* Prado 3.3.0

1 files changed, 159 insertions, 0 deletions

diff --git a/lib/prado/framework/Web/UI/ActiveControls/TActiveLinkButton.php b/lib/prado/framework/Web/UI/ActiveControls/TActiveLinkButton.php
new file mode 100644
index 0000000..aaf2d35
--- /dev/null
+++ b/lib/prado/framework/Web/UI/ActiveControls/TActiveLinkButton.php
@@ -0,0 +1,159 @@
+<?php
+/**
+ * TActiveLinkButton class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
+ * @link https://github.com/pradosoft/prado
+ * @copyright Copyright &copy; 2005-2015 The PRADO Group
+ * @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
+ * @package System.Web.UI.ActiveControls
+ */
+
+/**
+ * Load active control adapter.
+ */
+Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter');
+
+/**
+ * TActiveLinkButton is the active control counter part to TLinkButton.
+ *
+ * When a TActiveLinkButton is clicked, rather than a normal post back request a
+ * callback request is initiated.
+ *
+ * The {@link onCallback OnCallback} event is raised during a callback request
+ * and it is raise <b>after</b> the {@link onClick OnClick} event.
+ *
+ * When the {@link TBaseActiveCallbackControl::setEnableUpdate ActiveControl.EnableUpdate}
+ * property is true, changing the {@link setText Text} property during callback request
+ * will update the link text upon callback response completion.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TActiveLinkButton extends TLinkButton implements IActiveControl, ICallbackEventHandler
+{
+	/**
+	 * Creates a new callback control, sets the adapter to
+	 * TActiveControlAdapter. If you override this class, be sure to set the
+	 * adapter appropriately by, for example, by calling this constructor.
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->setAdapter(new TActiveControlAdapter($this));
+	}
+
+	/**
+	 * @return TBaseActiveCallbackControl standard callback control options.
+	 */
+	public function getActiveControl()
+	{
+		return $this->getAdapter()->getBaseActiveControl();
+	}
+
+	/**
+	 * @return TCallbackClientSide client side request options.
+	 */
+	public function getClientSide()
+	{
+		return $this->getAdapter()->getBaseActiveControl()->getClientSide();
+	}
+
+	/**
+	 * Raises the callback event. This method is required by
+	 * {@link ICallbackEventHandlerICallbackEventHandler} interface. If
+	 * {@link getCausesValidation CausesValidation} is true, it will
+	 * invoke the page's {@link TPage::validate validate} method first. It will raise
+	 * {@link onClick OnClick} event first and then the {@link onCallback OnCallback}
+	 * event.
+	 * This method is mainly used by framework and control developers.
+	 * @param TCallbackEventParameter the event parameter
+	 */
+ 	public function raiseCallbackEvent($param)
+	{
+		$this->raisePostBackEvent($param);
+		$this->onCallback($param);
+	}
+
+	/**
+	 * This method is invoked when a callback is requested. The method raises
+	 * 'OnCallback' event to fire up the event handlers. If you override this
+	 * method, be sure to call the parent implementation so that the event
+	 * handler can be invoked.
+	 * @param TCallbackEventParameter event parameter to be passed to the event handlers
+	 */
+	public function onCallback($param)
+	{
+		$this->raiseEvent('OnCallback', $this, $param);
+	}
+
+	/**
+	 * Updates the link text on the client-side if the
+	 * {@link setEnableUpdate EnableUpdate} property is set to true.
+	 * @param string caption of the button
+	 */
+	public function setText($value)
+	{
+		parent::setText($value);
+		if($this->getActiveControl()->canUpdateClientSide())
+			$this->getPage()->getCallbackClient()->update($this, $value);
+	}
+
+	/**
+	 * Override parent implementation, no javascript is rendered here instead
+	 * the javascript required for active control is registered in {@link addAttributesToRender}.
+	 */
+	protected function renderClientControlScript($writer)
+	{
+	}
+
+	/**
+	 * Ensure that the ID attribute is rendered and registers the javascript code
+	 * for initializing the active control.
+	 */
+	protected function addAttributesToRender($writer)
+	{
+		parent::addAttributesToRender($writer);
+		$writer->addAttribute('id',$this->getClientID());
+
+		if($this->getEnabled(true))
+		{
+			$this->getActiveControl()->registerCallbackClientScript(
+				$this->getClientClassName(), $this->getPostBackOptions());
+		}
+	}
+
+	/**
+	 * Ensures that the anchor is rendered correctly when its Enabled property
+	 * changes in a callback
+	 * @param bool enabled
+	 */
+	public function setEnabled($value)
+	{
+		parent::setEnabled($value);
+		if($this->getActiveControl()->canUpdateClientSide())
+		{
+			if($this->getEnabled(true))
+			{
+				$nop = "javascript:;//".$this->getClientID();
+				$this->getPage()->getCallbackClient()->setAttribute($this, 'href', $nop);
+
+				$this->getActiveControl()->registerCallbackClientScript(
+					$this->getClientClassName(), $this->getPostBackOptions());
+
+			} else {
+				$this->getPage()->getCallbackClient()->setAttribute($this, 'href', false);
+			}
+		}
+	}
+
+	/**
+	 * @return string corresponding javascript class name for this TActiveLinkButton.
+	 */
+	protected function getClientClassName()
+	{
+		return 'Prado.WebUI.TActiveLinkButton';
+	}
+}
+