From f94b57ffacdc60072627c6c62de7e7708d79d77a Mon Sep 17 00:00:00 2001 From: xue <> Date: Thu, 8 Dec 2005 21:23:43 +0000 Subject: --- framework/Web/UI/WebControls/TRadioButton.php | 182 ++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 framework/Web/UI/WebControls/TRadioButton.php (limited to 'framework/Web/UI/WebControls/TRadioButton.php') diff --git a/framework/Web/UI/WebControls/TRadioButton.php b/framework/Web/UI/WebControls/TRadioButton.php new file mode 100644 index 00000000..302d088c --- /dev/null +++ b/framework/Web/UI/WebControls/TRadioButton.php @@ -0,0 +1,182 @@ + + * @link http://www.pradosoft.com/ + * @copyright Copyright © 2005 PradoSoft + * @license http://www.pradosoft.com/license/ + * @version $Revision: $ $Date: $ + * @package System.Web.UI.WebControls + */ + +/** + * Using TCheckBox parent class + */ +Prado::using('System.Web.UI.WebControls.TCheckBox'); +// using TRadioButtonList ?? +/** + * TRadioButton class + * + * TRadioButton displays a radio button on the page. + * You can specify the caption to display beside the radio buttonby setting + * the {@link setText Text} property. The caption can appear either on the right + * or left of the radio button, which is determined by the {@link setTextAlign TextAlign} + * property. + * + * To determine whether the TRadioButton component is checked, test the {@link getChecked Checked} + * property. The {@link onCheckedChanged CheckedChanged} event is raised when + * the {@link getChecked Checked} state of the TRadioButton component changes + * between posts to the server. You can provide an event handler for + * the {@link onCheckedChanged CheckedChanged} event to to programmatically + * control the actions performed when the state of the TRadioButton component changes + * between posts to the server. + * + * TRadioButton uses {@link setGroupName GroupName} to group together a set of radio buttons. + * + * If {@link setAutoPostBack AutoPostBack} is set true, changing the radio button state + * will cause postback action. And if {@link setCausesValidation CausesValidation} + * is true, validation will also be processed, which can be further restricted within + * a {@link setValidationGroup ValidationGroup}. + * + * Note, {@link setText Text} is rendered as is. Make sure it does not contain unwanted characters + * that may bring security vulnerabilities. + * + * @author Qiang Xue + * @version $Revision: $ $Date: $ + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TRadioButton extends TCheckBox +{ + /** + * @var string the name used to fetch radiobutton post data + */ + private $_uniqueGroupName=null; + + /** + * Loads user input data. + * This method is primarly used by framework developers. + * @param string the key that can be used to retrieve data from the input data collection + * @param array the input data collection + * @return boolean whether the data of the control has been changed + */ + public function loadPostData($key,$values) + { + $uniqueGroupName=$this->getUniqueGroupName(); + $value=isset($values[$uniqueGroupName])?$values[$uniqueGroupName]:null; + if($value!==null && $value===$this->getValueAttribute()) + { + if(!$this->getChecked()) + { + $this->setChecked(true); + return true; + } + else + return false; + } + else if($this->getChecked()) + $this->setChecked(false); + return false; + } + + /** + * @return string the name of the group that the radio button belongs to. Defaults to empty. + */ + public function getGroupName() + { + return $this->getViewState('GroupName',''); + } + + /** + * Sets the name of the group that the radio button belongs to + * @param string the group name + */ + public function setGroupName($value) + { + $this->setViewState('GroupName',$value,''); + } + + /** + * @return string the name used to fetch radiobutton post data + */ + private function getUniqueGroupName() + { + if($this->_uniqueGroupName===null) + { + $groupName=$this->getGroupName(); + $uniqueID=$this->getUniqueID(); + if($uniqueID!=='') + { + if(($pos=strrpos($uniqueID,TControl::ID_SEPARATOR))!==false) + $this->_uniqueGroupName=substr($uniqueID,0,$pos+1).$groupName; + else if($this->getNameContainer() instanceof TRadioButtonList) + $this->_uniqueGroupName=substr($uniqueID,0,$pos); + if(empty($this->_uniqueGroupName)) + $this->_uniqueGroupName=$uniqueID; + } + else + $this->_uniqueGroupName=$groupName; + } + return $this->_uniqueGroupName; + } + + /** + * @return string the value attribute to be rendered + */ + private function getValueAttribute() + { + if(($value=$this->getAttribute('value'))==='') + { + $value=$this->getID(); + return empty($value)?$this->getUniqueID():$value; + } + else + return $value; + } + + /** + * Renders a radiobutton input element. + * @param THtmlWriter the writer for the rendering purpose + * @param string checkbox id + * @param string onclick attribute value for the checkbox + */ + protected function renderInputTag($writer,$clientID,$onclick) + { + if($clientID!=='') + $writer->addAttribute('id',$clientID); + $writer->addAttribute('type','radio'); + $writer->addAttribute('name',$this->getUniqueGroupName()); + $writer->addAttribute('value',$this->getValueAttribute()); + if($this->getChecked()) + $writer->addAttribute('checked','checked'); + if(!$this->getEnabled(true)) + $writer->addAttribute('disabled','disabled'); + $page=$this->getPage(); + if($this->getAutoPostBack() && $page->getClientSupportsJavaScript()) + { + $option=new TPostBackOptions(); + if($this->getCausesValidation() && $page->getValidators($this->getValidationGroup())->getCount()) + { + $option->setPerformValidation(true); + $option->setValidationGroup($this->getValidationGroup()); + } + $option->setAutoPostBack(true); + if(!empty($onclick)) + $onclick=THttpUtility::trimJavaScriptString($onclick); + $onclick.=$page->getClientScript()->getPostBackEventReference($this,'',$option,false); + } + if(!empty($onclick)) + $writer->addAttribute('onclick',$onclick); + if(($accesskey=$this->getAccessKey())!=='') + $writer->addAttribute('accesskey',$accesskey); + if(($tabindex=$this->getTabIndex())>0) + $writer->addAttribute('tabindex',"$tabindex"); + if($attributes=$this->getViewState('InputAttributes',null)) + $writer->addAttributes($attributes); + $writer->renderBeginTag('input'); + $writer->renderEndTag(); + } +} + +?> \ No newline at end of file -- cgit v1.2.3