Expose undo/redo and canUndo/canRedo methods on model API (microsoft#213954)

expose undo/redo and canUndo/canRedo methods on model

Co-authored-by: Devlin Junker <[email protected]>

Author: devlinjunker

src/vs/editor/common/model.ts

@@ -1265,26 +1265,22 @@ export interface ITextModel {
 	/**
 	 * Undo edit operations until the previous undo/redo point.
 	 * The inverse edit operations will be pushed on the redo stack.
-	 * @internal
 	 */
 	undo(): void | Promise<void>;
 
 	/**
 	 * Is there anything in the undo stack?
-	 * @internal
 	 */
 	canUndo(): boolean;
 
 	/**
 	 * Redo edit operations until the next undo/redo point.
 	 * The inverse edit operations will be pushed on the undo stack.
-	 * @internal
 	 */
 	redo(): void | Promise<void>;
 
 	/**
 	 * Is there anything in the redo stack?
-	 * @internal
 	 */
 	canRedo(): boolean;
 

src/vs/monaco.d.ts

@@ -2372,6 +2372,24 @@ declare namespace monaco.editor {
 		 * This can have dire consequences on the undo stack! See @pushEOL for the preferred way.
 		 */
 		setEOL(eol: EndOfLineSequence): void;
+		/**
+		 * Undo edit operations until the previous undo/redo point.
+		 * The inverse edit operations will be pushed on the redo stack.
+		 */
+		undo(): void | Promise<void>;
+		/**
+		 * Is there anything in the undo stack?
+		 */
+		canUndo(): boolean;
+		/**
+		 * Redo edit operations until the next undo/redo point.
+		 * The inverse edit operations will be pushed on the undo stack.
+		 */
+		redo(): void | Promise<void>;
+		/**
+		 * Is there anything in the redo stack?
+		 */
+		canRedo(): boolean;
 		/**
 		 * An event emitted when the contents of the model have changed.
 		 * @event