A UMD build of @xyflow/system
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.gf.qytechs.cn/scripts/520289/1500120/%40xyflow%E1%9C%B5system.js
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('d3-drag'), require('d3-selection'), require('d3-zoom')) :
typeof define === 'function' && define.amd ? define(['exports', 'd3-drag', 'd3-selection', 'd3-zoom'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.myBundle = {}, global.d3, global.d3, global.d3));
})(this, (function (exports, d3Drag, d3Selection, d3Zoom) { 'use strict';
var errorMessages = {
error001: () => "[React Flow]: Seems like you have not used zustand provider as an ancestor. Help: https://reactflow.dev/error#001",
error002: () => "It looks like you've created a new nodeTypes or edgeTypes object. If this wasn't on purpose please define the nodeTypes/edgeTypes outside of the component or memoize them.",
error003: (nodeType) => `Node type "${nodeType}" not found. Using fallback type "default".`,
error004: () => "The React Flow parent container needs a width and a height to render the graph.",
error005: () => "Only child nodes can use a parent extent.",
error006: () => "Can't create edge. An edge needs a source and a target.",
error007: (id) => `The old edge with id=${id} does not exist.`,
error009: (type) => `Marker type "${type}" doesn't exist.`,
error008: (handleType, { id, sourceHandle, targetHandle }) => `Couldn't create edge for ${handleType} handle id: "${handleType === "source" ? sourceHandle : targetHandle}", edge id: ${id}.`,
error010: () => "Handle: No node id found. Make sure to only use a Handle inside a custom Node.",
error011: (edgeType) => `Edge type "${edgeType}" not found. Using fallback type "default".`,
error012: (id) => `Node with id "${id}" does not exist, it may have been removed. This can happen when a node is deleted before the "onNodeClick" handler is called.`,
error013: (lib = "react") => `It seems that you haven't loaded the styles. Please import '@xyflow/${lib}/dist/style.css' or base.css to make sure everything is working properly.`
};
var infiniteExtent = [
[Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY],
[Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY]
];
var elementSelectionKeys = ["Enter", " ", "Escape"];
exports.ConnectionMode = void 0;
(function(ConnectionMode2) {
ConnectionMode2["Strict"] = "strict";
ConnectionMode2["Loose"] = "loose";
})(exports.ConnectionMode || (exports.ConnectionMode = {}));
exports.PanOnScrollMode = void 0;
(function(PanOnScrollMode2) {
PanOnScrollMode2["Free"] = "free";
PanOnScrollMode2["Vertical"] = "vertical";
PanOnScrollMode2["Horizontal"] = "horizontal";
})(exports.PanOnScrollMode || (exports.PanOnScrollMode = {}));
exports.SelectionMode = void 0;
(function(SelectionMode2) {
SelectionMode2["Partial"] = "partial";
SelectionMode2["Full"] = "full";
})(exports.SelectionMode || (exports.SelectionMode = {}));
var initialConnection = {
inProgress: false,
isValid: null,
from: null,
fromHandle: null,
fromPosition: null,
fromNode: null,
to: null,
toHandle: null,
toPosition: null,
toNode: null
};
exports.ConnectionLineType = void 0;
(function(ConnectionLineType2) {
ConnectionLineType2["Bezier"] = "default";
ConnectionLineType2["Straight"] = "straight";
ConnectionLineType2["Step"] = "step";
ConnectionLineType2["SmoothStep"] = "smoothstep";
ConnectionLineType2["SimpleBezier"] = "simplebezier";
})(exports.ConnectionLineType || (exports.ConnectionLineType = {}));
exports.MarkerType = void 0;
(function(MarkerType2) {
MarkerType2["Arrow"] = "arrow";
MarkerType2["ArrowClosed"] = "arrowclosed";
})(exports.MarkerType || (exports.MarkerType = {}));
exports.Position = void 0;
(function(Position2) {
Position2["Left"] = "left";
Position2["Top"] = "top";
Position2["Right"] = "right";
Position2["Bottom"] = "bottom";
})(exports.Position || (exports.Position = {}));
var oppositePosition = {
[exports.Position.Left]: exports.Position.Right,
[exports.Position.Right]: exports.Position.Left,
[exports.Position.Top]: exports.Position.Bottom,
[exports.Position.Bottom]: exports.Position.Top
};
function areConnectionMapsEqual(a, b) {
if (!a && !b) {
return true;
}
if (!a || !b || a.size !== b.size) {
return false;
}
if (!a.size && !b.size) {
return true;
}
for (const key of a.keys()) {
if (!b.has(key)) {
return false;
}
}
return true;
}
function handleConnectionChange(a, b, cb) {
if (!cb) {
return;
}
const diff = [];
a.forEach((connection, key) => {
if (!b?.has(key)) {
diff.push(connection);
}
});
if (diff.length) {
cb(diff);
}
}
function getConnectionStatus(isValid) {
return isValid === null ? null : isValid ? "valid" : "invalid";
}
var isEdgeBase = (element) => "id" in element && "source" in element && "target" in element;
var isNodeBase = (element) => "id" in element && "position" in element && !("source" in element) && !("target" in element);
var isInternalNodeBase = (element) => "id" in element && "internals" in element && !("source" in element) && !("target" in element);
var getOutgoers = (node, nodes, edges) => {
if (!node.id) {
return [];
}
const outgoerIds = new Set();
edges.forEach((edge) => {
if (edge.source === node.id) {
outgoerIds.add(edge.target);
}
});
return nodes.filter((n) => outgoerIds.has(n.id));
};
var getIncomers = (node, nodes, edges) => {
if (!node.id) {
return [];
}
const incomersIds = new Set();
edges.forEach((edge) => {
if (edge.target === node.id) {
incomersIds.add(edge.source);
}
});
return nodes.filter((n) => incomersIds.has(n.id));
};
var getNodePositionWithOrigin = (node, nodeOrigin = [0, 0]) => {
const { width, height } = getNodeDimensions(node);
const origin = node.origin ?? nodeOrigin;
const offsetX = width * origin[0];
const offsetY = height * origin[1];
return {
x: node.position.x - offsetX,
y: node.position.y - offsetY
};
};
var getNodesBounds = (nodes, params = { nodeOrigin: [0, 0], nodeLookup: void 0 }) => {
if (!params.nodeLookup) {
console.warn("Please use `getNodesBounds` from `useReactFlow`/`useSvelteFlow` hook to ensure correct values for sub flows. If not possible, you have to provide a nodeLookup to support sub flows.");
}
if (nodes.length === 0) {
return { x: 0, y: 0, width: 0, height: 0 };
}
const box = nodes.reduce((currBox, nodeOrId) => {
const isId = typeof nodeOrId === "string";
let currentNode = !params.nodeLookup && !isId ? nodeOrId : void 0;
if (params.nodeLookup) {
currentNode = isId ? params.nodeLookup.get(nodeOrId) : !isInternalNodeBase(nodeOrId) ? params.nodeLookup.get(nodeOrId.id) : nodeOrId;
}
const nodeBox = currentNode ? nodeToBox(currentNode, params.nodeOrigin) : { x: 0, y: 0, x2: 0, y2: 0 };
return getBoundsOfBoxes(currBox, nodeBox);
}, { x: Infinity, y: Infinity, x2: -Infinity, y2: -Infinity });
return boxToRect(box);
};
var getInternalNodesBounds = (nodeLookup, params = {}) => {
if (nodeLookup.size === 0) {
return { x: 0, y: 0, width: 0, height: 0 };
}
let box = { x: Infinity, y: Infinity, x2: -Infinity, y2: -Infinity };
nodeLookup.forEach((node) => {
if (params.filter === void 0 || params.filter(node)) {
const nodeBox = nodeToBox(node);
box = getBoundsOfBoxes(box, nodeBox);
}
});
return boxToRect(box);
};
var getNodesInside = (nodes, rect, [tx, ty, tScale] = [0, 0, 1], partially = false, excludeNonSelectableNodes = false) => {
const paneRect = {
...pointToRendererPoint(rect, [tx, ty, tScale]),
width: rect.width / tScale,
height: rect.height / tScale
};
const visibleNodes = [];
for (const node of nodes.values()) {
const { measured, selectable = true, hidden = false } = node;
if (excludeNonSelectableNodes && !selectable || hidden) {
continue;
}
const width = measured.width ?? node.width ?? node.initialWidth ?? null;
const height = measured.height ?? node.height ?? node.initialHeight ?? null;
const overlappingArea = getOverlappingArea(paneRect, nodeToRect(node));
const area = (width ?? 0) * (height ?? 0);
const partiallyVisible = partially && overlappingArea > 0;
const forceInitialRender = !node.internals.handleBounds;
const isVisible = forceInitialRender || partiallyVisible || overlappingArea >= area;
if (isVisible || node.dragging) {
visibleNodes.push(node);
}
}
return visibleNodes;
};
var getConnectedEdges = (nodes, edges) => {
const nodeIds = new Set();
nodes.forEach((node) => {
nodeIds.add(node.id);
});
return edges.filter((edge) => nodeIds.has(edge.source) || nodeIds.has(edge.target));
};
function getFitViewNodes(nodeLookup, options) {
const fitViewNodes = new Map();
const optionNodeIds = options?.nodes ? new Set(options.nodes.map((node) => node.id)) : null;
nodeLookup.forEach((n) => {
const isVisible = n.measured.width && n.measured.height && (options?.includeHiddenNodes || !n.hidden);
if (isVisible && (!optionNodeIds || optionNodeIds.has(n.id))) {
fitViewNodes.set(n.id, n);
}
});
return fitViewNodes;
}
async function fitView({ nodes, width, height, panZoom, minZoom, maxZoom }, options) {
if (nodes.size === 0) {
return Promise.resolve(false);
}
const bounds = getInternalNodesBounds(nodes);
const viewport = getViewportForBounds(bounds, width, height, options?.minZoom ?? minZoom, options?.maxZoom ?? maxZoom, options?.padding ?? 0.1);
await panZoom.setViewport(viewport, { duration: options?.duration });
return Promise.resolve(true);
}
function calculateNodePosition({ nodeId, nextPosition, nodeLookup, nodeOrigin = [0, 0], nodeExtent, onError }) {
const node = nodeLookup.get(nodeId);
const parentNode = node.parentId ? nodeLookup.get(node.parentId) : void 0;
const { x: parentX, y: parentY } = parentNode ? parentNode.internals.positionAbsolute : { x: 0, y: 0 };
const origin = node.origin ?? nodeOrigin;
let extent = nodeExtent;
if (node.extent === "parent" && !node.expandParent) {
if (!parentNode) {
onError?.("005", errorMessages["error005"]());
} else {
const parentWidth = parentNode.measured.width;
const parentHeight = parentNode.measured.height;
if (parentWidth && parentHeight) {
extent = [
[parentX, parentY],
[parentX + parentWidth, parentY + parentHeight]
];
}
}
} else if (parentNode && isCoordinateExtent(node.extent)) {
extent = [
[node.extent[0][0] + parentX, node.extent[0][1] + parentY],
[node.extent[1][0] + parentX, node.extent[1][1] + parentY]
];
}
const positionAbsolute = isCoordinateExtent(extent) ? clampPosition(nextPosition, extent, node.measured) : nextPosition;
return {
position: {
x: positionAbsolute.x - parentX + node.measured.width * origin[0],
y: positionAbsolute.y - parentY + node.measured.height * origin[1]
},
positionAbsolute
};
}
async function getElementsToRemove({ nodesToRemove = [], edgesToRemove = [], nodes, edges, onBeforeDelete }) {
const nodeIds = new Set(nodesToRemove.map((node) => node.id));
const matchingNodes = [];
for (const node of nodes) {
if (node.deletable === false) {
continue;
}
const isIncluded = nodeIds.has(node.id);
const parentHit = !isIncluded && node.parentId && matchingNodes.find((n) => n.id === node.parentId);
if (isIncluded || parentHit) {
matchingNodes.push(node);
}
}
const edgeIds = new Set(edgesToRemove.map((edge) => edge.id));
const deletableEdges = edges.filter((edge) => edge.deletable !== false);
const connectedEdges = getConnectedEdges(matchingNodes, deletableEdges);
const matchingEdges = connectedEdges;
for (const edge of deletableEdges) {
const isIncluded = edgeIds.has(edge.id);
if (isIncluded && !matchingEdges.find((e) => e.id === edge.id)) {
matchingEdges.push(edge);
}
}
if (!onBeforeDelete) {
return {
