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Implement the 032-inline-confirm-buttons feature that replaces single-click destructive actions with a reusable ConfirmButton component providing inline two-step confirmation (click to arm, click to execute), applied to the remove combatant and clear encounter buttons, with CSS scale pulse animation, 5-second auto-revert, click-outside/Escape/blur dismissal, full keyboard accessibility, and 13 unit tests via @testing-library/react

Browse Source 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Lukas
2026-03-11 09:51:21 +01:00
parent d101906776
commit 0747d044f3
17 changed files with 1364 additions and 32 deletions
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7
CLAUDE.md
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@@ -79,3 +79,10 @@ The constitution (`.specify/memory/constitution.md`) governs all feature work:
4. **MVP Baseline** — Say "MVP baseline does not include X", never permanent bans. 4. **MVP Baseline** — Say "MVP baseline does not include X", never permanent bans.
5. **Every feature begins with a spec** — Spec → Plan → Tasks → Implementation. 5. **Every feature begins with a spec** — Spec → Plan → Tasks → Implementation.
## Active Technologies
- TypeScript 5.8 (strict mode, `verbatimModuleSyntax`) + React 19, Tailwind CSS v4, Lucide React, class-variance-authority (cva) (032-inline-confirm-buttons)
- N/A (no persistence changes — confirm state is ephemeral) (032-inline-confirm-buttons)
## Recent Changes
- 032-inline-confirm-buttons: Added TypeScript 5.8 (strict mode, `verbatimModuleSyntax`) + React 19, Tailwind CSS v4, Lucide React, class-variance-authority (cva)

3
apps/web/package.json
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@@ -21,9 +21,12 @@
}, },
"devDependencies": { "devDependencies": {
"@tailwindcss/vite": "^4.2.1", "@tailwindcss/vite": "^4.2.1",
"@testing-library/jest-dom": "^6.9.1",
"@testing-library/react": "^16.3.2",
"@types/react": "^19.0.0", "@types/react": "^19.0.0",
"@types/react-dom": "^19.0.0", "@types/react-dom": "^19.0.0",
"@vitejs/plugin-react": "^4.3.0", "@vitejs/plugin-react": "^4.3.0",
"jsdom": "^28.1.0",
"tailwindcss": "^4.2.1", "tailwindcss": "^4.2.1",
"vite": "^6.2.0" "vite": "^6.2.0"
} }

198
apps/web/src/__tests__/confirm-button.test.tsx Normal file
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@@ -0,0 +1,198 @@
// @vitest-environment jsdom
import {
act,
cleanup,
fireEvent,
render,
screen,
} from "@testing-library/react";
import "@testing-library/jest-dom/vitest";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import { ConfirmButton } from "../components/ui/confirm-button";
function XIcon() {
return <span data-testid="x-icon">X</span>;
}
function renderButton(
props: Partial<Parameters<typeof ConfirmButton>[0]> = {},
) {
const onConfirm = props.onConfirm ?? vi.fn();
render(
<ConfirmButton
icon={<XIcon />}
label="Remove combatant"
onConfirm={onConfirm}
{...props}
/>,
);
return { onConfirm };
}
describe("ConfirmButton", () => {
beforeEach(() => {
vi.useFakeTimers();
});
afterEach(() => {
vi.useRealTimers();
cleanup();
});
it("renders the default icon in idle state", () => {
renderButton();
expect(screen.getByTestId("x-icon")).toBeTruthy();
expect(screen.getByRole("button")).toHaveAttribute(
"aria-label",
"Remove combatant",
);
});
it("transitions to confirm state with Check icon on first click", () => {
renderButton();
fireEvent.click(screen.getByRole("button"));
expect(screen.queryByTestId("x-icon")).toBeNull();
expect(screen.getByRole("button")).toHaveAttribute(
"aria-label",
"Confirm remove combatant",
);
expect(screen.getByRole("button").className).toContain("bg-destructive");
});
it("calls onConfirm on second click in confirm state", () => {
const { onConfirm } = renderButton();
const button = screen.getByRole("button");
fireEvent.click(button);
fireEvent.click(button);
expect(onConfirm).toHaveBeenCalledOnce();
});
it("auto-reverts after 5 seconds", () => {
renderButton();
fireEvent.click(screen.getByRole("button"));
expect(screen.queryByTestId("x-icon")).toBeNull();
act(() => {
vi.advanceTimersByTime(5000);
});
expect(screen.getByTestId("x-icon")).toBeTruthy();
});
it("reverts on Escape key", () => {
renderButton();
fireEvent.click(screen.getByRole("button"));
expect(screen.queryByTestId("x-icon")).toBeNull();
fireEvent.keyDown(document, { key: "Escape" });
expect(screen.getByTestId("x-icon")).toBeTruthy();
});
it("reverts on click outside", () => {
renderButton();
fireEvent.click(screen.getByRole("button"));
expect(screen.queryByTestId("x-icon")).toBeNull();
fireEvent.mouseDown(document.body);
expect(screen.getByTestId("x-icon")).toBeTruthy();
});
it("does not enter confirm state when disabled", () => {
renderButton({ disabled: true });
fireEvent.click(screen.getByRole("button"));
expect(screen.getByTestId("x-icon")).toBeTruthy();
});
it("cleans up timer on unmount", () => {
const clearTimeoutSpy = vi.spyOn(globalThis, "clearTimeout");
renderButton();
fireEvent.click(screen.getByRole("button"));
cleanup();
expect(clearTimeoutSpy).toHaveBeenCalled();
clearTimeoutSpy.mockRestore();
});
it("manages independent instances separately", () => {
const onConfirm1 = vi.fn();
const onConfirm2 = vi.fn();
render(
<>
<ConfirmButton
icon={<span data-testid="icon-1">1</span>}
label="Remove first"
onConfirm={onConfirm1}
/>
<ConfirmButton
icon={<span data-testid="icon-2">2</span>}
label="Remove second"
onConfirm={onConfirm2}
/>
</>,
);
const buttons = screen.getAllByRole("button");
fireEvent.click(buttons[0]);
// First is confirming, second is still idle
expect(screen.queryByTestId("icon-1")).toBeNull();
expect(screen.getByTestId("icon-2")).toBeTruthy();
});
// T008: Keyboard-specific tests
it("Enter key triggers confirm state", () => {
renderButton();
const button = screen.getByRole("button");
// Native button handles Enter via click event
fireEvent.click(button);
expect(screen.queryByTestId("x-icon")).toBeNull();
expect(button).toHaveAttribute("aria-label", "Confirm remove combatant");
});
it("Enter in confirm state calls onConfirm", () => {
const { onConfirm } = renderButton();
const button = screen.getByRole("button");
fireEvent.click(button); // enter confirm state
fireEvent.click(button); // confirm
expect(onConfirm).toHaveBeenCalledOnce();
});
it("Escape in confirm state reverts", () => {
renderButton();
fireEvent.click(screen.getByRole("button"));
fireEvent.keyDown(document, { key: "Escape" });
expect(screen.getByTestId("x-icon")).toBeTruthy();
expect(screen.getByRole("button")).toHaveAttribute(
"aria-label",
"Remove combatant",
);
});
it("blur event reverts confirm state", () => {
renderButton();
const button = screen.getByRole("button");
fireEvent.click(button);
expect(screen.queryByTestId("x-icon")).toBeNull();
fireEvent.blur(button);
expect(screen.getByTestId("x-icon")).toBeTruthy();
});
});

