diff options
Diffstat (limited to 'framework/Web')
| -rw-r--r-- | framework/Web/UI/ActiveControls/TActivePager.php | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/framework/Web/UI/ActiveControls/TActivePager.php b/framework/Web/UI/ActiveControls/TActivePager.php new file mode 100644 index 00000000..b23948e0 --- /dev/null +++ b/framework/Web/UI/ActiveControls/TActivePager.php @@ -0,0 +1,204 @@ +<?php +/** + * TActivePager class file. + * + * @author "gevik" (forum contributor) and Christophe Boulain (Christophe.Boulain@gmail.com) + * @link http://www.pradosoft.com/ + * @copyright Copyright © 2008 PradoSoft + * @license http://www.pradosoft.com/license/ + * @version $Id$ + * @package System.Web.UI.ActiveControls + */ + +/** + * Load active control adapter. + */ +Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter'); + +/** + * TActivePager is the active control counter part of TPager. + * + * When a page change is requested, TActivePager raises a callback instead of the + * traditional postback. + * + * The {@link onCallback OnCallback} event is raised during a callback request + * and it is raise <b>after</b> the {@link onPageIndexChanged OnPageIndexChanged} event. + * + * @author "gevik" (forum contributor) and Christophe Boulain (Christophe.Boulain@gmail.com) + * @version $Id$ + * @package System.Web.UI.ActiveControls + * @since 3.1.2 + */ +class TActivePager extends TPager 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 TBaseActiveControl standard active control options. + */ + public function getActiveControl() + { + return $this->getAdapter()->getBaseActiveControl(); + } + + + /** + * @return TCallbackClientSide client side request options. + */ + public function getClientSide() + { + return $this->getAdapter()->getBaseActiveControl()->getClientSide(); + } + + /** + * Raises the callback event. This method is required by {@link + * ICallbackEventHandler} interface. + * This method is mainly used by framework and control developers. + * @param TCallbackEventParameter the event parameter + */ + + public function raiseCallbackEvent($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); + } + + /** + * Builds a dropdown list pager + * Override parent implementation to build Active dropdown lists. + */ + protected function buildListPager() + { + $list=new TActiveDropDownList; + + $list->getAdapter()->getBaseActiveControl()->setClientSide( + $this->getClientSide() + ); + + $this->getControls()->add($list); + $list->setDataSource(range(1,$this->getPageCount())); + $list->dataBind(); + $list->setSelectedIndex($this->getCurrentPageIndex()); + $list->setAutoPostBack(true); + $list->attachEventHandler('OnSelectedIndexChanged',array($this,'listIndexChanged')); + $list->attachEventHandler('OnCallback', array($this, 'handleCallback')); + } + + /** + * Creates a pager button. + * Override parent implementation to create, depending on the button type, a TActiveLinkButton, + * a TActiveButton or a TActiveImageButton may be created. + * + * @param string button type, either LinkButton or PushButton + * @param boolean whether the button should be enabled + * @param string caption of the button + * @param string CommandName corresponding to the OnCommand event of the button + * @param string CommandParameter corresponding to the OnCommand event of the button + * @return mixed the button instance + */ + protected function createPagerButton($buttonType,$enabled,$text,$commandName,$commandParameter) + { + if($buttonType===TPagerButtonType::LinkButton) + { + if($enabled) + $button=new TActiveLinkButton; + else + { + $button=new TLabel; + $button->setText($text); + return $button; + } + } + else if($buttonType===TPagerButtonType::ImageButton) + { + $button = new TActiveImageButton; + $button->setImageUrl($this->getPageImageUrl($text,$commandName)); + if($enabled) + $button->Visible = true; + else + $button->Visible = false; + } + else + { + $button=new TActiveButton; + if(!$enabled) + $button->setEnabled(false); + } + + if($buttonType===TPagerButtonType::ImageButton) + { + $button->ImageUrl = $text; + } + + $button->setText($text); + $button->setCommandName($commandName); + $button->setCommandParameter($commandParameter); + $button->setCausesValidation(false); + + $button->attachEventHandler('OnCallback', array($this, 'handleCallback')); + $button->getAdapter()->getBaseActiveControl()->setClientSide( + $this->getClientSide() + ); + + return $button; + } + + /** + * Event handler to the OnCallback active buttons or active dropdownlist. + * This handler will raise the {@link onCallback OnCallback} event + * + * @param mixed $sender + * @param TCallbackEventParameter $param + */ + public function handleCallback ($sender,$param) + { + // Update all the buttons pagers attached to the same control. + // Dropdown pagers doesn't need to be re-rendered. + $controlToPaginate=$this->getControlToPaginate(); + foreach ($this->getNamingContainer()->findControlsByType('TActivePager') as $control) + { + if ($control->getMode() !== TPagerMode::DropDownList && $control->getControlToPaginate()===$controlToPaginate) + $control->render($param->getNewWriter()); + } + + // Raise callback event + $this->onCallback($param); + } + + public function render ($writer) + { + if($this->getHasPreRendered()) + { + parent::render($writer); + if($this->getActiveControl()->canUpdateClientSide()) + $this->getPage()->getCallbackClient()->replaceContent($this,$writer); + } + else + { + $this->getPage()->getAdapter()->registerControlToRender($this,$writer); + } + } +} + +?>
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