Automatically update version to 0.10.0-rc.6

This reverts commit 0855a9c6c7.

README.md

@@ -23,9 +23,9 @@ in a web browser.
 The [example](example) is a fully working project that shows how to use the viewer.
 
 You can play with the latest
-demo [here](https://yeicor-3d.github.io/yet-another-cad-viewer/?preload=logo.glb&preload=logo_hl.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)
+demo [here](https://yeicor-3d.github.io/yet-another-cad-viewer/?preload=logo.glb&preload=logo_hl.glb&preload=logo_hl_tex.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)
 (or
-[without animation](https://yeicor-3d.github.io/yet-another-cad-viewer/?autoplay=false&preload=logo.glb&preload=logo_hl.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)).
+[without animation](https://yeicor-3d.github.io/yet-another-cad-viewer/?autoplay=false&preload=logo.glb&preload=logo_hl.glb&preload=logo_hl_tex.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)).
 
 ![Demo](assets/screenshot.png)
 

frontend/App.vue

@@ -53,7 +53,7 @@ async function onModelUpdateRequest(event: NetworkUpdateEvent) {
     let model = event.models[modelIndex];
     tools.value?.removeObjectSelections(model.name);
     try {
-      let loadHelpers = (await settings()).loadHelpers;
+      let loadHelpers = (await settings).loadHelpers;
       if (!model.isRemove) {
         doc = await SceneMgr.loadModel(sceneUrl, doc, model.name, model.url, isLast && loadHelpers, isLast);
       } else {
@@ -83,7 +83,7 @@ networkMgr.addEventListener('update-early',
 networkMgr.addEventListener('update', (e) => onModelUpdateRequest(e as NetworkUpdateEvent));
 let preloadingModels = ref<Array<string>>([]);
 (async () => { // Start loading all configured models ASAP
-  let sett = await settings();
+  let sett = await settings;
   if (sett.preload.length > 0) {
     watch(viewer, (newViewer) => {
       if (newViewer) {
@@ -108,6 +108,23 @@ async function loadModelManual() {
   const modelUrl = prompt("For an improved experience in viewing CAD/GLTF models with automatic updates, it's recommended to use the official yacv_server Python package. This ensures seamless serving of models and automatic updates.\n\nOtherwise, enter the URL of the model to load:");
   if (modelUrl) await networkMgr.load(modelUrl);
 }
+
+// Detect dropped .glb files and load them manually
+document.body.addEventListener("dragover", e => {
+  e.preventDefault(); // Allow drop
+});
+
+document.body.addEventListener("drop", async e => {
+  e.preventDefault();
+  const file = e.dataTransfer?.files?.[0];
+  if (!file) return;
+
+  const ext = file.name.split('.').pop()?.toLowerCase();
+  if (ext === 'glb' || ext === 'gltf') {
+    await networkMgr.load(file);
+  }
+});
+
 </script>
 
 <template>

frontend/misc/gltf.ts

@@ -15,11 +15,11 @@ let isSmallBuild = typeof __YACV_SMALL_BUILD__ !== 'undefined' && __YACV_SMALL_B
  *
  * Remember to call mergeFinalize after all models have been merged (slower required operations).
  */
-export async function mergePartial(url: string, name: string, document: Document, networkFinished: () => void = () => {
+export async function mergePartial(url: string | Blob, name: string, document: Document, networkFinished: () => void = () => {
 }): Promise<Document> {
     // Fetch the complete document from the network
     // This could be done at the same time as the document is being processed, but I wanted better metrics
-    let response = await fetch(url);
+    let response = await fetchOrRead(url);
     let buffer = await response.arrayBuffer();
     networkFinished();
 
@@ -118,3 +118,30 @@ function mergeScenes(): Transform {
         }
     }
 }
+
+/** Fetches a URL or reads it if it is a Blob URL */
+async function fetchOrRead(url: string | Blob) {
+    if (url instanceof Blob) {
+        // Use the FileReader API as fetch does not support Blob URLs
+        return new Promise<Response>((resolve, reject) => {
+            const reader = new FileReader();
+            reader.onloadend = (event: ProgressEvent<FileReader>) => {
+                if (event.target && event.target.result) {
+                    resolve(new Response(event.target.result));
+                } else {
+                    reject(new Error("Failed to read Blob URL: " + url));
+                }
+            };
+            reader.onerror = (error) => {
+                reject(new Error("Error reading Blob URL: " + url + " - " + error));
+            };
+            // Read the Blob URL as an ArrayBuffer
+            reader.readAsArrayBuffer(new Blob([url]));
+        });
+    } else {
+        // Fetch the URL
+        return fetch(url);
+    }
+
+}
+

