sl7_slider.module

<?php

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

define('SL7_SLIDER_ADMIN_PATH', SL7_CONTROL_PANEL_ADMIN_PATH . '/apps/slider');

/**
 * Implements hook_menu().
 */
function sl7_slider_menu() {

  $items[SL7_SLIDER_ADMIN_PATH] = array(
    'title' => 'Слайдер',
    'description' => 'Управление слайдами.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('sl7_slider_settings_form'),
    'access arguments' => array('sl7_slider administer'),
    'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,
  );

  return $items;
}

/**
 * Implement hook_permission().
 */
function sl7_slider_permission() {
  return array(
    'sl7_slider administer' => array('title' => 'Управление слайдером.')
  );
}

/**
 * Implements hook_theme().
 */
function sl7_slider_theme() {
  $items = array(
    'sl7_slider' => array(
      'variables' => array(
        'slider_settings' => NULL,
        'slides' => NULL,
      ),
      'template' => 'templates/sl7-slider',
    ),
    'sl7_slider_configuration_form' => array(
      'render element' => 'form',
    ),
  );

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

  return $items;
}

/**
 * Implements hook_sl7_slider_theme().
 */
function sl7_slider_sl7_slider_theme() {
  $path = drupal_get_path('module', 'sl7_slider');

  $themes['dark'] = array(
    'title' => 'Тёмный',
    'css' => $path . '/css/sl7_slider.css',
  );

  $themes['light'] = array(
    'title' => 'Светлый',
    'css' => $path . '/css/sl7_slider.css',
  );

  return $themes;
}

/**
 * Получение массива тем для слайдера.
 *
 * @param null $theme
 *  Или машинное название темы или пустое значение (выдаст все темы).
 * @return array
 */
function sl7_slider_get_theme($theme = NULL) {
  $themes = &drupal_static(__FUNCTION__);

  if (!isset($themes)) {
    $themes = module_invoke_all('sl7_slider_theme');

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

  drupal_alter(__FUNCTION__, $themes);

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

  return $themes;
}

/**
 * Получение списка машинных названий тем.
 *
 * @param null $theme
 *  Или машинное название темы или пустое значение (выдаст все темы).
 * @return array
 */
function sl7_slider_get_theme_name($theme = NULL) {
  $themes = sl7_slider_get_theme();
  $theme_all = array();

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

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

  return $theme_all;
}

/**
 * Implements hook_block_info().
 */
function sl7_slider_block_info() {
  $blocks['slider'] = array(
    'info' => 'Слайдер',
    'status' => 1,
    'weight' => -10,
    'cache' => DRUPAL_CACHE_GLOBAL,
    'visibility' => BLOCK_VISIBILITY_NOTLISTED,
  );

  if (array_key_exists('slider', system_region_list(variable_get('theme_default')))) {
    $blocks['slider']['region'] = 'slider';
  }
  else {
    $blocks['slider']['region'] = 'front';
  }

  return $blocks;
}

/**
 * Implements hook_block_view().
 */
function sl7_slider_block_view($delta = '') {
  $block = array();

  if ($delta == 'slider') {
    $settings = variable_get('sl7_slider_settings');
    $slides = variable_get('sl7_slider_slides');
    $theme = sl7_slider_get_theme($settings['designStyle']);
    
	if (isset($slides) && !empty($slides)) {
      $prepare_slides = sl7_slider_prepare_slide($slides);
    }

    if (count($prepare_slides) >= 2) {
      $block['content'] = array(
        '#markup'   => theme('sl7_slider', array(
          'slider_settings' => $settings,
          'slides' => $prepare_slides,
        )),
        '#attached' => array(
          'js'  => array(
            drupal_get_path('module', 'sl7_slider') . '/js/sl7_slider.js',
            drupal_get_path('module', 'sl7_slider') . '/vendors/owl.carousel/owl.carousel.min.js',
            array('data' => $settings, 'type' => 'setting'),
          ),
          'css' => array(
            drupal_get_path('module', 'sl7_slider') . '/vendors/owl.carousel/owl.carousel.css',
            drupal_get_path('module', 'sl7_slider') . '/vendors/owl.carousel/owl.transitions.css',
          ),
        ),
      );

      if ($theme['css']) {
        $block['content']['#attached']['css'][] = $theme['css'];
      }
      if ($theme['js']) {
        $block['content']['#attached']['js'][] = $theme['js'];
      }
    }
  }

