feat: make graph work in div

This commit is contained in:
max_richter 2024-04-10 14:27:23 +02:00
parent 0ecf9798c4
commit 404fcbfe39
22 changed files with 331 additions and 1063 deletions

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@ -4,7 +4,7 @@
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"dev": "vite --host",
"build": "vite build",
"preview": "vite preview",
"tauri:dev": "tauri dev",

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@ -1,5 +1,7 @@
<script lang="ts">
import { animate, lerp, snapToGrid } from "$lib/helpers";
import { LinearSRGBColorSpace } from "three";
import { Canvas } from "@threlte/core";
import type { OrthographicCamera } from "three";
import Background from "../background/Background.svelte";
import type { GraphManager } from "$lib/graph-manager";
@ -26,6 +28,12 @@
const edges = graph.edges;
const graphId = graph.id;
let wrapper: HTMLDivElement;
$: rect =
wrapper && width
? wrapper.getBoundingClientRect()
: { x: 0, y: 0, width: 0, height: 0 };
let camera: OrthographicCamera;
const minZoom = 1;
const maxZoom = 40;
@ -132,6 +140,9 @@
function getNodeIdFromEvent(event: MouseEvent) {
let clickedNodeId = -1;
let mx = event.clientX - rect.x;
let my = event.clientY - rect.y;
if (event.button === 0) {
// check if the clicked element is a node
if (event.target instanceof HTMLElement) {
@ -145,10 +156,7 @@
// if we do not have an active node,
// we are going to check if we clicked on a node by coordinates
if (clickedNodeId === -1) {
const [downX, downY] = projectScreenToWorld(
event.clientX,
event.clientY,
);
const [downX, downY] = projectScreenToWorld(mx, my);
for (const node of $nodes.values()) {
const x = node.position[0];
const y = node.position[1];
@ -243,7 +251,10 @@
}
function handleMouseMove(event: MouseEvent) {
mousePosition = projectScreenToWorld(event.clientX, event.clientY);
let mx = event.clientX - rect.x;
let my = event.clientY - rect.y;
mousePosition = projectScreenToWorld(mx, my);
if (!mouseDown) return;
@ -305,8 +316,8 @@
const oldX = node.tmp.downX || 0;
const oldY = node.tmp.downY || 0;
let newX = oldX + (event.clientX - mouseDown[0]) / cameraPosition[2];
let newY = oldY + (event.clientY - mouseDown[1]) / cameraPosition[2];
let newX = oldX + (mx - mouseDown[0]) / cameraPosition[2];
let newY = oldY + (my - mouseDown[1]) / cameraPosition[2];
if (event.ctrlKey) {
const snapLevel = getSnapLevel();
@ -344,18 +355,18 @@
}
// here we are handling panning of camera
let newX =
cameraDown[0] - (event.clientX - mouseDown[0]) / cameraPosition[2];
let newY =
cameraDown[1] - (event.clientY - mouseDown[1]) / cameraPosition[2];
let newX = cameraDown[0] - (mx - mouseDown[0]) / cameraPosition[2];
let newY = cameraDown[1] - (my - mouseDown[1]) / cameraPosition[2];
setCameraTransform(newX, newY, cameraPosition[2]);
}
const zoomSpeed = 2;
function handleMouseScroll(event: WheelEvent) {
console.log(event);
const bodyIsFocused =
document.activeElement === document.body ||
document.activeElement === wrapper ||
document?.activeElement?.id === "graph";
if (!bodyIsFocused) return;
@ -397,7 +408,10 @@
}
}
mouseDown = [event.clientX, event.clientY];
let mx = event.clientX - rect.x;
let my = event.clientY - rect.y;
mouseDown = [mx, my];
cameraDown[0] = cameraPosition[0];
cameraDown[1] = cameraPosition[1];
@ -720,35 +734,43 @@
});
</script>
<svelte:document
on:mousemove={handleMouseMove}
on:mouseup={handleMouseUp}
on:mousedown={handleMouseDown}
on:keydown={handleKeyDown}
/>
<svelte:window
<div
on:wheel={handleMouseScroll}
bind:innerWidth={width}
bind:innerHeight={height}
/>
bind:this={wrapper}
class="wrapper"
aria-label="Graph"
role="button"
tabindex="0"
bind:clientWidth={width}
bind:clientHeight={height}
on:keydown={handleKeyDown}
on:mousemove={handleMouseMove}
on:mousedown={handleMouseDown}
on:mouseup={handleMouseUp}
>
<Canvas
shadows={false}
renderMode="on-demand"
colorManagementEnabled={false}
colorSpace={LinearSRGBColorSpace}
>
<Camera bind:camera position={cameraPosition} />
<Camera bind:camera position={cameraPosition} />
<Background {cameraPosition} {maxZoom} {minZoom} {width} {height} />
<Background {cameraPosition} {maxZoom} {minZoom} {width} {height} />
{#if boxSelection && mouseDown}
{#if boxSelection && mouseDown}
<BoxSelection
{cameraPosition}
p1={{
x: cameraPosition[0] + (mouseDown[0] - width / 2) / cameraPosition[2],
y: cameraPosition[1] + (mouseDown[1] - height / 2) / cameraPosition[2],
y:
cameraPosition[1] + (mouseDown[1] - height / 2) / cameraPosition[2],
}}
p2={{ x: mousePosition[0], y: mousePosition[1] }}
/>
{/if}
{/if}
{#if $status === "idle"}
{#if $status === "idle"}
{#if addMenuPosition}
<AddMenu bind:position={addMenuPosition} {graph} />
{/if}
@ -761,8 +783,17 @@
{/if}
<GraphView {nodes} {edges} {cameraPosition} />
{:else if $status === "loading"}
{:else if $status === "loading"}
<span>Loading</span>
{:else if $status === "error"}
{:else if $status === "error"}
<span>Error</span>
{/if}
{/if}
</Canvas>
</div>
<style>
.wrapper {
position: relative;
height: 100%;
}
</style>

