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authorctrlaltca <>2012-07-12 11:21:01 +0000
committerctrlaltca <>2012-07-12 11:21:01 +0000
commit903ae8a581fac1e6917fc3e31d2ad8fb91df80c3 (patch)
treee08bf04f0823650a231227ac3499121270172a23 /framework/Web/UI/ActiveControls/TActiveControlAdapter.php
parent3e4e6e66aeb3f8fea4e1eb4237498ef9d2358f63 (diff)
standardize the use of unix eol; use svn properties to enforce native eol
Diffstat (limited to 'framework/Web/UI/ActiveControls/TActiveControlAdapter.php')
-rw-r--r--framework/Web/UI/ActiveControls/TActiveControlAdapter.php1150
1 files changed, 575 insertions, 575 deletions
diff --git a/framework/Web/UI/ActiveControls/TActiveControlAdapter.php b/framework/Web/UI/ActiveControls/TActiveControlAdapter.php
index 8a0c8aec..7e7a82fe 100644
--- a/framework/Web/UI/ActiveControls/TActiveControlAdapter.php
+++ b/framework/Web/UI/ActiveControls/TActiveControlAdapter.php
@@ -1,575 +1,575 @@
-<?php
-/**
- * TActiveControlAdapter and TCallbackPageStateTracker class file.
- *
- * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright &copy; 2005-2012 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- */
-
-/*
- * Load common active control options.
- */
-Prado::using('System.Web.UI.ActiveControls.TBaseActiveControl');
-
-/**
- * TActiveControlAdapter class.
- *
- * Customize the parent TControl class for active control classes.
- * TActiveControlAdapter instantiates a common base active control class
- * throught the {@link getBaseActiveControl BaseActiveControl} property.
- * The type of BaseActiveControl can be provided in the second parameter in the
- * constructor. Default is TBaseActiveControl or TBaseActiveCallbackControl if
- * the control adapted implements ICallbackEventHandler.
- *
- * TActiveControlAdapter will tracking viewstate changes to update the
- * corresponding client-side properties.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TActiveControlAdapter extends TControlAdapter
-{
- /**
- * @var string base active control class name.
- */
- private $_activeControlType;
- /**
- * @var TBaseActiveControl base active control instance.
- */
- private $_baseActiveControl;
- /**
- * @var TCallbackPageStateTracker view state tracker.
- */
- private $_stateTracker;
-
- /**
- * Constructor.
- * @param IActiveControl active control to adapt.
- * @param string Base active control class name.
- */
- public function __construct(IActiveControl $control, $baseCallbackClass=null)
- {
- parent::__construct($control);
- $this->setBaseControlClass($baseCallbackClass);
- }
-
- /**
- * @param string base active control instance
- */
- protected function setBaseControlClass($type)
- {
- if($type===null)
- {
- if($this->getControl() instanceof ICallbackEventHandler)
- $this->_activeControlType = 'TBaseActiveCallbackControl';
- else
- $this->_activeControlType = 'TBaseActiveControl';
- }
- else
- $this->_activeControlType = $type;
- }
-
- /**
- * Publish the ajax script
- */
- public function onPreRender($param)
- {
- parent::onPreRender($param);
- }
-
- /**
- * Renders the callback client scripts.
- */
- public function render($writer)
- {
- $this->getPage()->getClientScript()->registerPradoScript('ajax');
- $this->renderCallbackClientScripts();
- if($this->_control->getVisible(false))
- {
- parent::render($writer);
- } else {
- $writer->write("<span id=\"".$this->_control->getClientID()."\" style=\"display:none\"></span>");
- }
- }
-
- /**
- * Register the callback clientscripts and sets the post loader IDs.
- */
- protected function renderCallbackClientScripts()
- {
- $cs = $this->getPage()->getClientScript();
- $key = 'Prado.CallbackRequest.addPostLoaders';
- if(!$cs->isEndScriptRegistered($key))
- {
- $data = $this->getPage()->getPostDataLoaders();
- if(count($data) > 0)
- {
- $options = TJavaScript::encode($data,false);
- $script = "Prado.CallbackRequest.addPostLoaders({$options});";
- $cs->registerEndScript($key, $script);
- }
- }
- }
-
- /**
- * @param TBaseActiveControl change base active control
- */
- public function setBaseActiveControl($control)
- {
- $this->_baseActiveControl=$control;
- }
-
- /**
- * @return TBaseActiveControl Common active control options.
