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Rewrite of central components to svelte 5, code is working

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This commit is contained in:
Stephan Egli 2025-01-17 13:02:56 +01:00
parent f8d3f528a5
commit 9400cc6a41
9 changed files with 444 additions and 153 deletions
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14
index.html
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@ -9,19 +9,7 @@
</head> </head>
<body> <body>
<div id="app"></div>
<!-- Bereich für Buttons, um neue Formen anzulegen -->
<div id="controls">
<button id="addCircleButton">Kreis hinzufügen</button>
<button id="addTriangleButton">Dreieck hinzufügen</button>
</div>
<!-- Canvas, auf dem wir die Formen zeichnen -->
<svg id="shapesCanvas" width="800" height="600"
style="border: 1px solid black;"
xmlns="http://www.w3.org/2000/svg"
version="1.1">
</svg>
<script type="module" src="/src/main.ts"></script> <script type="module" src="/src/main.ts"></script>
</body> </body>

264
package-lock.json generated
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@ -11,13 +11,40 @@
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"@automerge/automerge-repo-network-websocket": "^1.2.1", "@automerge/automerge-repo-network-websocket": "^1.2.1",
"@automerge/automerge-repo-storage-indexeddb": "^1.2.1", "@automerge/automerge-repo-storage-indexeddb": "^1.2.1",
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@ -558,6 +585,30 @@
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@ -567,6 +618,15 @@
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@ -859,6 +919,46 @@
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@ -1103,13 +1203,12 @@
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@ -1124,6 +1223,15 @@
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@ -1198,6 +1324,15 @@
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@ -1221,6 +1356,16 @@
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@ -1306,6 +1466,15 @@
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@ -1315,6 +1484,31 @@
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@ -1441,6 +1635,31 @@
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"tsserver": "bin/tsserver" "tsserver": "bin/tsserver"
@ -1505,11 +1723,10 @@
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@ -1637,6 +1854,25 @@
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@ -1676,6 +1912,12 @@
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} }
} }

6
package.json
View File

@ -9,14 +9,16 @@
"preview": "vite preview" "preview": "vite preview"
}, },
"devDependencies": { "devDependencies": {
"vite": "^6.0.5", "@sveltejs/vite-plugin-svelte": "^5.0.3",
"@types/node": "^20.0.0",
"typescript": "^5.0.0", "typescript": "^5.0.0",
"@types/node": "^20.0.0" "vite": "^6.0.5"
}, },
"dependencies": { "dependencies": {
"@automerge/automerge-repo": "^1.2.1", "@automerge/automerge-repo": "^1.2.1",
"@automerge/automerge-repo-network-websocket": "^1.2.1", "@automerge/automerge-repo-network-websocket": "^1.2.1",
"@automerge/automerge-repo-storage-indexeddb": "^1.2.1", "@automerge/automerge-repo-storage-indexeddb": "^1.2.1",
"svelte": "^5.0.0-next.272",
"vite-plugin-top-level-await": "^1.4.4", "vite-plugin-top-level-await": "^1.4.4",
"vite-plugin-wasm": "^3.4.1" "vite-plugin-wasm": "^3.4.1"
} }

116
src/components/Canvas.svelte Normal file
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@ -0,0 +1,116 @@
<script lang="ts">
import Circle from './shapes/Circle.svelte';
import Triangle from './shapes/Triangle.svelte';
import type { Shape } from '../types';
import type { DocHandle } from "@automerge/automerge-repo";
import type { AppDocument } from '../types';
import { updateDocWithNewCircle, updateDocWithNewTriangle, updateDocWithShapeMove } from '../docManager';
const { handle } = $props<{
handle: DocHandle<AppDocument>;
}>();
let shapes = $state<Shape[]>([]);
let draggedShape = $state<{ id: string, startX: number, startY: number } | null>(null);
// Automerge document subscription
$effect(() => {
const doc = handle.docSync();
if (doc) {
shapes = doc.shapes;
}
});
handle.on("change", ({ doc }) => {
if (doc) {
shapes = doc.shapes;
}
});
function handleDragStart(e: MouseEvent, shape: Shape) {
const svg = document.getElementById('shapesCanvas') as SVGSVGElement;
if (!svg) return;
const point = svg.createSVGPoint();
point.x = e.clientX;
point.y = e.clientY;
const { x, y } = point.matrixTransform(svg.getScreenCTM()!.inverse());
draggedShape = { id: String(shape.id), startX: x, startY: y };
}
function handleDragMove(e: MouseEvent) {
if (!draggedShape) return;
const svg = document.getElementById('shapesCanvas') as SVGSVGElement;
if (!svg) return;
const point = svg.createSVGPoint();
point.x = e.clientX;
point.y = e.clientY;
const { x, y } = point.matrixTransform(svg.getScreenCTM()!.inverse());
updateDocWithShapeMove(draggedShape.id, x, y);
}
function addTestCircle() {
updateDocWithNewCircle(100, 100, 30);
}
function addTestTriangle() {
updateDocWithNewTriangle(200, 200, 220, 220, 180, 220);
}
</script>
<div class="container">
<svg
id="shapesCanvas"
viewBox="0 0 800 600"
on:mouseup={() => draggedShape = null}
on:mousemove={handleDragMove}
>
{#each shapes as shape (shape.id)}
{#if shape.type === 'circle'}
<Circle
id={String(shape.id)}
x={shape.x}
y={shape.y}
radius={shape.radius}
color={shape.color}
on:mousedown={(e: MouseEvent) => handleDragStart(e, shape)}
/>
{:else if shape.type === 'triangle'}
<Triangle
id={String(shape.id)}
coordinates={shape.coordinates.map(c => [c.x, c.y]).flat() as [number, number, number, number, number, number]}
color={shape.color}
on:mousedown={(e: MouseEvent) => handleDragStart(e, shape)}
/>
{/if}
{/each}
</svg>
<div class="controls">
<button on:click={addTestCircle}>Add Circle</button>
<button on:click={addTestTriangle}>Add Triangle</button>
</div>
</div>
<style>
.container {
width: 100%;
height: 100vh;
position: relative;
}
svg {
width: 100%;
height: 100%;
}
.controls {
position: absolute;
top: 10px;
left: 10px;
}
</style>

