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simplified handleExpandParent, removed isParent, improved some functions

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This commit is contained in:
peterkogo
2024-04-16 16:54:38 +02:00
parent 714d30b63f
commit aad6de5359
9 changed files with 101 additions and 91 deletions
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packages/system/src/types/nodes.ts
-2
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@@ -73,8 +73,6 @@ export type InternalNodeBase<NodeType extends NodeBase = NodeBase> = NodeType &
internals: {
positionAbsolute: XYPosition;
z: number;
// @todo should we rename this to "handles" and use same type as node.handles?
isParent: boolean;
/** Holds a reference to the original node object provided by the user.
* Used as an optimization to avoid certain operations. */
userNode: NodeType;
packages/system/src/utils/general.ts
+10 -8
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@@ -222,25 +222,27 @@ export function nodeHasDimensions<NodeType extends NodeBase = NodeBase>(node: No
}
/**
* Helper to calculate the absolute position of a node
* Convert child position to aboslute position
*
* @internal
* @param node
* @param position
* @param parentId
* @param nodeLookup
* @param nodeOrigin
* @returns an internal node with an absolute position
*/
export function evaluateNodePosition(
node: NodeBase | InternalNodeBase,
export function evaluateAbsolutePosition(
position: XYPosition,
parentId: string,
nodeLookup: NodeLookup,
nodeOrigin: NodeOrigin = [0, 0]
): XYPosition {
let parentId = node.parentId;
const positionAbsolute = { ...node.position };
let nextParentId: string | undefined = parentId;
const positionAbsolute = { ...position };
while (parentId) {
while (nextParentId) {
const parent = nodeLookup.get(parentId);
parentId = parent?.parentId;
nextParentId = parent?.parentId;
if (parent) {
const origin = parent.origin || nodeOrigin;
packages/system/src/utils/store.ts
+43 -40
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@@ -20,6 +20,7 @@ import {
import { getDimensions, getHandleBounds } from './dom';
import { getBoundsOfRects, getNodeDimensions, isNumeric, nodeToRect } from './general';
import { getNodePositionWithOrigin } from './graph';
import { ParentExpandChild } from './types';
export function updateAbsolutePositions<NodeType extends NodeBase>(
nodeLookup: Map<string, InternalNodeBase<NodeType>>,
@@ -27,42 +28,41 @@ export function updateAbsolutePositions<NodeType extends NodeBase>(
nodeOrigin: [0, 0] as NodeOrigin,
elevateNodesOnSelect: true,
defaults: {},
},
parentLookup?: Map<string, InternalNodeBase<NodeType>[]>
}
) {
const selectedNodeZ: number = options?.elevateNodesOnSelect ? 1000 : 0;
for (const [id, node] of nodeLookup) {
for (const [, node] of nodeLookup) {
const parentId = node.parentId;
if (parentId && !nodeLookup.has(parentId)) {
if (!parentId) {
continue;
}
if (!nodeLookup.has(parentId)) {
throw new Error(`Parent node ${parentId} not found`);
}
if (parentId || node.internals.isParent || parentLookup?.has(id)) {
const parentNode = parentId ? nodeLookup.get(parentId) : null;
const { x, y, z } = calculateXYZPosition(
node,
nodeLookup,
{
...node.position,
z: (isNumeric(node.zIndex) ? node.zIndex : 0) + (node.selected ? selectedNodeZ : 0),
},
parentNode?.origin ?? options.nodeOrigin
);
const parentNode = nodeLookup.get(parentId);
const { x, y, z } = calculateXYZPosition(
node,
nodeLookup,
{
...node.position,
z: (isNumeric(node.zIndex) ? node.zIndex : 0) + (node.selected ? selectedNodeZ : 0),
},
parentNode?.origin ?? options.nodeOrigin
);
const currPosition = node.internals.positionAbsolute;
const positionChanged = x !== currPosition.x || y !== currPosition.y;
const currPosition = node.internals.positionAbsolute;
const positionChanged = x !== currPosition.x || y !== currPosition.y;
if (positionChanged || z !== node.internals.z) {
node.internals = {
...node.internals,
positionAbsolute: positionChanged ? { x, y } : currPosition,
z,
};
if (parentLookup !== undefined) {
node.internals.isParent = !!parentLookup.has(id);
}
}
}
}