- */
- public function getBaseActiveControl()
- {
- if($this->_baseActiveControl===null)
- {
- $type = $this->_activeControlType;
- $this->_baseActiveControl = new $type($this->getControl());
- }
- return $this->_baseActiveControl;
- }
-
- /**
- * @return boolean true if the viewstate needs to be tracked.
- */
- protected function getIsTrackingPageState()
- {
- if($this->getPage()->getIsCallback())
- {
- $target = $this->getPage()->getCallbackEventTarget();
- if($target instanceof ICallbackEventHandler)
- {
- $client = $target->getActiveControl()->getClientSide();
- return $client->getEnablePageStateUpdate();
- }
- }
- return false;
- }
-
- /**
- * Starts viewstate tracking if necessary after when controls has been loaded
- */
- public function onLoad($param)
- {
- if($this->getIsTrackingPageState())
- {
- $this->_stateTracker = new TCallbackPageStateTracker($this->getControl());
- $this->_stateTracker->trackChanges();
- }
- parent::onLoad($param);
- }
-
- /**
- * Saves additional persistent control state. Respond to viewstate changes
- * if necessary.
- */
- public function saveState()
- {
- if(($this->_stateTracker!==null)
- && $this->getControl()->getActiveControl()->canUpdateClientSide(true))
- {
- $this->_stateTracker->respondToChanges();
- }
- parent::saveState();
- }
-
- /**
- * @return TCallbackPageStateTracker state tracker.
- */
- public function getStateTracker()
- {
- return $this->_stateTracker;
- }
-}
-
-/**
- * TCallbackPageStateTracker class.
- *
- * Tracking changes to the page state during callback.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TCallbackPageStateTracker
-{
- /**
- * @var TMap new view state data
- */
- private $_states;
- /**
- * @var TMap old view state data
- */
- private $_existingState;
- /**
- * @var TControl the control tracked
- */
- private $_control;
- /**
- * @var object null object.
- */
- private $_nullObject;
-
- /**
- * Constructor. Add a set of default states to track.
- * @param TControl control to track.
- */
- public function __construct($control)
- {
- $this->_control = $control;
- $this->_existingState = new TMap;
- $this->_nullObject = new stdClass;
- $this->_states = new TMap;
- $this->addStatesToTrack();
- }
-
- /**
- * Add a list of view states to track. Each state is added
- * to the StatesToTrack property with the view state name as key.
- * The value should be an array with two enteries. The first entery
- * is the name of the class that will calculate the state differences.
- * The second entry is a php function/method callback that handles
- * the changes in the viewstate.
- */
- protected function addStatesToTrack()
- {
- $states = $this->getStatesToTrack();
- $states['Visible'] = array('TScalarDiff', array($this, 'updateVisible'));
- $states['Enabled'] = array('TScalarDiff', array($this, 'updateEnabled'));
- $states['Attributes'] = array('TMapCollectionDiff', array($this, 'updateAttributes'));
- $states['Style'] = array('TStyleDiff', array($this, 'updateStyle'));
- $states['TabIndex'] = array('TScalarDiff', array($this, 'updateTabIndex'));
- $states['ToolTip'] = array('TScalarDiff', array($this, 'updateToolTip'));
- $states['AccessKey'] = array('TScalarDiff', array($this, 'updateAccessKey'));
- }
-
- /**
- * @return TMap list of viewstates to track.
- */
- protected function getStatesToTrack()
- {
- return $this->_states;
- }
-
- /**
- * Start tracking view state changes. The clone function on objects are called
- * for those viewstate having an object as value.
- */
- public function trackChanges()
- {
- foreach($this->_states as $name => $value)
- {
- $obj = $this->_control->getViewState($name);
- $this->_existingState[$name] = is_object($obj) ? clone($obj) : $obj;
- }
- }
-
- /**
- * @return array list of viewstate and the changed data.
