From a0d17d036aea4f175054463bd139eb6ec55250d4 Mon Sep 17 00:00:00 2001
From: Jeremy Tuloup <jeremy.tuloup@gmail.com>
Date: Fri, 18 Mar 2022 17:38:36 +0100
Subject: [PATCH] Add support for opening a document with a factory

---
 packages/application-extension/src/index.ts | 26 ++++-----------------
 packages/docmanager-extension/src/index.ts  |  5 ++--
 2 files changed, 8 insertions(+), 23 deletions(-)

diff --git a/packages/application-extension/src/index.ts b/packages/application-extension/src/index.ts
index 7b567383a2f..40f3b2d00d8 100644
--- a/packages/application-extension/src/index.ts
+++ b/packages/application-extension/src/index.ts
@@ -45,16 +45,6 @@ import { DisposableDelegate, DisposableSet } from '@lumino/disposable';
 
 import { Widget } from '@lumino/widgets';
 
-/**
- * The default notebook factory.
- */
-const NOTEBOOK_FACTORY = 'Notebook';
-
-/**
- * The editor factory.
- */
-const EDITOR_FACTORY = 'Editor';
-
 /**
  * A regular expression to match path to notebooks and documents
  */
@@ -179,18 +169,12 @@ const opener: JupyterFrontEndPlugin<void> = {
         }
 
         const file = decodeURIComponent(path);
-        const ext = PathExt.extname(file);
+        const urlParams = new URLSearchParams(parsed.search);
+        const factory = urlParams.get('factory') ?? 'default';
         app.restored.then(async () => {
-          // TODO: get factory from file type instead?
-          if (ext === '.ipynb') {
-            docManager.open(file, NOTEBOOK_FACTORY, undefined, {
-              ref: '_noref'
-            });
-          } else {
-            docManager.open(file, EDITOR_FACTORY, undefined, {
-              ref: '_noref'
-            });
-          }
+          docManager.open(file, factory, undefined, {
+            ref: '_noref'
+          });
         });
       }
     });
diff --git a/packages/docmanager-extension/src/index.ts b/packages/docmanager-extension/src/index.ts
index 7c9dd1dce1c..cc8da84d8f3 100644
--- a/packages/docmanager-extension/src/index.ts
+++ b/packages/docmanager-extension/src/index.ts
@@ -40,8 +40,9 @@ const opener: JupyterFrontEndPlugin<void> = {
         return;
       }
       const ext = PathExt.extname(path);
-      const route = ext === '.ipynb' ? 'notebooks' : 'edit';
-      window.open(`${baseUrl}${route}/${path}`);
+      const route =
+        widgetName !== 'Notebook' || ext !== '.ipynb' ? 'edit' : 'notebooks';
+      window.open(`${baseUrl}${route}/${path}?factory=${widgetName}`);
       return undefined;
     };
   }