Files
next-ai-draw-io/components/canvas/selection-ask.tsx
T
dayuan.jiang 899b6a3b5b refactor(canvas): decouple the canvas from the chat engine
The canvas components will be reused by the MCP server's browser shell,
which has no chat and no Next.js. They now read everything they need
from small contexts and the canvas store instead of the chat engine:

- components/canvas/versions-context.tsx: VersionsProvider and
  useVersionsContext give the version cards, the strip and the compare
  dialog a VersionsSource (versions, onCanvasId, undoneId, isBusy,
  canUndo, canRedo, restore, undo, redo). The chat fills it from the
  versions store and the engine in components/chat/chat-versions.tsx.
- stores/canvas-store.ts: isBusy and busyReason; the chat engine sets
  them while a turn runs, SelectionAsk and the version UI read them.
- components/canvas/version-card.tsx: the visual version card and the
  thumbnail, out of tool-activity.tsx; the chat's card composes it and
  adds its "Show XML" link and code panel.
- compare-dialog.tsx and version-strip.tsx move to components/canvas;
  the strip takes the minimum number of versions to show as a prop, the
  chat panel computes it from the cards it has.
- components/canvas/locale-context.tsx: LocaleProvider and useLocale,
  fed by the [lang] layout; CanvasStage no longer uses next/navigation.
  The overlay (SelectionAsk) is a slot and the wait for the saved
  language is a prop, so the shell can leave both out.
- lib/version-text.ts: describeChanges is now describeChangeSummary, so
  it can be imported next to the MCP core's describeChanges.
2026-10-11 20:56:07 +09:00

72 lines
2.3 KiB
TypeScript

import { Sparkles } from "lucide-react"
import { useDictionary } from "@/hooks/use-dictionary"
import { modKey } from "@/lib/platform"
import { useCanvasStore } from "@/stores/canvas-store"
import { useUiStore } from "@/stores/ui-store"
const BUTTON_HEIGHT = 32
const GAP = 10
/**
* "Ask AI to change this" next to the selected shapes. Clicking it moves
* focus to the chat input, where the selection already shows as a chip.
* Hidden while an answer is changing the canvas.
*/
export function SelectionAsk({
width,
height,
}: {
/** Size of the canvas area, for keeping the button inside it */
width: number
height: number
}) {
const dict = useDictionary()
const rect = useCanvasStore((s) => s.selectionRect)
const selection = useCanvasStore((s) => s.selection)
const isFreehand = useCanvasStore((s) => s.isFreehand)
const popupOpen = useCanvasStore((s) => s.isDrawioPopupOpen)
const isBusy = useCanvasStore((s) => s.isBusy)
const focusComposer = useUiStore((s) => s.focusComposer)
if (isBusy || popupOpen || !rect || selection.length === 0 || isFreehand) {
return null
}
// Selection scrolled out of view
if (
rect.x + rect.width < 0 ||
rect.y + rect.height < 0 ||
rect.x > width ||
rect.y > height
) {
return null
}
// Above the selection's top-right corner, kept inside the canvas
const approxWidth = 168
const left = Math.min(
Math.max(8, rect.x + rect.width - approxWidth / 2),
width - approxWidth - 8,
)
const above = rect.y - BUTTON_HEIGHT - GAP
const top =
above > 64
? above
: Math.min(rect.y + rect.height + GAP, height - BUTTON_HEIGHT - 72)
return (
<button
type="button"
onClick={focusComposer}
className="pointer-events-auto absolute z-10 flex h-8 items-center gap-1.5 rounded-xl bg-card pr-2.5 pl-2 text-[13px] font-medium text-foreground shadow-pop transition-transform animate-fade-in hover:-translate-y-px"
style={{ left, top }}
data-testid="selection-ask"
>
<Sparkles className="size-4 text-marker-ink" />
{dict.workspace.askAi}
<kbd className="ml-1 font-sans text-[11px] text-muted-foreground">
{modKey}/
</kbd>
</button>
)
}