Add `onDidChangeMarkers` (fixes microsoft/monaco-editor#313)

src/vs/editor/standalone/browser/standaloneEditor.ts

@@ -182,6 +182,14 @@ export function getModelMarkers(filter: { owner?: string, resource?: URI, take?:
 	return StaticServices.markerService.get().read(filter);
 }
 
+/**
+ * Emitted when markers change for a model.
+ * @event
+ */
+export function onDidChangeMarkers(listener: (e: readonly URI[]) => void): IDisposable {
+	return StaticServices.markerService.get().onMarkerChanged(listener);
+}
+
 /**
  * Get the model that has `uri` if it exists.
  */
@@ -339,6 +347,7 @@ export function createMonacoEditorAPI(): typeof monaco.editor {
 		setModelLanguage: <any>setModelLanguage,
 		setModelMarkers: <any>setModelMarkers,
 		getModelMarkers: <any>getModelMarkers,
+		onDidChangeMarkers: <any>onDidChangeMarkers,
 		getModels: <any>getModels,
 		getModel: <any>getModel,
 		onDidCreateModel: <any>onDidCreateModel,

src/vs/monaco.d.ts

@@ -898,6 +898,12 @@ declare namespace monaco.editor {
 		take?: number;
 	}): IMarker[];
 
+	/**
+	 * Emitted when markers change for a model.
+	 * @event
+	 */
+	export function onDidChangeMarkers(listener: (e: readonly Uri[]) => void): IDisposable;
+
 	/**
 	 * Get the model that has `uri` if it exists.
 	 */