Closure event test.
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class Button {
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public callback $OnBeforeClick;
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public callback $OnAfterClick;
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public string $Name;
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public void __construct() {
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$this->Name = 'MyButton';
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}
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public void Click() {
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$this->DoBeforeClick();
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print('Click!');
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$this->DoAfterClick();
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}
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private void DoBeforeClick() {
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if($this->OnBeforeClick) {
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callback $event = $this->OnBeforeClick;
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$event($this);
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}
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}
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private void DoAfterClick() {
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if($this->OnAfterClick) {
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callback $event = $this->OnAfterClick;
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$event($this);
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}
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}
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}
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class Program {
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void main() {
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object $MyWidget = new Button();
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$MyWidget->OnBeforeClick = void(object $Sender) { print($Sender->Name + ' (Before Click)'); };
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$MyWidget->OnAfterClick = void(object $Sender) { print($Sender->Name + ' (After Click)'); };
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$MyWidget->Click();
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}
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}
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@ -0,0 +1 @@
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MyButton (Before Click)Click!MyButton (After Click)
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