diff options
Diffstat (limited to 'framework/Web/UI/WebControls/TImageButton.php')
-rw-r--r-- | framework/Web/UI/WebControls/TImageButton.php | 754 |
1 files changed, 377 insertions, 377 deletions
diff --git a/framework/Web/UI/WebControls/TImageButton.php b/framework/Web/UI/WebControls/TImageButton.php index f7f6408a..690a8eea 100644 --- a/framework/Web/UI/WebControls/TImageButton.php +++ b/framework/Web/UI/WebControls/TImageButton.php @@ -1,378 +1,378 @@ -<?php
-/**
- * TImageButton class file
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright © 2005 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Revision: $ $Date: $
- * @package System.Web.UI.WebControls
- */
-
-/**
- * Includes TImage class file
- */
-Prado::using('System.Web.UI.WebControls.TImage');
-
-/**
- * TImageButton class
- *
- * TImageButton creates an image button on the page. It is used to submit data to a page.
- * You can create either a <b>submit</b> button or a <b>command</b> button.
- *
- * A <b>command</b> button has a command name (specified by
- * the {@link setCommandName CommandName} property) and and a command parameter
- * (specified by {@link setCommandParameter CommandParameter} property)
- * associated with the button. This allows you to create multiple TLinkButton
- * components on a Web page and programmatically determine which one is clicked
- * with what parameter. You can provide an event handler for
- * {@link onCommand OnCommand} event to programmatically control the actions performed
- * when the command button is clicked. In the event handler, you can determine
- * the {@link setCommandName CommandName} property value and
- * the {@link setCommandParameter CommandParameter} property value
- * through the {@link TCommandParameter::getName Name} and
- * {@link TCommandParameter::getParameter Parameter} properties of the event
- * parameter which is of type {@link TCommandEventParameter}.
- *
- * A <b>submit</b> button does not have a command name associated with the button
- * and clicking on it simply posts the Web page back to the server.
- * By default, a TImageButton control is a submit button.
- * You can provide an event handler for the {@link onClick OnClick} event
- * to programmatically control the actions performed when the submit button is clicked.
- * The coordinates of the clicking point can be obtained from the {@link onClick OnClick}
- * event parameter, which is of type {@link TImageClickEventParameter}.
- *
- * Clicking on button can trigger form validation, if
- * {@link setCausesValidation CausesValidation} is true.
- * And the validation may be restricted within a certain group of validator
- * controls by setting {@link setValidationGroup ValidationGroup} property.
- * If validation is successful, the data will be post back to the same page.
- *
- * TImageButton displays the {@link setText Text} property as the hint text to the displayed image.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Revision: $ $Date: $
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TImageButton extends TImage implements IPostBackDataHandler, IPostBackEventHandler, IButtonControl
-{
- /**
- * @var integer x coordinate that the image is being clicked at
- */
- private $_x=0;
- /**
- * @var integer y coordinate that the image is being clicked at
- */
- private $_y=0;
-
- /**
- * @return string tag name of the button
- */
- protected function getTagName()
- {
- return 'input';
- }
-
- /**
- * Adds attribute name-value pairs to renderer.
- * This overrides the parent implementation with additional button specific attributes.
- * @param THtmlWriter the writer used for the rendering purpose
- */
- protected function addAttributesToRender($writer)
- {
- $page=$this->getPage();
- $page->ensureRenderInForm($this);
- $writer->addAttribute('type','image');
- if(($uniqueID=$this->getUniqueID())!=='')
- $writer->addAttribute('name',$uniqueID);
- if($this->getEnabled(true))
- $this->renderClientControlScript($writer);
- else if($this->getEnabled()) // in this case, parent will not render 'disabled'
- $writer->addAttribute('disabled','disabled');
- parent::addAttributesToRender($writer);
- }
-
- /**
- * Renders the client-script code.
- */
- protected function renderClientControlScript($writer)
- {
- if($this->canCauseValidation())
- {
- $writer->addAttribute('id',$this->getClientID());
- $cs = $this->getPage()->getClientScript();
- $cs->registerPostBackControl('Prado.WebUI.TImageButton',$this->getPostBackOptions());
- }
- }
- /**
- * @return boolean whether to perform validation if the button is clicked
- */
- protected function canCauseValidation()
- {
- if($this->getCausesValidation())
- {
- $group=$this->getValidationGroup();
- return $this->getPage()->getValidators($group)->getCount()>0;
- }
- else
- return false;
- }
-
- /**
- * Returns postback specifications for the button.
- * This method is used by framework and control developers.
- * @return array parameters about how the button defines its postback behavior.
- */
- protected function getPostBackOptions()
- {
- $options['ID'] = $this->getClientID();
- $options['CausesValidation'] = $this->getCausesValidation();
- $options['ValidationGroup'] = $this->getValidationGroup();
- $options['EventTarget'] = $this->getUniqueID();
-
- return $options;
- }
-
- /**
- * This method checks if the TImageButton is clicked and loads the coordinates of the clicking position.
- * This method is primarly used by framework developers.
- * @param string the key that can be used to retrieve data from the input data collection
- * @param array the input data collection
- * @return boolean whether the data of the component has been changed
- */
- public function loadPostData($key,$values)
- {
- $uid=$this->getUniqueID();
- if(isset($values["{$uid}_x"]) && isset($values["{$uid}_y"]))
- {
- $this->_x=intval($values["{$uid}_x"]);
- $this->_y=intval($values["{$uid}_y"]);
- $this->getPage()->setPostBackEventTarget($this);
- }
- return false;
- }
-
- /**
- * A dummy implementation for the IPostBackDataHandler interface.
- */
- public function raisePostDataChangedEvent()
- {
- // no post data to handle
- }
-
- /**
- * This method is invoked when the button is clicked.
- * The method raises 'OnClick' 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 TImageClickEventParameter event parameter to be passed to the event handlers
- */
- public function onClick($param)
- {
- $this->raiseEvent('OnClick',$this,$param);
- }
-
- /**
- * This method is invoked when the button is clicked.
- * The method raises 'OnCommand' event to fire up the event handlers.
- * If you override this method, be sure to call the parent implementation
- * so that the event handlers can be invoked.
- * @param TCommandEventParameter event parameter to be passed to the event handlers
- */
- public function onCommand($param)
- {
- $this->raiseEvent('OnCommand',$this,$param);
- $this->raiseBubbleEvent($this,$param);
- }
-
- /**
- * Raises the postback event.
- * This method is required by {@link IPostBackEventHandler} interface.
- * If {@link getCausesValidation CausesValidation} is true, it will
- * invoke the page's {@link TPage::validate validate} method first.
- * It will raise {@link onClick OnClick} and {@link onCommand OnCommand} events.
- * This method is mainly used by framework and control developers.
- * @param TEventParameter the event parameter
- */
- public function raisePostBackEvent($param)
- {
- if($this->getCausesValidation())
- $this->getPage()->validate($this->getValidationGroup());
- $this->onClick(new TImageClickEventParameter($this->_x,$this->_y));
- $this->onCommand(new TCommandEventParameter($this->getCommandName(),$this->getCommandParameter()));
- }
-
- /**
- * @return boolean whether postback event trigger by this button will cause input validation, default is true
- */
- public function getCausesValidation()
- {
- return $this->getViewState('CausesValidation',true);
- }
-
- /**
- * @param boolean whether postback event trigger by this button will cause input validation
- */
- public function setCausesValidation($value)
- {
- $this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true);
- }
-
- /**
- * @return string the command name associated with the {@link onCommand OnCommand} event.
- */
- public function getCommandName()
- {
- return $this->getViewState('CommandName','');
- }
-
- /**
- * @param string the command name associated with the {@link onCommand OnCommand} event.
- */
- public function setCommandName($value)
- {
- $this->setViewState('CommandName',$value,'');
- }
-
- /**
- * @return string the parameter associated with the {@link onCommand OnCommand} event
- */
- public function getCommandParameter()
- {
- return $this->getViewState('CommandParameter','');
- }
-
- /**
- * @param string the parameter associated with the {@link onCommand OnCommand} event.
- */
- public function setCommandParameter($value)
- {
- $this->setViewState('CommandParameter',$value,'');
- }
-
- /**
- * @return string the group of validators which the button causes validation upon postback
- */
- public function getValidationGroup()
- {
- return $this->getViewState('ValidationGroup','');
- }
-
- /**
- * @param string the group of validators which the button causes validation upon postback
- */
- public function setValidationGroup($value)
- {
- $this->setViewState('ValidationGroup',$value,'');
- }
-
- /**
- * @return string caption of the button
- */
- public function getText()
- {
- return $this->getAlternateText();
- }
-
- /**
- * @param string caption of the button
- */
- public function setText($value)
- {
- $this->setAlternateText($value);
- }
-
- /**
- * Registers the image button to receive postback data during postback.
- * This is necessary because an image button, when postback, does not have
- * direct mapping between post data and the image button name.
- * This method overrides the parent implementation and is invoked before render.
- * @param mixed event parameter
- */
- public function onPreRender($param)
- {
- parent::onPreRender($param);
- $this->getPage()->registerRequiresPostData($this);
- }
-
- /**
- * Renders the body content enclosed between the control tag.
- * This overrides the parent implementation with nothing to be rendered.
- * @param THtmlWriter the writer used for the rendering purpose
- */
- public function renderContents($writer)
- {
- }
-}
-
-/**
- * TImageClickEventParameter class
- *
- * TImageClickEventParameter encapsulates the parameter data for
- * {@link TImageButton::onClick Click} event of {@link TImageButton} controls.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Revision: $ $Date: $
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TImageClickEventParameter extends TEventParameter
-{
- /**
- * the X coordinate of the clicking point
- * @var integer
- */
- public $_x=0;
- /**
- * the Y coordinate of the clicking point
- * @var integer
- */
- public $_y=0;
-
- /**
- * Constructor.
- * @param integer X coordinate of the clicking point
- * @param integer Y coordinate of the clicking point
- */
- public function __construct($x,$y)
- {
- $this->_x=$x;
- $this->_y=$y;
- }
-
- /**
- * @return integer X coordinate of the clicking point, defaults to 0
- */
- public function getX()
- {
- return $this->_x;
- }
-
- /**
- * @param integer X coordinate of the clicking point
- */
- public function setX($value)
- {
- $this->_x=TPropertyValue::ensureInteger($value);
- }
-
- /**
- * @return integer Y coordinate of the clicking point, defaults to 0
- */
- public function getY()
- {
- return $this->_y;
- }
-
- /**
- * @param integer Y coordinate of the clicking point
- */
- public function setY($value)
- {
- $this->_y=TPropertyValue::ensureInteger($value);
- }
-}
-
+<?php +/** + * TImageButton class file + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @link http://www.pradosoft.com/ + * @copyright Copyright © 2005 PradoSoft + * @license http://www.pradosoft.com/license/ + * @version $Revision: $ $Date: $ + * @package System.Web.UI.WebControls + */ + +/** + * Includes TImage class file + */ +Prado::using('System.Web.UI.WebControls.TImage'); + +/** + * TImageButton class + * + * TImageButton creates an image button on the page. It is used to submit data to a page. + * You can create either a <b>submit</b> button or a <b>command</b> button. + * + * A <b>command</b> button has a command name (specified by + * the {@link setCommandName CommandName} property) and and a command parameter + * (specified by {@link setCommandParameter CommandParameter} property) + * associated with the button. This allows you to create multiple TLinkButton + * components on a Web page and programmatically determine which one is clicked + * with what parameter. You can provide an event handler for + * {@link onCommand OnCommand} event to programmatically control the actions performed + * when the command button is clicked. In the event handler, you can determine + * the {@link setCommandName CommandName} property value and + * the {@link setCommandParameter CommandParameter} property value + * through the {@link TCommandParameter::getName Name} and + * {@link TCommandParameter::getParameter Parameter} properties of the event + * parameter which is of type {@link TCommandEventParameter}. + * + * A <b>submit</b> button does not have a command name associated with the button + * and clicking on it simply posts the Web page back to the server. + * By default, a TImageButton control is a submit button. + * You can provide an event handler for the {@link onClick OnClick} event + * to programmatically control the actions performed when the submit button is clicked. + * The coordinates of the clicking point can be obtained from the {@link onClick OnClick} + * event parameter, which is of type {@link TImageClickEventParameter}. + * + * Clicking on button can trigger form validation, if + * {@link setCausesValidation CausesValidation} is true. + * And the validation may be restricted within a certain group of validator + * controls by setting {@link setValidationGroup ValidationGroup} property. + * If validation is successful, the data will be post back to the same page. + * + * TImageButton displays the {@link setText Text} property as the hint text to the displayed image. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @version $Revision: $ $Date: $ + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TImageButton extends TImage implements IPostBackDataHandler, IPostBackEventHandler, IButtonControl +{ + /** + * @var integer x coordinate that the image is being clicked at + */ + private $_x=0; + /** + * @var integer y coordinate that the image is being clicked at + */ + private $_y=0; + + /** + * @return string tag name of the button + */ + protected function getTagName() + { + return 'input'; + } + + /** + * Adds attribute name-value pairs to renderer. + * This overrides the parent implementation with additional button specific attributes. + * @param THtmlWriter the writer used for the rendering purpose + */ + protected function addAttributesToRender($writer) + { + $page=$this->getPage(); + $page->ensureRenderInForm($this); + $writer->addAttribute('type','image'); + if(($uniqueID=$this->getUniqueID())!=='') + $writer->addAttribute('name',$uniqueID); + if($this->getEnabled(true)) + $this->renderClientControlScript($writer); + else if($this->getEnabled()) // in this case, parent will not render 'disabled' + $writer->addAttribute('disabled','disabled'); + parent::addAttributesToRender($writer); + } + + /** + * Renders the client-script code. + */ + protected function renderClientControlScript($writer) + { + if($this->canCauseValidation()) + { + $writer->addAttribute('id',$this->getClientID()); + $cs = $this->getPage()->getClientScript(); + $cs->registerPostBackControl('Prado.WebUI.TImageButton',$this->getPostBackOptions()); + } + } + /** + * @return boolean whether to perform validation if the button is clicked + */ + protected function canCauseValidation() + { + if($this->getCausesValidation()) + { + $group=$this->getValidationGroup(); + return $this->getPage()->getValidators($group)->getCount()>0; + } + else + return false; + } + + /** + * Returns postback specifications for the button. + * This method is used by framework and control developers. + * @return array parameters about how the button defines its postback behavior. + */ + protected function getPostBackOptions() + { + $options['ID'] = $this->getClientID(); + $options['CausesValidation'] = $this->getCausesValidation(); + $options['ValidationGroup'] = $this->getValidationGroup(); + $options['EventTarget'] = $this->getUniqueID(); + + return $options; + } + + /** + * This method checks if the TImageButton is clicked and loads the coordinates of the clicking position. + * This method is primarly used by framework developers. + * @param string the key that can be used to retrieve data from the input data collection + * @param array the input data collection + * @return boolean whether the data of the component has been changed + */ + public function loadPostData($key,$values) + { + $uid=$this->getUniqueID(); + if(isset($values["{$uid}_x"]) && isset($values["{$uid}_y"])) + { + $this->_x=intval($values["{$uid}_x"]); + $this->_y=intval($values["{$uid}_y"]); + $this->getPage()->setPostBackEventTarget($this); + } + return false; + } + + /** + * A dummy implementation for the IPostBackDataHandler interface. + */ + public function raisePostDataChangedEvent() + { + // no post data to handle + } + + /** + * This method is invoked when the button is clicked. + * The method raises 'OnClick' 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 TImageClickEventParameter event parameter to be passed to the event handlers + */ + public function onClick($param) + { + $this->raiseEvent('OnClick',$this,$param); + } + + /** + * This method is invoked when the button is clicked. + * The method raises 'OnCommand' event to fire up the event handlers. + * If you override this method, be sure to call the parent implementation + * so that the event handlers can be invoked. + * @param TCommandEventParameter event parameter to be passed to the event handlers + */ + public function onCommand($param) + { + $this->raiseEvent('OnCommand',$this,$param); + $this->raiseBubbleEvent($this,$param); + } + + /** + * Raises the postback event. + * This method is required by {@link