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Diffstat (limited to 'lib/prado/framework/Web/UI/WebControls/TImageMap.php')
-rw-r--r-- | lib/prado/framework/Web/UI/WebControls/TImageMap.php | 828 |
1 files changed, 828 insertions, 0 deletions
diff --git a/lib/prado/framework/Web/UI/WebControls/TImageMap.php b/lib/prado/framework/Web/UI/WebControls/TImageMap.php new file mode 100644 index 0000000..8775496 --- /dev/null +++ b/lib/prado/framework/Web/UI/WebControls/TImageMap.php @@ -0,0 +1,828 @@ +<?php +/** + * TImageMap and related class file. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @link https://github.com/pradosoft/prado + * @copyright Copyright © 2005-2015 The PRADO Group + * @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT + * @package System.Web.UI.WebControls + */ + +/** + * Includes TImage class file + */ +Prado::using('System.Web.UI.WebControls.TImage'); + +/** + * TImageMap class + * + * TImageMap represents an image on a page. Hotspot regions can be defined + * within the image. Depending on the {@link setHotSpotMode HotSpotMode}, + * clicking on the hotspots may trigger a postback or navigate to a specified + * URL. The hotspots defined may be accessed via {@link getHotSpots HotSpots}. + * Each hotspot is described as a {@link THotSpot}, which can be a circle, + * rectangle, polygon, etc. To add hotspot in a template, use the following, + * <code> + * <com:TImageMap> + * <com:TCircleHotSpot ... /> + * <com:TRectangleHotSpot ... /> + * <com:TPolygonHotSpot ... /> + * </com:TImageMap> + * </code> + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TImageMap extends TImage implements IPostBackEventHandler +{ + const MAP_NAME_PREFIX='ImageMap'; + + /** + * Processes an object that is created during parsing template. + * This method adds {@link THotSpot} objects into the hotspot collection + * of the imagemap. + * @param string|TComponent text string or component parsed and instantiated in template + */ + public function addParsedObject($object) + { + if($object instanceof THotSpot) + $this->getHotSpots()->add($object); + } + + /** + * Adds attribute name-value pairs to renderer. + * This overrides the parent implementation with additional imagemap specific attributes. + * @param THtmlWriter the writer used for the rendering purpose + */ + protected function addAttributesToRender($writer) + { + parent::addAttributesToRender($writer); + if($this->getHotSpots()->getCount()>0) + { + $writer->addAttribute('usemap','#'.self::MAP_NAME_PREFIX.$this->getClientID()); + $writer->addAttribute('id',$this->getUniqueID()); + } + if($this->getEnabled() && !$this->getEnabled(true)) + $writer->addAttribute('disabled','disabled'); + } + + /** + * Renders this imagemap. + * @param THtmlWriter + */ + public function render($writer) + { + parent::render($writer); + + $hotspots=$this->getHotSpots(); + + if($hotspots->getCount()>0) + { + $clientID=$this->getClientID(); + $cs=$this->getPage()->getClientScript(); + $writer->writeLine(); + $writer->addAttribute('name',self::MAP_NAME_PREFIX.$clientID); + $writer->renderBeginTag('map'); + $writer->writeLine(); + if(($mode=$this->getHotSpotMode())===THotSpotMode::NotSet) + $mode=THotSpotMode::Navigate; + $target=$this->getTarget(); + $i=0; + $options['EventTarget'] = $this->getUniqueID(); + $options['StopEvent'] = true; + $cs=$this->getPage()->getClientScript(); + foreach($hotspots as $hotspot) + { + if($hotspot->getHotSpotMode()===THotSpotMode::NotSet) + $hotspot->setHotSpotMode($mode); + if($target!=='' && $hotspot->getTarget()==='') + $hotspot->setTarget($target); + if($hotspot->getHotSpotMode()===THotSpotMode::PostBack) + { + $id=$clientID.'_'.$i; + $writer->addAttribute('id',$id); + $writer->addAttribute('href','#'.$id); //create unique no-op url references + $options['ID']=$id; + $options['EventParameter']="$i"; + $options['CausesValidation']=$hotspot->getCausesValidation(); + $options['ValidationGroup']=$hotspot->getValidationGroup(); + $cs->registerPostBackControl($this->getClientClassName(),$options); + } + $hotspot->render($writer); + $writer->writeLine(); + $i++; + } + $writer->renderEndTag(); + } + } + + /** + * Gets the name of the javascript class responsible for performing postback for this control. + * This method overrides the parent implementation. + * @return string the javascript class name + */ + protected function getClientClassName() + { + return 'Prado.WebUI.TImageMap'; + } + + /** + * Raises the postback event. + * This method is required by {@link IPostBackEventHandler} interface. + * This method is mainly used by framework and control developers. + * @param TEventParameter the event parameter + */ + public function raisePostBackEvent($param) + { + $postBackValue=null; + if($param!