Updated examples, added onEnter method to contexts

examples/commandevents.php

@@ -36,9 +36,9 @@ $myShell->setPrompt("test>");
 
 // Create an anonymous context and add a command
 $ctx = $myShell->createContext("root");
-$ctx->addCommand("hello", function () {
-    echo "Hello World!\n";
-});
+$ctx->addCommand("hello", function ($who="World") {
+    echo "Hello {$who}!\n";
+}, [ "help"=>"Say hello", "args"=>"who" ]);
 
 // Run the shell
 $myShell->run();

examples/contexts.php

@@ -6,21 +6,46 @@ use NoccyLabs\Shell\Shell;
 use NoccyLabs\Shell\Context;
 
 $shell = new Shell();
-$shell->addListener("prompt", function ($event, $shell) {
-    $name = $shell->getContextPath();
-    $shell->setPrompt("shell{$name}> ");
+$shell->addListener(Shell::EVT_UPDATE_PROMPT, function ($event) {
+    $name = $event->shell->getContextPath();
+    $event->shell->setPrompt("shell{$name}> ");
 });
 
-$root = new Context();
-$root->addCommand("test", function () {
-    echo "It works!\n";
-});
-$root->addCommand("context", function ($name) {
-    $context = new Context($name);
-    $context->name = $name;
-    return $context;
-});
-$shell->pushContext($root);
+class MyContext extends Context
+{
+    public function __construct()
+    {
+        // Remember to call the parent constructor if you want to use
+        // the doccomment syntax to mark commands, as demonstrated
+        // at the end of this class for the bar command.
+        parent::__construct();
+        $this->addCommand("foo",[$this,"foo"],[
+            'help' => "Foo command"
+        ]);
+    }
+    
+    public function onEnter()
+    {
+        echo "Entering context!\n";
+    }
+    
+    public function foo()
+    {
+        echo "Foo!\n";
+    }
+    
+    /**
+     * @command bar
+     * @args
+     * @help Bar command
+     */
+    public function bar()
+    {
+        echo "Bar!\n";
+    }
+}
+
+$shell->pushContext(new MyContext());
 
 
 $shell->run();

lib/Context.php

@@ -66,6 +66,11 @@ class Context
         $this->findCommands();
     }
 
+    public function onEnter()
+    {
+    }
+
+
     protected function findCommands()
     {
         $refl = new \ReflectionClass(get_called_class());

lib/Shell.php

@@ -113,6 +113,7 @@ class Shell
         }
         $context->setShell($this);
         $this->context = $context;
+        $context->onEnter();
         $this->dispatchEvent(self::EVT_CONTEXT_CHANGED);
     }