ext: popup, options, and the panel bridge (build order step 6)

Popup and Options are separate documents from the background page and
can't reach its live VeloxTransport directly, so background/bridge.ts
relays it over one browser.runtime.connect port per document
(call/subscribe/getStatus/reconnect/pair/unpair/setOverride in;
result/event/status/pairError out). shared/panel-client.ts is the
client side both surfaces use.

Popup (src/popup/): status dot + text, active-downloads list driven by
event.task.progress/added/state/removed (repaints ride the event's own
<=4 Hz cap rather than adding a second timer), pause/resume buttons,
"Start it" wired to a reconnect request. State lives in a DOM-free
store.ts for unit testing; rendering uses createElement, not innerHTML
(web-ext lint flags the latter).

Options (src/options/): transport override select, pairing (code entry
+ pair/unpair, backed by two new WebSocketTransport methods,
pairWithCode/unpair), and the daemon's capture policy mirrored via
capture.getRules. The capture-policy form is editable only when the
active transport is native messaging (uds) -- settings.set and
rules.upsert are privileged, uds-only methods per shared/protocol
METHODS, so WebSocket can't write them no matter what the page shows;
CLAUDE.md section 2 rules out working around that locally. The bridge's
status payload adds a kind field (which transport is live) for this to
key off. Default category is the one piece of state that's genuinely
the extension's own, not the daemon's, and lives in
browser.storage.local via options/prefs.ts. Pure decisions (statusLine,
pairingAvailable, captureRulesEditable) are split into view.ts for unit
testing without a DOM.

manifest.json registers the popup action and options_ui page (and, in
the same edit, the content_scripts entry the next commit's media
detection needs -- split by file, not by manifest line). build.mjs
gains popup/options as further esbuild entry points, plus copying their
static HTML/CSS into dist/.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Ed8KEmAW48v4YHdxLtqsMB

extension/tests/popup/store.test.ts

@@ -0,0 +1,114 @@
+import { describe, expect, it } from 'vitest';
+
+import { formatBytes, formatEta, formatSpeed, PopupStore, progressPercent } from '../../src/popup/store.js';
+import type { TaskSummary } from '../../src/shared/protocol/index.js';
+
+function summary(over: Partial<TaskSummary> = {}): TaskSummary {
+  return {
+    taskId: 't1',
+    filename: 'file.zip',
+    saveDir: '/home/u/Downloads',
+    url: 'https://example.com/file.zip',
+    downloadedBytes: 0,
+    state: 'downloading',
+    speedBps: 0,
+    resumable: true,
+    segments: 1,
+    createdAt: '2026-01-01T00:00:00Z',
+    ...over,
+  };
+}
+
+describe('PopupStore', () => {
+  it('starts empty', () => {
+    const s = new PopupStore();
+    expect(s.rows()).toEqual([]);
+    expect(s.size).toBe(0);
+  });
+
+  it('seeds from download.list', () => {
+    const s = new PopupStore();
+    s.setInitial([summary({ taskId: 'a' }), summary({ taskId: 'b', filename: 'b.zip' })]);
+    expect(s.size).toBe(2);
+  });
+
+  it('adds a row on event.task.added', () => {
+    const s = new PopupStore();
+    s.onAdded({ taskId: 't1', summary: summary() });
+    expect(s.rows()).toHaveLength(1);
+    expect(s.rows()[0]!.filename).toBe('file.zip');
+  });
+
+  it('applies event.task.progress as a patch, not a rebuild', () => {
+    const s = new PopupStore();
+    s.setInitial([summary({ taskId: 't1', sizeBytes: 1000 })]);
+    s.onProgress({ at: '2026-01-01T00:00:00Z', tasks: [{ taskId: 't1', downloadedBytes: 500, speedBps: 2048, etaSeconds: 4 }] });
+    const row = s.rows()[0]!;
+    expect(row.downloadedBytes).toBe(500);
+    expect(row.speedBps).toBe(2048);
+    expect(row.etaSeconds).toBe(4);
+    expect(row.filename).toBe('file.zip'); // untouched by the patch
+  });
+
+  it('ignores a progress tick for an unknown task rather than inserting a partial row', () => {
+    const s = new PopupStore();
+    s.onProgress({ at: '2026-01-01T00:00:00Z', tasks: [{ taskId: 'ghost', downloadedBytes: 1, speedBps: 1 }] });
+    expect(s.size).toBe(0);
+  });
+
+  it('replaces the row on event.task.state when a summary is attached', () => {
+    const s = new PopupStore();
+    s.setInitial([summary({ taskId: 't1', state: 'downloading' })]);
+    s.onState({ taskId: 't1', state: 'paused', summary: summary({ taskId: 't1', state: 'paused' }) });
+    expect(s.rows()[0]!.state).toBe('paused');
+  });
+
+  it('updates just the state when event.task.state has no summary', () => {
+    const s = new PopupStore();
+    s.setInitial([summary({ taskId: 't1', state: 'downloading' })]);
+    s.onState({ taskId: 't1', state: 'failed' });
+    expect(s.rows()[0]!.state).toBe('failed');
+  });
+
+  it('drops the row on event.task.removed', () => {
+    const s = new PopupStore();
+    s.setInitial([summary({ taskId: 't1' })]);
+    s.onRemoved({ taskId: 't1', deletedFile: false });
+    expect(s.size).toBe(0);
+  });
+
+  it('sorts active tasks before paused/finished ones, then by filename', () => {
+    const s = new PopupStore();
+    s.setInitial([
+      summary({ taskId: 'z', filename: 'z-paused.zip', state: 'paused' }),
+      summary({ taskId: 'b', filename: 'b-active.zip', state: 'downloading' }),
+      summary({ taskId: 'a', filename: 'a-active.zip', state: 'downloading' }),
+    ]);
+    expect(s.rows().map((r) => r.taskId)).toEqual(['a', 'b', 'z']);
+  });
+});
+
+describe('format helpers', () => {
+  it('formats bytes', () => {
+    expect(formatBytes(500)).toBe('500 B');
+    expect(formatBytes(2048)).toBe('2.0 KB');
+    expect(formatBytes(5 * 1024 * 1024)).toBe('5.0 MB');
+  });
+
+  it('formats speed, blank when idle', () => {
+    expect(formatSpeed(0)).toBe('');
+    expect(formatSpeed(1024)).toBe('1.0 KB/s');
+  });
+
+  it('formats eta, blank when unknown', () => {
+    expect(formatEta(null)).toBe('');
+    expect(formatEta(-1)).toBe('');
+    expect(formatEta(45)).toBe('45s');
+    expect(formatEta(125)).toBe('2m 5s');
+  });
+
+  it('computes a progress percent, null when size is unknown', () => {
+    expect(progressPercent({ taskId: 't', filename: 'f', state: 'downloading', downloadedBytes: 50, sizeBytes: 100, speedBps: 0, etaSeconds: null })).toBe(50);
+    expect(progressPercent({ taskId: 't', filename: 'f', state: 'downloading', downloadedBytes: 50, sizeBytes: null, speedBps: 0, etaSeconds: null })).toBeNull();
+  });
+});