[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_110":111,"_112":113},"routes/embed.x.$handle.$name.$",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":20,"_21":-5},"handle","khxu","name","presentation-survey","path","frontend/components/MatrixCellReferences.tsx","project",{"_22":49,"_11":12,"_35":50,"_51":-5,"_52":44,"_53":54,"_55":54,"_56":57,"_58":-5,"_59":60,"_61":62,"_63":34,"_64":-5,"_65":-5,"_66":67,"_68":69,"_70":71,"_72":73,"_74":75,"_76":-5,"_77":78,"_79":78,"_80":81,"_82":81,"_83":81,"_84":78,"_85":78,"_86":87,"_88":89,"_90":91,"_92":44},"file",{"_22":23,"_11":24,"_25":26,"_27":28,"_29":30,"_31":32,"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":-5,"_13":46},"permalink","https://www.val.town/x/khxu/presentation-survey/code/frontend/components/MatrixCellReferences.tsx","extension","id","63280434-6a09-4b36-8a00-ea7e8deb1fc1","MatrixCellReferences.tsx","fileId","e92bc1d4-ab47-11f1-baa4-1607ee4eb77e","parentId","01a0700e-6ffa-7369-be27-f793e05c4b8c","branchId","00e09eca-4d1b-4e02-b98f-8565c54b4542","branchVersion",142,"latest",true,"createdAt",["D",1788849922050],"version",4,"fileType","script","content","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useRef, useState } from \"https://esm.sh/react@18.2.0\";\nimport type {\n KeyboardEvent,\n MouseEvent,\n PointerEvent,\n} from \"https://esm.sh/react@18.2.0\";\nimport type { MatrixReference, MatrixSize } from \"../../shared/types.ts\";\nimport {\n clampMatrixReferencePosition,\n MATRIX_REFERENCE_POSITION_MAX,\n MATRIX_REFERENCE_POSITION_MIN,\n matrixReferenceDefaultPositions,\n} from \"../../shared/questions.ts\";\n\nconst MARKER_COLORS = [\n \"#dc2626\",\n \"#2563eb\",\n \"#16a34a\",\n \"#9333ea\",\n \"#ea580c\",\n \"#0891b2\",\n \"#c026d3\",\n \"#4f46e5\",\n \"#65a30d\",\n \"#be123c\",\n] as const;\n\nconst MARKER_SHAPES = [\n \"circle\",\n \"square\",\n \"diamond\",\n \"triangle-up\",\n \"triangle-down\",\n \"hexagon\",\n \"star\",\n \"plus\",\n \"cross\",\n \"capsule\",\n] as const;\n\nexport interface MatrixReferenceMarkerStyle {\n color: string;\n shape: typeof MARKER_SHAPES[number];\n key: string;\n}\n\nexport function matrixReferenceMarkerStyle(\n index: number,\n): MatrixReferenceMarkerStyle {\n const normalized = Math.max(0, Math.floor(index));\n const shapeIndex = normalized % MARKER_SHAPES.length;\n const colorIndex = (normalized * 3 + Math.floor(normalized / 10)) %\n MARKER_COLORS.length;\n return {\n color: MARKER_COLORS[colorIndex],\n shape: MARKER_SHAPES[shapeIndex],\n key: `${MARKER_SHAPES[shapeIndex]}-${MARKER_COLORS[colorIndex]}`,\n };\n}\n\nexport function MatrixReferenceMarker(\n { index, className = \"h-4 w-4\" }: {\n index: number;\n className?: string;\n },\n) {\n const marker = matrixReferenceMarkerStyle(index);\n return (\n \n \n \n \n );\n}\n\nfunction MarkerShape({ marker }: { marker: MatrixReferenceMarkerStyle }) {\n const common = {\n fill: marker.color,\n stroke: \"#111827\",\n strokeWidth: 1.25,\n strokeLinejoin: \"round\" as const,\n };\n switch (marker.shape) {\n case \"circle\":\n return ;\n case \"square\":\n return ;\n case \"diamond\":\n return ;\n case \"triangle-up\":\n return ;\n case \"triangle-down\":\n return ;\n case \"hexagon\":\n return ;\n case \"star\":\n return (\n \n );\n case \"plus\":\n return (\n \n );\n case \"cross\":\n return (\n \n );\n case \"capsule\":\n return ;\n }\n}\n\nexport function MatrixCellMarkers(\n { references, cellReferences, size, className = \"\" }: {\n references: MatrixReference[];\n cellReferences: MatrixReference[];\n size: MatrixSize;\n className?: string;\n },\n) {\n const referenceIndexes = new Map(\n references.map((reference, index) => [reference.id, index]),\n );\n const visibleReferences = cellReferences.filter((reference) =>\n reference.label.trim()\n );\n const limit = matrixCellMarkerLimit(size);\n const hiddenCount = Math.max(0, visibleReferences.length - limit);\n if (visibleReferences.length === 0) return null;\n\n const markerSize = \"h-5 w-5 sm:h-6 sm:w-6\";\n\n return (\n \n {visibleReferences.slice(0, limit).map((reference) => (\n \n ))}\n {hiddenCount > 0 && (\n \n +{hiddenCount}\n \n )}\n \n );\n}\n\nexport function MatrixCellAnnotations(\n {\n references,\n cellReferences,\n size: _size,\n editable = false,\n onPositionChange,\n className = \"\",\n }: {\n references: MatrixReference[];\n cellReferences: MatrixReference[];\n size: MatrixSize;\n editable?: boolean;\n onPositionChange?: (\n id: string,\n target: MatrixReferencePositionTarget,\n x: number,\n y: number,\n ) => void;\n className?: string;\n },\n) {\n const referenceIndexes = new Map(\n references.map((reference, index) => [reference.id, index]),\n );\n const visibleReferences = cellReferences.filter((reference) =>\n reference.label.trim()\n );\n if (visibleReferences.length === 0) return null;\n\n return (\n \n {visibleReferences.map((reference, indexInCell) => (\n \n ))}\n \n );\n}\n\nexport type MatrixReferencePositionTarget = \"symbol\" | \"label\";\n\nfunction MatrixReferenceAnnotation(\n {\n reference,\n index,\n indexInCell,\n editable,\n onPositionChange,\n }: {\n reference: MatrixReference;\n index: number;\n indexInCell: number;\n editable: boolean;\n onPositionChange?: (\n id: string,\n target: MatrixReferencePositionTarget,\n x: number,\n y: number,\n ) => void;\n },\n) {\n const fallback = matrixReferenceDefaultPositions(indexInCell);\n const symbolX = reference.symbolX ?? fallback.symbolX;\n const symbolY = reference.symbolY ?? fallback.symbolY;\n const labelX = reference.labelX ?? fallback.labelX;\n const labelY = reference.labelY ?? fallback.labelY;\n const labelRef = useRef(null);\n const [labelBounds, setLabelBounds] = useState({\n cellWidth: 0,\n cellHeight: 0,\n labelWidth: 0,\n labelHeight: 0,\n });\n\n useEffect(() => {\n const label = labelRef.current;\n const cell = label?.parentElement;\n if (!label || !cell) return;\n const measure = () => {\n const cellRect = cell.getBoundingClientRect();\n const labelRect = label.getBoundingClientRect();\n setLabelBounds({\n cellWidth: cellRect.width,\n cellHeight: cellRect.height,\n labelWidth: labelRect.width,\n labelHeight: labelRect.height,\n });\n };\n measure();\n const observer = typeof ResizeObserver === \"undefined\"\n ? null\n : new ResizeObserver(measure);\n observer?.observe(cell);\n observer?.observe(label);\n return () => observer?.disconnect();\n }, [reference.label]);\n\n const visibleLabelPosition = clampMatrixLabelPosition(\n labelX,\n labelY,\n labelBounds,\n );\n const