Phase A of the per-field-output-ports roadmap.
FlowRunDriver gains optional moduleInfo(capability) hook
that returns a ModuleSpec carrying declared inputs +
outputs (each ModuleField has name, type, locale->
description map). Default returns null so legacy hosts
that didn't implement the hook keep compiling — the editor
falls back to YAML-reference-derived ports.
FlowCanvas caches ModuleSpec per step capability, kicked
off lazily on each build. When the spec lands, the canvas
rebuilds with:
- Per-field input ports on the LEFT (declared input names,
in stable manifest order) — replaces the with_-keys-as-
port-labels shape.
- Per-field output ports on the RIGHT — one anchor per
declared output field. A flow like summarize that
declares response/model_endpoint/model_name/model_digest
now exposes four distinct anchors instead of fanning
every downstream reference out of one collapsed point.
- Tooltips on each port label, picked from the field's
description.<locale> with English fallback.
NodeGeometry refactored: heightFor(inputs, outputs) takes
max(inputs, outputs); outputPortY(index) for the new
multi-port output side; outputAnchorY() preserves the
legacy single-anchor fallback so edges still draw before
the spec resolves.
Edges + hit-tester now use _outputPortPosition(stepId,
fieldName: edge.fromField). Field index lookup falls
through to outputAnchorY when the spec isn't loaded yet.
Patterns: ported modern, classic, blueprint, minimal from
jai_client's CanvasPatternPainter. Dropdown now has seven
choices (dots, grid, modern, classic, blueprint, minimal,
blank).
Bumps fai_studio_flow_editor to 0.9.0.
Signed-off-by: flemming-it <sf@flemming.it>
Visual-effect knobs (FaiEditorStyle) the host can override —
distinct from ColorScheme, which stays orthogonal. Today
Studio passes it through FlowEditorPage's new style:
parameter; tomorrow a theme plugin can ship both colours and
effects in one move.
Two presets ship today: modern (frosted glass, gradient
backdrop, animated flow, shadowed nodes — the default) and
minimal (everything off, flat surfaces — accessibility /
reduce-motion / low-spec).
Properties panel rebuilt as a floating sidebar with
BackdropFilter blur when glass-style is on; falls back to
the pre-0.7 flush-divider layout under solid style.
Pattern + zoom controls promoted to PopupMenuButton dropdowns
so operators reach a specific zoom level / pattern in one
click instead of cycling.
Bumps fai_studio_flow_editor to 0.8.0.
Signed-off-by: flemming-it <sf@flemming.it>
Full rewrite of the editor surface, layered on top of the
FlowGraph foundation. One in-memory flow drives three tabs
that the operator can flip between freely:
- Graph: a drag-and-drop canvas. Nodes are step cards with
port dots on their left (one per `with:` field) and a
combined output port on the right. Pinned inputs and
outputs pseudo-nodes sit at the left and right edges so
every flow has a visually obvious source and sink. Pan +
zoom via InteractiveViewer; drag a node by its body to
reposition it (positions persisted to a sidecar JSON file
under ~/.fai/data/flows/.layout/<name>.json — kept OUT of
the YAML so `fai run` stays byte-stable).
- Text: the existing YAML CodeField with expands:true so
line 1 anchors at the top edge. YAML-aware syntax
highlighting picks up the theme's primary / secondary /
tertiary palette for keys / strings / numbers.
- Run: an inputs form (text fields + file-pick), a Start
button that calls the host's FlowRunDriver, a live step
list driven by the driver's event stream (matches the
`fai run` CLI rendering — ◻ pending, · running, ✔ done +
duration, ✗ failed, ⏸ awaiting approval), and the typed
outputs once the run resolves.
Source of truth = the YAML text. Graph edits emit fresh YAML
into the shared CodeController; text edits re-parse the
graph on a 350 ms debounce. Layout sidecar persists drag
positions only.
New public API (lib/fai_studio_flow_editor.dart):
FlowEditorPage(
initialFlowName: ...,
locale: ...,
runDriver: FlowRunDriver?, // NEW — host bridge
availableCapabilities: List<String>, // NEW — for the
// capability picker
// dialog when adding
// a step
)
The host (Studio) implements FlowRunDriver to bridge the
hub's gRPC SDK into the editor's event vocabulary. The
StepStarted/Completed/Failed/AwaitingApproval events are
shared verbatim with the CLI's run_progress renderer so
both surfaces speak the same visual language.
Files in this commit:
- lib/src/editor_controller.dart — shared state +
debounced reparse loop
- lib/src/run_driver.dart — host bridge
interface + event types
- lib/src/widgets/flow_canvas.dart — pan / zoom / drag /
port-to-port connection drawing
- lib/src/widgets/flow_node.dart — node card primitive
(module / approval / inputs / outputs variants)
- lib/src/widgets/edge_painter.dart — single CustomPainter
for every edge + draft drag line, cubic bezier with
arrow-head caps
- lib/src/widgets/properties_panel.dart — right-side editor
when a step is selected (rename id, change capability, add
/ remove / rename with-fields, delete step)
- lib/src/widgets/capability_picker.dart — searchable list
dialog used by Add-step
- lib/src/widgets/run_tab.dart — inputs form +
live step progress + outputs renderer
- lib/src/flow_editor_page.dart — host scaffolding,
toolbar, file list, three-tab body, keyboard shortcuts
- lib/src/l10n.dart — EN + DE strings for
every new label
- lib/fai_studio_flow_editor.dart — exports the new
public types (FlowRunDriver, FlowRunEvent variants,
FlowOutputValue variants)
flutter analyze: 0 issues. flutter test: 7/7 green.
Signed-off-by: flemming-it <sf@flemming.it>
Extracted from fai/studio's lib/pages/flow_editor.dart so the
editor can be swapped out independently of the host.
Public surface kept minimal — a single FlowEditorPage widget
with three named parameters (initialFlowName, locale, onRun).
The package brings its own design tokens, empty/error
widgets, l10n table; no host-internal types leak through.
Studio depends on this repo via pubspec.yaml git reference.
Forks point Studio at a different URL and rebuild.
See README.md for the swap recipe.
Signed-off-by: F∆I Platform <platform@flemming.ai>
