Added drag and drop components

1 files changed, 152 insertions, 0 deletions

diff --git a/framework/Web/UI/ActiveControls/TDraggable.php b/framework/Web/UI/ActiveControls/TDraggable.php
new file mode 100755
index 00000000..e4e4c4c4
--- /dev/null
+++ b/framework/Web/UI/ActiveControls/TDraggable.php
@@ -0,0 +1,152 @@
+<?php
+/**
+ * TDraggable class file
+ * 
+ * @author Christophe BOULAIN (Christophe.Boulain@gmail.com)
+ * @copyright Copyright &copy; 2008, PradoSoft
+ * @license http://www.pradosoft.com/license
+ * @version $Id$
+ */
+
+/**
+ * TDraggable is a control which can be dragged
+ * 
+ * This control will make "draggable" control.  
+ * 
+ * @author Christophe BOULAIN (Christophe.Boulain@gmail.com)
+ * @copyright Copyright &copy; 2008, PradoSoft
+ * @license http://www.pradosoft.com/license
+ * @version $Id$
+ */
+class TDraggable extends TPanel 
+{
+	/**
+	 * Set the handle id or css class
+	 * @param string
+	 */
+	public function setHandle ($value)
+	{
+		$this->setViewState('DragHandle', TPropertyValue::ensureString($value), null);
+	}
+	
+	/**
+	 * Get the handle id or css class
+	 * @return string
+	 */
+	public function getHandle ()
+	{
+		return $this->getViewState('DragHandle', null);
+	}
+	
+	/**
+	 * Determine if draggable element should revert to it orginal position
+	 * upon release in an non-droppable container.
+	 * @return boolean true to revert
+	 */
+	public function getRevert()
+	{
+		return $this->getViewState('Revert', true);
+	}
+	
+	/**
+	 * Sets whether the draggable element should revert to it orginal position
+	 * upon release in an non-droppable container.
+	 * @param boolean true to revert
+	 */
+	public function setRevert($value)
+	{
+		$this->setViewState('Revert', TPropertyValue::ensureBoolean($value), true);
+	}
+	
+	/**
+	 * Determine if the element should be cloned when dragged
+	 * If true, Clones the element and drags the clone, leaving the original in place until the clone is dropped.
+	 * Defaults to false
+	 * @return boolean true to clone the element
+	 */
+	public function getGhosting ()
+	{
+		return $this->getViewState('Ghosting', false);
+	}
+	
+	/**
+	 * Sets wether the element should be cloned when dragged
+	 * If true, Clones the element and drags the clone, leaving the original in place until the clone is dropped.
+	 * Defaults to false
+	 * @return boolean true to clone the element
+	 */
+	public function setGhosting ($value)
+	{
+		$this->setViewState('Ghosting', TPropertyValue::ensureBoolean($value), false);
+	}
+	
+	/**
+	 * Determine if the element should be constrainted in one direction or not
+	 * @return CDraggableConstraint
+	 */
+	public function getConstraint()
+	{
+		return $this->getViewState('Constraint', TDraggableConstraint::None);
+	}
+	
+	/**
+	 * Set wether the element should be constrainted in one direction
+	 * @param CDraggableConstraint
+	 */
+	public function setConstraint($value)
+	{
+		$this->setViewState('Constraint', TPropertyValue::ensureEnum($value, 'TDraggableConstraint'), TDraggableConstraint::None);
+	}
+	
+
+	/**
+	 * 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());
+		$cs=$this->getPage()->getClientScript();
+		$cs->registerPradoScript('dragdrop');
+		$options=TJavascript::encode($this->getPostBackOptions());
+		$class=$this->getClientClassName();
+		$code="new {$class}('{$this->getClientId()}', {$options}) ";
+		$cs->registerEndScript(sprintf('%08X', crc32($code)), $code);
+	}
+		
+	/**
+	 * Gets the name of the javascript class responsible for performing postback for this control.
+	 * This method overrides the parent implementation.
+	 * @return string the javascript class name
+	 */
+	protected function getClientClassName ()
+	{
+		return 'Draggable';
+	}
+	
+	/**
+	 * Gets the post back options for this textbox.
+	 * @return array
+	 */
+	protected function getPostBackOptions()
+	{
+		$options['ID'] = $this->getClientID();
+
+		if (($handle=$this->getHandle())!== null) $options['handle']=$handle;
+		$options['revert']=$this->getRevert();
+		if (($constraint=$this->getConstraint())!==TDraggableConstraint::None) $options['constraint']=strtolower($constraint);
+		$options['ghosting']=$this->getGhosting();
+
+		return $options;
+	}
+	
+}
+
+class TDraggableConstraint extends TEnumerable
+{
+	const None='None';
+	const Horizontal='Horizontal';
+	const Vertical='Vertical';
+}
+?>
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