Unimplement JsExpressionable from JsCallback

demos/_unit-test/sse.php

@@ -19,11 +19,10 @@
 $sse->setUrlTrigger('see_test');
 
 $v->js(true, $sse->set(function () use ($sse) {
-    $sse->send(new JsExpression('console.log(\'test\')'));
-    $sse->send(new JsExpression('console.log(\'test\')'));
-    $sse->send(new JsExpression('console.log(\'test\')'));
-    $sse->send(new JsExpression('console.log(\'test\')'));
+    for ($i = 0; $i < 4; ++$i) {
+        $sse->send(new JsExpression('console.log([])', ['test ' . $i]));
+    }
 
     // non-SSE way
     return new JsToast('SSE sent, see browser console log');
-}));
+})->jsExecute());

demos/form-control/multiline.php

@@ -18,7 +18,7 @@
 $inventory = new MultilineItem($app->db);
 $inventory->getField($inventory->fieldName()->item)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 2]];
 $inventory->getField($inventory->fieldName()->inv_date)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 2]];
-$inventory->getField($inventory->fieldName()->inv_date)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 2]];
+$inventory->getField($inventory->fieldName()->inv_time)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 2]];
 $inventory->getField($inventory->fieldName()->country_id)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 3]];
 $inventory->getField($inventory->fieldName()->qty)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 2]];
 $inventory->getField($inventory->fieldName()->box)->ui['multiline'] = [Form\Control\Multiline::TABLE_CELL => ['width' => 2]];

docs/callbacks.rst

@@ -210,7 +210,7 @@ When you trigger callback, you'll see the output::
     {"success": true, "message": "Success", "eval": "alert(\"ok\")"}
 
 This is how JsCallback renders actions and sends them back to the browser. In order to retrieve and execute actions,
-you'll need a JavaScript routine. Luckily JsCallback also implements JsExpressionable, so it, in itself is an action.
+you'll need a JavaScript routine. Luckily JsCallback can be passed to :php:meth:`View::on()` as a JS action.
 
 Let me try this again. JsCallback is an :ref:`js_action` which will execute request towards a callback-URL that will
 execute PHP method returning one or more :ref:`js_action` which will be received and executed by the original action.

src/CardDeck.php

@@ -218,9 +218,9 @@ protected function initActionExecutor(Model\UserAction $action): ExecutorInterfa
      * Return proper js statement for afterExecute hook on action executor
      * depending on return type, model loaded and action scope.
      *
-     * @param string|array|JsExpressionable|Model|null $return
+     * @param string|JsExpressionable|array<int, JsExpressionable>|Model|null $return
      *
-     * @return array|object
+     * @return JsExpressionable|array<int, JsExpressionable>
      */
     protected function jsExecute($return, Model\UserAction $action)
     {
@@ -242,10 +242,9 @@ protected function jsExecute($return, Model\UserAction $action)
     }
 
     /**
-     * Return jsNotifier object.
      * Override this method for setting notifier based on action or model value.
      */
-    protected function getNotifier(Model\UserAction $action, string $msg = null): object
+    protected function getNotifier(Model\UserAction $action, string $msg = null): JsExpressionable
     {
         $notifier = Factory::factory($this->notifyDefault);
         if ($msg) {
@@ -257,6 +256,8 @@ protected function getNotifier(Model\UserAction $action, string $msg = null): ob
 
     /**
      * Js expression return when action afterHook executor return a Model.
+     *
+     * @return array<int, JsExpressionable>
      */
     protected function jsModelReturn(Model\UserAction $action, string $msg = 'Done!'): array
     {

src/Console.php

@@ -131,14 +131,9 @@ public function set($fx = null, $event = null)
         return $this;
     }
 
-    /**
-     * Return JavaScript expression to execute console.
-     *
-     * @return JsExpressionable
-     */
-    public function jsExecute()
+    public function jsExecute(): JsExpressionable
     {
-        return $this->sse;
+        return $this->sse->jsExecute();
     }
 
     private function escapeOutputHtml(string $message): string

src/Crud.php

@@ -157,6 +157,8 @@ protected function initActionExecutor(Model\UserAction $action)
      * depending on return type, model loaded and action scope.
      *
      * @param string|null $return
+     *
+     * @return array<int, JsExpressionable>
      */
     protected function jsExecute($return, Model\UserAction $action): array
     {

src/JsCallback.php

@@ -4,7 +4,7 @@
 
 namespace Atk4\Ui;
 