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@ -0,0 +1,10 @@
<script lang="ts">
import type { GraphManager } from "$lib/graph-manager";
export let manager: GraphManager;
import Graph from "$lib/components/graph/Graph.svelte";
export let debug: any;
</script>
<!-- <PerfMonitor /> -->
<Graph graph={manager} bind:debug />

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@ -0,0 +1,2 @@
import Wrapper from './Wrapper.svelte';
export default Wrapper;

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@ -1,5 +1,5 @@
import { writable, type Writable } from "svelte/store";
import type { Graph, Node, Edge, Socket, NodeRegistry, RuntimeExecutor, } from "@nodes/s";
import type { Graph, Node, Edge, Socket, NodeRegistry, RuntimeExecutor, } from "@nodes/types";
import { HistoryManager } from "./history-manager";
import * as templates from "./graphs";
import EventEmitter from "./helpers/EventEmitter";

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@ -0,0 +1,65 @@
<script lang="ts">
import { getContext } from "svelte";
import type { Writable } from "svelte/store";
let index = -1;
let wrapper: HTMLDivElement;
$: if (index === -1) {
index = getContext<() => number>("registerCell")();
}
const sizes = getContext<Writable<string[]>>("sizes");
let downSizes: string[] = [];
let downWidth = 0;
let mouseDown = false;
let startX = 0;
function handleMouseDown(event: MouseEvent) {
downSizes = [...$sizes];
mouseDown = true;
startX = event.clientX;
downWidth = wrapper.getBoundingClientRect().width;
}
function handleMouseMove(event: MouseEvent) {
if (mouseDown) {
const width = downWidth + startX - event.clientX;
$sizes[index] = `${width}px`;
$sizes = $sizes;
}
}
</script>
<svelte:window
on:mouseup={() => (mouseDown = false)}
on:mousemove={handleMouseMove}
/>
{#if index > 0}
<div
class="seperator"
role="button"
tabindex="0"
on:mousedown={handleMouseDown}
></div>
{/if}
<div class="cell" bind:this={wrapper}>
<slot />
</div>
<style>
.cell {
display: block;
position: relative;
overflow: hidden;
}
.seperator {
background: white;
cursor: ew-resize;
height: 100%;
width: 5px;
}
</style>

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@ -0,0 +1,9 @@
<script lang="ts">
import { setContext } from "svelte";
export let id = "grid-0";
setContext("grid-id", id);
</script>
<slot {id} />

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@ -0,0 +1,33 @@
<script lang="ts">
import { setContext, getContext } from "svelte";
import localStore from "$lib/helpers/localStore";
const gridId = getContext<string>("grid-id");
let sizes = localStore<string[]>(gridId, []);
let registerIndex = 0;
setContext("registerCell", function () {
let index = registerIndex;
registerIndex++;
if (registerIndex > $sizes.length) {
$sizes = [...$sizes, "1fr"];
}
console.log("registering cell", registerIndex);
return index;
});
setContext("sizes", sizes);
$: cols = $sizes.map((size, i) => `${i > 0 ? "5px " : ""}` + size).join(" ");
</script>
<div class="wrapper" style={`grid-template-columns: ${cols};`}>
<slot />
</div>
<style>
.wrapper {
display: grid;
height: 100%;
}
</style>

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@ -0,0 +1,6 @@
import { withSubComponents } from "$lib/helpers";
import Grid from "./Grid.svelte";
import Row from "./Row.svelte";
import Cell from "./Cell.svelte";
export default withSubComponents(Grid, { Row, Cell });

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@ -94,3 +94,14 @@ export const createLogger = (() => {
}
})();
export function withSubComponents<A, B extends Record<string, any>>(
component: A,
subcomponents: B
): A & B {
Object.keys(subcomponents).forEach((key) => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(component as any)[key] = (subcomponents as any)[key];
});
return component as A & B;
}

