* @version 0.0.0 * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software * @license GNU GPL 3.0 or any newer version * @link http://www.ship-simu.org * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ class WebFormHelper extends BaseWebHelper implements HelpableTemplate { /** * Wether the form tag is opened (keep at false or else your forms will * never work!) */ private $formOpened = false; /** * Name of the form */ private $formName = ""; /** * Wether the group is opened or not */ private $groupOpened = false; /** * Wether the sub group is opened or not */ private $subGroupOpened = false; /** * Name of the group */ private $groupName = ""; /** * Name of the sub group */ private $subGroupName = ""; /** * Wether form tag is enabled (default: true) */ private $formEnabled = true; // Class Constants const EXCEPTION_FORM_NAME_INVALID = 0x120; const EXCEPTION_CLOSED_FORM = 0x121; const EXCEPTION_OPENED_FORM = 0x122; const EXCEPTION_UNEXPECTED_CLOSED_GROUP = 0x123; /** * Protected constructor * * @return void */ protected function __construct () { // Call parent constructor parent::__construct(__CLASS__); // Set part description $this->setObjectDescription("Helper class for HTML forms"); // Create unique ID number $this->generateUniqueId(); } /** * Creates the helper class with the given template engine instance and form name * * @param $templateInstance An instance of a valid template engine * @param $formName Name of the form * @param $formId Value for "id" attribute (default: $formName) * @param $withForm Wether include the form tag * @return $helperInstance A preparedf instance of this helper */ public final static function createWebFormHelper (CompileableTemplate $templateInstance, $formName, $formId = false, $withForm = true) { // Get new instance $helperInstance = new WebFormHelper(); // Set template instance $helperInstance->setTemplateInstance($templateInstance); // Is the form id not set? if ($formId === false) { // Use form id from form name $formId = $formName; } // END - if // Set form name $helperInstance->setFormName($formName); // A form-less field may say "false" here... if ($withForm === true) { // Create the form $helperInstance->addFormTag($formName, $formId); } else { // Disable form $helperInstance->enableForm(false); } // Return the prepared instance return $helperInstance; } /** * Add the form tag or close it an already opened form tag * * @param $formName Name of the form (default: false) * @param $formId Id of the form (attribute "id"; default: false) * @return void * @throws InvalidFormNameException If the form name is invalid (=false) * @todo Add some unique PIN here to bypass problems with some browser and/or extensions */ public function addFormTag ($formName = false, $formId = false) { // When the form is not yet opened at least form name must be valid if (($this->formOpened === false) && ($formName === false)) { // Thrown an exception throw new InvalidFormNameException ($this, self::EXCEPTION_FORM_NAME_INVALID); } // END - if // Close the form is default $formContent = ""; // Check wether we shall open or close the form if (($this->formOpened === false) && ($this->formEnabled === true)) { // Add HTML code $formContent = sprintf("
getConfigInstance()->readConfig('base_url'), $this->getConfigInstance()->readConfig('form_action'), $this->getConfigInstance()->readConfig('form_method'), $this->getConfigInstance()->readConfig('form_target') ); // Add form id as well $formContent .= sprintf(" id=\"%s_form\"", $formId ); // Add close bracket $formContent .= ">"; // Open the form and remeber the form name $this->formOpened = true; } else { // Add the hidden field required to identify safely this form $this->addInputHiddenField('form', $this->getFormName()); // Is a group open? if ($this->groupOpened === true) { // Then automatically close it here $this->addFormGroup(); } // END - if // Simply close it $this->formOpened = false; } // Add it to the content $this->addContent($formContent); } /** * Add a text input tag to the form or throw an exception if it is not yet * opened. The field's name will be set as id. * * @param $fieldName Input field name * @param $fieldValue Input default value (default: empty) * @return void * @throws FormClosedException If the form is not yet opened */ public function addInputTextField ($fieldName, $fieldValue = "") { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, $fieldName), self::EXCEPTION_CLOSED_FORM); } // END - if // Generate the content $inputContent = sprintf("", $fieldName, $fieldName, $fieldValue ); // And add it maybe with a "li" tag $this->addContent($inputContent); } /** * Add a text input tag to the form with pre-loaded default value * * @param $fieldName Input field name * @return void */ public function addInputTextFieldWithDefault ($fieldName) { // Get the value from instance $fieldValue = $this->getField($fieldName); //* DEBUG: */ echo __METHOD__.":".$fieldName."=".$fieldValue."
