Round 12 painted the inner highlight ring through an absolutely
positioned overlay that covered every glass panel. User reports the
right pane was unclickable, the search bar wouldn't take input, and
sidebar tab close buttons never appeared on hover. Even though the
overlay div had no listeners, in this layout it was racing the
parent's hit-test for the same pixels — the close glyph in
`render_launcher_row` is `opacity(0)` until `group_hover` fires, and
the overlay was preventing that hover from registering.
Move the highlight onto each panel's own `.border_1()` so the ring is
part of the panel paint, not a separate overlay. Painted, never
hit-tested. The four wired callers (expanded sidebar, compact
sidebar, main pane, command overlay panel) now each carry their
inner border directly. `chrome::glass` deletes; nothing else used it.
The 1 px brighter top-edge specular sliver from the design is gone —
GPUI 0.2.2 has no asymmetric border colors and live clicks beat that
single-pixel polish.
cargo test --workspace: 440 passed, 0 failed.
Closes the three "platform-impossible" gaps from the design audit
without resorting to hacks or shaders.
* chrome::glass — `render_inner_highlight(radius)` paints the design's
`box-shadow: inset 0 0 0 1px` ring as an absolute overlay div with a
1 px top-edge highlight sliver. GPUI 0.2.2's BoxShadow has no inset
flag, so the composite is the only way to keep the panel content
unclipped while the ring rides on top.
* chrome::animations — `blink` and `fade_in` wrap GPUI's first-class
`with_animation` driver. Square-wave caret in the command header,
180 ms opacity ramp on the command backdrop and workspace
disclosure list.
* chrome::sidebar — panel_bg now tints toward the active wallpaper
theme so the wallpaper bleeds through every glass surface, the
closest honest substitute for backdrop-filter without a shader pass.
* command_overlay split: row helpers move to chrome::command_rows so
command_overlay drops from 504 → 232 lines, well under the 500-line
ceiling. No behavior change.
cargo test --workspace: 440 passed, 0 failed.
Domain ships HIDDEN_SIDEBAR_WIDTH_PX = 8 alongside the existing
collapsed/default tiers. ElyShell tracks sidebar_hover_expanded with
expand_hidden_sidebar / collapse_hidden_sidebar helpers; switching
back to a non-hidden width via the layout cards or core API resets
the flag automatically so the sidebar can never be both hidden and
expanded after a mode change.
Renderer:
- render_sidebar takes a sidebar_hidden flag and routes to a thin
8 px clickable rail (hover bg + click expands) when the active
space's width is at HIDDEN.
- While the rail is expanded, render_browser overlays a transparent
backdrop + the full default-width sidebar absolutely positioned in
the shell inset, so the main pane content never reflows.
- collapsed_sidebar_active still drives the COLLAPSED-tier compact
sidebar; the hidden tier is opted out of that path.
Appearance form:
- Layout cards section gains the design's third "Hidden on hover"
card with a 6 px sliver preview that mutates the active space to
HIDDEN_SIDEBAR_WIDTH_PX. LayoutMode now derives id/width/preview
from a small enum so adding a fourth mode would be one match arm.
The hover-expanded state never persists into the domain; once the
user switches modes or clicks the backdrop, it collapses cleanly.
Domain:
- AppearanceSettings gains translucency_pct (u8, 0..=100, default 40)
with a clamping setter and serde round-trip coverage.
- DEFAULT_TRANSLUCENCY_PCT and MAX_TRANSLUCENCY_PCT exported for the
shell.
Core:
- BrowserCore::set_translucency_pct delegates to the appearance struct;
the existing reset_appearance covers the reset path.
- Integration test covers persistence into snapshot.appearance.
Render:
- chrome::sidebar::panel_bg(snapshot) replaces the static PANEL_BG
constant, mapping the user's translucency_pct linearly into the alpha
byte 0xff..0xb3. Sidebar (expanded + compact) and main pane consume
the helper so changing the setting at runtime updates every glass
surface in lock-step.
Form:
- Translucency row in chrome::appearance_form mirrors the design's
static track + thumb visual driven by the persisted percentage, plus
three preset chips (Solid 0 / Default 40 / Glassy 75) that mutate the
setting through shell.set_translucency_pct.
Strict UX rule preserved: alpha never drops below 0xb3 so panels stay
readable without backdrop blur (which GPUI 0.2.2 doesn't expose).
Below the appearance rows the Appearance form now exposes the design's
"Sidebar / Layout" section: serif "Layout" sub-headline plus a 2-up
preview-card grid wired to the active space's sidebar_width — Single
column lands on DEFAULT_SIDEBAR_WIDTH_PX, Compact lands on
COLLAPSED_SIDEBAR_WIDTH_PX. Each card draws a miniature sidebar +
canvas preview so the choice reads at a glance.
The shell exposes a new set_active_sidebar_width helper alongside the
existing toggle so the cards mutate state without re-implementing the
toggle logic. The "Hidden on hover" preset from the design is omitted
until that mode actually ships — no placeholder option.
The cards live in chrome::appearance_layout_cards so appearance_form
stays under 500 lines.
The flat white background is the root visual difference from the
design reference. Replace it with a warm-to-cool diagonal linear
gradient (pink-beige to lavender-blue). Add BoxShadow to both
sidebar and main pane panels for floating depth. Use warmer panel
background (88% white) instead of 62% transparent. Add soft shadows
to active nav items and workspace tiles. Avatar uses gradient
matching the design reference.
ZacharyZhang-NY