tldraw/dist-esm/lib/tools/SelectTool/childStates/PointingArrowLabel.mjs.map

A tiny little drawing editor.

{
  "version": 3,
  "sources": ["../../../../../src/lib/tools/SelectTool/childStates/PointingArrowLabel.ts"],
  "sourcesContent": ["import {\n\tArc2d,\n\tGeometry2d,\n\tGroup2d,\n\tStateNode,\n\tTLArrowShape,\n\tTLPointerEventInfo,\n\tTLShapeId,\n\tVec,\n\tgetPointInArcT,\n} from '@tldraw/editor'\nimport { getArrowInfo } from '../../../shapes/arrow/shared'\n\nexport class PointingArrowLabel extends StateNode {\n\tstatic override id = 'pointing_arrow_label'\n\n\tshapeId = '' as TLShapeId\n\tmarkId = ''\n\twasAlreadySelected = false\n\tdidDrag = false\n\tdidCtrlOnEnter = false\n\n\tprivate info = {} as TLPointerEventInfo & {\n\t\tshape: TLArrowShape\n\t\tonInteractionEnd?: string\n\t\tisCreating: boolean\n\t}\n\n\tprivate updateCursor() {\n\t\tthis.editor.setCursor({ type: 'grabbing', rotation: 0 })\n\t}\n\n\toverride onEnter(\n\t\tinfo: TLPointerEventInfo & {\n\t\t\tshape: TLArrowShape\n\t\t\tonInteractionEnd?: string\n\t\t\tisCreating: boolean\n\t\t}\n\t) {\n\t\tconst { shape } = info\n\t\tthis.parent.setCurrentToolIdMask(info.onInteractionEnd)\n\t\tthis.info = info\n\t\tthis.shapeId = shape.id\n\t\tthis.didDrag = false\n\t\tthis.didCtrlOnEnter = info.accelKey\n\t\tthis.wasAlreadySelected = this.editor.getOnlySelectedShapeId() === shape.id\n\t\tthis.updateCursor()\n\n\t\tconst geometry = this.editor.getShapeGeometry<Group2d>(shape)\n\t\tconst labelGeometry = geometry.children[1]\n\t\tif (!labelGeometry) {\n\t\t\tthrow Error(`Expected to find an arrow label geometry for shape: ${shape.id}`)\n\t\t}\n\t\tconst { currentPagePoint } = this.editor.inputs\n\t\tconst pointInShapeSpace = this.editor.getPointInShapeSpace(shape, currentPagePoint)\n\n\t\tthis._labelDragOffset = Vec.Sub(labelGeometry.center, pointInShapeSpace)\n\n\t\tthis.markId = this.editor.markHistoryStoppingPoint('label-drag start')\n\t\tthis.editor.setSelectedShapes([this.shapeId])\n\t}\n\n\toverride onExit() {\n\t\tthis.parent.setCurrentToolIdMask(undefined)\n\n\t\tthis.editor.setCursor({ type: 'default', rotation: 0 })\n\t}\n\n\tprivate _labelDragOffset = new Vec(0, 0)\n\n\toverride onPointerMove() {\n\t\tconst { isDragging } = this.editor.inputs\n\t\tif (!isDragging) return\n\n\t\tif (this.didCtrlOnEnter) {\n\t\t\tthis.parent.transition('brushing', this.info)\n\t\t\treturn\n\t\t}\n\n\t\tconst shape = this.editor.getShape<TLArrowShape>(this.shapeId)\n\t\tif (!shape) return\n\n\t\tconst info = getArrowInfo(this.editor, shape)!\n\n\t\tconst groupGeometry = this.editor.getShapeGeometry<Group2d>(shape)\n\t\tconst bodyGeometry = groupGeometry.children[0] as Geometry2d\n\t\tconst pointInShapeSpace = this.editor.getPointInShapeSpace(\n\t\t\tshape,\n\t\t\tthis.editor.inputs.currentPagePoint\n\t\t)\n\t\tconst nearestPoint = bodyGeometry.nearestPoint(\n\t\t\tVec.Add(pointInShapeSpace, this._labelDragOffset)\n\t\t)\n\n\t\tlet nextLabelPosition\n\t\tif (info.isStraight) {\n\t\t\t// straight arrows\n\t\t\tconst lineLength = Vec.Dist(info.start.point, info.end.point)\n\t\t\tconst segmentLength = Vec.Dist(info.end.point, nearestPoint)\n\t\t\tnextLabelPosition = 1 - segmentLength / lineLength\n\t\t} else {\n\t\t\tconst { _center, measure, angleEnd, angleStart } = groupGeometry.children[0] as Arc2d\n\t\t\tnextLabelPosition = getPointInArcT(measure, angleStart, angleEnd, _center.angle(nearestPoint))\n\t\t}\n\n\t\tif (isNaN(nextLabelPosition)) {\n\t\t\tnextLabelPosition = 0.5\n\t\t}\n\n\t\tthis.didDrag = true\n\t\tthis.editor.updateShape<TLArrowShape>({\n\t\t\tid: shape.id,\n\t\t\ttype: shape.type,\n\t\t\tprops: { labelPosition: nextLabelPosition },\n\t\t})\n\t}\n\n\toverride onPointerUp() {\n\t\tconst shape = this.editor.getShape<TLArrowShape>(this.shapeId)\n\t\tif (!shape) return\n\n\t\tif (this.didDrag || !this.wasAlreadySelected) {\n\t\t\tthis.complete()\n\t\t} else if (!this.editor.getIsReadonly()) {\n\t\t\t// Go into edit mode.\n\t\t\tthis.editor.setEditingShape(shape.id)\n\t\t\tthis.editor.setCurrentTool('select.editing_shape')\n\t\t}\n\t}\n\n\toverride onCancel() {\n\t\tthis.cancel()\n\t}\n\n\toverride onComplete() {\n\t\tthis.cancel()\n\t}\n\n\toverride onInterrupt() {\n\t\tthis.cancel()\n\t}\n\n\tprivate complete() {\n\t\tif (this.info.onInteractionEnd) {\n\t\t\tthis.editor.setCurrentTool(this.info.onInteractionEnd, {})\n\t\t} else {\n\t\t\tthis.parent.transition('idle')\n\t\t}\n\t}\n\n\tprivate cancel() {\n\t\tthis.editor.bailToMark(this.markId)\n\n\t\tif (this.info.onInteractionEnd) {\n\t\t\tthis.editor.setCurrentTool(this.info.onInteractionEnd, {})\n\t\t} else {\n\t\t\tthis.parent.transition('idle')\n\t\t}\n\t}\n}\n"],
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