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-rw-r--r--framework/Web/UI/WebControls/TRepeater.php2048
1 files changed, 1024 insertions, 1024 deletions
diff --git a/framework/Web/UI/WebControls/TRepeater.php b/framework/Web/UI/WebControls/TRepeater.php
index 6a59cbab..944b3a17 100644
--- a/framework/Web/UI/WebControls/TRepeater.php
+++ b/framework/Web/UI/WebControls/TRepeater.php
@@ -1,1025 +1,1025 @@
-<?php
-/**
- * TRepeater class file
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.pradosoft.com/
+<?php
+/**
+ * TRepeater class file
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
* @copyright Copyright &copy; 2005-2012 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Id$
- * @package System.Web.UI.WebControls
- */
-
-/**
- * Using TDataBoundControl and TDataFieldAccessor cass
- */
-Prado::using('System.Web.UI.WebControls.TDataBoundControl');
-Prado::using('System.Util.TDataFieldAccessor');
-
-/**
- * TRepeater class.
- *
- * TRepeater displays its content repeatedly based on the data fetched from
- * {@link setDataSource DataSource}.
- * The repeated contents in TRepeater are called items, which are controls and
- * can be accessed through {@link getItems Items}. When {@link dataBind()} is invoked,
- * TRepeater creates an item for each row of data and binds the data row to the item.
- * Optionally, a repeater can have a header, a footer and/or separators between items.
- *
- * The layout of the repeated contents are specified by inline templates.
- * Repeater items, header, footer, etc. are being instantiated with the corresponding
- * templates when data is being bound to the repeater.
- *
- * Since v3.1.0, the layout can also be specified by renderers. A renderer is a control class
- * that can be instantiated as repeater items, header, etc. A renderer can thus be viewed
- * as an external template (in fact, it can also be non-templated controls).
- *
- * A renderer can be any control class.
- * - If the class implements {@link IDataRenderer}, the <b>Data</b>
- * property will be set as the data row during databinding. Many PRADO controls
- * implement this interface, such as {@link TLabel}, {@link TTextBox}, etc.
- * - If the class implements {@link IItemDataRenderer}, the <b>ItemIndex</b> property will be set
- * as the zero-based index of the item in the repeater item collection, and
- * the <b>ItemType</b> property as the item's type (such as TListItemType::Item).
- * {@link TRepeaterItemRenderer} may be used as the convenient base class which
- * already implements {@link IDataItemRenderer}.
- *
- * The following properties are used to specify different types of template and renderer
- * for a repeater:
- * - {@link setItemTemplate ItemTemplate}, {@link setItemRenderer ItemRenderer}:
- * for each repeated row of data
- * - {@link setAlternatingItemTemplate AlternatingItemTemplate}, {@link setAlternatingItemRenderer AlternatingItemRenderer}:
- * for each alternating row of data. If not set, {@link setItemTemplate ItemTemplate} or {@link setItemRenderer ItemRenderer}
- * will be used instead.
- * - {@link setHeaderTemplate HeaderTemplate}, {@link setHeaderRenderer HeaderRenderer}:
- * for the repeater header.
- * - {@link setFooterTemplate FooterTemplate}, {@link setFooterRenderer FooterRenderer}:
- * for the repeater footer.
- * - {@link setSeparatorTemplate SeparatorTemplate}, {@link setSeparatorRenderer SeparatorRenderer}:
- * for content to be displayed between items.
- * - {@link setEmptyTemplate EmptyTemplate}, {@link setEmptyRenderer EmptyRenderer}:
- * used when data bound to the repeater is empty.
- *
- * If a content type is defined with both a template and a renderer, the latter takes precedence.
- *
- * When {@link dataBind()} is being called, TRepeater undergoes the following lifecycles for each row of data:
- * - create item based on templates or renderers
- * - set the row of data to the item
- * - raise {@link onItemCreated OnItemCreated}:
- * - add the item as a child control
- * - call dataBind() of the item
- * - raise {@link onItemDataBound OnItemDataBound}:
- *
- * TRepeater raises an {@link onItemCommand OnItemCommand} whenever a button control
- * within some repeater item raises a <b>OnCommand</b> event. Therefore,
- * you can handle all sorts of <b>OnCommand</b> event in a central place by
- * writing an event handler for {@link onItemCommand OnItemCommand}.
- *
- * When a page containing a repeater is post back, the repeater will restore automatically
- * all its contents, including items, header, footer and separators.
- * However, the data row associated with each item will not be recovered and become null.
- * To access the data, use one of the following ways:
- * - Use {@link getDataKeys DataKeys} to obtain the data key associated with
- * the specified repeater item and use the key to fetch the corresponding data
- * from some persistent storage such as DB.
- * - Save the whole dataset in viewstate, which will restore the dataset automatically upon postback.
- * Be aware though, if the size of your dataset is big, your page size will become big. Some
- * complex data may also have serializing problem if saved in viewstate.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TRepeater extends TDataBoundControl implements INamingContainer
-{
- /**
- * Repeater item types
- * @deprecated deprecated since version 3.0.4. Use TListItemType constants instead.
- */
- const IT_HEADER='Header';
- const IT_FOOTER='Footer';
- const IT_ITEM='Item';
- const IT_SEPARATOR='Separator';
- const IT_ALTERNATINGITEM='AlternatingItem';
-
- /**
- * @var ITemplate template for repeater items
- */
- private $_itemTemplate=null;
- /**
- * @var ITemplate template for each alternating item
- */
- private $_alternatingItemTemplate=null;
- /**
- * @var ITemplate template for header
- */
- private $_headerTemplate=null;
- /**
- * @var ITemplate template for footer
- */
- private $_footerTemplate=null;
- /**
- * @var ITemplate template used for repeater when no data is bound
- */
- private $_emptyTemplate=null;
- /**
- * @var ITemplate template for separator
- */
- private $_separatorTemplate=null;
- /**
- * @var TRepeaterItemCollection list of repeater items
- */
- private $_items=null;
- /**
- * @var TControl header item
- */
- private $_header=null;
- /**
- * @var TControl footer item
- */
- private $_footer=null;
-
-
- /**
- * @return string the class name for repeater items. Defaults to empty, meaning not set.
- * @since 3.1.0
- */
- public function getItemRenderer()
- {
- return $this->getViewState('ItemRenderer','');
- }
-
- /**
- * Sets the item renderer class.
- *
- * If not empty, the class will be used to instantiate as repeater items.
- * This property takes precedence over {@link getItemTemplate ItemTemplate}.
- *
- * @param string the renderer class name in namespace format.
- * @see setItemTemplate
- * @since 3.1.0
- */
- public function setItemRenderer($value)
- {
- $this->setViewState('ItemRenderer',$value,'');
- }
-
- /**
- * @return string the class name for alternative repeater items. Defaults to empty, meaning not set.
- * @since 3.1.0
- */
- public function getAlternatingItemRenderer()
- {
- return $this->getViewState('AlternatingItemRenderer','');
- }
-
- /**
- * Sets the alternative item renderer class.
- *
- * If not empty, the class will be used to instantiate as alternative repeater items.
- * This property takes precedence over {@link getAlternatingItemTemplate AlternatingItemTemplate}.
- *
- * @param string the renderer class name in namespace format.
- * @see setAlternatingItemTemplate
- * @since 3.1.0
- */
- public function setAlternatingItemRenderer($value)
- {
- $this->setViewState('AlternatingItemRenderer',$value,'');
- }
-
- /**
- * @return string the class name for repeater item separators. Defaults to empty, meaning not set.