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@ -0,0 +1,53 @@
import { writable, type Writable } from "svelte/store";
function isStore(v: unknown): v is Writable<unknown> {
return v !== null && typeof v === "object" && "subscribe" in v && "set" in v;
}
const storeIds: Map<string, ReturnType<typeof createLocalStore>> = new Map();
const HAS_LOCALSTORAGE = "localStorage" in globalThis;
function createLocalStore<T>(key: string, initialValue: T | Writable<T>) {
let store: Writable<T>;
if (HAS_LOCALSTORAGE) {
const localValue = localStorage.getItem(key);
const value = localValue ? JSON.parse(localValue) : null;
if (value === null) {
if (isStore(initialValue)) {
store = initialValue;
} else {
store = writable(initialValue);
}
} else {
store = writable(value);
}
} else {
return isStore(initialValue) ? initialValue : writable(initialValue);
}
store.subscribe((value) => {
localStorage.setItem(key, JSON.stringify(value));
});
return {
subscribe: store.subscribe,
set: store.set,
update: store.update
}
}
export default function localStore<T>(key: string, initialValue: T | Writable<T>): Writable<T> {
if (storeIds.has(key)) return storeIds.get(key) as Writable<T>;
const store = createLocalStore(key, initialValue)
storeIds.set(key, store);
return store
}

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@ -14,7 +14,7 @@ const nodeTypes: NodeType[] = [
{
id: "max/plantarium/math",
inputs: {
"op_type": { title: "type", type: "select", labels: ["add", "subtract", "multiply", "divide"], value: 0 },
"op_type": { label: "type", type: "select", labels: ["add", "subtract", "multiply", "divide"], value: 0 },
"a": { type: "float" },
"b": { type: "float" },
},

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@ -1,52 +0,0 @@
export default function makeDomController(domElement: HTMLElement) {
const elementValid = isDomElement(domElement);
if (!elementValid) {
throw new Error(
'panzoom requires DOM element to be attached to the DOM tree',
);
}
const owner = domElement.parentElement;
domElement.scrollTop = 0;
const api = {
getBBox: getBBox,
getOwner: getOwner,
applyTransform: applyTransform,
};
return api;
function getOwner() {
return owner;
}
function getBBox() {
// TODO: We should probably cache this?
return {
left: 0,
top: 0,
width: domElement.clientWidth,
height: domElement.clientHeight,
};
}
function applyTransform(transform: { scale: number; x: number; y: number }) {
// TODO: Should we cache this?
domElement.style.transformOrigin = '0 0 0';
domElement.style.transform =
'matrix(' +
transform.scale +
', 0, 0, ' +
transform.scale +
', ' +
transform.x +
', ' +
transform.y +
')';
}
}
export function isDomElement(element: HTMLElement) {
return element && element.parentElement && element.style;
}