=='') + { + $index=TPropertyValue::ensureInteger($param); + $hotspots=$this->getHotSpots(); + if($index>=0 && $index<$hotspots->getCount()) + { + $hotspot=$hotspots->itemAt($index); + if(($mode=$hotspot->getHotSpotMode())===THotSpotMode::NotSet) + $mode=$this->getHotSpotMode(); + if($mode===THotSpotMode::PostBack) + { + $postBackValue=$hotspot->getPostBackValue(); + if($hotspot->getCausesValidation()) + $this->getPage()->validate($hotspot->getValidationGroup()); + } + } + } + if($postBackValue!==null) + $this->onClick(new TImageMapEventParameter($postBackValue)); + } + + /** + * @return THotSpotMode the behavior of hotspot regions in this imagemap when they are clicked. Defaults to THotSpotMode::NotSet. + */ + public function getHotSpotMode() + { + return $this->getViewState('HotSpotMode',THotSpotMode::NotSet); + } + + /** + * Sets the behavior of hotspot regions in this imagemap when they are clicked. + * If an individual hotspot has a mode other than 'NotSet', the mode set in this + * imagemap will be ignored. By default, 'NotSet' is equivalent to 'Navigate'. + * @param THotSpotMode the behavior of hotspot regions in this imagemap when they are clicked. + */ + public function setHotSpotMode($value) + { + $this->setViewState('HotSpotMode',TPropertyValue::ensureEnum($value,'THotSpotMode'),THotSpotMode::NotSet); + } + + /** + * @return THotSpotCollection collection of hotspots defined in this imagemap. + */ + public function getHotSpots() + { + if(($hotspots=$this->getViewState('HotSpots',null))===null) + { + $hotspots=new THotSpotCollection; + $this->setViewState('HotSpots',$hotspots); + } + return $hotspots; + } + + /** + * @return string the target window or frame to display the new page when a hotspot region is clicked within the imagemap. Defaults to ''. + */ + public function getTarget() + { + return $this->getViewState('Target',''); + } + + /** + * @param string the target window or frame to display the new page when a hotspot region is clicked within the imagemap. + */ + public function setTarget($value) + { + $this->setViewState('Target',TPropertyValue::ensureString($value),''); + } + + /** + * Raises <b>OnClick</b> event. + * This method is invoked when a hotspot region is clicked within the imagemap. + * If you override this method, be sure to call the parent implementation + * so that the event handler can be invoked. + * @param TImageMapEventParameter event parameter to be passed to the event handlers + */ + public function onClick($param) + { + $this->raiseEvent('OnClick',$this,$param); + } +} + +/** + * TImageMapEventParameter class. + * + * TImageMapEventParameter represents a postback event parameter + * when a hotspot is clicked and posts back in a {@link TImageMap}. + * To retrieve the post back value associated with the hotspot being clicked, + * access {@link getPostBackValue PostBackValue}. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TImageMapEventParameter extends TEventParameter +{ + private $_postBackValue; + + /** + * Constructor. + * @param string post back value associated with the hotspot clicked + */ + public function __construct($postBackValue) + { + $this->_postBackValue=$postBackValue; + } + + /** + * @return string post back value associated with the hotspot clicked + */ + public function getPostBackValue() + { + return $this->_postBackValue; + } +} + +/** + * THotSpotCollection class. + * + * THotSpotCollection represents a collection of hotspots in an imagemap. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class THotSpotCollection extends TList +{ + /** + * Inserts an item at the specified position. + * This overrides the parent implementation by inserting only {@link THotSpot}. + * @param integer the speicified position. + * @param mixed new item + * @throws TInvalidDataTypeException if the item to be inserted is not a THotSpot. + */ + public function insertAt($index,$item) + { + if($item instanceof THotSpot) + parent::insertAt($index,$item); + else + throw new TInvalidDataTypeException('hotspotcollection_hotspot_required'); + } +} + + +/** + * 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(); + } +} + +/** + * Class TCircleHotSpot. + * + * TCircleHotSpot defines a circular hot spot region in a {@link TImageMap} + * control. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TCircleHotSpot extends THotSpot +{ + /** + * @return string shape of this hotspot. + */ + public function getShape() + { + return 'circle'; + } + + /** + * @return string coordinates defining this hotspot shape + */ + public function getCoordinates() + { + return $this->getX().','.$this->getY().','.