feat: add message-list category tabs

This commit is contained in:
Linus Rath
2026-07-22 17:22:20 +02:00
parent 66bc10fa0f
commit 5105e000f5
15 changed files with 1158 additions and 11 deletions
+4
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@@ -5,6 +5,7 @@ import { usePathname } from "next/navigation";
import { useTranslations } from "next-intl";
import { Sidebar } from "@/components/layout/sidebar";
import { EmailList } from "@/components/email/email-list";
import { MessageListTabs } from "@/components/email/message-list-tabs";
import { EmailViewer } from "@/components/email/email-viewer";
import { EmailComposer } from "@/components/email/email-composer";
import type { ComposerDraftData } from "@/components/email/email-composer";
@@ -3126,6 +3127,9 @@ export default function Home() {
)}
<div className="flex-1 min-h-0 flex flex-col">
{/* Plugin-registered category tabs (Gmail-style). Renders nothing
unless an enabled plugin registered tabs via api.tabs.set. */}
{!isScheduledView && <MessageListTabs />}
<WelcomeBanner />
<ErrorBoundary fallback={EmailListErrorFallback}>
+121
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@@ -0,0 +1,121 @@
'use client';
// Native tab strip for plugin-registered message-list category tabs
// (Gmail-style Primary / Promotions / Social / Updates). Renders above the
// email list; the active tab's resolved JMAP filter is ANDed into the
// mailbox query by email-store.fetchEmails. Plugins only contribute tab
// DEFINITIONS (stores/message-list-tabs-store.ts) - no plugin iframe here.
import { useEffect, useRef } from 'react';
import { icons as lucideIcons, type LucideIcon } from 'lucide-react';
import { useMessageListTabsStore } from '@/stores/message-list-tabs-store';
import { useEmailStore } from '@/stores/email-store';
import { useAuthStore } from '@/stores/auth-store';
import { cn } from '@/lib/utils';
export function MessageListTabs() {
const tabs = useMessageListTabsStore((s) => s.tabs);
const mailboxRoles = useMessageListTabsStore((s) => s.mailboxRoles);
const activeTabId = useMessageListTabsStore((s) => s.activeTabId);
const tabCounts = useMessageListTabsStore((s) => s.tabCounts);
const selectedMailbox = useEmailStore((s) => s.selectedMailbox);
const mailboxes = useEmailStore((s) => s.mailboxes);
const selectedKeyword = useEmailStore((s) => s.selectedKeyword);
const searchQuery = useEmailStore((s) => s.searchQuery);
const isUnifiedView = useEmailStore((s) => s.isUnifiedView);
const client = useAuthStore((s) => s.client);
const mailbox = mailboxes.find((mb) => mb.id === selectedMailbox);
const role = mailbox?.role?.toLowerCase() ?? null;
// Tabs only make sense on a plain mailbox view: tag views, searches and
// unified fan-outs bypass the category filter in fetchEmails, so the strip
// must disappear rather than lie about what's being shown.
const visible =
tabs.length > 0 &&
!!role &&
mailboxRoles.includes(role) &&
!selectedKeyword &&
!searchQuery &&
!isUnifiedView;
useEffect(() => {
if (!visible || !client || !mailbox) return;
const jmapMailboxId = mailbox.originalId || mailbox.id;
const accountId = mailbox.isShared ? mailbox.accountId : undefined;
void useMessageListTabsStore.getState().refreshCounts(client, jmapMailboxId, accountId);
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [visible, client, selectedMailbox, tabs]);
// A plugin registering (or clearing) tabs after the list was fetched leaves
// the visible list out of sync with the strip's active-tab filter - refetch
// exactly when the merged tab set changes, never on ordinary view switches
// (those already refetch through their own flows).
const prevTabsRef = useRef(tabs);
useEffect(() => {
if (prevTabsRef.current === tabs) return;
prevTabsRef.current = tabs;
if (client) void useEmailStore.getState().fetchEmails(client);
}, [tabs, client]);
if (!visible) return null;
const handleSelect = (tabId: string) => {
if (tabId === activeTabId) return;
useMessageListTabsStore.getState().setActiveTab(tabId, selectedMailbox);
if (client) void useEmailStore.getState().fetchEmails(client);
};
return (
<div
className="flex items-stretch gap-1 px-2 border-b border-border overflow-x-auto shrink-0"
style={{ scrollbarWidth: 'none' }}
role="tablist"
aria-label="Inbox categories"
>
{tabs.map((tab) => {
const Icon = tab.icon
? (lucideIcons[tab.icon as keyof typeof lucideIcons] as LucideIcon | undefined)
: undefined;
const unread = tabCounts[tab.id] ?? 0;
const isActive = tab.id === activeTabId;
return (
<button
key={tab.id}
role="tab"
aria-selected={isActive}
onClick={() => handleSelect(tab.id)}
className={cn(
'relative flex items-center gap-1.5 px-3.5 py-2.5 text-sm whitespace-nowrap select-none',
'border-b-2 -mb-px rounded-t-md transition-colors duration-150',
'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-inset',
isActive
? 'border-primary text-foreground font-medium'
: 'border-transparent text-muted-foreground hover:text-foreground hover:bg-muted/40',
)}
style={isActive && tab.color ? { borderBottomColor: tab.color } : undefined}
>
{Icon && (
<Icon
className={cn('h-4 w-4 flex-shrink-0', !isActive && 'opacity-70')}
style={isActive && tab.color ? { color: tab.color } : undefined}
/>
)}
<span>{tab.label}</span>
{tab.showUnreadBadge !== false && unread > 0 && (
<span
className={cn(
'text-xs font-semibold tabular-nums',
isActive ? 'text-foreground' : 'text-muted-foreground',
)}
title={`${unread} unread`}
>
{unread > 99 ? '99+' : unread}
</span>
)}
</button>
);
})}
</div>
);
}
@@ -0,0 +1,144 @@
// Contract tests for the plugin-facing message-list category tabs
// (api.tabs.set → stores/message-list-tabs-store.ts).