@@ -111,7 +111,6 @@ export function adoptUserNodes<NodeType extends NodeBase>(
handleBounds: currentStoreNode?.internals.handleBounds,
z: (isNumeric(userNode.zIndex) ? userNode.zIndex : 0) + (userNode.selected ? selectedNodeZ : 0),
userNode,
isParent: false,
},
};
nodeLookup.set(userNode.id, internalNode);
@@ -128,7 +127,7 @@ export function adoptUserNodes<NodeType extends NodeBase>(
});
if (parentLookup.size > 0) {
updateAbsolutePositions(nodeLookup, options, parentLookup);
updateAbsolutePositions(nodeLookup, options);
}
}
@@ -157,30 +156,30 @@ function calculateXYZPosition<NodeType extends NodeBase>(
);
}
type ExpandParentNode<NodeType> = NodeType & { parentId: string; expandParent: true };
export function handleExpandParent(
nodes: ExpandParentNode<InternalNodeBase>[],
children: ParentExpandChild[],
nodeLookup: NodeLookup,
parentLookup: ParentLookup
parentLookup: ParentLookup,
nodeOrigin?: NodeOrigin
): (NodeDimensionChange | NodePositionChange)[] {
const changes: (NodeDimensionChange | NodePositionChange)[] = [];
const childNodeRects = new Map<string, { expandedRect: Rect; parent: InternalNodeBase }>();
const parentExpansions = new Map<string, { expandedRect: Rect; parent: InternalNodeBase }>();
// determine the expanded rectangle the child nodes would take for each parent
for (const node of nodes) {
const parent = nodeLookup.get(node.parentId);
for (const child of children) {
const parent = nodeLookup.get(child.parentId);
if (!parent) {
continue;
}
const parentRect = childNodeRects.get(node.parentId)?.expandedRect ?? nodeToRect(parent, node.origin);
const expandedRect = getBoundsOfRects(parentRect, nodeToRect(node, node.origin));
childNodeRects.set(node.parentId, { expandedRect, parent });
const parentRect =
parentExpansions.get(child.parentId)?.expandedRect ?? nodeToRect(parent, parent.origin ?? nodeOrigin);
const expandedRect = getBoundsOfRects(parentRect, child.rect);
parentExpansions.set(child.parentId, { expandedRect, parent });
}
if (childNodeRects.size > 0) {
childNodeRects.forEach(({ expandedRect, parent }, parentId) => {
if (parentExpansions.size > 0) {
parentExpansions.forEach(({ expandedRect, parent }, parentId) => {
// determine the position & dimensions of the parent
const { position } = getNodePositionWithOrigin(parent, parent.origin);
const dimensions = getNodeDimensions(parent);
@@ -202,7 +201,7 @@ export function handleExpandParent(
// so the x,y changes of the parent do not move the children
const childNodes = parentLookup.get(parentId);
childNodes?.forEach((childNode) => {
if (!nodes.some((n) => n.id === childNode.id)) {
if (!children.some((child) => child.id === childNode.id)) {
changes.push({
id: childNode.id,
type: 'position',
@@ -250,7 +249,7 @@ export function updateNodeInternals<NodeType extends InternalNodeBase>(
const style = window.getComputedStyle(viewportNode);
const { m22: zoom } = new window.DOMMatrixReadOnly(style.transform);
// in this array we collect nodes, that might trigger changes (like expanding parent)
const parentExpandNodes: ExpandParentNode<NodeType>[] = [];
const parentExpandChildren: ParentExpandChild[] = [];
updates.forEach((update) => {
const node = nodeLookup.get(update.id);
@@ -297,15 +296,19 @@ export function updateNodeInternals<NodeType extends InternalNodeBase>(
});
if (newNode.expandParent && newNode.parentId) {
parentExpandNodes.push(newNode as ExpandParentNode<NodeType>);
parentExpandChildren.push({
id: newNode.id,
parentId: newNode.parentId,
rect: nodeToRect(newNode, newNode.origin || nodeOrigin),
});
}
}
}
}
});
if (parentExpandNodes.length > 0) {
const parentExpandChanges = handleExpandParent(parentExpandNodes, nodeLookup, parentLookup);
if (parentExpandChildren.length > 0) {
const parentExpandChanges = handleExpandParent(parentExpandChildren, nodeLookup, parentLookup, nodeOrigin);
changes.push(...parentExpandChanges);
}
packages/system/src/utils/types.ts
+4
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@@ -1 +1,5 @@
import { Rect } from '../types';
export type Optional<T, K extends keyof T> = Pick<Partial<T>, K> & Omit<T, K>;
export type ParentExpandChild = { id: string; parentId: string; rect: Rect };