diff options
| author | wei <> | 2006-06-12 03:10:47 +0000 | 
|---|---|---|
| committer | wei <> | 2006-06-12 03:10:47 +0000 | 
| commit | 1c6f1f79d011579a158e87459040075331b636b7 (patch) | |
| tree | 75236e04a5e2aaf9685b34ed7bed0f82e591bbb4 /framework/Web/UI/WebControls/TImageButton.php | |
| parent | f30c38fcc9d6cdfa7aafa5078a58645192c11974 (diff) | |
Minor updates.
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); +	} +} +  ?>
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