chore: establish learning module baseline

OpenMAIC/lib/prosemirror/plugins/keymap.ts

@@ -0,0 +1,50 @@
+import { splitListItem, liftListItem, sinkListItem } from 'prosemirror-schema-list';
+import type { Schema } from 'prosemirror-model';
+import { undo, redo } from 'prosemirror-history';
+import { undoInputRule } from 'prosemirror-inputrules';
+import type { Command } from 'prosemirror-state';
+import {
+  toggleMark,
+  selectParentNode,
+  joinUp,
+  joinDown,
+  chainCommands,
+  newlineInCode,
+  createParagraphNear,
+  liftEmptyBlock,
+  splitBlockKeepMarks,
+} from 'prosemirror-commands';
+
+export const buildKeymap = (schema: Schema) => {
+  const keys: Record<string, Command> = {};
+  const bind = (key: string, cmd: Command) => (keys[key] = cmd);
+
+  bind('Alt-ArrowUp', joinUp);
+  bind('Alt-ArrowDown', joinDown);
+  bind('Mod-z', undo);
+  bind('Mod-y', redo);
+  bind('Backspace', undoInputRule);
+  bind('Escape', selectParentNode);
+  bind('Mod-b', toggleMark(schema.marks.strong));
+  bind('Mod-i', toggleMark(schema.marks.em));
+  bind('Mod-u', toggleMark(schema.marks.underline));
+  bind('Mod-d', toggleMark(schema.marks.strikethrough));
+  bind('Mod-e', toggleMark(schema.marks.code));
+  bind('Mod-;', toggleMark(schema.marks.superscript));
+  bind(`Mod-'`, toggleMark(schema.marks.subscript));
+  bind(
+    'Enter',
+    chainCommands(
+      splitListItem(schema.nodes.list_item),
+      newlineInCode,
+      createParagraphNear,
+      liftEmptyBlock,
+      splitBlockKeepMarks,
+    ),
+  );
+  bind('Mod-[', liftListItem(schema.nodes.list_item));
+  bind('Mod-]', sinkListItem(schema.nodes.list_item));
+  bind('Tab', sinkListItem(schema.nodes.list_item));
+
+  return keys;
+};