Clean up and add changelog entry

Author: krassowski

CHANGELOG.md

@@ -18,6 +18,7 @@
   - added icons for all the features and their commands ([#318])
   - refactored the codebase with a new architecture which allows dynamic feature, document widget adapter, and code editor registration ([#318])
   - the document in the connections list in the statusbar popover are now represented by easy-to-understand DocumentLocator (breadcrumbs) widget rather than an internal id ([bacc006])
+  - syntax highlighting mode is adjusted to the language with the majority of the code in an editor ([#319])
 
 - bug fixes
 
@@ -32,6 +33,7 @@
 [#301]: https://github.com/krassowski/jupyterlab-lsp/pull/301
 [#315]: https://github.com/krassowski/jupyterlab-lsp/pull/315
 [#318]: https://github.com/krassowski/jupyterlab-lsp/pull/318
+[#319]: https://github.com/krassowski/jupyterlab-lsp/pull/318
 [00448d0]: https://github.com/krassowski/jupyterlab-lsp/pull/318/commits/00448d0c55e7f9a1e7e0a5322f17610daac47dfe
 [bacc006]: https://github.com/krassowski/jupyterlab-lsp/pull/318/commits/bacc0066da0727ff7397574914bf0401e4d8f7cb
 [4e5b2ad]: https://github.com/krassowski/jupyterlab-lsp/pull/318/commits/4e5b2adf655120458cc8be4b453fe9a78c98e061

packages/jupyterlab-lsp/src/features/syntax_highlighting.ts

@@ -12,7 +12,6 @@ import {
   IFeatureLabIntegration,
   IFeatureSettings
 } from '../feature';
-import { VirtualDocument } from '../virtual/document';
 import { CodeMirrorEditor } from '@jupyterlab/codemirror';
 import CodeMirror from 'codemirror';
 import { IEditorMimeTypeService } from '@jupyterlab/codeeditor/lib/mimetype';
@@ -51,12 +50,11 @@ export class CMSyntaxHighlighting extends CodeMirrorIntegration {
     return CodeMirror.findModeByMIME(mimetype);
   }
 
-  update_mode(doc: VirtualDocument, changed_document: VirtualDocument) {
+  update_mode() {
     let root = this.virtual_document;
     for (let map of root.foreign_document_maps) {
       for (let [range, block] of map.entries()) {
         let ce_editor = block.editor;
-        // get the ce_editor from block
         let editor = (ce_editor as CodeMirrorEditor).editor;
         let lines = editor.getValue('\n');
         let total_area = lines.concat('').length;