21
apps/web/src/components/combatant-row.tsx
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@@ -11,7 +11,7 @@ import { ConditionPicker } from "./condition-picker";
import { ConditionTags } from "./condition-tags"; import { ConditionTags } from "./condition-tags";
import { D20Icon } from "./d20-icon"; import { D20Icon } from "./d20-icon";
import { HpAdjustPopover } from "./hp-adjust-popover"; import { HpAdjustPopover } from "./hp-adjust-popover";
import { Button } from "./ui/button"; import { ConfirmButton } from "./ui/confirm-button";
import { Input } from "./ui/input"; import { Input } from "./ui/input";
interface Combatant { interface Combatant {
@@ -543,19 +543,12 @@ export function CombatantRow({
</div> </div>
{/* Actions */} {/* Actions */}
<Button <ConfirmButton
variant="ghost" icon={<X size={16} />}
size="icon" label="Remove combatant"
className="h-7 w-7 text-muted-foreground hover:text-hover-destructive opacity-0 pointer-events-none group-hover:opacity-100 group-hover:pointer-events-auto focus:opacity-100 focus:pointer-events-auto transition-opacity" onConfirm={() => onRemove(id)}
onClick={(e) => { className="h-7 w-7 text-muted-foreground opacity-0 pointer-events-none group-hover:opacity-100 group-hover:pointer-events-auto focus:opacity-100 focus:pointer-events-auto transition-opacity"
e.stopPropagation(); />
onRemove(id);
}}
title="Remove combatant"
aria-label="Remove combatant"
>
<X size={16} />
</Button>
</div> </div>
</div> </div>
); );

15
apps/web/src/components/turn-navigation.tsx
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@@ -2,6 +2,7 @@ import type { Encounter } from "@initiative/domain";
import { Settings, StepBack, StepForward, Trash2 } from "lucide-react"; import { Settings, StepBack, StepForward, Trash2 } from "lucide-react";
import { D20Icon } from "./d20-icon"; import { D20Icon } from "./d20-icon";
import { Button } from "./ui/button"; import { Button } from "./ui/button";
import { ConfirmButton } from "./ui/confirm-button";
interface TurnNavigationProps { interface TurnNavigationProps {
encounter: Encounter; encounter: Encounter;
@@ -74,15 +75,13 @@ export function TurnNavigation({
> >
<Settings className="h-5 w-5" /> <Settings className="h-5 w-5" />
</Button> </Button>
<Button <ConfirmButton
variant="ghost" icon={<Trash2 className="h-5 w-5" />}
size="icon" label="Clear encounter"
className="h-8 w-8 text-muted-foreground hover:text-hover-destructive" onConfirm={onClearEncounter}
onClick={onClearEncounter}
disabled={!hasCombatants} disabled={!hasCombatants}
> className="h-8 w-8 text-muted-foreground"
<Trash2 className="h-5 w-5" /> />
</Button>
</div> </div>
<Button <Button
variant="outline" variant="outline"

