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/unit/io_keyboard_tw.js

@@ -0,0 +1,112 @@
+const test = require('tap').test;
+const Keyboard = require('../../src/io/keyboard');
+const Runtime = require('../../src/engine/runtime');
+
+test('extended spec', t => {
+    const rt = new Runtime();
+    const k = new Keyboard(rt);
+
+    t.type(k.getLastKeyPressed, 'function');
+    t.end();
+});
+
+test('extended key support', t => {
+    const rt = new Runtime();
+    const k = new Keyboard(rt);
+
+    k.postData({
+        key: 'Backspace',
+        isDown: true
+    });
+    t.strictDeepEquals(k._keysPressed, ['backspace']);
+    t.strictEqual(k.getKeyIsDown('backspace'), true);
+    t.end();
+});
+
+test('last key pressed', t => {
+    const rt = new Runtime();
+    const k = new Keyboard(rt);
+
+    t.strictEqual(k.getLastKeyPressed(), '');
+    k.postData({
+        key: 'a',
+        isDown: true
+    });
+    t.strictEqual(k.getLastKeyPressed(), 'a');
+    k.postData({
+        key: 'b',
+        isDown: true
+    });
+    t.strictEqual(k.getLastKeyPressed(), 'b');
+    t.end();
+});
+
+test('holding shift and key, releasing shift, then releasing key', t => {
+    const rt = new Runtime();
+    const k = new Keyboard(rt);
+
+    // Press Shift+2 to produce @
+    k.postData({
+        key: '@',
+        isDown: true,
+        keyCode: 50
+    });
+    t.equal(k.getKeyIsDown('2'), false);
+    t.equal(k.getKeyIsDown('@'), true);
+    t.equal(k.getKeyIsDown('any'), true);
+    // Release shift, then release 2
+    k.postData({
+        key: 'Shift',
+        isDown: false,
+        keyCode: 16
+    });
+    k.postData({
+        key: '2',
+        isDown: false,
+        keyCode: 50
+    });
+    t.equal(k.getKeyIsDown('@'), false);
+    t.equal(k.getKeyIsDown('2'), false);
+    t.equal(k.getKeyIsDown('any'), false);
+
+    t.end();
+});
+
+test('holding shift and key, releasing shift, waiting, then releasing key', t => {
+    const rt = new Runtime();
+    const k = new Keyboard(rt);
+
+    k.postData({
+        key: '@',
+        isDown: true,
+        keyCode: 50
+    });
+    t.equal(k.getKeyIsDown('2'), false);
+    t.equal(k.getKeyIsDown('@'), true);
+    t.equal(k.getKeyIsDown('any'), true);
+    k.postData({
+        key: 'Shift',
+        isDown: false,
+        keyCode: 16
+    });
+    // But 2 is still being held, so it will send a press event
+    k.postData({
+        key: '2',
+        isDown: true,
+        keyCode: 50
+    });
+    t.equal(k.getKeyIsDown('@'), false);
+    t.equal(k.getKeyIsDown('2'), true);
+    t.equal(k.getKeyIsDown('any'), true);
+    // And now we release 2
+    k.postData({
+        key: '2',
+        isDown: false,
+        keyCode: 50
+    });
+    t.equal(k.getKeyIsDown('@'), false);
+    t.equal(k.getKeyIsDown('2'), false);
+    t.equal(k.getKeyIsDown('any'), false);
+
+    t.end();
+});