@tldraw/editor/dist-esm/lib/hooks/useHandleEvents.mjs.map

tldraw infinite canvas SDK (editor).

{
  "version": 3,
  "sources": ["../../../src/lib/hooks/useHandleEvents.ts"],
  "sourcesContent": ["import { TLArrowShape, TLLineShape, TLShapeId } from '@tldraw/tlschema'\nimport * as React from 'react'\nimport { Editor } from '../editor/Editor'\nimport { loopToHtmlElement, releasePointerCapture, setPointerCapture } from '../utils/dom'\nimport { getPointerInfo } from '../utils/getPointerInfo'\nimport { useEditor } from './useEditor'\n\nfunction getHandle(editor: Editor, id: TLShapeId, handleId: string) {\n\tconst shape = editor.getShape<TLArrowShape | TLLineShape>(id)!\n\tconst handles = editor.getShapeHandles(shape)!\n\treturn { shape, handle: handles.find((h) => h.id === handleId) }\n}\n\nexport function useHandleEvents(id: TLShapeId, handleId: string) {\n\tconst editor = useEditor()\n\n\treturn React.useMemo(() => {\n\t\tconst onPointerDown = (e: React.PointerEvent) => {\n\t\t\tif ((e as any).isKilled) return\n\n\t\t\t// Must set pointer capture on an HTML element!\n\t\t\tconst target = loopToHtmlElement(e.currentTarget)\n\t\t\tsetPointerCapture(target, e)\n\n\t\t\tconst { shape, handle } = getHandle(editor, id, handleId)\n\n\t\t\tif (!handle) return\n\n\t\t\teditor.dispatch({\n\t\t\t\ttype: 'pointer',\n\t\t\t\ttarget: 'handle',\n\t\t\t\thandle,\n\t\t\t\tshape,\n\t\t\t\tname: 'pointer_down',\n\t\t\t\t...getPointerInfo(e),\n\t\t\t})\n\t\t}\n\n\t\t// Track the last screen point\n\t\tlet lastX: number, lastY: number\n\n\t\tconst onPointerMove = (e: React.PointerEvent) => {\n\t\t\tif ((e as any).isKilled) return\n\t\t\tif (e.clientX === lastX && e.clientY === lastY) return\n\t\t\tlastX = e.clientX\n\t\t\tlastY = e.clientY\n\n\t\t\tconst { shape, handle } = getHandle(editor, id, handleId)\n\n\t\t\tif (!handle) return\n\n\t\t\teditor.dispatch({\n\t\t\t\ttype: 'pointer',\n\t\t\t\ttarget: 'handle',\n\t\t\t\thandle,\n\t\t\t\tshape,\n\t\t\t\tname: 'pointer_move',\n\t\t\t\t...getPointerInfo(e),\n\t\t\t})\n\t\t}\n\n\t\tconst onPointerUp = (e: React.PointerEvent) => {\n\t\t\tif ((e as any).isKilled) return\n\n\t\t\tconst target = loopToHtmlElement(e.currentTarget)\n\t\t\treleasePointerCapture(target, e)\n\n\t\t\tconst { shape, handle } = getHandle(editor, id, handleId)\n\n\t\t\tif (!handle) return\n\n\t\t\teditor.dispatch({\n\t\t\t\ttype: 'pointer',\n\t\t\t\ttarget: 'handle',\n\t\t\t\thandle,\n\t\t\t\tshape,\n\t\t\t\tname: 'pointer_up',\n\t\t\t\t...getPointerInfo(e),\n\t\t\t})\n\t\t}\n\n\t\treturn {\n\t\t\tonPointerDown,\n\t\t\tonPointerMove,\n\t\t\tonPointerUp,\n\t\t}\n\t}, [editor, id, handleId])\n}\n"],
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  "names": []
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