edges: matchingEdges,
nodes: matchingNodes
};
}
const onBeforeDeleteResult = await onBeforeDelete({
nodes: matchingNodes,
edges: matchingEdges
});
if (typeof onBeforeDeleteResult === "boolean") {
return onBeforeDeleteResult ? { edges: matchingEdges, nodes: matchingNodes } : { edges: [], nodes: [] };
}
return onBeforeDeleteResult;
}
var clamp = (val, min = 0, max = 1) => Math.min(Math.max(val, min), max);
var clampPosition = (position = { x: 0, y: 0 }, extent, dimensions) => ({
x: clamp(position.x, extent[0][0], extent[1][0] - (dimensions?.width ?? 0)),
y: clamp(position.y, extent[0][1], extent[1][1] - (dimensions?.height ?? 0))
});
function clampPositionToParent(childPosition, childDimensions, parent) {
const { width: parentWidth, height: parentHeight } = getNodeDimensions(parent);
const { x: parentX, y: parentY } = parent.internals.positionAbsolute;
return clampPosition(childPosition, [
[parentX, parentY],
[parentX + parentWidth, parentY + parentHeight]
], childDimensions);
}
var calcAutoPanVelocity = (value, min, max) => {
if (value < min) {
return clamp(Math.abs(value - min), 1, min) / min;
} else if (value > max) {
return -clamp(Math.abs(value - max), 1, min) / min;
}
return 0;
};
var calcAutoPan = (pos, bounds, speed = 15, distance2 = 40) => {
const xMovement = calcAutoPanVelocity(pos.x, distance2, bounds.width - distance2) * speed;
const yMovement = calcAutoPanVelocity(pos.y, distance2, bounds.height - distance2) * speed;
return [xMovement, yMovement];
};
var getBoundsOfBoxes = (box1, box2) => ({
x: Math.min(box1.x, box2.x),
y: Math.min(box1.y, box2.y),
x2: Math.max(box1.x2, box2.x2),
y2: Math.max(box1.y2, box2.y2)
});
var rectToBox = ({ x, y, width, height }) => ({
x,
y,
x2: x + width,
y2: y + height
});
var boxToRect = ({ x, y, x2, y2 }) => ({
x,
y,
width: x2 - x,
height: y2 - y
});
var nodeToRect = (node, nodeOrigin = [0, 0]) => {
const { x, y } = isInternalNodeBase(node) ? node.internals.positionAbsolute : getNodePositionWithOrigin(node, nodeOrigin);
return {
x,
y,
width: node.measured?.width ?? node.width ?? node.initialWidth ?? 0,
height: node.measured?.height ?? node.height ?? node.initialHeight ?? 0
};
};
var nodeToBox = (node, nodeOrigin = [0, 0]) => {
const { x, y } = isInternalNodeBase(node) ? node.internals.positionAbsolute : getNodePositionWithOrigin(node, nodeOrigin);
return {
x,
y,
x2: x + (node.measured?.width ?? node.width ?? node.initialWidth ?? 0),
y2: y + (node.measured?.height ?? node.height ?? node.initialHeight ?? 0)
};
};
var getBoundsOfRects = (rect1, rect2) => boxToRect(getBoundsOfBoxes(rectToBox(rect1), rectToBox(rect2)));
var getOverlappingArea = (rectA, rectB) => {
const xOverlap = Math.max(0, Math.min(rectA.x + rectA.width, rectB.x + rectB.width) - Math.max(rectA.x, rectB.x));
const yOverlap = Math.max(0, Math.min(rectA.y + rectA.height, rectB.y + rectB.height) - Math.max(rectA.y, rectB.y));
return Math.ceil(xOverlap * yOverlap);
};
var isRectObject = (obj) => isNumeric(obj.width) && isNumeric(obj.height) && isNumeric(obj.x) && isNumeric(obj.y);
var isNumeric = (n) => !isNaN(n) && isFinite(n);
var devWarn = (id, message) => {
{
console.warn(`[React Flow]: ${message} Help: https://reactflow.dev/error#${id}`);
}
};
var snapPosition = (position, snapGrid = [1, 1]) => {
return {
x: snapGrid[0] * Math.round(position.x / snapGrid[0]),
y: snapGrid[1] * Math.round(position.y / snapGrid[1])
};
};
var pointToRendererPoint = ({ x, y }, [tx, ty, tScale], snapToGrid = false, snapGrid = [1, 1]) => {
const position = {
x: (x - tx) / tScale,
y: (y - ty) / tScale
};
return snapToGrid ? snapPosition(position, snapGrid) : position;
};
var rendererPointToPoint = ({ x, y }, [tx, ty, tScale]) => {
return {
x: x * tScale + tx,
y: y * tScale + ty
};
};
var getViewportForBounds = (bounds, width, height, minZoom, maxZoom, padding) => {
const xZoom = width / (bounds.width * (1 + padding));
const yZoom = height / (bounds.height * (1 + padding));
const zoom2 = Math.min(xZoom, yZoom);
const clampedZoom = clamp(zoom2, minZoom, maxZoom);
const boundsCenterX = bounds.x + bounds.width / 2;
const boundsCenterY = bounds.y + bounds.height / 2;
const x = width / 2 - boundsCenterX * clampedZoom;
const y = height / 2 - boundsCenterY * clampedZoom;
return { x, y, zoom: clampedZoom };
};
var isMacOs = () => typeof navigator !== "undefined" && navigator?.userAgent?.indexOf("Mac") >= 0;
function isCoordinateExtent(extent) {
return extent !== void 0 && extent !== "parent";
}
function getNodeDimensions(node) {
return {
width: node.measured?.width ?? node.width ?? node.initialWidth ?? 0,
height: node.measured?.height ?? node.height ?? node.initialHeight ?? 0
};
}
function nodeHasDimensions(node) {
return (node.measured?.width ?? node.width ?? node.initialWidth) !== void 0 && (node.measured?.height ?? node.height ?? node.initialHeight) !== void 0;
}
function evaluateAbsolutePosition(position, dimensions = { width: 0, height: 0 }, parentId, nodeLookup, nodeOrigin) {
const positionAbsolute = { ...position };
const parent = nodeLookup.get(parentId);
if (parent) {
const origin = parent.origin || nodeOrigin;
positionAbsolute.x += parent.internals.positionAbsolute.x - (dimensions.width ?? 0) * origin[0];
positionAbsolute.y += parent.internals.positionAbsolute.y - (dimensions.height ?? 0) * origin[1];
}
return positionAbsolute;
}
function getPointerPosition(event, { snapGrid = [0, 0], snapToGrid = false, transform, containerBounds }) {
const { x, y } = getEventPosition(event);
const pointerPos = pointToRendererPoint({ x: x - (containerBounds?.left ?? 0), y: y - (containerBounds?.top ?? 0) }, transform);
const { x: xSnapped, y: ySnapped } = snapToGrid ? snapPosition(pointerPos, snapGrid) : pointerPos;
return {
xSnapped,
ySnapped,
...pointerPos
};
}
var getDimensions = (node) => ({
width: node.offsetWidth,
height: node.offsetHeight
});
var getHostForElement = (element) => element.getRootNode?.() || window?.document;
var inputTags = ["INPUT", "SELECT", "TEXTAREA"];
function isInputDOMNode(event) {
const target = event.composedPath?.()?.[0] || event.target;
const isInput = inputTags.includes(target?.nodeName) || target?.hasAttribute?.("contenteditable");
return isInput || !!target?.closest(".nokey");
}
var isMouseEvent = (event) => "clientX" in event;
var getEventPosition = (event, bounds) => {
const isMouse = isMouseEvent(event);
const evtX = isMouse ? event.clientX : event.touches?.[0].clientX;
const evtY = isMouse ? event.clientY : event.touches?.[0].clientY;
return {
x: evtX - (bounds?.left ?? 0),
y: evtY - (bounds?.top ?? 0)
};
};
var getHandleBounds = (type, nodeElement, nodeBounds, zoom2, nodeId) => {
const handles = nodeElement.querySelectorAll(`.${type}`);
if (!handles || !handles.length) {
return null;
}
return Array.from(handles).map((handle) => {
const handleBounds = handle.getBoundingClientRect();
return {
id: handle.getAttribute("data-handleid"),
type,
nodeId,
position: handle.getAttribute("data-handlepos"),
x: (handleBounds.left - nodeBounds.left) / zoom2,
y: (handleBounds.top - nodeBounds.top) / zoom2,
...getDimensions(handle)
};
});
};
function getBezierEdgeCenter({ sourceX, sourceY, targetX, targetY, sourceControlX, sourceControlY, targetControlX, targetControlY }) {
const centerX = sourceX * 0.125 + sourceControlX * 0.375 + targetControlX * 0.375 + targetX * 0.125;
const centerY = sourceY * 0.125 + sourceControlY * 0.375 + targetControlY * 0.375 + targetY * 0.125;
const offsetX = Math.abs(centerX - sourceX);
const offsetY = Math.abs(centerY - sourceY);
return [centerX, centerY, offsetX, offsetY];
}
function calculateControlOffset(distance2, curvature) {
if (distance2 >= 0) {
return 0.5 * distance2;
}
return curvature * 25 * Math.sqrt(-distance2);
}
function getControlWithCurvature({ pos, x1, y1, x2, y2, c }) {
switch (pos) {
case exports.Position.Left:
return [x1 - calculateControlOffset(x1 - x2, c), y1];
case exports.Position.Right:
return [x1 + calculateControlOffset(x2 - x1, c), y1];
case exports.Position.Top:
return [x1, y1 - calculateControlOffset(y1 - y2, c)];
case exports.Position.Bottom:
return [x1, y1 + calculateControlOffset(y2 - y1, c)];
}
}
function getBezierPath({ sourceX, sourceY, sourcePosition = exports.Position.Bottom, targetX, targetY, targetPosition = exports.Position.Top, curvature = 0.25 }) {
const [sourceControlX, sourceControlY] = getControlWithCurvature({
pos: sourcePosition,
x1: sourceX,
y1: sourceY,
x2: targetX,
y2: targetY,
c: curvature
});
const [targetControlX, targetControlY] = getControlWithCurvature({
pos: targetPosition,
x1: targetX,
y1: targetY,
x2: sourceX,
y2: sourceY,
c: curvature
});
const [labelX, labelY, offsetX, offsetY] = getBezierEdgeCenter({
sourceX,
sourceY,
targetX,
targetY,
sourceControlX,
sourceControlY,
targetControlX,
targetControlY
});
return [
`M${sourceX},${sourceY} C${sourceControlX},${sourceControlY} ${targetControlX},${targetControlY} ${targetX},${targetY}`,
labelX,
labelY,
offsetX,
offsetY
];
}
function getEdgeCenter({ sourceX, sourceY, targetX, targetY }) {
const xOffset = Math.abs(targetX - sourceX) / 2;
const centerX = targetX < sourceX ? targetX + xOffset : targetX - xOffset;
const yOffset = Math.abs(targetY - sourceY) / 2;
const centerY = targetY < sourceY ? targetY + yOffset : targetY - yOffset;
return [centerX, centerY, xOffset, yOffset];
}
function getElevatedEdgeZIndex({ sourceNode, targetNode, selected = false, zIndex = 0, elevateOnSelect = false }) {
if (!elevateOnSelect) {
return zIndex;
}
const edgeOrConnectedNodeSelected = selected || targetNode.selected || sourceNode.selected;
const selectedZIndex = Math.max(sourceNode.internals.z || 0, targetNode.internals.z || 0, 1e3);
return zIndex + (edgeOrConnectedNodeSelected ? selectedZIndex : 0);
}
function isEdgeVisible({ sourceNode, targetNode, width, height, transform }) {
const edgeBox = getBoundsOfBoxes(nodeToBox(sourceNode), nodeToBox(targetNode));
if (edgeBox.x === edgeBox.x2) {
edgeBox.x2 += 1;
}
if (edgeBox.y === edgeBox.y2) {
edgeBox.y2 += 1;
}
const viewRect = {
x: -transform[0] / transform[2],
y: -transform[1] / transform[2],
width: width / transform[2],
height: height / transform[2]
};
return getOverlappingArea(viewRect, boxToRect(edgeBox)) > 0;
}
var getEdgeId = ({ source, sourceHandle, target, targetHandle }) => `xy-edge__${source}${sourceHandle || ""}-${target}${targetHandle || ""}`;
var connectionExists = (edge, edges) => {
return edges.some((el) => el.source === edge.source && el.target === edge.target && (el.sourceHandle === edge.sourceHandle || !el.sourceHandle && !edge.sourceHandle) && (el.targetHandle === edge.targetHandle || !el.targetHandle && !edge.targetHandle));
};
var addEdge = (edgeParams, edges) => {
if (!edgeParams.source || !edgeParams.target) {
devWarn("006", errorMessages["error006"]());
return edges;
}
let edge;
if (isEdgeBase(edgeParams)) {
edge = { ...edgeParams };
} else {
edge = {
...edgeParams,
id: getEdgeId(edgeParams)
};
}
if (connectionExists(edge, edges)) {
return edges;
}
if (edge.sourceHandle === null) {
delete edge.sourceHandle;
}
if (edge.targetHandle === null) {
delete edge.targetHandle;
}
return edges.concat(edge);
};
var reconnectEdge = (oldEdge, newConnection, edges, options = { shouldReplaceId: true }) => {
const { id: oldEdgeId, ...rest } = oldEdge;
if (!newConnection.source || !newConnection.target) {
devWarn("006", errorMessages["error006"]());
return edges;
}
const foundEdge = edges.find((e) => e.id === oldEdge.id);