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@ -1,773 +0,0 @@
import type NodeSystemView from '../../view/NodeSystemView';
import makeDomController from './domController';
import kinetic from './kinetic';
interface Bounds {
left: number;
top: number;
right: number;
bottom: number;
}
export interface Transform {
x: number;
y: number;
scale: number;
}
export interface TransformOrigin {
x: number;
y: number;
}
export interface PanZoomController {
getOwner: () => Element;
applyTransform: (transform: Transform) => void;
}
interface PanZoomOptions {
filterKey?: () => boolean;
bounds?: boolean | Bounds;
maxZoom?: number;
minZoom?: number;
boundsPadding?: number;
zoomDoubleClickSpeed?: number;
zoomSpeed?: number;
initialX?: number;
initialY?: number;
initialZoom?: number;
pinchSpeed?: number;
beforeWheel?: (e: WheelEvent) => void;
beforeMouseDown?: (e: MouseEvent) => void;
autocenter?: boolean;
onTouch?: (e: TouchEvent) => void;
onTransform?: (t: Transform) => void;
onDoubleClick?: (e: Event) => void;
smoothScroll?: Record<string, unknown>;
controller?: PanZoomController;
enableTextSelection?: boolean;
disableKeyboardInteraction?: boolean;
transformOrigin?: TransformOrigin;
view?: NodeSystemView;
}
const defaultZoomSpeed = 0.2;
/**
* Creates a new instance of panzoom, so that an object can be panned and zoomed
*
* @param {DOMElement} domElement where panzoom should be attached.
* @param {Object} options that configure behavior.
*/
export function createPanZoom(
domElement: HTMLElement,
options: PanZoomOptions,
) {
const panController = makeDomController(domElement);
const owner = panController.getOwner();
// just to avoid GC pressure, every time we do intermediate transform
// we return this object. For internal use only. Never give it back to the consumer of this library
const storedCTMResult = { x: 0, y: 0 };
let isDirty = false;
const transform = {
x: 0,
y: 0,
scale: 1,
};
// TODO: likely need to unite pinchSpeed with zoomSpeed
const pinchSpeed =
typeof options.pinchSpeed === 'number' ? options.pinchSpeed : 1;
const bounds = options.bounds;
const maxZoom =
typeof options.maxZoom === 'number'
? options.maxZoom
: Number.POSITIVE_INFINITY;
const minZoom = typeof options.minZoom === 'number' ? options.minZoom : 0;
const boundsPadding =
typeof options.boundsPadding === 'number' ? options.boundsPadding : 0.05;
const speed =
typeof options.zoomSpeed === 'number'
? options.zoomSpeed
: defaultZoomSpeed;
let transformOrigin = parseTransformOrigin(options.transformOrigin);
validateBounds(bounds);
let frameAnimation: number;
let touchInProgress = false;
// We only need to fire panstart when actual move happens
let panstartFired = false;
// cache mouse coordinates here
let mouseX: number;
let mouseY: number;
let pinchZoomLength: number;
const smoothScroll = kinetic(getPoint, scroll, options.smoothScroll);
let zoomToAnimation: { cancel: () => void };
let multiTouch: boolean;
let paused = false;
listenForEvents();
const api = {
dispose,
moveBy,
moveTo,
smoothMoveTo,
centerOn,
zoomTo: publicZoomTo,
zoomAbs,
pause,
resume,
isPaused,
getTransform: getTransformModel,
setTransform,
getTransformOrigin,
setTransformOrigin,
};
const initialX =
typeof options.initialX === 'number' ? options.initialX : transform.x;
const initialY =
typeof options.initialY === 'number' ? options.initialY : transform.y;
const initialZoom =
typeof options.initialZoom === 'number'
? options.initialZoom
: transform.scale;
if (
initialX != transform.x ||
initialY != transform.y ||
initialZoom != transform.scale
) {
zoomAbs(initialX, initialY, initialZoom);
}
return api;
function pause() {
releaseEvents();
paused = true;
}
function resume() {
if (paused) {
listenForEvents();
paused = false;
}
}
function isPaused() {
return paused;
}
function transformToScreen(x: number, y: number) {
storedCTMResult.x = x;
storedCTMResult.y = y;
return storedCTMResult;
}
function setTransform(x: number, y: number, s: number) {
transform.x = x;
transform.y = y;
transform.scale = s;
makeDirty();
}
function getTransformModel() {
// TODO: should this be read only?
return transform;
}
function getTransformOrigin() {
return transformOrigin;
}
function setTransformOrigin(newTransformOrigin: TransformOrigin) {
transformOrigin = parseTransformOrigin(newTransformOrigin);
}
function getPoint() {
return {
x: transform.x,
y: transform.y,
};
}
function moveTo(x: number, y: number) {
transform.x = x;
transform.y = y;
keepTransformInsideBounds();
makeDirty();
}
function moveBy(dx: number, dy: number) {
moveTo(transform.x + dx, transform.y + dy);
}
function keepTransformInsideBounds() {
const boundingBox = getBoundingBox();
if (!boundingBox) return;
let adjusted = false;
const clientRect = getClientRect();
let diff = boundingBox.left - clientRect.right;
if (diff > 0) {
transform.x += diff;
adjusted = true;
}
// check the other side:
diff = boundingBox.right - clientRect.left;
if (diff < 0) {
transform.x += diff;
adjusted = true;
}
// y axis:
diff = boundingBox.top - clientRect.bottom;
if (diff > 0) {
// we adjust transform, so that it matches exactly our bounding box:
// transform.y = boundingBox.top - (boundingBox.height + boundingBox.y) * transform.scale =>
// transform.y = boundingBox.top - (clientRect.bottom - transform.y) =>
// transform.y = diff + transform.y =>
transform.y += diff;
adjusted = true;
}
diff = boundingBox.bottom - clientRect.top;
if (diff < 0) {
transform.y += diff;
adjusted = true;
}
return adjusted;
}
/**
* Returns bounding box that should be used to restrict scene movement.
*/
function getBoundingBox() {
if (!bounds) return; // client does not want to restrict movement
if (typeof bounds === 'boolean') {
// for boolean type we use parent container bounds
const ownerRect = owner.getBoundingClientRect();
const sceneWidth = ownerRect.width;
const sceneHeight = ownerRect.height;
return {
left: sceneWidth * boundsPadding,