frontend/misc/network.ts

@@ -4,12 +4,12 @@ const batchTimeout = 250; // ms
 
 export class NetworkUpdateEventModel {
     name: string;
-    url: string;
+    url: string | Blob;
     // TODO: Detect and manage instances of the same object (same hash, different name)
     hash: string | null;
     isRemove: boolean | null; // This is null for a shutdown event
 
-    constructor(name: string, url: string, hash: string | null, isRemove: boolean | null) {
+    constructor(name: string, url: string | Blob, hash: string | null, isRemove: boolean | null) {
         this.name = name;
         this.url = url;
         this.hash = hash;
@@ -42,18 +42,26 @@ export class NetworkManager extends EventTarget {
      *
      * Updates will be emitted as "update" events, including the download URL and the model name.
      */
-    async load(url: string) {
-        if (url.startsWith("dev+") || url.startsWith("dev ")) {
+    async load(url: string | Blob) {
+        if (url instanceof String && (url.startsWith("dev+") || url.startsWith("dev "))) {
             let baseUrl = new URL(url.slice(4));
             baseUrl.searchParams.set("api_updates", "true");
             await this.monitorDevServer(baseUrl);
         } else {
-            // Get the last part of the URL as the "name" of the model
-            let name = url.split("/").pop();
-            name = name?.split(".")[0] || `unknown-${Math.random()}`;
-            // Use a head request to get the hash of the file
-            let response = await fetch(url, {method: "HEAD"});
-            let hash = response.headers.get("etag");
+            let name;
+            let hash = null;
+            if (url instanceof Blob) {
+                if (url instanceof File) name = (url as File).name
+                else name = `blob-${Math.random()}`;
+                name = name.replace('.glb', '').replace('.gltf', '');
+            } else {
+                // Get the last part of the URL as the "name" of the model
+                name = url.split("/").pop();
+                name = name?.split(".")[0] || `unknown-${Math.random()}`;
+                // Use a head request to get the hash of the file
+                let response = await fetch(url, {method: "HEAD"});
+                hash = response.headers.get("etag");
+            }
             // Only trigger an update if the hash has changed
             this.foundModel(name, hash, url, false);
         }
@@ -61,7 +69,7 @@ export class NetworkManager extends EventTarget {
 
     private async monitorDevServer(url: URL, stop: () => boolean = () => false) {
         while (!stop()) {
-            let monitorEveryMs = (await settings()).monitorEveryMs;
+            let monitorEveryMs = (await settings).monitorEveryMs;
             try {
                 // WARNING: This will spam the console logs with failed requests when the server is down
                 const controller = new AbortController();
@@ -92,7 +100,7 @@ export class NetworkManager extends EventTarget {
         }
     }
 
-    private foundModel(name: string, hash: string | null, url: string, isRemove: boolean | null, disconnect: () => void = () => {
+    private foundModel(name: string, hash: string | null, url: string | Blob, isRemove: boolean | null, disconnect: () => void = () => {
     }) {
         // console.debug("Found model", name, "with hash", hash, "at", url, "isRemove", isRemove);
 

frontend/misc/scene.ts

@@ -9,7 +9,7 @@ import {Matrix4} from "three/src/math/Matrix4.js"
 /** This class helps manage SceneManagerData. All methods are static to support reactivity... */
 export class SceneMgr {
     /** Loads a GLB model from a URL and adds it to the viewer or replaces it if the names match */
-    static async loadModel(sceneUrl: Ref<string>, document: Document, name: string, url: string, updateHelpers: boolean = true, reloadScene: boolean = true): Promise<Document> {
+    static async loadModel(sceneUrl: Ref<string>, document: Document, name: string, url: string | Blob, updateHelpers: boolean = true, reloadScene: boolean = true): Promise<Document> {
         let loadStart = performance.now();
         let loadNetworkEnd: number;
 