if (!foundEdge) {
devWarn("007", errorMessages["error007"](oldEdgeId));
return edges;
}
const edge = {
...rest,
id: options.shouldReplaceId ? getEdgeId(newConnection) : oldEdgeId,
source: newConnection.source,
target: newConnection.target,
sourceHandle: newConnection.sourceHandle,
targetHandle: newConnection.targetHandle
};
return edges.filter((e) => e.id !== oldEdgeId).concat(edge);
};
function getStraightPath({ sourceX, sourceY, targetX, targetY }) {
const [labelX, labelY, offsetX, offsetY] = getEdgeCenter({
sourceX,
sourceY,
targetX,
targetY
});
return [`M ${sourceX},${sourceY}L ${targetX},${targetY}`, labelX, labelY, offsetX, offsetY];
}
var handleDirections = {
[exports.Position.Left]: { x: -1, y: 0 },
[exports.Position.Right]: { x: 1, y: 0 },
[exports.Position.Top]: { x: 0, y: -1 },
[exports.Position.Bottom]: { x: 0, y: 1 }
};
var getDirection = ({ source, sourcePosition = exports.Position.Bottom, target }) => {
if (sourcePosition === exports.Position.Left || sourcePosition === exports.Position.Right) {
return source.x < target.x ? { x: 1, y: 0 } : { x: -1, y: 0 };
}
return source.y < target.y ? { x: 0, y: 1 } : { x: 0, y: -1 };
};
var distance = (a, b) => Math.sqrt(Math.pow(b.x - a.x, 2) + Math.pow(b.y - a.y, 2));
function getPoints({ source, sourcePosition = exports.Position.Bottom, target, targetPosition = exports.Position.Top, center, offset }) {
const sourceDir = handleDirections[sourcePosition];
const targetDir = handleDirections[targetPosition];
const sourceGapped = { x: source.x + sourceDir.x * offset, y: source.y + sourceDir.y * offset };
const targetGapped = { x: target.x + targetDir.x * offset, y: target.y + targetDir.y * offset };
const dir = getDirection({
source: sourceGapped,
sourcePosition,
target: targetGapped
});
const dirAccessor = dir.x !== 0 ? "x" : "y";
const currDir = dir[dirAccessor];
let points = [];
let centerX, centerY;
const sourceGapOffset = { x: 0, y: 0 };
const targetGapOffset = { x: 0, y: 0 };
const [defaultCenterX, defaultCenterY, defaultOffsetX, defaultOffsetY] = getEdgeCenter({
sourceX: source.x,
sourceY: source.y,
targetX: target.x,
targetY: target.y
});
if (sourceDir[dirAccessor] * targetDir[dirAccessor] === -1) {
centerX = center.x ?? defaultCenterX;
centerY = center.y ?? defaultCenterY;
const verticalSplit = [
{ x: centerX, y: sourceGapped.y },
{ x: centerX, y: targetGapped.y }
];
const horizontalSplit = [
{ x: sourceGapped.x, y: centerY },
{ x: targetGapped.x, y: centerY }
];
if (sourceDir[dirAccessor] === currDir) {
points = dirAccessor === "x" ? verticalSplit : horizontalSplit;
} else {
points = dirAccessor === "x" ? horizontalSplit : verticalSplit;
}
} else {
const sourceTarget = [{ x: sourceGapped.x, y: targetGapped.y }];
const targetSource = [{ x: targetGapped.x, y: sourceGapped.y }];
if (dirAccessor === "x") {
points = sourceDir.x === currDir ? targetSource : sourceTarget;
} else {
points = sourceDir.y === currDir ? sourceTarget : targetSource;
}
if (sourcePosition === targetPosition) {
const diff = Math.abs(source[dirAccessor] - target[dirAccessor]);
if (diff <= offset) {
const gapOffset = Math.min(offset - 1, offset - diff);
if (sourceDir[dirAccessor] === currDir) {
sourceGapOffset[dirAccessor] = (sourceGapped[dirAccessor] > source[dirAccessor] ? -1 : 1) * gapOffset;
} else {
targetGapOffset[dirAccessor] = (targetGapped[dirAccessor] > target[dirAccessor] ? -1 : 1) * gapOffset;
}
}
}
if (sourcePosition !== targetPosition) {
const dirAccessorOpposite = dirAccessor === "x" ? "y" : "x";
const isSameDir = sourceDir[dirAccessor] === targetDir[dirAccessorOpposite];
const sourceGtTargetOppo = sourceGapped[dirAccessorOpposite] > targetGapped[dirAccessorOpposite];
const sourceLtTargetOppo = sourceGapped[dirAccessorOpposite] < targetGapped[dirAccessorOpposite];
const flipSourceTarget = sourceDir[dirAccessor] === 1 && (!isSameDir && sourceGtTargetOppo || isSameDir && sourceLtTargetOppo) || sourceDir[dirAccessor] !== 1 && (!isSameDir && sourceLtTargetOppo || isSameDir && sourceGtTargetOppo);
if (flipSourceTarget) {
points = dirAccessor === "x" ? sourceTarget : targetSource;
}
}
const sourceGapPoint = { x: sourceGapped.x + sourceGapOffset.x, y: sourceGapped.y + sourceGapOffset.y };
const targetGapPoint = { x: targetGapped.x + targetGapOffset.x, y: targetGapped.y + targetGapOffset.y };
const maxXDistance = Math.max(Math.abs(sourceGapPoint.x - points[0].x), Math.abs(targetGapPoint.x - points[0].x));
const maxYDistance = Math.max(Math.abs(sourceGapPoint.y - points[0].y), Math.abs(targetGapPoint.y - points[0].y));
if (maxXDistance >= maxYDistance) {
centerX = (sourceGapPoint.x + targetGapPoint.x) / 2;
centerY = points[0].y;
} else {
centerX = points[0].x;
centerY = (sourceGapPoint.y + targetGapPoint.y) / 2;
}
}
const pathPoints = [
source,
{ x: sourceGapped.x + sourceGapOffset.x, y: sourceGapped.y + sourceGapOffset.y },
...points,
{ x: targetGapped.x + targetGapOffset.x, y: targetGapped.y + targetGapOffset.y },
target
];
return [pathPoints, centerX, centerY, defaultOffsetX, defaultOffsetY];
}
function getBend(a, b, c, size) {
const bendSize = Math.min(distance(a, b) / 2, distance(b, c) / 2, size);
const { x, y } = b;
if (a.x === x && x === c.x || a.y === y && y === c.y) {
return `L${x} ${y}`;
}
if (a.y === y) {
const xDir2 = a.x < c.x ? -1 : 1;
const yDir2 = a.y < c.y ? 1 : -1;
return `L ${x + bendSize * xDir2},${y}Q ${x},${y} ${x},${y + bendSize * yDir2}`;
}
const xDir = a.x < c.x ? 1 : -1;
const yDir = a.y < c.y ? -1 : 1;
return `L ${x},${y + bendSize * yDir}Q ${x},${y} ${x + bendSize * xDir},${y}`;
}
function getSmoothStepPath({ sourceX, sourceY, sourcePosition = exports.Position.Bottom, targetX, targetY, targetPosition = exports.Position.Top, borderRadius = 5, centerX, centerY, offset = 20 }) {
const [points, labelX, labelY, offsetX, offsetY] = getPoints({
source: { x: sourceX, y: sourceY },
sourcePosition,
target: { x: targetX, y: targetY },
targetPosition,
center: { x: centerX, y: centerY },
offset
});
const path = points.reduce((res, p, i) => {
let segment = "";
if (i > 0 && i < points.length - 1) {
segment = getBend(points[i - 1], p, points[i + 1], borderRadius);
} else {
segment = `${i === 0 ? "M" : "L"}${p.x} ${p.y}`;
}
res += segment;
return res;
}, "");
return [path, labelX, labelY, offsetX, offsetY];
}
function isNodeInitialized(node) {
return node && !!(node.internals.handleBounds || node.handles?.length) && !!(node.measured.width || node.width || node.initialWidth);
}
function getEdgePosition(params) {
const { sourceNode, targetNode } = params;
if (!isNodeInitialized(sourceNode) || !isNodeInitialized(targetNode)) {
return null;
}
const sourceHandleBounds = sourceNode.internals.handleBounds || toHandleBounds(sourceNode.handles);
const targetHandleBounds = targetNode.internals.handleBounds || toHandleBounds(targetNode.handles);
const sourceHandle = getHandle$1(sourceHandleBounds?.source ?? [], params.sourceHandle);
const targetHandle = getHandle$1(
// when connection type is loose we can define all handles as sources and connect source -> source
params.connectionMode === exports.ConnectionMode.Strict ? targetHandleBounds?.target ?? [] : (targetHandleBounds?.target ?? []).concat(targetHandleBounds?.source ?? []),
params.targetHandle
);
if (!sourceHandle || !targetHandle) {
params.onError?.("008", errorMessages["error008"](!sourceHandle ? "source" : "target", {
id: params.id,
sourceHandle: params.sourceHandle,
targetHandle: params.targetHandle
}));
return null;
}
const sourcePosition = sourceHandle?.position || exports.Position.Bottom;
const targetPosition = targetHandle?.position || exports.Position.Top;
const source = getHandlePosition(sourceNode, sourceHandle, sourcePosition);
const target = getHandlePosition(targetNode, targetHandle, targetPosition);
return {
sourceX: source.x,
sourceY: source.y,
targetX: target.x,
targetY: target.y,
sourcePosition,
targetPosition
};
}
function toHandleBounds(handles) {
if (!handles) {
return null;
}
const source = [];
const target = [];
for (const handle of handles) {
handle.width = handle.width ?? 1;
handle.height = handle.height ?? 1;
if (handle.type === "source") {
source.push(handle);
} else if (handle.type === "target") {
target.push(handle);
}
}
return {
source,
target
};
}
function getHandlePosition(node, handle, fallbackPosition = exports.Position.Left, center = false) {
const x = (handle?.x ?? 0) + node.internals.positionAbsolute.x;
const y = (handle?.y ?? 0) + node.internals.positionAbsolute.y;
const { width, height } = handle ?? getNodeDimensions(node);
if (center) {
return { x: x + width / 2, y: y + height / 2 };
}
const position = handle?.position ?? fallbackPosition;
switch (position) {
case exports.Position.Top:
return { x: x + width / 2, y };
case exports.Position.Right:
return { x: x + width, y: y + height / 2 };
case exports.Position.Bottom:
return { x: x + width / 2, y: y + height };
case exports.Position.Left:
return { x, y: y + height / 2 };
}
}
function getHandle$1(bounds, handleId) {
if (!bounds) {
return null;
}
return (!handleId ? bounds[0] : bounds.find((d) => d.id === handleId)) || null;
}
function getMarkerId(marker, id) {
if (!marker) {
return "";
}
if (typeof marker === "string") {
return marker;
}
const idPrefix = id ? `${id}__` : "";
return `${idPrefix}${Object.keys(marker).sort().map((key) => `${key}=${marker[key]}`).join("&")}`;
}
function createMarkerIds(edges, { id, defaultColor, defaultMarkerStart, defaultMarkerEnd }) {
const ids = new Set();
return edges.reduce((markers, edge) => {
[edge.markerStart || defaultMarkerStart, edge.markerEnd || defaultMarkerEnd].forEach((marker) => {
if (marker && typeof marker === "object") {
const markerId = getMarkerId(marker, id);
if (!ids.has(markerId)) {
markers.push({ id: markerId, color: marker.color || defaultColor, ...marker });
ids.add(markerId);
}
}
});
return markers;
}, []).sort((a, b) => a.id.localeCompare(b.id));
}
function getNodeToolbarTransform(nodeRect, viewport, position, offset, align) {
let alignmentOffset = 0.5;
if (align === "start") {
alignmentOffset = 0;
} else if (align === "end") {
alignmentOffset = 1;
}
let pos = [
(nodeRect.x + nodeRect.width * alignmentOffset) * viewport.zoom + viewport.x,
nodeRect.y * viewport.zoom + viewport.y - offset
];
let shift = [-100 * alignmentOffset, -100];
switch (position) {
case exports.Position.Right:
pos = [
(nodeRect.x + nodeRect.width) * viewport.zoom + viewport.x + offset,
(nodeRect.y + nodeRect.height * alignmentOffset) * viewport.zoom + viewport.y
];
shift = [0, -100 * alignmentOffset];
break;
case exports.Position.Bottom:
pos[1] = (nodeRect.y + nodeRect.height) * viewport.zoom + viewport.y + offset;
shift[1] = 0;
break;
case exports.Position.Left:
pos = [
nodeRect.x * viewport.zoom + viewport.x - offset,
(nodeRect.y + nodeRect.height * alignmentOffset) * viewport.zoom + viewport.y
];
shift = [-100, -100 * alignmentOffset];
break;
}
return `translate(${pos[0]}px, ${pos[1]}px) translate(${shift[0]}%, ${shift[1]}%)`;
}
var defaultOptions = {
nodeOrigin: [0, 0],
nodeExtent: infiniteExtent,
elevateNodesOnSelect: true,
defaults: {}
};
var adoptUserNodesDefaultOptions = {
...defaultOptions,
checkEquality: true
};
function mergeObjects(base, incoming) {
const result = { ...base };
for (const key in incoming) {
if (incoming[key] !== void 0) {
result[key] = incoming[key];
}
}
return result;
}
