fix(code/find): crashes at dialog shown

apps/client/src/components/note_context.ts

@@ -11,6 +11,7 @@ import type { ViewScope } from "../services/link.js";
 import type FNote from "../entities/fnote.js";
 import type TypeWidget from "../widgets/type_widgets/type_widget.js";
 import type { CKTextEditor } from "@triliumnext/ckeditor5";
+import type CodeMirror from "@triliumnext/codemirror";
 
 export interface SetNoteOpts {
     triggerSwitchEvent?: unknown;
@@ -312,7 +313,7 @@ class NoteContext extends Component implements EventListener<"entitiesReloaded">
 
     async getCodeEditor() {
         return this.timeout(
-            new Promise<CodeMirrorInstance>((resolve) =>
+            new Promise<CodeMirror>((resolve) =>
                 appContext.triggerCommand("executeWithCodeEditor", {
                     resolve,
                     ntxId: this.ntxId

apps/client/src/widgets/find.ts

@@ -203,7 +203,7 @@ export default class FindWidget extends NoteContextAwareWidget {
                 selectedText = $content.find('.cm-matchhighlight').first().text();
             } else {
                 const codeEditor = await this.noteContext.getCodeEditor();
-                selectedText = codeEditor.getSelection();
+                selectedText = codeEditor.getSelectedText();
             }
         } else {
             selectedText = window.getSelection()?.toString() || "";

packages/codemirror/src/index.ts

@@ -104,6 +104,17 @@ export default class CodeMirror extends EditorView {
         return this.state.doc.toString();
     }
 
+    /**
+     * Returns the currently selected text.
+     *
+     * If there are multiple selections, all of them will be concatenated.
+     */
+    getSelectedText() {
+        return this.state.selection.ranges
+            .map((range) => this.state.sliceDoc(range.from, range.to))
+            .join("");
+    }
+
     setText(content: string) {
         this.dispatch({
             changes: {