@@ -100,7 +100,9 @@ export class SceneMgr {
         newAxes(helpersDoc, bb.getSize(new Vector3()).multiplyScalar(0.5), transform);
         newGridBox(helpersDoc, bb.getSize(new Vector3()), transform);
         let helpersUrl = URL.createObjectURL(new Blob([await toBuffer(helpersDoc)]));
-        return await SceneMgr.loadModel(sceneUrl, document, extrasNameValueHelpers, helpersUrl, false, reloadScene);
+        let newDocument = await SceneMgr.loadModel(sceneUrl, document, extrasNameValueHelpers, helpersUrl, false, reloadScene);
+        URL.revokeObjectURL(helpersUrl);
+        return newDocument;
     }
 
     /** Serializes the current document into a GLB and updates the viewerSrc */
@@ -112,6 +114,7 @@ export class SceneMgr {
         let buffer = await toBuffer(document);
         let blob = new Blob([buffer], {type: 'model/gltf-binary'});
         console.debug("Showing current doc", document, "with", buffer.length, "total bytes");
+        if (sceneUrl.value.startsWith("blob:")) URL.revokeObjectURL(sceneUrl.value);
         sceneUrl.value = URL.createObjectURL(blob);
 
         return document;

frontend/misc/settings.ts

@@ -1,11 +1,9 @@
 // These are the default values for the settings, which are overridden below
 import {ungzip} from "pako";
-import {b66Decode} from "../tools/b66.ts";
+import {b64UrlDecode} from "../tools/b64.ts";
 
-let settingsCache: any = null;
-
-export async function settings() {
-    if (settingsCache !== null) return settingsCache;
+const firstTimeNames: Array<string> = []; // Needed for array values, which clear the array when overridden
+export const settings = (async () => {
     let settings = {
         preload: [
             // @ts-ignore
@@ -80,6 +78,12 @@ export async function settings() {
     // Get the default preload URL if not overridden (requires a fetch that is avoided if possible)
     for (let i = 0; i < settings.preload.length; i++) {
         let url = settings.preload[i];
+        // Ignore empty preload URLs to allow overriding default auto behavior
+        if (url === '') {
+            settings.preload = settings.preload.slice(0, i).concat(settings.preload.slice(i + 1));
+            continue; // Skip this preload URL
+        }
+        // Handle special <auto> preload URL
         if (url === '<auto>') {
             if (settings.pg_code != "") { // <auto> means no preload URL if code is set
                 settings.preload = settings.preload.slice(0, i).concat(settings.preload.slice(i + 1));
@@ -102,9 +106,9 @@ export async function settings() {
     // Auto-decompress the code and other playground settings
     if (settings.pg_code.length > 0) {
         try {
-            settings.pg_code = ungzip(b66Decode(settings.pg_code), {to: 'string'});
+            settings.pg_code = ungzip(b64UrlDecode(settings.pg_code), {to: 'string'});
         } catch (error) {
-            console.warn("Failed to decompress code (assuming raw code):", error);
+            console.log("pg_code is not base64url+gzipped, assuming raw code. Decoding error:", error);
         }
         if (settings.pg_opacity_loading < 0) {
             // If the opacity is not set, use 0.0 if preload is set, otherwise 0.9
@@ -112,11 +116,9 @@ export async function settings() {
         }
     }
 
-    settingsCache = settings;
     return settings;
-}
+})()
 
-const firstTimeNames: Array<string> = []; // Needed for array values, which clear the array when overridden
 function parseSetting(name: string, value: string, settings: any): any {
     let arrayElem = name.endsWith(".0")
     if (arrayElem) name = name.slice(0, -2);

frontend/models/Model.vue

@@ -60,7 +60,7 @@ const clipPlaneZ = ref(1);
 const clipPlaneSwappedZ = ref(false);
 const edgeWidth = ref(0);
 (async () => {
-  let s = await settings();
+  let s = await settings;
   edgeWidth.value = s.edgeWidth;
 })();
 