function updateAbsolutePositions(nodeLookup, parentLookup, options) {
const _options = mergeObjects(defaultOptions, options);
for (const node of nodeLookup.values()) {
if (node.parentId) {
updateChildNode(node, nodeLookup, parentLookup, _options);
} else {
const positionWithOrigin = getNodePositionWithOrigin(node, _options.nodeOrigin);
const extent = isCoordinateExtent(node.extent) ? node.extent : _options.nodeExtent;
const clampedPosition = clampPosition(positionWithOrigin, extent, getNodeDimensions(node));
node.internals.positionAbsolute = clampedPosition;
}
}
}
function adoptUserNodes(nodes, nodeLookup, parentLookup, options) {
const _options = mergeObjects(adoptUserNodesDefaultOptions, options);
const tmpLookup = new Map(nodeLookup);
const selectedNodeZ = _options?.elevateNodesOnSelect ? 1e3 : 0;
nodeLookup.clear();
parentLookup.clear();
for (const userNode of nodes) {
let internalNode = tmpLookup.get(userNode.id);
if (_options.checkEquality && userNode === internalNode?.internals.userNode) {
nodeLookup.set(userNode.id, internalNode);
} else {
const positionWithOrigin = getNodePositionWithOrigin(userNode, _options.nodeOrigin);
const extent = isCoordinateExtent(userNode.extent) ? userNode.extent : _options.nodeExtent;
const clampedPosition = clampPosition(positionWithOrigin, extent, getNodeDimensions(userNode));
internalNode = {
..._options.defaults,
...userNode,
measured: {
width: userNode.measured?.width,
height: userNode.measured?.height
},
internals: {
positionAbsolute: clampedPosition,
// if user re-initializes the node or removes `measured` for whatever reason, we reset the handleBounds so that the node gets re-measured
handleBounds: !userNode.measured ? void 0 : internalNode?.internals.handleBounds,
z: calculateZ(userNode, selectedNodeZ),
userNode
}
};
nodeLookup.set(userNode.id, internalNode);
}
if (userNode.parentId) {
updateChildNode(internalNode, nodeLookup, parentLookup, options);
}
}
}
function updateParentLookup(node, parentLookup) {
if (!node.parentId) {
return;
}
const childNodes = parentLookup.get(node.parentId);
if (childNodes) {
childNodes.set(node.id, node);
} else {
parentLookup.set(node.parentId, new Map([[node.id, node]]));
}
}
function updateChildNode(node, nodeLookup, parentLookup, options) {
const { elevateNodesOnSelect, nodeOrigin, nodeExtent } = mergeObjects(defaultOptions, options);
const parentId = node.parentId;
const parentNode = nodeLookup.get(parentId);
if (!parentNode) {
console.warn(`Parent node ${parentId} not found. Please make sure that parent nodes are in front of their child nodes in the nodes array.`);
return;
}
updateParentLookup(node, parentLookup);
const selectedNodeZ = elevateNodesOnSelect ? 1e3 : 0;
const { x, y, z } = calculateChildXYZ(node, parentNode, nodeOrigin, nodeExtent, selectedNodeZ);
const { positionAbsolute } = node.internals;
const positionChanged = x !== positionAbsolute.x || y !== positionAbsolute.y;
if (positionChanged || z !== node.internals.z) {
node.internals = {
...node.internals,
positionAbsolute: positionChanged ? { x, y } : positionAbsolute,
z
};
}
}
function calculateZ(node, selectedNodeZ) {
return (isNumeric(node.zIndex) ? node.zIndex : 0) + (node.selected ? selectedNodeZ : 0);
}
function calculateChildXYZ(childNode, parentNode, nodeOrigin, nodeExtent, selectedNodeZ) {
const { x: parentX, y: parentY } = parentNode.internals.positionAbsolute;
const childDimensions = getNodeDimensions(childNode);
const positionWithOrigin = getNodePositionWithOrigin(childNode, nodeOrigin);
const clampedPosition = isCoordinateExtent(childNode.extent) ? clampPosition(positionWithOrigin, childNode.extent, childDimensions) : positionWithOrigin;
let absolutePosition = clampPosition({ x: parentX + clampedPosition.x, y: parentY + clampedPosition.y }, nodeExtent, childDimensions);
if (childNode.extent === "parent") {
absolutePosition = clampPositionToParent(absolutePosition, childDimensions, parentNode);
}
const childZ = calculateZ(childNode, selectedNodeZ);
const parentZ = parentNode.internals.z ?? 0;
return {
x: absolutePosition.x,
y: absolutePosition.y,
z: parentZ > childZ ? parentZ : childZ
};
}
function handleExpandParent(children, nodeLookup, parentLookup, nodeOrigin = [0, 0]) {
const changes = [];
const parentExpansions = new Map();
for (const child of children) {
const parent = nodeLookup.get(child.parentId);
if (!parent) {
continue;
}
const parentRect = parentExpansions.get(child.parentId)?.expandedRect ?? nodeToRect(parent);
const expandedRect = getBoundsOfRects(parentRect, child.rect);
parentExpansions.set(child.parentId, { expandedRect, parent });
}
if (parentExpansions.size > 0) {
parentExpansions.forEach(({ expandedRect, parent }, parentId) => {
const positionAbsolute = parent.internals.positionAbsolute;
const dimensions = getNodeDimensions(parent);
const origin = parent.origin ?? nodeOrigin;
const xChange = expandedRect.x < positionAbsolute.x ? Math.round(Math.abs(positionAbsolute.x - expandedRect.x)) : 0;
const yChange = expandedRect.y < positionAbsolute.y ? Math.round(Math.abs(positionAbsolute.y - expandedRect.y)) : 0;
const newWidth = Math.max(dimensions.width, Math.round(expandedRect.width));
const newHeight = Math.max(dimensions.height, Math.round(expandedRect.height));
const widthChange = (newWidth - dimensions.width) * origin[0];
const heightChange = (newHeight - dimensions.height) * origin[1];
if (xChange > 0 || yChange > 0 || widthChange || heightChange) {
changes.push({
id: parentId,
type: "position",
position: {
x: parent.position.x - xChange + widthChange,
y: parent.position.y - yChange + heightChange
}
});
parentLookup.get(parentId)?.forEach((childNode) => {
if (!children.some((child) => child.id === childNode.id)) {
changes.push({
id: childNode.id,
type: "position",
position: {
x: childNode.position.x + xChange,
y: childNode.position.y + yChange
}
});
}
});
}
if (dimensions.width < expandedRect.width || dimensions.height < expandedRect.height || xChange || yChange) {
changes.push({
id: parentId,
type: "dimensions",
setAttributes: true,
dimensions: {
width: newWidth + (xChange ? origin[0] * xChange - widthChange : 0),
height: newHeight + (yChange ? origin[1] * yChange - heightChange : 0)
}
});
}
});
}
return changes;
}
function updateNodeInternals(updates, nodeLookup, parentLookup, domNode, nodeOrigin, nodeExtent) {
const viewportNode = domNode?.querySelector(".xyflow__viewport");
let updatedInternals = false;
if (!viewportNode) {
return { changes: [], updatedInternals };
}
const changes = [];
const style = window.getComputedStyle(viewportNode);
const { m22: zoom2 } = new window.DOMMatrixReadOnly(style.transform);
const parentExpandChildren = [];
for (const update of updates.values()) {
const node = nodeLookup.get(update.id);
if (!node) {
continue;
}
if (node.hidden) {
node.internals = {
...node.internals,
handleBounds: void 0
};
updatedInternals = true;
} else {
const dimensions = getDimensions(update.nodeElement);
const dimensionChanged = node.measured.width !== dimensions.width || node.measured.height !== dimensions.height;
const doUpdate = !!(dimensions.width && dimensions.height && (dimensionChanged || !node.internals.handleBounds || update.force));
if (doUpdate) {
const nodeBounds = update.nodeElement.getBoundingClientRect();
const extent = isCoordinateExtent(node.extent) ? node.extent : nodeExtent;
let { positionAbsolute } = node.internals;
if (node.parentId && node.extent === "parent") {
positionAbsolute = clampPositionToParent(positionAbsolute, dimensions, nodeLookup.get(node.parentId));
} else if (extent) {
positionAbsolute = clampPosition(positionAbsolute, extent, dimensions);
}
node.measured = dimensions;
node.internals = {
...node.internals,
positionAbsolute,
handleBounds: {
source: getHandleBounds("source", update.nodeElement, nodeBounds, zoom2, node.id),
target: getHandleBounds("target", update.nodeElement, nodeBounds, zoom2, node.id)
}
};
if (node.parentId) {
updateChildNode(node, nodeLookup, parentLookup, { nodeOrigin });
}
updatedInternals = true;
if (dimensionChanged) {
changes.push({
id: node.id,
type: "dimensions",
dimensions
});
if (node.expandParent && node.parentId) {
parentExpandChildren.push({
id: node.id,
parentId: node.parentId,
rect: nodeToRect(node, nodeOrigin)
});
}
}
}
}
}
if (parentExpandChildren.length > 0) {
const parentExpandChanges = handleExpandParent(parentExpandChildren, nodeLookup, parentLookup, nodeOrigin);
changes.push(...parentExpandChanges);
}
return { changes, updatedInternals };
}
async function panBy({ delta, panZoom, transform, translateExtent, width, height }) {
if (!panZoom || !delta.x && !delta.y) {
return Promise.resolve(false);
}
const nextViewport = await panZoom.setViewportConstrained({
x: transform[0] + delta.x,
y: transform[1] + delta.y,
zoom: transform[2]
}, [
[0, 0],
[width, height]
], translateExtent);
const transformChanged = !!nextViewport && (nextViewport.x !== transform[0] || nextViewport.y !== transform[1] || nextViewport.k !== transform[2]);
return Promise.resolve(transformChanged);
}
function updateConnectionLookup(connectionLookup, edgeLookup, edges) {
connectionLookup.clear();
edgeLookup.clear();
for (const edge of edges) {
const { source, target, sourceHandle = null, targetHandle = null } = edge;
const sourceKey = `${source}-source-${sourceHandle}`;
const targetKey = `${target}-target-${targetHandle}`;
const prevSource = connectionLookup.get(sourceKey) || new Map();
const prevTarget = connectionLookup.get(targetKey) || new Map();
const connection = { edgeId: edge.id, source, target, sourceHandle, targetHandle };
edgeLookup.set(edge.id, edge);
connectionLookup.set(sourceKey, prevSource.set(`${target}-${targetHandle}`, connection));
connectionLookup.set(targetKey, prevTarget.set(`${source}-${sourceHandle}`, connection));
}
}
function shallowNodeData(a, b) {
if (a === null || b === null) {
return false;
}
const _a = Array.isArray(a) ? a : [a];
const _b = Array.isArray(b) ? b : [b];
if (_a.length !== _b.length) {
return false;
}
for (let i = 0; i < _a.length; i++) {
if (_a[i].id !== _b[i].id || _a[i].type !== _b[i].type || !Object.is(_a[i].data, _b[i].data)) {
return false;
}
}
return true;
}
function isParentSelected(node, nodeLookup) {
if (!node.parentId) {
return false;
}
const parentNode = nodeLookup.get(node.parentId);
if (!parentNode) {
return false;
}
if (parentNode.selected) {
return true;
}
return isParentSelected(parentNode, nodeLookup);
}
function hasSelector(target, selector, domNode) {
let current = target;
do {
if (current?.matches(selector))
return true;
if (current === domNode)
return false;
current = current.parentElement;
} while (current);
return false;
}
function getDragItems(nodeLookup, nodesDraggable, mousePos, nodeId) {
const dragItems = new Map();
for (const [id, node] of nodeLookup) {
if ((node.selected || node.id === nodeId) && (!node.parentId || !isParentSelected(node, nodeLookup)) && (node.draggable || nodesDraggable && typeof node.draggable === "undefined")) {
const internalNode = nodeLookup.get(id);
if (internalNode) {
dragItems.set(id, {
id,
position: internalNode.position || { x: 0, y: 0 },
distance: {
x: mousePos.x - internalNode.internals.positionAbsolute.x,
y: mousePos.y - internalNode.internals.positionAbsolute.y
},
extent: internalNode.extent,
parentId: internalNode.parentId,
origin: internalNode.origin,
expandParent: internalNode.expandParent,
internals: {
positionAbsolute: internalNode.internals.positionAbsolute || { x: 0, y: 0 }
