--- /dev/null
+<?php
+
+/**
+ * @file
+ * Hooks and API provided by the Blazy module.
+ */
+
+/**
+ * @defgroup blazy_api Blazy API
+ * @{
+ * Information about the Blazy usages.
+ *
+ * Modules may implement any of the available hooks to interact with Blazy.
+ * Blazy may be configured using the web interface using formatters, or Views.
+ * However below is a few sample coded ones as per Blazy RC2+.
+ *
+ * A single image sample.
+ * @code
+ * function my_module_render_blazy() {
+ * $settings = [
+ * // URI is stored in #settings property so to allow traveling around video
+ * // and lightboxes before being passed into theme_blazy().
+ * 'uri' => 'public://logo.jpg',
+ *
+ * // Explicitly request for Blazy.
+ * // This allows Slick lazyLoad to not load Blazy.
+ * 'lazy' => 'blazy',
+ *
+ * // Optionally provide an image style:
+ * 'image_style' => 'thumbnail',
+ * ];
+ *
+ * $build = [
+ * '#theme' => 'blazy',
+ * '#settings' => $settings,
+ *
+ * // Or below for clarity:
+ * '#settings' => ['uri' => 'public://logo.jpg', 'lazy' => 'blazy'],
+ *
+ * // Pass custom attributes into the same #item_attributes property as
+ * // Blazy formatters so to respect external modules like RDF, etc. without
+ * // extra property. The regular #attributes property is reserved by Blazy
+ * // container which holds either IMG, icons, or iFrame. Meaning Blazy is
+ * // not just IMG.
+ * '#item_attributes' => [
+ * 'alt' => t('Thumbnail'),
+ * 'title' => t('Thumbnail title'),
+ * 'width' => 120,
+ * ],
+ *
+ * // Finally load the library, or include it into a parent container.
+ * '#attached' => ['library' => ['blazy/load']],
+ * ];
+ *
+ * return $build;
+ * }
+ * @endcode
+ * @see \Drupal\blazy\Blazy::buildAttributes()
+ * @see \Drupal\blazy\Dejavu\BlazyDefault::imageSettings()
+ *
+ * A multiple image sample.
+ *
+ * For advanced usages with multiple images, and a few Blazy features such as
+ * lightboxes, lazyloaded images, or iframes, including CSS background and
+ * aspect ratio, etc.:
+ * o Invoke blazy.manager, and or blazy.formatter.manager, services.
+ * o Use \Drupal\blazy\BlazyManager::getImage() method to work with images and
+ * pass relevant settings which request for particular Blazy features
+ * accordingly.
+ * o Use \Drupal\blazy\BlazyManager::attach() to load relevant libraries.
+ * @code
+ * function my_module_render_blazy_multiple() {
+ * // Invoke the plugin class, or use a DI service container accordingly.
+ * $manager = \Drupal::service('blazy.manager');
+ *
+ * $settings = [
+ * // Explicitly request for Blazy library.
+ * // This allows Slick lazyLoad, or text formatter, to not load Blazy.
+ * 'blazy' => TRUE,
+ *
+ * // Supported media switcher options dependent on available modules:
+ * // colorbox, media (Image to iframe), photobox.
+ * 'media_switch' => 'media',
+ * ];
+ *
+ * // Build images.
+ * $build = [
+ * // Load images via $manager->getImage().
+ * // See above ...Formatter::buildElements() for consistent samples.
+ * ];
+ *
+ * // Finally attach libraries as requested via $settings.
+ * $build['#attached'] = $manager->attach($settings);
+ *
+ * return $build;
+ * }
+ * @endcode
+ * @see \Drupal\blazy\Plugin\Field\FieldFormatter\BlazyFormatterTrait::buildElements()
+ * @see \Drupal\blazy\Plugin\Field\FieldFormatter\BlazyVideoFormatter::buildElements()
+ * @see \Drupal\gridstack\Plugin\Field\FieldFormatter\GridStackFileFormatterBase::buildElements()
+ * @see \Drupal\slick\Plugin\Field\FieldFormatter\SlickFileFormatterBase::buildElements()
+ * @see \Drupal\blazy\BlazyManager::getImage()
+ * @see \Drupal\blazy\Dejavu\BlazyDefault::imageSettings()
+ *
+ *
+ * Pre-render callback sample to modify/ extend Blazy output.
+ * @code
+ * function my_module_pre_render(array $image) {
+ * $settings = isset($image['#settings']) ? $image['#settings'] : [];
+ *
+ * // Video's HREF points to external site, adds URL to local image.
+ * if (!empty($settings['box_url']) && !empty($settings['embed_url'])) {
+ * $image['#url_attributes']['data-box-url'] = $settings['box_url'];
+ * }
+ *
+ * return $image;
+ * }
+ * @endcode
+ * @see hook_blazy_alter()
+ * @}
+ */
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Alters Blazy attachments to add own library, drupalSettings, and JS template.
+ *
+ * @param array $load
+ * The array of loaded library being modified.
+ * @param array $settings
+ * The available array of settings.
+ *
+ * @ingroup blazy_api
+ */
+function hook_blazy_attach_alter(array &$load, array $settings = []) {
+ if (!empty($settings['photoswipe'])) {
+ $load['library'][] = 'my_module/load';
+
+ $manager = \Drupal::service('blazy.manager');
+ $template = ['#theme' => 'photoswipe_container'];
+ $load['drupalSettings']['photoswipe'] = [
+ 'options' => $manager->configLoad('options', 'photoswipe.settings'),
+ 'container' => $manager->getRenderer()->renderPlain($template),
+ ];
+ }
+}
+
+/**
+ * Alters available lightboxes for Media switch select option at Blazy UI.
+ *
+ * @param array $lightboxes
+ * The array of lightbox options being modified.
+ *
+ * @see https://www.drupal.org/project/blazy_photoswipe
+ *
+ * @ingroup blazy_api
+ */
+function hook_blazy_lightboxes_alter(array &$lightboxes) {
+ $lightboxes[] = 'photoswipe';
+}
+
+/**
+ * Alters Blazy output to support a custom lightbox.
+ *
+ * @param array $image
+ * The renderable array of image being modified.
+ * @param array $settings
+ * The available array of settings.
+ *
+ * @ingroup blazy_api
+ */
+function hook_blazy_alter(array &$image, array $settings = []) {
+ if (!empty($settings['media_switch']) && $settings['media_switch'] == 'photoswipe') {
+ $image['#pre_render'][] = 'my_module_pre_render';
+ }
+}
+
+/**
+ * @} End of "addtogroup hooks".
+ */
projects / yaffs-website / blobdiff