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2026-05-27 23:29:53 +01:00

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# OpenSpec Change: enterprise-browser-clipboard
- **Change ID**: enterprise-browser-clipboard
- **Package**: `@suaveplan/clipboard`
- **Category**: browser
- **Target path**: `browser/platform/clipboard`
- **Status**: IN PROGRESS
- **Date**: 2026-04-24
- **Reference spec**: `/mnt/s/web/suaveplan/enterprise/clipboard.md`
---
## Summary
Deliver `@suaveplan/clipboard` on the genesis branch at enterprise quality. The package provides `ClipboardManager` with injectable `ClipboardNavigator` seam, plain-text and rich copy/read, permission probing, and `execCommand` fallback. Genesis adds image and arbitrary-blob clipboard I/O, typed errors via `@suaveplan/error`, secure-context guard, paste-event fallback, permission-change subscription, async queue for concurrent operations, OTel counters/histograms, and Playwright E2E across Chromium/WebKit/Firefox.
---
## Current-state audit (genesis)
Fresh build — does not exist on genesis yet.
---
## Available workspace deps on genesis
| Package | Role |
|---|---|
| `@suaveplan/error` (`workspace:^`) | `CLIPBOARD_API_UNAVAILABLE`, `CLIPBOARD_PERMISSION_DENIED`, etc. |
| `@suaveplan/logger` (`workspace:^`) | Structured logging |
| `@suaveplan/schema-registry` (`workspace:^`) | `ClipboardOptions` schema |
| `zod` (`catalog:forms`) | `ClipboardOptions` Zod schema |
| `@opentelemetry/api` (`catalog:observability`) | Copy/read/fallback metrics |
| `tslib` (`catalog:build`) | Runtime helpers |
Dev: `vitest`, `@vitest/coverage-istanbul`, `happy-dom`, `@playwright/test`, `@suaveplan/testing`.
---
## Preserved public API surface
```ts
class ClipboardManager {
constructor(navigator?: ClipboardNavigator)
copyText(text: string, options?: ClipboardOptions): Promise<ClipboardResult>
readText(options?: ClipboardOptions): Promise<ClipboardResult>
copyRichContent(data: ClipboardData, options?: ClipboardOptions): Promise<ClipboardResult>
readRichContent(options?: ClipboardOptions): Promise<ClipboardResult>
checkPermission(name: 'clipboard-read' | 'clipboard-write'): Promise<PermissionResult>
onPermissionChange(name: 'clipboard-read' | 'clipboard-write', cb: (s: PermissionState) => void): () => void
}
// Types
interface ClipboardData {
text?: string
html?: string
image?: Blob // new
blobs?: Record<string, Blob> // new — arbitrary MIME
}
interface ClipboardResult { success: boolean; method: 'api' | 'fallback'; payload?: ClipboardData; error?: SuaveplanError }
interface PermissionResult { state: PermissionState; supported: boolean }
```
Subpath exports: `"."`, `"./types"`.
---
## New additions for genesis
### 1. Image and arbitrary-blob clipboard I/O
`copyRichContent` and `readRichContent` accept/return `image?: Blob` and `blobs?: Record<string, Blob>` via `ClipboardItem` for modern Clipboard API.
### 2. Typed errors
`CLIPBOARD_API_UNAVAILABLE`, `CLIPBOARD_PERMISSION_DENIED`, `CLIPBOARD_FALLBACK_FAILED`, `CLIPBOARD_INSECURE_CONTEXT` — all extend `@suaveplan/error`.
### 3. Secure-context guard
`requireSecureContext()` probes `window.isSecureContext`; throws `CLIPBOARD_INSECURE_CONTEXT` outside HTTPS/localhost before attempting clipboard access.
### 4. Paste-event fallback
`readText` in non-API contexts orchestrates focus + `paste` event capture as best-effort fallback.
### 5. Permission-change subscription
`onPermissionChange(name, cb)` using `PermissionStatus.onchange`; returns unsubscribe function.
### 6. Async operation queue
Concurrent `copy`/`read` calls are serialized via an internal queue to prevent "Document is not focused" races.
### 7. Focus-aware retry
When `Document is not focused` error fires, waits for the next focus event and retries once.
### 8. Error codes
`CLIPBOARD_API_UNAVAILABLE`, `CLIPBOARD_PERMISSION_DENIED`, `CLIPBOARD_FALLBACK_FAILED`, `CLIPBOARD_INSECURE_CONTEXT`.
### 9. OTel metrics
Counter `clipboard.copy_total{method}`, counter `clipboard.read_total{method}`, counter `clipboard.fallback_used_total`, counter `clipboard.error_total{code}`, histogram `clipboard.op_latency_ms`.
---
## File layout
```text
browser/platform/clipboard/
package.json
tsconfig.json
vitest.config.ts
src/
index.ts
error-codes.ts
clipboard/
clipboard/
clipboard.ts (ClipboardManager, ≤250 lines)
clipboard.test.ts
clipboard.md
clipboard.types.ts
index.ts
queue/
queue.ts (async operation serializer)
queue.test.ts
queue.md
index.ts
fallback/
fallback.ts (execCommand + paste-event fallback)
fallback.test.ts
fallback.md
index.ts
telemetry/
metrics/
metrics.ts
metrics.md
index.ts
types/
types/
types.ts
types.md
index.ts
schema/
clipboard-schema/
clipboard-schema.ts
clipboard-schema.md
index.ts
constants/
index.ts
tests/
integration.test.ts
e2e/
clipboard.spec.ts (Chromium/WebKit/Firefox: text, image, permissions)
```
---
## Impact
**Downstream**: any Suaveplan browser app using clipboard operations.
**Breaking changes**: None — all additions are additive. Error types changed from bare strings to `SuaveplanError` (structured), but result shape is unchanged.
**Prerequisites**: `@suaveplan/error`, `@suaveplan/logger` on Verdaccio.