frontend/tools/PlaygroundDialogContent.vue

@@ -4,26 +4,34 @@ import {VueMonacoEditor} from '@guolao/vue-monaco-editor'
 import {nextTick, onMounted, ref, shallowRef} from "vue";
 import Loading from "../misc/Loading.vue";
 import {newPyodideWorker} from "./pyodide-worker-api.ts";
-import {mdiCircleOpacity, mdiClose, mdiContentSave, mdiFolderOpen, mdiPlay, mdiReload, mdiShare} from "@mdi/js";
+import {
+  mdiBroom,
+  mdiCircleOpacity,
+  mdiClose,
+  mdiContentSave,
+  mdiFolderOpen,
+  mdiPlay,
+  mdiReload,
+  mdiShare
+} from "@mdi/js";
 import {VBtn, VCard, VCardText, VSlider, VSpacer, VToolbar, VToolbarTitle, VTooltip} from "vuetify/components";
 // @ts-expect-error
 import SvgIcon from '@jamescoyle/vue-icon';
 import {version as pyodideVersion} from "pyodide";
 import {gzip} from 'pako';
-import {b66Encode} from "./b66.ts";
+import {b64UrlEncode} from "./b64.ts";
 import {Base64} from 'js-base64'; // More compatible with binary data from python...
 import {NetworkUpdateEvent, NetworkUpdateEventModel} from "../misc/network.ts";
 import {settings} from "../misc/settings.ts";
 // @ts-expect-error
 import playgroundStartupCode from './PlaygroundStartup.py?raw';
 
-const props = defineProps<{ initialCode: string }>();
+const model = defineModel<{ code: string, firstTime: boolean }>({required: true}); // Initial code should only be set on first load!
 const emit = defineEmits<{ close: [], updateModel: [NetworkUpdateEvent] }>()
 
 // ============ LOAD MONACO EDITOR ============
 setupMonaco() // Must be called before using the editor
 
-const code = ref((import.meta as any)?.hot?.data?.code || props.initialCode);
 const outputText = ref(``);
 
 function output(text: string) {
@@ -51,21 +59,24 @@ const MONACO_EDITOR_OPTIONS = {
 const editorTheme = window.matchMedia("(prefers-color-scheme: dark)").matches ? `vs-dark` : `vs`
 const editor = shallowRef()
 const handleMount = (editorInstance: typeof VueMonacoEditor) => (editor.value = editorInstance)
-const opacity = ref(0.9); // Opacity for the editor
+const opacity = ref(0.9); // Opacity for the editor (overriden when settings are loaded)
 
 // ============ LOAD PYODIDE (ASYNC) ============
 let pyodideWorker: ReturnType<typeof newPyodideWorker> | null = (import.meta as any).hot?.data?.pyodideWorker || null;
 const running = ref(true);
 
-async function setupPyodide() {
+async function setupPyodide(first: boolean, loadSnapshot: Uint8Array | undefined = undefined) {
   running.value = true;
-  if (opacity.value == 0.0) opacity.value = 0.9; // User doesn't know how to show code again, reset after reopening
+  if (opacity.value == 0.0 && !first) opacity.value = 0.9; // User doesn't know how to show code again, reset after reopening
   if (pyodideWorker === null) {
     output("Creating new Pyodide worker...\n");
-    pyodideWorker = newPyodideWorker({
-      indexURL: `https://cdn.jsdelivr.net/pyodide/v${pyodideVersion}/full/`, // FIXME: Local deployment?
+    pyodideWorker = newPyodideWorker(Object.assign({
+      // Note: python wheels are downloaded from the CDN, as we can't know which ones are needed in advance to bundle them
+      // Furthermore, this lets us use the latest version of all wheels including ocp-specific ones without app updates
+      indexURL: `https://cdn.jsdelivr.net/pyodide/v${pyodideVersion}/full/`,
       packages: ["micropip", "sqlite3"], // Faster load if done here
-    });
+      // _makeSnapshot: true, // Enable snapshotting for faster startup (still experimental: breaks loading any packages)
+    }, (loadSnapshot ? {_loadSnapshot: loadSnapshot} : {}))); // Load snapshot if provided
     if ((import.meta as any).hot) (import.meta as any).hot.data.pyodideWorker = pyodideWorker
   } else {
     output("Reusing existing Pyodide instance...\n");
@@ -73,7 +84,7 @@ async function setupPyodide() {
   output("Preloading packages...\n");
   await pyodideWorker.asyncRun(playgroundStartupCode, output, output); // Also import yacv_server and mock ocp_vscode here for faster custom code execution
   running.value = false; // Indicate that Pyodide is ready
-  output("Pyodide worker initialized.\n");
+  output("Pyodide worker ready.\n");
 }
 