  return $block;
}

/**
 * Подготовка слайдов к показу. Отключение не опубликованных. Сортировка.
 * @param $slides
 * @return array
 */
function sl7_slider_prepare_slide($slides) {
  $prepare_slides = array();

  foreach ($slides as $i => $value) {
    if ($value['published'] == TRUE) {
      $weight = isset($value['weight']) ? $value['weight'] : 0;

      while (isset($prepare_slides[$weight])) {
        $weight++;
      }

      $prepare_slides[$weight] = $value;
    }
  }

  return $prepare_slides;
}

/**
 * Implements hook_contextual_links_view_alter().
 */
function sl7_slider_contextual_links_view_alter(&$element, &$items) {
  if (isset($element['#element']['#block']) && $element['#element']['#block']->delta == "slider") {
    $element['#links']['settings'] = array(
      'title' => 'Настроить слайдер',
      'href' => url(SL7_SLIDER_ADMIN_PATH),
    );
  }
}

function sl7_slider_settings_form($form, &$form_state) {
  $settings = variable_get('sl7_slider_settings', array());
  $form_state['slides'] = variable_get('sl7_slider_slides');

  $form['#tree'] = TRUE;

  $form['settings'] = array(
    '#type' => 'fieldset',
    '#title' => 'Настройки',
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $form['settings']['pagination'] = array(
    '#type' => 'checkbox',
    '#title' => 'Точки для переключения слайдов',
    '#default_value' => isset($settings['pagination']) ? $settings['pagination'] : 0,
  );
  $form['settings']['navigation'] = array(
    '#type' => 'checkbox',
    '#title' => 'Кнопки управления: Назад, Вперед',
    '#default_value' => isset($settings['navigation']) ? $settings['navigation'] : 0,
  );
  $form['settings']['designStyle'] = array(
    '#type' => 'select',
    '#title' => 'Стиль оформления переключателей',
    '#options' => sl7_slider_get_theme_name(),
    '#default_value' => isset($settings['designStyle']) ? $settings['designStyle'] : 'dark',
  );
  $form['settings']['autoPlay'] = array(
    '#type' => 'textfield',
    '#title' => 'Автоматическое переключение слайда',
    '#description' => 'В миллисекундах. Если хотите выключить автоматическую смену слайдов, установите на 0.',
    '#element_validate' => array('element_validate_number'),
    '#required' => TRUE,
    '#default_value' => isset($settings['autoPlay']) ? $settings['autoPlay'] : 5000,
  );
  $form['settings']['transitionStyle'] = array(
    '#type' => 'select',
    '#title' => 'Стиль переключения слайдов',
    '#options' => array(
      'fade' => 'Замещение',
      'backSlide' => 'Конвейер',
      'goDown' => 'Выпадение сверху',
      'fadeUp' => 'Замещение с увеличением',
    ),
    '#default_value' => isset($settings['transitionStyle']) ? $settings['transitionStyle'] : 'fade',
  );

  // Draggable table.
  $form['order'] = array();

  $form['tabs'] = array(
    '#type' => 'vertical_tabs',
    '#prefix' => '<div id="sliders">',
    '#suffix' => '</div>',
  );

  $form['new'] = array(
    '#type' => 'fieldset',
    '#title' => 'Добавить слайд',
    '#group' => 'tabs',
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => -10,
  );
  $form['new']['upload'] = array(
    '#name' => 'files[upload]',
    '#type' => 'file',
    '#title' => 'Добавить слайд',
    '#description' => 'Разрешенные форматы: gif png jpg jpeg. До 2 Мб.<br />Если слайдер будет расположен на главной странице сайта, то загружайте изображения с шириной не менее 1920px.<br />Так же загружайте одинаковые по размерам слайды.<br />Для начала показа загрузите 2 и более слайда.',
  );

  if (isset($form_state['slides']) && !empty($form_state['slides'])) {
    foreach ($form_state['slides'] as $i => $value) {
      $name = 'Слайд ' . $value['fid'];

