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<?php |
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/** |
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* TActiveLabel class file. |
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* |
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* @author Wei Zhuo <weizhuo[at]gmail[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\TLabel; |
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/** |
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* TActiveLabel class |
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* |
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* The active control counterpart of TLabel component. When |
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* {@see \Prado\Web\UI\ActiveControls\TBaseActiveControl::setEnableUpdate ActiveControl.EnableUpdate} |
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* property is true the during a callback request, setting {@see setText Text} |
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* property will also set the text of the label on the client upon callback |
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* completion. Similarly, setting {@see setForControl ForControl} will also set |
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* the client-side "for" attribute on the label. |
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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 TActiveLabel extends TLabel 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 basic 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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* On callback response, the inner HTML of the label is updated. |
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* @param string $value the text value of the label |
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*/ |
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public function setText($value) |
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{ |
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if (parent::getText() === $value) { |
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return; |
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} |
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parent::setText($value); |
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if ($this->getActiveControl()->canUpdateClientSide()) { |
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$this->getPage()->getCallbackClient()->update($this, $value); |
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} |
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} |
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/** |
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* Sets the ID of the control that the label is associated with. |
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* The control must be locatable via {@see \Prado\Web\UI\TControl::findControl} using the ID. |
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* On callback response, the For attribute of the label is updated. |
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* @param string $value the associated control ID |
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*/ |
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public function setForControl($value) |
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{ |
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if (parent::getForControl() === $value) { |
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return; |
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} |
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parent::setForControl($value); |
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if ($this->getActiveControl()->canUpdateClientSide()) { |
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$id = $this->findControl($value)->getClientID(); |
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$this->getPage()->getCallbackClient()->setAttribute($this, 'for', $id); |
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} |
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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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pradosoft /
prado
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