 async function runCode() {
@@ -88,8 +99,7 @@ async function runCode() {
   output("Running code...\n");
   try {
     running.value = true;
-    if ((import.meta as any).hot) (import.meta as any).hot.data.code = code.value; // Save code for hot reload
-    await pyodideWorker.asyncRun(code.value, output, (msg: string) => {
+    await pyodideWorker.asyncRun(model.value.code, output, (msg: string) => {
       // Detect models printed to console (since http server is not available in pyodide)
       if (msg.startsWith(yacvServerModelPrefix)) {
         const modelData = msg.slice(yacvServerModelPrefix.length);
@@ -99,7 +109,7 @@ async function runCode() {
       }
     });
   } catch (e) {
-    output(`Error running initial code: ${e}\n`);
+    output(`Error running code: ${e}\n`);
   } finally {
     running.value = false; // Indicate that Pyodide is ready
   }
@@ -131,7 +141,7 @@ function onModelData(modelData: string) {
         "Invalid GLTF binary data received: " + binaryData.slice(0, 4).toString());
     // - Create a Blob from the binary data to be used as a URL
     const blob = new Blob([binaryData], {type: 'model/gltf-binary'});
-    modelMetadata.url = URL.createObjectURL(blob); // Set the hacked URL in the model metadata
+    modelMetadata.url = URL.createObjectURL(blob); // Set the hacked URL in the model metadata XXX: revoked on App.vue
   }
   // - Emit the event with the model metadata and URL
   let networkUpdateEvent = new NetworkUpdateEvent([modelMetadata], () => {
@@ -139,22 +149,26 @@ function onModelData(modelData: string) {
   emit('updateModel', networkUpdateEvent);
 }
 
-function resetWorker() {
+function resetWorker(loadSnapshot: Uint8Array | undefined = undefined) {
   if (pyodideWorker) {
     pyodideWorker.terminate(); // Terminate existing worker
     pyodideWorker = null; // Reset worker reference
   }
   outputText.value = ``; // Clear output text
-  setupPyodide(); // Reinitialize Pyodide
+  setupPyodide(false, loadSnapshot); // Reinitialize Pyodide
 }
 
 function shareLink() {
   const baseUrl = window.location
-  const urlParams = new URLSearchParams(baseUrl.hash.slice(1)); // Keep all previous URL parameters
-  urlParams.set('pg_code', b66Encode(gzip(code.value, {level: 9}))); // Compress and encode the code
-  const shareUrl = `${baseUrl.origin}${baseUrl.pathname}${baseUrl.search}#${urlParams.toString()}`; // Prefer hash to GET (bigger limits)
+  const searchParams = new URLSearchParams(baseUrl.search);
+  searchParams.delete('pg_code_url'); // Remove any existing pg_code parameter
+  searchParams.delete('pg_code'); // Remove any existing pg_code parameter
+  const hashParams = new URLSearchParams(baseUrl.hash.slice(1)); // Keep all previous URL parameters
+  hashParams.delete('pg_code_url') // Would overwrite the pg_code parameter
+  hashParams.set('pg_code', b64UrlEncode(gzip(model.value.code, {level: 9}))); // Compress and encode the code
+  const shareUrl = `${baseUrl.origin}${baseUrl.pathname}?${searchParams}#${hashParams}`; // Prefer hash to GET
   output(`Share link ready: ${shareUrl}\n`)
-  if (!navigator.clipboard) {
+  if (navigator.clipboard?.writeText === undefined) {
     output("Clipboard API not available. Please copy the link manually.\n");
     return;
   } else {
@@ -172,27 +186,28 @@ function loadSnapshot() {
   throw new Error("Not implemented yet!"); // TODO: Implement snapshot loading
 }
 
-const reused = (import.meta as any).hot?.data?.pyodideWorker !== undefined;
 (async () => {
-  const sett = await settings()
-  if (!reused) opacity.value = sett.pg_opacity_loading
-  await setupPyodide()
-  if (props.initialCode != "" && !reused) await runCode();
-  if (!reused) opacity.value = sett.pg_opacity_loaded
+  const sett = await settings
+  if (model.value.firstTime) opacity.value = sett.pg_opacity_loading
+  await setupPyodide(true);
+  if (model.value.firstTime) {
+    await runCode();
+    opacity.value = sett.pg_opacity_loaded
+    model.value.firstTime = false
+  }
 })()
 