},
measured: {
width: internalNode.measured.width ?? 0,
height: internalNode.measured.height ?? 0
}
});
}
}
}
return dragItems;
}
function getEventHandlerParams({ nodeId, dragItems, nodeLookup, dragging = true }) {
const nodesFromDragItems = [];
for (const [id, dragItem] of dragItems) {
const node2 = nodeLookup.get(id)?.internals.userNode;
if (node2) {
nodesFromDragItems.push({
...node2,
position: dragItem.position,
dragging
});
}
}
if (!nodeId) {
return [nodesFromDragItems[0], nodesFromDragItems];
}
const node = nodeLookup.get(nodeId)?.internals.userNode;
return [
!node ? nodesFromDragItems[0] : {
...node,
position: dragItems.get(nodeId)?.position || node.position,
dragging
},
nodesFromDragItems
];
}
function XYDrag({ onNodeMouseDown, getStoreItems, onDragStart, onDrag, onDragStop }) {
let lastPos = { x: null, y: null };
let autoPanId = 0;
let dragItems = new Map();
let autoPanStarted = false;
let mousePosition = { x: 0, y: 0 };
let containerBounds = null;
let dragStarted = false;
let d3Selection$1 = null;
let abortDrag = false;
function update({ noDragClassName, handleSelector, domNode, isSelectable, nodeId, nodeClickDistance = 0 }) {
d3Selection$1 = d3Selection.select(domNode);
function updateNodes({ x, y }, dragEvent) {
const { nodeLookup, nodeExtent, snapGrid, snapToGrid, nodeOrigin, onNodeDrag, onSelectionDrag, onError, updateNodePositions } = getStoreItems();
lastPos = { x, y };
let hasChange = false;
let nodesBox = { x: 0, y: 0, x2: 0, y2: 0 };
if (dragItems.size > 1 && nodeExtent) {
const rect = getInternalNodesBounds(dragItems);
nodesBox = rectToBox(rect);
}
for (const [id, dragItem] of dragItems) {
if (!nodeLookup.has(id)) {
continue;
}
let nextPosition = { x: x - dragItem.distance.x, y: y - dragItem.distance.y };
if (snapToGrid) {
nextPosition = snapPosition(nextPosition, snapGrid);
}
let adjustedNodeExtent = [
[nodeExtent[0][0], nodeExtent[0][1]],
[nodeExtent[1][0], nodeExtent[1][1]]
];
if (dragItems.size > 1 && nodeExtent && !dragItem.extent) {
const { positionAbsolute: positionAbsolute2 } = dragItem.internals;
const x1 = positionAbsolute2.x - nodesBox.x + nodeExtent[0][0];
const x2 = positionAbsolute2.x + dragItem.measured.width - nodesBox.x2 + nodeExtent[1][0];
const y1 = positionAbsolute2.y - nodesBox.y + nodeExtent[0][1];
const y2 = positionAbsolute2.y + dragItem.measured.height - nodesBox.y2 + nodeExtent[1][1];
adjustedNodeExtent = [
[x1, y1],
[x2, y2]
];
}
const { position, positionAbsolute } = calculateNodePosition({
nodeId: id,
nextPosition,
nodeLookup,
nodeExtent: adjustedNodeExtent,
nodeOrigin,
onError
});
hasChange = hasChange || dragItem.position.x !== position.x || dragItem.position.y !== position.y;
dragItem.position = position;
dragItem.internals.positionAbsolute = positionAbsolute;
}
if (!hasChange) {
return;
}
updateNodePositions(dragItems, true);
if (dragEvent && (onDrag || onNodeDrag || !nodeId && onSelectionDrag)) {
const [currentNode, currentNodes] = getEventHandlerParams({
nodeId,
dragItems,
nodeLookup
});
onDrag?.(dragEvent, dragItems, currentNode, currentNodes);
onNodeDrag?.(dragEvent, currentNode, currentNodes);
if (!nodeId) {
onSelectionDrag?.(dragEvent, currentNodes);
}
}
}
async function autoPan() {
if (!containerBounds) {
return;
}
const { transform, panBy: panBy2, autoPanSpeed } = getStoreItems();
const [xMovement, yMovement] = calcAutoPan(mousePosition, containerBounds, autoPanSpeed);
if (xMovement !== 0 || yMovement !== 0) {
lastPos.x = (lastPos.x ?? 0) - xMovement / transform[2];
lastPos.y = (lastPos.y ?? 0) - yMovement / transform[2];
if (await panBy2({ x: xMovement, y: yMovement })) {
updateNodes(lastPos, null);
}
}
autoPanId = requestAnimationFrame(autoPan);
}
function startDrag(event) {
const { nodeLookup, multiSelectionActive, nodesDraggable, transform, snapGrid, snapToGrid, selectNodesOnDrag, onNodeDragStart, onSelectionDragStart, unselectNodesAndEdges } = getStoreItems();
dragStarted = true;
if ((!selectNodesOnDrag || !isSelectable) && !multiSelectionActive && nodeId) {
if (!nodeLookup.get(nodeId)?.selected) {
unselectNodesAndEdges();
}
}
if (isSelectable && selectNodesOnDrag && nodeId) {
onNodeMouseDown?.(nodeId);
}
const pointerPos = getPointerPosition(event.sourceEvent, { transform, snapGrid, snapToGrid, containerBounds });
lastPos = pointerPos;
dragItems = getDragItems(nodeLookup, nodesDraggable, pointerPos, nodeId);
if (dragItems.size > 0 && (onDragStart || onNodeDragStart || !nodeId && onSelectionDragStart)) {
const [currentNode, currentNodes] = getEventHandlerParams({
nodeId,
dragItems,
nodeLookup
});
onDragStart?.(event.sourceEvent, dragItems, currentNode, currentNodes);
onNodeDragStart?.(event.sourceEvent, currentNode, currentNodes);
if (!nodeId) {
onSelectionDragStart?.(event.sourceEvent, currentNodes);
}
}
}
const d3DragInstance = d3Drag.drag().clickDistance(nodeClickDistance).on("start", (event) => {
const { domNode: domNode2, nodeDragThreshold, transform, snapGrid, snapToGrid } = getStoreItems();
containerBounds = domNode2?.getBoundingClientRect() || null;
abortDrag = false;
if (nodeDragThreshold === 0) {
startDrag(event);
}
const pointerPos = getPointerPosition(event.sourceEvent, { transform, snapGrid, snapToGrid, containerBounds });
lastPos = pointerPos;
mousePosition = getEventPosition(event.sourceEvent, containerBounds);
}).on("drag", (event) => {
const { autoPanOnNodeDrag, transform, snapGrid, snapToGrid, nodeDragThreshold, nodeLookup } = getStoreItems();
const pointerPos = getPointerPosition(event.sourceEvent, { transform, snapGrid, snapToGrid, containerBounds });
if (event.sourceEvent.type === "touchmove" && event.sourceEvent.touches.length > 1 || // if user deletes a node while dragging, we need to abort the drag to prevent errors
nodeId && !nodeLookup.has(nodeId)) {
abortDrag = true;
}
if (abortDrag) {
return;
}
if (!autoPanStarted && autoPanOnNodeDrag && dragStarted) {
autoPanStarted = true;
autoPan();
}
if (!dragStarted) {
const x = pointerPos.xSnapped - (lastPos.x ?? 0);
const y = pointerPos.ySnapped - (lastPos.y ?? 0);
const distance2 = Math.sqrt(x * x + y * y);
if (distance2 > nodeDragThreshold) {
startDrag(event);
}
}
if ((lastPos.x !== pointerPos.xSnapped || lastPos.y !== pointerPos.ySnapped) && dragItems && dragStarted) {
mousePosition = getEventPosition(event.sourceEvent, containerBounds);
updateNodes(pointerPos, event.sourceEvent);
}
}).on("end", (event) => {
if (!dragStarted || abortDrag) {
return;
}
autoPanStarted = false;
dragStarted = false;
cancelAnimationFrame(autoPanId);
if (dragItems.size > 0) {
const { nodeLookup, updateNodePositions, onNodeDragStop, onSelectionDragStop } = getStoreItems();
updateNodePositions(dragItems, false);
if (onDragStop || onNodeDragStop || !nodeId && onSelectionDragStop) {
const [currentNode, currentNodes] = getEventHandlerParams({
nodeId,
dragItems,
nodeLookup,
dragging: false
});
onDragStop?.(event.sourceEvent, dragItems, currentNode, currentNodes);
onNodeDragStop?.(event.sourceEvent, currentNode, currentNodes);
if (!nodeId) {
onSelectionDragStop?.(event.sourceEvent, currentNodes);
}
}
}
}).filter((event) => {
const target = event.target;
const isDraggable = !event.button && (!noDragClassName || !hasSelector(target, `.${noDragClassName}`, domNode)) && (!handleSelector || hasSelector(target, handleSelector, domNode));
return isDraggable;
});
d3Selection$1.call(d3DragInstance);
}
function destroy() {
d3Selection$1?.on(".drag", null);
}
return {
update,
destroy
};
}
function getNodesWithinDistance(position, nodeLookup, distance2) {
const nodes = [];
const rect = {
x: position.x - distance2,
y: position.y - distance2,
width: distance2 * 2,
height: distance2 * 2
};
for (const node of nodeLookup.values()) {
if (getOverlappingArea(rect, nodeToRect(node)) > 0) {
nodes.push(node);
}
}
return nodes;
}
var ADDITIONAL_DISTANCE = 250;
function getClosestHandle(position, connectionRadius, nodeLookup, fromHandle) {
let closestHandles = [];
let minDistance = Infinity;
const closeNodes = getNodesWithinDistance(position, nodeLookup, connectionRadius + ADDITIONAL_DISTANCE);
for (const node of closeNodes) {
const allHandles = [...node.internals.handleBounds?.source ?? [], ...node.internals.handleBounds?.target ?? []];
for (const handle of allHandles) {
if (fromHandle.nodeId === handle.nodeId && fromHandle.type === handle.type && fromHandle.id === handle.id) {
continue;
}
const { x, y } = getHandlePosition(node, handle, handle.position, true);
const distance2 = Math.sqrt(Math.pow(x - position.x, 2) + Math.pow(y - position.y, 2));
if (distance2 > connectionRadius) {
continue;
}
if (distance2 < minDistance) {
closestHandles = [{ ...handle, x, y }];
minDistance = distance2;
} else if (distance2 === minDistance) {
closestHandles.push({ ...handle, x, y });
}
}
}
if (!closestHandles.length) {
return null;
}
if (closestHandles.length > 1) {
const oppositeHandleType = fromHandle.type === "source" ? "target" : "source";
return closestHandles.find((handle) => handle.type === oppositeHandleType) ?? closestHandles[0];
}
return closestHandles[0];
}
function getHandle(nodeId, handleType, handleId, nodeLookup, connectionMode, withAbsolutePosition = false) {
const node = nodeLookup.get(nodeId);
if (!node) {
return null;
}
const handles = connectionMode === "strict" ? node.internals.handleBounds?.[handleType] : [...node.internals.handleBounds?.source ?? [], ...node.internals.handleBounds?.target ?? []];
const handle = (handleId ? handles?.find((h) => h.id === handleId) : handles?.[0]) ?? null;
return handle && withAbsolutePosition ? { ...handle, ...getHandlePosition(node, handle, handle.position, true) } : handle;
}
function getHandleType(edgeUpdaterType, handleDomNode) {
if (edgeUpdaterType) {
return edgeUpdaterType;
} else if (handleDomNode?.classList.contains("target")) {
return "target";
} else if (handleDomNode?.classList.contains("source")) {
return "source";
}
return null;
}
function isConnectionValid(isInsideConnectionRadius, isHandleValid) {
let isValid = null;
if (isHandleValid) {
isValid = true;
} else if (isInsideConnectionRadius && !isHandleValid) {
isValid = false;
}
return isValid;
}
var alwaysValid = () => true;
function onPointerDown(event, { connectionMode, connectionRadius, handleId, nodeId, edgeUpdaterType, isTarget, domNode, nodeLookup, lib, autoPanOnConnect, flowId, panBy: panBy2, cancelConnection, onConnectStart, onConnect, onConnectEnd, isValidConnection = alwaysValid, onReconnectEnd, updateConnection, getTransform, getFromHandle, autoPanSpeed }) {
const doc = getHostForElement(event.target);
let autoPanId = 0;
let closestHandle;
const { x, y } = getEventPosition(event);
const clickedHandle = doc?.elementFromPoint(x, y);
const handleType = getHandleType(edgeUpdaterType, clickedHandle);
const containerBounds = domNode?.getBoundingClientRect();
if (!containerBounds || !handleType) {
return;
}
const fromHandleInternal = getHandle(nodeId, handleType, handleId, nodeLookup, connectionMode);
if (!fromHandleInternal) {
return;
}
let position = getEventPosition(event, containerBounds);
let autoPanStarted = false;
let connection = null;
let isValid = false;
let handleDomNode = null;
function autoPan() {
if (!autoPanOnConnect || !containerBounds) {
return;
}
const [x2, y2] = calcAutoPan(position, containerBounds, autoPanSpeed);
panBy2({ x: x2, y: y2 });
autoPanId = requestAnimationFrame(autoPan);
}
const fromHandle = {
