Commit f3b057c4 by Qiang Xue

code refactoring.

parent f9aa9a18
...@@ -21,19 +21,29 @@ namespace yii\base; ...@@ -21,19 +21,29 @@ namespace yii\base;
*/ */
class Behavior extends Object class Behavior extends Object
{ {
/**
* @var Component the owner component
*/
private $_owner; private $_owner;
/** /**
* Declares event handlers for the [[owner]]'s events. * Declares event handlers for the [[owner]]'s events.
* *
* Child classes may override this method to declare which methods in this behavior * Child classes may override this method to declare what PHP callbacks should
* should be attached to which events of the [[owner]] component. * be attached to the events of the [[owner]] component.
* The methods will be attached to the [[owner]]'s events when the behavior is *
* The callbacks will be attached to the [[owner]]'s events when the behavior is
* attached to the owner; and they will be detached from the events when * attached to the owner; and they will be detached from the events when
* the behavior is detached from the component. * the behavior is detached from the component.
* *
* The method should return an array whose keys are the names of the owner's events * The callbacks can be any of the followings:
* and values are the names of the behavior methods. For example, *
* - method in this behavior: `'handleOnClick'`, equivalent to `array($this, 'handleOnClick')`
* - object method: `array($object, 'handleOnClick')`
* - static method: `array('Page', 'handleOnClick')`
* - anonymous function: `function($event) { ... }`
*
* The following is an example:
* *
* ~~~ * ~~~
* array( * array(
...@@ -59,8 +69,8 @@ class Behavior extends Object ...@@ -59,8 +69,8 @@ class Behavior extends Object
public function attach($owner) public function attach($owner)
{ {
$this->_owner = $owner; $this->_owner = $owner;
foreach($this->events() as $event=>$handler) { foreach ($this->events() as $event => $handler) {
$owner->attachEventHandler($event, array($this, $handler)); $owner->attachEventHandler($event, is_string($handler) ? array($this, $handler) : $handler);
} }
} }
...@@ -73,8 +83,8 @@ class Behavior extends Object ...@@ -73,8 +83,8 @@ class Behavior extends Object
*/ */
public function detach($owner) public function detach($owner)
{ {
foreach($this->events() as $event=>$handler) { foreach ($this->events() as $event => $handler) {
$owner->detachEventHandler($event, array($this, $handler)); $owner->detachEventHandler($event, is_string($handler) ? array($this, $handler) : $handler);
} }
$this->_owner = null; $this->_owner = null;
} }
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment