diff options
Diffstat (limited to 'framework/Web/UI/WebControls/TListControl.php')
| -rw-r--r-- | framework/Web/UI/WebControls/TListControl.php | 487 |
1 files changed, 487 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TListControl.php b/framework/Web/UI/WebControls/TListControl.php new file mode 100644 index 00000000..c965ddb0 --- /dev/null +++ b/framework/Web/UI/WebControls/TListControl.php @@ -0,0 +1,487 @@ +<?php
+
+abstract class TListControl extends TDataBoundControl
+{
+ private $_items=null;
+
+ /**
+ * @return string tag name of the textbox
+ */
+ protected function getTagName()
+ {
+ return 'select';
+ }
+
+ /**
+ * Adds attributes to renderer.
+ * @param THtmlWriter the renderer
+ */
+ protected function addAttributesToRender($writer)
+ {
+ $page=$this->getPage();
+ $page->ensureRenderInForm($this);
+ if($this->getIsMultiSelect())
+ $writer->addAttribute('multiple','multiple');
+ if($this->getAutoPostBack() && $page->getClientSupportsJavaScript())
+ {
+ $options = $this->getAutoPostBackOptions();
+ $scripts = $this->getPage()->getClientScript();
+ $postback = $scripts->getPostBackEventReference($this,'',$options,false);
+ $scripts->registerClientEvent($this, "change", $postback);
+ }
+ if($this->getEnabled(true) && !$this->getEnabled())
+ $writer->addAttribute('disabled','disabled');
+ parent::addAttributesToRender($writer);
+ }
+
+ protected function getAutoPostBackOptions()
+ {
+ $option=new TPostBackOptions();
+ $group = $this->getValidationGroup();
+ $hasValidators = $this->getPage()->getValidators($group)->getCount()>0;
+ if($this->getCausesValidation() && $hasValidators)
+ {
+ $option->setPerformValidation(true);
+ $option->setValidationGroup($group);
+ }
+ $option->setAutoPostBack(true);
+ return $option;
+ }
+
+ public function addParsedObject($object)
+ {
+ if($object instanceof TListItem)
+ $this->getItems()->add($object);
+ }
+
+ protected function performDataBinding($data)
+ {
+ // TODO;
+ }
+
+ protected function onSaveState($param)
+ {
+ if($this->_items)
+ $this->setViewState('Items',$this->_items->saveState(),null);
+ else
+ $this->clearViewState('Items');
+ }
+
+ protected function onLoadState($param)
+ {
+ $this->_items=new TListItemCollection;
+ $this->_items->loadState($this->getViewState('Items',null));
+ }
+
+ protected function getIsMultiSelect()
+ {
+ return false;
+ }
+
+ public function getAppendDataBoundItems()
+ {
+ return $this->getViewState('AppendDataBoundItems',false);
+ }
+
+ public function setAppendDataBoundItems($value)
+ {
+ $this->setViewState('AppendDataBoundItems',TPropertyValue::ensureBoolean($value),false);
+ }
+
+ /**
+ * @return boolean a value indicating whether an automatic postback to the server
+ * will occur whenever the user modifies the text in the TTextBox control and
+ * then tabs out of the component. Defaults to false.
+ */
+ public function getAutoPostBack()
+ {
+ return $this->getViewState('AutoPostBack',false);
+ }
+
+ /**
+ * Sets the value indicating if postback automatically.
+ * An automatic postback to the server will occur whenever the user
+ * modifies the text in the TTextBox control and then tabs out of the component.
+ * @param boolean the value indicating if postback automatically
+ */
+ public function setAutoPostBack($value)
+ {
+ $this->setViewState('AutoPostBack',TPropertyValue::ensureBoolean($value),false);
+ }
+
+ /**
+ * @return boolean whether postback event trigger by this text box will cause input validation, default is true.
+ */
+ public function getCausesValidation()
+ {
+ return $this->getViewState('CausesValidation',true);
+ }
+
+ /**
+ * Sets the value indicating whether postback event trigger by this text box will cause input validation.
+ * @param boolean whether postback event trigger by this button will cause input validation.
+ */
+ public function setCausesValidation($value)
+ {
+ $this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true);
+ }
+
+ /**
+ * @return string the field of the data source that provides the text content of the list items.