- * @since 3.1.0
- */
- public function getSeparatorRenderer()
- {
- return $this->getViewState('SeparatorRenderer','');
- }
-
- /**
- * Sets the repeater item separator renderer class.
- *
- * If not empty, the class will be used to instantiate as repeater item separators.
- * This property takes precedence over {@link getSeparatorTemplate SeparatorTemplate}.
- *
- * @param string the renderer class name in namespace format.
- * @see setSeparatorTemplate
- * @since 3.1.0
- */
- public function setSeparatorRenderer($value)
- {
- $this->setViewState('SeparatorRenderer',$value,'');
- }
-
- /**
- * @return string the class name for repeater header item. Defaults to empty, meaning not set.
- * @since 3.1.0
- */
- public function getHeaderRenderer()
- {
- return $this->getViewState('HeaderRenderer','');
- }
-
- /**
- * Sets the repeater header renderer class.
- *
- * If not empty, the class will be used to instantiate as repeater header item.
- * This property takes precedence over {@link getHeaderTemplate HeaderTemplate}.
- *
- * @param string the renderer class name in namespace format.
- * @see setHeaderTemplate
- * @since 3.1.0
- */
- public function setHeaderRenderer($value)
- {
- $this->setViewState('HeaderRenderer',$value,'');
- }
-
- /**
- * @return string the class name for repeater footer item. Defaults to empty, meaning not set.
- * @since 3.1.0
- */
- public function getFooterRenderer()
- {
- return $this->getViewState('FooterRenderer','');
- }
-
- /**
- * Sets the repeater footer renderer class.
- *
- * If not empty, the class will be used to instantiate as repeater footer item.
- * This property takes precedence over {@link getFooterTemplate FooterTemplate}.
- *
- * @param string the renderer class name in namespace format.
- * @see setFooterTemplate
- * @since 3.1.0
- */
- public function setFooterRenderer($value)
- {
- $this->setViewState('FooterRenderer',$value,'');
- }
-
- /**
- * @return string the class name for empty repeater item. Defaults to empty, meaning not set.
- * @since 3.1.0
- */
- public function getEmptyRenderer()
- {
- return $this->getViewState('EmptyRenderer','');
- }
-
- /**
- * Sets the repeater empty renderer class.
- *
- * The empty renderer is created as the child of the repeater
- * if data bound to the repeater is empty.
- * This property takes precedence over {@link getEmptyTemplate EmptyTemplate}.
- *
- * @param string the renderer class name in namespace format.
- * @see setEmptyTemplate
- * @since 3.1.0
- */
- public function setEmptyRenderer($value)
- {
- $this->setViewState('EmptyRenderer',$value,'');
- }
-
- /**
- * @return ITemplate the template for repeater items
- */
- public function getItemTemplate()
- {
- return $this->_itemTemplate;
- }
-
- /**
- * @param ITemplate the template for repeater items
- * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
- */
- public function setItemTemplate($value)
- {
- if($value instanceof ITemplate || $value===null)
- $this->_itemTemplate=$value;
- else
- throw new TInvalidDataTypeException('repeater_template_required','ItemTemplate');
- }
-
- /**
- * @return ITemplate the alternative template string for the item
- */
- public function getAlternatingItemTemplate()
- {
- return $this->_alternatingItemTemplate;
- }
-
- /**
- * @param ITemplate the alternative item template
- * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
- */
- public function setAlternatingItemTemplate($value)
- {
- if($value instanceof ITemplate || $value===null)
- $this->_alternatingItemTemplate=$value;
- else
- throw new TInvalidDataTypeException('repeater_template_required','AlternatingItemTemplate');
- }
-
- /**
- * @return ITemplate the header template
- */
- public function getHeaderTemplate()
- {
- return $this->_headerTemplate;
- }
-
- /**
- * @param ITemplate the header template
- * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
- */
- public function setHeaderTemplate($value)
- {
- if($value instanceof ITemplate || $value===null)
- $this->_headerTemplate=$value;
- else
- throw new TInvalidDataTypeException('repeater_template_required','HeaderTemplate');
- }
-
- /**
- * @return ITemplate the footer template
- */
- public function getFooterTemplate()
- {
- return $this->_footerTemplate;
- }
-
- /**
- * @param ITemplate the footer template
- * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
- */
- public function setFooterTemplate($value)
- {
- if($value instanceof ITemplate || $value===null)
- $this->_footerTemplate=$value;
- else
- throw new TInvalidDataTypeException('repeater_template_required','FooterTemplate');
- }
-
- /**
- * @return ITemplate the template applied when no data is bound to the repeater
- */
- public function getEmptyTemplate()
- {
- return $this->_emptyTemplate;
- }
-
- /**
- * @param ITemplate the template applied when no data is bound to the repeater
- * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
- */
- public function setEmptyTemplate($value)
- {
- if($value instanceof ITemplate || $value===null)
- $this->_emptyTemplate=$value;
- else
- throw new TInvalidDataTypeException('repeater_template_required','EmptyTemplate');
- }
-
- /**
- * @return ITemplate the separator template
- */
- public function getSeparatorTemplate()
- {
- return $this->_separatorTemplate;
- }
-
- /**
- * @param ITemplate the separator template
- * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
- */
- public function setSeparatorTemplate($value)
- {
- if($value instanceof ITemplate || $value===null)
- $this->_separatorTemplate=$value;
- else
- throw new TInvalidDataTypeException('repeater_template_required','SeparatorTemplate');
- }
-
- /**
- * @return TControl the header item
- */
- public function getHeader()
- {
- return $this->_header;
- }
-
- /**
- * @return TControl the footer item
- */
- public function getFooter()
- {
- return $this->_footer;
- }
-
- /**
- * @return TRepeaterItemCollection list of repeater item controls
- */
- public function getItems()
- {
- if(!$this->_items)
- $this->_items=new TRepeaterItemCollection;
- return $this->_items;
- }
-
- /**
- * @return string the field of the data source that provides the keys of the list items.
- */
- public function getDataKeyField()
- {
- return $this->getViewState('DataKeyField','');
- }
-
- /**
- * @param string the field of the data source that provides the keys of the list items.
- */
- public function setDataKeyField($value)
- {
- $this->setViewState('DataKeyField',$value,'');
- }
-
- /**
- * @return TList the keys used in the data listing control.
- */
- public function getDataKeys()
- {
- if(($dataKeys=$this->getViewState('DataKeys',null))===null)
- {
- $dataKeys=new TList;
- $this->setViewState('DataKeys',$dataKeys,null);
- }
- return $dataKeys;
- }
-
- /**
- * Creates a repeater item.
- * This method invokes {@link createItem} to create a new repeater item.
- * @param integer zero-based item index.
- * @param TListItemType item type
- * @return TControl the created item, null if item is not created
- */
- private function createItemInternal($itemIndex,$itemType)
- {
- if(($item=$this->createItem($itemIndex,$itemType))!==null)
- {
- $param=new TRepeaterItemEventParameter($item);
- $this->onItemCreated($param);
- $this->getControls()->add($item);
- return $item;
- }
- else
- return null;
- }
-
- /**
- * Creates a repeater item and performs databinding.
- * This method invokes {@link createItem} to create a new repeater item.
- * @param integer zero-based item index.