connector = matrixReferenceConnectorPoints(\n symbolX,\n symbolY,\n visibleLabelPosition.x,\n visibleLabelPosition.y,\n );\n const commonTitle = \"drag or use arrow keys to reposition\";\n\n return (\n <>\n \n \n \n {editable\n ? (\n <>\n \n \n \n {\n labelRef.current = element;\n }}\n title={`Comparison label for ${reference.label} — ${commonTitle}`}\n aria-label={`Position comparison label for ${reference.label}`}\n className=\"pointer-events-auto absolute max-w-[88%] touch-none select-none rounded-md border border-gray-300 bg-white/95 px-1.5 py-1 text-center text-[10px] font-semibold leading-tight text-gray-900 shadow-sm cursor-move break-words sm:text-xs focus:outline-none focus:ring-2 focus:ring-indigo-600\"\n style={matrixReferencePositionStyle(\n visibleLabelPosition.x,\n visibleLabelPosition.y,\n )}\n {...positionControlProps(\n reference.id,\n \"label\",\n visibleLabelPosition.x,\n visibleLabelPosition.y,\n onPositionChange,\n )}\n >\n {reference.label}\n \n \n )\n : (\n <>\n \n \n \n {\n labelRef.current = element;\n }}\n title={reference.label}\n className=\"absolute max-w-[88%] rounded-md border border-gray-300 bg-white/95 px-1.5 py-1 text-center text-[10px] font-semibold leading-tight text-gray-900 shadow-sm break-words sm:text-xs\"\n style={matrixReferencePositionStyle(\n visibleLabelPosition.x,\n visibleLabelPosition.y,\n )}\n >\n {reference.label}\n \n \n )}\n \n );\n}\n\nfunction positionControlProps(\n id: string,\n target: MatrixReferencePositionTarget,\n x: number,\n y: number,\n onPositionChange?: (\n id: string,\n target: MatrixReferencePositionTarget,\n x: number,\n y: number,\n ) => void,\n) {\n return {\n onClick: (event: MouseEvent) => event.stopPropagation(),\n onPointerDown: (event: PointerEvent) => {\n event.stopPropagation();\n event.currentTarget.setPointerCapture(event.pointerId);\n },\n onPointerMove: (event: PointerEvent) => {\n if (\n !onPositionChange ||\n !event.currentTarget.hasPointerCapture(event.pointerId)\n ) {\n return;\n }\n const cell = event.currentTarget.parentElement;\n if (!cell) return;\n const cellBounds = cell.getBoundingClientRect();\n if (!cellBounds.width || !cellBounds.height) return;\n const nextX = (event.clientX - cellBounds.left) / cellBounds.width;\n const nextY = (event.clientY - cellBounds.top) / cellBounds.height;\n const next = target === \"label\"\n ? clampMatrixLabelPosition(nextX, nextY, {\n cellWidth: cellBounds.width,\n cellHeight: cellBounds.height,\n labelWidth: event.currentTarget.offsetWidth,\n labelHeight: event.currentTarget.offsetHeight,\n })\n : {\n x: clampMatrixReferencePosition(nextX),\n y: clampMatrixReferencePosition(nextY),\n };\n onPositionChange(id, target, next.x, next.y);\n },\n onPointerUp: releasePointer,\n onPointerCancel: releasePointer,\n onKeyDown: (event: KeyboardEvent) => {\n if (!onPositionChange) return;\n const step = event.shiftKey ? 