      $form['slides'][$i] = array(
        '#type'        => 'fieldset',
        '#title'       => $name,
        '#group'       => 'tabs',
        '#collapsible' => TRUE,
        '#collapsed'   => TRUE,
      );
      $form['slides'][$i]['weight'] = array(
        '#type' => 'weight',
        '#delta' => 10,
        '#default_value' => isset($value['weight']) ? $value['weight'] : 1,
        '#attributes' => array(
          'class' => array('slide-weight'),
        ),
      );
      $form['slides'][$i]['published'] = array(
        '#type' => 'checkbox',
        '#default_value' => isset($value['published']) ? $value['published'] : '',
      );
      $form['slides'][$i]['delete'] = array(
        '#type'          => 'checkbox',
        '#default_value' => 0,
      );
      $file = file_load($value['fid']);
      $variables = array(
        'path'       => $file->uri,
        'style_name' => 'thumbnail',
      );
      $image = theme('image_style', $variables);
      $form['slides'][$i]['preview'] = array(
        '#markup' => $image,
      );
      $form['slides'][$i]['fid'] = array(
        '#type'  => 'hidden',
        '#value' => isset($value['fid']) ? $value['fid'] : 0,
      );
      $form['slides'][$i]['link'] = array(
        '#type'          => 'textfield',
        '#title'         => 'Ссылка',
        '#description'   => 'Если укажите ссылку, то весь слайд станет ссылкой.',
        '#default_value' => isset($value['link']) ? $value['link'] : '',
      );
      $form['slides'][$i]['link_target'] = array(
        '#type'          => 'select',
        '#title'         => 'Назначение ссылки',
        '#options'       => array(
          '_self'  => 'В этой же вкладке',
          '_blank' => 'В новой вкладке',
        ),
        '#default_value' => '_self',
        '#states'        => array(
          'visible' => array(
            ":input[name='slides[$i][link]']" => array('!value' => '')
          )
        )
      );
      $form['slides'][$i]['title'] = array(
        '#type'          => 'textfield',
        '#title'         => 'Заголовок',
        '#default_value' => isset($value['title']) ? $value['title'] : '',
      );
      $form['slides'][$i]['description'] = array(
        '#type'          => 'text_format',
        '#title'         => 'Текст слайда',
        '#default_value' => isset($value['description']['value']) ? $value['description']['value'] : '',
        '#format'        => isset($value['description']['format']) ? $value['description']['format'] : 'plain_text',
      );
    }
  }

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

  // Add a theme function to theme the form
  $form['#theme'][] = 'sl7_slider_configuration_form';

  return $form;
}

function sl7_slider_settings_form_add_slide($file) {
  $file = is_object($file) ? $file : file_load($file);

  $slide = array(
    'fid' => $file->fid,
    'title' => '',
    'delete' => 0,
    'description' => array(
      'value' => '',
      'format' => filter_fallback_format(),
    ),
  );

  return $slide;
}

function sl7_slider_settings_form_submit($form, &$form_state) {

  if (isset($form_state['values']['slides']) && !empty($form_state['values']['slides'])) {
    foreach ($form_state['values']['slides'] as $i => &$value) {
      // Удаление слайдов.
      if ($value['delete'] == 1) {
        unset($form_state['values']['slides'][$i]);

        if (isset($value['fid']) && $value['fid'] != 0) {
          $file = file_load($value['fid']);
          file_delete($file);
        }
      }
      else {
        unset($value['delete']);
        // Смена статуса сохраненных файлов.
        SL7ApiFile::setPermanent($value['fid'], 'sl7_slider', 'slide', $i);
      }
    }
  }

  // Создание нового слайда.
  $file = new stdClass;
  $validate = array(
    'file_validate_is_image' => array(),
    'file_validate_extensions' => array('gif png jpg jpeg'),
    'file_validate_size' => array(1024*1024*2),
  );
  if ($file = file_save_upload('upload', $validate)) {
    $folder = 'public://sl7_slider';
    file_prepare_directory($folder, FILE_CREATE_DIRECTORY);
    $parts = pathinfo($file->filename);
    $destination = $folder . '/' . $parts['basename'];
    $file->status = FILE_STATUS_PERMANENT;
    $file = file_copy($file, $destination, FILE_EXISTS_REPLACE);
    $form_state['values']['slides'][] = sl7_slider_settings_form_add_slide($file);
  }

  // Пересортируем.
  sort($form_state['values']['slides']);

  // Сохраняем.
  variable_set('sl7_slider_settings', $form_state['values']['settings']);
  variable_set('sl7_slider_slides', $form_state['values']['slides']);
  drupal_set_message('Настройки слайдера сохранены.');
}