make diagnostics settings language-overridable

package.json

@@ -73,7 +73,8 @@
         "tailwindCSS.validate": {
           "type": "boolean",
           "default": true,
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         },
         "tailwindCSS.lint.utilityConflicts": {
           "type": "string",
@@ -83,7 +84,8 @@
             "error"
           ],
           "default": "warning",
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         },
         "tailwindCSS.lint.unsupportedApply": {
           "type": "string",
@@ -93,7 +95,8 @@
             "error"
           ],
           "default": "error",
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         },
         "tailwindCSS.lint.unknownScreen": {
           "type": "string",
@@ -103,7 +106,8 @@
             "error"
           ],
           "default": "error",
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         },
         "tailwindCSS.lint.unknownVariant": {
           "type": "string",
@@ -113,7 +117,8 @@
             "error"
           ],
           "default": "error",
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         },
         "tailwindCSS.lint.unknownConfigKey": {
           "type": "string",
@@ -123,7 +128,8 @@
             "error"
           ],
           "default": "error",
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         },
         "tailwindCSS.lint.unsupportedTailwindDirective": {
           "type": "string",
@@ -133,7 +139,8 @@
             "error"
           ],
           "default": "error",
-          "markdownDescription": ""
+          "markdownDescription": "",
+          "scope": "language-overridable"
         }
       }
     }

src/extension.ts

@@ -11,6 +11,7 @@ import {
   OutputChannel,
   WorkspaceFolder,
   Uri,
+  ConfigurationScope,
 } from 'vscode'
 import {
   LanguageClient,
@@ -22,6 +23,7 @@ import { DEFAULT_LANGUAGES } from './lib/languages'
 import isObject from './util/isObject'
 import { dedupe, equal } from './util/array'
 import { createEmitter } from './lib/emitter'
+import { onMessage } from './lsp/notifications'
 
 const CLIENT_ID = 'tailwindcss-intellisense'
 const CLIENT_NAME = 'Tailwind CSS IntelliSense'
@@ -150,6 +152,9 @@ export function activate(context: ExtensionContext) {
     client.onReady().then(() => {
       let emitter = createEmitter(client)
       registerConfigErrorHandler(emitter)
+      onMessage(client, 'getConfiguration', async (scope) => {
+        return Workspace.getConfiguration('tailwindCSS', scope)
+      })
     })
 
     client.start()

src/lib/emitter.ts

@@ -1,6 +1,7 @@
 import mitt from 'mitt'
 import { LanguageClient } from 'vscode-languageclient'
 import crypto from 'crypto'
+import { Connection } from 'vscode-languageserver'
 
 export interface NotificationEmitter {
   on: (name: string, handler: (args: any) => void) => void
@@ -8,7 +9,9 @@ export interface NotificationEmitter {
   emit: (name: string, args: any) => Promise<any>
 }
 
-export function createEmitter(client: LanguageClient): NotificationEmitter {
+export function createEmitter(
+  client: LanguageClient | Connection
+): NotificationEmitter {
   const emitter = mitt()
   const registered: string[] = []
 
@@ -26,7 +29,7 @@ export function createEmitter(client: LanguageClient): NotificationEmitter {
     emitter.off(name, handler)
   }
 
-  const emit = (name: string, params: any) => {
+  const emit = (name: string, params: Record<string, any> = {}) => {
     return new Promise((resolve, _reject) => {
       const id = crypto.randomBytes(16).toString('hex')
       on(`${name}Response`, (result) => {

src/lsp/notifications.ts

@@ -1,9 +1,10 @@
 import { Connection } from 'vscode-languageserver'
+import { LanguageClient } from 'vscode-languageclient'
 
 export function onMessage(
-  connection: Connection,
+  connection: LanguageClient | Connection,
   name: string,
-  handler: (params: any) => any
+  handler: (params: any) => Thenable<Record<string, any>>
 ): void {
   connection.onNotification(`tailwindcss/${name}`, async (params: any) => {
     const { _id, ...rest } = params

src/lsp/providers/completionProvider.ts

@@ -618,11 +618,11 @@ async function provideEmmetCompletions(
   state: State,
   { position, textDocument }: CompletionParams
 ): Promise<CompletionList> {
-  let settings = await getDocumentSettings(state, textDocument.uri)
-  if (settings.emmetCompletions !== true) return null
-
   let doc = state.editor.documents.get(textDocument.uri)
 
