Examples with IToolSectionsProvider org.eclipse.sirius.components.collaborative.diagrams.api.IToolSectionsProvider used on opensource projects

Example 1 with IToolSectionsProvider

use of org.eclipse.sirius.components.collaborative.diagrams.api.IToolSectionsProvider in project sirius-components by eclipse-sirius.

the class GetToolSectionsEventHandler method handle.

@Override
public void handle(One<IPayload> payloadSink, Many<ChangeDescription> changeDescriptionSink, IEditingContext editingContext, IDiagramContext diagramContext, IDiagramInput diagramInput) {
    this.counter.increment();
    ChangeDescription changeDescription = new ChangeDescription(ChangeKind.NOTHING, editingContext.getId(), diagramInput);
    IPayload payload = null;
    if (diagramInput instanceof GetToolSectionsInput) {
        GetToolSectionsInput toolSectionsInput = (GetToolSectionsInput) diagramInput;
        String diagramElementId = toolSectionsInput.getDiagramElementId();
        Diagram diagram = diagramContext.getDiagram();
        // @formatter:off
        var optionalDiagramDescription = this.representationDescriptionSearchService.findById(editingContext, diagram.getDescriptionId()).filter(DiagramDescription.class::isInstance).map(DiagramDescription.class::cast);
        // @formatter:on
        if (optionalDiagramDescription.isPresent()) {
            DiagramDescription diagramDescription = optionalDiagramDescription.get();
            var optionalToolSectionsProvider = this.toolSectionsProviders.stream().filter(toolSectionProvider -> toolSectionProvider.canHandle(diagramDescription)).findFirst();
            var optionalTargetElement = this.findTargetElement(diagram, diagramElementId, editingContext);
            var optionalDiagramElement = this.findDiagramElement(diagram, diagramElementId);
            var optionalDiagramElementDescription = this.findDiagramElementDescription(diagram, diagramElementId, diagramDescription, optionalDiagramElement.orElse(null));
            if (optionalToolSectionsProvider.isPresent() && optionalTargetElement.isPresent() && optionalDiagramElementDescription.isPresent()) {
                IToolSectionsProvider toolSectionsProvider = optionalToolSectionsProvider.get();
                List<ToolSection> toolSections = toolSectionsProvider.handle(optionalTargetElement.get(), optionalDiagramElement.orElse(null), optionalDiagramElementDescription.get(), diagramDescription);
                payload = new GetToolSectionSuccessPayload(diagramInput.getId(), toolSections);
            }
        } else {
            String message = this.messageService.invalidInput(diagramInput.getClass().getSimpleName(), GetToolSectionsInput.class.getSimpleName());
            payload = new ErrorPayload(diagramInput.getId(), message);
        }
        payloadSink.tryEmitValue(payload);
        changeDescriptionSink.tryEmitNext(changeDescription);
    }
}