- * @param TListItemType item type
- * @param mixed data to be associated with the item
- * @return TControl the created item, null if item is not created
- */
- private function createItemWithDataInternal($itemIndex,$itemType,$dataItem)
- {
- if(($item=$this->createItem($itemIndex,$itemType))!==null)
- {
- $param=new TRepeaterItemEventParameter($item);
- if($item instanceof IDataRenderer)
- $item->setData($dataItem);
- $this->onItemCreated($param);
- $this->getControls()->add($item);
- $item->dataBind();
- $this->onItemDataBound($param);
- return $item;
- }
- else
- return null;
- }
-
- /**
- * Creates a repeater item instance based on the item type and index.
- * @param integer zero-based item index
- * @param TListItemType item type
- * @return TControl created repeater item
- */
- protected function createItem($itemIndex,$itemType)
- {
- $template=null;
- $classPath=null;
- switch($itemType)
- {
- case TListItemType::Item :
- $classPath=$this->getItemRenderer();
- $template=$this->_itemTemplate;
- break;
- case TListItemType::AlternatingItem :
- if(($classPath=$this->getAlternatingItemRenderer())==='' && ($template=$this->_alternatingItemTemplate)===null)
- {
- $classPath=$this->getItemRenderer();
- $template=$this->_itemTemplate;
- }
- break;
- case TListItemType::Header :
- $classPath=$this->getHeaderRenderer();
- $template=$this->_headerTemplate;
- break;
- case TListItemType::Footer :
- $classPath=$this->getFooterRenderer();
- $template=$this->_footerTemplate;
- break;
- case TListItemType::Separator :
- $classPath=$this->getSeparatorRenderer();
- $template=$this->_separatorTemplate;
- break;
- default:
- throw new TInvalidDataValueException('repeater_itemtype_unknown',$itemType);
- }
- if($classPath!=='')
- {
- $item=Prado::createComponent($classPath);
- if($item instanceof IItemDataRenderer)
- {
- $item->setItemIndex($itemIndex);
- $item->setItemType($itemType);
- }
- }
- else if($template!==null)
- {
- $item=new TRepeaterItem;
- $item->setItemIndex($itemIndex);
- $item->setItemType($itemType);
- $template->instantiateIn($item);
- }
- else
- $item=null;
-
- return $item;
- }
-
- /**
- * Creates empty repeater content.
- */
- protected function createEmptyContent()
- {
- if(($classPath=$this->getEmptyRenderer())!=='')
- $this->getControls()->add(Prado::createComponent($classPath));
- else if($this->_emptyTemplate!==null)
- $this->_emptyTemplate->instantiateIn($this);
- }
-
- /**
- * Renders the repeater.
- * This method overrides the parent implementation by rendering the body
- * content as the whole presentation of the repeater. Outer tag is not rendered.
- * @param THtmlWriter writer
- */
- public function render($writer)
- {
- if($this->_items && $this->_items->getCount() || $this->_emptyTemplate!==null || $this->getEmptyRenderer()!=='')
- $this->renderContents($writer);
- }
-
- /**
- * Saves item count in viewstate.
- * This method is invoked right before control state is to be saved.
- */
- public function saveState()
- {
- parent::saveState();
- if($this->_items)
- $this->setViewState('ItemCount',$this->_items->getCount(),0);
- else
- $this->clearViewState('ItemCount');
- }
-
- /**
- * Loads item count information from viewstate.
- * This method is invoked right after control state is loaded.
- */
- public function loadState()
- {
- parent::loadState();
- if(!$this->getIsDataBound())
- $this->restoreItemsFromViewState();
- $this->clearViewState('ItemCount');
- }
-
- /**
- * Clears up all items in the repeater.
- */
- public function reset()
- {
- $this->getControls()->clear();
- $this->getItems()->clear();
- $this->_header=null;
- $this->_footer=null;
- }
-
- /**
- * Creates repeater items based on viewstate information.
- */
- protected function restoreItemsFromViewState()
- {
- $this->reset();
- if(($itemCount=$this->getViewState('ItemCount',0))>0)
- {
- $items=$this->getItems();
- $hasSeparator=$this->_separatorTemplate!==null || $this->getSeparatorRenderer()!=='';
- $this->_header=$this->createItemInternal(-1,TListItemType::Header);
- for($i=0;$i<$itemCount;++$i)
- {
- if($hasSeparator && $i>0)
- $this->createItemInternal($i-1,TListItemType::Separator);
- $itemType=$i%2==0?TListItemType::Item : TListItemType::AlternatingItem;
- $items->add($this->createItemInternal($i,$itemType,false,null));
- }
- $this->_footer=$this->createItemInternal(-1,TListItemType::Footer);
- }
- else
- $this->createEmptyContent();
- $this->clearChildState();
- }
-
- /**
- * Performs databinding to populate repeater items from data source.
- * This method is invoked by dataBind().
- * You may override this function to provide your own way of data population.
- * @param Traversable the data
- */
- protected function performDataBinding($data)
- {
- $this->reset();
-
- $keys=$this->getDataKeys();
- $keys->clear();
- $keyField=$this->getDataKeyField();
-
- $items=$this->getItems();
- $itemIndex=0;
- $hasSeparator=$this->_separatorTemplate!==null || $this->getSeparatorRenderer()!=='';
- foreach($data as $key=>$dataItem)
- {
- if($keyField!=='')
- $keys->add($this->getDataFieldValue($dataItem,$keyField));
- else
- $keys->add($key);
- if($itemIndex===0)
- $this->_header=$this->createItemWithDataInternal(-1,TListItemType::Header,null);
- if($hasSeparator && $itemIndex>0)
- $this->createItemWithDataInternal($itemIndex-1,TListItemType::Separator,null);
- $itemType=$itemIndex%2==0?TListItemType::Item : TListItemType::AlternatingItem;
- $items->add($this->createItemWithDataInternal($itemIndex,$itemType,$dataItem));
- $itemIndex++;
- }
- if($itemIndex>0)
- $this->_footer=$this->createItemWithDataInternal(-1,TListItemType::Footer,null);
- else
- {
- $this->createEmptyContent();
- $this->dataBindChildren();
- }
- $this->setViewState('ItemCount',$itemIndex,0);
- }
-
- /**
- * This method overrides parent's implementation to handle
- * {@link onItemCommand OnItemCommand} event which is bubbled from
- * repeater items and their child controls.
- * This method should only be used by control developers.
- * @param TControl the sender of the event
- * @param TEventParameter event parameter
- * @return boolean whether the event bubbling should stop here.
- */
- public function bubbleEvent($sender,$param)
- {
- if($param instanceof TRepeaterCommandEventParameter)
- {
- $this->onItemCommand($param);
- return true;
- }
- else
- return false;
- }
-
- /**
- * Raises <b>OnItemCreated</b> event.
- * This method is invoked after a repeater item is created and instantiated with
- * template, but before added to the page hierarchy.
- * The repeater item control responsible for the event
- * can be determined from the event parameter.
- * If you override this method, be sure to call parent's implementation
- * so that event handlers have chance to respond to the event.
- * @param TRepeaterItemEventParameter event parameter
- */
- public function onItemCreated($param)
- {
- $this->raiseEvent('OnItemCreated',$this,$param);
- }
-
- /**
- * Raises <b>OnItemDataBound</b> event.
- * This method is invoked right after an item is data bound.
- * The repeater item control responsible for the event
- * can be determined from the event parameter.
- * If you override this method, be sure to call parent's implementation
- * so that event handlers have chance to respond to the event.
- * @param TRepeaterItemEventParameter event parameter
- */
- public function onItemDataBound($param)
- {
- $this->raiseEvent('OnItemDataBound',$this,$param);
- }
-
- /**
- * Raises <b>OnItemCommand</b> event.
- * This method is invoked after a button control in
- * a template raises <b>OnCommand</b> event.
