sl7_social_button.module

<?php

/**
 * @file
 * SL7 Social Button module.
 * 
 * @author Semyon Dragunov <sam.dragunov@gmail.com>
 * https://github.com/SemyonDragunov
 */

define('SL7_SOCIAL_BUTTON_ADMIN_PATH', SL7_CONTROL_PANEL_ADMIN_PATH . '/social/button');

/**
 * Implement hook_menu().
 */
function sl7_social_button_menu() {

  $items[SL7_SOCIAL_BUTTON_ADMIN_PATH] = array(
    'title' => 'Социальные аккаунты',
    'description' => 'Настройки ссылок на социальные группы и аккаунты.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('sl7_social_button_settings_form'),
    'access arguments' => array('administer sl7_social_button'),
  );

  return $items;
}

/**
 * Implement hook_permission().
 */
function sl7_social_button_permission() {
  return array(
    'administer sl7_social_button' => array(
      'title' => 'Доступ к настройкам ссылок в социальных сетях.',
    )
  );
}

/**
 * Implement hook_theme().
 */
function sl7_social_button_theme() {
  $items = array(
    'sl7_social_button__default' => array(),
  	'sl7_social_button__white' => array(),
  );

  foreach ($items as &$item) {
    if (!isset($item['file'])) {
      $item['file'] = 'templates/theme.inc';
    }
  }

  return $items;
}

/**
 * Implements hook_sl7_social_button_theme().
 */
function sl7_social_button_sl7_social_button_theme() {

  $themes['sl7_default_square'] = array(
    'title' => 'Стандартный',
    'theme' => 'sl7_social_button__default',
    'settings' => 'sl7_social_button_theme_sl7_default_settings',
    'img' => drupal_get_path('module', 'sl7_social_button') . '/img/sl7_social_button__preview.png',
  );
  
  $themes['sl7_white'] = array(
  	'title' => 'Белый',
  	'theme' => 'sl7_social_button__white',
  	'settings' => 'sl7_social_button_theme_sl7_white_settings',
  	'img' => drupal_get_path('module', 'sl7_social_button') . '/img/sl7_social_button__white_preview.png',
  );

  return $themes;
}

function sl7_social_button_theme_sl7_default_settings($default_value) {

  $form['style'] = array(
    '#type' => 'select',
    '#title' => 'Стиль иконок',
    '#options' => array(
      'square' => 'Квадратные',
	  'radius' => 'Закруглённые',
      'round' => 'Круглые',
    ),
    '#default_value' => isset($default_value['style']) ? array($default_value['style']) : array('square'),
  );

  $form['center'] = array(
    '#type' => 'checkbox',
    '#title' => 'Расположить по центру?',
    '#default_value' => isset($default_value['center']) ? $default_value['center'] : 0,
  );

  return $form;
}

function sl7_social_button_theme_sl7_white_settings($default_value) {
	
	$form['center'] = array(
		'#type' => 'checkbox',
		'#title' => 'Расположить по центру?',
		'#default_value' => isset($default_value['center']) ? $default_value['center'] : 0,
	);
	
	return $form;
}

/**
 * Получить информацию о шаблоне.
 *
 * @param null $theme
 *  Ничего или название шаблона.
 * @return array
 *  Если аргумента $theme не пуст, вернёться массив с информацией о шаблоне.
 *  Если аргумент пустой, то массив всех типов шаблонов, где ключ - это
 *  название шаблона, а значение - массив с информацией о шаблоне.
 */
function sl7_social_button_get_theme_info($theme = NULL) {
  $theme_info = &drupal_static(__FUNCTION__);

  if (!isset($theme_info)) {
    $theme_info = module_invoke_all('sl7_social_button_theme');

    foreach ($theme_info as $name => $info) {
      $theme_info[$name] += array(
        'settings' => FALSE,
        'js' => FALSE,
        'css' => FALSE,
      );
    }
  }