107
apps/web/src/components/ui/confirm-button.tsx Normal file
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@@ -0,0 +1,107 @@
import { Check } from "lucide-react";
import {
type ReactElement,
useCallback,
useEffect,
useRef,
useState,
} from "react";
import { cn } from "../../lib/utils";
import { Button } from "./button";
interface ConfirmButtonProps {
readonly onConfirm: () => void;
readonly icon: ReactElement;
readonly label: string;
readonly className?: string;
readonly disabled?: boolean;
}
const REVERT_TIMEOUT_MS = 5_000;
export function ConfirmButton({
onConfirm,
icon,
label,
className,
disabled,
}: ConfirmButtonProps) {
const [isConfirming, setIsConfirming] = useState(false);
const timerRef = useRef<ReturnType<typeof setTimeout>>(undefined);
const wrapperRef = useRef<HTMLDivElement>(null);
const revert = useCallback(() => {
setIsConfirming(false);
clearTimeout(timerRef.current);
}, []);
// Cleanup timer on unmount
useEffect(() => {
return () => clearTimeout(timerRef.current);
}, []);
// Click-outside listener when confirming
useEffect(() => {
if (!isConfirming) return;
function handleMouseDown(e: MouseEvent) {
if (
wrapperRef.current &&
!wrapperRef.current.contains(e.target as Node)
) {
revert();
}
}
function handleKeyDown(e: KeyboardEvent) {
if (e.key === "Escape") {
revert();
}
}
document.addEventListener("mousedown", handleMouseDown);
document.addEventListener("keydown", handleKeyDown);
return () => {
document.removeEventListener("mousedown", handleMouseDown);
document.removeEventListener("keydown", handleKeyDown);
};
}, [isConfirming, revert]);
const handleClick = useCallback(
(e: React.MouseEvent) => {
e.stopPropagation();
if (disabled) return;
if (isConfirming) {
revert();
onConfirm();
} else {
setIsConfirming(true);
clearTimeout(timerRef.current);
timerRef.current = setTimeout(revert, REVERT_TIMEOUT_MS);
}
},
[isConfirming, disabled, onConfirm, revert],
);
return (
<div ref={wrapperRef} className="inline-flex">
<Button
variant="ghost"
size="icon"
className={cn(
className,
isConfirming &&
"bg-destructive text-primary-foreground rounded-md animate-confirm-pulse hover:bg-destructive hover:text-primary-foreground",
)}
onClick={handleClick}
onBlur={revert}
disabled={disabled}
aria-label={isConfirming ? `Confirm ${label.toLowerCase()}` : label}
title={isConfirming ? `Confirm ${label.toLowerCase()}` : label}
>
{isConfirming ? <Check size={16} /> : icon}
</Button>
</div>
);
}

4
apps/web/src/hooks/use-encounter.ts
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@@ -226,10 +226,6 @@ export function useEncounter() {
); );
const clearEncounter = useCallback(() => { const clearEncounter = useCallback(() => {
if (!window.confirm("Clear the entire encounter? This cannot be undone.")) {
return;
}
const result = clearEncounterUseCase(makeStore()); const result = clearEncounterUseCase(makeStore());
if (isDomainError(result)) { if (isDomainError(result)) {

16
apps/web/src/index.css
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@@ -68,6 +68,22 @@
animation: slide-in-right 200ms ease-out; animation: slide-in-right 200ms ease-out;
} }
@keyframes confirm-pulse {
0% {
scale: 1;
}
50% {
scale: 1.15;
}
100% {
scale: 1;
}
}
@utility animate-confirm-pulse {
animation: confirm-pulse 300ms ease-out;
}
@utility animate-concentration-pulse { @utility animate-concentration-pulse {
animation: animation:
concentration-shake 450ms ease-out, concentration-shake 450ms ease-out,

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pnpm-lock.yaml generated
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specs/032-inline-confirm-buttons/checklists/requirements.md Normal file
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@@ -0,0 +1,35 @@
# Specification Quality Checklist: Inline Confirmation Buttons
**Purpose**: Validate specification completeness and quality before proceeding to planning
**Created**: 2026-03-11
**Feature**: [spec.md](../spec.md)
## Content Quality
- [x] No implementation details (languages, frameworks, APIs)
- [x] Focused on user value and business needs
- [x] Written for non-technical stakeholders
- [x] All mandatory sections completed
## Requirement Completeness
- [x] No [NEEDS CLARIFICATION] markers remain
- [x] Requirements are testable and unambiguous
- [x] Success criteria are measurable
- [x] Success criteria are technology-agnostic (no implementation details)
- [x] All acceptance scenarios are defined
- [x] Edge cases are identified
- [x] Scope is clearly bounded
- [x] Dependencies and assumptions identified
## Feature Readiness
- [x] All functional requirements have clear acceptance criteria
- [x] User scenarios cover primary flows
- [x] Feature meets measurable outcomes defined in Success Criteria
- [x] No implementation details leak into specification
## Notes
- All items pass. Spec is ready for `/speckit.clarify` or `/speckit.plan`.
- The Assumptions section mentions Lucide and CSS as implementation context but keeps it appropriately scoped to assumptions rather than requirements.

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specs/032-inline-confirm-buttons/data-model.md Normal file
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@@ -0,0 +1,37 @@
# Data Model: Inline Confirmation Buttons
## Entities
### ConfirmButton State
The `ConfirmButton` manages a single piece of ephemeral UI state:
| Field | Type | Description |
|-------|------|-------------|
| isConfirming | boolean | Whether the button is in the "confirm" (armed) state |
**State transitions**:
```
idle ──[first click/Enter/Space]──▶ confirming
confirming ──[second click/Enter/Space]──▶ action executed → idle (or unmount)
confirming ──[5s timeout]──▶ idle
confirming ──[Escape]──▶ idle
confirming ──[click outside]──▶ idle
confirming ──[focus loss]──▶ idle
```
### ConfirmButton Props (Component Interface)
| Prop | Type | Required | Description |
|------|------|----------|-------------|
| onConfirm | () => void | yes | Callback executed on confirmed second activation |
| icon | ReactElement | yes | The default icon to display (e.g., X, Trash2) |
| label | string | yes | Accessible label for the button (used in aria-label and title) |
| className | string | no | Additional CSS classes passed through to the underlying button |
| disabled | boolean | no | When true, the button cannot enter confirm state |
**Notes**:
- No domain entities are created or modified by this feature.
- The confirm state is purely ephemeral — never persisted, never serialized.
- The component does not introduce any new domain types or application-layer changes.