top: sceneHeight * boundsPadding,
right: sceneWidth * (1 - boundsPadding),
bottom: sceneHeight * (1 - boundsPadding),
};
}
return bounds;
}
function getClientRect() {
const bbox = panController.getBBox();
const leftTop = client(bbox.left, bbox.top);
return {
left: leftTop.x,
top: leftTop.y,
right: bbox.width * transform.scale + leftTop.x,
bottom: bbox.height * transform.scale + leftTop.y,
};
}
function client(x: number, y: number) {
return {
x: x * transform.scale + transform.x,
y: y * transform.scale + transform.y,
};
}
function makeDirty() {
isDirty = true;
frameAnimation = window.requestAnimationFrame(frame);
}
function zoomByRatio(clientX: number, clientY: number, ratio: number) {
if (isNaN(clientX) || isNaN(clientY) || isNaN(ratio)) {
throw new Error('zoom requires valid numbers');
}
const newScale = transform.scale * ratio;
if (newScale < minZoom) {
if (transform.scale === minZoom) return;
ratio = minZoom / transform.scale;
}
if (newScale > maxZoom) {
if (transform.scale === maxZoom) return;
ratio = maxZoom / transform.scale;
}
const size = transformToScreen(clientX, clientY);
transform.x = size.x - ratio * (size.x - transform.x);
transform.y = size.y - ratio * (size.y - transform.y);
// TODO: https://github.com/anvaka/panzoom/issues/112
if (bounds && boundsPadding === 1 && minZoom === 1) {
transform.scale *= ratio;
keepTransformInsideBounds();
} else {
const transformAdjusted = keepTransformInsideBounds();
if (!transformAdjusted) transform.scale *= ratio;
}
makeDirty();
}
function zoomAbs(clientX: number, clientY: number, zoomLevel: number) {
const ratio = zoomLevel / transform.scale;
zoomByRatio(clientX, clientY, ratio);
}
function centerOn(ui: SVGElement) {
const parent = ui.ownerSVGElement;
if (!parent)
throw new Error('ui element is required to be within the scene');
// TODO: should i use controller's screen CTM?
const clientRect = ui.getBoundingClientRect();
const cx = clientRect.left + clientRect.width / 2;
const cy = clientRect.top + clientRect.height / 2;
const container = parent.getBoundingClientRect();
const dx = container.width / 2 - cx;
const dy = container.height / 2 - cy;
internalMoveBy(dx, dy);
}
function smoothMoveTo(x: number, y: number) {
internalMoveBy(x - transform.x, y - transform.y);
}
function internalMoveBy(dx: number, dy: number) {
return moveBy(dx, dy);
}
function scroll(x: number, y: number) {
cancelZoomAnimation();
moveTo(x, y);
}
function dispose() {
releaseEvents();
}
function listenForEvents() {
owner.addEventListener('mousedown', onMouseDown, { passive: true });
owner.addEventListener('dblclick', onDoubleClick, { passive: false });
owner.addEventListener('touchstart', onTouch, { passive: true });
owner.addEventListener('keydown', onKeyDown);
// Need to listen on the owner container, so that we are not limited
// by the size of the scrollable domElement
owner.addEventListener('wheel', onMouseWheel, { passive: true });
makeDirty();
}
function releaseEvents() {
owner.removeEventListener('wheel', onMouseWheel);
owner.removeEventListener('mousedown', onMouseDown);
owner.removeEventListener('keydown', onKeyDown);
owner.removeEventListener('dblclick', onDoubleClick);
owner.removeEventListener('touchstart', onTouch);
if (frameAnimation) {
window.cancelAnimationFrame(frameAnimation);
frameAnimation = 0;
}
smoothScroll.cancel();
releaseDocumentMouse();
releaseTouches();
triggerPanEnd();
}
function frame() {
if (isDirty) applyTransform();
}
function applyTransform() {
isDirty = false;
// TODO: Should I allow to cancel this?
panController.applyTransform(transform);
frameAnimation = 0;
if (options.onTransform) {
options.onTransform(transform);
}
}
function onKeyDown(e: KeyboardEvent) {
// let x = 0,
// y = 0,
let z = 0;
if (e.key === 'ArrowUp') {
// y = 1; // up
} else if (e.key === 'ArrowDown') {
// y = -1; // down
} else if (e.key === 'ArrowLeft') {
// x = 1; // left
} else if (e.key === 'ArrowRigh') {
// x = -1; // right
} else if (e.key === '-') {
// DASH or SUBTRACT
z = 1; // `-` - zoom out
} else if (e.key === '=' || e.key === '+') {
// EQUAL SIGN or ADD
z = -1; // `=` - zoom in (equal sign on US layout is under `+`)
}
if (z) {
const scaleMultiplier = getScaleMultiplier(z * 100);
const offset = transformOrigin ? getTransformOriginOffset() : midPoint();
publicZoomTo(offset.x, offset.y, scaleMultiplier);
}
}
function midPoint() {
const ownerRect = owner.getBoundingClientRect();
return {
x: ownerRect.width / 2,
y: ownerRect.height / 2,
};
}
function onTouch(e: TouchEvent) {
// let the override the touch behavior
beforeTouch(e);
if (e.touches.length === 1) {
return handleSingleFingerTouch(e);
} else if (e.touches.length === 2) {
// handleTouchMove() will care about pinch zoom.
pinchZoomLength = getPinchZoomLength(e.touches[0], e.touches[1]);
multiTouch = true;
startTouchListenerIfNeeded();
}
}
function beforeTouch(e: TouchEvent) {
e.stopPropagation();
e.preventDefault();
}
function beforeDoubleClick(e: MouseEvent) {
e.preventDefault();
e.stopPropagation();
}
function handleSingleFingerTouch(e: TouchEvent) {
const touch = e.touches[0];
const offset = getOffsetXY(touch);
const point = transformToScreen(offset.x, offset.y);
mouseX = point.x;
mouseY = point.y;
smoothScroll.cancel();
startTouchListenerIfNeeded();
}
function startTouchListenerIfNeeded() {
if (touchInProgress) {
// no need to do anything, as we already listen to events;
return;
}
touchInProgress = true;
document.addEventListener('touchmove', handleTouchMove);
document.addEventListener('touchend', handleTouchEnd);
document.addEventListener('touchcancel', handleTouchEnd);
}
function handleTouchMove(e: TouchEvent) {
if (e.touches.length === 1) {
e.stopPropagation();
const touch = e.touches[0];
const offset = getOffsetXY(touch);
const point = transformToScreen(offset.x, offset.y);
const dx = point.x - mouseX;
const dy = point.y - mouseY;
if (dx !== 0 && dy !== 0) {
