--- /dev/null
+<?php
+
+/**
+ * @file
+ * Hooks and API provided by the Slick module.
+ *
+ * Modules may implement any of the available hooks to interact with Slick.
+ */
+
+/**
+ * Slick may be configured using the web interface via sub-modules.
+ *
+ * However below is a few sample coded ones. The simple API is to achieve
+ * consistent markups working for various skins, and layouts for both coded
+ * and sub-modules implementations.
+ *
+ * The expected parameters are:
+ * - items: A required array of slick contents: text, image or media.
+ * - options: An optional array of key:value pairs of custom JS options.
+ * - optionset: An optional optionset object to avoid multiple invocations.
+ * - settings: An array of key:value pairs of HTML/layout related settings.
+ *
+ * @see \Drupal\slick\Plugin\Field\FieldFormatter\SlickImageFormatter
+ * @see \Drupal\slick_views\Plugin\views\style\SlickViews
+ */
+
+/**
+ * Quick sample #1.
+ *
+ * @see \Drupal\slick\SlickManager::build()
+ * @see template_preprocess_slick_wrapper()
+ * @see template_preprocess_slick()
+ *
+ * @return array
+ * The renderable array of a slick instance.
+ */
+function my_module_render_slick() {
+ // Invoke the plugin class, or use a DI service container accordingly.
+ $slick = \Drupal::service('slick.manager');
+
+ // Access the formatter service for image-related methods:
+ $formatter = \Drupal::service('slick.formatter');
+
+ $build = [];
+
+ // Caption contains: alt, data, link, overlay, title.
+ // Each item has keys: slide, caption, settings.
+ $items[] = [
+ // Use $formatter->getImage($element) to have lazyLoad where $element
+ // contains:
+ // item: Drupal\image\Plugin\Field\FieldType\ImageItem.
+ 'slide' => '<img src="https://drupal.org/files/One.gif" />',
+ 'caption' => ['title' => t('Description #1')],
+ ];
+
+ $items[] = [
+ 'slide' => '<img src="https://drupal.org/files/Two.gif" />',
+ 'caption' => ['title' => t('Description #2')],
+ ];
+
+ $items[] = [
+ 'slide' => '<img src="https://drupal.org/files/Three.gif" />',
+ 'caption' => ['title' => t('Description #3')],
+ ];
+
+ // Pass the $items to the array.
+ $build['items'] = $items;
+
+ // If no optionset name is provided via $build['settings'], slick will
+ // fallback to 'default'.
+ // Optionally override 'default' optionset with custom JS options.
+ $build['options'] = [
+ 'autoplay' => TRUE,
+ 'dots' => TRUE,
+ 'arrows' => FALSE,
+ ];
+
+ // Build the slick.
+ $element = $slick->build($build);
+
+ // Prepare $variables to pass into a .twig.html file.
+ $variables['slick'] = $element;
+
+ // Render the slick at a .twig.html file.
+ // {{ slick }}
+ // Or simply return the $element if a renderable array is expected.
+ return $element;
+}
+
+/**
+ * Detailed sample #2.
+ *
+ * This can go to some hook_preprocess() of a target html.twig, or any relevant
+ * PHP file.
+ *
+ * The goal is to create a vertical newsticker, or tweets, with pure text only.
+ * First, create an unformatted Views block, says 'Ticker' containing ~ 10
+ * titles, or any data for the contents -- using EFQ, or static array will do.
+ *
+ * @return array
+ * The renderable array of a slick instance.
+ */
+function my_module_render_slick_detail() {
+ // Invoke the plugin class, or use a DI service container accordingly.
+ $slick = \Drupal::service('slick.manager');
+
+ // Access the formatter service for image related methods:
+ $formatter = \Drupal::service('slick.formatter');
+
+ $build = [];
+
+ // 1.
+ // Optional $settings, can be removed.
+ // Provides HTML settings with optionset name and ID, none of JS related.
