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_extension_buttons.js

@@ -0,0 +1,83 @@
+const {test} = require('tap');
+const htmlparser = require('htmlparser2');
+const VM = require('../../src/virtual-machine');
+const BlockType = require('../../src/extension-support/block-type');
+
+test('buttons', t => {
+    const vm = new VM();
+    let buttonRunCount = 0;
+    vm.extensionManager._registerInternalExtension({
+        'getInfo': () => ({
+            id: 'test',
+            name: 'Test',
+            blocks: [
+                {
+                    blockType: BlockType.BUTTON,
+                    text: 'button text <>',
+                    func: 'callback &"\'<>'
+                },
+                {
+                    blockType: BlockType.BUTTON,
+                    text: 'make variable <>',
+                    func: 'MAKE_A_VARIABLE'
+                },
+                {
+                    blockType: BlockType.BUTTON,
+                    text: 'make procedure ""',
+                    func: 'MAKE_A_PROCEDURE'
+                },
+                {
+                    blockType: BlockType.BUTTON,
+                    text: 'make list &&',
+                    func: 'MAKE_A_LIST'
+                }
+            ]
+        }),
+        'callback &"\'<>': () => {
+            buttonRunCount++;
+        }
+    });
+
+    const xml = vm.runtime.getBlocksXML();
+    t.equal(xml.length, 1);
+
+    const parsed = htmlparser.parseDOM(xml[0].xml, {
+        decodeEntities: true
+    });
+    t.equal(parsed.length, 1);
+
+    const category = parsed[0];
+    t.equal(category.children.length, 4);
+
+    const customButton = category.children[0];
+    t.equal(customButton.name, 'button');
+    t.equal(customButton.attribs.text, 'button text <>');
+    t.equal(customButton.attribs.callbackkey, 'EXTENSION_CALLBACK');
+    t.equal(customButton.attribs.callbackdata, 'test_callback &"\'<>');
+
+    const makeVariable = category.children[1];
+    t.equal(makeVariable.attribs.text, 'make variable <>');
+    t.equal(makeVariable.attribs.callbackkey, 'MAKE_A_VARIABLE');
+
+    const makeProcedure = category.children[2];
+    t.equal(makeProcedure.attribs.text, 'make procedure ""');
+    t.equal(makeProcedure.attribs.callbackkey, 'MAKE_A_PROCEDURE');
+
+    const makeList = category.children[3];
+    t.equal(makeList.attribs.text, 'make list &&');
+    t.equal(makeList.attribs.callbackkey, 'MAKE_A_LIST');
+
+    for (let i = 1; i <= 3; i++) {
+        const builtinButton = category.children[i];
+        t.equal(builtinButton.name, 'button');
+        t.equal(builtinButton.attribs.callbackdata, undefined);
+    }
+
+    t.equal(buttonRunCount, 0);
+    vm.handleExtensionButtonPress(customButton.attribs.callbackdata);
+    t.equal(buttonRunCount, 1);
+    vm.handleExtensionButtonPress(customButton.attribs.callbackdata);
+    t.equal(buttonRunCount, 2);
+
+    t.end();
+});