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specs/032-inline-confirm-buttons/plan.md Normal file
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@@ -0,0 +1,65 @@
# Implementation Plan: Inline Confirmation Buttons
**Branch**: `032-inline-confirm-buttons` | **Date**: 2026-03-11 | **Spec**: [spec.md](./spec.md)
**Input**: Feature specification from `/specs/032-inline-confirm-buttons/spec.md`
## Summary
Replace single-click destructive actions and `window.confirm()` dialogs with a reusable `ConfirmButton` component that provides inline two-step confirmation. First click arms the button (checkmark icon, red background, scale pulse animation); second click executes the action. Auto-reverts after 5 seconds. Applied to the remove combatant (X) and clear encounter (trash) buttons. Fully keyboard-accessible.
## Technical Context
**Language/Version**: TypeScript 5.8 (strict mode, `verbatimModuleSyntax`)
**Primary Dependencies**: React 19, Tailwind CSS v4, Lucide React, class-variance-authority (cva)
**Storage**: N/A (no persistence changes — confirm state is ephemeral)
**Testing**: Vitest (unit tests for state logic; manual testing for animation/visual)
**Target Platform**: Web (modern browsers)
**Project Type**: Web application (monorepo: apps/web + packages/domain + packages/application)
**Performance Goals**: Instant visual feedback (<16ms frame budget for animation)
**Constraints**: No new runtime dependencies; CSS-only animation
**Scale/Scope**: 1 new component, 3 modified files, 1 CSS animation added
## Constitution Check
*GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
| Principle | Status | Notes |
|-----------|--------|-------|
| I. Deterministic Domain Core | PASS | No domain changes. Confirm state is purely UI-local. |
| II. Layered Architecture | PASS | ConfirmButton lives in adapter layer (apps/web/src/components/ui/). Confirmation logic moves from application hook to UI component where it belongs. No reverse dependencies. |
| III. Clarification-First | PASS | Spec is fully specified with zero NEEDS CLARIFICATION markers. |
| IV. Escalation Gates | PASS | All work is within spec scope. |
| V. MVP Baseline Language | PASS | Spec uses "MVP baseline does not include" for undo and configurability. |
| VI. No Gameplay Rules | PASS | No gameplay mechanics involved. |
**Post-Phase 1 re-check**: All gates still pass. Moving `window.confirm()` out of `use-encounter.ts` into a UI component improves layer separation — confirmation is a UI concern, not an application concern.
## Project Structure
### Documentation (this feature)
```text
specs/032-inline-confirm-buttons/
├── plan.md # This file
├── research.md # Phase 0 output
├── data-model.md # Phase 1 output
├── quickstart.md # Phase 1 output
└── tasks.md # Phase 2 output (/speckit.tasks — NOT created by /speckit.plan)
```
### Source Code (repository root)
```text
apps/web/src/
├── components/
│ ├── ui/
│ │ ├── button.tsx # Existing — wrapped by ConfirmButton
│ │ └── confirm-button.tsx # NEW — reusable two-step confirm component
│ ├── combatant-row.tsx # MODIFIED — use ConfirmButton for remove
│ └── turn-navigation.tsx # MODIFIED — use ConfirmButton for trash
├── hooks/
│ └── use-encounter.ts # MODIFIED — remove window.confirm()
└── index.css # MODIFIED — add scale pulse keyframe
```
**Structure Decision**: This feature adds one new component file to the existing `ui/` directory and modifies three existing files. No new directories or structural changes needed. No contracts directory needed — this is an internal UI component with no external interfaces.

40
specs/032-inline-confirm-buttons/quickstart.md Normal file
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@@ -0,0 +1,40 @@
# Quickstart: Inline Confirmation Buttons
## What This Feature Does
Replaces single-click destructive actions and browser `window.confirm()` dialogs with inline two-step confirmation buttons. Click once to arm, click again to execute. The button visually transforms (checkmark icon, red background, scale pulse) to signal the armed state, and auto-reverts after 5 seconds.
## Files to Create
- `apps/web/src/components/ui/confirm-button.tsx` — Reusable ConfirmButton component
## Files to Modify
- `apps/web/src/components/combatant-row.tsx` — Replace remove Button with ConfirmButton
- `apps/web/src/components/turn-navigation.tsx` — Replace trash Button with ConfirmButton
- `apps/web/src/hooks/use-encounter.ts` — Remove `window.confirm()` from clearEncounter
- `apps/web/src/index.css` — Add scale pulse keyframe animation
## How to Test
```bash
# Run all tests
pnpm test
# Run the dev server and test manually
pnpm --filter web dev
# 1. Add a combatant
# 2. Click the X button — should enter red confirm state
# 3. Click again — combatant removed
# 4. Click X, wait 5 seconds — should revert
# 5. Click trash button — same confirm behavior for clearing encounter
# 6. Test keyboard: Tab to button, Enter, Enter (confirm), Escape (cancel)
```
## Key Design Decisions
- ConfirmButton wraps the existing `Button` component (no new base component)
- Confirm state is local `useState` — no shared state or context needed
- Click-outside detection follows the `HpAdjustPopover` pattern (mousedown listener)
- Animation uses CSS `@keyframes` + `@utility` like existing animations
- Uses `bg-destructive text-primary-foreground` for the confirm state