import { describe, it, expect, beforeEach } from 'vitest';
import {
useMessageListTabsStore,
validateTabsConfig,
resolveTabFilter,
} from '@/stores/message-list-tabs-store';
import type { MessageListTab } from '@/lib/plugin-types';
const GMAIL_STYLE = {
tabs: [
{ id: 'primary', label: 'Primary', keyword: null },
{ id: 'promotions', label: 'Promotions', keyword: '$category-promotions' },
{ id: 'social', label: 'Social', query: { operator: 'OR', conditions: [{ from: 'reddit.com' }, { from: 'linkedin.com' }] } },
{ id: 'updates', label: 'Updates', keyword: '$category-updates' },
],
};
function resetStore() {
useMessageListTabsStore.setState({
registrations: {},
tabs: [],
mailboxRoles: [],
activeTabId: null,
tabCounts: {},
isCountsLoading: false,
});
}
beforeEach(resetStore);
describe('validateTabsConfig', () => {
it('normalizes a valid config and defaults mailboxRoles to inbox', () => {
const v = validateTabsConfig(GMAIL_STYLE);
expect(v.tabs).toHaveLength(4);
expect(v.mailboxRoles).toEqual(['inbox']);
expect(v.tabs[1].keyword).toBe('$category-promotions');
expect(v.tabs[2].query).toEqual(GMAIL_STYLE.tabs[2].query);
});
it('lowercases keywords (IMAP keywords are case-insensitive)', () => {
const v = validateTabsConfig({
tabs: [
{ id: 'a', label: 'A', keyword: '$Category-Promotions' },
{ id: 'b', label: 'B', keyword: null },
],
});
expect(v.tabs[0].keyword).toBe('$category-promotions');
});
it('rejects reserved and tag keywords', () => {
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A', keyword: '$seen' }, { id: 'b', label: 'B' }],
})).toThrow(/reserved/);
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A', keyword: '$label.x' }, { id: 'b', label: 'B' }],
})).toThrow(/reserved/);
});
it('rejects duplicate ids, multiple default tabs, and single-tab configs', () => {
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A' }, { id: 'a', label: 'B', keyword: '$x' }],
})).toThrow(/duplicate/);
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A' }, { id: 'b', label: 'B' }],
})).toThrow(/default/);
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A', keyword: '$x' }],
})).toThrow(/at least 2/);
});
it('rejects non-object and oversized queries', () => {
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A', query: 'from:x' as unknown as Record<string, unknown> }, { id: 'b', label: 'B' }],
})).toThrow(/filter object/);
const huge = { from: 'x'.repeat(20000) };
expect(() => validateTabsConfig({
tabs: [{ id: 'a', label: 'A', query: huge }, { id: 'b', label: 'B' }],
})).toThrow(/exceeds/);
});
});
describe('resolveTabFilter', () => {
const tabs = validateTabsConfig(GMAIL_STYLE).tabs as MessageListTab[];
it('uses hasKeyword for keyword tabs and the raw query for search tabs', () => {
expect(resolveTabFilter(tabs[1], tabs)).toEqual({ hasKeyword: '$category-promotions' });
expect(resolveTabFilter(tabs[2], tabs)).toEqual(GMAIL_STYLE.tabs[2].query);
});
it('resolves the default tab to NOT(all other positive fragments)', () => {
const filter = resolveTabFilter(tabs[0], tabs) as { operator: string; conditions: unknown[] };
expect(filter.operator).toBe('NOT');
expect(filter.conditions).toHaveLength(3);
expect(filter.conditions).toContainEqual({ hasKeyword: '$category-promotions' });
expect(filter.conditions).toContainEqual(GMAIL_STYLE.tabs[2].query);
});
});
describe('store registration', () => {
it('registers tabs, activates the default tab, and scopes to the inbox role', () => {
const store = useMessageListTabsStore.getState();
store.registerTabs('category-tabs', GMAIL_STYLE);
const s = useMessageListTabsStore.getState();
expect(s.tabs.map(t => t.id)).toEqual(['primary', 'promotions', 'social', 'updates']);
expect(s.activeTabId).toBe('primary');
expect(s.isEnabledForRole('inbox')).toBe(true);
expect(s.isEnabledForRole('trash')).toBe(false);
// Default tab active → NOT filter.
const filter = s.getCategoryFilter('inbox') as { operator: string };
expect(filter.operator).toBe('NOT');
expect(s.getCategoryFilter('trash')).toBeNull();
});
it('keeps only the first default tab when two plugins both register one', () => {
const store = useMessageListTabsStore.getState();
store.registerTabs('p1', { tabs: [{ id: 'main', label: 'Main', order: 1 }, { id: 'x', label: 'X', keyword: '$x' }] });
store.registerTabs('p2', { tabs: [{ id: 'other', label: 'Other', order: 2 }, { id: 'y', label: 'Y', keyword: '$y' }] });
const defaults = useMessageListTabsStore.getState().tabs.filter(t => !t.query && !t.keyword);
expect(defaults.map(t => t.id)).toEqual(['main']);
});
it('clears a plugin registration and resets counts when the strip empties', () => {
const store = useMessageListTabsStore.getState();
store.registerTabs('category-tabs', GMAIL_STYLE);
useMessageListTabsStore.setState({ tabCounts: { promotions: 5 } });
store.clearTabs('category-tabs');
const s = useMessageListTabsStore.getState();
expect(s.tabs).toHaveLength(0);
expect(s.activeTabId).toBeNull();
expect(s.tabCounts).toEqual({});
expect(s.getCategoryFilter('inbox')).toBeNull();
});
it('switches the active tab and exposes its filter', () => {
const store = useMessageListTabsStore.getState();
store.registerTabs('category-tabs', GMAIL_STYLE);
store.setActiveTab('promotions', 'inbox-id');
expect(useMessageListTabsStore.getState().getCategoryFilter('inbox')).toEqual({ hasKeyword: '$category-promotions' });
});
});
+61 -1
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@@ -151,11 +151,43 @@ export class DemoJMAPClient implements IJMAPClient {
// ── Emails ────────────────────────────────────────────────────
async getEmails(mailboxId?: string, _accountId?: string, limit: number = 50, position: number = 0, _hasKeyword?: string, pinnedFirst?: boolean): Promise<{ emails: Email[]; hasMore: boolean; total: number }> {
/**
* Minimal JMAP filter evaluator for demo mode: supports the conditions the
* message-list category tabs use (hasKeyword / notKeyword / from and
* AND / OR / NOT operators). Unknown conditions match nothing.
*/
private matchesFilter(e: Email, filter: Record<string, unknown>): boolean {
if (typeof filter.operator === 'string') {
const conditions = (Array.isArray(filter.conditions) ? filter.conditions : []) as Record<string, unknown>[];
switch (filter.operator) {
case 'AND': return conditions.every(c => this.matchesFilter(e, c));
case 'OR': return conditions.some(c => this.matchesFilter(e, c));
case 'NOT': return !conditions.some(c => this.matchesFilter(e, c));
default: return false;
}
}
if (typeof filter.hasKeyword === 'string' && !e.keywords[filter.hasKeyword]) return false;
if (typeof filter.notKeyword === 'string' && e.keywords[filter.notKeyword]) return false;
if (typeof filter.from === 'string') {
const q = filter.from.toLowerCase();
const match = (e.from || []).some(f =>
(f.email || '').toLowerCase().includes(q) || (f.name || '').toLowerCase().includes(q));
if (!match) return false;
}
return true;
}
async getEmails(mailboxId?: string, _accountId?: string, limit: number = 50, position: number = 0, hasKeyword?: string, pinnedFirst?: boolean, extraFilter?: Record<string, unknown>): Promise<{ emails: Email[]; hasMore: boolean; total: number }> {
let filtered = this.data.emails;
if (mailboxId) {
filtered = filtered.filter(e => e.mailboxIds[mailboxId]);
}
if (hasKeyword) {
filtered = filtered.filter(e => e.keywords[hasKeyword]);
}
if (extraFilter) {
filtered = filtered.filter(e => this.matchesFilter(e, extraFilter));
}
const pinRank = (e: Email) => (pinnedFirst && e.keywords?.['$pinned'] ? 1 : 0);
filtered.sort((a, b) =>
pinRank(b) - pinRank(a) ||
@@ -199,6 +231,17 @@ export class DemoJMAPClient implements IJMAPClient {
return result;
}
async getCategoryUnreadCounts(mailboxId: string, tabs: Array<{ id: string; filter: Record<string, unknown> | null }>, _accountId?: string): Promise<Record<string, number>> {
const inBox = this.data.emails.filter(e => e.mailboxIds[mailboxId] && !e.keywords.$seen);
const result: Record<string, number> = {};
for (const tab of tabs) {
result[tab.id] = tab.filter
? inBox.filter(e => this.matchesFilter(e, tab.filter as Record<string, unknown>)).length
: inBox.length;
}
return result;
}
async searchEmails(query: string, mailboxId?: string, _accountId?: string, limit: number = 50, position: number = 0): Promise<{ emails: Email[]; hasMore: boolean; total: number }> {
const q = query.toLowerCase();
let filtered = this.data.emails.filter(e => {
@@ -284,6 +327,23 @@ export class DemoJMAPClient implements IJMAPClient {
if (email) email.keywords[keyword] = true;
}
async removeKeyword(emailId: string, keyword: string): Promise<void> {
const email = this.data.emails.find(e => e.id === emailId);
if (email) delete email.keywords[keyword];
}
async batchUpdateKeywords(emailIds: string[], patch: Record<string, boolean | null>): Promise<void> {
for (const id of emailIds) {
const email = this.data.emails.find(e => e.id === id);
if (!email) continue;
for (const [pointer, value] of Object.entries(patch)) {
const keyword = pointer.startsWith('keywords/') ? pointer.slice('keywords/'.length) : pointer;
if (value === null || value === false) delete email.keywords[keyword];
else email.keywords[keyword] = true;
}
}
}
async migrateKeyword(oldKeyword: string, newKeyword: string): Promise<number> {
let count = 0;
for (const email of this.data.emails) {
+8 -1
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@@ -80,11 +80,15 @@ export interface IJMAPClient {
// ── Emails ────────────────────────────────────────────────────
// `pinnedFirst` sorts emails carrying the $pinned keyword to the top
// (server-side hasKeyword sort comparator, RFC 8621), then receivedAt desc.
