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[3533] Add a dedicated component to handle diagram subscription
Bug: #3533 Signed-off-by: Michaël Charfadi <[email protected]>
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72 changes: 72 additions & 0 deletions
72
...ms/frontend/sirius-components-diagrams/src/representation/DiagramSubscriptionProvider.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Obeo. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
|
|
||
| import LinearProgress from '@mui/material/LinearProgress'; | ||
| import Typography from '@mui/material/Typography'; | ||
| import { memo, useEffect, useState } from 'react'; | ||
| import { DiagramContext } from '../contexts/DiagramContext'; | ||
| import { | ||
| GQLDiagramEventPayload, | ||
| GQLDiagramRefreshedEventPayload, | ||
| } from '../graphql/subscription/diagramEventSubscription.types'; | ||
| import { DiagramRenderer } from '../renderer/DiagramRenderer'; | ||
| import { DiagramSubscriptionProviderProps, DiagramSubscriptionState } from './DiagramSubscriptionProvider.types'; | ||
| import { useDiagramSubscription } from './useDiagramSubscription'; | ||
|
|
||
| const isDiagramRefreshedEventPayload = ( | ||
| payload: GQLDiagramEventPayload | null | ||
| ): payload is GQLDiagramRefreshedEventPayload => !!payload && payload.__typename === 'DiagramRefreshedEventPayload'; | ||
|
|
||
| export const DiagramSubscriptionProvider = memo( | ||
| ({ diagramId, editingContextId, readOnly }: DiagramSubscriptionProviderProps) => { | ||
| const [state, setState] = useState<DiagramSubscriptionState>({ | ||
| id: crypto.randomUUID(), | ||
| diagramRefreshedEventPayload: null, | ||
| complete: false, | ||
| message: '', | ||
| }); | ||
|
|
||
| const { loading, complete, payload } = useDiagramSubscription(editingContextId, diagramId); | ||
|
|
||
| useEffect(() => { | ||
| if (isDiagramRefreshedEventPayload(payload)) { | ||
| setState((prevState) => ({ ...prevState, diagramRefreshedEventPayload: payload })); | ||
| } | ||
| }, [payload]); | ||
|
|
||
| if (loading || !state.diagramRefreshedEventPayload) { | ||
| return <LinearProgress />; | ||
| } | ||
|
|
||
| if (complete) { | ||
| return ( | ||
| <div> | ||
| <Typography variant="subtitle2">The representation is not available anymore</Typography> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
||
| return ( | ||
| <DiagramContext.Provider | ||
| value={{ | ||
| editingContextId, | ||
| diagramId: diagramId, | ||
| refreshEventPayloadId: state.diagramRefreshedEventPayload.id, | ||
| payload: payload, | ||
| readOnly, | ||
| }}> | ||
| <DiagramRenderer diagramRefreshedEventPayload={state.diagramRefreshedEventPayload} /> | ||
| </DiagramContext.Provider> | ||
| ); | ||
| } | ||
| ); |
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