β¨ feat(desktop): show zoom level HUD on Cmd+/- and Cmd+0#15294
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Replace Electron built-in zoomIn/zoomOut/resetZoom menu roles with custom handlers backed by a new ZoomService, which clamps the zoom level to [-3, +3] and broadcasts zoom:changed to the renderer. The renderer mounts a macOS-style frosted HUD that fades in for 1.5s after each zoom change so users can see the resulting percentage and confirm when they're back to 100%.
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| { label: t('view.zoomIn'), role: 'zoomIn' }, | ||
| { label: t('view.zoomOut'), role: 'zoomOut' }, | ||
| this.buildZoomMenuItem('reset', t('view.resetZoom'), 'CmdOrCtrl+0'), | ||
| this.buildZoomMenuItem('in', t('view.zoomIn'), 'CmdOrCtrl+='), |
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Preserve the standard plus zoom shortcut
When users press the advertised Cmd/Ctrl++ shortcut, this custom menu item only registers CmdOrCtrl+=; Electron's accelerator docs list = and Plus as separate key codes, and the old role: 'zoomIn' supplied the platform-default zoom shortcut. This means layouts or users that send the Plus accelerator for zoom-in won't invoke the new handler/HUD; the same accelerator is copied into the Windows and Linux templates as well.
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Codecov Reportβ
All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## canary #15294 +/- ##
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Coverage 71.03% 71.04%
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Files 3172 3173 +1
Lines 317486 317538 +52
Branches 27919 28844 +925
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+ Hits 225535 225587 +52
Misses 91782 91782
Partials 169 169
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# π LobeHub Release (20260528) **Release Date:** May 28, 2026 **Since v2.2.0:** 220 merged PRs Β· 15 contributors > This cycle brings heterogeneous "platform agents" you can dispatch to local or remote devices, a rebuilt onboarding flow, document-centric chat, and a unified model-runtime error model β with new DeepSeek V4 and Gemini 3.5 Flash support along the way. --- ## β¨ Highlights - **More Hetero Agents (OpenClaw / Hermes)** β Create heterogeneous agents and dispatch them to local or remote devices through the device gateway, with an execution-target switcher in the composer and persistent CLI sessions. (#15065, #15179, #15022) - **iMessage on Desktop** β New iMessage setup and bridge on desktop, plus bot attachments across every platform. (#15228, #15227, #15029) - **Skills in the Composer** β Drag skill chips into chat, trigger installed skills from the slash menu mid-line, and surface project-level skills in the homogeneous agent runtime. (#15095, #15061, #15110) - **New Models** β DeepSeek V4 Flash/Pro and Gemini 3.5 Flash across providers, with thinking params for structured output and chat cost estimates. (#15031, #15001, #15051, #14876) - **Agent Runtime Observability** β OpenTelemetry GenAI semantic conventions plus per-call generation tracing. (#15123, #15124) --- ## π€ Agents & Heterogeneous Runtime - **Platform agent creation** β OpenClaw/Hermes creation UI, device guard, and remote dispatch backend. (#15065) - **Execution-target switcher** β Pick local vs remote execution directly in the composer; device-selection UX with actionable guidance. (#15179, #15111) - **CLI hetero dispatch** β OpenClaw/Hermes dispatch with persistent sessions and a notify protocol. (#15022) - **Gateway snapshot as source of truth** β Consume the gateway `uiMessages` snapshot at step boundaries to keep chat state consistent. (#15153, #15152) - **Client sub-agent as a normal tool call** β Simplifies the sub-agent execution path. (#15281) - **Hermes agent chain** β Implements the Hermes agent chain logic. (#15189) - **Device registry** β TRPC endpoints to