  drupal_alter(__FUNCTION__, $theme_info);

  if (array_key_exists($theme, $theme_info)) {
    return $theme_info[$theme];
  }

  return $theme_info;
}

/**
 * Получить список шаблонов.
 *
 * @param null $theme
 *  Ничего или название шаблона.
 * @return array
 *  Если аргумента $theme не пуст, вернёться человекопонятное название.
 *  Если аргумент пустой, то массив всех типов шаблонов, где ключ - это
 *  название шаблона, а значение - человекопонятное название.
 */
function sl7_social_button_get_theme_name($theme = NULL) {
  $theme_info = sl7_social_button_get_theme_info();
  $theme_all = array();

  foreach ($theme_info as $name => $payment) {
    $theme_all[$name] = $payment['title'];
  }

  if (array_key_exists($theme, $theme_all)) {
    return $theme_all[$theme];
  }

  return $theme_all;
}


/**
 * Implements hook_block_info().
 */
function sl7_social_button_block_info() {
  $blocks['button'] = array(
    'info' => 'Социальные кнопки',
    'status' => 1,
    'region' => 'footer',
    'weight' => 10,
    'cache' => DRUPAL_CACHE_GLOBAL,
    'visibility' => BLOCK_VISIBILITY_NOTLISTED,
  );

  return $blocks;
}

/**
 * Implements hook_block_view().
 */
function sl7_social_button_block_view($delta = '') {
  $theme_info = sl7_social_button_get_theme_info(variable_get('sl7_social_button_theme', 'sl7_default_square'));
  $block = array();

  if ($delta == 'button') {
    $block['content'] = array(
      '#markup' => theme($theme_info['theme']),
    );

    if ($theme_info['css'])
      $block['content']['#attached']['css'][] = $theme_info['css'];

    if ($theme_info['js'])
      $block['content']['#attached']['js'][] = $theme_info['js'];
  }

  return $block;
}

/**
 * Implements hook_contextual_links_view_alter().
 */
function sl7_social_button_contextual_links_view_alter(&$element, &$items) {
  if (isset($element['#element']['#block']) && $element['#element']['#block']->delta == "button") {
    if (user_access('administer sl7_social_button')) {
      $element['#links']['social-button'] = array(
        'title' => 'Настроить кнопки',
        'href' => url(SL7_SOCIAL_BUTTON_ADMIN_PATH, array('absolute' => TRUE)),
      );
    }
  }
}

function sl7_social_button_settings_form($form, &$form_state) {
  $conf = variable_get('sl7_social_button_url');
  $theme_info = sl7_social_button_get_theme_info(variable_get('sl7_social_button_theme', 'sl7_default_square'));

  $theme = isset($form_state['values']['theme']) ? $form_state['values']['theme'] : '';

  if (!empty($theme)) {
    $theme_info = sl7_social_button_get_theme_info($theme);
  }

  $form['#tree'] = TRUE;

  $form['theme'] = array(
    '#type' => 'select',
    '#title' => 'Шаблон',
    '#options' => sl7_social_button_get_theme_name(),
    '#default_value' => variable_get('sl7_social_button_theme', 'sl7_default_square'),
    '#ajax' => array(
      'event' => 'change',
      'wrapper' => 'theme-preview',
      'callback' => 'sl7_social_button_theme_preview_ajax_callback',
      'method' => 'replace',
      'progress' => array('type' => 'none'),
    ),
  );
  $form['theme_wrapper'] = array(
    '#prefix' => '<div id="theme-preview">',
    '#suffix' => '</div>',
  );
  $form['theme_wrapper']['theme_preview'] = array(
    '#markup' => '<img src="/' . $theme_info['img'] . '" />',
  );
  if ($theme_info['settings']) {
    $form['theme_wrapper']['settings'] = call_user_func_array($theme_info['settings'], array(variable_get('sl7_social_button_theme_settings')));
  }

