--- /dev/null
+<?php
+
+namespace Drupal\responsive_image\Entity;
+
+use Drupal\Core\Config\Entity\ConfigEntityBase;
+use Drupal\image\Entity\ImageStyle;
+use Drupal\responsive_image\ResponsiveImageStyleInterface;
+
+/**
+ * Defines the responsive image style entity.
+ *
+ * @ConfigEntityType(
+ * id = "responsive_image_style",
+ * label = @Translation("Responsive image style"),
+ * handlers = {
+ * "list_builder" = "Drupal\responsive_image\ResponsiveImageStyleListBuilder",
+ * "form" = {
+ * "edit" = "Drupal\responsive_image\ResponsiveImageStyleForm",
+ * "add" = "Drupal\responsive_image\ResponsiveImageStyleForm",
+ * "delete" = "Drupal\Core\Entity\EntityDeleteForm",
+ * "duplicate" = "Drupal\responsive_image\ResponsiveImageStyleForm"
+ * }
+ * },
+ * admin_permission = "administer responsive images",
+ * config_prefix = "styles",
+ * entity_keys = {
+ * "id" = "id",
+ * "label" = "label"
+ * },
+ * links = {
+ * "edit-form" = "/admin/config/media/responsive-image-style/{responsive_image_style}",
+ * "duplicate-form" = "/admin/config/media/responsive-image-style/{responsive_image_style}/duplicate",
+ * "delete-form" = "/admin/config/media/responsive-image-style/{responsive_image_style}/delete",
+ * "collection" = "/admin/config/media/responsive-image-style",
+ * }
+ * )
+ */
+class ResponsiveImageStyle extends ConfigEntityBase implements ResponsiveImageStyleInterface {
+
+ /**
+ * The responsive image ID (machine name).
+ *
+ * @var string
+ */
+ protected $id;
+
+ /**
+ * The responsive image label.
+ *
+ * @var string
+ */
+ protected $label;
+
+ /**
+ * The image style mappings.
+ *
+ * Each image style mapping array contains the following keys:
+ * - image_mapping_type: Either 'image_style' or 'sizes'.
+ * - image_mapping:
+ * - If image_mapping_type is 'image_style', the image style ID (a
+ * string).
+ * - If image_mapping_type is 'sizes', an array with following keys:
+ * - sizes: The value for the 'sizes' attribute.
+ * - sizes_image_styles: The image styles to use for the 'srcset'
+ * attribute.
+ * - breakpoint_id: The breakpoint ID for this image style mapping.
+ * - multiplier: The multiplier for this image style mapping.
+ *
+ * @var array
+ */
+ protected $image_style_mappings = [];
+
+ /**
+ * @var array
+ */
+ protected $keyedImageStyleMappings;
+
+ /**
+ * The responsive image breakpoint group.
+ *
+ * @var string
+ */
+ protected $breakpoint_group = '';
+
+ /**
+ * The fallback image style.
+ *
+ * @var string
+ */
+ protected $fallback_image_style = '';
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct(array $values, $entity_type_id = 'responsive_image_style') {
+ parent::__construct($values, $entity_type_id);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function addImageStyleMapping($breakpoint_id, $multiplier, array $image_style_mapping) {
+ // If there is an existing mapping, overwrite it.
+ foreach ($this->image_style_mappings as &$mapping) {
+ if ($mapping['breakpoint_id'] === $breakpoint_id && $mapping['multiplier'] === $multiplier) {
+ $mapping = [
+ 'breakpoint_id' => $breakpoint_id,
+ 'multiplier' => $multiplier,
+ ] + $image_style_mapping;
+ $this->keyedImageStyleMappings = NULL;
+ return $this;
+ }
+ }
+ $this->image_style_mappings[] = [
+ 'breakpoint_id' => $breakpoint_id,
+ 'multiplier' => $multiplier,
+ ] + $image_style_mapping;
+ $this->keyedImageStyleMappings = NULL;
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function hasImageStyleMappings() {
+ $mappings = $this->getKeyedImageStyleMappings();
+ return !empty($mappings);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getKeyedImageStyleMappings() {
+ if (!$this->keyedImageStyleMappings) {
+ $this->keyedImageStyleMappings = [];
+ foreach ($this->image_style_mappings as $mapping) {
+ if (!static::isEmptyImageStyleMapping($mapping)) {
+ $this->keyedImageStyleMappings[$mapping['breakpoint_id']][$mapping['multiplier']] = $mapping;
+ }
+ }
+ }
+ return $this->keyedImageStyleMappings;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getImageStyleMappings() {
+ return $this->image_style_mappings;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setBreakpointGroup($breakpoint_group) {
+ // If the breakpoint group is changed then the image style mappings are
+ // invalid.
+ if ($breakpoint_group !== $this->breakpoint_group) {
+ $this->removeImageStyleMappings();
+ }
+ $this->breakpoint_group = $breakpoint_group;
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getBreakpointGroup() {
+ return $this->breakpoint_group;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setFallbackImageStyle($fallback_image_style) {
+ $this->fallback_image_style = $fallback_image_style;
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFallbackImageStyle() {
+ return $this->fallback_image_style;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function removeImageStyleMappings() {
+ $this->image_style_mappings = [];
+ $this->keyedImageStyleMappings = NULL;
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function calculateDependencies() {
+ parent::calculateDependencies();
+ $providers = \Drupal::service('breakpoint.manager')->getGroupProviders($this->breakpoint_group);
+ foreach ($providers as $provider => $type) {
+ $this->addDependency($type, $provider);
+ }
+ // Extract all the styles from the image style mappings.
+ $styles = ImageStyle::loadMultiple($this->getImageStyleIds());
+ array_walk($styles, function ($style) {
+ $this->addDependency('config', $style->getConfigDependencyName());
+ });
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function isEmptyImageStyleMapping(array $image_style_mapping) {
+ if (!empty($image_style_mapping)) {
+ switch ($image_style_mapping['image_mapping_type']) {
+ case 'sizes':
+ // The image style mapping must have a sizes attribute defined and one
+ // or more image styles selected.
+ if ($image_style_mapping['image_mapping']['sizes'] && $image_style_mapping['image_mapping']['sizes_image_styles']) {
+ return FALSE;
+ }
+ break;
+ case 'image_style':
+ // The image style mapping must have an image style selected.
+ if ($image_style_mapping['image_mapping']) {
+ return FALSE;
+ }
+ break;
+ }
+ }
+ return TRUE;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getImageStyleMapping($breakpoint_id, $multiplier) {
+ $map = $this->getKeyedImageStyleMappings();
+ if (isset($map[$breakpoint_id][$multiplier])) {
+ return $map[$breakpoint_id][$multiplier];
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getImageStyleIds() {
+ $image_styles = [$this->getFallbackImageStyle()];
+ foreach ($this->getImageStyleMappings() as $image_style_mapping) {
+ // Only image styles of non-empty mappings should be loaded.
+ if (!$this::isEmptyImageStyleMapping($image_style_mapping)) {
+ switch ($image_style_mapping['image_mapping_type']) {
+ case 'image_style':
+ $image_styles[] = $image_style_mapping['image_mapping'];
+ break;
+ case 'sizes':
+ $image_styles = array_merge($image_styles, $image_style_mapping['image_mapping']['sizes_image_styles']);
+ break;
+ }
+ }
+ }
+ return array_values(array_filter(array_unique($image_styles)));
+ }
+
+}
projects / yaffs-website / blobdiff