+ // To add JS key:value pairs, use #options below instead.
+ // @see \Drupal\slick\SlickDefault for most supported settings.
+ $build['settings'] = [
+ // Optional optionset name, otherwise fallback to default.
+ // 'optionset' => 'blog',
+ // Optional skin name fetched from hook_slick_skins_info(), otherwise none.
+ // 'skin' => 'fullwidth',
+ // Define the main ID. The rest are managed by the module.
+ // If you provide ID, be sure unique per instance as it is cached.
+ // Leave empty to be provided by the module.
+ 'id' => 'slick-ticker',
+
+ // Define the cache max-age, default to -1 (Cache::PERMANENT) to permanently
+ // cache the results. Hence a 1 hour is passed. Be sure it is an integer!
+ 'cache' => 3600,
+ ];
+
+ // 3.
+ // Obligatory #items, as otherwise empty slick.
+ // Prepare #items contents, note the 'slide' key is to hold the actual slide
+ // which can be pure and simple text, or any image/media file.
+ // Meaning $rows can be text only, or image/audio/video, or a combination
+ // of both.
+ // To add caption/overlay, use 'caption' key with the supported sub-keys:
+ // alt, data, link, overlay, title for complex content.
+ // Sanitize each sub-key content accordingly.
+ // @see template_preprocess_slick_slide() for more info.
+ $items = [];
+ foreach ($rows as $key => $row) {
+ // Each item has keys: slide, caption, settings.
+ $items[] = [
+ 'slide' => $row,
+
+ // Optional caption contains: alt, data, link, overlay, title.
+ // If the above slide is an image, to add text caption, use:
+ 'caption' => ['title' => 'some-caption data'],
+
+ // Optional slide settings to manipulate layout, can be removed.
+ // Individual slide supports some useful settings like layout, classes,
+ // etc.
+ // Meaning each slide can have different layout, or classes.
+ // @see src/Plugin/Field/README.txt
+ 'settings' => [
+
+ // Optionally add a custom layout, can be a static uniform value, or
+ // dynamic one based on the relevant field value.
+ // @see src/Plugin/Field/README.txt for the supported layout keys.
+ 'layout' => 'bottom',
+
+ // Optionally add a custom class, can be a static uniform class, or
+ // dynamic one based on the relevant field value.
+ 'class' => 'slide--custom-class--' . $key,
+ ],
+ ];
+ }
+
+ // Pass the $items to the array.
+ $build['items'] = $items;
+
+ // 4.
+ // Optional specific JS options, to re-use one optionset, can be removed.
+ // Play with speed and options to achieve desired result.
+ // @see config/install/slick.optionset.default.yml
+ $build['options'] = [
+ 'arrows' => FALSE,
+ 'autoplay' => TRUE,
+ 'vertical' => TRUE,
+ 'draggable' => FALSE,
+ ];
+
+ // 5.
+ // Build the slick with the arguments as described above.
+ $element = $slick->build($build);
+
+ // Prepare $variables to pass into a .twig.html file.
+ $variables['slick'] = $element;
+
+ // Render the slick at a .twig.html file.
+ // {{ slick }}
+ // Or simply return the $element if a renderable array is expected.
+ return $element;
+}
+
+/**
+ * AsNavFor sample #3.
+ *
+ * The only requirement for asNavFor is:
+ * @code
+ * $build['settings']['optionset'] = 'optionset_name';
+ * $build['settings']['optionset_thumbnail'] = 'optionset_thumbnail_name';
+ * @endcode
+ *
+ * The rest are optional, and will fallback to default:
+ * - $build['settings']['optionset_thumbnail'] = 'optionset_thumbnail_name';
+ * Defined at the main settings.
+ *
+ * - $build['settings']['id'] = 'slick-asnavfor';
+ * Only main display ID is needed. The thumbnail ID will be
+ * automatically created: 'slick-asnavfor-thumbnail', including the content
+ * attributes accordingly. If none provided, will fallback to incremented
+ * ID.
