Merge pull request #333 from meeseeksmachine/auto-backport-of-pr-330-on-0.3.x

Backport PR #330 on branch 0.3.x (Add `Accel Enter` shortcut to execute a cell)

Author: jtpio

packages/notebook-extension/src/index.ts

@@ -223,6 +223,28 @@ const kernelStatus: JupyterFrontEndPlugin<void> = {
   }
 };
 
+/**
+ * A plugin to add an extra shortcut to execute a cell in place via Cmd-Enter on Mac.
+ * TODO: switch to settings define menus when fixed upstream: https://github.com/jupyterlab/jupyterlab/issues/11754
+ */
+const runShortcut: JupyterFrontEndPlugin<void> = {
+  id: '@retrolab/notebook-extension:run-shortcut',
+  autoStart: true,
+  activate: (app: JupyterFrontEnd) => {
+    app.commands.addKeyBinding({
+      command: 'notebook:run-cell',
+      keys: ['Accel Enter'],
+      selector: '.jp-Notebook:focus'
+    });
+
+    app.commands.addKeyBinding({
+      command: 'notebook:run-cell',
+      keys: ['Accel Enter'],
+      selector: '.jp-Notebook.jp-mod-editMode'
+    });
+  }
+};
+
 /**
  * A plugin to enable scrolling for outputs by default.
  * Mimic the logic from the classic notebook, as found here:
@@ -319,6 +341,7 @@ const plugins: JupyterFrontEndPlugin<any>[] = [
   checkpoints,
   kernelLogo,
   kernelStatus,
+  runShortcut,
   scrollOutput
 ];