Added TActiveDataGrid and TActiveRepeater from LCS

1 files changed, 105 insertions, 0 deletions

diff --git a/framework/Web/UI/ActiveControls/TActiveRepeater.php b/framework/Web/UI/ActiveControls/TActiveRepeater.php
new file mode 100644
index 00000000..941b6322
--- /dev/null
+++ b/framework/Web/UI/ActiveControls/TActiveRepeater.php
@@ -0,0 +1,105 @@
+<?php
+
+/**
+ * TActiveRepeater class
+ *
+ * TActiveRepeater represents a data bound and updatable grid control which is the
+ * active counterpart to the original {@link TRepeater} control.
+ *
+ * This component can be used in the same way as the regular datagrid, the only
+ * difference is that the active repeater uses callbacks instead of postbacks
+ * for interaction.
+ *
+ * Please refer to the original documentation of the regular counterparts for usage.
+ *
+ * @author LANDWEHR Computer und Software GmbH <programmierung@landwehr-software.de>
+ * @package System.Web.UI.ActiveControls
+ * @since 3.2
+ */
+class TActiveRepeater extends TRepeater implements IActiveControl, ISurroundable {
+
+/**
+ * Creates a new callback control, sets the adapter to
+ * TActiveControlAdapter.
+ */
+	public function __construct() {
+		parent::__construct();
+		$this->setAdapter(new TActiveControlAdapter($this));
+	}
+
+	/**
+	 * @return TBaseActiveControl standard active control options.
+	 */
+	public function getActiveControl() {
+		return $this->getAdapter()->getBaseActiveControl();
+	}
+
+	/**
+	 * Sets the data source object associated with the repeater control.
+	 * In addition, the render method of all connected pagers is called so they
+	 * get updated when the data source is changed. Also the repeater registers
+	 * itself for rendering in order to get it's content replaced on client side.
+	 * @param Traversable|array|string data source object
+	 */
+	public function setDataSource($value) {
+		parent::setDataSource($value);
+		if($this->getActiveControl()->canUpdateClientSide()) {
+			$this->renderPager();
+			$this->getPage()->getAdapter()->registerControlToRender($this,$this->getResponse()->createHtmlWriter());
+		}
+	}
+
+	/**
+	 * Returns the id of the surrounding container (span).
+	 * @return string container id
+	 */
+	public function getSurroundingTagID() {
+		return $this->ClientID.'_Container';
+	}
+
+	/**
+	 * Renders the repeater.
+	 * If the repeater did not pass the prerender phase yet, it will register itself for rendering later.
+	 * Else it will call the {@link renderRepeater()} method which will do the rendering of the repeater.
+	 * @param THtmlWriter writer for the rendering purpose
+	 */
+	public function render($writer) {
+		if($this->getHasPreRendered()) {
+			$this->renderRepeater($writer);
+			if($this->getActiveControl()->canUpdateClientSide()) $this->getPage()->getCallbackClient()->replaceContent($this->getSurroundingTagId(),$writer);
+		}
+		else {
+			$this->getPage()->getAdapter()->registerControlToRender($this,$writer);
+		}
+	}
+
+	/**
+	 * Loops through all {@link TActivePager} on the page and registers the ones which are set to paginate
+	 * the repeater for rendering. This is to ensure that the connected pagers are also rendered if the
+	 * data source changed.
+	 */
+	private function renderPager() {
+		$pager=$this->getPage()->findControlsByType('TActivePager', false);
+		foreach($pager as $item) {
+			if($item->ControlToPaginate==$this->ID) {
+				$writer=$this->getResponse()->createHtmlWriter();
+				$this->getPage()->getAdapter()->registerControlToRender($item,$writer);
+			}
+		}
+	}
+
+	/**
+	 * Renders the repeater by writing a span tag with the container id obtained from {@link getSurroundingTagID()}
+	 * which will be called by the replacement method of the client script to update it's content.
+	 * @param THtmlWriter writer for the rendering purpose
+	 */
+	private function renderRepeater($writer) {
+		$writer->addAttribute('id',$this->getSurroundingTagID());
+		$writer->renderBeginTag('span');
+		parent::render($writer);
+		$writer->renderEndTag();
+	}
+
+}
+
+?>
\ No newline at end of file