+ *
+ * See the HTML structure below to get a clear idea.
+ *
+ * 1. Main slider:
+ * \n @code
+ * <div id="slick-asnavfor" class="slick">
+ * <div class="slick__slider slick-initialized slick-slider">
+ * <div class="slick__slide"></div>
+ * </div>
+ * </div>
+ * @endcode \n
+ * 2. Thumbnail slider:
+ * \n @code
+ * <div id="slick-asnavfor-thumbnail" class="slick">
+ * <div class="slick__slider slick-initialized slick-slider">
+ * <div class="slick__slide"></div>
+ * </div>
+ * </div>
+ * @endcode \n
+ * The asnavfor targets are the 'slick-initialized' attributes, and managed by
+ * the module automatically when using SlickManager::build().
+ *
+ * @return array
+ * The renderable array of slick instances.
+ */
+function my_module_render_slick_asnavfor() {
+ // Invoke the plugin class, or use a DI service container accordingly.
+ $slick = \Drupal::service('slick.manager');
+
+ // Access the formatter service for image related methods:
+ $formatter = \Drupal::service('slick.formatter');
+
+ $build = [];
+
+ // 1. Main slider ------------------------------------------------------------
+ // Add the main display items.
+ $build['items'] = [];
+
+ // Use theme_slick_image to have lazyLoad, or theme_image_style/theme_image.
+ $images = [1, 2, 3, 4, 6, 7];
+ foreach ($images as $key) {
+ // Each item has keys: slide, caption, settings.
+ $build['items'][] = [
+
+ // Use $formatter->getImage($element) to have lazyLoad where $element
+ // contains:
+ // item: Drupal\image\Plugin\Field\FieldType\ImageItem.
+ 'slide' => '<img src="/sites/all/images/image-0' . $key . '.jpg" width="1140" />',
+
+ // Main caption contains: alt, data, link, overlay, title keys which serve
+ // the purpose to have consistent markups and skins without bothering much
+ // nor remembering what HTML tags and where to place to provide for each
+ // purpose cosnsitently. CSS will do layout regardless HTML composition.
+ // If having more complex caption data, use 'data' key instead.
+ // If the common layout doesn't satisfy the need, just override the twig.
+ 'caption' => ['title' => 'Description #' . $key],
+ ];
+ }
+
+ // Optionally override the optionset.
+ $build['options'] = [
+ 'arrows' => FALSE,
+ 'centerMode' => TRUE,
+ 'centerPadding' => '',
+ ];
+
+ // Satisfy the asnavfor main settings.
+ // @see \Drupal\slick\SlickDefault for most supported settings.
+ $build['settings'] = [
+ // The only required is 'optionset_thumbnail'.
+ // Define both main and thumbnail optionset names once at the main display.
+ 'optionset' => 'optionset_main_name',
+ 'optionset_thumbnail' => 'optionset_thumbnail_name',
+
+ // The rest is optional, just FYI.
+ 'id' => 'slick-asnavfor',
+ 'skin' => 'skin-main-name',
+ 'skin_thumbnail' => 'skin-thumbnail-name',
+ ];
+
+ // 2. Thumbnail slider -------------------------------------------------------
+ // The thumbnail array is grouped by 'thumb'.
+ $build['thumb'] = ['items' => []];
+ foreach ($images as $key) {
+ // Each item has keys: slide, caption, settings.
+ $build['thumb']['items'][] = [
+ // Use $formatter->getThumbnail($settings) where $settings contain:
+ // uri, image_style, height, width, alt, title.
+ 'slide' => '<img src="/sites/all/images/image-0' . $key . '.jpg" width="210" />',
+
+ // Thumbnail caption accepts direct markup or custom renderable array
+ // without any special key to be simple as much as complex.
+ // Think Youtube playlist with scrolling navigation: thumbnail, text, etc.
