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https://issues.apache.org/jira/browse/NIFI-16449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt Gilman reassigned NIFI-16449:
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Assignee: Matt Gilman
> Promote canvas Create/Edit dialogs to reusable output-driven components
> -----------------------------------------------------------------------
>
> Key: NIFI-16449
> URL: https://issues.apache.org/jira/browse/NIFI-16449
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core UI
> Reporter: Matt Gilman
> Assignee: Matt Gilman
> Priority: Major
>
> h2. Background
> Canvas component Create/Edit dialogs currently have mixed ownership.
> Create dialogs are located under the legacy flow-designer feature and
> dispatch flow-designer NgRx actions directly. Although Edit dialogs are under
> ui/common/component-dialogs, some still depend on page-specific state or
> behavior.
> This prevents the reusable canvas and connector canvas from using these
> dialogs with their own state, effects, API boundaries, error contexts, and
> saving state.
> NIFI-16447 exposes typed reusable-canvas mutation intent, including
> createConnectionRequested, but connection creation cannot be completed
> cleanly until the Create Connection dialog emits intent instead of
> dispatching flow-designer actions.
> h2. Goals
> * Make canvas Create/Edit dialogs reusable by flow designer, connector
> canvas, and other canvas hosts.
> * Make dialogs emit typed user intent without dispatching page-specific NgRx
> actions.
> * Let each host own persistence, saving state, error handling, and response
> reconciliation.
> * Preserve existing flow-designer behavior and appearance.
> h2. Scope
> h3. Shared dialog placement
> Move or consolidate the following flow-designer Create dialogs under
> ui/common/component-dialogs:
> * Create Processor
> * Create Port
> * Create Process Group
> * Create Remote Process Group
> * Create Connection
> Review related component-creation dialogs, including label creation/editing,
> grouping, and registry import, and promote those required by reusable-canvas
> hosts.
> h3. Dialog contracts
> * Replace direct Store dispatch with typed outputs.
> * Receive saving state, breadcrumbs, extension metadata, child ports,
> defaults, and other host-owned data through inputs or callbacks.
> * Keep form construction and validation inside the dialog.
> * Keep API requests and NgRx actions outside the dialog.
> * Support host-specific error contexts without coupling the dialog to one
> page.
> * Use canonical entity and request types from shared flow contracts.
> h3. Flow designer integration
> * Open shared dialogs from flow-designer effects.
> * Translate dialog outputs into existing flow-designer actions.
> * Preserve current behavior, appearance, defaults, error handling, and
> navigation.
> h3. Connector canvas integration
> * Open shared dialogs from connector effects.
> * Translate dialog outputs into connector-scoped typed actions.
> * Complete createConnectionRequested integration introduced by NIFI-16447.
> * Use connector-scoped services, saving state, error context, and
> revision-aware reconciliation.
> * Keep mutation commands gated by troubleshooting state and permissions.
> h3. Edit dialogs
> Review the existing shared Edit dialogs and remove remaining page-specific
> Store dispatch or state dependencies so both canvas hosts can use the same
> components.
> h2. Out of Scope
> * Entering or ending troubleshooting mode.
> * Changes to backend REST semantics.
> * New component operations such as start, stop, enable, or disable.
> * Visual redesign of the dialogs.
> * Changes to connection eligibility rules.
> h2. Acceptance Criteria
> * Shared Create/Edit dialogs do not dispatch flow-designer or connector NgRx
> actions directly.
> * Dialogs expose typed outputs for save/create intent.
> * Flow designer retains its current behavior and appearance.
> * Connector canvas can create a connection through its own actions, effects,
> service, and reducer.
> * Connector requests use the local client ID and canonical request payloads.
> * Successful connector requests reconcile typed entity collections.
> * Failed connector requests retain or restore optimistic UI state and use
> the connector error context.
> * Dialog cancellation cleans up temporary canvas previews.
> * Unit tests cover both flow-designer and connector-host integration.
> * Frontend lint, strict type-check, unit tests, and production build pass.
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