- * The repeater control responsible for the event
- * can be determined from the event parameter.
- * The event parameter also contains the information about
- * the initial sender of the <b>OnCommand</b> event, command name
- * and command parameter.
- * You may override this method to provide customized event handling.
- * Be sure to call parent's implementation so that
- * event handlers have chance to respond to the event.
- * @param TRepeaterCommandEventParameter event parameter
- */
- public function onItemCommand($param)
- {
- $this->raiseEvent('OnItemCommand',$this,$param);
- }
-
- /**
- * Returns the value of the data at the specified field.
- * If data is an array, TMap or TList, the value will be returned at the index
- * of the specified field. If the data is a component with a property named
- * as the field name, the property value will be returned.
- * Otherwise, an exception will be raised.
- * @param mixed data item
- * @param mixed field name
- * @return mixed data value at the specified field
- * @throws TInvalidDataValueException if the data is invalid
- */
- protected function getDataFieldValue($data,$field)
- {
- return TDataFieldAccessor::getDataFieldValue($data,$field);
- }
-}
-
-/**
- * TRepeaterItemEventParameter class
- *
- * TRepeaterItemEventParameter encapsulates the parameter data for
- * {@link TRepeater::onItemCreated ItemCreated} event of {@link TRepeater} controls.
- * The {@link getItem Item} property indicates the repeater item related with the event.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TRepeaterItemEventParameter extends TEventParameter
-{
- /**
- * The repeater item control responsible for the event.
- * @var TControl
- */
- private $_item=null;
-
- /**
- * Constructor.
- * @param TControl repeater item related with the corresponding event
- */
- public function __construct($item)
- {
- $this->_item=$item;
- }
-
- /**
- * @return TControl repeater item related with the corresponding event
- */
- public function getItem()
- {
- return $this->_item;
- }
-}
-
-/**
- * TRepeaterCommandEventParameter class
- *
- * TRepeaterCommandEventParameter encapsulates the parameter data for
- * {@link TRepeater::onItemCommand ItemCommand} event of {@link TRepeater} controls.
- *
- * The {@link getItem Item} property indicates the repeater item related with the event.
- * The {@link getCommandSource CommandSource} refers to the control that originally
- * raises the Command event.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TRepeaterCommandEventParameter extends TCommandEventParameter
-{
- /**
- * @var TControl the repeater item control responsible for the event.
- */
- private $_item=null;
- /**
- * @var TControl the control originally raises the <b>OnCommand</b> event.
- */
- private $_source=null;
-
- /**
- * Constructor.
- * @param TControl repeater item responsible for the event
- * @param TControl original event sender
- * @param TCommandEventParameter original event parameter
- */
- public function __construct($item,$source,TCommandEventParameter $param)
- {
- $this->_item=$item;
- $this->_source=$source;
- parent::__construct($param->getCommandName(),$param->getCommandParameter());
- }
-
- /**
- * @return TControl the repeater item control responsible for the event.
- */
- public function getItem()
- {
- return $this->_item;
- }
-
- /**
- * @return TControl the control originally raises the <b>OnCommand</b> event.
- */
- public function getCommandSource()
- {
- return $this->_source;
- }
-}
-
-/**
- * TRepeaterItem class
- *
- * A TRepeaterItem control represents an item in the {@link TRepeater} control,
- * such as heading section, footer section, or a data item.
- * The index and data value of the item can be accessed via {@link getItemIndex ItemIndex}>
- * and {@link getDataItem DataItem} properties, respectively. The type of the item
- * is given by {@link getItemType ItemType} property.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TRepeaterItem extends TControl implements INamingContainer, IItemDataRenderer
-{
- /**
- * index of the data item in the Items collection of repeater
- */
- private $_itemIndex;
- /**
- * type of the TRepeaterItem
- * @var TListItemType
- */
- private $_itemType;
- /**
- * data associated with this item
- * @var mixed
- */
- private $_data;
-
- /**
- * @return TListItemType item type
- */
- public function getItemType()
- {
- return $this->_itemType;
- }
-
- /**
- * @param TListItemType item type.
- */
- public function setItemType($value)
- {
- $this->_itemType=TPropertyValue::ensureEnum($value,'TListItemType');
- }
-
- /**
- * Returns a value indicating the zero-based index of the item in the corresponding data control's item collection.
- * If the item is not in the collection (e.g. it is a header item), it returns -1.
- * @return integer zero-based index of the item.
- */
- public function getItemIndex()
- {
- return $this->_itemIndex;
- }
-
- /**
- * Sets the zero-based index for the item.
- * If the item is not in the item collection (e.g. it is a header item), -1 should be used.
- * @param integer zero-based index of the item.
- */
- public function setItemIndex($value)
- {
- $this->_itemIndex=TPropertyValue::ensureInteger($value);
- }
-
- /**
- * @return mixed data associated with the item
- * @since 3.1.0
- */
- public function getData()
- {
- return $this->_data;
- }
-
- /**
- * @param mixed data to be associated with the item
- * @since 3.1.0
- */
- public function setData($value)
- {
- $this->_data=$value;
- }
-
- /**
- * This property is deprecated since v3.1.0.
- * @return mixed data associated with the item
- * @deprecated deprecated since v3.1.0. Use {@link getData} instead.
- */
- public function getDataItem()
- {
- return $this->getData();
- }
-
- /**
- * This property is deprecated since v3.1.0.
- * @param mixed data to be associated with the item
- * @deprecated deprecated since version 3.1.0. Use {@link setData} instead.
- */
- public function setDataItem($value)
- {
- return $this->setData($value);
- }
-
- /**
- * This method overrides parent's implementation by wrapping event parameter
- * for <b>OnCommand</b> event with item information.
- * @param TControl the sender of the event
- * @param TEventParameter event parameter
- * @return boolean whether the event bubbling should stop here.
- */
- public function bubbleEvent($sender,$param)
- {
- if($param instanceof TCommandEventParameter)
- {
- $this->raiseBubbleEvent($this,new TRepeaterCommandEventParameter($this,$sender,$param));
- return true;
- }
- else
- return false;
- }
-}
-
-
-/**
- * TRepeaterItemCollection class.
- *
- * TRepeaterItemCollection represents a collection of repeater items.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Id$
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TRepeaterItemCollection extends TList
-{
- /**
- * Inserts an item at the specified position.
- * This overrides the parent implementation by inserting only objects that are descendant of {@link TControl}.
- * @param integer the speicified position.
- * @param TControl new item
- * @throws TInvalidDataTypeException if the item to be inserted is not a control.
- */
- public function insertAt($index,$item)
- {
- if($item instanceof TControl)
- parent::insertAt($index,$item);
- else
- throw new TInvalidDataTypeException('repeateritemcollection_item_invalid');
- }
-}
-
+ * @license http://www.pradosoft.com/license/
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ */
+
+/**
+ * Using TDataBoundControl and TDataFieldAccessor cass
+ */
+Prado::using('System.Web.UI.WebControls.TDataBoundControl');
+Prado::using('System.Util.TDataFieldAccessor');
+
+/**
+ * TRepeater class.
+ *
+ * TRepeater displays its content repeatedly based on the data fetched from
+ * {@link setDataSource DataSource}.
+ * The repeated contents in TRepeater are called items, which are controls and
+ * can be accessed through {@link getItems Items}. When {@link dataBind()} is invoked,
+ * TRepeater creates an item for each row of data and binds the data row to the item.
+ * Optionally, a repeater can have a header, a footer and/or separators between items.
+ *
+ * The layout of the repeated contents are specified by inline templates.
