feat: add release reactions and a GitHub-like reaction bar (#38415)

Adds emoji reactions to releases and moves the reaction picker of
issues, comments and releases into a GitHub-like reaction bar.

- Releases omit 👎 or 😕
- Drafts and tags can't be reacted to
- Moved menu to tippy
- Added keyboard navigation

Fixes: https://github.com/go-gitea/gitea/issues/34268
Fixes: https://github.com/go-gitea/gitea/issues/16676
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

web_src/js/features/comp/ReactionSelector.ts

@@ -1,31 +1,44 @@
-import {POST} from '../../modules/fetch.ts';
+import {performFetchActionRequest} from '../../modules/fetch-action.ts';
 import {registerGlobalEventFunc} from '../../modules/observer.ts';
+import {createTippy} from '../../modules/tippy.ts';
+import {createElementFromHTML} from '../../utils/dom.ts';
 
 export function initCompReactionSelector() {
+  registerGlobalEventFunc('click', 'onReactionPickerClick', (btn: HTMLElement) => {
+    if (btn._tippy) return;
+    createTippy(btn, {
+      content: btn.nextElementSibling!,
+      theme: 'menu',
+      arrow: false,
+      maxWidth: 'none',
+      placement: 'bottom-start',
+      trigger: 'click',
+      interactive: true,
+      hideOnClick: true,
+    }).show();
+  });
+
   registerGlobalEventFunc('click', 'onCommentReactionButtonClick', async (target: HTMLElement, e: Event) => {
-    // there are 2 places for the "reaction" buttons, one is the top-right reaction menu, one is the bottom of the comment
     e.preventDefault();
 
     if (target.classList.contains('disabled')) return;
 
-    const actionUrl = target.closest('[data-action-url]')!.getAttribute('data-action-url');
-    const reactionContent = target.getAttribute('data-reaction-content')!;
-
-    const commentContainer = target.closest('.comment-container')!;
-
-    const bottomReactions = commentContainer.querySelector('.bottom-reactions'); // may not exist if there is no reaction
-    const bottomReactionBtn = bottomReactions?.querySelector(`a[data-reaction-content="${CSS.escape(reactionContent)}"]`);
-    const hasReacted = bottomReactionBtn?.getAttribute('data-has-reacted') === 'true';
-
-    const res = await POST(`${actionUrl}/${hasReacted ? 'unreact' : 'react'}`, {
-      data: new URLSearchParams({content: reactionContent}),
+    const picker = target.closest('[data-tippy-root]')?._tippy;
+    picker?.hide();
+    const bottomReactions = (picker?.reference ?? target).closest<HTMLElement>('.bottom-reactions')!;
+    const hasReacted = target.getAttribute('data-has-reacted') === 'true';
+    const res = await performFetchActionRequest(bottomReactions, {
+      method: 'POST',
+      url: `${bottomReactions.getAttribute('data-action-url')}/${hasReacted ? 'unreact' : 'react'}`,
+      data: new URLSearchParams({content: target.getAttribute('data-reaction-content')!}),
     });
-    if (!res.ok) return;
+    if (!res) return;
 
     const data = await res.json();
-    bottomReactions?.remove();
-    if (data.html) {
-      commentContainer.insertAdjacentHTML('beforeend', data.html);
-    }
+    const hadFocus = bottomReactions.contains(document.activeElement);
+    bottomReactions.querySelector('.select-reaction')?._tippy?.destroy();
+    const newBottomReactions = createElementFromHTML(data.html);
+    bottomReactions.replaceWith(newBottomReactions);
+    if (hadFocus) newBottomReactions.querySelector<HTMLElement>('.select-reaction')?.focus();
   });
 }