...fromHandleInternal,
nodeId,
type: handleType,
position: fromHandleInternal.position
};
const fromNodeInternal = nodeLookup.get(nodeId);
const from = getHandlePosition(fromNodeInternal, fromHandle, exports.Position.Left, true);
const newConnection = {
inProgress: true,
isValid: null,
from,
fromHandle,
fromPosition: fromHandle.position,
fromNode: fromNodeInternal,
to: position,
toHandle: null,
toPosition: oppositePosition[fromHandle.position],
toNode: null
};
updateConnection(newConnection);
let previousConnection = newConnection;
onConnectStart?.(event, { nodeId, handleId, handleType });
function onPointerMove(event2) {
if (!getFromHandle() || !fromHandle) {
onPointerUp(event2);
return;
}
const transform = getTransform();
position = getEventPosition(event2, containerBounds);
closestHandle = getClosestHandle(pointToRendererPoint(position, transform, false, [1, 1]), connectionRadius, nodeLookup, fromHandle);
if (!autoPanStarted) {
autoPan();
autoPanStarted = true;
}
const result = isValidHandle(event2, {
handle: closestHandle,
connectionMode,
fromNodeId: nodeId,
fromHandleId: handleId,
fromType: isTarget ? "target" : "source",
isValidConnection,
doc,
lib,
flowId,
nodeLookup
});
handleDomNode = result.handleDomNode;
connection = result.connection;
isValid = isConnectionValid(!!closestHandle, result.isValid);
const newConnection2 = {
// from stays the same
...previousConnection,
isValid,
to: closestHandle && isValid ? rendererPointToPoint({ x: closestHandle.x, y: closestHandle.y }, transform) : position,
toHandle: result.toHandle,
toPosition: isValid && result.toHandle ? result.toHandle.position : oppositePosition[fromHandle.position],
toNode: result.toHandle ? nodeLookup.get(result.toHandle.nodeId) : null
};
if (isValid && closestHandle && previousConnection.toHandle && newConnection2.toHandle && previousConnection.toHandle.type === newConnection2.toHandle.type && previousConnection.toHandle.nodeId === newConnection2.toHandle.nodeId && previousConnection.toHandle.id === newConnection2.toHandle.id && previousConnection.to.x === newConnection2.to.x && previousConnection.to.y === newConnection2.to.y) {
return;
}
updateConnection(newConnection2);
previousConnection = newConnection2;
}
function onPointerUp(event2) {
if ((closestHandle || handleDomNode) && connection && isValid) {
onConnect?.(connection);
}
const { inProgress, ...connectionState } = previousConnection;
const finalConnectionState = {
...connectionState,
toPosition: previousConnection.toHandle ? previousConnection.toPosition : null
};
onConnectEnd?.(event2, finalConnectionState);
if (edgeUpdaterType) {
onReconnectEnd?.(event2, finalConnectionState);
}
cancelConnection();
cancelAnimationFrame(autoPanId);
autoPanStarted = false;
isValid = false;
connection = null;
handleDomNode = null;
doc.removeEventListener("mousemove", onPointerMove);
doc.removeEventListener("mouseup", onPointerUp);
doc.removeEventListener("touchmove", onPointerMove);
doc.removeEventListener("touchend", onPointerUp);
}
doc.addEventListener("mousemove", onPointerMove);
doc.addEventListener("mouseup", onPointerUp);
doc.addEventListener("touchmove", onPointerMove);
doc.addEventListener("touchend", onPointerUp);
}
function isValidHandle(event, { handle, connectionMode, fromNodeId, fromHandleId, fromType, doc, lib, flowId, isValidConnection = alwaysValid, nodeLookup }) {
const isTarget = fromType === "target";
const handleDomNode = handle ? doc.querySelector(`.${lib}-flow__handle[data-id="${flowId}-${handle?.nodeId}-${handle?.id}-${handle?.type}"]`) : null;
const { x, y } = getEventPosition(event);
const handleBelow = doc.elementFromPoint(x, y);
const handleToCheck = handleBelow?.classList.contains(`${lib}-flow__handle`) ? handleBelow : handleDomNode;
const result = {
handleDomNode: handleToCheck,
isValid: false,
connection: null,
toHandle: null
};
if (handleToCheck) {
const handleType = getHandleType(void 0, handleToCheck);
const handleNodeId = handleToCheck.getAttribute("data-nodeid");
const handleId = handleToCheck.getAttribute("data-handleid");
const connectable = handleToCheck.classList.contains("connectable");
const connectableEnd = handleToCheck.classList.contains("connectableend");
if (!handleNodeId || !handleType) {
return result;
}
const connection = {
source: isTarget ? handleNodeId : fromNodeId,
sourceHandle: isTarget ? handleId : fromHandleId,
target: isTarget ? fromNodeId : handleNodeId,
targetHandle: isTarget ? fromHandleId : handleId
};
result.connection = connection;
const isConnectable = connectable && connectableEnd;
const isValid = isConnectable && (connectionMode === exports.ConnectionMode.Strict ? isTarget && handleType === "source" || !isTarget && handleType === "target" : handleNodeId !== fromNodeId || handleId !== fromHandleId);
result.isValid = isValid && isValidConnection(connection);
result.toHandle = getHandle(handleNodeId, handleType, handleId, nodeLookup, connectionMode, false);
}
return result;
}
var XYHandle = {
onPointerDown,
isValid: isValidHandle
};
function XYMinimap({ domNode, panZoom, getTransform, getViewScale }) {
const selection = d3Selection.select(domNode);
function update({ translateExtent, width, height, zoomStep = 10, pannable = true, zoomable = true, inversePan = false }) {
const zoomHandler = (event) => {
const transform = getTransform();
if (event.sourceEvent.type !== "wheel" || !panZoom) {
return;
}
const pinchDelta = -event.sourceEvent.deltaY * (event.sourceEvent.deltaMode === 1 ? 0.05 : event.sourceEvent.deltaMode ? 1 : 2e-3) * zoomStep;
const nextZoom = transform[2] * Math.pow(2, pinchDelta);
panZoom.scaleTo(nextZoom);
};
let panStart = [0, 0];
const panStartHandler = (event) => {
if (event.sourceEvent.type === "mousedown" || event.sourceEvent.type === "touchstart") {
panStart = [
event.sourceEvent.clientX ?? event.sourceEvent.touches[0].clientX,
event.sourceEvent.clientY ?? event.sourceEvent.touches[0].clientY
];
}
};
const panHandler = (event) => {
const transform = getTransform();
if (event.sourceEvent.type !== "mousemove" && event.sourceEvent.type !== "touchmove" || !panZoom) {
return;
}
const panCurrent = [
event.sourceEvent.clientX ?? event.sourceEvent.touches[0].clientX,
event.sourceEvent.clientY ?? event.sourceEvent.touches[0].clientY
];
const panDelta = [panCurrent[0] - panStart[0], panCurrent[1] - panStart[1]];
panStart = panCurrent;
const moveScale = getViewScale() * Math.max(transform[2], Math.log(transform[2])) * (inversePan ? -1 : 1);
const position = {
x: transform[0] - panDelta[0] * moveScale,
y: transform[1] - panDelta[1] * moveScale
};
const extent = [
[0, 0],
[width, height]
];
panZoom.setViewportConstrained({
x: position.x,
y: position.y,
zoom: transform[2]
}, extent, translateExtent);
};
const zoomAndPanHandler = d3Zoom.zoom().on("start", panStartHandler).on("zoom", pannable ? panHandler : null).on("zoom.wheel", zoomable ? zoomHandler : null);
selection.call(zoomAndPanHandler, {});
}
function destroy() {
selection.on("zoom", null);
}
return {
update,
destroy,
pointer: d3Selection.pointer
};
}
var viewChanged = (prevViewport, eventViewport) => prevViewport.x !== eventViewport.x || prevViewport.y !== eventViewport.y || prevViewport.zoom !== eventViewport.k;
var transformToViewport = (transform) => ({
x: transform.x,
y: transform.y,
zoom: transform.k
});
var viewportToTransform = ({ x, y, zoom: zoom2 }) => d3Zoom.zoomIdentity.translate(x, y).scale(zoom2);
var isWrappedWithClass = (event, className) => event.target.closest(`.${className}`);
var isRightClickPan = (panOnDrag, usedButton) => usedButton === 2 && Array.isArray(panOnDrag) && panOnDrag.includes(2);
var getD3Transition = (selection, duration = 0, onEnd = () => {
}) => {
const hasDuration = typeof duration === "number" && duration > 0;
if (!hasDuration) {
onEnd();
}
return hasDuration ? selection.transition().duration(duration).on("end", onEnd) : selection;
};
var wheelDelta = (event) => {
const factor = event.ctrlKey && isMacOs() ? 10 : 1;
return -event.deltaY * (event.deltaMode === 1 ? 0.05 : event.deltaMode ? 1 : 2e-3) * factor;
};
function createPanOnScrollHandler({ zoomPanValues, noWheelClassName, d3Selection: d3Selection$1, d3Zoom, panOnScrollMode, panOnScrollSpeed, zoomOnPinch, onPanZoomStart, onPanZoom, onPanZoomEnd }) {
return (event) => {
if (isWrappedWithClass(event, noWheelClassName)) {
return false;
}
event.preventDefault();
event.stopImmediatePropagation();
const currentZoom = d3Selection$1.property("__zoom").k || 1;
if (event.ctrlKey && zoomOnPinch) {
const point = d3Selection.pointer(event);
const pinchDelta = wheelDelta(event);
const zoom2 = currentZoom * Math.pow(2, pinchDelta);
d3Zoom.scaleTo(d3Selection$1, zoom2, point, event);
return;
}
const deltaNormalize = event.deltaMode === 1 ? 20 : 1;
let deltaX = panOnScrollMode === exports.PanOnScrollMode.Vertical ? 0 : event.deltaX * deltaNormalize;
let deltaY = panOnScrollMode === exports.PanOnScrollMode.Horizontal ? 0 : event.deltaY * deltaNormalize;
if (!isMacOs() && event.shiftKey && panOnScrollMode !== exports.PanOnScrollMode.Vertical) {
deltaX = event.deltaY * deltaNormalize;
deltaY = 0;
}
d3Zoom.translateBy(
d3Selection$1,
-(deltaX / currentZoom) * panOnScrollSpeed,
-(deltaY / currentZoom) * panOnScrollSpeed,
// @ts-ignore
{ internal: true }
);
const nextViewport = transformToViewport(d3Selection$1.property("__zoom"));
clearTimeout(zoomPanValues.panScrollTimeout);
if (!zoomPanValues.isPanScrolling) {
zoomPanValues.isPanScrolling = true;
onPanZoomStart?.(event, nextViewport);
}
if (zoomPanValues.isPanScrolling) {
onPanZoom?.(event, nextViewport);
zoomPanValues.panScrollTimeout = setTimeout(() => {
onPanZoomEnd?.(event, nextViewport);
zoomPanValues.isPanScrolling = false;
}, 150);
}
};
}
function createZoomOnScrollHandler({ noWheelClassName, preventScrolling, d3ZoomHandler }) {
return function(event, d) {
const preventZoom = !preventScrolling && event.type === "wheel" && !event.ctrlKey;
if (preventZoom || isWrappedWithClass(event, noWheelClassName)) {
return null;
}
event.preventDefault();
d3ZoomHandler.call(this, event, d);
};
}
function createPanZoomStartHandler({ zoomPanValues, onDraggingChange, onPanZoomStart }) {
return (event) => {
if (event.sourceEvent?.internal) {
return;
}
const viewport = transformToViewport(event.transform);
zoomPanValues.mouseButton = event.sourceEvent?.button || 0;
zoomPanValues.isZoomingOrPanning = true;
zoomPanValues.prevViewport = viewport;
if (event.sourceEvent?.type === "mousedown") {
onDraggingChange(true);
}
if (onPanZoomStart) {
onPanZoomStart?.(event.sourceEvent, viewport);
}
};
}
function createPanZoomHandler({ zoomPanValues, panOnDrag, onPaneContextMenu, onTransformChange, onPanZoom }) {
return (event) => {
zoomPanValues.usedRightMouseButton = !!(onPaneContextMenu && isRightClickPan(panOnDrag, zoomPanValues.mouseButton ?? 0));
if (!event.sourceEvent?.sync) {
onTransformChange([event.transform.x, event.transform.y, event.transform.k]);
}
if (onPanZoom && !event.sourceEvent?.internal) {
onPanZoom?.(event.sourceEvent, transformToViewport(event.transform));
}
};
}
function createPanZoomEndHandler({ zoomPanValues, panOnDrag, panOnScroll, onDraggingChange, onPanZoomEnd, onPaneContextMenu }) {
return (event) => {
if (event.sourceEvent?.internal) {
return;
}
zoomPanValues.isZoomingOrPanning = false;
if (onPaneContextMenu && isRightClickPan(panOnDrag, zoomPanValues.mouseButton ?? 0) && !zoomPanValues.usedRightMouseButton && event.sourceEvent) {