 // Add keyboard shortcuts
 const editorRef = ref<HTMLElement | null>(null);
 onMounted(() => {
   if (editorRef.value) {
-    console.log(editorRef.value)
     editorRef.value.addEventListener('keydown', (event: Event) => {
       if (!(event instanceof KeyboardEvent)) return; // Ensure event is a KeyboardEvent
-      if (event.key === 'Enter' && event.ctrlKey) {
-        event.preventDefault(); // Prevent default behavior of Enter key
-        runCode(); // Run code on Ctrl+Enter
-      } else if (event.key === 'Escape') {
-        emit('close'); // Close on Escape key
+      if (event.key === 'F10') { // Run code on F10
+        event.preventDefault(); // Prevent default behavior of the key
+        runCode();
+      } else if (event.key === 'Escape') { // Close on Escape key
+        emit('close');
       }
     });
   }
@@ -256,11 +271,17 @@ onMounted(() => {
       <!-- Only show content if opacity is greater than 0 -->
       <div class="playground-container">
         <div class="playground-editor" ref="editorRef">
-          <VueMonacoEditor v-model:value="code" :theme="editorTheme" :options="MONACO_EDITOR_OPTIONS"
+          <VueMonacoEditor v-model:value="model.code" :theme="editorTheme" :options="MONACO_EDITOR_OPTIONS"
                            language="python" @mount="handleMount"/>
         </div>
         <div class="playground-console">
-          <h3>Console Output</h3>
+          <h3 style="display:flex; align-items: center; justify-content: space-between; margin: 0;">
+            Console Output
+            <v-spacer></v-spacer>
+            <v-btn @click="outputText = ''">
+              <svg-icon :path="mdiBroom" type="mdi" class="h-"/>
+            </v-btn>
+          </h3>
           <pre>{{ outputText }}</pre> <!-- Placeholder for console output -->
           <Loading v-if="running"/>
         </div>

frontend/tools/PlaygroundStartup.py

@@ -16,23 +16,21 @@ micropip.add_mock_package("ocp-vscode", "2.8.9", modules={"ocp_vscode": 'from ya
 show_object = show
 
 # Preinstall a font to avoid issues with no font being available.
-def install_font_to_ocp(font_url, font_name=None):
+async def install_font_to_ocp(font_url, font_name=None):
     # noinspection PyUnresolvedReferences
     from pyodide.http import pyfetch
     from OCP.Font import Font_FontMgr, Font_SystemFont, Font_FA_Regular
     from OCP.TCollection import TCollection_AsciiString
-    import os, asyncio
+    import os
 
+    # Prepare the font path and name
     font_name = font_name if font_name is not None else font_url.split("/")[-1]
-
-    # Choose a "system-like" font directory
     font_path = os.path.join("/tmp", font_name)
     os.makedirs(os.path.dirname(font_path), exist_ok=True)
 
     # Download the font using pyfetch
-    loop = asyncio.get_event_loop()
-    response = loop.run_until_complete(pyfetch(font_url))
-    font_data = loop.run_until_complete(response.bytes())
+    response = await pyfetch(font_url)
+    font_data = await response.bytes()
 
     # Save it to the system-like folder
     with open(font_path, "wb") as f:
@@ -47,4 +45,4 @@ def install_font_to_ocp(font_url, font_name=None):
 
 
 # Make sure there is at least one font installed, so that the tests can run
-install_font_to_ocp("https://raw.githubusercontent.com/xbmc/xbmc/d3a7f95f3f017b8e861d5d95cc4b33eef4286ce2/media/Fonts/arial.ttf")
+await install_font_to_ocp("https://raw.githubusercontent.com/xbmc/xbmc/d3a7f95f3f017b8e861d5d95cc4b33eef4286ce2/media/Fonts/arial.ttf")

frontend/tools/Tools.vue

@@ -28,7 +28,7 @@ import SvgIcon from '@jamescoyle/vue-icon';
 import type {ModelViewerElement} from '@google/model-viewer';
 import Loading from "../misc/Loading.vue";
 import type ModelViewerWrapper from "../viewer/ModelViewerWrapper.vue";
-import {defineAsyncComponent, ref, type Ref} from "vue";
+import {defineAsyncComponent, ref} from "vue";
 import type {SelectionInfo} from "./selection";
 import {settings} from "../misc/settings.ts";
 import type {NetworkUpdateEvent} from "../misc/network.ts";
@@ -59,12 +59,14 @@ const emit = defineEmits<{ findModel: [string], updateModel: [NetworkUpdateEvent
 
