Refactoring for v5.2 (#273)

Author: Archmonger

.github/workflows/test-python.yml

@@ -46,3 +46,18 @@ jobs:
               run: pip install --upgrade pip hatch uv
             - name: Check Python formatting
               run: hatch fmt src tests --check
+
+    python-types:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+            - uses: oven-sh/setup-bun@v2
+              with:
+                  bun-version: latest
+            - uses: actions/setup-python@v5
+              with:
+                  python-version: 3.x
+            - name: Install Python Dependencies
+              run: pip install --upgrade pip hatch uv
+            - name: Check Python formatting
+              run: hatch run python:type_check

CHANGELOG.md

@@ -23,6 +23,10 @@ Don't forget to remove deprecated code on each major release!
 
 -   Automatically convert Django forms to ReactPy forms via the new `reactpy_django.components.django_form` component!
 
+### Changed
+
+-   Refactoring of internal code to improve maintainability. No changes to public/documented API.
+
 ## [5.1.1] - 2024-12-02
 
 ### Fixed

docs/examples/python/example/models.py

@@ -0,0 +1,4 @@
+from django.db import models
+
+
+class TodoItem(models.Model): ...

docs/examples/python/pyscript_ffi.py

@@ -0,0 +1,14 @@
+from pyscript import document, window
+from reactpy import component, html
+
+
+@component
+def root():
+    def on_click(event):
+        my_element = document.querySelector("#example")
+        my_element.innerText = window.location.hostname
+
+    return html.div(
+        {"id": "example"},
+        html.button({"onClick": on_click}, "Click Me!"),
+    )

docs/src/about/contributing.md

@@ -62,6 +62,7 @@ By utilizing `hatch`, the following commands are available to manage the develop
 | `hatch fmt --formatter` | Run only formatters |
 | `hatch run javascript:check` | Run the JavaScript linter/formatter |
 | `hatch run javascript:fix` | Run the JavaScript linter/formatter and write fixes to disk |
+| `hatch run python:type_check` | Run the Python type checker |
 
 ??? tip "Configure your IDE for linting"
 

docs/src/reference/template-tag.md

@@ -214,9 +214,17 @@ The entire file path provided is loaded directly into the browser, and must have
         {% include "../../examples/python/pyodide_js_module.py" %}
         ```
 
-    **PyScript FFI**
+    **PyScript Foreign Function Interface (FFI)**
 
-    ...
+    PyScript FFI has similar functionality to Pyodide's `js` module, but utilizes a different API.
+
+    There are two importable modules available that are available within the FFI interface: `window` and `document`.
+
+    === "root.py"
+
+        ```python
+        {% include "../../examples/python/pyscript_ffi.py" %}
+        ```
 
     **PyScript JS Modules**
 

pyproject.toml

@@ -75,7 +75,7 @@ installer = "uv"
 [[tool.hatch.build.hooks.build-scripts.scripts]]
 commands = [
   "bun install --cwd src/js",
-  "bun build src/js/src/index.tsx --outfile src/reactpy_django/static/reactpy_django/client.js --minify",
+  "bun build src/js/src/index.ts --outfile src/reactpy_django/static/reactpy_django/client.js --minify",
   'cd src/build_scripts && python copy_dir.py "src/js/node_modules/@pyscript/core/dist" "src/reactpy_django/static/reactpy_django/pyscript"',
   'cd src/build_scripts && python copy_dir.py "src/js/node_modules/morphdom/dist" "src/reactpy_django/static/reactpy_django/morphdom"',
 ]
@@ -95,6 +95,8 @@ extra-dependencies = [
   "tblib",
   "servestatic",
   "django-bootstrap5",
+  "decorator",
+
 ]
 matrix-name-format = "{variable}-{value}"
 
@@ -185,6 +187,16 @@ linkcheck = [
 deploy_latest = ["cd docs && mike deploy --push --update-aliases {args} latest"]
 deploy_develop = ["cd docs && mike deploy --push develop"]
 
+################################
+# >>> Hatch Python Scripts <<< #
+################################
+
+[tool.hatch.envs.python]
+extra-dependencies = ["django-stubs", "channels-redis", "pyright"]
+
+[tool.hatch.envs.python.scripts]
+type_check = ["pyright src"]
+
 ############################
 # >>> Hatch JS Scripts <<< #
 ############################

src/js/src/client.ts

@@ -30,14 +30,14 @@ export class ReactPyDjangoClient
           this.prerenderElement.remove();
           this.prerenderElement = null;
         }
-        if (this.offlineElement) {
+        if (this.offlineElement && this.mountElement) {
           this.mountElement.hidden = true;
           this.offlineElement.hidden = false;
         }
       },
       onOpen: () => {
         // If offlineElement exists, hide it and show the mountElement
-        if (this.offlineElement) {
+        if (this.offlineElement && this.mountElement) {
           this.offlineElement.hidden = true;
           this.mountElement.hidden = false;
         }

src/js/src/components.ts

@@ -0,0 +1,64 @@
+import { DjangoFormProps } from "./types";
+import React from "react";
+import ReactDOM from "react-dom";
+/**
+ * Interface used to bind a ReactPy node to React.
+ */
+export function bind(node) {
+  return {
+    create: (type, props, children) =>
+      React.createElement(type, props, ...children),
+    render: (element) => {
+      ReactDOM.render(element, node);
+    },
+    unmount: () => ReactDOM.unmountComponentAtNode(node),
+  };
+}
+
+export function DjangoForm({
+  onSubmitCallback,
+  formId,
+}: DjangoFormProps): null {
+  React.useEffect(() => {
+    const form = document.getElementById(formId) as HTMLFormElement;
+
+    // Submission event function
+    const onSubmitEvent = (event) => {
+      event.preventDefault();
+      const formData = new FormData(form);
+
+      // Convert the FormData object to a plain object by iterating through it
+      // If duplicate keys are present, convert the value into an array of values
+      const entries = formData.entries();
+      const formDataArray = Array.from(entries);
+      const formDataObject = formDataArray.reduce((acc, [key, value]) => {
+        if (acc[key]) {
+          if (Array.isArray(acc[key])) {
+            acc[key].push(value);
+          } else {
+            acc[key] = [acc[key], value];
+          }
+        } else {
+          acc[key] = value;
+        }
+        return acc;
+      }, {});
+
+      onSubmitCallback(formDataObject);
+    };
+
+    // Bind the event listener
+    if (form) {
+      form.addEventListener("submit", onSubmitEvent);
+    }
+
+    // Unbind the event listener when the component dismounts
+    return () => {
+      if (form) {
+        form.removeEventListener("submit", onSubmitEvent);
+      }
+    };
+  }, []);
+
+  return null;
+}

src/js/src/index.ts

@@ -0,0 +1,2 @@
+export { DjangoForm, bind } from "./components";
+export { mountComponent } from "./mount";