From c93430605e1e4197aa4f7449f6ef9e18d0a5f8fb Mon Sep 17 00:00:00 2001
From: ebremner <ebremner@uwaterloo.ca>
Date: Mon, 30 Nov 2020 16:40:34 -0500
Subject: [PATCH] ISTWCMS-4199: adding prepreprocessing for the header region
to add the main menu with the menu_items_count that is required for the size
of the tray on the main menu
---
uw_fdsu_theme_resp.theme | 102 +++++++++++++++++++++++++++++++++++++++
1 file changed, 102 insertions(+)
diff --git a/uw_fdsu_theme_resp.theme b/uw_fdsu_theme_resp.theme
index 9728d8d8..9ef7494f 100644
--- a/uw_fdsu_theme_resp.theme
+++ b/uw_fdsu_theme_resp.theme
@@ -53,6 +53,41 @@ function uw_fdsu_theme_resp_preprocess_responsive_image(&$variables) {
$variables['sources'] = $new_sources;
}
+/**
+ * A recursive function to count the number of menu items.
+ *
+ * @param $menus
+ * The array list of menu items.
+ * @param $menu_items_count
+ * The reference to the number of items variable.
+ */
+function _uw_fdsu_theme_resp_count_menu_items($menus, &$menu_items_count) {
+
+ // Step through each of the menus.
+ foreach ($menus as $menu) {
+
+ // If there is a submenu, then recursively go down through the list,
+ // until we get to place that doesnt have a submenu and we will
+ // increment the menu items count.
+ if (isset($menu['submenu']) && count($menu['submenu'] > 0)) {
+
+ // Step through each of the submenus and send back to this function.
+ foreach ($menu['submenus'] as $submenu) {
+
+ // Keep calling this function until we have no submenus.
+ _uw_fdsu_theme_resp_count_menu_items($submenu, $menu_items_count);
+ }
+ }
+
+ // Here we have no submenus, so increment the menu items counter.
+ else {
+
+ // Increment the menu items counter.
+ $menu_items_count++;
+ }
+ }
+}
+
/**
* Implements hook_preprocess_region().
*/
@@ -66,6 +101,73 @@ function uw_fdsu_theme_resp_preprocess_region(&$variables) {
// (i.e. faculty colour and get the correct class here).
if ($region == "header") {
+ // Get the main menu from the simplify menu module.
+ $main_menu = \Drupal::service('simplify_menu.menu_items')->getMenuTree('main');
+
+ // Set it to the menu_tree which is done by simplify menu.
+ $main_menu = $main_menu['menu_tree'];
+
+ // Step through the menu and do a few things:
+ // (a) Remove the Home link (this will be a house icon)
+ // (b) Add the number of menu items per menu link.
+ foreach ($main_menu as $index => $menu) {
+
+ // If this is the Home link, then remove it.
+ if ($menu['text'] == "Home") {
+
+ // Remove the home link.
+ unset($main_menu[$index]);
+ }
+
+ // If we are not on the home link, then add the number
+ // of menu items in this menu link.
+ else {
+
+ // Set the menu_item_count, initially to 0.
+ $menu_item_count = 0;
+
+ // If there is a submenu, recursivley call the count function.
+ if (isset($menu['submenu']) && count($menu['submenu']) > 0) {
+
+ // Call the count function recursively till we have the number of
+ // menu items.
+ _uw_fdsu_theme_resp_count_menu_items($menu, $menu_item_count);
+
+ // Now that we have a count of the number of menu items, we need to
+ // increment it by one as the main menu will also contain a link
+ // to the parent (itself) in the Tray.
+ // For example, the menu structure will look like:
+ // Parent (click box in the menu)
+ // Parent (link to the the Parent)
+ // Child #1
+ // Grandchild #1-1
+ // Grandchild #1-2
+ // Child #2
+ // Child #3
+ // Grandchild #3-1
+ // Great grandchild #3-1-1
+ // Great grandchild #3-1-2
+ // Grandchild #3-2
+ // Grandchild #3-3
+ // Great grandchild #3-3-1
+ // So it should with the recursive function it will return 11,
+ // however as we are printing the parent again in the tray, we
+ // actually need 12, so hence the increase by1.
+ $main_menu[$index]['menu_items_count'] = $menu_item_count + 1;
+ }
+
+ // If there are no submenus, the count is 0, there will be no tray.
+ else {
+
+ // Set the number of items count, which is 0.
+ $main_menu[$index]['menu_items_count'] = $menu_item_count;
+ }
+ }
+ }
+
+ // Set the main menu variable.
+ $variables['main_menu'] = $main_menu;
+
// The class that is used for the header.
$variables['classes'][] = 'uw-header';
--
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