feat(keybind): add code folds keybinds

package.json

@@ -197,5 +197,10 @@
     "@codemirror/state": "^6.6.0",
     "@codemirror/view": "^6.43.1"
   },
-  "browserslist": "cover 100%"
+  "browserslist": "cover 100%",
+  "allowScripts": {
+    "@parcel/watcher@2.5.6": true,
+    "core-js@3.49.0": true,
+    "core-js-pure@3.49.0": true
+  }
 }

src/cm/commandRegistry.js

@@ -53,7 +53,13 @@ import {
 	toggleBlockComment,
 	undo,
 } from "@codemirror/commands";
-import { indentUnit as indentUnitFacet } from "@codemirror/language";
+import {
+	foldAll,
+	foldCode,
+	indentUnit as indentUnitFacet,
+	unfoldAll,
+	unfoldCode,
+} from "@codemirror/language";
 import {
 	closeLintPanel,
 	forceLinting,
@@ -946,6 +952,51 @@ function registerCoreCommands() {
 			return simplifySelection(resolvedView);
 		},
 	});
+	addCommand({
+		name: "foldCode",
+		description: "Fold the Lines that are selected (if possible)",
+		readOnly: true,
+		requiresView: true,
+		run(view) {
+			const resolvedView = resolveView(view);
+			if (!resolvedView) return false;
+			return foldCode(resolvedView);
+		},
+	});
+	addCommand({
+		name: "unfoldCode",
+		description: "Unfold folded ranges on selected lines.",
+		readOnly: true,
+		requiresView: true,
+		run(view) {
+			const resolvedView = resolveView(view);
+			if (!resolvedView) return false;
+			return unfoldCode(resolvedView);
+		},
+	});
+	addCommand({
+		name: "foldAll",
+		description:
+			"Fold all - top-level ranges usually depends on the syntax tree. It may not work reliably if the document isn't fully parsed (e.g., just initialized or too large to parse completely)",
+		readOnly: true,
+		requiresView: true,
+		run(view) {
+			const resolvedView = resolveView(view);
+			if (!resolvedView) return false;
+			return foldAll(resolvedView);
+		},
+	});
+	addCommand({
+		name: "unfoldAll",
+		description: "Unfold all folded code.",
+		readOnly: true,
+		requiresView: true,
+		run(view) {
+			const resolvedView = resolveView(view);
+			if (!resolvedView) return false;
+			return unfoldAll(resolvedView);
+		},
+	});
 }
 
 function registerLspCommands() {

src/lib/keyBindings.js

@@ -517,6 +517,35 @@ const APP_BINDING_CONFIG = [
 		editorOnly: true,
 		action: "format",
 	},
+	{
+		name: "foldCode",
+		description: "Fold code",
+		key: "Ctrl-Shift-[",
+		readOnly: true,
+		editorOnly: true,
+	},
+	{
+		name: "unfoldCode",
+		description: "Unfold code",
+		key: "Ctrl-Shift-]",
+		readOnly: true,
+		editorOnly: true,
+	},
+	{
+		name: "foldAll",
+		description:
+			"Fold all - top-level ranges usually depends on the syntax tree. It may not work reliably if the document isn't fully parsed (e.g., just initialized or too large to parse completely)",
+		key: "Ctrl-Alt-[",
+		readOnly: true,
+		editorOnly: true,
+	},
+	{
+		name: "unfoldAll",
+		description: "Unfold all folded code",
+		key: "Ctrl-Alt-]",
+		readOnly: true,
+		editorOnly: true,
+	},
 ];
 
 const APP_KEY_BINDINGS = buildAppBindings(APP_BINDING_CONFIG);