Adding settings['callbacks'] as a way to define enabled/disabled stat…

…e of helpers in settings arrays. This should replace the separate parameter.

Tests updated.

cake/libs/view/helper_collection.php

@@ -38,6 +38,9 @@ public function __construct(View $view) {
 
 /**
  * Loads/constructs a helper.  Will return the instance in the registry if it already exists.
+ * By setting `$enable` to false you can disable callbacks for a helper.  Alternatively you 
+ * can set `$settings['callbacks'] = false` to disable callbacks.  This alias is provided so that when
+ * declaring $helpers arrays you can disable callbacks on helpers.
  * 
  * @param string $helper Helper name to load
  * @param array $settings Settings for the helper.
@@ -72,7 +75,7 @@ public function load($helper, $settings = array(), $enable = true) {
 		foreach ($vars as $var) {
 			$this->_loaded[$name]->{$var} = $this->_View->{$var};
 		}
-
+		$enable = isset($settings['callbacks']) ? $settings['callbacks'] : $enable;
 		if ($enable === true) {
 			$this->_enabled[] = $name;
 		}

cake/tests/cases/libs/view/helper_collection.test.php

@@ -69,6 +69,20 @@ function testLoadWithEnableFalse() {
 
 		$this->assertFalse($this->Helpers->enabled('Html'), 'Html should be disabled');
 	}
+
+/**
+ * test that the callbacks setting disables the helper.
+ *
+ * @return void
+ */
+	function testLoadWithCallbacksFalse() {
+		$result = $this->Helpers->load('Html', array('callbacks' => false));
+		$this->assertType('HtmlHelper', $result);
+		$this->assertType('HtmlHelper', $this->Helpers->Html);
+
+		$this->assertFalse($this->Helpers->enabled('Html'), 'Html should be disabled');
+	}
+
 /**
  * test missinghelper exception
  *