feature #110 Adding a simpler syntax for single stimulus controller elements (weaverryan)

This PR was merged into the main branch.

Discussion
----------

Adding a simpler syntax for single stimulus controller elements

Having 1 controller per element is the main use-case. This makes that a bit nicer to do :).

```twig
<div {{ stimulus_controller('chart', { 'name': 'Likes', 'data': [1, 2, 3, 4] }) }}>
    Hello
</div>
```

Also, this makes working with controllers that don't have any values (yet) MUCH nicer:

```twig
<!-- before -->
{{ stimulus_controller({ 'chart': {} }) }}

<!-- now -->
{{ stimulus_controller('chart') }}
```

Cheers!

Commits
-------

773ead9 adding a simpler syntax for single stimulus controller elements

Author: weaverryan

README.md

@@ -207,7 +207,7 @@ See [stimulus-bridge](https://github.com/symfony/stimulus-bridge) for more detai
 For example:
 
 ```twig
-<div {{ stimulus_controller({ 'chart': { 'name': 'Likes', 'data': [1, 2, 3, 4] } }) }}>
+<div {{ stimulus_controller('chart', { 'name': 'Likes', 'data': [1, 2, 3, 4] }) }}>
     Hello
 </div>
 
@@ -223,6 +223,18 @@ For example:
 
 Any non-scalar values (like `data: [1, 2, 3, 4]`) are JSON-encoded. And all
 values are properly escaped (the string `&#x5B;` is an escaped
-`[` character, so the attribute is really `[1,2,3,4]`). 
+`[` character, so the attribute is really `[1,2,3,4]`).
+
+If you have multiple controllers on the same element, pass them all as an
+associative array in the first argument:
+
+```twig
+<div {{ stimulus_controller({
+    'chart': { 'name': 'Likes' },
+    'other-controller': { },
+) }}>
+    Hello
+</div>
+```
 
 Ok, have fun!

src/Twig/StimulusTwigExtension.php

@@ -22,10 +22,29 @@ public function getFunctions()
         ];
     }
 
-    public function renderStimulusController(Environment $env, array $data): string
+    /**
+     * @param string|array $dataOrControllerName This can either be a map of controller names
+     *                                           as keys set to their "values". Or this
+     *                                           can be a string controller name and data
+     *                                           is passed as the 2nd argument.
+     * @param array $controllerValues Array of data if a string is passed to the first argument.
+     * @return string
+     * @throws \Twig\Error\RuntimeError
+     */
+    public function renderStimulusController(Environment $env, $dataOrControllerName, array $controllerValues = []): string
     {
-        if (!$data) {
-            return '';
+        if (is_string($dataOrControllerName)) {
+            $data = [$dataOrControllerName => $controllerValues];
+        } else {
+            if ($controllerValues) {
+                throw new \InvalidArgumentException('You cannot pass an array to the first and second argument of stimulus_controller(): check the documentation.');
+            }
+
+            $data = $dataOrControllerName;
+
+            if (!$data) {
+                return '';
+            }
         }
 
         $controllers = [];

tests/IntegrationTest.php

@@ -182,79 +182,98 @@ public function testAutowireDefaultBuildArgument()
     public function provideRenderStimulusController()
     {
         yield 'empty' => [
-            'data' => [],
+            'dataOrControllerName' => [],
+            'controllerValues' => [],
             'expected' => '',
         ];
 
         yield 'single-controller-no-data' => [
-            'data' => [
+            'dataOrControllerName' => [
                 'my-controller' => [],
             ],
+            'controllerValues' => [],
             'expected' => 'data-controller="my-controller"',
         ];
 
         yield 'single-controller-scalar-data' => [
-            'data' => [
+            'dataOrControllerName' => [
                 'my-controller' => [
                     'myValue' => 'scalar-value',
                 ],
             ],
+            'controllerValues' => [],
             'expected' => 'data-controller="my-controller" data-my-controller-my-value-value="scalar-value"',
         ];
 
         yield 'single-controller-typed-data' => [
-            'data' => [
+            'dataOrControllerName' => [
                 'my-controller' => [
                     'boolean' => true,
                     'number' => 4,
                     'string' => 'str',
                 ],
             ],
+            'controllerValues' => [],
             'expected' => 'data-controller="my-controller" data-my-controller-boolean-value="1" data-my-controller-number-value="4" data-my-controller-string-value="str"',
         ];
 
         yield 'single-controller-nested-data' => [
-            'data' => [
+            'dataOrControllerName' => [
                 'my-controller' => [
                     'myValue' => ['nested' => 'array'],
                 ],
             ],
+            'controllerValues' => [],
             'expected' => 'data-controller="my-controller" data-my-controller-my-value-value="{"nested":"array"}"',
         ];
 
         yield 'multiple-controllers-scalar-data' => [
-            'data' => [
+            'dataOrControllerName' => [
                 'my-controller' => [
                     'myValue' => 'scalar-value',
                 ],
                 'another-controller' => [
                     'anotherValue' => 'scalar-value 2',
                 ],
             ],
+            'controllerValues' => [],
             'expected' => 'data-controller="my-controller another-controller" data-my-controller-my-value-value="scalar-value" data-another-controller-another-value-value="scalar-value 2"',
         ];
 
         yield 'normalize-names' => [
-            'data' => [
+            'dataOrControllerName' => [
                 '@symfony/ux-dropzone/dropzone' => [
                     'my"Key"' => true,
                 ],
             ],
+            'controllerValues' => [],
             'expected' => 'data-controller="symfony--ux-dropzone--dropzone" data-symfony--ux-dropzone--dropzone-my-key-value="1"',
         ];
+
+        yield 'short-single-controller-no-data' => [
+            'dataOrControllerName' => 'my-controller',
+            'controllerValues' => [],
+            'expected' => 'data-controller="my-controller"',
+        ];
+
+        yield 'short-single-controller-with-data' => [
+            'dataOrControllerName' => 'my-controller',
+            'controllerValues' => ['myValue' => 'scalar-value'],
+            'expected' => 'data-controller="my-controller" data-my-controller-my-value-value="scalar-value"',
+        ];
     }
 
     /**
      * @dataProvider provideRenderStimulusController
      */
-    public function testRenderStimulusController(array $data, string $expected)
+    public function testRenderStimulusController($dataOrControllerName, array $controllerValues, string $expected)
     {
         $kernel = new WebpackEncoreIntegrationTestKernel(true);
         $kernel->boot();
         $twig = $this->getTwigEnvironmentFromBootedKernel($kernel);
 
         $extension = new StimulusTwigExtension();
-        $this->assertSame($expected, $extension->renderStimulusController($twig, $data));
+        $this->assertSame($expected, $extension->renderStimulusController($twig, $dataOrControllerName, $controllerValues));
     }
 
     private function getContainerFromBootedKernel(WebpackEncoreIntegrationTestKernel $kernel)