+ * Repeater items, header, footer, etc. are being instantiated with the corresponding
+ * templates when data is being bound to the repeater.
+ *
+ * Since v3.1.0, the layout can also be specified by renderers. A renderer is a control class
+ * that can be instantiated as repeater items, header, etc. A renderer can thus be viewed
+ * as an external template (in fact, it can also be non-templated controls).
+ *
+ * A renderer can be any control class.
+ * - If the class implements {@link IDataRenderer}, the <b>Data</b>
+ * property will be set as the data row during databinding. Many PRADO controls
+ * implement this interface, such as {@link TLabel}, {@link TTextBox}, etc.
+ * - If the class implements {@link IItemDataRenderer}, the <b>ItemIndex</b> property will be set
+ * as the zero-based index of the item in the repeater item collection, and
+ * the <b>ItemType</b> property as the item's type (such as TListItemType::Item).
+ * {@link TRepeaterItemRenderer} may be used as the convenient base class which
+ * already implements {@link IDataItemRenderer}.
+ *
+ * The following properties are used to specify different types of template and renderer
+ * for a repeater:
+ * - {@link setItemTemplate ItemTemplate}, {@link setItemRenderer ItemRenderer}:
+ * for each repeated row of data
+ * - {@link setAlternatingItemTemplate AlternatingItemTemplate}, {@link setAlternatingItemRenderer AlternatingItemRenderer}:
+ * for each alternating row of data. If not set, {@link setItemTemplate ItemTemplate} or {@link setItemRenderer ItemRenderer}
+ * will be used instead.
+ * - {@link setHeaderTemplate HeaderTemplate}, {@link setHeaderRenderer HeaderRenderer}:
+ * for the repeater header.
+ * - {@link setFooterTemplate FooterTemplate}, {@link setFooterRenderer FooterRenderer}:
+ * for the repeater footer.
+ * - {@link setSeparatorTemplate SeparatorTemplate}, {@link setSeparatorRenderer SeparatorRenderer}:
+ * for content to be displayed between items.
+ * - {@link setEmptyTemplate EmptyTemplate}, {@link setEmptyRenderer EmptyRenderer}:
+ * used when data bound to the repeater is empty.
+ *
+ * If a content type is defined with both a template and a renderer, the latter takes precedence.
+ *
+ * When {@link dataBind()} is being called, TRepeater undergoes the following lifecycles for each row of data:
+ * - create item based on templates or renderers
+ * - set the row of data to the item
+ * - raise {@link onItemCreated OnItemCreated}:
+ * - add the item as a child control
+ * - call dataBind() of the item
+ * - raise {@link onItemDataBound OnItemDataBound}:
+ *
+ * TRepeater raises an {@link onItemCommand OnItemCommand} whenever a button control
+ * within some repeater item raises a <b>OnCommand</b> event. Therefore,
+ * you can handle all sorts of <b>OnCommand</b> event in a central place by
+ * writing an event handler for {@link onItemCommand OnItemCommand}.
+ *
+ * When a page containing a repeater is post back, the repeater will restore automatically
+ * all its contents, including items, header, footer and separators.
+ * However, the data row associated with each item will not be recovered and become null.
+ * To access the data, use one of the following ways:
+ * - Use {@link getDataKeys DataKeys} to obtain the data key associated with
+ * the specified repeater item and use the key to fetch the corresponding data
+ * from some persistent storage such as DB.
+ * - Save the whole dataset in viewstate, which will restore the dataset automatically upon postback.
+ * Be aware though, if the size of your dataset is big, your page size will become big. Some
+ * complex data may also have serializing problem if saved in viewstate.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TRepeater extends TDataBoundControl implements INamingContainer
+{
+ /**
+ * Repeater item types
+ * @deprecated deprecated since version 3.0.4. Use TListItemType constants instead.
+ */
+ const IT_HEADER='Header';
+ const IT_FOOTER='Footer';
+ const IT_ITEM='Item';
+ const IT_SEPARATOR='Separator';
+ const IT_ALTERNATINGITEM='AlternatingItem';
+
+ /**
+ * @var ITemplate template for repeater items
+ */
+ private $_itemTemplate=null;
+ /**
+ * @var ITemplate template for each alternating item
+ */
+ private $_alternatingItemTemplate=null;
+ /**
+ * @var ITemplate template for header
+ */
+ private $_headerTemplate=null;
+ /**
+ * @var ITemplate template for footer
+ */
+ private $_footerTemplate=null;
+ /**
+ * @var ITemplate template used for repeater when no data is bound
+ */
+ private $_emptyTemplate=null;
+ /**
+ * @var ITemplate template for separator
+ */
+ private $_separatorTemplate=null;
+ /**
+ * @var TRepeaterItemCollection list of repeater items
+ */
+ private $_items=null;
+ /**
+ * @var TControl header item
+ */
+ private $_header=null;
+ /**
+ * @var TControl footer item
+ */
+ private $_footer=null;
+
+
+ /**
+ * @return string the class name for repeater items. Defaults to empty, meaning not set.
+ * @since 3.1.0
+ */
+ public function getItemRenderer()
+ {
+ return $this->getViewState('ItemRenderer','');
+ }
+
+ /**
+ * Sets the item renderer class.
+ *
+ * If not empty, the class will be used to instantiate as repeater items.
+ * This property takes precedence over {@link getItemTemplate ItemTemplate}.
+ *
+ * @param string the renderer class name in namespace format.
+ * @see setItemTemplate
+ * @since 3.1.0
+ */
+ public function setItemRenderer($value)
+ {
+ $this->setViewState('ItemRenderer',$value,'');
+ }
+
+ /**
+ * @return string the class name for alternative repeater items. Defaults to empty, meaning not set.
+ * @since 3.1.0
+ */
+ public function getAlternatingItemRenderer()
+ {
+ return $this->getViewState('AlternatingItemRenderer','');
+ }
+
+ /**
+ * Sets the alternative item renderer class.
+ *
+ * If not empty, the class will be used to instantiate as alternative repeater items.
+ * This property takes precedence over {@link getAlternatingItemTemplate AlternatingItemTemplate}.
+ *
+ * @param string the renderer class name in namespace format.
+ * @see setAlternatingItemTemplate
+ * @since 3.1.0
+ */
+ public function setAlternatingItemRenderer($value)
+ {
+ $this->setViewState('AlternatingItemRenderer',$value,'');
+ }
+
+ /**
+ * @return string the class name for repeater item separators. Defaults to empty, meaning not set.
+ * @since 3.1.0
+ */
+ public function getSeparatorRenderer()
+ {
+ return $this->getViewState('SeparatorRenderer','');
+ }
+
+ /**
+ * Sets the repeater item separator renderer class.
+ *
+ * If not empty, the class will be used to instantiate as repeater item separators.
+ * This property takes precedence over {@link getSeparatorTemplate SeparatorTemplate}.
+ *
+ * @param string the renderer class name in namespace format.
+ * @see setSeparatorTemplate
+ * @since 3.1.0
+ */
+ public function setSeparatorRenderer($value)
+ {
+ $this->setViewState('SeparatorRenderer',$value,'');
+ }
+
+ /**
+ * @return string the class name for repeater header item. Defaults to empty, meaning not set.
+ * @since 3.1.0
+ */
+ public function getHeaderRenderer()
+ {
+ return $this->getViewState('HeaderRenderer','');
+ }
+
+ /**
+ * Sets the repeater header renderer class.
+ *
+ * If not empty, the class will be used to instantiate as repeater header item.
+ * This property takes precedence over {@link getHeaderTemplate HeaderTemplate}.
