workflow-context-menu-item-provider.ts

/********************************************************************************
 * Copyright (c) 2022-2025 STMicroelectronics and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 ********************************************************************************/
import { Args, ContextMenuItemProvider, CreateNodeOperation, MenuItem, ModelState, Point, SetEditModeAction } from '@eclipse-glsp/server';
import { inject, injectable } from 'inversify';
import { GridSnapper } from '../handler/grid-snapper';
import { ModelTypes } from '../util/model-types';

@injectable()
export class WorkflowContextMenuItemProvider extends ContextMenuItemProvider {
    @inject(ModelState)
    protected modelState: ModelState;

    getItems(selectedElementIds: string[], position: Point, args?: Args): MenuItem[] {
        const editModeMenu: MenuItem = {
            id: 'editMode',
            label: 'Readonly Mode',
            isToggled: this.modelState.isReadonly,
            actions: [this.modelState.isReadonly ? SetEditModeAction.create('editable') : SetEditModeAction.create('readonly')]
        };

        if (this.modelState.isReadonly || selectedElementIds.length !== 0) {
            return [editModeMenu];
        }
        const snappedPosition = GridSnapper.snap(position);
        const newAutTask: MenuItem = {
            id: 'newAutoTask',
            label: 'Automated Task',
            actions: [CreateNodeOperation.create(ModelTypes.AUTOMATED_TASK, { location: snappedPosition })]
        };
        const newManTask: MenuItem = {
            id: 'newManualTask',
            label: 'Manual Task',
            actions: [CreateNodeOperation.create(ModelTypes.MANUAL_TASK, { location: snappedPosition })]
        };

        const hiddenItem: MenuItem = {
            id: 'hiddenItem',
            label: 'Should be hidden',
            actions: [],
            isVisible: false
        };
        const newChildMenu: MenuItem = {
            id: 'new',
            label: 'New',
            actions: [],
            children: [newAutTask, newManTask, hiddenItem],
            icon: 'add',
            group: '0_new'
        };

        return [newChildMenu, editModeMenu];
    }
}