diff options
author | xue <> | 2006-06-13 02:07:25 +0000 |
---|---|---|
committer | xue <> | 2006-06-13 02:07:25 +0000 |
commit | 6e275c7db5cbbf1bf0331bbaf60f3b3ec612c3a7 (patch) | |
tree | a7486cb27f2bee3bb492da2a393ae0272119826c /framework/Web/UI/WebControls/TImageButton.php | |
parent | 1c6f1f79d011579a158e87459040075331b636b7 (diff) |
Fixed #224.
Diffstat (limited to 'framework/Web/UI/WebControls/TImageButton.php')
-rw-r--r-- | framework/Web/UI/WebControls/TImageButton.php | 767 |
1 files changed, 389 insertions, 378 deletions
diff --git a/framework/Web/UI/WebControls/TImageButton.php b/framework/Web/UI/WebControls/TImageButton.php index 690a8eea..669779cd 100644 --- a/framework/Web/UI/WebControls/TImageButton.php +++ b/framework/Web/UI/WebControls/TImageButton.php @@ -1,378 +1,389 @@ -<?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 +<?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();
+ $cs->registerPostBackControl($this->getClientClassName(),$this->getPostBackOptions());
+ }
+ }
+
+ /**
+ * Gets the name of the javascript class responsible for performing postback for this control.
+ * This method overrides the parent implementation.
+ * @return string the javascript class name
+ */
+ protected function getClientClassName()
+ {
+ return 'Prado.WebUI.TImageButton';
+ }
+
+ /**
+ * @return boolean whether to perform validation if the button is clicked
+ */
+ protected function canCauseValidation()
+ {
+ if($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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