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Diffstat (limited to 'framework/Web/UI/WebControls/THotSpot.php')
| -rw-r--r-- | framework/Web/UI/WebControls/THotSpot.php | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/THotSpot.php b/framework/Web/UI/WebControls/THotSpot.php new file mode 100644 index 00000000..bc398f10 --- /dev/null +++ b/framework/Web/UI/WebControls/THotSpot.php @@ -0,0 +1,322 @@ +<?php +/** + * TImageMap and related class file. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @link http://www.pradosoft.com/ + * @copyright Copyright © 2005-2014 PradoSoft + * @license http://www.pradosoft.com/license/ + * @package System.Web.UI.WebControls + */ + + +/** + * THotSpot class. + * + * THotSpot implements the basic functionality common to all hot spot shapes. + * Derived classes include {@link TCircleHotSpot}, {@link TPolygonHotSpot} + * and {@link TRectangleHotSpot}. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +abstract class THotSpot extends TComponent +{ + private $_viewState=array(); + + /** + * Returns a viewstate value. + * + * This function is very useful in defining getter functions for component properties + * that must be kept in viewstate. + * @param string the name of the viewstate value to be returned + * @param mixed the default value. If $key is not found in viewstate, $defaultValue will be returned + * @return mixed the viewstate value corresponding to $key + */ + protected function getViewState($key,$defaultValue=null) + { + return isset($this->_viewState[$key])?$this->_viewState[$key]:$defaultValue; + } + + /** + * Sets a viewstate value. + * + * This function is very useful in defining setter functions for control properties + * that must be kept in viewstate. + * Make sure that the viewstate value must be serializable and unserializable. + * @param string the name of the viewstate value + * @param mixed the viewstate value to be set + * @param mixed default value. If $value===$defaultValue, the item will be cleared from the viewstate. + */ + protected function setViewState($key,$value,$defaultValue=null) + { + if($value===$defaultValue) + unset($this->_viewState[$key]); + else + $this->_viewState[$key]=$value; + } + + /** + * @return string shape of the hotspot, can be 'circle', 'rect', 'poly', etc. + */ + abstract public function getShape(); + /** + * @return string coordinates defining the hotspot shape. + */ + abstract public function getCoordinates(); + + /** + * @return string the access key that allows you to quickly navigate to the HotSpot region. Defaults to ''. + */ + public function getAccessKey() + { + return $this->getViewState('AccessKey',''); + } + + /** + * @param string the access key that allows you to quickly navigate to the HotSpot region. + */ + public function setAccessKey($value) + { + $this->setViewState('AccessKey',TPropertyValue::ensureString($value),''); + } + + /** + * @return string the alternate text to display for a HotSpot object. Defaults to ''. + */ + public function getAlternateText() + { + return $this->getViewState('AlternateText',''); + } + + /** + * @param string the alternate text to display for a HotSpot object. + */ + public function setAlternateText($value) + { + $this->setViewState('AlternateText',TPropertyValue::ensureString($value),''); + } + + /** + * @return THotSpotMode the behavior of a HotSpot object when it is clicked. Defaults to THotSpotMode::NotSet. + */ + public function getHotSpotMode() + { + return $this->getViewState('HotSpotMode',THotSpotMode::NotSet); + } + + /** + * @param THotSpotMode the behavior of a HotSpot object when it is clicked. + */ + public function setHotSpotMode($value) + { + $this->setViewState('HotSpotMode',TPropertyValue::ensureEnum($value,'THotSpotMode'),THotSpotMode::NotSet); + } + + /** + * @return string the URL to navigate to when a HotSpot object is clicked. Defaults to ''. + */ + public function getNavigateUrl() + { + return $this->getViewState('NavigateUrl',''); + } + + /** + * @param string the URL to navigate to when a HotSpot object is clicked. + */ + public function setNavigateUrl($value) + { + $this->setViewState('NavigateUrl',TPropertyValue::ensureString($value),''); + } + + /** + * @return string a value that is post back when the HotSpot is clicked. Defaults to ''. + */ + public function getPostBackValue() + { + return $this->getViewState('PostBackValue',''); + } + + /** + * @param string a value that is post back when the HotSpot is clicked. + */ + public function setPostBackValue($value) + { + $this->setViewState('PostBackValue',TPropertyValue::ensureString($value),''); + } + + /** + * @return