$this->getRadius(); + } + + /** + * @return integer radius of the circular HotSpot region. Defaults to 0. + */ + public function getRadius() + { + return $this->getViewState('Radius',0); + } + + /** + * @param integer radius of the circular HotSpot region. + */ + public function setRadius($value) + { + $this->setViewState('Radius',TPropertyValue::ensureInteger($value),0); + } + + /** + * @return integer the X coordinate of the center of the circular HotSpot region. Defaults to 0. + */ + public function getX() + { + return $this->getViewState('X',0); + } + + /** + * @param integer the X coordinate of the center of the circular HotSpot region. + */ + public function setX($value) + { + $this->setViewState('X',TPropertyValue::ensureInteger($value),0); + } + + /** + * @return integer the Y coordinate of the center of the circular HotSpot region. Defaults to 0. + */ + public function getY() + { + return $this->getViewState('Y',0); + } + + /** + * @param integer the Y coordinate of the center of the circular HotSpot region. + */ + public function setY($value) + { + $this->setViewState('Y',TPropertyValue::ensureInteger($value),0); + } +} + +/** + * Class TRectangleHotSpot. + * + * TRectangleHotSpot defines a rectangle hot spot region in a {@link + * TImageMap} control. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TRectangleHotSpot extends THotSpot +{ + /** + * @return string shape of this hotspot. + */ + public function getShape() + { + return 'rect'; + } + + /** + * @return string coordinates defining this hotspot shape + */ + public function getCoordinates() + { + return $this->getLeft().','.$this->getTop().','.$this->getRight().','.$this->getBottom(); + } + + /** + * @return integer the Y coordinate of the bottom side of the rectangle HotSpot region. Defaults to 0. + */ + public function getBottom() + { + return $this->getViewState('Bottom',0); + } + + /** + * @param integer the Y coordinate of the bottom side of the rectangle HotSpot region. + */ + public function setBottom($value) + { + $this->setViewState('Bottom',TPropertyValue::ensureInteger($value),0); + } + + /** + * @return integer the X coordinate of the right side of the rectangle HotSpot region. Defaults to 0. + */ + public function getLeft() + { + return $this->getViewState('Left',0); + } + + /** + * @param integer the X coordinate of the right side of the rectangle HotSpot region. + */ + public function setLeft($value) + { + $this->setViewState('Left',TPropertyValue::ensureInteger($value),0); + } + + /** + * @return integer the X coordinate of the right side of the rectangle HotSpot region. Defaults to 0. + */ + public function getRight() + { + return $this->getViewState('Right',0); + } + + /** + * @param integer the X coordinate of the right side of the rectangle HotSpot region. + */ + public function setRight($value) + { + $this->setViewState('Right',TPropertyValue::ensureInteger($value),0); + } + + /** + * @return integer the Y coordinate of the top side of the rectangle HotSpot region. Defaults to 0. + */ + public function getTop() + { + return $this->getViewState('Top',0); + } + + /** + * @param integer the Y coordinate of the top side of the rectangle HotSpot region. + */ + public function setTop($value) + { + $this->setViewState('Top',TPropertyValue::ensureInteger($value),0); + } +} + +/** + * Class TPolygonHotSpot. + * + * TPolygonHotSpot defines a polygon hot spot region in a {@link + * TImageMap} control. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TPolygonHotSpot extends THotSpot +{ + /** + * @return string shape of this hotspot. + */ + public function getShape() + { + return 'poly'; + } + + /** + * @return string coordinates of the vertices defining the polygon. + * Coordinates are concatenated together with comma ','. Each pair + * represents (x,y) of a vertex. + */ + public function getCoordinates() + { + return $this->getViewState('Coordinates',''); + } + + /** + * @param string coordinates of the vertices defining the polygon. + * Coordinates are concatenated together with comma ','. Each pair + * represents (x,y) of a vertex. + */ + public function setCoordinates($value) + { + $this->setViewState('Coordinates',$value,''); + } +} + + +/** + * THotSpotMode class. + * THotSpotMode defines the enumerable type for the possible hot spot modes. + * + * The following enumerable values are defined: + * - NotSet: the mode is not specified + * - Navigate: clicking on the hotspot will redirect the browser to a different page + * - PostBack: clicking on the hotspot will cause a postback + * - Inactive: the hotspot is inactive (not clickable) + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @package System.Web.UI.WebControls + * @since 3.0.4 + */ +class THotSpotMode extends TEnumerable +{ + const NotSet='NotSet'; + const Navigate='Navigate'; + const PostBack='PostBack'; + const Inactive='Inactive'; +} + |