 const sett = ref<any | null>(null);
 const showPlaygroundDialog = ref(false);
+const pg_model = ref({code: '# Loading...', firstTime: false});
 (async () => {
-  sett.value = await settings();
-  showPlaygroundDialog.value = sett.value.pg_code != "";
+  sett.value = await settings;
+  pg_model.value = {code: sett.value.pg_code, firstTime: true};
+  showPlaygroundDialog.value = pg_model.value.code != "";
 })();
 
-let selection: Ref<Array<SelectionInfo>> = ref([]);
+let selection = ref<Array<SelectionInfo>>([]);
 let selectionFaceCount = () => selection.value.filter((s) => s.kind == 'face').length
 let selectionEdgeCount = () => selection.value.filter((s) => s.kind == 'edge').length
 let selectionVertexCount = () => selection.value.filter((s) => s.kind == "vertex").length
@@ -126,6 +128,7 @@ async function downloadSceneGlb() {
   link.download = file.name;
   link.href = URL.createObjectURL(file);
   link.click();
+  URL.revokeObjectURL(link.href);
 }
 
 async function openGithub() {
@@ -193,7 +196,7 @@ document.addEventListener('keydown', (event) => {
     </template>
     <template v-slot:default="{ isActive }">
       <if-not-small-build>
-        <playground-dialog-content v-if="sett != null" :initial-code="sett.pg_code" @close="isActive.value = false"
+        <playground-dialog-content v-if="sett != null" v-model="pg_model" @close="isActive.value = false"
                                    @update-model="(event: NetworkUpdateEvent) => emit('updateModel', event)"/>
       </if-not-small-build>
     </template>

frontend/tools/b64.ts

@@ -0,0 +1,21 @@
+export function b64UrlEncode(data: Uint8Array): string {
+    const base64 = btoa(String.fromCharCode(...data));
+    return base64.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
+}
+
+export function b64UrlDecode(encoded: string): Uint8Array {
+    // Replace URL-safe characters with standard base64 characters
+    let base64 = encoded.replace(/-/g, '+').replace(/_/g, '/');
+    // Add padding if necessary
+    const padding = base64.length % 4;
+    if (padding) {
+        base64 += '='.repeat(4 - padding);
+    }
+    // Decode the base64 string to a byte array
+    const binaryString = atob(base64);
+    const byteArray = new Uint8Array(binaryString.length);
+    for (let i = 0; i < binaryString.length; i++) {
+        byteArray[i] = binaryString.charCodeAt(i);
+    }
+    return byteArray;
+}

frontend/tools/b66.ts

@@ -1,54 +0,0 @@
-// B66 encoding and decoding functions for compact url query parameter values. https://gist.github.com/danneu/6755394
-const alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.-_~";
-
-export function b66Encode(data: Uint8Array): string {
-    let result = "";
-    let bits = 0;
-    let value = 0;
-
-    for (let byte of data) {
-        value = (value << 8) | byte;
-        bits += 8;
-
-        while (bits >= 6) {
-            bits -= 6;
-            result += alphabet[(value >> bits) & 0x3F];
-        }
-    }
-
-    if (bits > 0) {
-        result += alphabet[(value << (6 - bits)) & 0x3F];
-    }
-
-    return result;
-}
-
-export function b66Decode(encoded: string): Uint8Array {
-    let result = [];
-    let bits = 0;
-    let value = 0;
-
-    for (let char of encoded) {
-        const index = alphabet.indexOf(char);
-        if (index === -1) {
-            throw new Error(`Invalid character '${char}' in B66 encoded string.`);
-        }
-
-        value = (value << 6) | index;
-        bits += 6;
-
-        while (bits >= 8) {
-            bits -= 8;
-            result.push((value >> bits) & 0xFF);
-        }
-    }
-
-    if (bits > 0) {
-        // If there are leftover bits, they should not be present in a valid B66 encoding.
-        if (value << (8 - bits)) {
-            throw new Error("Invalid B66 encoding: leftover bits.");
-        }
-    }
-
-    return new Uint8Array(result);
-}