+ *
+ * @param string the renderer class name in namespace format.
+ * @see setHeaderTemplate
+ * @since 3.1.0
+ */
+ public function setHeaderRenderer($value)
+ {
+ $this->setViewState('HeaderRenderer',$value,'');
+ }
+
+ /**
+ * @return string the class name for repeater footer item. Defaults to empty, meaning not set.
+ * @since 3.1.0
+ */
+ public function getFooterRenderer()
+ {
+ return $this->getViewState('FooterRenderer','');
+ }
+
+ /**
+ * Sets the repeater footer renderer class.
+ *
+ * If not empty, the class will be used to instantiate as repeater footer item.
+ * This property takes precedence over {@link getFooterTemplate FooterTemplate}.
+ *
+ * @param string the renderer class name in namespace format.
+ * @see setFooterTemplate
+ * @since 3.1.0
+ */
+ public function setFooterRenderer($value)
+ {
+ $this->setViewState('FooterRenderer',$value,'');
+ }
+
+ /**
+ * @return string the class name for empty repeater item. Defaults to empty, meaning not set.
+ * @since 3.1.0
+ */
+ public function getEmptyRenderer()
+ {
+ return $this->getViewState('EmptyRenderer','');
+ }
+
+ /**
+ * Sets the repeater empty renderer class.
+ *
+ * The empty renderer is created as the child of the repeater
+ * if data bound to the repeater is empty.
+ * This property takes precedence over {@link getEmptyTemplate EmptyTemplate}.
+ *
+ * @param string the renderer class name in namespace format.
+ * @see setEmptyTemplate
+ * @since 3.1.0
+ */
+ public function setEmptyRenderer($value)
+ {
+ $this->setViewState('EmptyRenderer',$value,'');
+ }
+
+ /**
+ * @return ITemplate the template for repeater items
+ */
+ public function getItemTemplate()
+ {
+ return $this->_itemTemplate;
+ }
+
+ /**
+ * @param ITemplate the template for repeater items
+ * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
+ */
+ public function setItemTemplate($value)
+ {
+ if($value instanceof ITemplate || $value===null)
+ $this->_itemTemplate=$value;
+ else
+ throw new TInvalidDataTypeException('repeater_template_required','ItemTemplate');
+ }
+
+ /**
+ * @return ITemplate the alternative template string for the item
+ */
+ public function getAlternatingItemTemplate()
+ {
+ return $this->_alternatingItemTemplate;
+ }
+
+ /**
+ * @param ITemplate the alternative item template
+ * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
+ */
+ public function setAlternatingItemTemplate($value)
+ {
+ if($value instanceof ITemplate || $value===null)
+ $this->_alternatingItemTemplate=$value;
+ else
+ throw new TInvalidDataTypeException('repeater_template_required','AlternatingItemTemplate');
+ }
+
+ /**
+ * @return ITemplate the header template
+ */
+ public function getHeaderTemplate()
+ {
+ return $this->_headerTemplate;
+ }
+
+ /**
+ * @param ITemplate the header template
+ * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
+ */
+ public function setHeaderTemplate($value)
+ {
+ if($value instanceof ITemplate || $value===null)
+ $this->_headerTemplate=$value;
+ else
+ throw new TInvalidDataTypeException('repeater_template_required','HeaderTemplate');
+ }
+
+ /**
+ * @return ITemplate the footer template
+ */
+ public function getFooterTemplate()
+ {
+ return $this->_footerTemplate;
+ }
+
+ /**
+ * @param ITemplate the footer template
+ * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
+ */
+ public function setFooterTemplate($value)
+ {
+ if($value instanceof ITemplate || $value===null)
+ $this->_footerTemplate=$value;
+ else
+ throw new TInvalidDataTypeException('repeater_template_required','FooterTemplate');
+ }
+
+ /**
+ * @return ITemplate the template applied when no data is bound to the repeater
+ */
+ public function getEmptyTemplate()
+ {
+ return $this->_emptyTemplate;
+ }
+
+ /**
+ * @param ITemplate the template applied when no data is bound to the repeater
+ * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
+ */
+ public function setEmptyTemplate($value)
+ {
+ if($value instanceof ITemplate || $value===null)
+ $this->_emptyTemplate=$value;
+ else
+ throw new TInvalidDataTypeException('repeater_template_required','EmptyTemplate');
+ }
+
+ /**
+ * @return ITemplate the separator template
+ */
+ public function getSeparatorTemplate()
+ {
+ return $this->_separatorTemplate;
+ }
+
+ /**
+ * @param ITemplate the separator template
+ * @throws TInvalidDataTypeException if the input is not an {@link ITemplate} or not null.
+ */
+ public function setSeparatorTemplate($value)
+ {
+ if($value instanceof ITemplate || $value===null)
+ $this->_separatorTemplate=$value;
+ else
+ throw new TInvalidDataTypeException('repeater_template_required','SeparatorTemplate');
+ }
+
+ /**
+ * @return TControl the header item
+ */
+ public function getHeader()
+ {
+ return $this->_header;
+ }
+
+ /**
+ * @return TControl the footer item
+ */
+ public function getFooter()
+ {
+ return $this->_footer;
+ }
+
+ /**
+ * @return TRepeaterItemCollection list of repeater item controls
+ */
+ public function getItems()
+ {
+ if(!$this->_items)
+ $this->_items=new TRepeaterItemCollection;
+ return $this->_items;
+ }
+
+ /**
+ * @return string the field of the data source that provides the keys of the list items.
+ */
+ public function getDataKeyField()
+ {
+ return $this->getViewState('DataKeyField','');
+ }
+
+ /**
+ * @param string the field of the data source that provides the keys of the list items.
+ */
+ public function setDataKeyField($value)
+ {
+ $this->setViewState('DataKeyField',$value,'');
+ }
+
+ /**
+ * @return TList the keys used in the data listing control.
+ */
+ public function getDataKeys()
+ {
+ if(($dataKeys=$this->getViewState('DataKeys',null))===null)
+ {
+ $dataKeys=new TList;
+ $this->setViewState('DataKeys',$dataKeys,null);
+ }
+ return $dataKeys;
+ }
+
+ /**
+ * Creates a repeater item.
+ * This method invokes {@link createItem} to create a new repeater item.
+ * @param integer zero-based item index.
+ * @param TListItemType item type
+ * @return TControl the created item, null if item is not created
+ */
+ private function createItemInternal($itemIndex,$itemType)
+ {
+ if(($item=$this->createItem($itemIndex,$itemType))!==null)
+ {
+ $param=new TRepeaterItemEventParameter($item);
+ $this->onItemCreated($param);
+ $this->getControls()->add($item);
+ return $item;
+ }
+ else
+ return null;
+ }
+
+ /**
+ * Creates a repeater item and performs databinding.
+ * This method invokes {@link createItem} to create a new repeater item.
+ * @param integer zero-based item index.
+ * @param TListItemType item type
+ * @param mixed data to be associated with the item
+ * @return TControl the created item, null if item is not created
+ */
+ private function createItemWithDataInternal($itemIndex,$itemType,$dataItem)
+ {
+ if(($item=$this->createItem($itemIndex,$itemType))!==null)
+ {
+ $param=new TRepeaterItemEventParameter($item);
+ if($item instanceof IDataRenderer)
+ $item->setData($dataItem);
+ $this->onItemCreated($param);
+ $this->getControls()->add($item);
+ $item->dataBind();
+ $this->onItemDataBound($param);
+ return $item;
+ }
+ else
+ return null;
+ }
+
+ /**
+ * Creates a repeater item instance based on the item type and index.
