Initial commit of 001code-html Scratch frontend project.

Includes scratch-gui, scratch-vm, scratch-blocks, scratch-render, scratch-l10n, and deployment config.

Co-authored-by: Cursor <cursoragent@cursor.com>

scratch-vm/test/integration/tw_standalone_blocks.js

@@ -0,0 +1,116 @@
+const {test} = require('tap');
+const VirtualMachine = require('../../src/virtual-machine');
+const RenderedTarget = require('../../src/sprites/rendered-target');
+const Sprite = require('../../src/sprites/sprite');
+
+test('Serializes standalone blocks', t => {
+    t.plan(4);
+
+    const vm = new VirtualMachine();
+
+    vm.extensionManager.workerURLs[0] = 'https://example.com/test1.js';
+    vm.extensionManager.workerURLs[1] = 'https://example.com/test2.js';
+    vm.extensionManager._loadedExtensions.set('test1', 'test.0.0');
+    vm.extensionManager._loadedExtensions.set('test2', 'test.1.0');
+
+    const primitiveBlock = {
+        id: 'donotcompress1',
+        opcode: 'control_if'
+    };
+    const extensionBlock1 = {
+        id: 'donotcompress2',
+        opcode: 'test1_something'
+    };
+    const extensionBlock2 = {
+        id: 'donotcompress3',
+        opcode: 'test2_something'
+    };
+
+    t.same(vm.exportStandaloneBlocks([]), []);
+    t.same(vm.exportStandaloneBlocks([primitiveBlock]), [primitiveBlock]);
+    t.same(vm.exportStandaloneBlocks([extensionBlock1, extensionBlock2]), {
+        blocks: [extensionBlock1, extensionBlock2],
+        extensionURLs: {
+            test1: 'https://example.com/test1.js',
+            test2: 'https://example.com/test2.js'
+        }
+    });
+    t.same(vm.exportStandaloneBlocks([primitiveBlock, extensionBlock2]), {
+        blocks: [primitiveBlock, extensionBlock2],
+        extensionURLs: {
+            test2: 'https://example.com/test2.js'
+        }
+    });
+
+    t.end();
+});
+
+test('Deserializes vanilla standalone blocks', t => {
+    t.plan(2);
+
+    const vm = new VirtualMachine();
+    const target = new RenderedTarget(new Sprite(null, vm.runtime), vm.runtime);
+    vm.runtime.addTarget(target);
+
+    vm.shareBlocksToTarget([
+        {
+            id: 'abcdef',
+            opcode: 'control_if'
+        }
+    ], target.id).then(() => {
+        const createdBlock = Object.values(target.sprite.blocks._blocks)[0];
+        t.equal(createdBlock.opcode, 'control_if');
+        t.not(createdBlock.id, 'abcdef', 'opcode changed');
+
+        t.end();
+    });
+});
+
+test('Deserializes standalone blocks with extensions', t => {
+    t.plan(3);
+
+    const vm = new VirtualMachine();
+    const target = new RenderedTarget(new Sprite(null, vm.runtime), vm.runtime);
+    vm.runtime.addTarget(target);
+
+    const events = [];
+    vm.securityManager.canLoadExtensionFromProject = url => {
+        events.push(`canLoadExtensionFromProject ${url}`);
+        return true;
+    };
+    vm.extensionManager.loadExtensionURL = url => {
+        events.push(`loadExtensionURL ${url}`);
+        return Promise.resolve();
+    };
+
+    vm.shareBlocksToTarget({
+        blocks: [
+            {
+                id: 'fruit',
+                opcode: 'pen_clear'
+            },
+            {
+                id: 'vegetable',
+                opcode: 'test1_something'
+            }
+        ],
+        extensionURLs: {
+            test1: 'https://example.com/test1.js',
+            test2: 'https://example.com/should.be.discarded.js',
+            pen: 'https://example.com/should.also.be.discarded.js'
+        }
+    }, target.id).then(() => {
+        t.same(events, [
+            'canLoadExtensionFromProject https://example.com/test1.js',
+            'loadExtensionURL https://example.com/test1.js'
+        ]);
+
+        const penBlock = Object.values(target.sprite.blocks._blocks).find(i => i.opcode === 'pen_clear');
+        t.not(penBlock.id, 'fruit', 'changed pen block id');
+
+        const extensionBlock = Object.values(target.sprite.blocks._blocks).find(i => i.opcode === 'test1_something');
+        t.not(extensionBlock.id, 'vegetable', 'changed extension block id');
+
+        t.end();
+    });
+});