frontend/tools/pyodide-worker-api.ts

@@ -38,6 +38,7 @@ export function newPyodideWorker(initOpts: Parameters<typeof loadPyodide>[0]) {
         mkdirTree: (path: string) => commonRequestResponse({type: "mkdirTree", id: requestId++, path}),
         writeFile: (path: string, content: string) =>
             commonRequestResponse({type: "writeFile", id: requestId++, path, content}),
+        makeSnapshot: () => commonRequestResponse({type: "makeSnapshot", id: requestId++}),
         terminate: () => worker.terminate()
     }
 }

frontend/tools/pyodide-worker.ts

@@ -25,6 +25,9 @@ export type MessageEventDataIn = {
     id: number;
     path: string;
     content: string;
+} | {
+    type: 'makeSnapshot';
+    id: number;
 }
 
 self.onmessage = async (event: MessageEvent<MessageEventDataIn>) => {
@@ -64,6 +67,15 @@ self.onmessage = async (event: MessageEvent<MessageEventDataIn>) => {
         } catch (error: any) {
             self.postMessage({id: event.data.id, error: error.message});
         }
+    } else if (event.data.type === 'makeSnapshot') {
+        // Take a snapshot of the current Pyodide filesystem.
+        const pyodide = await pyodideReadyPromise;
+        try {
+            const snapshot = pyodide.makeMemorySnapshot();
+            self.postMessage({id: event.data.id, result: snapshot});
+        } catch (error: any) {
+            self.postMessage({id: event.data.id, error: error.message});
+        }
     } else {
         console.error("Unknown message type:", (event.data as any)?.type);
         self.postMessage({id: (event.data as any)?.id, error: "Unknown message type: " + (event.data as any)?.type});

frontend/viewer/ModelViewerWrapper.vue

@@ -29,7 +29,7 @@ const renderer = ref<Renderer | null>(null);
 const controls = ref<SmoothControls | null>(null);
 
 const sett = ref<any | null>(null);
-(async () => sett.value = await settings())();
+(async () => sett.value = await settings)();
 
 let lastCameraTargetPosition: Vector3 | undefined = undefined;
 let lastCameraZoom: number | undefined = undefined;

frontend/viewer/lighting.ts

@@ -5,7 +5,7 @@ import {settings} from "../misc/settings.ts";
 export let currentSceneRotation = 0; // radians, 0 is the default rotation
 
 export async function setupLighting(modelViewer: ModelViewerElement) {
-    modelViewer[$scene].environmentIntensity = (await settings()).environmentIntensity;
+    modelViewer[$scene].environmentIntensity = (await settings).environmentIntensity;
     // Code is mostly copied from the example at: https://modelviewer.dev/examples/stagingandcameras/#turnSkybox
     let lastX: number;
     let panning = false;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "yet-another-cad-viewer",
-  "version": "0.10.0-rc.3",
+  "version": "0.10.0-rc.6",
   "description": "",
   "license": "MIT",
   "private": true,

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "yacv-server"
-version = "0.10.0-rc.3"
+version = "0.10.0-rc.6"
 description = "Yet Another CAD Viewer (server)"
 authors = ["Yeicor <4929005+Yeicor@users.noreply.github.com>"]
 license = "MIT"

yacv_server/yacv.py

@@ -141,7 +141,6 @@ class YACV:
         """Initializes the YACV server"""
         raw_protocol = os.getenv('YACV_PROTOCOL', 'http' if sys.platform != 'emscripten' else 'stderr').upper()
         self.protocol = YACVProtocol[raw_protocol] if raw_protocol in YACVProtocol.__members__ else YACVProtocol.HTTP
-        self.protocol = YACVProtocol.STDERR
         self.server_thread = None
         self.server = None
         self.startup_complete = threading.Event()

yarn.lock

@@ -2940,6 +2940,7 @@ three-mesh-bvh@^0.9.0:
 
 "three-orientation-gizmo@git+https://github.com/jrj2211/three-orientation-gizmo.git":
   version "1.1.0"
+  uid "000281f0559c316f72cdd23a1885d63ae6901095"
   resolved "git+https://github.com/jrj2211/three-orientation-gizmo.git#000281f0559c316f72cdd23a1885d63ae6901095"
   dependencies:
     three "^0.125.0"