+ * @param integer zero-based item index
+ * @param TListItemType item type
+ * @return TControl created repeater item
+ */
+ protected function createItem($itemIndex,$itemType)
+ {
+ $template=null;
+ $classPath=null;
+ switch($itemType)
+ {
+ case TListItemType::Item :
+ $classPath=$this->getItemRenderer();
+ $template=$this->_itemTemplate;
+ break;
+ case TListItemType::AlternatingItem :
+ if(($classPath=$this->getAlternatingItemRenderer())==='' && ($template=$this->_alternatingItemTemplate)===null)
+ {
+ $classPath=$this->getItemRenderer();
+ $template=$this->_itemTemplate;
+ }
+ break;
+ case TListItemType::Header :
+ $classPath=$this->getHeaderRenderer();
+ $template=$this->_headerTemplate;
+ break;
+ case TListItemType::Footer :
+ $classPath=$this->getFooterRenderer();
+ $template=$this->_footerTemplate;
+ break;
+ case TListItemType::Separator :
+ $classPath=$this->getSeparatorRenderer();
+ $template=$this->_separatorTemplate;
+ break;
+ default:
+ throw new TInvalidDataValueException('repeater_itemtype_unknown',$itemType);
+ }
+ if($classPath!=='')
+ {
+ $item=Prado::createComponent($classPath);
+ if($item instanceof IItemDataRenderer)
+ {
+ $item->setItemIndex($itemIndex);
+ $item->setItemType($itemType);
+ }
+ }
+ else if($template!==null)
+ {
+ $item=new TRepeaterItem;
+ $item->setItemIndex($itemIndex);
+ $item->setItemType($itemType);
+ $template->instantiateIn($item);
+ }
+ else
+ $item=null;
+
+ return $item;
+ }
+
+ /**
+ * Creates empty repeater content.
+ */
+ protected function createEmptyContent()
+ {
+ if(($classPath=$this->getEmptyRenderer())!=='')
+ $this->getControls()->add(Prado::createComponent($classPath));
+ else if($this->_emptyTemplate!==null)
+ $this->_emptyTemplate->instantiateIn($this);
+ }
+
+ /**
+ * Renders the repeater.
+ * This method overrides the parent implementation by rendering the body
+ * content as the whole presentation of the repeater. Outer tag is not rendered.
+ * @param THtmlWriter writer
+ */
+ public function render($writer)
+ {
+ if($this->_items && $this->_items->getCount() || $this->_emptyTemplate!==null || $this->getEmptyRenderer()!=='')
+ $this->renderContents($writer);
+ }
+
+ /**
+ * Saves item count in viewstate.
+ * This method is invoked right before control state is to be saved.
+ */
+ public function saveState()
+ {
+ parent::saveState();
+ if($this->_items)
+ $this->setViewState('ItemCount',$this->_items->getCount(),0);
+ else
+ $this->clearViewState('ItemCount');
+ }
+
+ /**
+ * Loads item count information from viewstate.
+ * This method is invoked right after control state is loaded.
+ */
+ public function loadState()
+ {
+ parent::loadState();
+ if(!$this->getIsDataBound())
+ $this->restoreItemsFromViewState();
+ $this->clearViewState('ItemCount');
+ }
+
+ /**
+ * Clears up all items in the repeater.
+ */
+ public function reset()
+ {
+ $this->getControls()->clear();
+ $this->getItems()->clear();
+ $this->_header=null;
+ $this->_footer=null;
+ }
+
+ /**
+ * Creates repeater items based on viewstate information.
+ */
+ protected function restoreItemsFromViewState()
+ {
+ $this->reset();
+ if(($itemCount=$this->getViewState('ItemCount',0))>0)
+ {
+ $items=$this->getItems();
+ $hasSeparator=$this->_separatorTemplate!==null || $this->getSeparatorRenderer()!=='';
+ $this->_header=$this->createItemInternal(-1,TListItemType::Header);
+ for($i=0;$i<$itemCount;++$i)
+ {
+ if($hasSeparator && $i>0)
+ $this->createItemInternal($i-1,TListItemType::Separator);
+ $itemType=$i%2==0?TListItemType::Item : TListItemType::AlternatingItem;
+ $items->add($this->createItemInternal($i,$itemType,false,null));
+ }
+ $this->_footer=$this->createItemInternal(-1,TListItemType::Footer);
+ }
+ else
+ $this->createEmptyContent();
+ $this->clearChildState();
+ }
+
+ /**
+ * Performs databinding to populate repeater items from data source.
+ * This method is invoked by dataBind().
+ * You may override this function to provide your own way of data population.
+ * @param Traversable the data
+ */
+ protected function performDataBinding($data)
+ {
+ $this->reset();
+
+ $keys=$this->getDataKeys();
+ $keys->clear();
+ $keyField=$this->getDataKeyField();
+
+ $items=$this->getItems();
+ $itemIndex=0;
+ $hasSeparator=$this->_separatorTemplate!==null || $this->getSeparatorRenderer()!=='';
+ foreach($data as $key=>$dataItem)
+ {
+ if($keyField!=='')
+ $keys->add($this->getDataFieldValue($dataItem,$keyField));
+ else
+ $keys->add($key);
+ if($itemIndex===0)
+ $this->_header=$this->createItemWithDataInternal(-1,TListItemType::Header,null);
+ if($hasSeparator && $itemIndex>0)
+ $this->createItemWithDataInternal($itemIndex-1,TListItemType::Separator,null);
+ $itemType=$itemIndex%2==0?TListItemType::Item : TListItemType::AlternatingItem;
+ $items->add($this->createItemWithDataInternal($itemIndex,$itemType,$dataItem));
+ $itemIndex++;
+ }
+ if($itemIndex>0)
+ $this->_footer=$this->createItemWithDataInternal(-1,TListItemType::Footer,null);
+ else
+ {
+ $this->createEmptyContent();
+ $this->dataBindChildren();
+ }
+ $this->setViewState('ItemCount',$itemIndex,0);
+ }
+
+ /**
+ * This method overrides parent's implementation to handle
+ * {@link onItemCommand OnItemCommand} event which is bubbled from
+ * repeater items and their child controls.
+ * This method should only be used by control developers.
+ * @param TControl the sender of the event
+ * @param TEventParameter event parameter
+ * @return boolean whether the event bubbling should stop here.
+ */
+ public function bubbleEvent($sender,$param)
+ {
+ if($param instanceof TRepeaterCommandEventParameter)
+ {
+ $this->onItemCommand($param);
+ return true;
+ }
+ else
+ return false;
+ }
+
+ /**
+ * Raises <b>OnItemCreated</b> event.
+ * This method is invoked after a repeater item is created and instantiated with
+ * template, but before added to the page hierarchy.
+ * The repeater item control responsible for the event
+ * can be determined from the event parameter.
+ * If you override this method, be sure to call parent's implementation
+ * so that event handlers have chance to respond to the event.
+ * @param TRepeaterItemEventParameter event parameter
+ */
+ public function onItemCreated($param)
+ {
+ $this->raiseEvent('OnItemCreated',$this,$param);
+ }
+
+ /**
+ * Raises <b>OnItemDataBound</b> event.
+ * This method is invoked right after an item is data bound.
+ * The repeater item control responsible for the event
+ * can be determined from the event parameter.
+ * If you override this method, be sure to call parent's implementation
+ * so that event handlers have chance to respond to the event.