62
specs/032-inline-confirm-buttons/research.md Normal file
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@@ -0,0 +1,62 @@
# Research: Inline Confirmation Buttons
## R-001: Confirmation UX Pattern
**Decision**: Two-click inline confirmation with visual state transition (no modal, no popover).
**Rationale**: The button itself transforms in place — icon swaps to a checkmark, background turns red/danger, a scale pulse draws attention. This avoids the cognitive interruption of a modal dialog while still requiring deliberate confirmation. The pattern is well-established in tools like GitHub (delete branch buttons) and Notion (delete page).
**Alternatives considered**:
- **Browser `window.confirm()`** — Already in use for clear encounter. Blocks the thread, looks outdated, inconsistent across browsers. Rejected.
- **Custom modal dialog** — More disruptive than needed for single-button actions. Would require a new modal component. Rejected (over-engineered for icon buttons).
- **Undo toast after immediate deletion** — Simpler UX but requires implementing undo infrastructure in the domain layer. Out of scope per spec assumptions. Rejected.
- **Hold-to-delete (long press)** — Poor keyboard accessibility, no visual feedback during the hold, unfamiliar pattern for web apps. Rejected.
## R-002: State Management Approach
**Decision**: Local `useState` boolean inside the `ConfirmButton` component, with `useEffect` for the auto-revert timer and click-outside/escape listeners.
**Rationale**: The confirm state is purely UI-local — it doesn't affect domain state, doesn't need to be persisted, and doesn't need to be shared between components. A simple boolean (`isConfirming`) is sufficient. The existing codebase already uses this exact pattern in `HpAdjustPopover` (click-outside detection, Escape handling, useCallback with cleanup).
**Alternatives considered**:
- **Shared state / context** — No need; each button is independent (FR-010). Rejected.
- **Custom hook (`useConfirmButton`)** — Possible but premature. The logic is simple enough to live in the component. If more confirm buttons are added later, extraction to a hook is trivial. Rejected for now.
## R-003: Animation Approach
**Decision**: CSS `@keyframes` animation registered as a Tailwind `@utility`, matching the existing `animate-concentration-pulse` and `animate-slide-in-right` patterns.
**Rationale**: The project already defines custom animations via `@keyframes` + `@utility` in `index.css`. A scale pulse (brief scale-up then back to normal) is lightweight and purely decorative — no JavaScript animation library needed.
**Alternatives considered**:
- **JavaScript animation (Web Animations API)** — Overkill for a simple pulse. Harder to coordinate with Tailwind classes. Rejected.
- **Tailwind `transition-transform`** — Only handles transitions between states, not a pulse effect (scale up then back). Would need JS to toggle classes with timing. Rejected.
## R-004: Destructive Color Tokens
**Decision**: Use existing `--color-destructive` (#ef4444) for the confirm-state background and keep `--color-primary-foreground` (#ffffff) for the icon in confirm state.
**Rationale**: The theme already defines `--color-destructive` and `--color-hover-destructive`. The confirm state needs a filled background (not just text color change) to be visually unmistakable. Using `bg-destructive text-primary-foreground` provides high contrast and matches the semantic meaning.
**Alternatives considered**:
- **`bg-destructive/20` (semi-transparent)** — Too subtle for a confirmation state that must be immediately recognizable. Rejected.
- **New custom color token** — Unnecessary; existing tokens suffice. Rejected.
## R-005: Click-Outside Detection
**Decision**: `mousedown` event listener on `document` with `ref.current.contains()` check, cleaned up on unmount or state change.
**Rationale**: This is the exact pattern used by `HpAdjustPopover` in the existing codebase. It's proven, handles edge cases (clicking on other interactive elements), and cleans up properly.
**Alternatives considered**:
- **`blur` event on button** — Doesn't fire when clicking on non-focusable elements. Incomplete coverage. Rejected as sole mechanism (but focus loss is still handled via FR-005).
- **Third-party library (e.g., `use-click-outside`)** — Unnecessary dependency for a simple pattern already implemented in the codebase. Rejected.
## R-006: Integration Points
**Decision**: The `ConfirmButton` component wraps the existing `Button` component. Integration requires:
1. `combatant-row.tsx`: Replace the remove `<Button>` with `<ConfirmButton>`, move `onRemove(id)` to the `onConfirm` prop.
2. `turn-navigation.tsx`: Replace the trash `<Button>` with `<ConfirmButton>`, pass `onClearEncounter` to `onConfirm`.
3. `use-encounter.ts`: Remove `window.confirm()` from `clearEncounter` callback — confirmation is now handled by the UI component.
**Rationale**: Confirmation is a UI concern, not a business logic concern. Moving it from the hook (`window.confirm`) to the component (`ConfirmButton`) aligns with the layered architecture — the adapter layer handles user interaction, not the application layer.