+ 'caption' => ['#markup' => 'Description #' . $key],
+ ];
+ }
+
+ // Optionally override 'optionset_thumbnail_name' with custom JS options.
+ $build['thumb']['options'] = [
+ 'arrows' => TRUE,
+ 'centerMode' => TRUE,
+ 'centerPadding' => '10px',
+
+ // Be sure to have multiple slides for the thumbnail, otherwise nonsense.
+ 'slidesToShow' => 5,
+ ];
+
+ // Build the slick once.
+ $element = $slick->build($build);
+
+ // Prepare variables to pass into a .twig.html file.
+ $variables['slick'] = $element;
+
+ // Render the slick at a .twig.html file.
+ // {{ slick }}
+ // Or simply return the $element if a renderable array is expected.
+ return $element;
+}
+
+/**
+ * Implements hook_slick_skins_info().
+ *
+ * Registers a class that should hold skin definitions and implements
+ * \Drupal\slick\SlickSkinInterface.
+ *
+ * @deprecated, will be removed anytime when a core solution is available.
+ * @see #2233261
+ * Postponed till D9.
+ *
+ * @see slick_hook_info()
+ * @see slick_example.module
+ * @see slick_extras.module
+ * @see \Drupal\slick\SlickSkinInterface
+ */
+function hook_slick_skins_info() {
+ return '\Drupal\hook\HookSlickSkin';
+}
+
+/**
+ * Implements SlickSkinInterface as registered via hook_slick_skins_info().
+ *
+ * The class must implement \Drupal\slick\SlickSkinInterface, and it has 3
+ * supported methods: ::skins(), ::dots(), ::arrows() to have skin options for
+ * main/thumbnail/overlay/nested displays, dots, and arrows skins respectively.
+ * The declared skins will be available for custom coded, or UI selections.
+ */
+class HookSlickSkin implements SlickSkinInterface {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function skins() {
+ $theme_path = base_path() . drupal_get_path('theme', 'my_theme');
+
+ return [
+ 'skin_name' => [
+ // Human readable skin name.
+ 'name' => 'Skin name',
+ // Description of the skin.
+ 'description' => t('Skin description.'),
+ // To reduce confusion on form selection: main, thumbnail.
+ 'group' => 'main',
+ // Optional module name to prefix the library name.
+ 'provider' => 'my_module',
+ 'css' => [
+ 'theme' => [
+ // Full path to a CSS file to include with the skin.
+ $theme_path . '/css/my-theme--slider.css' => [],
+ $theme_path . '/css/my-theme--carousel.css' => [],
+ ],
+ ],
+ 'js' => [
+ // Full path to a JS file to include with the skin.
+ $theme_path . '/js/my-theme--slider.js' => [],
+ $theme_path . '/js/my-theme--carousel.js' => [],
+ // If you want to act on afterSlick event, or any other slick events,
+ // put a lighter weight before slick.load.min.js (0).
+ $theme_path . '/js/slick.skin.menu.min.js' => ['weight' => -2],
+ ],
+ ],
+ ];
+ }
+
+ /**
+ * Returns the Slick dot skins.
+ *
+ * The provided dot skins will be available at sub-module UI form.
+ * A skin dot named 'hop' will have a class 'slick-dots--hop' for the UL.
+ *
+ * The array is similar to the self::skins(), excluding group, JS.
+ *
+ * @return array
+ * The array of the dot skins.
+ */
+ public function dots() {
+ // Create an array of dot skins.
+ return [];
+ }
+
+ /**
+ * Returns the Slick arrow skins.
+ *
+ * The provided arrow skins will be available at sub-module UI form.
+ * A skin arrow 'slit' will have a class 'slick__arrow--slit' for the NAV.
+ *
+ * The array is similar to the self::skins(), excluding group, JS.
+ *
+ * @return array
+ * The array of the arrow skins.
+ */
+ public function arrows() {
+ // Create an array of arrow skins.
+ return [];
+ }
+
+}