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[yaffs-website] / web / core / modules / toolbar / toolbar.api.php

diff --git a/web/core/modules/toolbar/toolbar.api.php b/web/core/modules/toolbar/toolbar.api.php
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+<?php
+
+/**
+ * @file
+ * Hooks provided by the toolbar module.
+ */
+
+use Drupal\Core\Url;
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Add items to the toolbar menu.
+ *
+ * The toolbar is a container for administrative and site-global interactive
+ * components.
+ *
+ * The toolbar provides a common styling for items denoted by the
+ * .toolbar-tab class.
+ *
+ * The toolbar provides a construct called a 'tray'. The tray is a container
+ * for content. The tray may be associated with a toggle in the administration
+ * bar. The toggle shows or hides the tray and is optimized for small and
+ * large screens. To create this association, hook_toolbar() returns one or
+ * more render elements of type 'toolbar_item', containing the toggle and tray
+ * elements in its 'tab' and 'tray' properties.
+ *
+ * The following properties are available:
+ *   - 'tab': A renderable array.
+ *   - 'tray': Optional. A renderable array.
+ *   - '#weight': Optional. Integer weight used for sorting toolbar items in
+ *     administration bar area.
+ *
+ * This hook is invoked in toolbar_pre_render().
+ *
+ * @return
+ *   An array of toolbar items, keyed by unique identifiers such as 'home' or
+ *   'administration', or the short name of the module implementing the hook.
+ *   The corresponding value is a render element of type 'toolbar_item'.
+ *
+ * @see toolbar_pre_render()
+ * @ingroup toolbar_tabs
+ */
+function hook_toolbar() {
+  $items = [];
+
+  // Add a search field to the toolbar. The search field employs no toolbar
+  // module theming functions.
+  $items['global_search'] = [
+    '#type' => 'toolbar_item',
+    'tab' => [
+      '#type' => 'search',
+      '#attributes' => [
+        'placeholder' => t('Search the site'),
+        'class' => ['search-global'],
+      ],
+    ],
+    '#weight' => 200,
+    // Custom CSS, JS or a library can be associated with the toolbar item.
+    '#attached' => [
+      'library' => [
+        'search/global',
+      ],
+    ],
+  ];
+
+  // The 'Home' tab is a simple link, which is wrapped in markup associated
+  // with a visual tab styling.
+  $items['home'] = [
+    '#type' => 'toolbar_item',
+    'tab' => [
+      '#type' => 'link',
+      '#title' => t('Home'),
+      '#url' => Url::fromRoute('<front>'),
+      '#options' => [
+        'attributes' => [
+          'title' => t('Home page'),
+          'class' => ['toolbar-icon', 'toolbar-icon-home'],
+        ],
+      ],
+    ],
+    '#weight' => -20,
+  ];
+
+  // A tray may be associated with a tab.
+  //
+  // When the tab is activated, the tray will become visible, either in a
+  // horizontal or vertical orientation on the screen.
+  //
+  // The tray should contain a renderable array. An optional #heading property
+  // can be passed. This text is written to a heading tag in the tray as a
+  // landmark for accessibility.
+  $items['commerce'] = [
+    '#type' => 'toolbar_item',
+    'tab' => [
+      '#type' => 'link',
+      '#title' => t('Shopping cart'),
+      '#url' => Url::fromRoute('cart'),
+      '#options' => [
+        'attributes' => [
+          'title' => t('Shopping cart'),
+        ],
+      ],
+    ],
+    'tray' => [
+      '#heading' => t('Shopping cart actions'),
+      'shopping_cart' => [
+        '#theme' => 'item_list',
+        '#items' => [ /* An item list renderable array */ ],
+      ],
+    ],
+    '#weight' => 150,
+  ];
+
+  // The tray can be used to render arbitrary content.
+  //
+  // A renderable array passed to the 'tray' property will be rendered outside
+  // the administration bar but within the containing toolbar element.
+  //
+  // If the default behavior and styling of a toolbar tray is not desired, one
+  // can render content to the toolbar element and apply custom theming and
+  // behaviors.
+  $items['user_messages'] = [
+    // Include the toolbar_tab_wrapper to style the link like a toolbar tab.
+    // Exclude the theme wrapper if custom styling is desired.
+    '#type' => 'toolbar_item',
+    'tab' => [
+      '#type' => 'link',
+      '#theme' => 'user_message_toolbar_tab',
+      '#theme_wrappers' => [],
+      '#title' => t('Messages'),
+      '#url' => Url::fromRoute('user.message'),
+      '#options' => [
+        'attributes' => [
+          'title' => t('Messages'),
+        ],
+      ],
+    ],
+    'tray' => [
+      '#heading' => t('User messages'),
+      'messages' => [/* renderable content */],
+    ],
+    '#weight' => 125,
+  ];
+
+  return $items;
+}
+
+/**
+ * Alter the toolbar menu after hook_toolbar() is invoked.
+ *
+ * This hook is invoked by toolbar_view() immediately after hook_toolbar(). The
+ * toolbar definitions are passed in by reference. Each element of the $items
+ * array is one item returned by a module from hook_toolbar(). Additional items
+ * may be added, or existing items altered.
+ *
+ * @param $items
+ *   Associative array of toolbar menu definitions returned from hook_toolbar().
+ */
+function hook_toolbar_alter(&$items) {
+  // Move the User tab to the right.
+  $items['commerce']['#weight'] = 5;
+}
+
+/**
+ * @} End of "addtogroup hooks".
+ */