+  let settings = await getDocumentSettings(state, doc)
+  if (settings.emmetCompletions !== true) return null
+
   const syntax = isHtmlContext(state, doc, position)
     ? 'html'
     : isJsContext(state, doc, position)

src/lsp/providers/diagnosticsProvider.ts

@@ -376,7 +376,7 @@ export async function provideDiagnostics(
   state: State,
   document: TextDocument
 ): Promise<void> {
-  const settings = await getDocumentSettings(state, document.uri)
+  const settings = await getDocumentSettings(state, document)
 
   const diagnostics: Diagnostic[] = settings.validate
     ? [

src/lsp/server.ts

@@ -27,9 +27,10 @@ import { provideHover } from './providers/hoverProvider'
 import { URI } from 'vscode-uri'
 import { getDocumentSettings } from './util/getDocumentSettings'
 import { provideDiagnostics } from './providers/diagnosticsProvider'
+import { createEmitter } from '../lib/emitter'
 
-let state: State = { enabled: false }
 let connection = createConnection(ProposedFeatures.all)
+let state: State = { enabled: false, emitter: createEmitter(connection) }
 let documents = new TextDocuments()
 let workspaceFolder: string | null
 
@@ -50,7 +51,7 @@ let globalSettings: Settings = defaultSettings
 let documentSettings: Map<string, Settings> = new Map()
 
 documents.onDidOpen((event) => {
-  getDocumentSettings(state, event.document.uri)
+  getDocumentSettings(state, event.document)
 })
 documents.onDidClose((event) => {
   documentSettings.delete(event.document.uri)
@@ -90,14 +91,23 @@ connection.onInitialize(
         // @ts-ignore
         onChange: (newState: State): void => {
           if (newState && !newState.error) {
-            state = { ...newState, enabled: true, editor: editorState }
+            state = {
+              ...newState,
+              enabled: true,
+              emitter: state.emitter,
+              editor: editorState,
+            }
             connection.sendNotification('tailwindcss/configUpdated', [
               state.configPath,
               state.config,
               state.plugins,
             ])
           } else {
-            state = { enabled: false, editor: editorState }
+            state = {
+              enabled: false,
+              emitter: state.emitter,
+              editor: editorState,
+            }
             if (newState && newState.error) {
               const payload: {
                 message: string
@@ -120,9 +130,14 @@ connection.onInitialize(
     )
 
     if (tailwindState) {
-      state = { enabled: true, editor: editorState, ...tailwindState }
+      state = {
+        enabled: true,
+        emitter: state.emitter,
+        editor: editorState,
+        ...tailwindState,
+      }
     } else {
-      state = { enabled: false, editor: editorState }
+      state = { enabled: false, emitter: state.emitter, editor: editorState }
     }
 
     return {

src/lsp/util/getDocumentSettings.ts

@@ -1,19 +1,19 @@
 import { State, Settings } from './state'
+import { TextDocument } from 'vscode-languageserver'
 
 export async function getDocumentSettings(
   state: State,
-  resource: string
+  document: TextDocument
 ): Promise<Settings> {
   if (!state.editor.capabilities.configuration) {
     return Promise.resolve(state.editor.globalSettings)
   }
-  let result = state.editor.documentSettings.get(resource)
+  let result = state.editor.documentSettings.get(document.uri)
   if (!result) {
-    result = await state.editor.connection.workspace.getConfiguration({
-      scopeUri: resource,
-      section: 'tailwindCSS',
+    result = await state.emitter.emit('getConfiguration', {
+      languageId: document.languageId,
     })
-    state.editor.documentSettings.set(resource, result)
+    state.editor.documentSettings.set(document.uri, result)
   }
   return result
 }

src/lsp/util/state.ts

@@ -1,4 +1,5 @@
 import { TextDocuments, Connection, Range } from 'vscode-languageserver'
+import { NotificationEmitter } from '../../lib/emitter'
 
 export type ClassNamesTree = {
   [key: string]: ClassNamesTree
@@ -43,6 +44,7 @@ export type Settings = {
 
 export type State = null | {
   enabled: boolean
+  emitter: NotificationEmitter
   version?: string
   configPath?: string
   config?: any