getEmails(mailboxId?: string, accountId?: string, limit?: number, position?: number, hasKeyword?: string, pinnedFirst?: boolean): Promise<{ emails: Email[]; hasMore: boolean; total: number }>;
// `extraFilter` is an arbitrary JMAP FilterCondition/FilterOperator ANDed
// into the view - used by the message-list category tabs (search-based).
getEmails(mailboxId?: string, accountId?: string, limit?: number, position?: number, hasKeyword?: string, pinnedFirst?: boolean, extraFilter?: Record<string, unknown>): Promise<{ emails: Email[]; hasMore: boolean; total: number }>;
getEmailsInMailbox(mailboxId: string): Promise<Email[]>;
getEmail(emailId: string, accountId?: string): Promise<Email | null>;
getSomeEmails(emailsId: string[], accountId?: string): Promise<Email[]>
getTagCounts(tagIds: string[]): Promise<Record<string, { total: number; unread: number }>>;
/** Per-tab unread counts for message-list category tabs (filter = resolved tab fragment, null = unfiltered). */
getCategoryUnreadCounts(mailboxId: string, tabs: Array<{ id: string; filter: Record<string, unknown> | null }>, accountId?: string): Promise<Record<string, number>>;
searchEmails(query: string, mailboxId?: string, accountId?: string, limit?: number, position?: number): Promise<{ emails: Email[]; hasMore: boolean; total: number }>;
advancedSearchEmails(
filter: Record<string, unknown>,
@@ -106,6 +110,9 @@ export interface IJMAPClient {
toggleStar(emailId: string, starred: boolean, accountId?: string): Promise<void>;
updateEmailKeywords(emailId: string, keywords: Record<string, boolean>, accountId?: string): Promise<void>;
setKeyword(emailId: string, keyword: string, accountId?: string): Promise<void>;
removeKeyword(emailId: string, keyword: string, accountId?: string): Promise<void>;
/** Apply one `keywords/<name>` patch fragment (true=add, null=remove) to many messages in a single Email/set. */
batchUpdateKeywords(emailIds: string[], patch: Record<string, boolean | null>, accountId?: string): Promise<void>;
migrateKeyword(oldKeyword: string, newKeyword: string): Promise<number>;
deleteEmail(emailId: string, accountId?: string): Promise<void>;
moveToTrash(emailId: string, trashMailboxId: string, accountId?: string, markAsRead?: boolean): Promise<void>;
+81 -4
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@@ -1173,16 +1173,27 @@ export class JMAPClient implements IJMAPClient {
}
}
async getEmails(mailboxId?: string, accountId?: string, limit: number = 50, position: number = 0, hasKeyword?: string, pinnedFirst?: boolean): Promise<{ emails: Email[], hasMore: boolean, total: number }> {
async getEmails(mailboxId?: string, accountId?: string, limit: number = 50, position: number = 0, hasKeyword?: string, pinnedFirst?: boolean, extraFilter?: Record<string, unknown>): Promise<{ emails: Email[], hasMore: boolean, total: number }> {
try {
const targetAccountId = accountId || this.accountId;
const filter: { inMailbox?: string; hasKeyword?: string } = {};
const simple: { inMailbox?: string; hasKeyword?: string } = {};
if (mailboxId) {
filter.inMailbox = mailboxId;
simple.inMailbox = mailboxId;
}
if (hasKeyword) {
filter.hasKeyword = hasKeyword;
simple.hasKeyword = hasKeyword;
}
// `extraFilter` is an arbitrary FilterCondition/FilterOperator ANDed
// into the view - the message-list category tabs' search contract.
const filter: Record<string, unknown> = extraFilter
? {
operator: "AND",
conditions: [
...(Object.keys(simple).length > 0 ? [simple] : []),
extraFilter,
],
}
: simple;
// Pinned-first uses the hasKeyword sort comparator (RFC 8621 §4.4.2);
// every page of a view must use the same sort or pagination tears.
const sort = pinnedFirst
@@ -1300,6 +1311,46 @@ export class JMAPClient implements IJMAPClient {
}
}
/**
* Per-tab unread counts for message-list category tabs. One Email/query
* (limit 0, calculateTotal) per tab, batched in a single request. Each
* entry's `filter` is the tab's resolved FilterCondition/FilterOperator
* (null = no extra condition, i.e. all unread in the mailbox).
*/
async getCategoryUnreadCounts(
mailboxId: string,
tabs: Array<{ id: string; filter: Record<string, unknown> | null }>,
accountId?: string,
): Promise<Record<string, number>> {
if (tabs.length === 0) return {};
const targetAccountId = accountId || this.accountId;
try {
const methodCalls: JMAPMethodCall[] = tabs.map((tab, i) => {
const conditions: Record<string, unknown>[] = [
{ inMailbox: mailboxId },
{ notKeyword: "$seen" },
];
if (tab.filter) conditions.push(tab.filter);
return ["Email/query", {
accountId: targetAccountId,
filter: { operator: "AND", conditions },
limit: 0,
calculateTotal: true,
}, `tab_${i}`];
});
const response = await this.request(methodCalls);
const result: Record<string, number> = {};
for (let i = 0; i < tabs.length; i++) {
result[tabs[i].id] = response.methodResponses?.[i]?.[1]?.total ?? 0;
}
return result;
} catch (error) {
console.error('Failed to get category tab counts:', error);
return {};
}
}
async getEmail(emailId: string, accountId?: string): Promise<Email | null> {
try {
const targetAccountId = accountId || this.accountId;
@@ -1458,6 +1509,32 @@ export class JMAPClient implements IJMAPClient {
]);
}
async removeKeyword(emailId: string, keyword: string, accountId?: string): Promise<void> {
await this.request([
["Email/set", {
accountId: accountId || this.accountId,
update: {
[emailId]: {
[`keywords/${keyword}`]: null,
},
},
}, "0"],
]);
}
/**
* Apply the same keyword PatchObject fragment to many messages in one
* Email/set. `patch` keys are `keywords/<name>` pointers with true (add)
* or null (remove) values - the category-tab move primitive.
*/
async batchUpdateKeywords(emailIds: string[], patch: Record<string, boolean | null>, accountId?: string): Promise<void> {
if (emailIds.length === 0 || Object.keys(patch).length === 0) return;
const update = Object.fromEntries(emailIds.map(id => [id, { ...patch }]));
await this.request([
["Email/set", { accountId: accountId || this.accountId, update }, "0"],
]);
}
async migrateKeyword(oldKeyword: string, newKeyword: string): Promise<number> {
// Query all email IDs that have the old keyword
const allIds: string[] = [];
+35 -1
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@@ -392,8 +392,22 @@ export const identityHooks = {
export const filterHooks = {
onFiltersLoaded: new HookBus(),
onFilterRuleChange: new HookBus(),
// Observer fired after the host successfully uploads the account's active
// Sieve script (visual-builder save or plugin-triggered regenerate).
onFiltersSave: new HookBus(),
onSieveScriptChange: new HookBus(),
/**
* Transform hook - runs on the full Sieve script text immediately before
* the host uploads it as the account's active script.
*
* handler(script: string, ctx: SieveScriptGenerateContext): string | undefined
*
* Return a modified script (e.g. append a plugin-managed categorizer
* section) or undefined to pass through. Handlers MUST keep the script
* valid — put extra `require` statements at the very top. Trigger a
* regeneration from a plugin via `api.sieve.regenerate()`.