onPaneContextMenu(event.sourceEvent);
}
zoomPanValues.usedRightMouseButton = false;
onDraggingChange(false);
if (onPanZoomEnd && viewChanged(zoomPanValues.prevViewport, event.transform)) {
const viewport = transformToViewport(event.transform);
zoomPanValues.prevViewport = viewport;
clearTimeout(zoomPanValues.timerId);
zoomPanValues.timerId = setTimeout(
() => {
onPanZoomEnd?.(event.sourceEvent, viewport);
},
// we need a setTimeout for panOnScroll to supress multiple end events fired during scroll
panOnScroll ? 150 : 0
);
}
};
}
function createFilter({ zoomActivationKeyPressed, zoomOnScroll, zoomOnPinch, panOnDrag, panOnScroll, zoomOnDoubleClick, userSelectionActive, noWheelClassName, noPanClassName, lib }) {
return (event) => {
const zoomScroll = zoomActivationKeyPressed || zoomOnScroll;
const pinchZoom = zoomOnPinch && event.ctrlKey;
if (event.button === 1 && event.type === "mousedown" && (isWrappedWithClass(event, `${lib}-flow__node`) || isWrappedWithClass(event, `${lib}-flow__edge`))) {
return true;
}
if (!panOnDrag && !zoomScroll && !panOnScroll && !zoomOnDoubleClick && !zoomOnPinch) {
return false;
}
if (userSelectionActive) {
return false;
}
if (isWrappedWithClass(event, noWheelClassName) && event.type === "wheel") {
return false;
}
if (isWrappedWithClass(event, noPanClassName) && (event.type !== "wheel" || panOnScroll && event.type === "wheel" && !zoomActivationKeyPressed)) {
return false;
}
if (!zoomOnPinch && event.ctrlKey && event.type === "wheel") {
return false;
}
if (!zoomOnPinch && event.type === "touchstart" && event.touches?.length > 1) {
event.preventDefault();
return false;
}
if (!zoomScroll && !panOnScroll && !pinchZoom && event.type === "wheel") {
return false;
}
if (!panOnDrag && (event.type === "mousedown" || event.type === "touchstart")) {
return false;
}
if (Array.isArray(panOnDrag) && !panOnDrag.includes(event.button) && event.type === "mousedown") {
return false;
}
const buttonAllowed = Array.isArray(panOnDrag) && panOnDrag.includes(event.button) || !event.button || event.button <= 1;
return (!event.ctrlKey || event.type === "wheel") && buttonAllowed;
};
}
function XYPanZoom({ domNode, minZoom, maxZoom, paneClickDistance, translateExtent, viewport, onPanZoom, onPanZoomStart, onPanZoomEnd, onDraggingChange }) {
const zoomPanValues = {
isZoomingOrPanning: false,
usedRightMouseButton: false,
prevViewport: { x: 0, y: 0, zoom: 0 },
mouseButton: 0,
timerId: void 0,
panScrollTimeout: void 0,
isPanScrolling: false
};
const bbox = domNode.getBoundingClientRect();
const d3ZoomInstance = d3Zoom.zoom().clickDistance(!isNumeric(paneClickDistance) || paneClickDistance < 0 ? 0 : paneClickDistance).scaleExtent([minZoom, maxZoom]).translateExtent(translateExtent);
const d3Selection$1 = d3Selection.select(domNode).call(d3ZoomInstance);
setViewportConstrained({
x: viewport.x,
y: viewport.y,
zoom: clamp(viewport.zoom, minZoom, maxZoom)
}, [
[0, 0],
[bbox.width, bbox.height]
], translateExtent);
const d3ZoomHandler = d3Selection$1.on("wheel.zoom");
const d3DblClickZoomHandler = d3Selection$1.on("dblclick.zoom");
d3ZoomInstance.wheelDelta(wheelDelta);
function setTransform(transform, options) {
if (d3Selection$1) {
return new Promise((resolve) => {
d3ZoomInstance?.transform(getD3Transition(d3Selection$1, options?.duration, () => resolve(true)), transform);
});
}
return Promise.resolve(false);
}
function update({ noWheelClassName, noPanClassName, onPaneContextMenu, userSelectionActive, panOnScroll, panOnDrag, panOnScrollMode, panOnScrollSpeed, preventScrolling, zoomOnPinch, zoomOnScroll, zoomOnDoubleClick, zoomActivationKeyPressed, lib, onTransformChange }) {
if (userSelectionActive && !zoomPanValues.isZoomingOrPanning) {
destroy();
}
const isPanOnScroll = panOnScroll && !zoomActivationKeyPressed && !userSelectionActive;
const wheelHandler = isPanOnScroll ? createPanOnScrollHandler({
zoomPanValues,
noWheelClassName,
d3Selection: d3Selection$1,
d3Zoom: d3ZoomInstance,
panOnScrollMode,
panOnScrollSpeed,
zoomOnPinch,
onPanZoomStart,
onPanZoom,
onPanZoomEnd
}) : createZoomOnScrollHandler({
noWheelClassName,
preventScrolling,
d3ZoomHandler
});
d3Selection$1.on("wheel.zoom", wheelHandler, { passive: false });
if (!userSelectionActive) {
const startHandler = createPanZoomStartHandler({
zoomPanValues,
onDraggingChange,
onPanZoomStart
});
d3ZoomInstance.on("start", startHandler);
const panZoomHandler = createPanZoomHandler({
zoomPanValues,
panOnDrag,
onPaneContextMenu: !!onPaneContextMenu,
onPanZoom,
onTransformChange
});
d3ZoomInstance.on("zoom", panZoomHandler);
const panZoomEndHandler = createPanZoomEndHandler({
zoomPanValues,
panOnDrag,
panOnScroll,
onPaneContextMenu,
onPanZoomEnd,
onDraggingChange
});
d3ZoomInstance.on("end", panZoomEndHandler);
}
const filter = createFilter({
zoomActivationKeyPressed,
panOnDrag,
zoomOnScroll,
panOnScroll,
zoomOnDoubleClick,
zoomOnPinch,
userSelectionActive,
noPanClassName,
noWheelClassName,
lib
});
d3ZoomInstance.filter(filter);
if (zoomOnDoubleClick) {
d3Selection$1.on("dblclick.zoom", d3DblClickZoomHandler);
} else {
d3Selection$1.on("dblclick.zoom", null);
}
}
function destroy() {
d3ZoomInstance.on("zoom", null);
}
async function setViewportConstrained(viewport2, extent, translateExtent2) {
const nextTransform = viewportToTransform(viewport2);
const contrainedTransform = d3ZoomInstance?.constrain()(nextTransform, extent, translateExtent2);
if (contrainedTransform) {
await setTransform(contrainedTransform);
}
return new Promise((resolve) => resolve(contrainedTransform));
}
async function setViewport(viewport2, options) {
const nextTransform = viewportToTransform(viewport2);
await setTransform(nextTransform, options);
return new Promise((resolve) => resolve(nextTransform));
}
function syncViewport(viewport2) {
if (d3Selection$1) {
const nextTransform = viewportToTransform(viewport2);
const currentTransform = d3Selection$1.property("__zoom");
if (currentTransform.k !== viewport2.zoom || currentTransform.x !== viewport2.x || currentTransform.y !== viewport2.y) {
d3ZoomInstance?.transform(d3Selection$1, nextTransform, null, { sync: true });
}
}
}
function getViewport() {
const transform = d3Selection$1 ? d3Zoom.zoomTransform(d3Selection$1.node()) : { x: 0, y: 0, k: 1 };
return { x: transform.x, y: transform.y, zoom: transform.k };
}
function scaleTo(zoom2, options) {
if (d3Selection$1) {
return new Promise((resolve) => {
d3ZoomInstance?.scaleTo(getD3Transition(d3Selection$1, options?.duration, () => resolve(true)), zoom2);
});
}
return Promise.resolve(false);
}
function scaleBy(factor, options) {
if (d3Selection$1) {
return new Promise((resolve) => {
d3ZoomInstance?.scaleBy(getD3Transition(d3Selection$1, options?.duration, () => resolve(true)), factor);
});
}
return Promise.resolve(false);
}
function setScaleExtent(scaleExtent) {
d3ZoomInstance?.scaleExtent(scaleExtent);
}
function setTranslateExtent(translateExtent2) {
d3ZoomInstance?.translateExtent(translateExtent2);
}
function setClickDistance(distance2) {
const validDistance = !isNumeric(distance2) || distance2 < 0 ? 0 : distance2;
d3ZoomInstance?.clickDistance(validDistance);
}
return {
update,
destroy,
setViewport,
setViewportConstrained,
getViewport,
scaleTo,
scaleBy,
setScaleExtent,
setTranslateExtent,
syncViewport,
setClickDistance
};
}
exports.ResizeControlVariant = void 0;
(function(ResizeControlVariant2) {
ResizeControlVariant2["Line"] = "line";
ResizeControlVariant2["Handle"] = "handle";
})(exports.ResizeControlVariant || (exports.ResizeControlVariant = {}));
var XY_RESIZER_HANDLE_POSITIONS = ["top-left", "top-right", "bottom-left", "bottom-right"];
var XY_RESIZER_LINE_POSITIONS = ["top", "right", "bottom", "left"];
function getResizeDirection({ width, prevWidth, height, prevHeight, affectsX, affectsY }) {
const deltaWidth = width - prevWidth;
const deltaHeight = height - prevHeight;
const direction = [deltaWidth > 0 ? 1 : deltaWidth < 0 ? -1 : 0, deltaHeight > 0 ? 1 : deltaHeight < 0 ? -1 : 0];
if (deltaWidth && affectsX) {
direction[0] = direction[0] * -1;
}
if (deltaHeight && affectsY) {
direction[1] = direction[1] * -1;
}
return direction;
}
function getControlDirection(controlPosition) {
const isHorizontal = controlPosition.includes("right") || controlPosition.includes("left");
const isVertical = controlPosition.includes("bottom") || controlPosition.includes("top");
const affectsX = controlPosition.includes("left");
const affectsY = controlPosition.includes("top");
return {
isHorizontal,
isVertical,
affectsX,
affectsY
};
}
function getLowerExtentClamp(lowerExtent, lowerBound) {
return Math.max(0, lowerBound - lowerExtent);
}
function getUpperExtentClamp(upperExtent, upperBound) {
return Math.max(0, upperExtent - upperBound);
}
function getSizeClamp(size, minSize, maxSize) {
return Math.max(0, minSize - size, size - maxSize);
}
function xor(a, b) {
return a ? !b : b;
}
function getDimensionsAfterResize(startValues, controlDirection, pointerPosition, boundaries, keepAspectRatio, nodeOrigin, extent, childExtent) {
let { affectsX, affectsY } = controlDirection;
const { isHorizontal, isVertical } = controlDirection;
const isDiagonal = isHorizontal && isVertical;
const { xSnapped, ySnapped } = pointerPosition;
const { minWidth, maxWidth, minHeight, maxHeight } = boundaries;
const { x: startX, y: startY, width: startWidth, height: startHeight, aspectRatio } = startValues;
let distX = Math.floor(isHorizontal ? xSnapped - startValues.pointerX : 0);
let distY = Math.floor(isVertical ? ySnapped - startValues.pointerY : 0);
const newWidth = startWidth + (affectsX ? -distX : distX);
const newHeight = startHeight + (affectsY ? -distY : distY);
const originOffsetX = -nodeOrigin[0] * startWidth;
const originOffsetY = -nodeOrigin[1] * startHeight;
let clampX = getSizeClamp(newWidth, minWidth, maxWidth);
let clampY = getSizeClamp(newHeight, minHeight, maxHeight);
if (extent) {
let xExtentClamp = 0;
let yExtentClamp = 0;
if (affectsX && distX < 0) {
xExtentClamp = getLowerExtentClamp(startX + distX + originOffsetX, extent[0][0]);
} else if (!affectsX && distX > 0) {
xExtentClamp = getUpperExtentClamp(startX + newWidth + originOffsetX, extent[1][0]);
}
if (affectsY && distY < 0) {
yExtentClamp = getLowerExtentClamp(startY + distY + originOffsetY, extent[0][1]);
} else if (!affectsY && distY > 0) {
yExtentClamp = getUpperExtentClamp(startY + newHeight + originOffsetY, extent[1][1]);
}
clampX = Math.max(clampX, xExtentClamp);
clampY = Math.max(clampY, yExtentClamp);
}
if (childExtent) {
let xExtentClamp = 0;
let yExtentClamp = 0;
if (affectsX && distX > 0) {
xExtentClamp = getUpperExtentClamp(startX + distX, childExtent[0][0]);
} else if (!affectsX && distX < 0) {
xExtentClamp = getLowerExtentClamp(startX + newWidth, childExtent[1][0]);
}
if (affectsY && distY > 0) {
yExtentClamp = getUpperExtentClamp(startY + distY, childExtent[0][1]);
} else if (!affectsY && distY < 0) {
yExtentClamp = getLowerExtentClamp(startY + newHeight, childExtent[1][1]);
}
clampX = Math.max(clampX, xExtentClamp);
clampY = Math.max(clampY, yExtentClamp);
}
if (keepAspectRatio) {
if (isHorizontal) {
const aspectHeightClamp = getSizeClamp(newWidth / aspectRatio, minHeight, maxHeight) * aspectRatio;
clampX = Math.max(clampX, aspectHeightClamp);
if (extent) {
let aspectExtentClamp = 0;
if (!affectsX && !affectsY || affectsX && !affectsY && isDiagonal) {