18
src/components/shapes/Circle.svelte Normal file
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@ -0,0 +1,18 @@
<script lang="ts">
const { id, x, y, radius, color } = $props<{
id: string;
x: number;
y: number;
radius: number;
color: string;
}>();
</script>
<circle
{id}
cx={x}
cy={y}
r={radius}
fill={color}
on:mousedown
/>

19
src/components/shapes/Triangle.svelte Normal file
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@ -0,0 +1,19 @@
<script lang="ts">
const { id, coordinates, color } = $props<{
id: string;
coordinates: [number, number, number, number, number, number];
color: string;
}>();
let points = $state(coordinates.join(' '));
$effect(() => {
points = coordinates.join(' ');
});
</script>
<polygon
{id}
{points}
fill={color}
on:mousedown
/>

28
src/docManager.ts
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@ -19,26 +19,21 @@ export async function initRepo(): Promise<DocHandle<AppDocument>> {
if (rootDocUrl && isValidAutomergeUrl(rootDocUrl)) { if (rootDocUrl && isValidAutomergeUrl(rootDocUrl)) {
handle = repo.find<AppDocument>(rootDocUrl); handle = repo.find<AppDocument>(rootDocUrl);
await handle.whenReady();
handle.change((doc: AppDocument) => {
if (!doc.schemaVersion) {
doc.schemaVersion = 1;
}
});
} else { } else {
handle = repo.create<AppDocument>({ handle = repo.create<AppDocument>();
schemaVersion: CURRENT_SCHEMA_VERSION, handle.change((doc: AppDocument) => {
shapes: [] doc.schemaVersion = CURRENT_SCHEMA_VERSION;
doc.shapes = [];
}); });
await handle.whenReady();
document.location.hash = handle.url; document.location.hash = handle.url;
} }
await handle.whenReady();
return handle; return handle;
} }
export const updateDocWithNewCircle = (x: number, y: number, radius: number) => { export function updateDocWithNewCircle(x: number, y: number, radius: number): void {
console.log('Adding circle:', { x, y, radius }); // Debug log
handle.change((doc: AppDocument) => { handle.change((doc: AppDocument) => {
const circle: CircleShape = { const circle: CircleShape = {
id: Date.now(), id: Date.now(),
@ -48,11 +43,15 @@ export const updateDocWithNewCircle = (x: number, y: number, radius: number) =>
radius, radius,
color: "red" color: "red"
}; };
if (!doc.shapes) {
doc.shapes = [];
}
doc.shapes.push(circle); doc.shapes.push(circle);
}); });
} }
export const updateDocWithNewTriangle = (x1: number, y1: number, x2: number, y2: number, x3: number, y3: number) => { export function updateDocWithNewTriangle(x1: number, y1: number, x2: number, y2: number, x3: number, y3: number): void {
console.log('Adding triangle:', { x1, y1, x2, y2, x3, y3 }); // Debug log
handle.change((doc: AppDocument) => { handle.change((doc: AppDocument) => {
const triangle: TriangleShape = { const triangle: TriangleShape = {
id: Date.now(), id: Date.now(),
@ -64,6 +63,9 @@ export const updateDocWithNewTriangle = (x1: number, y1: number, x2: number, y2:
], ],
color: "blue" color: "blue"
}; };
if (!doc.shapes) {
doc.shapes = [];
}
doc.shapes.push(triangle); doc.shapes.push(triangle);
}); });
} }