integer the tab index of the HotSpot region. Defaults to 0. + */ + public function getTabIndex() + { + return $this->getViewState('TabIndex',0); + } + + /** + * @param integer the tab index of the HotSpot region. + */ + public function setTabIndex($value) + { + $this->setViewState('TabIndex',TPropertyValue::ensureInteger($value),0); + } + + /** + * @return boolean whether postback event trigger by this hotspot will cause input validation, default is true + */ + public function getCausesValidation() + { + return $this->getViewState('CausesValidation',true); + } + + /** + * @param boolean whether postback event trigger by this hotspot will cause input validation + */ + public function setCausesValidation($value) + { + $this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true); + } + + /** + * @return string the group of validators which the hotspot causes validation upon postback + */ + public function getValidationGroup() + { + return $this->getViewState('ValidationGroup',''); + } + + /** + * @param string the group of validators which the hotspot causes validation upon postback + */ + public function setValidationGroup($value) + { + $this->setViewState('ValidationGroup',$value,''); + } + + /** + * @return string the target window or frame to display the new page when the HotSpot region + * is clicked. Defaults to ''. + */ + public function getTarget() + { + return $this->getViewState('Target',''); + } + + /** + * @param string the target window or frame to display the new page when the HotSpot region + * is clicked. + */ + public function setTarget($value) + { + $this->setViewState('Target',TPropertyValue::ensureString($value),''); + } + + /** + * @return boolean whether the hotspot has custom attributes + */ + public function getHasAttributes() + { + if($attributes=$this->getViewState('Attributes',null)) + return $attributes->getCount()>0; + else + return false; + } + + /** + * Returns the list of custom attributes. + * Custom attributes are name-value pairs that may be rendered + * as HTML tags' attributes. + * @return TAttributeCollection the list of custom attributes + */ + public function getAttributes() + { + if($attributes=$this->getViewState('Attributes',null)) + return $attributes; + else + { + $attributes=new TAttributeCollection; + $this->setViewState('Attributes',$attributes,null); + return $attributes; + } + } + + /** + * @return boolean whether the named attribute exists + */ + public function hasAttribute($name) + { + if($attributes=$this->getViewState('Attributes',null)) + return $attributes->contains($name); + else + return false; + } + + /** + * @return string attribute value, null if attribute does not exist + */ + public function getAttribute($name) + { + if($attributes=$this->getViewState('Attributes',null)) + return $attributes->itemAt($name); + else + return null; + } + + /** + * Sets a custom hotspot attribute. + * @param string attribute name + * @param string value of the attribute + */ + public function setAttribute($name,$value) + { + $this->getAttributes()->add($name,$value); + } + + /** + * Removes the named attribute. + * @param string the name of the attribute to be removed. + * @return string attribute value removed, null if attribute does not exist. + */ + public function removeAttribute($name) + { + if($attributes=$this->getViewState('Attributes',null)) + return $attributes->remove($name); + else + return null; + } + + /** + * Renders this hotspot. + * @param THtmlWriter + */ + public function render($writer) + { + $writer->addAttribute('shape',$this->getShape()); + $writer->addAttribute('coords',$this->getCoordinates()); + if(($mode=$this->getHotSpotMode())===THotSpotMode::NotSet) + $mode=THotSpotMode::Navigate; + if($mode===THotSpotMode::Navigate) + { + $writer->addAttribute('href',$this->getNavigateUrl()); + if(($target=$this->getTarget())!=='') + $writer->addAttribute('target',$target); + } + else if($mode===THotSpotMode::Inactive) + $writer->addAttribute('nohref','true'); + $text=$this->getAlternateText(); + $writer->addAttribute('title',$text); + $writer->addAttribute('alt',$text); + if(($accessKey=$this->getAccessKey())!=='') + $writer->addAttribute('accesskey',$accessKey); + if(($tabIndex=$this->getTabIndex())!==0) + $writer->addAttribute('tabindex',"$tabIndex"); + if($this->getHasAttributes()) + { + foreach($this->getAttributes() as $name=>$value) + $writer->addAttribute($name,$value); + } + $writer->renderBeginTag('area'); + $writer->renderEndTag(); + } +}
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