- */
- protected function getChanges()
- {
- $changes = array();
- foreach($this->_states as $name => $details)
- {
- $new = $this->_control->getViewState($name);
- $old = $this->_existingState[$name];
- if($new !== $old)
- {
- $diff = new $details[0]($new, $old, $this->_nullObject);
- if(($change = $diff->getDifference()) !== $this->_nullObject)
- $changes[] = array($details[1],array($change));
- }
- }
- return $changes;
- }
-
- /**
- * For each of the changes call the corresponding change handlers.
- */
- public function respondToChanges()
- {
- foreach($this->getChanges() as $change)
- call_user_func_array($change[0], $change[1]);
- }
-
- /**
- * @return TCallbackClientScript callback client scripting
- */
- protected function client()
- {
- return $this->_control->getPage()->getCallbackClient();
- }
-
- /**
- * Updates the tooltip.
- * @param string new tooltip
- */
- protected function updateToolTip($value)
- {
- $this->client()->setAttribute($this->_control, 'title', $value);
- }
-
- /**
- * Updates the tab index.
- * @param integer tab index
- */
- protected function updateTabIndex($value)
- {
- $this->client()->setAttribute($this->_control, 'tabindex', $value);
- }
-
- /**
- * Updates the modifier access key
- * @param string access key
- */
- protected function updateAccessKey($value)
- {
- $this->client()->setAttribute($this->_control, 'accesskey', $value);
- }
-
- /**
- * Hides or shows the control on the client-side. The control must be
- * already rendered on the client-side.
- * @param boolean true to show the control, false to hide.
- */
- protected function updateVisible($visible)
- {
- if($visible === false)
- $this->client()->replaceContent($this->_control,"<span id=\"".$this->_control->getClientID()."\" style=\"display:none\" ></span>");
- else
- $this->client()->replaceContent($this->_control,$this->_control);
- }
-
- /**
- * Enables or Disables the control on the client-side.
- * @param boolean true to enable the control, false to disable.
- */
- protected function updateEnabled($enable)
- {
- $this->client()->setAttribute($this->_control, 'disabled', $enable===false);
- }
-
- /**
- * Updates the CSS style on the control on the client-side.
- * @param array list of new CSS style declarations.
- */
- protected function updateStyle($style)
- {
- if($style['CssClass']!==null)
- $this->client()->setAttribute($this->_control, 'class', $style['CssClass']);
- if(count($style['Style']) > 0)
- $this->client()->setStyle($this->_control, $style['Style']);
- }
-
- /**
- * Updates/adds a list of attributes on the control.
- * @param array list of attribute name-value pairs.
- */
- protected function updateAttributes($attributes)
- {
- foreach($attributes as $name => $value)
- $this->client()->setAttribute($this->_control, $name, $value);
- }
-}
-
-/**
- * Calculates the viewstate changes during the request.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-abstract class TViewStateDiff
-{
- /**
- * @var mixed updated viewstate
- */
- protected $_new;
- /**
- * @var mixed viewstate value at the begining of the request.
- */
- protected $_old;
- /**
- * @var object null value.
- */
- protected $_null;
-
- /**
- * Constructor.
- * @param mixed updated viewstate value.
- * @param mixed viewstate value at the begining of the request.
- * @param object representing the null value.
- */
- public function __construct($new, $old, $null)
- {
- $this->_new = $new;
- $this->_old = $old;
- $this->_null = $null;
- }
-
- /**
- * @return mixed view state changes, nullObject if no difference.
- */
- public abstract function getDifference();
-}
-
-/**
- * TScalarDiff class.
- *
- * Calculate the changes to a scalar value.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TScalarDiff extends TViewStateDiff
-{
- /**
- * @return mixed update viewstate value.
- */
- public function getDifference()
- {
- if(gettype($this->_new) === gettype($this->_old)
- && $this->_new === $this->_old)
- return $this->_null;
- else
- return $this->_new;
- }
-}
-
-/**
- * TStyleDiff class.
- *
- * Calculates the changes to the Style properties.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TStyleDiff extends TViewStateDiff
-{
- /**
- * @param TStyle control style
- * @return array all the style properties combined.
- */
- protected function getCombinedStyle($obj)
- {
- if(!($obj instanceof TStyle))
- return array();
- $style = $obj->getStyleFields();
- $style = array_merge($style,$this->getStyleFromString($obj->getCustomStyle()));
- if($obj->hasFont())
- $style = array_merge($style, $this->getStyleFromString($obj->getFont()->toString()));
- return $style;
- }
-
- /**
- * @param string CSS custom style string.
