theseus/downloads-preload.js
Local Dev c2ba26877f Theseus: download tracker, search split, discover-more tier, UX polish
Bundle of UX + feature work. Split from packaging by intent so the diff
is reviewable; the next Theseus rebuild ships it.

Features
- Download tracker (new): session.on("will-download") → per-item state
  {id, filename, url, mime, total, received, state, savePath, startedAt}
  with updated/done event handlers. New downloadsPop WebContentsView
  loads downloads.html (new file) + downloads-preload.js (new file);
  panel positioned under a new #downloads toolbar button between search
  and Tor. Full IPC: downloads-get, toggle/close/resize-downloads,
  download-open/show/cancel/clear, downloads-clear-all. In-memory only —
  cross-session persistence is a future addition. Button badge shows
  active count + spin/done/err color.

- Search engines split by kind + tier:
  * kind: "search" | "llm" — separate headers in picker + settings
    ("Search with" / "Ask an AI"). Empty sections hidden.
  * tier: "catalog" | "extra" — Settings now has THREE panes behind the
    "+ Add search engine" button: curated catalog, wider discoverable
    bank filtered by a live search input, custom URL form.
  * DEFAULT_ENABLED unchanged (5 major engines).
  * Custom user-added engines carry tier="custom" (never in catalog/extra
    panes).

- 9 tier="extra" engines added (all non-login ?q=): Marginalia, Stract,
  Yep, Presearch, MetaGer, Qwant, Swisscows, Naver, Baidu. Same rot rule
  as LLMs: if one starts bouncing to a login gate, drop it.

Bug fixes
- Loadbar collapses to 0px when idle (was reserving a permanent 2px
  strip below the address bar). .loadbar {height:0} + .loadbar.on
  {height:2px} + 120ms transition.
- Native <select> popup theme sync via :root { color-scheme: dark } +
  @media(prefers-color-scheme: light). nativeTheme.themeSource already
  drives prefers-color-scheme, so the OS popup color follows the app
  theme automatically (fixed light popup on dark app / vice versa).
- .ctl layout flipped to flex-direction: row with flex-wrap so
  anti-fingerprint mode + value fields fit side-by-side.

Settings restructure
- General section: Startup group at the top ("Open previous windows and
  tabs" toggle), then Appearance below with three visual THEME CARDS
  (System / Light / Dark) — small mock-browser previews per theme,
  Firefox-style, active card gets a blue ring. System pipes through to
  nativeTheme.themeSource = "system".
- Search promoted to a top-level sidebar item between General and
  Naming. Search-engine controls moved out of General into Search.
- Search section: enabled list shows only enabled engines, grouped by
  kind, drag-reorder within a kind. "+ Add search engine" opens the
  catalog/extras/custom-URL panel.

Search engine catalog trims (already flagged in prior work)
- Removed ChatGPT / Claude / You.com (login-gated ?q=).
- Removed SearXNG (federated; every single-instance default rots).

Docs
- TheseusNavigator/PENDING.md and GOTCHAS.md born with this work
  (see the HANDOFF.md commit for the convention).
- PENDING.md's own "session: 2026-08-02:theseus-ux-polish" group will be
  emptied after this ship lands.

Preview harness
- _preview.html + _settings-preview.html stubs updated with kind + tier
  + downloads seed + tier="extra" samples so the preview reflects reality.
  Both files are gitignored — local only.

Coordination
- Parallel session's collision-policy work (chrome.html registry chips,
  popover switcher, Naming section, in-tab collision prompt) already
  landed in commits 256079d/42b340f/b0d6375/78dddda. This commit adds
  cleanly on top.
2026-08-02 15:31:47 +02:00

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JavaScript

const { contextBridge, ipcRenderer } = require("electron");
contextBridge.exposeInMainWorld("dl", {
onDownloads: (cb) => ipcRenderer.on("downloads", (_e, d) => cb(d)),
close: () => ipcRenderer.invoke("close-downloads"),
resize: (h) => ipcRenderer.invoke("downloads-resize", h),
open: (id) => ipcRenderer.invoke("download-open", id),
show: (id) => ipcRenderer.invoke("download-show", id),
cancel: (id) => ipcRenderer.invoke("download-cancel", id),
clear: (id) => ipcRenderer.invoke("download-clear", id),
clearAll: () => ipcRenderer.invoke("downloads-clear-all"),
});