fix: Cleanup totally empty drafts on leave (#3310)

* fix: Cleanup totally empty drafts on leave

* cleanup

* fix: Add check the doc has never been saved after creation when auto-deleting

app/models/Document.ts

@@ -172,6 +172,11 @@ export default class Document extends BaseModel {
     return !this.publishedAt;
   }
 
+  @computed
+  get hasEmptyTitle(): boolean {
+    return this.title === "";
+  }
+
   @computed
   get titleWithDefault(): string {
     return this.title || "Untitled";

app/scenes/Document/components/Document.tsx

@@ -138,6 +138,19 @@ class DocumentScene extends React.Component<Props> {
     }
   }
 
+  componentWillUnmount() {
+    if (
+      this.isEmpty &&
+      this.props.document.createdBy.id === this.props.auth.user?.id &&
+      this.props.document.isDraft &&
+      this.props.document.isActive &&
+      this.props.document.hasEmptyTitle &&
+      this.props.document.isPersistedOnce
+    ) {
+      this.props.document.delete();
+    }
+  }
+
   replaceDocument = (template: Document | Revision) => {
     const editorRef = this.editor.current;
 
@@ -341,7 +354,8 @@ class DocumentScene extends React.Component<Props> {
     this.isEditorDirty = editorText !== document.text.trim();
 
     // a single hash is a doc with just an empty title
-    this.isEmpty = (!editorText || editorText === "#") && !this.title;
+    this.isEmpty =
+      (!editorText || editorText === "#" || editorText === "\\") && !this.title;
   };
 
   updateIsDirtyDebounced = debounce(this.updateIsDirty, 500);