+ * @param TRepeaterItemEventParameter event parameter
+ */
+ public function onItemDataBound($param)
+ {
+ $this->raiseEvent('OnItemDataBound',$this,$param);
+ }
+
+ /**
+ * Raises <b>OnItemCommand</b> event.
+ * This method is invoked after a button control in
+ * a template raises <b>OnCommand</b> event.
+ * The repeater control responsible for the event
+ * can be determined from the event parameter.
+ * The event parameter also contains the information about
+ * the initial sender of the <b>OnCommand</b> event, command name
+ * and command parameter.
+ * You may override this method to provide customized event handling.
+ * Be sure to call parent's implementation so that
+ * event handlers have chance to respond to the event.
+ * @param TRepeaterCommandEventParameter event parameter
+ */
+ public function onItemCommand($param)
+ {
+ $this->raiseEvent('OnItemCommand',$this,$param);
+ }
+
+ /**
+ * Returns the value of the data at the specified field.
+ * If data is an array, TMap or TList, the value will be returned at the index
+ * of the specified field. If the data is a component with a property named
+ * as the field name, the property value will be returned.
+ * Otherwise, an exception will be raised.
+ * @param mixed data item
+ * @param mixed field name
+ * @return mixed data value at the specified field
+ * @throws TInvalidDataValueException if the data is invalid
+ */
+ protected function getDataFieldValue($data,$field)
+ {
+ return TDataFieldAccessor::getDataFieldValue($data,$field);
+ }
+}
+
+/**
+ * TRepeaterItemEventParameter class
+ *
+ * TRepeaterItemEventParameter encapsulates the parameter data for
+ * {@link TRepeater::onItemCreated ItemCreated} event of {@link TRepeater} controls.
+ * The {@link getItem Item} property indicates the repeater item related with the event.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TRepeaterItemEventParameter extends TEventParameter
+{
+ /**
+ * The repeater item control responsible for the event.
+ * @var TControl
+ */
+ private $_item=null;
+
+ /**
+ * Constructor.
+ * @param TControl repeater item related with the corresponding event
+ */
+ public function __construct($item)
+ {
+ $this->_item=$item;
+ }
+
+ /**
+ * @return TControl repeater item related with the corresponding event
+ */
+ public function getItem()
+ {
+ return $this->_item;
+ }
+}
+
+/**
+ * TRepeaterCommandEventParameter class
+ *
+ * TRepeaterCommandEventParameter encapsulates the parameter data for
+ * {@link TRepeater::onItemCommand ItemCommand} event of {@link TRepeater} controls.
+ *
+ * The {@link getItem Item} property indicates the repeater item related with the event.
+ * The {@link getCommandSource CommandSource} refers to the control that originally
+ * raises the Command event.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TRepeaterCommandEventParameter extends TCommandEventParameter
+{
+ /**
+ * @var TControl the repeater item control responsible for the event.
+ */
+ private $_item=null;
+ /**
+ * @var TControl the control originally raises the <b>OnCommand</b> event.
+ */
+ private $_source=null;
+
+ /**
+ * Constructor.
+ * @param TControl repeater item responsible for the event
+ * @param TControl original event sender
+ * @param TCommandEventParameter original event parameter
+ */
+ public function __construct($item,$source,TCommandEventParameter $param)
+ {
+ $this->_item=$item;
+ $this->_source=$source;
+ parent::__construct($param->getCommandName(),$param->getCommandParameter());
+ }
+
+ /**
+ * @return TControl the repeater item control responsible for the event.
+ */
+ public function getItem()
+ {
+ return $this->_item;
+ }
+
+ /**
+ * @return TControl the control originally raises the <b>OnCommand</b> event.
+ */
+ public function getCommandSource()
+ {
+ return $this->_source;
+ }
+}
+
+/**
+ * TRepeaterItem class
+ *
+ * A TRepeaterItem control represents an item in the {@link TRepeater} control,
+ * such as heading section, footer section, or a data item.
+ * The index and data value of the item can be accessed via {@link getItemIndex ItemIndex}>
+ * and {@link getDataItem DataItem} properties, respectively. The type of the item
+ * is given by {@link getItemType ItemType} property.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TRepeaterItem extends TControl implements INamingContainer, IItemDataRenderer
+{
+ /**
+ * index of the data item in the Items collection of repeater
+ */
+ private $_itemIndex;
+ /**
+ * type of the TRepeaterItem
+ * @var TListItemType
+ */
+ private $_itemType;
+ /**
+ * data associated with this item
+ * @var mixed
+ */
+ private $_data;
+
+ /**
+ * @return TListItemType item type
+ */
+ public function getItemType()
+ {
+ return $this->_itemType;
+ }
+
+ /**
+ * @param TListItemType item type.
+ */
+ public function setItemType($value)
+ {
+ $this->_itemType=TPropertyValue::ensureEnum($value,'TListItemType');
+ }
+
+ /**
+ * Returns a value indicating the zero-based index of the item in the corresponding data control's item collection.
+ * If the item is not in the collection (e.g. it is a header item), it returns -1.
+ * @return integer zero-based index of the item.
+ */
+ public function getItemIndex()
+ {
+ return $this->_itemIndex;
+ }
+
+ /**
+ * Sets the zero-based index for the item.
+ * If the item is not in the item collection (e.g. it is a header item), -1 should be used.
+ * @param integer zero-based index of the item.
+ */
+ public function setItemIndex($value)
+ {
+ $this->_itemIndex=TPropertyValue::ensureInteger($value);
+ }
+
+ /**
+ * @return mixed data associated with the item
+ * @since 3.1.0
+ */
+ public function getData()
+ {
+ return $this->_data;
+ }
+
+ /**
+ * @param mixed data to be associated with the item
+ * @since 3.1.0
+ */
+ public function setData($value)
+ {
+ $this->_data=$value;
+ }
+
+ /**
+ * This property is deprecated since v3.1.0.
+ * @return mixed data associated with the item
+ * @deprecated deprecated since v3.1.0. Use {@link getData} instead.
+ */
+ public function getDataItem()
+ {
+ return $this->getData();
+ }
+
+ /**
+ * This property is deprecated since v3.1.0.
+ * @param mixed data to be associated with the item
+ * @deprecated deprecated since version 3.1.0. Use {@link setData} instead.
+ */
+ public function setDataItem($value)
+ {
+ return $this->setData($value);
+ }
+
+ /**
+ * This method overrides parent's implementation by wrapping event parameter
+ * for <b>OnCommand</b> event with item information.
+ * @param TControl the sender of the event
+ * @param TEventParameter event parameter
+ * @return boolean whether the event bubbling should stop here.
+ */
+ public function bubbleEvent($sender,$param)
+ {
+ if($param instanceof TCommandEventParameter)
+ {
+ $this->raiseBubbleEvent($this,new TRepeaterCommandEventParameter($this,$sender,$param));
+ return true;
+ }
+ else
+ return false;
+ }
+}
+
+
+/**
+ * TRepeaterItemCollection class.
+ *
+ * TRepeaterItemCollection represents a collection of repeater items.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TRepeaterItemCollection extends TList
+{
+ /**
+ * Inserts an item at the specified position.
+ * This overrides the parent implementation by inserting only objects that are descendant of {@link TControl}.
+ * @param integer the speicified position.
+ * @param TControl new item
+ * @throws TInvalidDataTypeException if the item to be inserted is not a control.
+ */
+ public function insertAt($index,$item)
+ {
+ if($item instanceof TControl)
+ parent::insertAt($index,$item);
+ else
+ throw new TInvalidDataTypeException('repeateritemcollection_item_invalid');
+ }
+}
+
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-01 06:54:24 +0000