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ui: add scenario reorder buttons for condition agent#5720

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TianHougege wants to merge 1 commit intoFlowiseAI:mainfrom
TianHougege:feat/condition-agent-scenario-reorder
Open

ui: add scenario reorder buttons for condition agent#5720
TianHougege wants to merge 1 commit intoFlowiseAI:mainfrom
TianHougege:feat/condition-agent-scenario-reorder

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@TianHougege
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What

Add lightweight Up/Down controls to reorder Condition Agent scenarios.

Why

Up/Down buttons keep the behavior simple and predictable (no extra drag-and-drop deps).

Notes

  • Reorder is gated to Condition Agent scenarios only (by stable inputParam.name), so other array inputs are unaffected.
  • Uses UI-only stable keys (itemKeys) during reorder to avoid input/focus mismatch caused by key={index}.
  • Updates output anchors on reorder; does not auto-rewire edges (minimal & safe).

Demo

Kapture.2026-02-08.at.13.07.51.mp4

Closes #5699

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Summary of Changes

Hello @TianHougege, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly improves the usability of the 'Condition Agent' component by adding intuitive reordering capabilities for its scenarios. By providing simple Up/Down controls, users can now easily adjust the sequence of their conditional logic. The implementation is robust, focusing on stability during UI updates and ensuring the feature is applied precisely where needed without unintended side effects on other array-based inputs.

Highlights

  • Scenario Reordering: Introduced 'Up' and 'Down' buttons to allow users to reorder scenarios specifically within the 'Condition Agent' UI component, enhancing user experience for managing complex conditional logic.
  • Targeted Implementation: The reordering functionality is carefully scoped to only apply to 'Condition Agent' scenarios, identified by stable input parameter names, ensuring other array inputs remain unaffected.
  • Stable UI Keys: Implemented UI-only stable keys (UUIDs) for array items during reordering. This prevents input/focus mismatches and other rendering issues that can occur when using array indices as keys.
  • Output Anchor Updates: The system now updates output anchors when scenarios are reordered. Importantly, it does not automatically rewire existing edges, maintaining a minimal and safe approach to changes.
Changelog
  • packages/ui/src/ui-component/array/ArrayRenderer.jsx
    • Added imports for IconArrowUp and IconArrowDown from @tabler/icons-react to support the new reorder buttons.
    • Implemented state management for itemKeys to provide stable, UI-only identifiers for array items, crucial for correct rendering during reordering.
    • Introduced logic to conditionally enable reordering (enableReorder) based on whether the component is a 'Condition Agent' node and the specific scenario field name.
    • Developed swapInArray utility and moveItem function to handle the actual reordering of array items, itemKeys, and itemParameters.
    • Created handleMoveUp and handleMoveDown functions to trigger the reordering logic for individual items.
    • Modified the useEffect hook to initialize itemKeys with unique UUIDs when the component mounts or data changes, ensuring stable keys from the start.
    • Updated updateOutputAnchors to use the new isConditionAgentNode flag for more precise condition checking.
    • Adjusted handleAddItem and handleRemoveItem to correctly manage the itemKeys array alongside the arrayItems and itemParameters.
    • Changed the key prop for rendered array items from index to itemKeys[index] ?? index to leverage the new stable keys.
    • Added a new Box component containing 'Move up' and 'Move down' IconButtons, which are conditionally displayed when reordering is enabled.
    • Modified the rendering of itemParameters[index] to (itemParameters[index] || []) to safely handle cases where itemParameters[index] might be undefined.
Activity
  • The pull request introduces new UI functionality to reorder scenarios within the Condition Agent.
  • A demo video has been provided by the author to visually demonstrate the new feature.
  • The changes address and close issue Drag and Drop Scenario Reordering for Condition Agent node #5699, indicating a resolution to a previously identified need or bug.
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Code Review

This pull request introduces reordering functionality for Condition Agent scenarios using simple up/down buttons. The implementation correctly uses stable keys to prevent rendering issues during reordering, which is a great approach. My review includes a couple of suggestions to improve the code's design and maintainability. Specifically, I recommend refactoring some duplicated code into a helper function and suggest a more flexible, prop-based approach to enable the reorder feature, which would make the ArrayRenderer component more reusable.

Comment on lines +24 to +31
const isConditionAgentNode = data?.name === 'conditionAgentV2' || data?.name === 'conditionAgentAgentflow'

// Whitelist scenario field names across variants (keep this minimal)
// Include both legacy and UI field name for compatibility
const scenarioFieldNames = new Set(['conditionAgentScenarios', 'ConditionAgentScenarios'])

const isScenarioField = scenarioFieldNames.has(inputParam?.name)
const enableReorder = !isDocStore && isConditionAgentNode && isScenarioField
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medium

Hardcoding node names (conditionAgentV2, conditionAgentAgentflow) and input parameter names (conditionAgentScenarios, ConditionAgentScenarios) makes the ArrayRenderer component less reusable and tightly coupled to specific nodes. A more flexible approach would be to control this behavior via a prop on the inputParam object, for example reorderable: true. This would decouple ArrayRenderer and make it a more generic component that can be used for any array input that needs reordering capabilities.

Comment on lines +34 to +38
const swapInArray = (arr, i, j) => {
const next = [...arr]
;[next[i], next[j]] = [next[j], next[i]]
return next
}
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medium

To avoid duplicating the key generation logic found in useEffect (lines 130-141) and handleAddItem (lines 221-229), you can extract it into a single createKey helper function here. This function can then be reused in both places, improving code reuse and maintainability.

    const swapInArray = (arr, i, j) => {
        const next = [...arr]
        ;[next[i], next[j]] = [next[j], next[i]]
        return next
    }

    const createKey = () => {
        try {
            return crypto.randomUUID()
        } catch (e) {
            return 'key-' + Date.now() + '-' + Math.random()
        }
    }

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Drag and Drop Scenario Reordering for Condition Agent node

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