invent-framework · iliketocode2 · Apr 6, 2026 · Apr 6, 2026 · Apr 7, 2026 · Apr 8, 2026
diff --git a/.gitignore b/.gitignore
@@ -120,4 +120,8 @@ test_suite.tar.gz
 invent.min.tar.gz
 static/default.css
 static/default.min.css
-static/*.zip
+static/*.zip
+
+# All temp files
+/temp
+temp/
diff --git a/examples/tests/chart/chart_helper.py b/examples/tests/chart/chart_helper.py
@@ -0,0 +1,10 @@
+def run(chart_type, data, options, plugin_code):
+    namespace = {
+        "chart_type": chart_type,
+        "data": data,
+        "options": options,
+    }
+    exec(plugin_code, namespace, namespace)
+    if "result" not in namespace:
+        raise ValueError("Plugin code must assign to `result`.")
+    return namespace["result"]
diff --git a/examples/tests/chart/config.json b/examples/tests/chart/config.json
@@ -0,0 +1,6 @@
+{
+  "files": {
+    "/static/invent.min.tar.gz": "./*",
+    "./chart_helper.py": ""
+  }
+}
diff --git a/examples/tests/chart/index.html b/examples/tests/chart/index.html
@@ -0,0 +1,23 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>Chart Donkey Interactive Test</title>
+
+    <!-- mini-coi must be first for donkey worker support. -->
+    <script src="/mini-coi.js"></script>
+
+    <link
+      rel="stylesheet"
+      href="https://pyscript.net/releases/2026.3.1/core.css"
+    >
+    <script
+      type="module"
+      src="https://pyscript.net/releases/2026.3.1/core.js"
+    ></script>
+  </head>
+  <body>
+    <script type="mpy" src="./main.py" config="./config.json"></script>
+  </body>
+</html>
diff --git a/examples/tests/chart/main.py b/examples/tests/chart/main.py
@@ -0,0 +1,159 @@
+import invent
+import sys
+import os
+from pathlib import Path
+from invent.tools import make_helper
+from invent.ui import *
+
+from invent.tools.common_ui import (
+    back_link_widget,
+    fail_html,
+    make_status_setter,
+    pass_html,
+    publish_run,
+    wait_html,
+)
+
+await invent.setup()
+
+
+chart = Chart(
+    chart_type="bar",
+    data={
+        "labels": ["A", "B", "C"],
+        "datasets": [
+            {
+                "label": "Values",
+                "data": [3, 5, 2],
+                "backgroundColor": "rgba(54, 162, 235, 0.5)",
+            }
+        ],
+    },
+    options={"plugins": {"legend": {"display": True}}},
+)
+
+status_label = Label(text="Donkey starting...")
+_set_chart_status = make_status_setter(invent, status_label, channel="chart")
+
+default_code = (
+    "# Inputs: chart_type, data, options\n"
+    "# Assign a dict to result with optional data/options keys.\n"
+    "new_data = dict(data)\n"
+    "datasets = [dict(ds) for ds in data.get('datasets', [])]\n"
+    "if datasets:\n"
+    "    first = dict(datasets[0])\n"
+    "    values = list(first.get('data', []))\n"
+    "    first['data'] = [value * 2 for value in values]\n"
+    "    first['label'] = 'Values x2'\n"
+    "    datasets[0] = first\n"
+    "new_data['datasets'] = datasets\n"
+    "result = {'data': new_data}\n"
+)
+
+code_editor = CodeEditor(
+    code=default_code,
+    language="python",
+    min_height="260px",
+)
+
+assert_worker = Html(html=wait_html("Worker not started."))
+assert_run = Html(html=wait_html("Code not run."))
+
+HELPER_CHANNEL = "chart-helper"
+
+make_helper(src="chart_helper.py", channel=HELPER_CHANNEL)
+
+
+def handle_helper_status(msg):
+    state = getattr(msg, "state", None)
+    detail = getattr(msg, "detail", None)
+    if state == "starting":
+        _set_chart_status("Starting donkey worker...")