triggerPanStart();
}
mouseX = point.x;
mouseY = point.y;
internalMoveBy(dx, dy);
} else if (e.touches.length === 2) {
// it's a zoom, let's find direction
multiTouch = true;
const t1 = e.touches[0];
const t2 = e.touches[1];
const currentPinchLength = getPinchZoomLength(t1, t2);
// since the zoom speed is always based on distance from 1, we need to apply
// pinch speed only on that distance from 1:
const scaleMultiplier =
1 + (currentPinchLength / pinchZoomLength - 1) * pinchSpeed;
const firstTouchPoint = getOffsetXY(t1);
const secondTouchPoint = getOffsetXY(t2);
mouseX = (firstTouchPoint.x + secondTouchPoint.x) / 2;
mouseY = (firstTouchPoint.y + secondTouchPoint.y) / 2;
if (transformOrigin) {
const offset = getTransformOriginOffset();
mouseX = offset.x;
mouseY = offset.y;
}
publicZoomTo(mouseX, mouseY, scaleMultiplier);
pinchZoomLength = currentPinchLength;
e.stopPropagation();
e.preventDefault();
}
}
function handleTouchEnd(e: TouchEvent) {
if (e.touches.length > 0) {
const offset = getOffsetXY(e.touches[0]);
const point = transformToScreen(offset.x, offset.y);
mouseX = point.x;
mouseY = point.y;
}
}
function getPinchZoomLength(finger1: Touch, finger2: Touch) {
const dx = finger1.clientX - finger2.clientX;
const dy = finger1.clientY - finger2.clientY;
return Math.sqrt(dx * dx + dy * dy);
}
function onDoubleClick(e: MouseEvent) {
beforeDoubleClick(e);
}
function onMouseDown(e: MouseEvent) {
if (touchInProgress) {
// modern browsers will fire mousedown for touch events too
// we do not want this: touch is handled separately.
e.stopPropagation();
return false;
}
if (e.target !== owner && e.target !== domElement) return;
// for IE, left click == 1
// for Firefox, left click == 0
const isLeftButton =
(e.button === 1 && window.event !== null) || e.button === 0;
if (!isLeftButton) return;
smoothScroll.cancel();
const offset = getOffsetXY(e);
const point = transformToScreen(offset.x, offset.y);
mouseX = point.x;
mouseY = point.y;
// We need to listen on document itself, since mouse can go outside of the
// window, and we will loose it
document.addEventListener('mousemove', onMouseMove);
document.addEventListener('mouseup', onMouseUp);
return false;
}
function onMouseMove(e: MouseEvent) {
// no need to worry about mouse events when touch is happening
if (touchInProgress) return;
if (e.ctrlKey) return;
triggerPanStart();
const offset = getOffsetXY(e);
const point = transformToScreen(offset.x, offset.y);
const dx = point.x - mouseX;
const dy = point.y - mouseY;
mouseX = point.x;
mouseY = point.y;
internalMoveBy(dx, dy);
}
function onMouseUp() {
triggerPanEnd();
releaseDocumentMouse();
}
function releaseDocumentMouse() {
document.removeEventListener('mousemove', onMouseMove);
document.removeEventListener('mouseup', onMouseUp);
panstartFired = false;
}
function releaseTouches() {
document.removeEventListener('touchmove', handleTouchMove);
document.removeEventListener('touchend', handleTouchEnd);
document.removeEventListener('touchcancel', handleTouchEnd);
panstartFired = false;
multiTouch = false;
touchInProgress = false;
}
function onMouseWheel(e: WheelEvent) {
smoothScroll.cancel();
let delta = e.deltaY;
if (e.deltaMode > 0) delta *= 100;
const scaleMultiplier = getScaleMultiplier(delta);
if (scaleMultiplier !== 1) {
const offset = transformOrigin
? getTransformOriginOffset()
: getOffsetXY(e);
publicZoomTo(offset.x, offset.y, scaleMultiplier);
}
}
function getOffsetXY(e: MouseEvent | Touch) {
// let offsetX, offsetY;
// I tried using e.offsetX, but that gives wrong results for svg, when user clicks on a path.
const ownerRect = owner.getBoundingClientRect();
const offsetX = e.clientX - ownerRect.left;
const offsetY = e.clientY - ownerRect.top;
return { x: offsetX, y: offsetY };
}
function getTransformOriginOffset() {
const ownerRect = owner.getBoundingClientRect();
return {
x: ownerRect.width * transformOrigin.x,
y: ownerRect.height * transformOrigin.y,
};
}
function publicZoomTo(
clientX: number,
clientY: number,
scaleMultiplier: number,
) {
smoothScroll.cancel();
cancelZoomAnimation();
return zoomByRatio(clientX, clientY, scaleMultiplier);
}
function cancelZoomAnimation() {
if (zoomToAnimation) {
zoomToAnimation.cancel();
zoomToAnimation = null;
}
}
function getScaleMultiplier(delta: number) {
const sign = Math.sign(delta);
const deltaAdjustedSpeed = Math.min(0.25, Math.abs((speed * delta) / 128));
return 1 - sign * deltaAdjustedSpeed;
}
function triggerPanStart() {
if (!panstartFired) {
panstartFired = true;
smoothScroll.start();
}
}
function triggerPanEnd() {
if (panstartFired) {
// we should never run smooth scrolling if it was multiTouch (pinch zoom animation):
if (!multiTouch) smoothScroll.stop();
}
}
}
function parseTransformOrigin(options: TransformOrigin) {
if (!options) return;
if (typeof options === 'object') {
if (!isNumber(options.x) || !isNumber(options.y)) failTransformOrigin();
return options;
}
failTransformOrigin();
}
function failTransformOrigin() {
throw new Error(
[
'Cannot parse transform origin.',
'Some good examples:',
' "center center" can be achieved with {x: 0.5, y: 0.5}',
' "top center" can be achieved with {x: 0.5, y: 0}',
' "bottom right" can be achieved with {x: 1, y: 1}',
].join('\n'),
);
}
function validateBounds(bounds: boolean | Bounds) {
if (!bounds) return;
if (typeof bounds === 'boolean') return; // this is okay
// otherwise need to be more thorough:
const validBounds =
isNumber(bounds.left) &&
isNumber(bounds.top) &&
isNumber(bounds.bottom) &&
isNumber(bounds.right);
if (!validBounds)
throw new Error(
'Bounds object is not valid. It can be: ' +
'undefined, boolean (true|false) or an object {left, top, right, bottom}',
);
}
function isNumber(x: number) {
return Number.isFinite(x);
}
// IE 11 does not support isNaN:
function isNaN(value: unknown) {
if (Number.isNaN) {
return Number.isNaN(value);
}
return value !== value;
}