+ */
+ public function getDataTextField()
+ {
+ return $this->getViewState('DataTextField','');
+ }
+
+ /**
+ * @param string the field of the data source that provides the text content of the list items.
+ */
+ public function setDataTextField($value)
+ {
+ $this->setViewState('DataTextField',$value,'');
+ }
+
+ /**
+ * @return string the formatting string used to control how data bound to the list control is displayed.
+ */
+ public function getDataTextFormatString()
+ {
+ return $this->getViewState('DataTextFormatString','');
+ }
+
+ /**
+ * @param string the formatting string used to control how data bound to the list control is displayed.
+ */
+ public function setDataTextFormatString($value)
+ {
+ $this->setViewState('DataTextFormatString',$value,'');
+ }
+
+ /**
+ * @return string the field of the data source that provides the value of each list item.
+ */
+ public function getDataValueField()
+ {
+ return $this->getViewState('DataValueField','');
+ }
+
+ /**
+ * @param string the field of the data source that provides the value of each list item.
+ */
+ public function setDataValueField($value)
+ {
+ $this->setViewState('DataValueField',$value,'');
+ }
+
+ public function getItems()
+ {
+ if(!$this->_items)
+ $this->_items=new TListItemCollection;
+ return $this->_items;
+ }
+
+ /**
+ * @return integer the index of the item being selected, -1 if no selection
+ */
+ public function getSelectedIndex()
+ {
+ if($this->_items)
+ {
+ $n=$this->_items->getCount();
+ for($i=0;$i<$n;++$i)
+ if($this->_items->itemAt($i)->getSelected())
+ return $i;
+ }
+ return -1;
+ }
+
+ /**
+ * @param integer the index of the item to be selected
+ */
+ public function setSelectedIndex($index)
+ {
+ $index=TPropertyValue::ensureInteger($index);
+ if($this->_items)
+ {
+ $this->_items->clearSelection();
+ if($index>=0 && $index<$this->_items->getCount())
+ $this->_items->itemAt($index)->setSelected(true);
+ }
+ }
+
+ protected function getSelectedIndices()
+ {
+ $selections=array();
+ if($this->_items)
+ {
+ $n=$this->_items->getCount();
+ for($i=0;$i<$n;++$i)
+ if($this->_items->itemAt($i)->getSelected())
+ $selections[]=$i;
+ }
+ return $selections;
+ }
+
+ /**
+ * @return TListItem|null the selected item with the lowest cardinal index, null if no selection.
+ */
+ public function getSelectedItem()
+ {
+ if(($index=$this->getSelectedIndex())>=0)
+ return $this->_items->itemAt($index);
+ else
+ return null;
+ }
+
+ /**
+ * @return string the value of the selected item with the lowest cardinal index, empty if no selection
+ */
+ public function getSelectedValue()
+ {
+ $index=$this->getSelectedIndex();
+ return $index>=0?$this->getItems()->itemAt($index)->getValue():'';
+ }
+
+ /**
+ * Sets selection by item value.
+ * @param string the value of the item to be selected.
+ */
+ public function setSelectedValue($value)
+ {
+ if($this->_items)
+ {
+ if($value===null)
+ $this->clearSelection();
+ else if(($item=$this->_items->findItemByValue($value))!==null)
+ {
+ $this->clearSelection();
+ $item->setSelected(true);
+ }
+ }
+ }
+
+ public function clearSelection()
+ {
+ if($this->_items)
+ {
+ foreach($this->_items as $item)
+ $item->setSelected(false);
+ }
+ }
+
+ /**
+ * @return string the text content of the TTextBox control.
+ */
+ public function getText()
+ {
+ return $this->getSelectedValue();
+ }
+
+ /**
+ * Sets the text content of the TTextBox control.