aspectExtentClamp = getUpperExtentClamp(startY + originOffsetY + newWidth / aspectRatio, extent[1][1]) * aspectRatio;
} else {
aspectExtentClamp = getLowerExtentClamp(startY + originOffsetY + (affectsX ? distX : -distX) / aspectRatio, extent[0][1]) * aspectRatio;
}
clampX = Math.max(clampX, aspectExtentClamp);
}
if (childExtent) {
let aspectExtentClamp = 0;
if (!affectsX && !affectsY || affectsX && !affectsY && isDiagonal) {
aspectExtentClamp = getLowerExtentClamp(startY + newWidth / aspectRatio, childExtent[1][1]) * aspectRatio;
} else {
aspectExtentClamp = getUpperExtentClamp(startY + (affectsX ? distX : -distX) / aspectRatio, childExtent[0][1]) * aspectRatio;
}
clampX = Math.max(clampX, aspectExtentClamp);
}
}
if (isVertical) {
const aspectWidthClamp = getSizeClamp(newHeight * aspectRatio, minWidth, maxWidth) / aspectRatio;
clampY = Math.max(clampY, aspectWidthClamp);
if (extent) {
let aspectExtentClamp = 0;
if (!affectsX && !affectsY || affectsY && !affectsX && isDiagonal) {
aspectExtentClamp = getUpperExtentClamp(startX + newHeight * aspectRatio + originOffsetX, extent[1][0]) / aspectRatio;
} else {
aspectExtentClamp = getLowerExtentClamp(startX + (affectsY ? distY : -distY) * aspectRatio + originOffsetX, extent[0][0]) / aspectRatio;
}
clampY = Math.max(clampY, aspectExtentClamp);
}
if (childExtent) {
let aspectExtentClamp = 0;
if (!affectsX && !affectsY || affectsY && !affectsX && isDiagonal) {
aspectExtentClamp = getLowerExtentClamp(startX + newHeight * aspectRatio, childExtent[1][0]) / aspectRatio;
} else {
aspectExtentClamp = getUpperExtentClamp(startX + (affectsY ? distY : -distY) * aspectRatio, childExtent[0][0]) / aspectRatio;
}
clampY = Math.max(clampY, aspectExtentClamp);
}
}
}
distY = distY + (distY < 0 ? clampY : -clampY);
distX = distX + (distX < 0 ? clampX : -clampX);
if (keepAspectRatio) {
if (isDiagonal) {
if (newWidth > newHeight * aspectRatio) {
distY = (xor(affectsX, affectsY) ? -distX : distX) / aspectRatio;
} else {
distX = (xor(affectsX, affectsY) ? -distY : distY) * aspectRatio;
}
} else {
if (isHorizontal) {
distY = distX / aspectRatio;
affectsY = affectsX;
} else {
distX = distY * aspectRatio;
affectsX = affectsY;
}
}
}
const x = affectsX ? startX + distX : startX;
const y = affectsY ? startY + distY : startY;
return {
width: startWidth + (affectsX ? -distX : distX),
height: startHeight + (affectsY ? -distY : distY),
x: nodeOrigin[0] * distX * (!affectsX ? 1 : -1) + x,
y: nodeOrigin[1] * distY * (!affectsY ? 1 : -1) + y
};
}
var initPrevValues = { width: 0, height: 0, x: 0, y: 0 };
var initStartValues = {
...initPrevValues,
pointerX: 0,
pointerY: 0,
aspectRatio: 1
};
function nodeToParentExtent(node) {
return [
[0, 0],
[node.measured.width, node.measured.height]
];
}
function nodeToChildExtent(child, parent, nodeOrigin) {
const x = parent.position.x + child.position.x;
const y = parent.position.y + child.position.y;
const width = child.measured.width ?? 0;
const height = child.measured.height ?? 0;
const originOffsetX = nodeOrigin[0] * width;
const originOffsetY = nodeOrigin[1] * height;
return [
[x - originOffsetX, y - originOffsetY],
[x + width - originOffsetX, y + height - originOffsetY]
];
}
function XYResizer({ domNode, nodeId, getStoreItems, onChange, onEnd }) {
const selection = d3Selection.select(domNode);
function update({ controlPosition, boundaries, keepAspectRatio, onResizeStart, onResize, onResizeEnd, shouldResize }) {
let prevValues = { ...initPrevValues };
let startValues = { ...initStartValues };
const controlDirection = getControlDirection(controlPosition);
let node = void 0;
let containerBounds = null;
let childNodes = [];
let parentNode = void 0;
let parentExtent = void 0;
let childExtent = void 0;
const dragHandler = d3Drag.drag().on("start", (event) => {
const { nodeLookup, transform, snapGrid, snapToGrid, nodeOrigin, paneDomNode } = getStoreItems();
node = nodeLookup.get(nodeId);
if (!node) {
return;
}
containerBounds = paneDomNode?.getBoundingClientRect() ?? null;
const { xSnapped, ySnapped } = getPointerPosition(event.sourceEvent, {
transform,
snapGrid,
snapToGrid,
containerBounds
});
prevValues = {
width: node.measured.width ?? 0,
height: node.measured.height ?? 0,
x: node.position.x ?? 0,
y: node.position.y ?? 0
};
startValues = {
...prevValues,
pointerX: xSnapped,
pointerY: ySnapped,
aspectRatio: prevValues.width / prevValues.height
};
parentNode = void 0;
if (node.parentId && (node.extent === "parent" || node.expandParent)) {
parentNode = nodeLookup.get(node.parentId);
parentExtent = parentNode && node.extent === "parent" ? nodeToParentExtent(parentNode) : void 0;
}
childNodes = [];
childExtent = void 0;
for (const [childId, child] of nodeLookup) {
if (child.parentId === nodeId) {
childNodes.push({
id: childId,
position: { ...child.position },
extent: child.extent
});
if (child.extent === "parent" || child.expandParent) {
const extent = nodeToChildExtent(child, node, child.origin ?? nodeOrigin);
if (childExtent) {
childExtent = [
[Math.min(extent[0][0], childExtent[0][0]), Math.min(extent[0][1], childExtent[0][1])],
[Math.max(extent[1][0], childExtent[1][0]), Math.max(extent[1][1], childExtent[1][1])]
];
} else {
childExtent = extent;
}
}
}
}
onResizeStart?.(event, { ...prevValues });
}).on("drag", (event) => {
const { transform, snapGrid, snapToGrid, nodeOrigin: storeNodeOrigin } = getStoreItems();
const pointerPosition = getPointerPosition(event.sourceEvent, {
transform,
snapGrid,
snapToGrid,
containerBounds
});
const childChanges = [];
if (!node) {
return;
}
const { x: prevX, y: prevY, width: prevWidth, height: prevHeight } = prevValues;
const change = {};
const nodeOrigin = node.origin ?? storeNodeOrigin;
const { width, height, x, y } = getDimensionsAfterResize(startValues, controlDirection, pointerPosition, boundaries, keepAspectRatio, nodeOrigin, parentExtent, childExtent);
const isWidthChange = width !== prevWidth;
const isHeightChange = height !== prevHeight;
const isXPosChange = x !== prevX && isWidthChange;
const isYPosChange = y !== prevY && isHeightChange;
if (!isXPosChange && !isYPosChange && !isWidthChange && !isHeightChange) {
return;
}
if (isXPosChange || isYPosChange || nodeOrigin[0] === 1 || nodeOrigin[1] === 1) {
change.x = isXPosChange ? x : prevValues.x;
change.y = isYPosChange ? y : prevValues.y;
prevValues.x = change.x;
prevValues.y = change.y;
if (childNodes.length > 0) {
const xChange = x - prevX;
const yChange = y - prevY;
for (const childNode of childNodes) {
childNode.position = {
x: childNode.position.x - xChange + nodeOrigin[0] * (width - prevWidth),
y: childNode.position.y - yChange + nodeOrigin[1] * (height - prevHeight)
};
childChanges.push(childNode);
}
}
}
if (isWidthChange || isHeightChange) {
change.width = isWidthChange ? width : prevValues.width;
change.height = isHeightChange ? height : prevValues.height;
prevValues.width = change.width;
prevValues.height = change.height;
}
if (parentNode && node.expandParent) {
const xLimit = nodeOrigin[0] * (change.width ?? 0);
if (change.x && change.x < xLimit) {
prevValues.x = xLimit;
startValues.x = startValues.x - (change.x - xLimit);
}
const yLimit = nodeOrigin[1] * (change.height ?? 0);
if (change.y && change.y < yLimit) {
prevValues.y = yLimit;
startValues.y = startValues.y - (change.y - yLimit);
}
}
const direction = getResizeDirection({
width: prevValues.width,
prevWidth,
height: prevValues.height,
prevHeight,
affectsX: controlDirection.affectsX,
affectsY: controlDirection.affectsY
});
const nextValues = { ...prevValues, direction };
const callResize = shouldResize?.(event, nextValues);
if (callResize === false) {
return;
}
onResize?.(event, nextValues);
onChange(change, childChanges);
}).on("end", (event) => {
onResizeEnd?.(event, { ...prevValues });
onEnd?.();
});
selection.call(dragHandler);
}
function destroy() {
selection.on(".drag", null);
}
return {
update,
destroy
};
}
exports.XYDrag = XYDrag;
exports.XYHandle = XYHandle;
exports.XYMinimap = XYMinimap;
exports.XYPanZoom = XYPanZoom;
exports.XYResizer = XYResizer;
exports.XY_RESIZER_HANDLE_POSITIONS = XY_RESIZER_HANDLE_POSITIONS;
exports.XY_RESIZER_LINE_POSITIONS = XY_RESIZER_LINE_POSITIONS;
exports.addEdge = addEdge;
exports.adoptUserNodes = adoptUserNodes;
exports.areConnectionMapsEqual = areConnectionMapsEqual;
exports.boxToRect = boxToRect;
exports.calcAutoPan = calcAutoPan;
exports.calculateNodePosition = calculateNodePosition;
exports.clamp = clamp;
exports.clampPosition = clampPosition;
exports.clampPositionToParent = clampPositionToParent;
exports.createMarkerIds = createMarkerIds;
exports.devWarn = devWarn;
exports.elementSelectionKeys = elementSelectionKeys;
exports.errorMessages = errorMessages;
exports.evaluateAbsolutePosition = evaluateAbsolutePosition;
exports.fitView = fitView;
exports.getBezierEdgeCenter = getBezierEdgeCenter;
exports.getBezierPath = getBezierPath;
exports.getBoundsOfBoxes = getBoundsOfBoxes;
exports.getBoundsOfRects = getBoundsOfRects;
exports.getConnectedEdges = getConnectedEdges;
exports.getConnectionStatus = getConnectionStatus;
exports.getDimensions = getDimensions;
exports.getEdgeCenter = getEdgeCenter;
exports.getEdgePosition = getEdgePosition;
exports.getElementsToRemove = getElementsToRemove;
exports.getElevatedEdgeZIndex = getElevatedEdgeZIndex;
exports.getEventPosition = getEventPosition;
exports.getFitViewNodes = getFitViewNodes;
exports.getHandleBounds = getHandleBounds;
exports.getHandlePosition = getHandlePosition;
exports.getHostForElement = getHostForElement;
exports.getIncomers = getIncomers;
exports.getInternalNodesBounds = getInternalNodesBounds;
exports.getMarkerId = getMarkerId;
exports.getNodeDimensions = getNodeDimensions;
exports.getNodePositionWithOrigin = getNodePositionWithOrigin;
exports.getNodeToolbarTransform = getNodeToolbarTransform;
exports.getNodesBounds = getNodesBounds;
exports.getNodesInside = getNodesInside;
exports.getOutgoers = getOutgoers;
exports.getOverlappingArea = getOverlappingArea;
exports.getPointerPosition = getPointerPosition;
exports.getSmoothStepPath = getSmoothStepPath;
exports.getStraightPath = getStraightPath;
exports.getViewportForBounds = getViewportForBounds;
exports.handleConnectionChange = handleConnectionChange;
exports.handleExpandParent = handleExpandParent;
exports.infiniteExtent = infiniteExtent;
exports.initialConnection = initialConnection;
exports.isCoordinateExtent = isCoordinateExtent;
exports.isEdgeBase = isEdgeBase;
exports.isEdgeVisible = isEdgeVisible;
exports.isInputDOMNode = isInputDOMNode;
exports.isInternalNodeBase = isInternalNodeBase;
exports.isMacOs = isMacOs;
exports.isMouseEvent = isMouseEvent;
exports.isNodeBase = isNodeBase;
exports.isNumeric = isNumeric;
exports.isRectObject = isRectObject;
exports.nodeHasDimensions = nodeHasDimensions;
exports.nodeToBox = nodeToBox;
exports.nodeToRect = nodeToRect;
exports.oppositePosition = oppositePosition;
exports.panBy = panBy;
exports.pointToRendererPoint = pointToRendererPoint;
exports.reconnectEdge = reconnectEdge;
exports.rectToBox = rectToBox;
exports.rendererPointToPoint = rendererPointToPoint;
exports.shallowNodeData = shallowNodeData;
exports.snapPosition = snapPosition;
exports.updateAbsolutePositions = updateAbsolutePositions;
exports.updateConnectionLookup = updateConnectionLookup;
exports.updateNodeInternals = updateNodeInternals;
}));
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