View File

@ -1,146 +0,0 @@
/**
* Allows smooth kinetic scrolling of the surface
*/
export default function kinetic(
getPoint: () => { x: number; y: number },
scroll: (x: number, y: number) => void,
settings: Record<string, unknown>,
) {
if (typeof settings !== 'object') {
// setting could come as boolean, we should ignore it, and use an object.
settings = {};
}
const minVelocity =
typeof settings.minVelocity === 'number' ? settings.minVelocity : 5;
const amplitude =
typeof settings.amplitude === 'number' ? settings.amplitude : 0.25;
const cancelAnimationFrame =
typeof settings.cancelAnimationFrame === 'function'
? settings.cancelAnimationFrame
: getCancelAnimationFrame();
const requestAnimationFrame =
typeof settings.requestAnimationFrame === 'function'
? settings.requestAnimationFrame
: getRequestAnimationFrame();
let lastPoint: { x: number; y: number };
let timestamp: number;
const timeConstant = 342;
let ticker: unknown;
let vx: number, targetX: number, ax: number;
let vy: number, targetY: number, ay: number;
let raf: unknown;
return {
start: start,
stop: stop,
cancel: dispose,
};
function dispose() {
cancelAnimationFrame(ticker);
cancelAnimationFrame(raf);
}
function start() {
lastPoint = getPoint();
ax = ay = vx = vy = 0;
timestamp = Date.now();
cancelAnimationFrame(ticker);
cancelAnimationFrame(raf);
// we start polling the point position to accumulate velocity
// Once we stop(), we will use accumulated velocity to keep scrolling
// an object.
ticker = requestAnimationFrame(track);
}
function track() {
const now = Date.now();
const elapsed = now - timestamp;
timestamp = now;
const currentPoint = getPoint();
const dx = currentPoint.x - lastPoint.x;
const dy = currentPoint.y - lastPoint.y;
lastPoint = currentPoint;
const dt = 1000 / (1 + elapsed);
// moving average
vx = 0.8 * dx * dt + 0.2 * vx;
vy = 0.8 * dy * dt + 0.2 * vy;
ticker = requestAnimationFrame(track);
}
function stop() {
cancelAnimationFrame(ticker);
cancelAnimationFrame(raf);
const currentPoint = getPoint();
targetX = currentPoint.x;
targetY = currentPoint.y;
timestamp = Date.now();
if (vx < -minVelocity || vx > minVelocity) {
ax = amplitude * vx;
targetX += ax;
}
if (vy < -minVelocity || vy > minVelocity) {
ay = amplitude * vy;
targetY += ay;
}
raf = requestAnimationFrame(autoScroll);
}
function autoScroll() {
const elapsed = Date.now() - timestamp;
let moving = false;
let dx = 0;
let dy = 0;
if (ax) {
dx = -ax * Math.exp(-elapsed / timeConstant);
if (dx > 0.5 || dx < -0.5) moving = true;
else dx = ax = 0;
}
if (ay) {
dy = -ay * Math.exp(-elapsed / timeConstant);
if (dy > 0.5 || dy < -0.5) moving = true;
else dy = ay = 0;
}
if (moving) {
scroll(targetX + dx, targetY + dy);
raf = requestAnimationFrame(autoScroll);
}
}
}
function getCancelAnimationFrame() {
if (typeof cancelAnimationFrame === 'function') return cancelAnimationFrame;
return clearTimeout;
}
function getRequestAnimationFrame() {
if (typeof requestAnimationFrame === 'function') return requestAnimationFrame;
return function (handler: () => void) {
return setTimeout(handler, 16);
};
}

