,
      '#weight' => -5
    );
    $form['collapsiblock']['collapse_type'] = array(
      '#type' => 'radios',
      '#title' => t('Block collapse behavior'),
      '#options' => array(1 => t('None.'), 2 => t('Collapsible, expanded by default.'), 3 => t('Collapsible, collapsed by default.')),
      '#default_value' => $settings['block-' . $form['module']['#value'] . '-' . $form['delta']['#value']] ? $settings['block-' . $form['module']['#value'] . '-' . $form['delta']['#value']] : variable_get('collapsiblock_default_state', 1),
    );
  }
}

function collapsiblock_footer() {
  drupal_add_js(array('collapsiblock' => jstools_theme_data('collapsiblock')), 'setting');
}

function collapsiblock_submit($form_id, $edit) {
  $settings = variable_get('collapsiblock_settings', array());
  $settings['block-' . $edit['module'] . '-' . $edit['delta']] = $edit['collapse_type'];
  variable_set('collapsiblock_settings', $settings);
}