*/
onSieveScriptGenerate: new HookBus(),
};
// §7.9 Task Hooks
@@ -565,6 +579,26 @@ export const renderHooks = {
onRenderEmailBody: new HookBus(),
};
// §7.24 Message-List Tab Hooks (Gmail-style category tabs)
export const messageListTabHooks = {
// Observer - the merged tab set changed (a plugin registered or cleared
// its tabs). Receives the resolved MessageListTab[] (empty when cleared).
onTabsChange: new HookBus(),
// Observer - the user switched tabs. Receives TabActivateContext.
onTabActivate: new HookBus(),
// Intercept - fires before the host applies a category keyword patch to
// messages (api.tabs.categorize or native UI). Receives
// EmailCategorizeContext; return false to cancel the move.
onBeforeEmailCategorize: new HookBus(),
// Observer - fires after the keyword patch was applied. Receives the same
// EmailCategorizeContext. This is where a plugin persists per-sender
// overrides and calls api.sieve.regenerate() ("do this for all mail from X").
onEmailCategorize: new HookBus(),
// Observer - per-tab unread counts were refreshed. Receives
// Record<tabId, number>.
onTabCountsRefresh: new HookBus(),
};
// ─── Aggregate: remove all handlers for a plugin across all buses ───
const allHookGroups = [
@@ -573,7 +607,7 @@ const allHookGroups = [
taskHooks, templateHooks, smimeHooks, vacationHooks,
uiHooks, themeHooks, toastHooks, dragDropHooks,
keyboardHooks, appLifecycleHooks, accountSecurityHooks, sidebarAppHooks,
avatarHooks, renderHooks, routerHooks,
avatarHooks, renderHooks, routerHooks, messageListTabHooks,
];
export function removeAllPluginHooks(pluginId: string): void {
+146 -1
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@@ -7,6 +7,9 @@ import { IMPLICIT_PERMISSIONS } from '../plugin-types';
import { toast as appToast } from '@/stores/toast-store';
import { useAuthStore } from '@/stores/auth-store';
import { useEmailStore } from '@/stores/email-store';
import { useFilterStore } from '@/stores/filter-store';
import { useMessageListTabsStore } from '@/stores/message-list-tabs-store';
import type { MessageListTabsConfig } from '../plugin-types';
import { apiFetch } from '../browser-navigation';
import { awaitDialog, awaitPrompt, type PromptField } from './host-dialog';
import { fileStorage } from '../plugin-storage';
@@ -65,7 +68,23 @@ const PERM_PER_METHOD: Record<string, Permission | null> = {
'ui.rerenderEmail': null,
'ui.rerenderFetchedEmails': null,
'ui.openExternalUrl': null,
'ui.downloadFile': 'ui:download-file'
'ui.downloadFile': 'ui:download-file',
// email keyword mutations
'email.setKeyword': 'email:write',
'email.removeKeyword': 'email:write',
// message-list category tabs
'tabs.set': 'ui:message-list-tabs',
'tabs.clear': 'ui:message-list-tabs',
'tabs.getState': 'ui:message-list-tabs',
'tabs.refreshCounts': 'ui:message-list-tabs',
// categorize rewrites message keywords, so it needs the write permission
// (a tabs-only plugin can still render tabs without it).
'tabs.categorize': 'email:write',
// sieve (delivery-time classification)
'sieve.isSupported': 'filters:read',
'sieve.getActiveScript': 'filters:read',
'sieve.validateScript': 'filters:write',
'sieve.regenerate': 'filters:write',
};
function hasPermission(plugin: InstalledPlugin, perm: Permission): boolean {
@@ -511,6 +530,90 @@ async function downloadFile(args: { content: string; filename: string; contentTy
}
}
// ─── Email keyword mutations ──────────────────────────────────
// Syntactic JMAP keyword check (RFC 5788 charset, conservative). Semantics
// (reserved keywords for category tabs) are enforced by the tabs store.
const PLUGIN_KEYWORD_RE = /^[a-z0-9$][a-z0-9$_.:-]{0,127}$/i;
function assertPluginKeyword(keyword: unknown): string {
if (typeof keyword !== 'string' || !PLUGIN_KEYWORD_RE.test(keyword)) {
throw new Error(`Invalid JMAP keyword "${String(keyword)}"`);
}
return keyword;
}
function requireClient() {
const { client } = useAuthStore.getState();
if (!client) throw new Error('No active session');
return client;
}
// ─── Message-list category tabs ───────────────────────────────
/**
* Resolve the currently viewed mailbox to its JMAP id + owning account, the
* same way email-store's fetchEmails does (shared mailboxes use namespaced
* store ids).
*/
function resolveSelectedMailboxForQuery(): { jmapMailboxId: string; accountId?: string } | null {
const { selectedMailbox, mailboxes } = useEmailStore.getState();
if (!selectedMailbox) return null;
const mailbox = mailboxes.find((mb) => mb.id === selectedMailbox);
if (!mailbox) return null;
return {
jmapMailboxId: mailbox.originalId || mailbox.id,
accountId: mailbox.isShared ? mailbox.accountId : undefined,
};
}
async function doTabsRefreshCounts(): Promise<Record<string, number>> {
const client = requireClient();
const resolved = resolveSelectedMailboxForQuery();
if (!resolved) return {};
await useMessageListTabsStore.getState().refreshCounts(client, resolved.jmapMailboxId, resolved.accountId);
return useMessageListTabsStore.getState().tabCounts;
}
async function doTabsCategorize(emailIds: unknown, tabId: unknown): Promise<boolean> {
if (!Array.isArray(emailIds) || emailIds.some((id) => typeof id !== 'string')) {
throw new Error('tabs.categorize: emailIds must be a string array');
}
if (typeof tabId !== 'string') throw new Error('tabs.categorize: tabId must be a string');
const client = requireClient();
const moved = await useMessageListTabsStore.getState().categorizeEmails(client, emailIds as string[], tabId);
if (moved) void doTabsRefreshCounts().catch(() => { /* counts refresh is best-effort */ });
return moved;
}
// ─── Sieve (delivery-time classification) ─────────────────────
async function doSieveGetActiveScript(): Promise<{ id: string; name: string; content: string } | null> {
const client = requireClient();
if (!client.supportsSieve()) return null;
const scripts = await client.getSieveScripts();
const active = scripts.find((s) => s.isActive);
if (!active) return null;
const content = await client.getSieveScriptContent(active.blobId);
return { id: active.id, name: active.name, content };
}
/**
* Re-generate and re-upload the account's active Sieve script through the
* filter store, which runs the filterHooks.onSieveScriptGenerate transform -
* the supported way for a plugin to install/update its managed section
* (e.g. the inbox-category classifier) without clobbering user filters.