+    elif state == "ready":
+        _set_chart_status("Donkey ready. Press Run Code.")
+        assert_worker.html = pass_html("Donkey worker ready.")
+    elif state == "busy":
+        _set_chart_status("Running code...")
+    elif state == "error":
+        _set_chart_status(f"Failed to start donkey: {detail}")
+        assert_worker.html = fail_html(f"Donkey worker failed: {detail}")
+
+
+def handle_helper_result(msg):
+    if msg.function != "run":
+        return
+    if msg.error:
+        _set_chart_status(f"Worker error: {msg.error}")
+        assert_run.html = fail_html(f"Code run failed: {msg.error}")
+        return
+    payload = msg.result
+    if not isinstance(payload, dict):
+        assert_run.html = fail_html("Result must be a dict.")
+        _set_chart_status("Invalid chart result.")
+        return
+    if "data" in payload:
+        chart.data = payload["data"]
+    if "options" in payload:
+        chart.options = payload["options"]
+    assert_run.html = pass_html("Code run succeeded.")
+    _set_chart_status("Done. Chart updated from donkey result.")
+
+
+invent.subscribe(handle_helper_status, HELPER_CHANNEL, "status")
+invent.subscribe(handle_helper_result, HELPER_CHANNEL, "result")
+
+
+async def handle_controls(message):
+    if getattr(message.source, "name", "") != "run_chart_code":
+        return
+    publish_run(
+        invent,
+        channel=HELPER_CHANNEL,
+        function="run",
+        args=[
+            chart.chart_type,
+            chart.data,
+            chart.options,
+            code_editor.code or "",
+        ],
+    )
+
+
+invent.subscribe(
+    handle_controls,
+    to_channel="chart-controls",
+    when_subject=["press"],
+)
+
+app = invent.App(
+    name="Chart Donkey Interactive Test",
+    pages=[
+        Page(
+            id="chart-donkey-test",
+            children=[
+                back_link_widget(),
+                Label(text="# Chart Donkey Interactive Test"),
+                Label(
+                    text=(
+                        "Run Python code in a donkey worker to transform "
+                        "chart data and apply the result back to the "
+                        "widget."
+                    )
+                ),
+                chart,
+                Button(
+                    text="Run Code",
+                    name="run_chart_code",
+                    channel="chart-controls",
+                ),
+                code_editor,
+                status_label,
+                Label(text="## Assertions"),
+                assert_worker,
+                assert_run,
+            ],
+        ),
+    ],
+)
+
+invent.go()
diff --git a/examples/tests/codeeditor/codeeditor_helper.py b/examples/tests/codeeditor/codeeditor_helper.py
@@ -0,0 +1,6 @@
+def run(editor_code, plugin_code):
+    namespace = {"editor_code": editor_code}
+    exec(plugin_code, namespace, namespace)
+    if "result" not in namespace:
+        raise ValueError("Plugin code must assign to `result`.")
+    return namespace["result"]
diff --git a/examples/tests/codeeditor/config.json b/examples/tests/codeeditor/config.json
@@ -0,0 +1,6 @@
+{
+    "files": {
+        "/static/invent.min.tar.gz": "./*",
+        "./codeeditor_helper.py": ""
+    }
+}
diff --git a/examples/tests/codeeditor/index.html b/examples/tests/codeeditor/index.html
@@ -0,0 +1,23 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>CodeEditor Donkey Interactive Test</title>
+
+    <!-- mini-coi must be first for donkey worker support. -->
+    <script src="/mini-coi.js"></script>
+
+    <link
+      rel="stylesheet"
+      href="https://pyscript.net/releases/2026.3.1/core.css"
+    >
+    <script
+      type="module"
+      src="https://pyscript.net/releases/2026.3.1/core.js"
+    ></script>
+  </head>
+  <body>
+    <script type="mpy" src="./main.py" config="./config.json"></script>
+  </body>
+</html>