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/stack-click.js

@@ -0,0 +1,59 @@
+const path = require('path');
+const test = require('tap').test;
+const makeTestStorage = require('../fixtures/make-test-storage');
+const readFileToBuffer = require('../fixtures/readProjectFile').readFileToBuffer;
+const VirtualMachine = require('../../src/index');
+
+const projectUri = path.resolve(__dirname, '../fixtures/stack-click.sb2');
+const project = readFileToBuffer(projectUri);
+
+/**
+ * stack-click.sb2 contains a sprite at (0, 0) with a single stack
+ *     when timer > 100000000
+ *         move 100 steps
+ * The intention is to make sure that the stack can be activated by a stack click
+ * even when the hat predicate is false.
+ */
+test('stack click activates the stack', t => {
+    const vm = new VirtualMachine();
+    vm.attachStorage(makeTestStorage());
+
+    // Evaluate playground data and exit
+    vm.on('playgroundData', () => {
+        // The sprite should have moved 100 to the right
+        t.equal(vm.editingTarget.x, 100);
+        vm.quit();
+        t.end();
+    });
+
+    // Start VM, load project, and run
+    t.doesNotThrow(() => {
+        vm.start();
+        vm.clear();
+        vm.setCompatibilityMode(false);
+        vm.setTurboMode(false);
+        vm.loadProject(project).then(() => {
+            const blockContainer = vm.runtime.targets[1].blocks;
+            const allBlocks = blockContainer._blocks;
+
+            // Confirm the editing target is initially at 0
+            t.equal(vm.editingTarget.x, 0);
+
+            // Find hat for greater than and click it
+            for (const blockId in allBlocks) {
+                if (allBlocks[blockId].opcode === 'event_whengreaterthan') {
+                    blockContainer.blocklyListen({
+                        blockId: blockId,
+                        element: 'stackclick'
+                    });
+                }
+            }
+
+            // After two seconds, get playground data and stop
+            setTimeout(() => {
+                vm.getPlaygroundData();
+                vm.stopAll();
+            }, 2000);
+        });
+    });
+});