*/
async function doSieveRegenerate(): Promise<void> {
const client = requireClient();
if (!client.supportsSieve()) throw new Error('Sieve is not supported by this server');
const filterStore = useFilterStore.getState();
// Sync from the server first: a background plugin may call this before the
// filters settings page has ever populated the store.
await filterStore.fetchFilters(client);
await useFilterStore.getState().saveFilters(client);
}
// ─── admin config (same as before) ────────────────────────────
async function adminGetAll(pluginId: string): Promise<Record<string, unknown>> {
@@ -680,6 +783,48 @@ export async function dispatchApiCall(
return downloadFile(opts);
}
case 'email.setKeyword': {
const keyword = assertPluginKeyword(args[1]);
await requireClient().setKeyword(String(args[0]), keyword, args[2] as string | undefined);
return undefined;
}
case 'email.removeKeyword': {
const keyword = assertPluginKeyword(args[1]);
await requireClient().removeKeyword(String(args[0]), keyword, args[2] as string | undefined);
return undefined;
}
case 'tabs.set': {
// validateTabsConfig (inside registerTabs) throws a developer-readable
// error that surfaces as the api.tabs.set rejection in the sandbox.
useMessageListTabsStore.getState().registerTabs(plugin.id, args[0] as MessageListTabsConfig);
return undefined;
}
case 'tabs.clear': {
useMessageListTabsStore.getState().clearTabs(plugin.id);
return undefined;
}
case 'tabs.getState': {
const { tabs, activeTabId, tabCounts } = useMessageListTabsStore.getState();
return { tabs, activeTabId, tabCounts };
}
case 'tabs.refreshCounts': return doTabsRefreshCounts();
case 'tabs.categorize': return doTabsCategorize(args[0], args[1]);
case 'sieve.isSupported': {
const { client } = useAuthStore.getState();
return !!client?.supportsSieve();
}
case 'sieve.getActiveScript': return doSieveGetActiveScript();
case 'sieve.validateScript': {
if (typeof args[0] !== 'string') throw new Error('sieve.validateScript: content must be a string');
return requireClient().validateSieveScript(args[0]);
}
case 'sieve.regenerate': {
await doSieveRegenerate();
return undefined;
}
default:
throw new Error(`Unhandled method "${method}"`);
}
+6
View File
@@ -10,8 +10,10 @@ import {
uiHooks, themeHooks, toastHooks, dragDropHooks,
keyboardHooks, appLifecycleHooks, accountSecurityHooks,
sidebarAppHooks, avatarHooks, renderHooks, routerHooks,
messageListTabHooks,
removeAllPluginHooks, pluginErrorTracker,
} from '../plugin-hooks';
import { useMessageListTabsStore } from '@/stores/message-list-tabs-store';
import { verifyBundle } from './bundle-integrity';
import { createBackgroundInstance } from './host-bridge';
import { resolvePluginTier } from './tier';
@@ -30,6 +32,7 @@ const HOOK_BUSES: Record<string, AnyBus> = Object.assign({},
uiHooks, themeHooks, toastHooks, dragDropHooks,
keyboardHooks, appLifecycleHooks, accountSecurityHooks,
sidebarAppHooks, avatarHooks, renderHooks, routerHooks,
messageListTabHooks,
) as Record<string, AnyBus>;
// ─── Store accessor (status updates flow through the existing store) ──
@@ -179,6 +182,9 @@ export function unloadSandboxedPlugin(pluginId: string): void {
try { d.dispose(); } catch { /* ignore */ }
}
removeAllPluginHooks(pluginId);
// Drop any message-list category tabs the plugin registered so the strip
// disappears (and the inbox unfilters) the moment the plugin is disabled.
try { useMessageListTabsStore.getState().clearTabs(pluginId); } catch { /* ignore */ }
try { entry.background.destroy(); } catch { /* ignore */ }
cancelPluginDialogs(pluginId);
pluginErrorTracker.reset(pluginId);
+7 -1
View File
@@ -246,7 +246,13 @@ export const API_METHODS = [
'upfiles.get', 'upfiles.save',
'admin.getConfig', 'admin.getAllConfig', 'admin.setConfig', 'admin.deleteConfig',
'toast.success', 'toast.error', 'toast.info', 'toast.warning',
'ui.confirm', 'ui.alert', 'ui.prompt', 'ui.rerenderEmail', 'ui.rerenderFetchedEmails', 'ui.openExternalUrl', 'ui.downloadFile'
'ui.confirm', 'ui.alert', 'ui.prompt', 'ui.rerenderEmail', 'ui.rerenderFetchedEmails', 'ui.openExternalUrl', 'ui.downloadFile',
// Email keyword mutations (JMAP Email/set keyword patches).
'email.setKeyword', 'email.removeKeyword',
// Message-list category tabs (Gmail-style inbox tabs).
'tabs.set', 'tabs.clear', 'tabs.getState', 'tabs.categorize', 'tabs.refreshCounts',
// Sieve integration for delivery-time classification plugins.
'sieve.isSupported', 'sieve.getActiveScript', 'sieve.validateScript', 'sieve.regenerate',
] as const;
export type ApiMethod = (typeof API_METHODS)[number];
+45
View File
@@ -249,6 +249,51 @@ function buildPluginApi(manifest: PluginManifest) {
downloadFile: (opts: { content: string; filename: string; contentType?: string }) =>
callApi('ui.downloadFile', [opts]) as Promise<void>,
},
// Email keyword mutations (permission: email:write). Keywords follow JMAP
// syntax, e.g. '$category-promotions' or '$label:<tagId>'.
email: {
setKeyword: (emailId: string, keyword: string, accountId?: string) =>
callApi('email.setKeyword', [emailId, keyword, accountId]) as Promise<void>,
removeKeyword: (emailId: string, keyword: string, accountId?: string) =>
callApi('email.removeKeyword', [emailId, keyword, accountId]) as Promise<void>,
},
// Message-list category tabs (permission: ui:message-list-tabs; categorize
// additionally needs email:write). The host renders the strip natively and
// ANDs the active tab's JMAP search filter (`query`) or keyword into the
// mailbox Email/query - see MessageListTabsConfig in plugin-types. Tabs
// are cleared automatically when the plugin unloads.
tabs: {
/** Register (or replace) this plugin's tab set. */
set: (config: unknown) => callApi('tabs.set', [config]) as Promise<void>,
/** Remove this plugin's tabs from the strip. */
clear: () => callApi('tabs.clear', []) as Promise<void>,
/** Current merged tabs, active tab id and unread counts. */
getState: () => callApi('tabs.getState', []) as Promise<{
tabs: unknown[]; activeTabId: string | null; tabCounts: Record<string, number>;
}>,
/** Re-query per-tab unread counts for the current mailbox. */
refreshCounts: () => callApi('tabs.refreshCounts', []) as Promise<Record<string, number>>,
/**
* Move messages to a tab (patches the category keywords via Email/set).
* Fires onBeforeEmailCategorize (cancellable) and onEmailCategorize.
* Resolves false when cancelled.
*/
categorize: (emailIds: string[], tabId: string) =>
callApi('tabs.categorize', [emailIds, tabId]) as Promise<boolean>,
},
// Sieve integration for delivery-time classification (permissions:
// filters:read / filters:write). Plugins never write scripts directly -
// they register an onSieveScriptGenerate transform hook and call
// regenerate(), so user filter rules and plugin sections coexist in the
// single active script.
sieve: {
isSupported: () => callApi('sieve.isSupported', []) as Promise<boolean>,
getActiveScript: () => callApi('sieve.getActiveScript', []) as Promise<{ id: string; name: string; content: string } | null>,
validateScript: (content: string) =>
callApi('sieve.validateScript', [content]) as Promise<{ isValid: boolean; errors?: string[] }>,
/** Rebuild + re-upload the active script, running onSieveScriptGenerate. */
regenerate: () => callApi('sieve.regenerate', []) as Promise<void>,
},
admin: {
getConfig: (key: string) => callApi('admin.getConfig', [key]),
getAllConfig: () => callApi('admin.getAllConfig', []),
+118
View File
@@ -639,6 +639,119 @@ export interface EmailListBadge {
title?: string;
}
// ─── Message-list category tabs (Gmail-style inbox tabs) ─────
//
// The tab contract lives in core so tabs render natively: a plugin registers
// tab DEFINITIONS via `api.tabs.set(config)`; the host renders the tab strip
// above the message list, ANDs the active tab's filter into the mailbox
// Email/query, and maintains per-tab unread badges.
//
// A tab selects its messages in one of two ways:
// 1. `query` — a raw JMAP Email FilterCondition/FilterOperator evaluated
// server-side at view time (search-based tabs). Nothing is written to
// the messages; classification is a live query (e.g. match the
// List-Unsubscribe header, or an OR of social sender domains).
// 2. `keyword` — a `hasKeyword` filter (durable tabs). Classification then
// happens out-of-band — typically a plugin-managed Sieve section at
// delivery (see filterHooks.onSieveScriptGenerate) or explicit
// recategorization via `api.tabs.categorize`.