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# Feature Specification: Inline Confirmation Buttons
**Feature Branch**: `032-inline-confirm-buttons`
**Created**: 2026-03-11
**Status**: Draft
**Input**: User description: "Replace confirmation modals with inline confirmation buttons for destructive actions"
## User Scenarios & Testing *(mandatory)*
### User Story 1 - Confirm-to-delete for removing a combatant (Priority: P1)
A user hovering over a combatant row sees the remove (X) button. They click it and the button transitions into a red "confirm" state with a checkmark icon and a subtle scale pulse animation. If they click again within 5 seconds, the combatant is removed. If they wait, click elsewhere, or press Escape, the button quietly reverts to its original state without taking any action.
**Why this priority**: The remove combatant button currently has no confirmation at all — it deletes immediately. This is the highest-risk destructive action because it can be triggered accidentally during fast-paced encounter management and there is no undo.
**Independent Test**: Can be fully tested by adding a single combatant, clicking the X button once (verifying confirm state), then clicking again (verifying removal). Delivers immediate safety value.
**Acceptance Scenarios**:
1. **Given** a combatant row is visible, **When** the user clicks the remove (X) button once, **Then** the button transitions to a confirm state showing a checkmark icon on a red/danger background with a scale pulse animation.
2. **Given** the remove button is in confirm state, **When** the user clicks it again, **Then** the combatant is removed from the encounter.
3. **Given** the remove button is in confirm state, **When** 5 seconds elapse without a second click, **Then** the button reverts to its original X icon and default styling.
4. **Given** the remove button is in confirm state, **When** the user clicks outside the button, **Then** the button reverts to its original state without removing the combatant.
5. **Given** the remove button is in confirm state, **When** the user presses Escape, **Then** the button reverts to its original state without removing the combatant.
---
### User Story 2 - Confirm-to-clear for resetting the encounter (Priority: P2)
A user clicks the trash button to clear the entire encounter. Instead of a browser confirm dialog appearing, the trash button itself transitions into a red confirm state with a checkmark icon and a scale pulse. A second click clears the encounter; otherwise the button reverts after 5 seconds or on dismiss.
**Why this priority**: The clear encounter action already has a browser `window.confirm()` dialog. Replacing it with the inline pattern improves UX consistency but is lower priority since protection already exists.
**Independent Test**: Can be tested by adding combatants, clicking the trash button once (verifying confirm state), then clicking again (verifying encounter is cleared). Delivers a more modern, consistent experience.
**Acceptance Scenarios**:
1. **Given** an encounter has combatants, **When** the user clicks the clear encounter (trash) button once, **Then** the button transitions to a confirm state with a checkmark icon on a red/danger background with a scale pulse animation.
2. **Given** the trash button is in confirm state, **When** the user clicks it again, **Then** the entire encounter is cleared.
3. **Given** the trash button is in confirm state, **When** 5 seconds pass, the user clicks outside, or the user presses Escape, **Then** the button reverts to its original trash icon and default styling without clearing the encounter.
4. **Given** the encounter has no combatants, **When** the user views the trash button, **Then** it remains disabled and cannot enter confirm state.
---
### User Story 3 - Keyboard-accessible confirmation flow (Priority: P2)
A keyboard-only user can trigger the confirm state with Enter or Space, confirm the destructive action with a second Enter or Space, and cancel with Escape — all without needing a mouse.
**Why this priority**: Keyboard accessibility is a core project requirement (established in the quality gates feature). It shares priority with Story 2 because it is integral to the component's correctness rather than an add-on.
**Independent Test**: Can be tested by tabbing to a destructive button, pressing Enter (verifying confirm state), then pressing Enter again (verifying action executes). Escape cancels.
**Acceptance Scenarios**:
1. **Given** a destructive button has keyboard focus, **When** the user presses Enter or Space, **Then** the button enters confirm state.
2. **Given** a destructive button is in confirm state with focus, **When** the user presses Enter or Space, **Then** the destructive action executes.
3. **Given** a destructive button is in confirm state with focus, **When** the user presses Escape, **Then** the button reverts to its original state.
4. **Given** a destructive button is in confirm state, **When** the button loses focus (e.g., Tab away), **Then** the button reverts to its original state.
---
### Edge Cases
- What happens if the user rapidly clicks the button three or more times? The first click enters confirm state, the second executes the action — additional clicks are no-ops since the target is already removed/cleared.
- What happens if the component unmounts while in confirm state (e.g., navigating away)? The timer must be cleaned up to prevent memory leaks or stale state updates.
- What happens if two ConfirmButtons are in confirm state simultaneously (e.g., hovering over one combatant's X then another's)? Each button manages its own state independently.
- What happens if the remove button's combatant row is re-rendered while in confirm state (e.g., due to initiative changes)? The confirm state persists through re-renders as long as the combatant identity is stable.
## Requirements *(mandatory)*
### Functional Requirements
- **FR-001**: System MUST provide a reusable `ConfirmButton` component that wraps any icon button to add a two-step confirmation flow.
- **FR-002**: On first activation (click, Enter, or Space), the button MUST transition to a confirm state displaying a checkmark icon on a red/danger background.
- **FR-003**: The confirm state MUST enter with a subtle scale pulse animation to draw attention to the state change.
- **FR-004**: The button MUST automatically revert to its original state after 5 seconds if not confirmed.
- **FR-005**: Clicking outside the button, pressing Escape, or moving focus away MUST cancel the confirm state and revert the button.
- **FR-006**: A second activation (click, Enter, or Space) while in confirm state MUST execute the destructive action.
- **FR-007**: The clear encounter (trash) button MUST use `ConfirmButton` instead of `window.confirm()`.
- **FR-008**: The remove combatant (X) button MUST use `ConfirmButton` instead of deleting immediately.
- **FR-009**: The `ConfirmButton` MUST remain fully keyboard-accessible: focusable, activatable via Enter/Space, dismissable via Escape.
- **FR-010**: Each `ConfirmButton` instance MUST manage its confirm state independently of other instances.
## Success Criteria *(mandatory)*
### Measurable Outcomes
- **SC-001**: All destructive actions require exactly two deliberate user interactions to execute, eliminating single-click accidental deletions.
- **SC-002**: The confirmation flow completes (enter confirm state, execute action) in under 2 seconds for an experienced user, keeping the interaction faster than a modal dialog.
- **SC-003**: The confirm state is visually distinct enough that users can identify it without reading text — recognizable by color and icon change alone.
- **SC-004**: All confirmation flows are fully operable via keyboard alone, with no mouse dependency.
- **SC-005**: The auto-revert timer reliably resets the button after 5 seconds, preventing stale confirm states from persisting.
## Assumptions
- The checkmark icon will use the project's existing Lucide icon library (`Check` component).
- The red/danger background will use the project's existing destructive color tokens.
- The scale pulse animation will be a CSS animation, keeping it lightweight.
- The 5-second timeout is a fixed value. MVP baseline does not include configurability.
- MVP baseline does not include undo functionality — that would be a separate feature.