0.1 : 0.025;\n const offsets: Record = {\n ArrowLeft: [-step, 0],\n ArrowRight: [step, 0],\n ArrowUp: [0, -step],\n ArrowDown: [0, step],\n };\n const offset = offsets[event.key];\n if (!offset) return;\n event.preventDefault();\n event.stopPropagation();\n const cell = event.currentTarget.parentElement;\n const cellBounds = cell?.getBoundingClientRect();\n const next = target === \"label\" && cellBounds\n ? clampMatrixLabelPosition(x + offset[0], y + offset[1], {\n cellWidth: cellBounds.width,\n cellHeight: cellBounds.height,\n labelWidth: event.currentTarget.offsetWidth,\n labelHeight: event.currentTarget.offsetHeight,\n })\n : {\n x: clampMatrixReferencePosition(x + offset[0]),\n y: clampMatrixReferencePosition(y + offset[1]),\n };\n onPositionChange(id, target, next.x, next.y);\n },\n };\n}\n\nfunction releasePointer(event: PointerEvent) {\n if (event.currentTarget.hasPointerCapture(event.pointerId)) {\n event.currentTarget.releasePointerCapture(event.pointerId);\n }\n}\n\ninterface MatrixElementBounds {\n cellWidth: number;\n cellHeight: number;\n labelWidth: number;\n labelHeight: number;\n}\n\nexport function clampMatrixLabelPosition(\n x: number,\n y: number,\n bounds: MatrixElementBounds,\n): { x: number; y: number } {\n return {\n x: clampPositionForExtent(\n x,\n bounds.labelWidth,\n bounds.cellWidth,\n ),\n y: clampPositionForExtent(\n y,\n bounds.labelHeight,\n bounds.cellHeight,\n ),\n };\n}\n\nfunction clampPositionForExtent(\n value: number,\n elementSize: number,\n containerSize: number,\n): number {\n if (elementSize <= 0 || containerSize <= 0) {\n return clampMatrixReferencePosition(value);\n }\n const padding = 4 / containerSize;\n const extent = elementSize / containerSize / 2 + padding;\n const min = Math.max(\n MATRIX_REFERENCE_POSITION_MIN,\n Math.min(0.5, extent),\n );\n const max = Math.min(\n MATRIX_REFERENCE_POSITION_MAX,\n Math.max(0.5, 1 - extent),\n );\n return roundPosition(Math.min(max, Math.max(min, value)));\n}\n\nfunction roundPosition(value: number): number {\n return Math.round(value * 1000) / 1000;\n}\n\nexport function matrixReferenceConnectorPoints(\n symbolX: number,\n symbolY: number,\n labelX: number,\n labelY: number,\n): { x1: string; y1: string; x2: string; y2: string } {\n return {\n x1: `${clampMatrixReferencePosition(symbolX) * 100}%`,\n y1: `${clampMatrixReferencePosition(symbolY) * 100}%`,\n x2: `${clampMatrixReferencePosition(labelX) * 100}%`,\n y2: `${clampMatrixReferencePosition(labelY) * 100}%`,\n };\n}\n\nexport function matrixReferencePositionStyle(\n x: number,\n y: number,\n): { left: string; top: string; transform: string } {\n return {\n left: `${clampMatrixReferencePosition(x) * 100}%`,\n top: `${clampMatrixReferencePosition(y) * 100}%`,\n transform: \"translate(-50%, -50%)\",\n };\n}\n\nexport function matrixAnnotationSizeClasses(\n _size: MatrixSize,\n): { annotation: string; marker: string } {\n return {\n annotation:\n \"max-w-[88%] rounded-md px-1.5 py-1 text-[10px] leading-tight sm:text-xs\",\n marker: \"h-5 w-5\",\n };\n}\n\nexport function MatrixReferenceLegend(\n { references, size, className = \"\" }: {\n references: MatrixReference[];\n size: MatrixSize;\n className?: string;\n },\n) {\n const visibleReferences = references.filter((reference) =>\n reference.label.trim()\n );\n if (visibleReferences.length === 0) return null;\n\n return (\n \n

\n Comparison points\n

\n {visibleReferences.map((reference) => {\n const index = references.findIndex((item) =>\n item.id === reference.id\n );\n return (\n \n \n \n {reference.label}\n \n \n

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