# Closes#14855.
## The bug
When an `affine:embed-synced-doc` is placed on an edgeless canvas and
resized which sets `model.props.scale` to a value ≠ 1 - the
block-selection frame rendered **inside** that embedded editor is drawn
offset from the actual block boundary. The reporter hit this in Safari,
but the root cause is platform-independent.
## Root cause
`affine-embed-edgeless-synced-doc-block` applies `transform:
scale(modelScale)` to its `.affine-embed-synced-doc-container` so the
embedded editor visually fits inside its edgeless xywh
([embed-edgeless-synced-doc-block.ts#L48-L58](https://github.com/toeverything/AFFiNE/blob/canary/blocksuite/affine/blocks/embed-doc/src/embed-synced-doc-block/embed-edgeless-synced-doc-block.ts#L48-L58)).
The inner `Viewport` exposes that outer scale as `viewScale =
boundingClientRect.width / offsetWidth`.
PR #14015 and PR #14074 already taught the surface canvas and
`GfxBlockComponent.getCSSTransform` to compensate by dividing by
`viewScale`. But several selection-related overlays that render inside
the same scaled container were **not** updated in those PRs. They
either:
- read `viewport.toViewCoord(x, y)` - which returns `(x - viewportX) *
zoom * viewScale` and drop the result into CSS `left` / `top` inside the
scaled container, or
- hand-build a `translate(translateX, translateY) scale(zoom)` transform
without `viewScale` compensation.
The outer CSS `scale(viewScale)` then re-applies the scale, leaving the
overlays one factor of `viewScale` away from their blocks. That's
exactly the misalignment in the screenshot - the rect's size looks right
but its position is offset.
## The fix
Mirror the pattern shipped in #14074 everywhere the inner overlays are
placed:
- position: `(model - viewportX) * zoom / viewScale`
- transform scale: `zoom / viewScale`
- translate: `translateX / viewScale, translateY / viewScale`
This keeps the overlays in the same reference frame as
`GfxBlockComponent.getCSSTransform` so they line up with the block
they're framing. When `viewScale === 1` (normal edgeless canvas, outside
any embed) every `/ viewScale` is a no-op and behaviour is unchanged.
## Why this is safe
- When `viewScale === 1` - every existing caller outside
`embed-edgeless-synced-doc` - the math reduces to the original
expression byte-for-byte.
- The fix strictly mirrors the invariant already adopted by
`GfxBlockComponent.getCSSTransform` in #14074. It's the same division by
`viewScale` applied in the same place.
- No public API, type, or DOM structure changed.
## Scope / known limitations
- The `Viewport._cachedBoundingClientRect` cache is only invalidated by
its own `ResizeObserver`
([viewport.ts#L500-L505](https://github.com/toeverything/AFFiNE/blob/canary/blocksuite/framework/std/src/gfx/viewport.ts#L500-L505)).
A CSS-transform change on an ancestor (e.g. the user panning/zooming the
outer edgeless canvas) does not fire it, so in theory `viewScale` can go
stale between outer-viewport updates. In practice this hasn't come up in
repro - the inner viewport's shell is observed and fires whenever layout
shifts. If it turns out to matter I'm happy to add a
`viewport.onResize()` refresh hook off the existing
`GfxViewportInitializer` in a follow-up.
- No integration test added - the existing
`blocksuite/integration-test/edgeless/` suite has no `embed-synced-doc`
harness. Adding one is a larger scope; can follow up if requested.
## Test plan
- [x] `yarn typecheck` - passes
- [x] `yarn lint:ox` - `0 warnings, 0 errors`
- [x] `yarn prettier --write` on the 5 touched files - no changes
- [ ] Manual: on canary, create an edgeless canvas, drop an
embed-synced-doc, resize with `Shift` held so `model.props.scale` ≠ 1,
select any block inside, and verify the blue selection frame sits flush
with the block's boundary (confirm on Safari, Chrome, Firefox).
- [ ] Regression check: on a normal edgeless canvas (no embed), verify
element selection, drag handle, and text/shape inline editors still
render correctly (these code paths hit `viewScale === 1` and should be
unchanged).
## Related PRs
- #14015 - fixed surface canvas at non-1 `viewScale`.
- #14074 - fixed `GfxBlockComponent.getCSSTransform` at non-1
`viewScale`. This PR completes that series by covering the selection
overlays.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Fixed positioning and scaling of inline text editors, selection
rectangles, drag handles, and remote cursors so overlays and editors
remain correctly aligned and sized when the viewport uses an additional
outer scale/transform during zooming and panning.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Refactor**
- Unified internal data access by replacing all references from `doc` to `store` across all components, blocks, widgets, and utilities. This affects how readonly state, block operations, and service retrieval are handled throughout the application.
- **Tests**
- Updated all test utilities and test cases to use `store` instead of `doc` for document-related operations.
- **Chores**
- Updated context providers and property names to reflect the change from `doc` to `store` for improved consistency and maintainability.
No user-facing features or behaviors have changed.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Closes: BS-3226
Closes: BS-3227
Closes: BS-3228
Closes: BS-3229
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced new view extensions for remote selection, scroll anchoring, slash menu, and toolbar widgets, enhancing customization and integration capabilities.
- **Refactor**
- Updated export paths and module structure for widget-related packages to improve modularity and accessibility.
- Reorganized internal dependencies and removed redundant widget imports from core block packages.
- Refactored edgeless-related widgets and components to use a standardized scope interface for improved context and state management.
- Centralized graphics controller access and slot management through standardized context objects.
- **Chores**
- Added and updated dependencies to streamline extension loading and workspace management.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Adarsh Singh