// A tab with NEITHER is the default bucket ("Primary"): it matches messages
// that match none of the other tabs' filters (server-side NOT).
/**
* One tab in the message-list tab strip.
*/
export interface MessageListTab {
/** Stable id within the plugin, e.g. "promotions". Used in hooks and counts. */
id: string;
/** Display label (localize in the plugin via api.i18n before registering). */
label: string;
/**
* Search-based selection: a JMAP Email FilterCondition or FilterOperator
* (RFC 8621 §4.4.1), e.g. `{ header: ["List-Unsubscribe"] }` or
* `{ operator: "OR", conditions: [{ from: "reddit.com" }, ...] }`.
* The host ANDs it with the mailbox condition. Takes precedence over
* `keyword` when both are set.
*/
query?: Record<string, unknown>;
/**
* Keyword-based selection, e.g. "$category-promotions" filters via
* `hasKeyword`. Use for durable, Sieve-assigned categories.
*/
keyword?: string | null;
/** Lucide icon name rendered before the label (optional). */
icon?: string;
/** CSS color for the active-tab indicator / badge accent (optional). */
color?: string;
/** Sort order within the strip (ascending, default 100). */
order?: number;
/** Show the unread-count badge for this tab. Default true. */
showUnreadBadge?: boolean;
}
/**
* Registered by a plugin via `api.tabs.set(config)` (permission
* `ui:message-list-tabs`). Cleared automatically when the plugin unloads,
* or explicitly via `api.tabs.clear()`.
*/
export interface MessageListTabsConfig {
tabs: MessageListTab[];
/**
* Mailbox roles the strip renders for. Default ['inbox'] category tabs
* on Trash or Sent are almost never what anyone wants.
*/
mailboxRoles?: string[];
}
/**
* Passed to messageListTabHooks.onTabActivate observers when the user
* switches tabs.
*/
export interface TabActivateContext {
tabId: string;
previousTabId: string | null;
/** Store id of the mailbox the strip is filtering. */
mailboxId: string | null;
}
/**
* Passed to messageListTabHooks.onBeforeEmailCategorize (intercept return
* false to cancel) and onEmailCategorize (observer, after the keyword patch
* was applied). Describes a host-driven recategorization triggered by
* `api.tabs.categorize(emailIds, toTabId)` or native UI. Only keyword-based
* (or default) tabs can be categorize targets search-based tabs derive
* membership from their query, so a plugin implements "move to tab" there by
* updating its query (e.g. a per-sender override) and re-registering.
*/
export interface EmailCategorizeContext {
emailIds: string[];
/** Target tab id. */
toTabId: string;
/** Keyword added by the move, or null when the target is the default tab. */
keywordAdded: string | null;
/** Category keywords removed from the messages by the move. */
keywordsRemoved: string[];
/**
* Unique sender addresses of the affected messages the hook payload a
* plugin needs to offer Gmail-style "do this for all mail from X"
* (per-sender overrides, Sieve regeneration).
*/
senders: string[];
}
/**
* Second argument to filterHooks.onSieveScriptGenerate transform handlers.
* The transform's value is the full Sieve script the host is about to upload
* as the account's active script; handlers return a modified script (e.g.
* with a plugin-managed categorizer section appended) or undefined to pass
* through. Keep `require` statements at the top of the script the host
* uploads the returned text verbatim after validation.
*/
export interface SieveScriptGenerateContext {
/** Account whose active script is being (re)generated. */
accountId: string | null;
}
/**
* Passed to onMailtoIntercept handlers.
* Return false to prevent the browser from opening the system mail client.
@@ -926,6 +1039,8 @@ export const ALL_PERMISSIONS = [
'ui:observe', 'ui:toolbar', 'ui:app-top-banner', 'ui:email-banner', 'ui:email-footer',
'ui:email-details',
'ui:download-file',
// Register native message-list category tabs (Gmail-style inbox tabs).
'ui:message-list-tabs',
'ui:composer-toolbar', 'ui:composer-sidebar',
'ui:sidebar-widget', 'ui:settings-section',
'ui:context-menu', 'ui:navigation-rail', 'ui:keyboard',
@@ -941,6 +1056,9 @@ export const IMPLICIT_PERMISSIONS: Permission[] = ['ui:observe', 'app:lifecycle'
// ─── Validation ──────────────────────────────────────────────
/** Upper bound on tabs a single plugin may register via api.tabs.set. */
export const MAX_MESSAGE_LIST_TABS = 8;
export const MAX_PLUGIN_SIZE = 5 * 1024 * 1024; // 5 MB
export const MAX_THEME_SIZE = 2 * 1024 * 1024; // 2 MB (was 1 MB; v2 themes may ship a skin.css)
/**
+30 -2
View File
@@ -10,6 +10,7 @@ import type { ExternalSearchResult } from "@/lib/plugin-types";
import { fetchUnifiedEmails, fetchUnifiedMailboxCounts, searchUnifiedEmails, advancedSearchUnifiedEmails, fetchCrossViewEmails, searchCrossViewEmails, advancedSearchCrossViewEmails, getCrossUnreadTotal, type UnifiedAccountClient, type UnifiedMailboxCounts } from "@/lib/unified-mailbox";
import { useAuthStore } from "@/stores/auth-store";
import { useAccountStore } from "@/stores/account-store";
import { useMessageListTabsStore } from "@/stores/message-list-tabs-store";
type ScheduledSubmissionMetadata = {
submissionId: string;
@@ -1060,9 +1061,23 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
const { selectedKeyword } = get();
const keywordFilter = selectedKeyword ? `$label:${selectedKeyword}` : undefined;
// Plugin-registered category tabs (Gmail-style) AND their resolved JMAP
// filter fragment into the mailbox view. Tag views take precedence.
const categoryFilter = selectedKeyword
? null
: useMessageListTabsStore.getState().getCategoryFilter(mailbox?.role);
// When filtering by tag, omit the mailbox constraint so emails across
// all folders that carry the tag are returned.
const result = await effectiveClient.getEmails(selectedKeyword ? undefined : jmapMailboxId, accountId, emailsPerPage, 0, keywordFilter, true);
const result = await effectiveClient.getEmails(
selectedKeyword ? undefined : jmapMailboxId,
accountId,
emailsPerPage,
0,
keywordFilter,
true,
categoryFilter ?? undefined,
);
const enrichedEmails = await emailHooks.onEmailsFetched.transform(result.emails);
set({
emails: annotateScheduledEmails(enrichedEmails, get().scheduledSubmissionByEmailId),
@@ -1217,7 +1232,20 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
const jmapMailboxId = mailbox?.originalId || selectedMailbox;
// When filtering by tag, omit the mailbox constraint (same rationale as fetchEmails).
result = await effectiveClient.getEmails(selectedKeyword ? undefined : jmapMailboxId, accountId, emailsPerPage, position, selectedKeyword ? `$label:${selectedKeyword}` : undefined, true);
// Category tabs (plugin-registered) must filter pagination the same
// way as the initial fetch or pages would mix categories.
const categoryFilter = selectedKeyword
? null
: useMessageListTabsStore.getState().getCategoryFilter(mailbox?.role);
result = await effectiveClient.getEmails(
selectedKeyword ? undefined : jmapMailboxId,
accountId,
emailsPerPage,
position,
selectedKeyword ? `$label:${selectedKeyword}` : undefined,
true,
categoryFilter ?? undefined,
);
}
// Use fresh state when merging to avoid overwriting concurrent updates
+13
View File
@@ -3,6 +3,7 @@ import type { IJMAPClient } from '@/lib/jmap/client-interface';
import type { FilterRule, SieveCapabilities, VacationSieveConfig } from '@/lib/jmap/sieve-types';
import { parseScript } from '@/lib/sieve/parser';
import { generateScript } from '@/lib/sieve/generator';
import { filterHooks } from '@/lib/plugin-hooks';
import { debug } from '@/lib/debug';
interface SieveAccount {
@@ -144,6 +145,16 @@ export const useFilterStore = create<FilterStore>()((set, get) => ({
content = generateScript(rules, vacationSettings || undefined, { externalRequires });
}
// Let plugins graft their managed sections (e.g. an inbox-category
// classifier) into the script before it becomes the active one. A
// handler returning a non-string is ignored to keep the upload valid.