View File

@ -1,15 +1,14 @@
<script lang="ts">
import { Canvas } from "@threlte/core";
import Grid from "$lib/grid";
import Graph from "$lib/components/graph";
import { GraphManager } from "$lib/graph-manager";
import Graph from "$lib/components/graph/Graph.svelte";
import { MemoryRuntimeExecutor } from "$lib/runtime-executor";
import { MemoryNodeRegistry, RemoteNodeRegistry } from "$lib/node-registry";
import { LinearSRGBColorSpace } from "three";
import Details from "$lib/components/Details.svelte";
import { JsonView } from "@zerodevx/svelte-json-view";
const memNodeRegistry = new MemoryNodeRegistry();
const nodeRegistry = new RemoteNodeRegistry("http://localhost:5174");
const nodeRegistry = new RemoteNodeRegistry("http://localhost:3001");
const runtimeExecutor = new MemoryRuntimeExecutor(nodeRegistry);
@ -29,7 +28,7 @@
let debug: undefined;
</script>
<div class="wrapper">
<div class="details-wrapper">
<Details>
<button
on:click={() => graphManager.load(graphManager.createTemplate("tree", 5))}
@ -53,24 +52,30 @@
</Details>
</div>
<div id="canvas-wrapper">
<Canvas
shadows={false}
renderMode="on-demand"
colorManagementEnabled={false}
colorSpace={LinearSRGBColorSpace}
>
<!-- <PerfMonitor /> -->
<Graph graph={graphManager} bind:debug />
</Canvas>
<div class="wrapper">
<header>header</header>
<Grid.Row>
<Grid.Cell></Grid.Cell>
<Grid.Cell>
<Graph manager={graphManager} />
</Grid.Cell>
</Grid.Row>
</div>
<style>
#canvas-wrapper {
height: 100vh;
header {
border-bottom: solid thin white;
}
.wrapper {
height: 100vh;
width: 100vw;
color: white;
display: grid;
grid-template-rows: 50px 1fr;
}
.details-wrapper {
position: absolute;
z-index: 100;
top: 10px;
@ -89,7 +94,5 @@
:global(body) {
margin: 0;
position: relative;
width: 100vw;
height: 100vh;
}
</style>

View File

@ -59,6 +59,10 @@ body.theme-catppuccin {
--background-color-darker: #11111b;
}
body {
margin: 0;
}
/* canvas { */
/* display: none !important; */
/* } */

View File

@ -5,6 +5,11 @@ import wasm from "vite-plugin-wasm";
export default defineConfig({
plugins: [sveltekit(), glsl(), wasm()],
server: {
port: 8080,
},
ssr: {
noExternal: ['three'],
}

View File

@ -1,5 +1,6 @@
{
"scripts": {
"build:nodes": "pnpm -r --filter './nodes/**' build"
"build:nodes": "pnpm -r --filter './nodes/**' build",
"dev": "pnpm -r --filter 'app' --filter './packages/node-registry' dev"
}
}

View File

@ -7,6 +7,8 @@ const config = {
// for more information about preprocessors
preprocess: vitePreprocess(),
kit: {
// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
// If your environment is not supported or you settled on a specific environment, switch out the adapter.

View File

@ -4,6 +4,10 @@ import wasm from 'vite-plugin-wasm';
export default defineConfig({
plugins: [sveltekit(), wasm()],
server: {
port: 3001,
},
test: {
include: ['src/**/*.{test,spec}.{js,ts}']
}