@openfin/workspace-platform

To implement your own handlers for Workspace Platform behavior, extend the provided class and override any methods you'd like to alter.

import * as WorkspacePlatform from '@openfin/workspace-platform';
import { UpdateSavedPageRequest } from '@client-platform/shapes';

const overrideCallback: WorkspacePlatform.BrowserOverrideCallback = async (
   WorkspacePlatformProvider
) => {
  class Override extends WorkspacePlatformProvider {
      // ovrride default behavior of updateSavedPage
      updateSavedPage = async (req: UpdateSavedPageRequest): Promise<void> => {
          console.log(`saving page ${req.page.pageId}`);
          // calling custom function to the save page here
      };

      // add a custom menu item in Global Context Menu
      openGlobalContextMenu(req: WorkspacePlatform.OpenGlobalContextMenuPayload, callerIdentity: any) {
           return super.openGlobalContextMenu(
              {
                  ...req,
                  template: [
                      ...req.template,
                      {
                          label: 'Sample custom global option',
                          data: {
                              type: GlobalContextMenuOptionType.Custom,
                              action: {
                                     // This action needs to be registed in customActions property in the call WorkspacePlatform.init
                                  id: 'sample-custom-global-menu-action'
                              }
                          }
                      }
                  ]
              },
              callerIdentity
          );
      }

      // add a custom menu item in View Tab Context Menu
      openViewTabContextMenu = async (payload: OpenViewTabContextMenuPayload, callerIdentity) => {
          return super.openViewTabContextMenu({
              ...payload,
              template: [
                  {
                      label: 'Sample View Tab Context Menu',
                      data: {
                          type: ViewTabMenuOptionType.Custom,
                          action: {
                                 // This action needs to be registed in customActions property in the call WorkspacePlatform.init
                              id: 'sample-viewtab-action',
                              customData: 'Custom View Tab Action'
                          }
                      }
                  },
                  ...payload.template
              ]
          }, callerIdentity);
      };

      // add a custom menu item in Save Context Menu
        openSaveButtonContextMenu = (req: WorkspacePlatform.OpenSaveButtonContextMenuPayload, callerIdentity: OpenFin.Identity) => {
          return super.openSaveButtonContextMenu(
              {
                  ...req,
                  template: [
                      ...req.template,
                      {
                          label: 'Save custom option',
                          data: {
                              type: SaveButtonContextMenuOptionType.Custom,
                              action: {
                                  id: 'sample-custom-action-name',
                                  customData: {
                                      someProp: 'Save Button task'
                                  }
                              }
                          }
                      }
                  ]
              },
              callerIdentity
             );
         }
     }
  }
  return new Override();
};

await WorkspacePlatform.init({
 browser: { overrideCallback },
      customActions: {
          'sample-custom-global-menu-action': (payload: CustomActionPayload) => {
              alert('This custom action works ' + JSON.stringify(payload));
              return 'someresponse';
          },
          'sample-viewtab-action': (payload: ViewTabCustomActionPayload) => {
              alert('This custom action works ' + JSON.stringify(payload));
              return 'someresponse';
          }
      }


});