  $form['url'] = array(
    '#type' => 'fieldset',
    '#title' => 'Адреса',
    '#collapsible' => TRUE,
    '#collapsed' => FALSE,
  );
  $form['url']['vk'] = array(
    '#type' => 'textfield',
    '#title' => 'Вконтакте',
    '#default_value' => isset($conf['vk']) ? $conf['vk'] : '',
  );
  $form['url']['fb'] = array(
    '#type' => 'textfield',
    '#title' => 'Facebook',
    '#default_value' => isset($conf['fb']) ? $conf['fb'] : '',
  );
  $form['url']['yt'] = array(
    '#type' => 'textfield',
    '#title' => 'YouTube',
    '#default_value' => isset($conf['yt']) ? $conf['yt'] : '',
  );
  $form['url']['tw'] = array(
    '#type' => 'textfield',
    '#title' => 'Twitter',
    '#default_value' => isset($conf['tw']) ? $conf['tw'] : '',
  );
  $form['url']['gl'] = array(
    '#type' => 'textfield',
    '#title' => 'Google+',
    '#default_value' => isset($conf['gl']) ? $conf['gl'] : '',
  );
  $form['url']['ok'] = array(
    '#type' => 'textfield',
    '#title' => 'Одноклассники',
    '#default_value' => isset($conf['ok']) ? $conf['ok'] : '',
  );
  $form['url']['in'] = array(
    '#type' => 'textfield',
    '#title' => 'Instagram',
    '#default_value' => isset($conf['in']) ? $conf['in'] : '',
  );
  $form['url']['mm'] = array(
    '#type' => 'textfield',
    '#title' => 'Мой Мир@Mail.ru',
    '#default_value' => isset($conf['mm']) ? $conf['mm'] : '',
  );
  $form['url']['lj'] = array(
    '#type' => 'textfield',
    '#title' => 'Живой Журнал',
    '#default_value' => isset($conf['lj']) ? $conf['lj'] : '',
  );
  $form['url']['t'] = array(
    '#type' => 'textfield',
    '#title' => 'tumblr',
    '#default_value' => isset($conf['t']) ? $conf['t'] : '',
  );
  $form['url']['gh'] = array(
    '#type' => 'textfield',
    '#title' => 'GitHub',
    '#default_value' => isset($conf['gh']) ? $conf['gh'] : '',
  );
  $form['url']['lin'] = array(
    '#type' => 'textfield',
    '#title' => 'LinkedIn',
    '#default_value' => isset($conf['lin']) ? $conf['lin'] : '',
  );

  $form['actions'] = array('#type' => 'actions');

  $form['actions']['submit'] = array(
    '#type' => 'submit',
    '#value' => 'Сохранить',
    '#weight' => 999,
  );

  return $form;
}

function sl7_social_button_settings_form_validate($form, &$form_state) {
  foreach ($form_state['values']['url'] as $name => $value) {
    if ($value && !valid_url($value, TRUE)) {
      form_set_error('url][' . $name, "Неверный адрес для {$form['url'][$name]['#title']}.");
    }
  }
}

function sl7_social_button_settings_form_submit($form, &$form_state) {
  form_state_values_clean($form_state);
  $conf = array();

  foreach ($form_state['values']['url'] as $key => $value) {
    if (!empty($value)) {
      if (is_array($value) && isset($form_state['values']['array_filter'])) {
        $value = array_keys(array_filter($value));
      }
      $conf[$key] = $value;
    }
  }

  if ($form_state['values']['theme_wrapper']['settings']) {
    variable_set('sl7_social_button_theme_settings', $form_state['values']['theme_wrapper']['settings']);
  }
  variable_set('sl7_social_button_theme', $form_state['values']['theme']);
  variable_set('sl7_social_button_url', $conf);
  drupal_set_message(t('The configuration options have been saved.'));
}

function sl7_social_button_theme_preview_ajax_callback($form, &$form_state) {
  return $form['theme_wrapper'];
}