From 0778a0e4d365c38e1c6e2c9352637cfb6e94e4f0 Mon Sep 17 00:00:00 2001
From: Domagoj Kriskovic <dom.kriskovic@overleaf.com>
Date: Mon, 15 Jun 2026 16:27:55 +0200
Subject: [PATCH] Revert "Add markdown link tooltip support to the visual
 editor"

This reverts commit 7ab4fd0793f057c86e4fc0307d81df376efe4d34.

GitOrigin-RevId: 625a5cbbb39832f6a32a26d2ad454669d0ed1846
---
 .../components/codemirror-command-tooltip.tsx | 17 ++------
 .../extensions/command-tooltip.ts             | 42 ++-----------------
 2 files changed, 8 insertions(+), 51 deletions(-)

diff --git a/services/web/frontend/js/features/source-editor/components/codemirror-command-tooltip.tsx b/services/web/frontend/js/features/source-editor/components/codemirror-command-tooltip.tsx
index 203b42c148..cb31899c25 100644
--- a/services/web/frontend/js/features/source-editor/components/codemirror-command-tooltip.tsx
+++ b/services/web/frontend/js/features/source-editor/components/codemirror-command-tooltip.tsx
@@ -5,10 +5,8 @@ import {
 } from './codemirror-context'
 import {
   closeCommandTooltip,
-  commandTooltipHandlers,
   commandTooltipState,
 } from '../extensions/command-tooltip'
-import type { CommandTooltipHandler } from '../extensions/command-tooltip'
 import ReactDOM from 'react-dom'
 import { HrefTooltipContent } from './command-tooltip/href-tooltip'
 import { UrlTooltipContent } from './command-tooltip/url-tooltip'
@@ -70,18 +68,14 @@ export const CodeMirrorCommandTooltip = memo(function CodeMirrorLinkTooltip() {
   }
 
   return ReactDOM.createPortal(
-    <CodeMirrorCommandTooltipContent
-      command={tooltipState.command}
-      handlers={state.facet(commandTooltipHandlers)}
-    />,
+    <CodeMirrorCommandTooltipContent command={tooltipState.command} />,
     tooltipView.dom
   )
 })
 
 const CodeMirrorCommandTooltipContent = memo<{
   command: string
-  handlers: readonly CommandTooltipHandler[]
-}>(function CodeMirrorCommandTooltipContent({ command, handlers }) {
+}>(function CodeMirrorCommandTooltipContent({ command }) {
   switch (command) {
     case 'HrefCommand':
       return <HrefTooltipContent />
@@ -95,10 +89,7 @@ const CodeMirrorCommandTooltipContent = memo<{
       return <InputTooltipContent />
     case 'Subfile':
       return <SubfileTooltipContent />
-    default: {
-      // Tooltips contributed by modules via the `commandTooltipHandlers` facet
-      const handler = handlers.find(handler => handler.command === command)
-      return handler ? handler.render() : null
-    }
+    default:
+      return null
   }
 })
diff --git a/services/web/frontend/js/features/source-editor/extensions/command-tooltip.ts b/services/web/frontend/js/features/source-editor/extensions/command-tooltip.ts
index b24f0b948a..567374bdf0 100644
--- a/services/web/frontend/js/features/source-editor/extensions/command-tooltip.ts
+++ b/services/web/frontend/js/features/source-editor/extensions/command-tooltip.ts
@@ -11,13 +11,11 @@ import {
 import {
   EditorSelection,
   EditorState,
-  Facet,
   Prec,
   SelectionRange,
   StateEffect,
   StateField,
 } from '@codemirror/state'
-import type { ReactNode } from 'react'
 import { ancestorOfNodeWithType } from '../utils/tree-query'
 import { ensureSyntaxTree, syntaxTree } from '@codemirror/language'
 import {
@@ -34,30 +32,12 @@ import {
 } from '@codemirror/autocomplete'
 import { SyntaxNode } from '@lezer/common'
 
-export type ActiveTooltip = {
+type ActiveTooltip = {
   range: SelectionRange
   tooltip: Tooltip
   command: string
 } | null
 
-export type CommandTooltipContext = {
-  state: EditorState
-  pos: number
-  value: ActiveTooltip
-  commandNode: SyntaxNode
-}
-
-// A command-tooltip handler lets a module add a tooltip for a syntax node type
-// that isn't part of the LaTeX `$CommandTooltipCommand` group (e.g. the
-// markdown `Link` node)
-export type CommandTooltipHandler = {
-  command: string
-  createTooltip: (context: CommandTooltipContext) => ActiveTooltip
-  render: () => ReactNode
-}
-
-export const commandTooltipHandlers = Facet.define<CommandTooltipHandler>()
-
 const createTooltipView = (
   update?: (update: ViewUpdate) => void
 ): TooltipView => {
@@ -67,7 +47,7 @@ const createTooltipView = (
   return { dom, update }
 }
 
-export const buildTooltip = (
+const buildTooltip = (
   command: string,
   pos: number,
   value: ActiveTooltip,
@@ -109,12 +89,7 @@ const createTooltipState = (
   const { main } = state.selection
   const pos = main.head
   const node = syntaxTree(state).resolveInner(pos, 0)
-  const moduleHandlers = state.facet(commandTooltipHandlers)
-  const commandNode = ancestorOfNodeWithType(
-    node,
-    '$CommandTooltipCommand',
-    ...moduleHandlers.map(handler => handler.command)
-  )
+  const commandNode = ancestorOfNodeWithType(node, '$CommandTooltipCommand')
   if (!commandNode) {
     return null
   }
@@ -124,15 +99,6 @@ const createTooltipState = (
   }
   const commandName = commandNode.name
 
-  // Module-provided handlers (e.g. the markdown link tooltip) take priority
-  // over the built-in LaTeX commands below.
-  const handler = moduleHandlers.find(
-    handler => handler.command === commandName
-  )
-  if (handler) {
-    return handler.createTooltip({ state, pos, value, commandNode })
-  }
-
   switch (commandName) {
     // a hyperlink (\href)
     case 'HrefCommand': {
@@ -351,7 +317,7 @@ export const commandTooltipState = (
   state: EditorState
 ): ActiveTooltip | undefined => state.field(commandTooltipStateField, false)
 
-export const firstInteractiveElement = (
+const firstInteractiveElement = (
   view: EditorView,
   tooltipState: NonNullable<ActiveTooltip>
 ) =>