- * @param array CSS style as name-value array.
- */
- protected function getStyleFromString($string)
- {
- $style = array();
- if(!is_string($string)) return $style;
-
- foreach(explode(';',$string) as $sub)
- {
- $arr=explode(':',$sub);
- if(isset($arr[1]) && trim($arr[0])!=='')
- $style[trim($arr[0])] = trim($arr[1]);
- }
- return $style;
- }
-
- /**
- * @return string changes to the CSS class name.
- */
- protected function getCssClassDiff()
- {
- if($this->_old===null)
- {
- return ($this->_new!==null) && $this->_new->hasCssClass()
- ? $this->_new->getCssClass() : null;
- }
- else
- {
- return $this->_old->getCssClass() !== $this->_new->getCssClass() ?
- $this->_new->getCssClass() : null;
- }
- }
-
- /**
- * @return array list of changes to the control style.
- */
- protected function getStyleDiff()
- {
- $diff = array_diff_assoc(
- $this->getCombinedStyle($this->_new),
- $this->getCombinedStyle($this->_old));
- return count($diff) > 0 ? $diff : null;
- }
-
- /**
- * @return array list of changes to the control style and CSS class name.
- */
- public function getDifference()
- {
- if($this->_new===null)
- return $this->_null;
- else
- {
- $css = $this->getCssClassDiff();
- $style = $this->getStyleDiff();
- if(($css!==null) || ($style!==null))
- return array('CssClass' => $css, 'Style' => $style);
- else
- $this->_null;
- }
- }
-}
-
-/**
- * TAttributesDiff class.
- *
- * Calculate the changes to attributes collection.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TMapCollectionDiff extends TViewStateDiff
-{
- /**
- * @return array updates to the attributes collection.
- */
- public function getDifference()
- {
- if($this->_old===null)
- {
- return ($this->_new!==null) ? $this->_new->toArray() : $this->_null;
- }
- else
- {
- $new = $this->_new->toArray();
- $old = $this->_old->toArray();
- $diff = array_diff_assoc($new, $old);
- return count($diff) > 0 ? $diff : $this->_null;
- }
- }
-}
-
+<?php
+/**
+ * TActiveControlAdapter and TCallbackPageStateTracker class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2012 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ */
+
+/*
+ * Load common active control options.
+ */
+Prado::using('System.Web.UI.ActiveControls.TBaseActiveControl');
+
+/**
+ * TActiveControlAdapter class.
+ *
+ * Customize the parent TControl class for active control classes.
+ * TActiveControlAdapter instantiates a common base active control class
+ * throught the {@link getBaseActiveControl BaseActiveControl} property.
+ * The type of BaseActiveControl can be provided in the second parameter in the
+ * constructor. Default is TBaseActiveControl or TBaseActiveCallbackControl if
+ * the control adapted implements ICallbackEventHandler.
+ *
+ * TActiveControlAdapter will tracking viewstate changes to update the
+ * corresponding client-side properties.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TActiveControlAdapter extends TControlAdapter
+{
+ /**
+ * @var string base active control class name.
+ */
+ private $_activeControlType;
+ /**
+ * @var TBaseActiveControl base active control instance.
+ */
+ private $_baseActiveControl;
+ /**
+ * @var TCallbackPageStateTracker view state tracker.
+ */
+ private $_stateTracker;
+
+ /**
+ * Constructor.
+ * @param IActiveControl active control to adapt.
+ * @param string Base active control class name.
+ */
+ public function __construct(IActiveControl $control, $baseCallbackClass=null)
+ {
+ parent::__construct($control);
+ $this->setBaseControlClass($baseCallbackClass);
+ }
+
+ /**
+ * @param string base active control instance
+ */
+ protected function setBaseControlClass($type)
+ {
+ if($type===null)
+ {
+ if($this->getControl() instanceof ICallbackEventHandler)
+ $this->_activeControlType = 'TBaseActiveCallbackControl';
+ else
+ $this->_activeControlType = 'TBaseActiveControl';
+ }
+ else
+ $this->_activeControlType = $type;
+ }
+
+ /**
+ * Publish the ajax script
+ */
+ public function onPreRender($param)
+ {
+ parent::onPreRender($param);
+ }
+
+ /**
+ * Renders the callback client scripts.
