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<?php |
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/** |
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* TActivePanel file. |
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* |
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* @author Wei Zhuo <weizhuo[at]gamil[dot]com> |
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* @link https://github.com/pradosoft/prado |
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* @license https://github.com/pradosoft/prado/blob/master/LICENSE |
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*/ |
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namespace Prado\Web\UI\ActiveControls; |
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/** |
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* Load active control adapter. |
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*/ |
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use Prado\Prado; |
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use Prado\Web\UI\WebControls\TPanel; |
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/** |
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* TActivePanel is the TPanel active control counterpart. |
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* |
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* TActivePanel allows the client-side panel contents to be updated during a |
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* callback response using the {@see render} method. |
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* |
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* Example: Assume $param is an instance of TCallbackEventParameter attached to |
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* the OnCallback event of a TCallback with ID "callback1", and |
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* "panel1" is the ID of a TActivePanel. |
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* ```php |
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* function callback1_requested($sender, $param) |
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* { |
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* $this->panel1->render($param->getNewWriter()); |
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* } |
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* ``` |
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* |
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* @author Wei Zhuo <weizhuo[at]gmail[dot]com> |
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* @since 3.1 |
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* @method TActiveControlAdapter getAdapter() |
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*/ |
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class TActivePanel extends TPanel implements IActiveControl |
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{ |
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/** |
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* Creates a new callback control, sets the adapter to |
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* TActiveControlAdapter. If you override this class, be sure to set the |
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* adapter appropriately by, for example, by calling this constructor. |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(); |
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$this->setAdapter(new TActiveControlAdapter($this)); |
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} |
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/** |
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* @return TBaseActiveControl standard active control options. |
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*/ |
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public function getActiveControl() |
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{ |
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return $this->getAdapter()->getBaseActiveControl(); |
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} |
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/** |
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* Adds attribute id to the renderer. |
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* @param \Prado\Web\UI\THtmlWriter $writer the writer used for the rendering purpose |
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*/ |
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protected function addAttributesToRender($writer) |
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{ |
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$writer->addAttribute('id', $this->getClientID()); |
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parent::addAttributesToRender($writer); |
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} |
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/** |
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* Renders and replaces the panel's content on the client-side. |
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* When render() is called before the OnPreRender event, such as when render() |
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* is called during a callback event handler, the rendering |
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* is defered until OnPreRender event is raised. |
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* @param \Prado\Web\UI\THtmlWriter $writer html writer |
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*/ |
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public function render($writer) |
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{ |
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if ($this->getHasPreRendered()) { |
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parent::render($writer); |
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if ($this->getActiveControl()->canUpdateClientSide()) { |
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$this->getPage()->getCallbackClient()->replaceContent($this, $writer); |
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} |
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} else { |
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$this->getPage()->getAdapter()->registerControlToRender($this, $writer); |
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if ($this->getHasControls()) { |
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// If we update a TActivePanel on callback, |
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// We shouldn't update all childs, because the whole content will be replaced by |
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// the parent |
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foreach ($this->findControlsByType(\Prado\Web\UI\ActiveControls\IActiveControl::class, false) as $control) { |
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$control->getActiveControl()->setEnableUpdate(false); |
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} |
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} |
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} |
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} |
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} |
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pradosoft /
prado
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