From e6743da250c2b7174e2ab1ad205661f1127dac48 Mon Sep 17 00:00:00 2001
From: Eric Bremner <ebremner@uwaterloo.ca>
Date: Mon, 29 Nov 2021 19:59:25 +0000
Subject: [PATCH] ISTWCMS-5204: updating the display of images to only include
those images stlyes used for an image
---
uw_cfg_common.module | 63 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/uw_cfg_common.module b/uw_cfg_common.module
index f1970ee9..d243a0ba 100644
--- a/uw_cfg_common.module
+++ b/uw_cfg_common.module
@@ -722,6 +722,69 @@ function uw_cfg_common_form_menu_link_content_menu_link_content_form_alter(array
unset($form['menu_parent']['#options']['main:uw_base_profile.front_page']);
}
+/**
+ * Implements template_preprocess_responsive_images().
+ */
+function uw_cfg_common_preprocess_responsive_image(&$variables) {
+
+ // Get the current path.
+ $current_path = \Drupal::service('path.current')->getPath();
+
+ // Explode the current path so we can check where we are.
+ $current_path_parts = explode('/', $current_path);
+
+ // If the current path has a node, we need to alter
+ // the image styles.
+ if ($current_path_parts[1] == 'node') {
+
+ // Get the media library parameters, we will use this
+ // if we are on a media library page/modal.
+ $media_lib_parameters = \Drupal::request()->query->get('media_library_opener_parameters');
+
+ // If we are on a contact image, remove all styles
+ // but those for portraits.
+ if (
+ $media_lib_parameters['bundle'] == 'uw_ct_contact' ||
+ end($current_path_parts) == 'uw_ct_contact'
+ ) {
+
+ // Get the styles used for portraits.
+ $uw_styles = \Drupal::service('uw_cfg_common.uw_service')->getCropImageStyles('portrait');
+ }
+ else {
+
+ // Get the styles used for responsive.
+ $uw_styles = \Drupal::service('uw_cfg_common.uw_service')->getCropImageStyles('portrait');
+ }
+
+ // Step through each of the sources and see if we are.
+ // to use it.
+ foreach ($variables['sources'] as $index => $source) {
+
+ // Get the srcset.
+ $srcset = $source->storage()['srcset']->render();
+
+ // Break into parts so that we can check for image styles.
+ $srcset_parts = explode('/', $srcset);
+
+ // Step through each of the srcset parts.
+ foreach ($srcset_parts as $sp) {
+
+ // Ensure that we are on an image style.
+ if (strpos($sp, 'uw_is') !== FALSE) {
+
+ // If not in the list of image styles, remove
+ // it from the sources.
+ if (!in_array($sp, $uw_styles)) {
+ unset($variables['sources'][$index]);
+ }
+ }
+ }
+ }
+ }
+}
+
+
/**
* Implements hook_form_alter().
*
--
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