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fix(workflows): disable start/end palette buttons when node already exists

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Prevents users from adding duplicate start or end nodes, which made the
workflow invalid with no way to recover since those node kinds are
protected from deletion.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
David Kaya
2026-04-05 21:37:01 +02:00
co-authored by Copilot
parent 55df0c3b61
commit e47835c1e8
2 changed files with 18 additions and 3 deletions
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src/renderer/components/workflow/WorkflowNodePalette.tsx
+10 -2
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@@ -4,6 +4,7 @@ import type { WorkflowNodeKind } from '@shared/domain/workflow';
interface WorkflowNodePaletteProps {
onAddNode: (kind: WorkflowNodeKind) => void;
disabledKinds?: ReadonlySet<WorkflowNodeKind>;
}
interface PaletteItem {
@@ -48,7 +49,7 @@ const paletteGroups: PaletteGroup[] = [
},
];
export function WorkflowNodePalette({ onAddNode }: WorkflowNodePaletteProps) {
export function WorkflowNodePalette({ onAddNode, disabledKinds }: WorkflowNodePaletteProps) {
return (
<div className="space-y-4 p-3">
<h4 className="text-[10px] font-semibold uppercase tracking-wider text-[var(--color-text-muted)]">
@@ -62,11 +63,18 @@ export function WorkflowNodePalette({ onAddNode }: WorkflowNodePaletteProps) {
<div className="space-y-0.5">
{group.items.map((item) => {
const Icon = item.icon;
const disabled = disabledKinds?.has(item.kind) ?? false;
return (
<button
className="flex w-full items-center gap-2 rounded-lg px-2 py-1.5 text-left text-[12px] text-[var(--color-text-secondary)] transition-all duration-200 hover:bg-[var(--color-surface-3)] hover:text-[var(--color-text-primary)]"
className={`flex w-full items-center gap-2 rounded-lg px-2 py-1.5 text-left text-[12px] transition-all duration-200 ${
disabled
? 'cursor-not-allowed text-[var(--color-text-muted)] opacity-40'
: 'text-[var(--color-text-secondary)] hover:bg-[var(--color-surface-3)] hover:text-[var(--color-text-primary)]'
}`}
disabled={disabled}
key={item.kind}
onClick={() => onAddNode(item.kind)}
title={disabled ? `${item.label} node already exists` : undefined}
type="button"
>
<Icon className={`size-3.5 ${item.color}`} />