register, list, update, and remove devices. (#15299) - **Desktop device routing** β Route gateway agent runs through `lh hetero exec`; restore `userId` in gateway dispatch and gate local-system by execution target. (#15132, #15232) - **Agent signals** β Anchor agent-signal receipts to messages and isolate memory-agent messages into a child thread. (#14969, #14921) --- ## π Onboarding - **Simplified first screen** β Defer topic creation to first send. (#15090) - **Market Agent Picker** β Added as a classic onboarding step, with template prefetch. (#14980, #15041) - **Welcome guidance** β Show agent welcome guidance on first run. (#15098) - **Mobile** β Adapt agent onboarding UI and restore Classic-step padding on mobile. (#15019, #15032) - **Discovery** β Streamline discovery to a single profession question. (#14987) - **Analytics** β Track onboarding step events and create-agent modal source. (#15133, #15028) --- ## π Documents, Pages & Knowledge - **Thread chat in preview** β Embed thread chat in the document preview portal. (#15216) - **Non-markdown rendering** β Render non-markdown docs as a read-only highlight. (#15272) - **Multi-select** β Multi-select delete in the document tree. (#15125) - **Page-agent streaming** β Preview `initPage` streaming arguments. (#15039) - **Per-agent topics** β Per-agent topic management page. (#15207) - **Server-side category** β Derive document category server-side and drop frontend predicates. (#15076) --- ## π§© Skills & Tools - **Drag skill chips** β Drag skills into chat input and register agent-document skills. (#15095) - **Slash menu** β Installed skills appear in the slash menu with a mid-line trigger. (#15061) - **Project skills** β Recognize project-level skills in the homogeneous agent runtime and surface them regardless of active device. (#15110, #15177) - **VFS archiving** β Archive oversized tool results to VFS instead of truncating. (#15074) - **@localfile mentions** β Drag folders into chat input as `@localFile` mentions on desktop. (#15071) --- ## π§ Model Runtime & Providers - **Error spec registry** β Unify error codes into a spec + pattern registry, split `ProviderBizError` into finer codes, classify Cloud-only codes via a tier digit, and add `DatabasePersistError`. (#15262, #15286, #15278, #15279) - **New models** β DeepSeek V4 Flash/Pro (opencode-go) and Gemini 3.5 Flash; DeepSeek V4 Pro on SiliconCloud. (#15031, #15001, #15017, #15267) - **Structured output** β Thinking params for structured output, Bedrock structured generation, and DeepSeek `generateObject` tool choice. (#15051, #15174, #15054) - **Cost** β Chat cost estimate support; preserve usage cost in custom streams. (#14876, #15218) --- ## π¬ Chat & User Experience - **Follow-up chips** β Extend follow-up chip suggestions to general chat with scene-specific model config. (#15101, #14797) - **Input drafts** β Persist unsent input drafts across tab switches and prevent repeated draft restore. (#14992, #15024) - **Command menu** β Order topic/message search by recency and promote inline type filters. (#15094, #14986) - **Zoom HUD** β Show a zoom-level HUD on Cmd +/β and Cmd 0. (#15294) - **Copy** β Unescape markdown escapes when copying user messages. (#15253) --- ## π₯οΈ Desktop - **App Nap fix** β Prevent App Nap from dropping the gateway WebSocket during display sleep. (#14994) - **File preview** β Preview `.cjs`/`.mjs`/no-extension files instead of binary fallback and expand `~` when opening local files. (#15168, #15284) - **Cross-platform settings** β Open settings via main-window navigation on Windows/Linux and restore the route after an update restart. (#15036, #14922) - **Token refresh** β Prevent frequent logout from token-refresh retries. (#14928) --- ## π Observability - **OTel GenAI** β Instrument Agent Runtime with OpenTelemetry GenAI semantic conventions. (#15123) - **Generation tracing** β Per-call `llm_generation_tracing` with a pre-allocated tracingId and recordFeedback router. (#15124, #15146) - **Error classification** β Persist `ERROR_CODE_SPECS` classification on operation errors. (#15273) --- ## ποΈ Database Migrations - **Batch migrations** β Topic usage stats, push tokens, `tasks.editor_data`, and document shares. (#15280) - **Tracing & eval tables** β Add `llm_generation_tracing` and agent eval experiment tables. (#15126) > Self-hosted operators should run the database migration (`pnpm db:migrate`, or restart with auto-migrate enabled) after upgrading. The changes are additive and backwards-compatible. --- ## π Security & Reliability - **Security:** Remove the `getPlaintextCred` tool to prevent plaintext credential exposure. (#14998) - **Security:** Prompt account selection for Google OAuth and add `prompt=consent` to the OIDC authorization URL to fix missing refresh tokens. (#15234, #15010) - **Reliability:** Preserve streamed content across a mid-stream cancel. (#15173) - **Reliability:** Bound the Redis command timeout and configure the Anthropic client timeout. (#15091, #15042) - **Reliability:** Prevent infinite recursion in the assistant chain. (#15288) --- ## π₯ Contributors Huge thanks to **15 contributors** who shipped **220 merged PRs** this cycle. @AnotiaWang Β· @sxjeru Β· @algojogacor Β· @hardy-one Β· @arvinxx Β· @Innei Β· @tjx666 Β· @lijian Β· @AmAzing129 Β· @rdmclin2 Β· @neko Β· @cy948 Β· @CanisMinor Β· @sudongyuer Β· @rivertwilight Plus @lobehubbot and renovate[bot] for maintenance. --- **Full Changelog**: v2.2.0...release/weekly-20260528
π» Change Type
π Related Issue
Fixes LOBE-9764
π Description of Change
Add a transient HUD that appears in the center of the desktop window every time the user changes the zoom level via the View menu or its shortcuts (
Cmd/Ctrl + +/Cmd/Ctrl + -/Cmd/Ctrl + 0), so it's obvious what the new zoom percentage is and whether the page is back to 100%.Main process β Replace Electron's built-in
role: 'zoomIn' / 'zoomOut' / 'resetZoom'menu items with customclickhandlers (one shared helper onBaseMenuPlatform) that delegate to a newZoomService. The service:[-3, +3](~57.9 % β 172.8 %)webContents.setZoomLevelzoom:changedevent with{ level, factor }even when the level is already clamped (so the HUD still gives feedback at the edges)IPC β Introduce
ZoomBroadcastEventsin@lobechat/electron-client-ipcand wire it intoMainBroadcastEvents. No preload changes required.Renderer β New
ZoomHUDcomponent undersrc/features/Electron/system/ZoomHUD/, mounted fromsrc/routes/(main)/_layout/index.tsxbehindisDesktop. macOS-style frosted square (144Γ108,backdrop-filter: blur(28px) saturate(1.6)), 34 px tabular-num percentage, smallZoomcaption (newcommon.zoomi18n key). Auto-fades 1.5 s after the last change; rapid presses reset the timer so the HUD stays visible while the user is still tweaking.π§ͺ How to Test
Unit tests:
apps/desktop/src/main/services/__tests__/zoomSrv.test.tsβ increments / decrements / reset / clamp on both ends / destroyedwebContents/ factor formulaapps/desktop/src/main/menus/impls/{windows,linux}.test.tsβ view menu items now exposelabel+accelerator+click(previouslyrole)src/features/Electron/system/ZoomHUD/index.test.tsxβ hidden by default, shows formatted percent on event, debounces rapid events, hides after 1500 ms, rounds factorManual smoke (desktop):
bun run devCmd/Ctrl + +,Cmd/Ctrl + -,Cmd/Ctrl + 0in the main window β HUD shows120%/83%/100%etc., fades after ~1.5 s, page actually zoomsCmd/Ctrl + +repeatedly past max β HUD still flashes the current capped value so you know it didn't go furtherπΈ Screenshots / Videos
UI-only change; HUD overlays the active window with the new zoom %.
π Additional Information
Out of scope (deliberately deferred):
Ctrl + scroll) β requiressetVisualZoomLevelLimitswhich is not currently enabled in this repowebContents, so adding more windows later is mechanical