\n"; // Add the text field $this->addInputTextField($fieldName, $fieldValue); } /** * Add a password input tag to the form or throw an exception if it is not * yet opened. The field's name will be set as id. * * @param $fieldName Input field name * @param $fieldValue Input default value (default: empty) * @return void * @throws FormClosedException If the form is not yet opened */ public function addInputPasswordField ($fieldName, $fieldValue = "") { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, $fieldName), self::EXCEPTION_CLOSED_FORM); } // END - if // Generate the content $inputContent = sprintf("", $fieldName, $fieldName, $fieldValue ); // And add it $this->addContent($inputContent); } /** * Add a hidden input tag to the form or throw an exception if it is not * yet opened. The field's name will be set as id. * * @param $fieldName Input field name * @param $fieldValue Input default value (default: empty) * @return void * @throws FormClosedException If the form is not yet opened */ public function addInputHiddenField ($fieldName, $fieldValue = "") { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, $fieldName), self::EXCEPTION_CLOSED_FORM); } // END - if // Generate the content $inputContent = sprintf("", $fieldName, $fieldValue ); // And add it $this->addContent($inputContent); } /** * Add a hidden input tag to the form with pre-loaded default value * * @param $fieldName Input field name * @return void */ public function addInputHiddenFieldWithDefault ($fieldName) { // Get the value from instance $fieldValue = $this->getField($fieldName); //* DEBUG: */ echo __METHOD__.":".$fieldName."=".$fieldValue."
\n"; // Add the text field $this->addInputHiddenField($fieldName, $fieldValue); } /** * Add a hidden input tag to the form with configuration value * * @param $fieldName Input field name * @param $prefix Prefix for configuration without trailing _ * @return void */ public function addInputHiddenConfiguredField ($fieldName, $prefix) { // Get the value from instance $fieldValue = $this->getConfigInstance()->readConfig("{$prefix}_{$fieldName}"); //* DEBUG: */ echo __METHOD__.":".$fieldName."=".$fieldValue."
\n"; // Add the text field $this->addInputHiddenField($fieldName, $fieldValue); } /** * Add a checkbox input tag to the form or throw an exception if it is not * yet opened. The field's name will be set as id. * * @param $fieldName Input field name * @param $fieldChecked Wether the field is checked (defaut: checked) * @return void * @throws FormClosedException If the form is not yet opened */ public function addInputCheckboxField ($fieldName, $fieldChecked = true) { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, $fieldName), self::EXCEPTION_CLOSED_FORM); } // END - if // Set wether the check box is checked... $checked = " checked=\"checked\""; if ($fieldChecked === false) $checked = " "; // Generate the content $inputContent = sprintf("", $fieldName, $fieldName, $checked ); // And add it $this->addContent($inputContent); } /** * Add a reset input tag to the form or throw an exception if it is not * yet opened. The field's name will be set as id. * * @param $buttonText Text displayed on the button * @return void * @throws FormClosedException If the form is not yet opened */ public function addInputResetButton ($buttonText) { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, "reset"), self::EXCEPTION_CLOSED_FORM); } // END - if // Generate the content $inputContent = sprintf("", $this->getFormName(), $buttonText ); // And add it $this->addContent($inputContent); } /** * Add a reset input tag to the form or throw an exception if it is not * yet opened. The field's name will be set as id. * * @param $buttonText Text displayed on the button * @return void * @throws FormClosedException If the form is not yet opened */ public function addInputSubmitButton ($buttonText) { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, "submit"), self::EXCEPTION_CLOSED_FORM); } // END - if // Generate the content $inputContent = sprintf("", $this->getFormName(), $this->getFormName(), $buttonText ); // And add it $this->addContent($inputContent); } /** * Add a form group or close an already opened and open a new one * * @param $groupName Name of the group or last opened if empty * @param $groupText Text including HTML to show above this group * @return void * @throws FormClosedException If no form has been opened before * @throws EmptyVariableException If $groupName is not set */ public function addFormGroup ($groupName = "", $groupText = "") { // Is a form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw exception here throw new FormClosedException(array($this, $groupName), self::EXCEPTION_CLOSED_FORM); } // END - if // At least the group name should be set if ((empty($groupName)) && ($this->groupOpened === false)) { // Throw exception here throw new EmptyVariableException(array($this, 'groupName'), self::EXCEPTION_UNEXPECTED_EMPTY_STRING); } elseif (empty($groupName)) { // Close the last opened $groupName = $this->groupName; } // Same group to open? if (($this->groupOpened === false) && ($groupName == $this->groupName)) { // Abort here silently return false; } // END - if // Initialize content with closing div by default $content = " \n"; // Is this group opened? if ($this->groupOpened === false) { // Begin the div/span blocks $content = sprintf("
%s
