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Safe mode: one run with only the shell working (the app menu, --safe-mode, Shift at launch on Windows)

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Host: `safe.rs` is a flag in this process's memory, never written to disk, so the next normal start is back to the owner's setup. While it is on a site tab gets the tab bridge and nothing of the app's page layers: its document-start scripts are `SiteHooks::safe_init_scripts` (default: the bridge alone) instead of `init_scripts`; `site_page_loaded`, `tab_placed` and `tab_background` are not called; `page_scripts` is empty; `eval_in_site_tabs` does nothing. So no page runtime, plugins, theme, custom CSS, feature flags, fixes, hotfix data or words reach a page: the site runs as in a browser, and only the shell is the app's. It starts from the launch argument `--safe-mode` (for when the interface itself is broken), from Shift held while the app starts (Windows), or from the shell: `safe_mode_get` / `safe_mode_set {on}` (shell-only), where a switch rebuilds every tab webview (profiles marked stale, `tabs-rebuild` asks the shell for its layout) so document-start scripts change too. Tests: the argument, the flag, and that app.rs and host.rs gate every layer.

Frame: the app menu's "Restart in safe mode…" says what it does before anything reloads; while on, the titlebar shows an amber "Safe mode | Leave" chip (one click leaves) and the row reads "Leave safe mode"; the chrome drops its theme (and pane themes) and takes it back on leaving, without touching the first-frame cache. `features.safeMode` (on by default).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
CRTkafa 2026-09-30 23:13:03 +07:00
parent d24b1d2234
commit ca46210e53
19 changed files with 342 additions and 20 deletions
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2
crates/waybetter-host/src/lib.rs
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@ -30,6 +30,7 @@
//! feature flags, as validated data and the scripts that hand them to site tabs.
//! - [`modes`]: the onboarding mode the owner started from (the presets are the app's feature table).
//! - [`zoom`]: page zoom per tab (a clamped factor the shell sets, remembered in `zoom.json`).
//! - [`safe`]: safe mode for one run (a flag in memory: site tabs get the tab bridge and nothing else).
//! - [`find`]: find in page (the request the shell sends, the fallback script; the query is kept nowhere).
//! - [`alerts`]: local keyword alerts (keywords, snippets, per-item/per-keyword rate limits).
//! - [`media`]: gallery folders (path containment) and the opt-in clipboard history (private copies skipped).
@ -65,6 +66,7 @@ pub mod modes;
pub mod plugins;
pub mod policy;
pub mod profiles;
pub mod safe;
pub mod settings;
pub mod site;
pub mod store;