-class JsCallback extends Callback implements JsExpressionable
+class JsCallback extends Callback
 {
     /** @var array Holds information about arguments passed in to the callback. */
     public $args = [];
@@ -47,7 +47,7 @@ protected function flattenArray(array $response): array
         return $res;
     }
 
-    public function jsRender(): string
+    public function jsExecute(): JsExpression
     {
         $this->getApp(); // assert has App
 
@@ -57,7 +57,7 @@ public function jsRender(): string
             'confirm' => $this->confirm,
             'apiConfig' => $this->apiConfig,
             'storeName' => $this->storeName,
-        ])->jsRender();
+        ]);
     }
 
     /**

src/JsExpression.php

@@ -34,7 +34,7 @@ public function jsRender(): string
         $namelessCount = 0;
         $res = preg_replace_callback(
             '~\[[\w]*\]|{[\w]*}~',
-            function ($matches) use (&$namelessCount) {
+            function ($matches) use (&$namelessCount): string {
                 $identifier = substr($matches[0], 1, -1);
 
                 // Allow template to contain []
@@ -51,7 +51,7 @@ function ($matches) use (&$namelessCount) {
                 $value = $this->args[$identifier];
 
                 // no escaping for "{}"
-                if ($matches[0][0] === '{') {
+                if ($matches[0][0] === '{' && is_string($value)) {
                     return $value;
                 }
 
@@ -74,15 +74,10 @@ function ($matches) use (&$namelessCount) {
      */
     protected function _jsEncode($arg): string
     {
-        if (is_object($arg)) {
-            if ($arg instanceof JsExpressionable) {
-                $result = $arg->jsRender();
+        if (is_object($arg) && $arg instanceof JsExpressionable) {
+            $result = $arg->jsRender();
 
-                return $result;
-            }
-
-            throw (new Exception('Not sure how to represent this object in JSON'))
-                ->addMoreInfo('obj', $arg);
+            return $result;
         } elseif (is_array($arg)) {
             $array = [];
             $assoc = !array_is_list($arg);
@@ -115,7 +110,7 @@ protected function _jsEncode($arg): string
         } elseif ($arg === null) {
             $string = 'null';
         } else {
-            throw (new Exception('Unsupported argument type'))
+            throw (new Exception('Argument is not renderable to JS'))
                 ->addMoreInfo('arg', $arg);
         }
 

src/JsFunction.php

@@ -16,7 +16,7 @@ class JsFunction implements JsExpressionable
     /** @var array */
     public $fxArgs;
 
-    /** @var array */
+    /** @var array<int, JsExpressionable> */
     public $fxStatements = [];
 
     /** @var bool add preventDefault(event) to generated method */
@@ -28,12 +28,19 @@ class JsFunction implements JsExpressionable
     /** @var string Indent of target code (not one indent level) */
     public $indent = '    ';
 
+    /**
+     * @param array<int, JsExpressionable|null>|array<string, mixed> $statements
+     */
     public function __construct(array $args, array $statements)
     {
         $this->fxArgs = $args;
 
         foreach ($statements as $key => $value) {
             if (is_int($key)) {
+                if ($value === null) { // TODO this should be not needed
+                    continue;
+                }
+
                 $this->fxStatements[] = $value;
             } else {
                 $this->{$key} = $value;
@@ -56,18 +63,9 @@ public function jsRender(): string
         $output = 'function (' . implode(', ', $this->fxArgs) . ') {'
             . $pre;
         foreach ($this->fxStatements as $statement) {
-            if ($statement === null) { // TODO this should be not needed
-                continue;
-            }
-
-            if ($statement instanceof JsExpressionable) {
-                $statement = $statement->jsRender();
-            } else {
-                throw (new Exception('Incorrect statement for JsFunction'))
-                    ->addMoreInfo('statement', $statement);
-            }
+            $js = $statement->jsRender();
 
-            $output .= "\n" . $this->indent . '    ' . $statement . (!preg_match('~[;}]\s*$~', $statement) ? ';' : '');
+            $output .= "\n" . $this->indent . '    ' . $js . (!preg_match('~[;}]\s*$~', $js) ? ';' : '');
         }
 
         $output .= "\n" . $this->indent . '}';

src/JsSse.php

@@ -41,7 +41,7 @@ protected function init(): void
         }
     }
 
-    public function jsRender(): string
+    public function jsExecute(): JsExpression
     {
         $this->getApp(); // assert has App
 
@@ -53,7 +53,7 @@ public function jsRender(): string
             $options['closeBeforeUnload'] = $this->closeBeforeUnload;
         }
 