", $groupName, $groupName, $groupName, $groupText, $groupName ); // Add the content $this->addContent($content); // Switch the state $this->groupName = $groupName; $this->groupOpened = true; } else { // Is a sub group opened? if ($this->subGroupOpened === true) { // Close it here $this->addFormSubGroup(); } // END - if // Add the content $this->addContent($content); // Switch the state $this->groupOpened = false; // All call it again if the group name is not empty if (!empty($groupName)) { $this->addFormGroup($groupName, $groupText); } // END - if } } /** * Add a form sub group or close an already opened and open a new one or * throws an exception if no group has been opened before or if the sub * group name is empty. * * @param $subGroupName Name of the group or last opened if empty * @param $subGroupText Text including HTML to show above this group * @return void * @throws FormGroupClosedException If no group has been opened before * @throws EmptyVariableException If $subGroupName is not set */ public function addFormSubGroup ($subGroupName = "", $subGroupText = "") { // Is a group opened? if ($this->groupOpened === false) { // Throw exception here throw new FormGroupClosedException(array($this, $subGroupName), self::EXCEPTION_UNEXPECTED_CLOSED_GROUP); } // END - if // At least the sub group name should be set if ((empty($subGroupName)) && ($this->subGroupOpened === false)) { // Throw exception here throw new EmptyVariableException(array($this, 'groupName'), self::EXCEPTION_UNEXPECTED_EMPTY_STRING); } elseif (empty($subGroupName)) { // Close the last opened $subGroupName = $this->subGroupName; } // Same sub group to open? if (($this->subGroupOpened === false) && ($subGroupName == $this->subGroupName)) { // Abort here silently return false; } // END - if // Initialize content with closing div by default $content = "
\n
"; // Is this group opened? if ($this->subGroupOpened === false) { // Begin the span block $content = sprintf("
%s
", $subGroupName, $subGroupName, $subGroupName, $subGroupText, $subGroupName ); // Add the content $this->addContent($content); // Switch the state and remeber the name $this->subGroupOpened = true; $this->subGroupName = $subGroupName; } else { // Add the content $this->addContent($content); // Switch the state $this->subGroupOpened = false; // All call it again if sub group name is not empty if (!empty($subGroupName)) { $this->addFormSubGroup($subGroupName, $subGroupText); } // END - if } } /** * Add text surrounded by a span block when there is a group opened before * or else by a div block. * * @param $fieldName Field name * @param $fieldText Text for the field * @return void * @throws FormClosedException If the form is not yet opened */ public function addFieldText ($fieldName, $fieldText) { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, $fieldName), self::EXCEPTION_CLOSED_FORM); } // END - if // Set the block type $block = "div"; if ($this->groupOpened === true) $block = "span"; // Generate the content $inputContent = sprintf(" <%s id=\"%s_text\"> %s ", $block, $fieldName, $fieldText, $block ); // And add it $this->addContent($inputContent); } /** * Add text (notes) surrounded by a div block. Still opened groups or sub * groups will be automatically closed. * * @param $noteId Id for this note * @param $formNotes The form notes we shell addd * @return void * @throws FormClosedException If the form is not yet opened */ public function addFormNote ($noteId, $formNotes) { // Is the form opened? if (($this->formOpened === false) && ($this->formEnabled === true)) { // Throw an exception throw new FormClosedException (array($this, "form_notes"), self::EXCEPTION_CLOSED_FORM); } // END - if // Is a group open? if ($this->groupOpened === true) { // Then automatically close it here $this->addFormGroup(); } // END - if // Generate the content $inputContent = sprintf("
%s
", $noteId, $formNotes ); // And add it $this->addContent($inputContent); } /** * Checks wether the registration requires a valid email address * * @return $required Wether the email address is required */ public function ifRegisterRequiresEmailVerification () { $required = ($this->getConfigInstance()->readConfig('register_requires_email') === "Y"); return $required; } /** * Checks wether profile data shall be asked * * @return $required Wether profile shall be asked */ public function ifRegisterIncludesProfile () { $required = ($this->getConfigInstance()->readConfig('register_includes_profile') === "Y"); return $required; } /** * Adds a pre-configured CAPTCHA * * @return void */ public function addCaptcha () { // Get last executed pre filter $extraInstance = Registry::getRegistry()->getInstance('extra'); // Get a configured instance $captchaInstance = ObjectFactory::createObjectByConfiguredName($this->getFormName()."_captcha", array($this, $extraInstance)); // Initiate the CAPTCHA $captchaInstance->initiateCaptcha(); // Render the CAPTCHA code $captchaInstance->renderCode(); // Get the content and add it to the helper $this->addContent($captchaInstance->getContent()); } /** * Enables/disables the form tag usage * * @param $formEnabled Wether form is enabled or disabled * @return void */ public final function enableForm ($formEnabled = true) { $this->formEnabled = (bool) $formEnabled; } /** * Setter for form name * * @param $formName Name of this form * @return void */ public final function setFormName ($formName) { $this->formName = (string) $formName; } /** * Getter for form name * * @return $formName Name of this form */ public final function getFormName () { return $this->formName; } /** * Checks wether this form is secured by a CAPTCHA * * @return $isSecured Wether this form is secured by a CAPTCHA */ public function ifFormSecuredWithCaptcha () { $isSecured = ($this->getConfigInstance()->readConfig($this->getFormName().'_captcha_secured') === "Y"); return $isSecured; } /** * Flushs the content out (not yet secured against open forms, etc.!) or * close the form automatically * * @return void * @throws FormOpenedException If the form is still open */ public function flushContent () { // Is the form still open? if (($this->formOpened === true) && ($this->formEnabled === true)) { // Close the form automatically $this->addFormTag(); } elseif ($this->formEnabled === false) { if ($this->subGroupOpened === true) { // Close sub group $this->addFormSubGroup(); } elseif ($this->groupOpened === true) { // Close group $this->addFormGroup(); } } // Send content to template engine //* DEBUG: */ echo __METHOD__.": form=".$this->getFormName().", size=".strlen($this->getContent())."
\n"; $this->getTemplateInstance()->assignVariable($this->getFormName(), $this->getContent()); } } // [EOF] ?>