glsp#12 Add initial support for copy & paste (#25)

* glsp#12 Add initial support for copy & paste

* Fix broken delete context menu item

We've recently renamed the operation kind of delete. This
broke the reuse of Sprotty's delete context menu item provider.
To fix it, we have to provide our own provider with the correct
action.

client/workflow/workflow-sprotty/src/di.config.ts

@@ -27,7 +27,7 @@ import {
     decorationModule,
     defaultGLSPModule,
     defaultModule,
-    DeleteContextMenuItemProvider,
+    DeleteElementContextMenuItemProvider,
     DiamondNodeView,
     edgeLayoutModule,
     editLabelFeature,
@@ -42,6 +42,7 @@ import {
     GLSPGraph,
     glspMouseToolModule,
     glspSelectModule,
+    glspServerCopyPasteModule,
     GridSnapper,
     hoverModule,
     HtmlRoot,
@@ -91,7 +92,7 @@ const workflowDiagramModule = new ContainerModule((bind, unbind, isBound, rebind
     bind(GLSP_TYPES.IMovementRestrictor).to(NoOverlapMovmentRestrictor).inSingletonScope();
     bind(TYPES.ISnapper).to(GridSnapper);
     bind(TYPES.ICommandPaletteActionProvider).to(RevealNamedElementActionProvider);
-    bind(TYPES.IContextMenuItemProvider).to(DeleteContextMenuItemProvider);
+    bind(TYPES.IContextMenuItemProvider).to(DeleteElementContextMenuItemProvider);
     const context = { bind, unbind, isBound, rebind };
     configureModelElement(context, 'graph', GLSPGraph, SGraphView);
     configureModelElement(context, 'task:automated', TaskNode, TaskNodeView);
@@ -119,7 +120,7 @@ export default function createContainer(widgetId: string): Container {
 
     container.load(decorationModule, validationModule, defaultModule, glspMouseToolModule, defaultGLSPModule, glspSelectModule, boundsModule, viewportModule,
         hoverModule, fadeModule, exportModule, expandModule, openModule, buttonModule, modelSourceModule, labelEditModule, labelEditUiModule, glspEditLabelValidationModule,
-        workflowDiagramModule, saveModule, executeCommandModule, toolFeedbackModule, modelHintsModule, contextMenuModule, glspContextMenuModule,
+        workflowDiagramModule, saveModule, executeCommandModule, toolFeedbackModule, modelHintsModule, contextMenuModule, glspContextMenuModule, glspServerCopyPasteModule,
         commandPaletteModule, glspCommandPaletteModule, paletteModule, requestResponseModule, routingModule, edgeLayoutModule, zorderModule,
         layoutCommandsModule);