-        return (new Jquery($this->getOwner() /* TODO element and loader element should be passed explicitly */))->atkServerEvent($options)->jsRender();
+        return (new Jquery($this->getOwner() /* TODO element and loader element should be passed explicitly */))->atkServerEvent($options);
     }
 
     /**

src/UserAction/ConfirmationExecutor.php

@@ -85,9 +85,6 @@ private function jsShowAndLoad(array $urlArgs, array $apiConfig): array
         ];
     }
 
-    /**
-     * Return js expression that will trigger action executor.
-     */
     public function jsExecute(array $urlArgs = []): array
     {
         if (!$this->action) {

src/UserAction/JsExecutorInterface.php

@@ -4,13 +4,17 @@
 
 namespace Atk4\Ui\UserAction;
 
+use Atk4\Ui\JsExpressionable;
+
 /**
  * Add js trigger for executing an action.
  */
 interface JsExecutorInterface extends ExecutorInterface
 {
     /**
      * Return js expression that will trigger action executor.
+     *
+     * @return array<int, JsExpressionable>
      */
     public function jsExecute(array $urlArgs): array;
 }

src/UserAction/ModalExecutor.php

@@ -136,9 +136,6 @@ public function assignTrigger(View $view, array $urlArgs = [], string $when = 'c
         return $this;
     }
 
-    /**
-     * Generate js for triggering action.
-     */
     public function jsExecute(array $urlArgs = []): array
     {
         if (!$this->actionInitialized) {

src/View.php

@@ -960,8 +960,8 @@ public function jsReload($args = [], $afterSuccess = null, $apiConfig = [])
      * @see http://agile-ui.readthedocs.io/en/latest/js.html
      *
      * @param string $event JavaScript event
-     * @param ($action is null|array ? string|JsExpressionable|\Closure|array|UserAction\ExecutorInterface|Model\UserAction : string|array) $selector Optional jQuery-style selector
-     * @param string|JsExpressionable|\Closure|array|UserAction\ExecutorInterface|Model\UserAction|null $action code to execute
+     * @param ($action is null|array ? string|JsExpressionable|JsCallback|\Closure|array|UserAction\ExecutorInterface|Model\UserAction : string|array) $selector Optional jQuery-style selector
+     * @param string|JsExpressionable|JsCallback|\Closure|array|UserAction\ExecutorInterface|Model\UserAction|null $action code to execute
      *
      * @return ($selector is null|string ? ($action is null ? Jquery : null) : ($action is null|array ? Jquery : null))
      */
@@ -1000,6 +1000,22 @@ public function on(string $event, $selector = null, $action = null, array $defau
         $eventStatements['preventDefault'] = $defaults['preventDefault'] ?? true;
         $eventStatements['stopPropagation'] = $defaults['stopPropagation'] ?? true;
 
+        $lazyJsRenderFx = function (\Closure $fx): JsExpressionable {
+            return new class($fx) implements JsExpressionable {
+                public \Closure $fx;
+
+                public function __construct(\Closure $fx)
+                {
+                    $this->fx = $fx;
+                }
+
+                public function jsRender(): string
+                {
+                    return ($this->fx)()->jsRender();
+                }
+            };
+        };
+
         // Dealing with callback action.
         if ($action instanceof \Closure || (is_array($action) && ($action[0] ?? null) instanceof \Closure)) {
             if (is_array($action)) {
@@ -1021,7 +1037,7 @@ public function on(string $event, $selector = null, $action = null, array $defau
                 return $action($chain, ...$args);
             }, $arguments);
 
-            $actions[] = $cb;
+            $actions[] = $lazyJsRenderFx(fn () => $cb->jsExecute());
         } elseif ($action instanceof UserAction\ExecutorInterface || $action instanceof Model\UserAction) {
             // Setup UserAction executor.
             $ex = $action instanceof Model\UserAction ? $this->getExecutorFactory()->create($action, $this) : $action;
@@ -1044,11 +1060,13 @@ public function on(string $event, $selector = null, $action = null, array $defau
                 if ($defaults['apiConfig'] ?? null) {
                     $ex->apiConfig = $defaults['apiConfig'];
                 }
-                $actions[] = $ex;
+                $actions[] = $lazyJsRenderFx(fn () => $ex->jsExecute());
                 $ex->executeModelAction($arguments);
             } else {
                 throw new Exception('Executor must be of type UserAction\JsCallbackExecutor or extend View and implement UserAction\JsExecutorInterface');
             }
+        } elseif ($action instanceof JsCallback) {
+            $actions[] = $lazyJsRenderFx(fn () => $action->jsExecute());
         } elseif (is_array($action)) {
             $actions = array_merge($actions, $action);
         } else {