+ */
+ public function render($writer)
+ {
+ $this->getPage()->getClientScript()->registerPradoScript('ajax');
+ $this->renderCallbackClientScripts();
+ if($this->_control->getVisible(false))
+ {
+ parent::render($writer);
+ } else {
+ $writer->write("<span id=\"".$this->_control->getClientID()."\" style=\"display:none\"></span>");
+ }
+ }
+
+ /**
+ * Register the callback clientscripts and sets the post loader IDs.
+ */
+ protected function renderCallbackClientScripts()
+ {
+ $cs = $this->getPage()->getClientScript();
+ $key = 'Prado.CallbackRequest.addPostLoaders';
+ if(!$cs->isEndScriptRegistered($key))
+ {
+ $data = $this->getPage()->getPostDataLoaders();
+ if(count($data) > 0)
+ {
+ $options = TJavaScript::encode($data,false);
+ $script = "Prado.CallbackRequest.addPostLoaders({$options});";
+ $cs->registerEndScript($key, $script);
+ }
+ }
+ }
+
+ /**
+ * @param TBaseActiveControl change base active control
+ */
+ public function setBaseActiveControl($control)
+ {
+ $this->_baseActiveControl=$control;
+ }
+
+ /**
+ * @return TBaseActiveControl Common active control options.
+ */
+ public function getBaseActiveControl()
+ {
+ if($this->_baseActiveControl===null)
+ {
+ $type = $this->_activeControlType;
+ $this->_baseActiveControl = new $type($this->getControl());
+ }
+ return $this->_baseActiveControl;
+ }
+
+ /**
+ * @return boolean true if the viewstate needs to be tracked.
+ */
+ protected function getIsTrackingPageState()
+ {
+ if($this->getPage()->getIsCallback())
+ {
+ $target = $this->getPage()->getCallbackEventTarget();
+ if($target instanceof ICallbackEventHandler)
+ {
+ $client = $target->getActiveControl()->getClientSide();
+ return $client->getEnablePageStateUpdate();
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Starts viewstate tracking if necessary after when controls has been loaded
+ */
+ public function onLoad($param)
+ {
+ if($this->getIsTrackingPageState())
+ {
+ $this->_stateTracker = new TCallbackPageStateTracker($this->getControl());
+ $this->_stateTracker->trackChanges();
+ }
+ parent::onLoad($param);
+ }
+
+ /**
+ * Saves additional persistent control state. Respond to viewstate changes
+ * if necessary.
+ */
+ public function saveState()
+ {
+ if(($this->_stateTracker!==null)
+ && $this->getControl()->getActiveControl()->canUpdateClientSide(true))
+ {
+ $this->_stateTracker->respondToChanges();
+ }
+ parent::saveState();
+ }
+
+ /**
+ * @return TCallbackPageStateTracker state tracker.
+ */
+ public function getStateTracker()
+ {
+ return $this->_stateTracker;
+ }
+}
+
+/**
+ * TCallbackPageStateTracker class.
+ *
+ * Tracking changes to the page state during callback.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TCallbackPageStateTracker
+{
+ /**
+ * @var TMap new view state data
+ */
+ private $_states;
+ /**
+ * @var TMap old view state data
+ */
+ private $_existingState;
+ /**
+ * @var TControl the control tracked
+ */
+ private $_control;
+ /**
+ * @var object null object.
+ */
+ private $_nullObject;
+
+ /**
+ * Constructor. Add a set of default states to track.
+ * @param TControl control to track.
+ */
+ public function __construct($control)
+ {
+ $this->_control = $control;
+ $this->_existingState = new TMap;
+ $this->_nullObject = new stdClass;
+ $this->_states = new TMap;
+ $this->addStatesToTrack();
+ }
+
+ /**
+ * Add a list of view states to track. Each state is added
+ * to the StatesToTrack property with the view state name as key.
+ * The value should be an array with two enteries. The first entery
+ * is the name of the class that will calculate the state differences.
+ * The second entry is a php function/method callback that handles
+ * the changes in the viewstate.