const transformed = await filterHooks.onSieveScriptGenerate.transform(content, {
accountId: selectedAccountId || null,
});
if (typeof transformed === 'string' && transformed.trim().length > 0) {
content = transformed;
}
if (activeScriptId) {
await client.updateSieveScript(activeScriptId, content, true, selectedAccountId || undefined);
} else {
@@ -153,6 +164,8 @@ export const useFilterStore = create<FilterStore>()((set, get) => ({
set({ isSaving: false, rawScript: content });
debug.log('filters', 'Filters saved successfully');
void filterHooks.onFiltersSave.emit({ accountId: selectedAccountId || null });
void filterHooks.onSieveScriptChange.emit({ accountId: selectedAccountId || null, script: content });
} catch (error) {
debug.error('Failed to save filters:', error);
set({
+339
View File
@@ -0,0 +1,339 @@
// Host-side registry for plugin-provided message-list category tabs
// (Gmail-style Primary / Promotions / Social / Updates).
//
// Plugins register tab DEFINITIONS via `api.tabs.set(config)`; this store
// merges them, tracks the active tab, and resolves the JMAP filter fragment
// the email store ANDs into the mailbox Email/query. Tabs are search-first:
// a tab's `query` is evaluated server-side at view time (no mail mutation);
// `keyword` tabs filter via hasKeyword for durable Sieve-assigned categories.
// The tab strip itself renders natively (components/email/message-list-tabs.tsx)
// — no plugin iframe involved, per the core contract in lib/plugin-types.ts.
import { create } from 'zustand';
import type { IJMAPClient } from '@/lib/jmap/client-interface';
import type { Email } from '@/lib/jmap/types';
import type { MessageListTab, MessageListTabsConfig } from '@/lib/plugin-types';
import { MAX_MESSAGE_LIST_TABS } from '@/lib/plugin-types';
import { messageListTabHooks } from '@/lib/plugin-hooks';
import { useEmailStore } from './email-store';
// ─── Validation ──────────────────────────────────────────────
// System keywords a tab may never claim: filtering the inbox by these would
// hijack read/star/pin semantics, and `$label:` keywords belong to user tags.
const RESERVED_KEYWORDS = new Set([
'$seen', '$flagged', '$draft', '$answered', '$forwarded',
'$recent', '$junk', '$notjunk', '$phishing', '$pinned',
]);
const TAB_ID_RE = /^[a-z0-9][a-z0-9_-]{0,31}$/i;
// RFC 5788 keyword syntax, conservatively narrowed. Keywords are matched
// case-insensitively by IMAP servers, so we lowercase on normalization.
const KEYWORD_RE = /^\$[a-z0-9][a-z0-9_.-]{0,63}$/;
// Upper bound on a serialized tab query — a filter tree bigger than this is
// either a bug or an abuse vector for the JMAP request budget.
const MAX_QUERY_JSON_BYTES = 16 * 1024;
function validateTabQuery(tabId: string, query: unknown): Record<string, unknown> {
if (typeof query !== 'object' || query === null || Array.isArray(query)) {
throw new Error(`tabs.set: tab "${tabId}" query must be a JMAP filter object`);
}
let json: string;
try {
json = JSON.stringify(query);
} catch {
throw new Error(`tabs.set: tab "${tabId}" query is not serializable`);
}
if (json.length > MAX_QUERY_JSON_BYTES) {
throw new Error(`tabs.set: tab "${tabId}" query exceeds ${MAX_QUERY_JSON_BYTES} bytes`);
}
// Deep-clone via JSON so the stored filter is plain data (no prototypes,
// functions or getters can cross into request bodies).
return JSON.parse(json) as Record<string, unknown>;
}
/**
* Validate and normalize a plugin-supplied tabs config. Throws with a
* developer-readable message on any violation (surfaces as the api.tabs.set
* promise rejection inside the plugin sandbox).
*/
export function validateTabsConfig(config: MessageListTabsConfig): MessageListTabsConfig {
if (!config || !Array.isArray(config.tabs)) throw new Error('tabs.set: config.tabs must be an array');
if (config.tabs.length < 2) throw new Error('tabs.set: at least 2 tabs required');
if (config.tabs.length > MAX_MESSAGE_LIST_TABS) throw new Error(`tabs.set: at most ${MAX_MESSAGE_LIST_TABS} tabs allowed`);
const ids = new Set<string>();
let defaults = 0;
const tabs: MessageListTab[] = config.tabs.map((t) => {
if (!t || typeof t.id !== 'string' || !TAB_ID_RE.test(t.id)) {
throw new Error(`tabs.set: invalid tab id "${String(t?.id)}"`);
}
if (ids.has(t.id)) throw new Error(`tabs.set: duplicate tab id "${t.id}"`);
ids.add(t.id);
if (typeof t.label !== 'string' || !t.label.trim() || t.label.length > 40) {
throw new Error(`tabs.set: tab "${t.id}" needs a label (max 40 chars)`);
}
const query = t.query !== undefined ? validateTabQuery(t.id, t.query) : undefined;
let keyword: string | null | undefined = undefined;
if (t.keyword !== null && t.keyword !== undefined) {
keyword = String(t.keyword).toLowerCase();
if (!KEYWORD_RE.test(keyword)) {
throw new Error(`tabs.set: tab "${t.id}" keyword "${t.keyword}" is not a valid JMAP keyword (must match ${KEYWORD_RE})`);
}
if (RESERVED_KEYWORDS.has(keyword) || keyword.startsWith('$label')) {
throw new Error(`tabs.set: tab "${t.id}" may not use reserved keyword "${keyword}"`);
}
}
if (!query && !keyword) defaults++;
return {
id: t.id,
label: t.label.trim(),
query,
keyword: keyword ?? null,
icon: typeof t.icon === 'string' ? t.icon.slice(0, 40) : undefined,
color: typeof t.color === 'string' ? t.color.slice(0, 40) : undefined,
order: typeof t.order === 'number' && Number.isFinite(t.order) ? t.order : 100,
showUnreadBadge: t.showUnreadBadge !== false,
};
});
if (defaults > 1) throw new Error('tabs.set: at most one default tab (no query, no keyword) allowed');
const mailboxRoles = Array.isArray(config.mailboxRoles) && config.mailboxRoles.length > 0
? config.mailboxRoles.filter((r): r is string => typeof r === 'string').map((r) => r.toLowerCase())
: ['inbox'];
return { tabs, mailboxRoles };
}
// ─── Filter resolution ───────────────────────────────────────
function isDefaultTab(tab: MessageListTab): boolean {
return !tab.query && !tab.keyword;
}
/** The JMAP filter fragment that positively selects a (non-default) tab. */
function positiveFragment(tab: MessageListTab): Record<string, unknown> | null {
if (tab.query) return tab.query;
if (tab.keyword) return { hasKeyword: tab.keyword };
return null;
}
/**
* Resolve the filter fragment for one tab in the context of all tabs.
* Default tab = NOT(every other tab's positive fragment) RFC 8620 §5.5:
* a NOT FilterOperator is true iff none of its conditions match.
