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host: tab placements skip unchanged bounds, one SetBounds per move, and follow window resizes natively

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layout.rs (headless, tested): Placements remembers each tab webview's last rectangle and
visibility, so a tabs_sync that changes nothing makes no native call and one that moves one
pane touches one webview; Frame/follow_rect estimate where panes go when the window size
changes (outer margins fixed, proportional in between, shared borders stay shared).

host.rs: place_tab/forget_tab use it; place_child is a single set_bounds (one WebView2
SetBounds instead of a move then a resize, each a page re-layout); follow_window_resizes
re-places visible tabs from the window's own Resized events on the main thread, before the
shell lays out again, and keeps WindowMetrics current so a sync needs no blocking round
trips for the window size; layout_window says when a layout was made for a stale size.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
CRTkafa 2026-09-29 03:23:44 +07:00
parent 0ad52a4ce7
commit 9313f249af
3 changed files with 327 additions and 6 deletions
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crates/waybetter-host/src/lib.rs
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@ -13,10 +13,12 @@
//! - [`hotfix`]: the signed, data-only hotfix channel.
//! - [`update`]: silent-update scheduling and the crash handshake.
//! - [`tabs`]: tab layout/state payloads, link routing and tab-chrome validation.
//! - [`layout`]: native placement bookkeeping (unchanged bounds skipped, window-resize follow).
//!
//! With the `tauri` feature, [`host`] adds the Tauri glue that does not depend on app state.
pub mod hotfix;
pub mod layout;
pub mod plugins;
pub mod policy;
pub mod profiles;