+ */
+ protected function addStatesToTrack()
+ {
+ $states = $this->getStatesToTrack();
+ $states['Visible'] = array('TScalarDiff', array($this, 'updateVisible'));
+ $states['Enabled'] = array('TScalarDiff', array($this, 'updateEnabled'));
+ $states['Attributes'] = array('TMapCollectionDiff', array($this, 'updateAttributes'));
+ $states['Style'] = array('TStyleDiff', array($this, 'updateStyle'));
+ $states['TabIndex'] = array('TScalarDiff', array($this, 'updateTabIndex'));
+ $states['ToolTip'] = array('TScalarDiff', array($this, 'updateToolTip'));
+ $states['AccessKey'] = array('TScalarDiff', array($this, 'updateAccessKey'));
+ }
+
+ /**
+ * @return TMap list of viewstates to track.
+ */
+ protected function getStatesToTrack()
+ {
+ return $this->_states;
+ }
+
+ /**
+ * Start tracking view state changes. The clone function on objects are called
+ * for those viewstate having an object as value.
+ */
+ public function trackChanges()
+ {
+ foreach($this->_states as $name => $value)
+ {
+ $obj = $this->_control->getViewState($name);
+ $this->_existingState[$name] = is_object($obj) ? clone($obj) : $obj;
+ }
+ }
+
+ /**
+ * @return array list of viewstate and the changed data.
+ */
+ protected function getChanges()
+ {
+ $changes = array();
+ foreach($this->_states as $name => $details)
+ {
+ $new = $this->_control->getViewState($name);
+ $old = $this->_existingState[$name];
+ if($new !== $old)
+ {
+ $diff = new $details[0]($new, $old, $this->_nullObject);
+ if(($change = $diff->getDifference()) !== $this->_nullObject)
+ $changes[] = array($details[1],array($change));
+ }
+ }
+ return $changes;
+ }
+
+ /**
+ * For each of the changes call the corresponding change handlers.
+ */
+ public function respondToChanges()
+ {
+ foreach($this->getChanges() as $change)
+ call_user_func_array($change[0], $change[1]);
+ }
+
+ /**
+ * @return TCallbackClientScript callback client scripting
+ */
+ protected function client()
+ {
+ return $this->_control->getPage()->getCallbackClient();
+ }
+
+ /**
+ * Updates the tooltip.
+ * @param string new tooltip
+ */
+ protected function updateToolTip($value)
+ {
+ $this->client()->setAttribute($this->_control, 'title', $value);
+ }
+
+ /**
+ * Updates the tab index.
+ * @param integer tab index
+ */
+ protected function updateTabIndex($value)
+ {
+ $this->client()->setAttribute($this->_control, 'tabindex', $value);
+ }
+
+ /**
+ * Updates the modifier access key
+ * @param string access key
+ */
+ protected function updateAccessKey($value)
+ {
+ $this->client()->setAttribute($this->_control, 'accesskey', $value);
+ }
+
+ /**
+ * Hides or shows the control on the client-side. The control must be
+ * already rendered on the client-side.
+ * @param boolean true to show the control, false to hide.
+ */
+ protected function updateVisible($visible)
+ {
+ if($visible === false)
+ $this->client()->replaceContent($this->_control,"<span id=\"".$this->_control->getClientID()."\" style=\"display:none\" ></span>");
+ else
+ $this->client()->replaceContent($this->_control,$this->_control);
+ }
+
+ /**
+ * Enables or Disables the control on the client-side.
+ * @param boolean true to enable the control, false to disable.
+ */
+ protected function updateEnabled($enable)
+ {
+ $this->client()->setAttribute($this->_control, 'disabled', $enable===false);
+ }
+
+ /**
+ * Updates the CSS style on the control on the client-side.
+ * @param array list of new CSS style declarations.
+ */
+ protected function updateStyle($style)
+ {
+ if($style['CssClass']!==null)
+ $this->client()->setAttribute($this->_control, 'class', $style['CssClass']);
+ if(count($style['Style']) > 0)
+ $this->client()->setStyle($this->_control, $style['Style']);
+ }
+
+ /**
+ * Updates/adds a list of attributes on the control.
+ * @param array list of attribute name-value pairs.