+ * @param string the text content
+ */
+ public function setText($value)
+ {
+ $this->setSelectedValue($value);
+ }
+
+ /**
+ * @return string the group of validators which the text box causes validation upon postback
+ */
+ public function getValidationGroup()
+ {
+ return $this->getViewState('ValidationGroup','');
+ }
+
+ /**
+ * @param string the group of validators which the text box causes validation upon postback
+ */
+ public function setValidationGroup($value)
+ {
+ $this->setViewState('ValidationGroup',$value,'');
+ }
+
+ public function onSelectedIndexChanged($param)
+ {
+ $this->raiseEvent('SelectedIndexChanged',$this,$param);
+ }
+
+ public function onTextChanged($param)
+ {
+ $this->raiseEvent('TextChanged',$this,$param);
+ }
+
+ protected function renderContents($writer)
+ {
+ if($this->_items)
+ {
+ $writer->writeLine();
+ foreach($this->_items as $item)
+ {
+ if($item->getEnabled())
+ {
+ $str='<option';
+ if($item->getSelected())
+ $str.=' selected="selected"';
+ $str.=' value="'.THttpUtility::htmlEncode($item->getValue()).'"';
+ $str.='>'.THttpUtility::htmlEncode($item->getText()).'</option>';
+ $writer->writeLine($str);
+ }
+ }
+ }
+ }
+}
+
+
+
+
+class TListItemCollection extends TList
+{
+ private $_items=null;
+
+ public function add($item)
+ {
+ if(is_string($item))
+ parent::add(new TListItem($item));
+ else if($item instanceof TListItem)
+ parent::add($item);
+ else
+ throw new TInvalidDataTypeException('listitemcollection_item_invalid');
+ }
+
+ public function addAt($index,$item)
+ {
+ if(is_string($item))
+ parent::addAt($index,new TListItem($item));
+ else if($item instanceof TListItem)
+ parent::addAt($index,$item);
+ else
+ throw new TInvalidDataTypeException('listitemcollection_item_invalid');
+ }
+
+ public function findIndexByValue($value,$includeDisabled=true)
+ {
+ $value=TPropertyValue::ensureString($value);
+ $index=0;
+ foreach($this as $item)
+ {
+ if($item->getValue()===$value && ($includeDisabled || $item->getEnabled()))
+ return $index;
+ $index++;
+ }
+ return -1;
+ }
+
+ public function findIndexByText($text,$includeDisabled=true)
+ {
+ $text=TPropertyValue::ensureString($text);
+ $index=0;
+ foreach($this as $item)
+ {
+ if($item->getText()===$text && ($includeDisabled || $item->getEnabled()))
+ return $index;
+ $index++;
+ }
+ return -1;
+ }
+
+ public function findItemByValue($value,$includeDisabled=true)
+ {
+ if(($index=$this->findIndexByValue($value,$includeDisabled))>=0)
+ return $this->itemAt($index);
+ else
+ return null;
+ }
+
+ public function findItemByText($text,$includeDisabled=true)
+ {
+ if(($index=$this->findIndexByText($text,$includeDisabled))>=0)
+ return $this->itemAt($index);
+ else
+ return null;
+ }
+
+ public function loadState($state)
+ {
+ $this->clear();
+ if($state!==null)
+ {
+ foreach($state as $item)
+ $this->add(new TListItem($item[0],$item[1],$item[2],$item[3]));
+ }
+ }
+
+ public function saveState()
+ {
+ if($this->getCount()>0)
+ {
+ $state=array();
+ foreach($this as $item)
+ $state[]=array($item->getText(),$item->getValue(),$item->getEnabled(),$item->getSelected());
+ return $state;
+ }
+ else
+ return null;
+ }
+}
+
+class TListItem extends TComponent
+{
+ private $_attributes=null;
+ private $_text;
+ private $_value;
+ private $_enabled;
+ private $_selected;
+
+ public function __construct($text='',$value='',$enabled=true,$selected=false)
+ {
+ $this->setText($text);
+ $this->setValue($value);
+ $this->setEnabled($enabled);
+ $this->setSelected($selected);
+ }
+
+ public function getEnabled()
+ {
+ return $this->_enabled;
+ }
+
+ public function setEnabled($value)
+ {
+ $this->_enabled=TPropertyValue::ensureBoolean($value);
+ }
+
+ public function getSelected()
+ {
+ return $this->_selected;
+ }
+
+ public function setSelected($value)
+ {
+ $this->_selected=TPropertyValue::ensureBoolean($value);
+ }
+
+ public function getText()
+ {
+ return $this->_text===''?$this->_value:$this->_text;
+ }
+
+ public function setText($value)
+ {
+ $this->_text=TPropertyValue::ensureString($value);
+ }
+
+ public function getValue()
+ {
+ return $this->_value===''?$this->_text:$this->_value;
+ }
+
+ public function setValue($value)
+ {
+ $this->_value=TPropertyValue::ensureString($value);
+ }
+}
+
+?>
\ No newline at end of file |