117
src/main.ts
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@ -1,116 +1,15 @@
import { initRepo, updateDocWithNewCircle, updateDocWithNewTriangle, updateDocWithShapeMove } from "./docManager"; import Canvas from './components/Canvas.svelte';
import { createOrUpdateShapes } from "./canvasManager"; import { initRepo } from './docManager';
import { CircleShape } from "./types"; import { mount } from 'svelte';
interface Config {
THROTTLE_MS: number;
DEFAULT_SHAPES: {
CIRCLE: Omit<CircleShape, 'id' | 'type' | 'color'>;
TRIANGLE: {
x1: number;
y1: number;
x2: number;
y2: number;
x3: number;
y3: number;
};
};
}
const CONFIG: Config = {
THROTTLE_MS: 16,
DEFAULT_SHAPES: {
CIRCLE: { x: 100, y: 100, radius: 30 },
TRIANGLE: { x1: 200, y1: 200, x2: 220, y2: 220, x3: 180, y3: 220 }
}
};
function initDragAndDrop(container: SVGSVGElement): void {
let isDragging = false;
let selectedShapeId: string | null = null;
const throttledMoveShape = throttle((shapeId: string, x: number, y: number) => {
updateDocWithShapeMove(shapeId, x, y);
}, CONFIG.THROTTLE_MS);
container.addEventListener("mousedown", (e: MouseEvent) => {
const target = e.target as SVGElement;
if (target instanceof SVGCircleElement || target instanceof SVGPolygonElement) {
isDragging = true;
selectedShapeId = target.id;
}
});
container.addEventListener("mousemove", (e: MouseEvent) => {
if (!isDragging || !selectedShapeId) return;
const svgPoint = getSVGPoint(container, e.clientX, e.clientY);
throttledMoveShape(selectedShapeId, svgPoint.x, svgPoint.y);
});
container.addEventListener("mouseup", () => {
isDragging = false;
selectedShapeId = null;
});
}
function getSVGPoint(container: SVGSVGElement, x: number, y: number): DOMPoint {
const pt = container.createSVGPoint();
pt.x = x;
pt.y = y;
const ctm = container.getScreenCTM();
if (!ctm) {
throw new Error("Could not get screen CTM");
}
return pt.matrixTransform(ctm.inverse());
}
function throttle<T extends (...args: any[]) => void>(func: T, limit: number): T {
let inThrottle = false;
return function(this: any, ...args: Parameters<T>) {
if (!inThrottle) {
func.apply(this, args);
inThrottle = true;
setTimeout(() => inThrottle = false, limit);
}
} as T;
}
async function initApp(): Promise<void> {
const container = document.querySelector("#shapesCanvas") as SVGSVGElement;
if (!container) throw new Error("Canvas container not found");
async function initApp() {
const handle = await initRepo(); const handle = await initRepo();
const doc = handle.docSync(); mount(Canvas, {
if (!doc) throw new Error("Failed to sync document"); target: document.getElementById('app')!,
props: {
createOrUpdateShapes(container, doc.shapes); handle
handle.on("change", (change) => {
createOrUpdateShapes(container, change.doc.shapes, change.patches);
});
initShapeButtons();
initDragAndDrop(container);
} }
function initShapeButtons(): void {
const circleButton = document.querySelector("#addCircleButton") as HTMLElement;
const triangleButton = document.querySelector("#addTriangleButton") as HTMLElement;
if (!circleButton || !triangleButton) {
throw new Error("Shape buttons not found");
}
circleButton.addEventListener("click", () => {
const { x, y, radius } = CONFIG.DEFAULT_SHAPES.CIRCLE;
updateDocWithNewCircle(x, y, radius);
});
triangleButton.addEventListener("click", () => {
const { x1, y1, x2, y2, x3, y3 } = CONFIG.DEFAULT_SHAPES.TRIANGLE;
updateDocWithNewTriangle(x1, y1, x2, y2, x3, y3);
}); });
} }

11
vite.config.ts
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@ -1,6 +1,7 @@
import { defineConfig } from "vite" import { defineConfig } from "vite"
import { svelte } from '@sveltejs/vite-plugin-svelte'
import wasm from "vite-plugin-wasm" import wasm from "vite-plugin-wasm"
import topLevelAwait from 'vite-plugin-top-level-await' import topLevelAwait from "vite-plugin-top-level-await"
export default defineConfig({ export default defineConfig({
// customize this to your repo name for github pages deploy // customize this to your repo name for github pages deploy
@ -10,10 +11,14 @@ export default defineConfig({
target: "esnext", target: "esnext",
}, },
plugins: [wasm(), topLevelAwait()], plugins: [
wasm(),
topLevelAwait(),
svelte()
],
worker: { worker: {
format: "es", format: "es",
plugins: () => [wasm()], plugins: () => [svelte()],
}, },
}) })