and Qiang Xue * @link http://www.pradosoft.com/ * @copyright Copyright © 2005-2008 PradoSoft * @license http://www.pradosoft.com/license/ * @version $Id$ * @package System.Web.UI.WebControls * @since 3.1.1 */ /** * Class TKeyboard. * * TKeyboard displays a virtual keyboard that users can click on to enter input in * an associated text box. It helps to reduce the keyboard recording hacking. * * To use TKeyboard, write a template like following: * * * * * * A TKeyboard control is associated with a {@link TTextBox} control by specifying {@link setForControl ForControl} * to be the ID of that control. When the textbox is in focus, a virtual keyboard will pop up; and when * the text box is losing focus, the keyboard will hide automatically. Set {@link setAutoHide AutoHide} to * false to keep the keyboard showing all the time. * * The appearance of the keyboard can also be changed by specifying a customized CSS file via * {@link setCssUrl CssUrl}. By default, the CSS class name for the keyboard is 'Keyboard'. This may * also be changed by specifying {@link setKeyboardCssClass KeyboardCssClass}. * * @author Sergey Morkovkin and Qiang Xue * @version $Id$ * @since 3.1.1 */ class TKeyboard extends TWebControl { /** * @return string the ID path of the {@link TTextBox} control */ public function getForControl() { return $this->getViewState('ForControl',''); } /** * Sets the ID path of the {@link TTextBox} control. * The ID path is the dot-connected IDs of the controls reaching from * the keyboard's naming container to the target control. * @param string the ID path */ public function setForControl($value) { $this->setViewState('ForControl', TPropertyValue::ensureString($value)); } /** * @return boolean whether the keyboard should be hidden when the textbox is not in focus. Defaults to true. */ public function getAutoHide() { return $this->getViewState('AutoHide', true); } /** * @param boolean whether the keyboard should be hidden when the textbox is not in focus. */ public function setAutoHide($value) { $this->setViewState('AutoHide', TPropertyValue::ensureBoolean($value), true); } /** * @return string the CSS class name for the keyboard
element. Defaults to 'Keyboard'. */ public function getKeyboardCssClass() { return $this->getViewState('KeyboardCssClass', 'Keyboard'); } /** * Sets a value indicating the CSS class name for the keyboard
element. * Note, if you change this property, make sure you also supply a customized CSS file * by specifying {@link setCssUrl CssUrl} which uses the new CSS class name for styling. * @param string the CSS class name for the keyboard
element. */ public function setKeyboardCssClass($value) { $this->setViewState('KeyboardCssClass', $value, 'Keyboard'); } /** * @return string the URL for the CSS file to customize the appearance of the keyboard. */ public function getCssUrl() { return $this->getViewState('CssUrl', ''); } /** * @param string the URL for the CSS file to customize the appearance of the keyboard. */ public function setCssUrl($value) { $this->setViewState('CssUrl', $value, ''); } /** * Registers CSS and JS. * This method is invoked right before the control rendering, if the control is visible. * @param mixed event parameter */ public function onPreRender($param) { parent::onPreRender($param); if($this->getPage()->getClientSupportsJavaScript()) { $this->registerStyleSheet(); $this->registerClientScript(); } } /** * Adds attribute name-value pairs to renderer. * This method overrides the parent implementation with additional TKeyboard specific attributes. * @param THtmlWriter the writer used for the rendering purpose */ protected function addAttributesToRender($writer) { parent::addAttributesToRender($writer); if($this->getPage()->getClientSupportsJavaScript()) $writer->addAttribute('id',$this->getClientID()); } /** * Registers the CSS relevant to the TKeyboard. * It will register the CSS file specified by {@link getCssUrl CssUrl}. * If that is not set, it will use the default CSS. */ protected function registerStyleSheet() { if(($url=$this->getCssUrl())==='') $url=$this->getApplication()->getAssetManager()->publishFilePath(dirname(__FILE__).DIRECTORY_SEPARATOR.'assets'.DIRECTORY_SEPARATOR.'keyboard.css'); $this->getPage()->getClientScript()->registerStyleSheetFile($url,$url); } /** * Registers the relevant JavaScript. */ protected function registerClientScript() { $options=TJavaScript::encode($this->getClientOptions()); $className=$this->getClientClassName(); $cs=$this->getPage()->getClientScript(); $cs->registerPradoScript('keyboard'); $cs->registerEndScript('prado:'.$this->getClientID(), "new $className($options);"); } /** * @return string the Javascript class name for this control */ protected function getClientClassName() { return 'Prado.WebUI.TKeyboard'; } /** * @return array the JavaScript options for this control */ protected function getClientOptions() { if(($forControl=$this->getForControl())==='') throw new TConfigurationException('keyboard_forcontrol_required'); if(($target=$this->findControl($forControl))===null) throw new TConfigurationException('keyboard_forcontrol_invalid',$forControl); $options['ID'] = $this->getClientID(); $options['ForControl'] = $target->getClientID(); $options['AutoHide'] = $this->getAutoHide(); $options['CssClass'] = $this->getKeyboardCssClass(); return $options; } } ?>