Added configureCommandStackOptions utility

packages/sprotty/src/base/commands/command-stack-options.ts

@@ -14,8 +14,8 @@
  * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
  ********************************************************************************/
 
-import { Container } from "inversify";
-import { safeAssign } from "sprotty-protocol/lib/utils/object";
+import { Container, interfaces } from 'inversify';
+import { safeAssign } from 'sprotty-protocol/lib/utils/object';
 import { TYPES } from '../types';
 
 /**
@@ -37,6 +37,31 @@ export interface CommandStackOptions {
     undoHistoryLimit: number
 }
 
+export const defaultCommandStackOptions: () => CommandStackOptions = () => ({
+    defaultDuration: 250,
+    undoHistoryLimit: 50
+});
+
+/**
+ * Utility function to partially set command stack options. Default values (from `defaultViewerOptions`) are used for
+ * options that are not specified.
+ */
+export function configureCommandStackOptions(context: { bind: interfaces.Bind, isBound: interfaces.IsBound, rebind: interfaces.Rebind },
+        options: Partial<CommandStackOptions>): void {
+    const opt: CommandStackOptions = {
+        ...defaultCommandStackOptions(),
+        ...options
+    };
+    if (context.isBound(TYPES.CommandStackOptions)) {
+        context.rebind(TYPES.CommandStackOptions).toConstantValue(opt);
+    } else {
+        context.bind(TYPES.CommandStackOptions).toConstantValue(opt);
+    }
+}
+
+/**
+ * Utility function to partially override the currently configured command stack options in a DI container.
+ */
 export function overrideCommandStackOptions(container: Container, options: Partial<CommandStackOptions>): CommandStackOptions {
     const defaultOptions = container.get<CommandStackOptions>(TYPES.CommandStackOptions);
     safeAssign(defaultOptions, options);

packages/sprotty/src/base/di.config.ts

@@ -21,7 +21,7 @@ import { LogLevel, NullLogger } from "../utils/logging";
 import { ActionDispatcher, IActionDispatcher } from "./actions/action-dispatcher";
 import { ActionHandlerRegistry } from "./actions/action-handler";
 import { CommandStack, ICommandStack } from "./commands/command-stack";
-import { CommandStackOptions } from "./commands/command-stack-options";
+import { CommandStackOptions, defaultCommandStackOptions } from "./commands/command-stack-options";
 import { SModelFactory, SModelRegistry } from './model/smodel-factory';
 import { AnimationFrameSyncer } from "./animations/animation-frame-syncer";
 import { IViewer, ModelViewer, HiddenModelViewer, PopupModelViewer, ModelRenderer, PatcherProvider } from "./views/viewer";
@@ -82,10 +82,7 @@ const defaultContainerModule = new ContainerModule((bind, _unbind, isBound) => {
             });
         };
     });
-    bind<CommandStackOptions>(TYPES.CommandStackOptions).toConstantValue({
-        defaultDuration: 250,
-        undoHistoryLimit: 50
-    });
+    bind<CommandStackOptions>(TYPES.CommandStackOptions).toConstantValue(defaultCommandStackOptions());
 
     // Viewer ---------------------------------------------
     bind(ModelViewer).toSelf().inSingletonScope();

packages/sprotty/src/base/views/viewer-options.ts

@@ -77,10 +77,11 @@ export function configureViewerOptions(context: { bind: interfaces.Bind, isBound
         ...defaultViewerOptions(),
         ...options
     };
-    if (context.isBound(TYPES.ViewerOptions))
+    if (context.isBound(TYPES.ViewerOptions)) {
         context.rebind(TYPES.ViewerOptions).toConstantValue(opt);
-    else
+    } else {
         context.bind(TYPES.ViewerOptions).toConstantValue(opt);
+    }
 }
 
 /**