*/
export function resolveTabFilter(tab: MessageListTab, allTabs: MessageListTab[]): Record<string, unknown> | null {
const positive = positiveFragment(tab);
if (positive) return positive;
const others = allTabs
.filter((t) => t.id !== tab.id)
.map(positiveFragment)
.filter((f): f is Record<string, unknown> => !!f);
return others.length > 0 ? { operator: 'NOT', conditions: others } : null;
}
// ─── Store ───────────────────────────────────────────────────
interface MessageListTabsStore {
/** pluginId → validated config. */
registrations: Record<string, MessageListTabsConfig>;
/** Merged, order-sorted tabs across all registrations. */
tabs: MessageListTab[];
/** Union of mailbox roles the strip is enabled for (lowercase). */
mailboxRoles: string[];
activeTabId: string | null;
/** tabId → unread count for the current mailbox. */
tabCounts: Record<string, number>;
isCountsLoading: boolean;
registerTabs: (pluginId: string, config: MessageListTabsConfig) => void;
clearTabs: (pluginId: string) => void;
setActiveTab: (tabId: string, mailboxId: string | null) => void;
/**
* JMAP filter fragment for the active tab (to AND into the mailbox query),
* or null when tabs don't apply to this mailbox role.
*/
getCategoryFilter: (mailboxRole: string | null | undefined) => Record<string, unknown> | null;
/** True when the strip should render for this mailbox role. */
isEnabledForRole: (mailboxRole: string | null | undefined) => boolean;
refreshCounts: (client: IJMAPClient, jmapMailboxId: string, accountId?: string) => Promise<void>;
/**
* Move messages to a keyword-based (or default) tab: patches category
* keywords via Email/set, updates the visible list optimistically, and
* fires the categorize hooks. Returns false when a plugin intercept
* cancelled the move or the target tab is search-based.
*/
categorizeEmails: (client: IJMAPClient, emailIds: string[], toTabId: string) => Promise<boolean>;
}
function mergeRegistrations(registrations: Record<string, MessageListTabsConfig>): {
tabs: MessageListTab[];
mailboxRoles: string[];
} {
const tabs: MessageListTab[] = [];
const roles = new Set<string>();
let haveDefault = false;
const sorted = Object.values(registrations)
.flatMap((cfg) => {
for (const r of cfg.mailboxRoles ?? ['inbox']) roles.add(r);
return cfg.tabs;
})
.sort((a, b) => (a.order ?? 100) - (b.order ?? 100));
for (const tab of sorted) {
// Across plugins, only the first default tab (by order) survives — two
// "everything else" buckets can't both be right.
if (isDefaultTab(tab)) {
if (haveDefault) continue;
haveDefault = true;
}
tabs.push(tab);
}
return { tabs, mailboxRoles: [...roles] };
}
function pickActiveTab(tabs: MessageListTab[], prevActive: string | null): string | null {
if (tabs.some((t) => t.id === prevActive)) return prevActive;
return (tabs.find(isDefaultTab) ?? tabs[0])?.id ?? null;
}
export const useMessageListTabsStore = create<MessageListTabsStore>()((set, get) => ({
registrations: {},
tabs: [],
mailboxRoles: [],
activeTabId: null,
tabCounts: {},
isCountsLoading: false,
registerTabs: (pluginId, config) => {
const validated = validateTabsConfig(config);
const registrations = { ...get().registrations, [pluginId]: validated };
const merged = mergeRegistrations(registrations);
set({ registrations, ...merged, activeTabId: pickActiveTab(merged.tabs, get().activeTabId) });
void messageListTabHooks.onTabsChange.emit(merged.tabs);
},
clearTabs: (pluginId) => {
if (!(pluginId in get().registrations)) return;
const registrations = { ...get().registrations };
delete registrations[pluginId];
const merged = mergeRegistrations(registrations);
set({
registrations,
...merged,
activeTabId: pickActiveTab(merged.tabs, get().activeTabId),
...(merged.tabs.length === 0 ? { tabCounts: {} } : {}),
});
void messageListTabHooks.onTabsChange.emit(merged.tabs);
},
setActiveTab: (tabId, mailboxId) => {
const { tabs, activeTabId } = get();
if (!tabs.some((t) => t.id === tabId) || tabId === activeTabId) return;
set({ activeTabId: tabId });
void messageListTabHooks.onTabActivate.emit({ tabId, previousTabId: activeTabId, mailboxId });
},
isEnabledForRole: (mailboxRole) => {
const { tabs, mailboxRoles } = get();
return tabs.length > 0 && !!mailboxRole && mailboxRoles.includes(mailboxRole.toLowerCase());
},
getCategoryFilter: (mailboxRole) => {
const { tabs, activeTabId } = get();
if (!get().isEnabledForRole(mailboxRole)) return null;
const active = tabs.find((t) => t.id === activeTabId) ?? tabs.find(isDefaultTab) ?? tabs[0];
if (!active) return null;
return resolveTabFilter(active, tabs);
},
refreshCounts: async (client, jmapMailboxId, accountId) => {
const { tabs } = get();
if (tabs.length === 0) return;
set({ isCountsLoading: true });
try {
const counts = await client.getCategoryUnreadCounts(
jmapMailboxId,
tabs.map((t) => ({ id: t.id, filter: resolveTabFilter(t, tabs) })),
accountId,
);
set({ tabCounts: counts, isCountsLoading: false });
void messageListTabHooks.onTabCountsRefresh.emit(counts);
} catch (err) {
console.error('Failed to refresh category tab counts:', err);
set({ isCountsLoading: false });
}
},
categorizeEmails: async (client, emailIds, toTabId) => {
const { tabs } = get();
const target = tabs.find((t) => t.id === toTabId);
if (!target || emailIds.length === 0) return false;
// Search-based tabs derive membership from their query — there is no
// keyword to write. The owning plugin implements moves there by updating
// its query (per-sender override) and re-registering.
if (target.query) return false;
const allKeywords = tabs.map((t) => t.keyword).filter((k): k is string => !!k);
const keywordAdded = target.keyword ?? null;
const keywordsRemoved = allKeywords.filter((k) => k !== keywordAdded);
if (!keywordAdded && keywordsRemoved.length === 0) return false;
const emailState = useEmailStore.getState();
const affected = emailState.emails.filter((e) => emailIds.includes(e.id));
const senders = [...new Set(
affected.flatMap((e) => (e.from ?? []).map((f) => f.email?.toLowerCase()).filter((x): x is string => !!x)),
)];
const ctx = { emailIds, toTabId, keywordAdded, keywordsRemoved, senders };
const proceed = await messageListTabHooks.onBeforeEmailCategorize.intercept(ctx);
if (!proceed) return false;
// One PatchObject per message: drop every other category keyword, add the
// target's (removals of absent keywords are no-ops per RFC 8620 §5.3).
const patch: Record<string, boolean | null> = {};
for (const k of keywordsRemoved) patch[`keywords/${k}`] = null;
if (keywordAdded) patch[`keywords/${keywordAdded}`] = true;
// Group by owning account so shared-mailbox messages patch correctly.
const byAccount = new Map<string | undefined, string[]>();
for (const id of emailIds) {
const email = affected.find((e) => e.id === id) as (Email & { accountId?: string }) | undefined;
const acct = email?.accountId;
const list = byAccount.get(acct) ?? [];
list.push(id);
byAccount.set(acct, list);
}
for (const [acct, ids] of byAccount) {
await client.batchUpdateKeywords(ids, patch, acct);
}
// Optimistic local update: fix keywords in place, and drop moved messages
// from a keyword-filtered view they no longer belong to. (Query-based
// active tabs are left as-is — membership there is server-derived.)
const idSet = new Set(emailIds);
const activeTab = tabs.find((t) => t.id === get().activeTabId);
const shouldDrop = !!activeTab && !activeTab.query && activeTab.id !== toTabId
&& get().isEnabledForRole(
emailState.mailboxes.find((mb) => mb.id === emailState.selectedMailbox)?.role ?? null,
);
useEmailStore.setState((state) => ({
emails: state.emails
.map((e) => {
if (!idSet.has(e.id)) return e;
const keywords = { ...e.keywords };
for (const k of keywordsRemoved) delete keywords[k];
if (keywordAdded) keywords[keywordAdded] = true;
return { ...e, keywords };
})
.filter((e) => !shouldDrop || !idSet.has(e.id)),
}));
void messageListTabHooks.onEmailCategorize.emit(ctx);
return true;
},
}));