+ */
+ protected function updateAttributes($attributes)
+ {
+ foreach($attributes as $name => $value)
+ $this->client()->setAttribute($this->_control, $name, $value);
+ }
+}
+
+/**
+ * Calculates the viewstate changes during the request.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+abstract class TViewStateDiff
+{
+ /**
+ * @var mixed updated viewstate
+ */
+ protected $_new;
+ /**
+ * @var mixed viewstate value at the begining of the request.
+ */
+ protected $_old;
+ /**
+ * @var object null value.
+ */
+ protected $_null;
+
+ /**
+ * Constructor.
+ * @param mixed updated viewstate value.
+ * @param mixed viewstate value at the begining of the request.
+ * @param object representing the null value.
+ */
+ public function __construct($new, $old, $null)
+ {
+ $this->_new = $new;
+ $this->_old = $old;
+ $this->_null = $null;
+ }
+
+ /**
+ * @return mixed view state changes, nullObject if no difference.
+ */
+ public abstract function getDifference();
+}
+
+/**
+ * TScalarDiff class.
+ *
+ * Calculate the changes to a scalar value.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TScalarDiff extends TViewStateDiff
+{
+ /**
+ * @return mixed update viewstate value.
+ */
+ public function getDifference()
+ {
+ if(gettype($this->_new) === gettype($this->_old)
+ && $this->_new === $this->_old)
+ return $this->_null;
+ else
+ return $this->_new;
+ }
+}
+
+/**
+ * TStyleDiff class.
+ *
+ * Calculates the changes to the Style properties.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TStyleDiff extends TViewStateDiff
+{
+ /**
+ * @param TStyle control style
+ * @return array all the style properties combined.
+ */
+ protected function getCombinedStyle($obj)
+ {
+ if(!($obj instanceof TStyle))
+ return array();
+ $style = $obj->getStyleFields();
+ $style = array_merge($style,$this->getStyleFromString($obj->getCustomStyle()));
+ if($obj->hasFont())
+ $style = array_merge($style, $this->getStyleFromString($obj->getFont()->toString()));
+ return $style;
+ }
+
+ /**
+ * @param string CSS custom style string.
+ * @param array CSS style as name-value array.
+ */
+ protected function getStyleFromString($string)
+ {
+ $style = array();
+ if(!is_string($string)) return $style;
+
+ foreach(explode(';',$string) as $sub)
+ {
+ $arr=explode(':',$sub);
+ if(isset($arr[1]) && trim($arr[0])!=='')
+ $style[trim($arr[0])] = trim($arr[1]);
+ }
+ return $style;
+ }
+
+ /**
+ * @return string changes to the CSS class name.
+ */
+ protected function getCssClassDiff()
+ {
+ if($this->_old===null)
+ {
+ return ($this->_new!==null) && $this->_new->hasCssClass()
+ ? $this->_new->getCssClass() : null;
+ }
+ else
+ {
+ return $this->_old->getCssClass() !== $this->_new->getCssClass() ?
+ $this->_new->getCssClass() : null;
+ }
+ }
+
+ /**
+ * @return array list of changes to the control style.
+ */
+ protected function getStyleDiff()
+ {
+ $diff = array_diff_assoc(
+ $this->getCombinedStyle($this->_new),
+ $this->getCombinedStyle($this->_old));
+ return count($diff) > 0 ? $diff : null;
+ }
+
+ /**
+ * @return array list of changes to the control style and CSS class name.
+ */
+ public function getDifference()
+ {
+ if($this->_new===null)
+ return $this->_null;
+ else
+ {
+ $css = $this->getCssClassDiff();
+ $style = $this->getStyleDiff();
+ if(($css!==null) || ($style!==null))
+ return array('CssClass' => $css, 'Style' => $style);
+ else
+ $this->_null;
+ }
+ }
+}
+
+/**
+ * TAttributesDiff class.
+ *
+ * Calculate the changes to attributes collection.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TMapCollectionDiff extends TViewStateDiff
+{
+ /**
+ * @return array updates to the attributes collection.
+ */
+ public function getDifference()
+ {
+ if($this->_old===null)
+ {
+ return ($this->_new!==null) ? $this->_new->toArray() : $this->_null;
+ }
+ else
+ {
+ $new = $this->_new->toArray();
+ $old = $this->_old->toArray();
+ $diff = array_diff_assoc($new, $old);
+ return count($diff) > 0 ? $diff : $this->_null;
+ }
+ }
+}
+