IPostBackEventHandler} interface. + * If {@link getCausesValidation CausesValidation} is true, it will + * invoke the page's {@link TPage::validate validate} method first. + * It will raise {@link onClick OnClick} and {@link onCommand OnCommand} events. + * This method is mainly used by framework and control developers. + * @param TEventParameter the event parameter + */ + public function raisePostBackEvent($param) + { + if($this->getCausesValidation()) + $this->getPage()->validate($this->getValidationGroup()); + $this->onClick(new TImageClickEventParameter($this->_x,$this->_y)); + $this->onCommand(new TCommandEventParameter($this->getCommandName(),$this->getCommandParameter())); + } + + /** + * @return boolean whether postback event trigger by this button will cause input validation, default is true + */ + public function getCausesValidation() + { + return $this->getViewState('CausesValidation',true); + } + + /** + * @param boolean whether postback event trigger by this button will cause input validation + */ + public function setCausesValidation($value) + { + $this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true); + } + + /** + * @return string the command name associated with the {@link onCommand OnCommand} event. + */ + public function getCommandName() + { + return $this->getViewState('CommandName',''); + } + + /** + * @param string the command name associated with the {@link onCommand OnCommand} event. + */ + public function setCommandName($value) + { + $this->setViewState('CommandName',$value,''); + } + + /** + * @return string the parameter associated with the {@link onCommand OnCommand} event + */ + public function getCommandParameter() + { + return $this->getViewState('CommandParameter',''); + } + + /** + * @param string the parameter associated with the {@link onCommand OnCommand} event. + */ + public function setCommandParameter($value) + { + $this->setViewState('CommandParameter',$value,''); + } + + /** + * @return string the group of validators which the button causes validation upon postback + */ + public function getValidationGroup() + { + return $this->getViewState('ValidationGroup',''); + } + + /** + * @param string the group of validators which the button causes validation upon postback + */ + public function setValidationGroup($value) + { + $this->setViewState('ValidationGroup',$value,''); + } + + /** + * @return string caption of the button + */ + public function getText() + { + return $this->getAlternateText(); + } + + /** + * @param string caption of the button + */ + public function setText($value) + { + $this->setAlternateText($value); + } + + /** + * Registers the image button to receive postback data during postback. + * This is necessary because an image button, when postback, does not have + * direct mapping between post data and the image button name. + * This method overrides the parent implementation and is invoked before render. + * @param mixed event parameter + */ + public function onPreRender($param) + { + parent::onPreRender($param); + $this->getPage()->registerRequiresPostData($this); + } + + /** + * Renders the body content enclosed between the control tag. + * This overrides the parent implementation with nothing to be rendered. + * @param THtmlWriter the writer used for the rendering purpose + */ + public function renderContents($writer) + { + } +} + +/** + * TImageClickEventParameter class + * + * TImageClickEventParameter encapsulates the parameter data for + * {@link TImageButton::onClick Click} event of {@link TImageButton} controls. + * + * @author Qiang Xue <qiang.xue@gmail.com> + * @version $Revision: $ $Date: $ + * @package System.Web.UI.WebControls + * @since 3.0 + */ +class TImageClickEventParameter extends TEventParameter +{ + /** + * the X coordinate of the clicking point + * @var integer + */ + public $_x=0; + /** + * the Y coordinate of the clicking point + * @var integer + */ + public $_y=0; + + /** + * Constructor. + * @param integer X coordinate of the clicking point + * @param integer Y coordinate of the clicking point + */ + public function __construct($x,$y) + { + $this->_x=$x; + $this->_y=$y; + } + + /** + * @return integer X coordinate of the clicking point, defaults to 0 + */ + public function getX() + { + return $this->_x; + } + + /** + * @param integer X coordinate of the clicking point + */ + public function setX($value) + { + $this->_x=TPropertyValue::ensureInteger($value); + } + + /** + * @return integer Y coordinate of the clicking point, defaults to 0 + */ + public function getY() + { + return $this->_y; + } + + /** + * @param integer Y coordinate of the clicking point + */ + public function setY($value) + { + $this->_y=TPropertyValue::ensureInteger($value); + } +} + ?>
\ No newline at end of file |