### Virtual helper "slots"
Adds a virtual input and output slot to native reroutes, allowing links
to be dragged from them to other reroutes or nodes.
https://github.com/user-attachments/assets/67d308c4-4732-4b04-a2b9-0a2b0c79b413
### Notes
- Reroute slots automatically show an outline as the pointer gets close
- When the slot is clickable, it will highlight in the same colour as
the reroute
- Enables opposite direction connecting: from reroute to node outputs
- Floating reroutes only show one slot - to whichever side is not
connected
Allows globally setting the bezier control point offset from the reroute
centre point. This can be increased to allow larger curves on longer
links, or set to 0 to completely disable the spline on inter-reroute
link segments.
- Splits link connect logic out of `LinkConnector` to individual
`RenderLink` classes
- Add support for connecting / reconnecting reroutes in various
configurations
- Adds support for moving existing floating links from outputs / inputs
- Fixes numerous corruption issues when reconnecting reroutes / moving
links
- Tests in separate PR #816
Resolves several issues with floating links. Highlights:
- Caches floating links on slots, removing some loop checks (inefficient
/ does not scale)
- Simpler APIs
- Adds `Reroute.totalLinks` (regular and floating
### Reroute snap highlight
When connecting links, a simple border now helps to indicate that a
connecting link can be dropped on a reroute below the pointer.
### Reroute ID badges
Optionally, intended for debugging purposes, drawing of ID badges can
also be manually enabled via console.
- Fixes TS types
- Various bug fixes for reroute / link (re)connect
- Adds reroute snap circle when connecting links
- Validates reroutes on drop (part of larger work)
- Prevent nodes linking to themselves
### Floating reroutes
Native reroutes can now be kept in a disconnected state.
Link chains may be kept provided they are connected to _either_ an input
or an output. By design, reroutes will be automatically removed if both
sides are disconnected.
- Fixes root cause of minor in-memory-only corruption when deleting
reroutes from output slots
- Already automatically corrected via serialisation
- If `reroutes` or `links` are empty arrays, removes them from newer
object-based serialised output entirely
- Minor refactors
- Removes unused code
- Fixes some serialisation types
- Adds `ReadonlyLinkNetwork` interface
### LinkConnector
Replaces the minimal-change effort of `connecting_links` with a more
reliable implementation.
- Subscribable, event-based API
- Uses browser-standard `e.preventDefault()` to cancel `before-*` events
- Uses standard `state` POJO - can be proxied without issue
- Structures code and separates concerns out of `LGraphCanvas`
- Link creation calls can now be made from anywhere, without the need
for a rewrite
- New canvas sub-components now live in `src/canvas/`
### Rendering
- Skips link segments by setting a `_dragging` bool flag on the LLink or
Reroute
- Moves some previously nested code to event listeners, configured in
the `LGraphCanvas` constructor
### Deprecation
`LGraphCanvas.connecting_links` is now deprecated and will later be
removed.
Until it is removed, to prevent breaking extensions it will continue to
be set and cleared by a legacy callback. The contents of this property
are ignored; code search revealed no exentsions actually modifying the
array.
- Prefer comments above lines over end-of-line comments
- Makes auto-formatting easier
- Subjective, but it is generally easier to read in JS
- Standardises JSdoc format
- Auto-fixes for many issues (applies on save w/ESLint extension)
* Implement snap to grid
- Moves positioning logic to LGraph
- Simplifies code
- Adds Pointer API to alt-clone node
- Removes always_round_positions, replaced by always snap to grid (default size is 1 when always snapping)
Fix refator error
* Fix group items snapped without group
* Allow snapping of all items
- Add snapToGrid to Positionable
- Impl. on all types
- Deprecated: alignToGrid is now a wrapper
* Fix test import alias, update expectations
* Prevent desync of before / after change events
Adds ability to perform late binding of finally() during drag start.
* nit - Refactor
* Fix unwanted snap on node/group add
* nit - Doc
* Add shift key state tracking for snap to grid
Private impl., no state API as yet.
* Add snap guides rendering
Nodes, reroutes
* Optimisation - reroute rendering
Fixes exponential redraw
* Add snap guidelines for groups
* Add Reroute
- Initial Reroute implementation
- LLink and Reroute both implement the new LinkSegment interface
- LinkSegments can have a parentId, which always points to a Reroute
* Narrow TS type of schema v0.4 extras
* Add reroutes to schema 0.4
Use extras.reroutes to store additional data
* Add Reroute POC to LLink
* Add Reroute rendering
* Add Reroute context menu - Delete Reroute
* Update delete selected - include reroutes & groups
* Add Reroute select & move
* Include reroutes in area-select
* Move disconnect link logic to LLink
* Add Reroute connect
* nit
* Add Reroute support - connecting links
* Add Add Reroute from link menu (menu)
* nit
* Add shift-drag from reroute to add new link
* Prevent Reroutes from disappearing
Add keepReroutes option to prevent Reroute GC
* Add fourth param to connectInputToOutput
* Allow both connecting in/out to be null
* Move ConnectingLink start pos to Reroute
* Add link render options
* Refactor renderLink - spline / bezier
* Refactor renderLink - linear, straight
* Fix centre points on all link types
Improves link render time
* [Refactor] Generic recursive interface / flat set
* nit
* Allow Reroutes to be members of groups
* Start links from the closest reroute
For the "shift-click drag link from link" feature
* Add Reroutes using alt-click on link paths
* nit - Refactor
* nit - Refactor
* Fix reroute deselect UX
Temporary workaround
* Add Reroute link centre-marker handling
* Add optional link arrow markers
Add enum for link markers
-> Pointing the way forward ->
Set default centre marker to arrow
* Add module export: LinkMarkerShape
* Add link arrow direction for all link types
* Add Reroute auto-swivel with custom curves
* Add state switch to disable reroutes
Works at root of all canvas interactions, should leave existing reroutes untouched but invisible until e.g. links are edited / changed.
* Fix cannot deselect when reroutes disabled
* Include reroutes in select-all
