feat(shell): step 4-6 chrome — TS-equivalent editor UI + interactions
Step 4 (visual lift):
- Theme tokens (shadcn-dark palette) in shell-core
- Lucide-style icons via stroke_svg_path (skia parse_path::from_svg)
- Vertical Toolbar / sectioned LayerPanel (Pages + Layers) /
TopBar / floating StatusBar / floating AIChatPanel widgets
- Native + web backends: stroke_line / fill_round_rect /
stroke_round_rect / stroke_svg_path primitives
- CJK fallback typeface: cached PingFang/Noto-CJK on native via
match_family_style_character; embedded NotoSansCJK-Subset
(8.7 KB) on web alongside Roboto
Step 5 (infinite canvas + AI chat input):
- Document.viewport (pan + zoom 10–800%) with cursor-centered
zoom_at + Hand-tool drag pan + dotted background grid
- Trackpad PixelDelta → pan, LineDelta / pinch / Cmd+swipe →
zoom (winit MouseScrollDelta + PinchGesture + Modifiers)
- Document.chat (input / messages / focused / collapsed /
4-corner anchor) — WidgetHost wires apply_text /
apply_backspace / apply_send + DOM keydown listener
- AI chat panel drag → 4-corner snap via ChatAnchor::nearest
- Collapsed mode: compact pill (MessageSquare + "New Chat" +
ChevronUp), entire pill click expands
Step 6 (RightPanel + chrome polish):
- PropertyPanel rewrite: 设计/代码 tabs, 创建组件, 位置, 弹性布局,
尺寸, 图层, 填充, 描边, 效果, 导出 — file split into
property_panel.rs + property_panel_sections.rs (under 800 ea.)
- Node::aggregate_bounds for Group / unbounded containers so
the panel reports child-union W/H instead of 0×0
- TopBar PanelLeft button toggles Document.ui.sidebar_open
- Click empty canvas clears selection (collapses RightPanel)
- Native font cache (Roboto + system CJK typeface) bypasses
jian-skia textlayout: chrome paint 605 ms → sub-ms
Hit-test order = paint order reversed (chat → toolbar → layer
panel → canvas) so the topmost overlay always wins, plus
toolbar bounding-rect consumes gap clicks so they don't fall
through.
64 lib tests + 21 widgets_static green; native + web
cargo check clean. Web wasm rebuild gated on EMSDK
(tools/check-wasm-bundle.sh runs the bundle ceiling guard).
484c6032b8