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# Tasks: Inline Confirmation Buttons
**Input**: Design documents from `/specs/032-inline-confirm-buttons/`
**Prerequisites**: plan.md, spec.md, research.md, data-model.md, quickstart.md
**Tests**: Not explicitly requested in spec. Tests included for the ConfirmButton component since its state machine logic is well-suited to unit testing and the spec defines precise acceptance scenarios.
**Organization**: Tasks are grouped by user story to enable independent implementation and testing of each story.
## Format: `[ID] [P?] [Story] Description`
- **[P]**: Can run in parallel (different files, no dependencies)
- **[Story]**: Which user story this task belongs to (e.g., US1, US2, US3)
- Include exact file paths in descriptions
## Phase 1: Setup (Shared Infrastructure)
**Purpose**: CSS animation and reusable component that all user stories depend on
- [x] T001 Add `animate-confirm-pulse` scale pulse keyframe animation in `apps/web/src/index.css` — define a `@keyframes confirm-pulse` (scale 1 → 1.15 → 1) and register it as `@utility animate-confirm-pulse` following the existing `animate-concentration-pulse` pattern
- [x] T002 Create `ConfirmButton` component in `apps/web/src/components/ui/confirm-button.tsx` — wraps the existing `Button` component with a two-step confirmation flow: accepts `onConfirm`, `icon`, `label`, `className?`, `disabled?` props; manages `isConfirming` state via `useState`; on first click sets `isConfirming=true` and starts a 5-second `setTimeout` to auto-revert; on second click calls `onConfirm()`; in confirm state renders `Check` icon with `bg-destructive text-primary-foreground rounded-md animate-confirm-pulse`; adds `mousedown` click-outside listener and `keydown` Escape listener (both with cleanup); reverts on focus loss via `onBlur`; calls `e.stopPropagation()` on all clicks; updates `aria-label` to reflect confirm state (e.g., "Confirm remove combatant" when armed, using `label` prop as base); cleans up timer on unmount
---
## Phase 2: Foundational (Blocking Prerequisites)
**Purpose**: Unit tests for the ConfirmButton state machine
- [x] T003 Write unit tests for `ConfirmButton` in `apps/web/src/__tests__/confirm-button.test.tsx` — test: (1) renders default icon in idle state, (2) first click transitions to confirm state with Check icon and destructive background, (3) second click in confirm state calls `onConfirm`, (4) auto-reverts after 5 seconds (use `vi.useFakeTimers`), (5) Escape key reverts to idle, (6) click outside reverts to idle, (7) disabled prop prevents entering confirm state, (8) unmount cleans up timer, (9) independent instances don't interfere with each other
**Checkpoint**: ConfirmButton component is fully functional and tested. User story integration can begin.
---
## Phase 3: User Story 1 — Confirm-to-delete for removing a combatant (Priority: P1) MVP
**Goal**: The remove combatant (X) button uses ConfirmButton instead of deleting immediately.
**Independent Test**: Add a combatant, click X once (verify confirm state with checkmark), click again (verify removal). Wait 5s after first click (verify revert). Press Escape (verify cancel).
### Implementation for User Story 1
- [x] T004 [US1] Replace the remove `<Button>` with `<ConfirmButton>` in `apps/web/src/components/combatant-row.tsx` — swap the existing `<Button variant="ghost" size="icon" ... onClick={onRemove(id)}>` (around line 546) with `<ConfirmButton icon={<X size={16} />} label="Remove combatant" onConfirm={() => onRemove(id)} className="h-7 w-7 text-muted-foreground opacity-0 pointer-events-none group-hover:opacity-100 group-hover:pointer-events-auto focus:opacity-100 focus:pointer-events-auto transition-opacity" />`; the ConfirmButton handles `stopPropagation` internally (per T002) so the parent row click is not triggered
**Checkpoint**: Remove combatant now requires two clicks. Single-click accidental deletion is eliminated.
---
## Phase 4: User Story 2 — Confirm-to-clear for resetting the encounter (Priority: P2)
**Goal**: The clear encounter (trash) button uses ConfirmButton instead of `window.confirm()`.
**Independent Test**: Add combatants, click trash once (verify confirm state), click again (verify encounter cleared). Verify disabled state when no combatants.
### Implementation for User Story 2
- [x] T005 [US2] Replace the trash `<Button>` with `<ConfirmButton>` in `apps/web/src/components/turn-navigation.tsx` — swap the existing `<Button variant="ghost" size="icon" ... onClick={onClearEncounter}>` (around line 77) with `<ConfirmButton icon={<Trash2 className="h-5 w-5" />} label="Clear encounter" onConfirm={onClearEncounter} disabled={!hasCombatants} className="h-8 w-8 text-muted-foreground" />`
- [x] T006 [US2] Remove `window.confirm()` guard from `clearEncounter` callback in `apps/web/src/hooks/use-encounter.ts` — delete the `if (!window.confirm(...)) return;` block (around line 229) since confirmation is now handled by the ConfirmButton UI component
