Update shared components in `MenuArrow`, `AutocompleteList`

As `MenuArrow` now uses two icons — `PointerUpIcon` and
`PointerDownIcon` — instead of a CSS transform (rotate 180 degrees)
for the down variant, absolute positioning had to be adjusted in the
components that use this arrow.

A future enhancement might be to make positioning easier/unnecessary for
components using `MenuArrow`. Some additional comments have been added
for now.

The shared components in `AutocompleteList` are also updated here.

src/sidebar/components/Annotation/AnnotationShareControl.js

@@ -188,7 +188,7 @@ function AnnotationShareControl({
           {showShareLinks && <ShareLinks shareURI={shareUri} />}
           <MenuArrow
             direction="down"
-            classes="bottom-[-12px] right-1 touch:right-[9px]"
+            classes="bottom-[-9px] right-1 touch:right-[9px]"
           />
         </Card>
       )}

src/sidebar/components/AutocompleteList.js

-import { Card } from '@hypothesis/frontend-shared';
+import { Card } from '@hypothesis/frontend-shared/lib/next';
 import classnames from 'classnames';
 import { useMemo } from 'preact/hooks';
 
@@ -85,20 +85,23 @@ export default function AutocompleteList({
   const isHidden = list.length === 0 || !open;
   return (
     <div className="relative">
-      <Card
-        classes={classnames(
+      <div
+        className={classnames(
           { hidden: isHidden },
           // Move the Card down a bit to make room for the up-pointing arrow
           'absolute top-[3px] z-3',
-          // Override full-width of Card, but set a min-width of `10em`
-          'w-auto min-w-[10em] theme-clean:border p-0'
+          // Ensure Card width is not too narrow
+          'min-w-[10em]'
         )}
+        data-testid="autocomplete-list-container"
       >
+        <Card width="auto">
           <ul tabIndex={-1} aria-label="Suggestions" role="listbox" {...props}>
             {items}
           </ul>
-        <MenuArrow direction="up" classes="top-[-10px] left-[3px]" />
+          <MenuArrow direction="up" classes="top-[-8px] left-[3px]" />
         </Card>
       </div>
+    </div>
   );
 }

src/sidebar/components/Menu.js

@@ -205,7 +205,7 @@ export default function Menu({
             direction="up"
             classes={classnames(
               // Position menu-arrow caret near bottom right of menu label/toggle control
-              'right-0 top-[calc(100%-6px)] w-[15px]',
+              'right-0 top-[calc(100%-3px)] w-[15px]',
               arrowClass
             )}
           />

src/sidebar/components/MenuArrow.js

-import { Icon } from '@hypothesis/frontend-shared';
+import {
+  PointerDownIcon,
+  PointerUpIcon,
+} from '@hypothesis/frontend-shared/lib/next';
 import classnames from 'classnames';
 
 /**
@@ -11,15 +14,19 @@ import classnames from 'classnames';
  * Render a white-filled "pointer" arrow for use in menus and menu-like
  * elements
  *
+ * This will set up absolute positioning for this arrow, but the vertical and
+ * horizontal positioning will need to be tuned in the component using the
+ * arrow by adding additional utlity classes (`classes` prop here).
+ *
  * @param {MenuArrowProps} props
  */
 export default function MenuArrow({ classes, direction = 'up' }) {
+  const Icon = direction === 'up' ? PointerUpIcon : PointerDownIcon;
   return (
     <Icon
       name="pointer"
-      classes={classnames(
+      className={classnames(
         'absolute inline z-2 text-grey-3 fill-white',
-        { 'rotate-180': direction === 'down' },
         classes
       )}
     />

src/sidebar/components/test/AutocompleteList-test.js

@@ -33,12 +33,18 @@ describe('AutocompleteList', () => {
   it('hides the list container when `open` is false', () => {
     // `open` prop defaults to `false`
     const wrapper = createComponent();
-    assert.include(wrapper.find('Card').props().classes, 'hidden');
+    const container = wrapper.find(
+      '[data-testid="autocomplete-list-container"]'
+    );
+    assert.isTrue(container.getDOMNode().classList.contains('hidden'));
   });
 
   it('hides the list container when `list` is empty', () => {
     const wrapper = createComponent({ open: true, list: [] });
-    assert.include(wrapper.find('Card').props().classes, 'hidden');
+    const container = wrapper.find(
+      '[data-testid="autocomplete-list-container"]'
+    );
+    assert.isTrue(container.getDOMNode().classList.contains('hidden'));
   });
 
   it('renders the items in order of the list prop', () => {

src/sidebar/components/test/MenuArrow-test.js

@@ -16,15 +16,11 @@ describe('MenuArrow', () => {
 
   it('should render an arrow pointing up by default', () => {
     const wrapper = createComponent();
-    const arrowClasses = wrapper.find('Icon').props().classes;
-
-    assert.notInclude(arrowClasses, 'rotate-180');
+    assert.isTrue(wrapper.find('PointerUpIcon').exists());
   });
 
   it('should render an arrow pointing down if direction is `down`', () => {
     const wrapper = createComponent({ direction: 'down' });
-    const arrowClasses = wrapper.find('Icon').props().classes;
-
-    assert.include(arrowClasses, 'rotate-180');
+    assert.isTrue(wrapper.find('PointerDownIcon').exists());
   });
 });