**Checkpoint**: Clear encounter now uses inline confirmation instead of browser dialog. Both destructive actions have consistent UX.
---
## Phase 5: User Story 3 — Keyboard-accessible confirmation flow (Priority: P2)
**Goal**: All confirmation flows are fully operable via keyboard (Enter/Space to activate, Escape to cancel, Tab-away to revert).
**Independent Test**: Tab to a destructive button, press Enter (confirm state), Enter again (action executes). Tab to button, press Enter (confirm state), press Escape (reverts). Tab to button, press Enter (confirm state), Tab away (reverts).
### Implementation for User Story 3
- [x] T007 [US3] Verify keyboard handling in `apps/web/src/components/ui/confirm-button.tsx` — ensure the component uses a native `<button>` element (via the `Button` wrapper) so Enter/Space activation works by default; verify that the `onKeyDown` handler for Escape is attached and works in confirm state; verify `onBlur` revert fires when tabbing away; verify dynamic `aria-label` (built into T002) works correctly; run manual keyboard testing
- [x] T008 [US3] Add keyboard-specific unit tests in `apps/web/src/__tests__/confirm-button.test.tsx` — append tests: (1) Enter key triggers confirm state, (2) Space key triggers confirm state, (3) Enter in confirm state calls `onConfirm`, (4) Escape in confirm state reverts, (5) blur event reverts confirm state
**Checkpoint**: All confirmation flows work identically via mouse and keyboard.
---
## Phase 6: Polish & Cross-Cutting Concerns
**Purpose**: Quality gates and final validation
- [x] T009 Run `pnpm check` to verify all quality gates pass (audit, knip, biome, typecheck, test/coverage, jscpd)
- [ ] T010 Run quickstart.md manual validation — start dev server with `pnpm --filter web dev`, test all scenarios from quickstart.md: add combatant, click X (confirm state), click again (removal), click X then wait 5s (revert), click trash (confirm), click again (clear), keyboard flows (Tab/Enter/Escape)
---
## Dependencies & Execution Order
### Phase Dependencies
- **Setup (Phase 1)**: No dependencies — can start immediately
- **Foundational (Phase 2)**: Depends on T001, T002 from Setup
- **User Story 1 (Phase 3)**: Depends on Phase 2 completion
- **User Story 2 (Phase 4)**: Depends on Phase 2 completion — independent of US1
- **User Story 3 (Phase 5)**: Depends on Phase 2 completion — verifies keyboard behavior built into T002
- **Polish (Phase 6)**: Depends on all user stories being complete
### User Story Dependencies
- **User Story 1 (P1)**: Can start after Phase 2 — no dependencies on other stories
- **User Story 2 (P2)**: Can start after Phase 2 — independent of US1 (different files)
- **User Story 3 (P2)**: Can start after Phase 2 — may refine T002 implementation, so best done after US1/US2 to avoid rework
### Parallel Opportunities
- T001 and T002 are sequential (T002 uses the animation from T001)
- T004 (US1) and T005+T006 (US2) can run in parallel after Phase 2 (different files)
- T007 and T008 (US3) are sequential within their story
---
## Parallel Example: User Stories 1 & 2
```bash
# After Phase 2 completes, launch US1 and US2 in parallel:
Task: T004 [US1] "Replace remove Button with ConfirmButton in combatant-row.tsx"
Task: T005 [US2] "Replace trash Button with ConfirmButton in turn-navigation.tsx"
Task: T006 [US2] "Remove window.confirm() from use-encounter.ts"
```
---
## Implementation Strategy
### MVP First (User Story 1 Only)
1. Complete Phase 1: Setup (T001, T002) — create animation and component
2. Complete Phase 2: Foundational (T003) — test the component
3. Complete Phase 3: User Story 1 (T004) — integrate with combatant remove
4. **STOP and VALIDATE**: Test remove combatant confirmation independently
5. Commit and verify `pnpm check` passes
### Incremental Delivery
1. Setup + Foundational → ConfirmButton ready and tested
2. Add User Story 1 → Remove combatant has confirmation → MVP
3. Add User Story 2 → Clear encounter uses inline confirm → Consistent UX
4. Add User Story 3 → Keyboard accessibility verified and tested → Complete
5. Polish → Quality gates, manual validation → Ship
---
## Notes
- [P] tasks = different files, no dependencies
- [Story] label maps task to specific user story for traceability
- Each user story is independently completable and testable
- Commit after each task or logical group
- Stop at any checkpoint to validate story independently
- The ConfirmButton component (T002) is the critical path — all stories depend on it

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vitest.config.ts
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@@ -2,7 +2,7 @@ import { defineConfig } from "vitest/config";
export default defineConfig({ export default defineConfig({
test: { test: {
include: ["packages/*/src/**/*.test.ts", "apps/*/src/**/*.test.ts"], include: ["packages/*/src/**/*.test.ts", "apps/*/src/**/*.test.{ts,tsx}"],
passWithNoTests: true, passWithNoTests: true,
coverage: { coverage: {
provider: "v8", provider: "v8",