Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

625 lines (546 sloc) 14.067 kb
<?php
/**
* @package Joomla.Platform
* @subpackage Form
*
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* Abstract Form Field class for the Joomla Platform.
*
* @package Joomla.Platform
* @subpackage Form
* @since 11.1
*/
abstract class JFormField
{
/**
* The description text for the form field. Usually used in tooltips.
*
* @var string
* @since 11.1
*/
protected $description;
/**
* The SimpleXMLElement object of the <field /> XML element that describes the form field.
*
* @var SimpleXMLElement
* @since 11.1
*/
protected $element;
/**
* The JForm object of the form attached to the form field.
*
* @var JForm
* @since 11.1
*/
protected $form;
/**
* The form control prefix for field names from the JForm object attached to the form field.
*
* @var string
* @since 11.1
*/
protected $formControl;
/**
* The hidden state for the form field.
*
* @var boolean
* @since 11.1
*/
protected $hidden = false;
/**
* True to translate the field label string.
*
* @var boolean
* @since 11.1
*/
protected $translateLabel = true;
/**
* True to translate the field description string.
*
* @var boolean
* @since 11.1
*/
protected $translateDescription = true;
/**
* The document id for the form field.
*
* @var string
* @since 11.1
*/
protected $id;
/**
* The input for the form field.
*
* @var string
* @since 11.1
*/
protected $input;
/**
* The label for the form field.
*
* @var string
* @since 11.1
*/
protected $label;
/**
* The multiple state for the form field. If true then multiple values are allowed for the
* field. Most often used for list field types.
*
* @var boolean
* @since 11.1
*/
protected $multiple = false;
/**
* The name of the form field.
*
* @var string
* @since 11.1
*/
protected $name;
/**
* The name of the field.
*
* @var string
* @since 11.1
*/
protected $fieldname;
/**
* The group of the field.
*
* @var string
* @since 11.1
*/
protected $group;
/**
* The required state for the form field. If true then there must be a value for the field to
* be considered valid.
*
* @var boolean
* @since 11.1
*/
protected $required = false;
/**
* The disabled state for the form field. If true then there must not be a possibility
* to change the pre-selected value, and the value must not be submitted by the browser.
*
* @var boolean
* @since 12.3
*/
protected $disabled = false;
/**
* The readonly state for the form field. If true then there must not be a possibility
* to change the pre-selected value, and the value must submitted by the browser.
*
* @var boolean
* @since 12.3
*/
protected $readonly = false;
/**
* The form field type.
*
* @var string
* @since 11.1
*/
protected $type;
/**
* The validation method for the form field. This value will determine which method is used
* to validate the value for a field.
*
* @var string
* @since 11.1
*/
protected $validate;
/**
* The value of the form field.
*
* @var mixed
* @since 11.1
*/
protected $value;
/**
* The label's CSS class of the form field
*
* @var mixed
* @since 11.1
*/
protected $labelClass;
/**
* The count value for generated name field
*
* @var integer
* @since 11.1
*/
protected static $count = 0;
/**
* The string used for generated fields names
*
* @var integer
* @since 11.1
*/
protected static $generated_fieldname = '__field';
/**
* Method to instantiate the form field object.
*
* @param JForm $form The form to attach to the form field object.
*
* @since 11.1
*/
public function __construct(JForm $form = null)
{
// If there is a form passed into the constructor set the form and form control properties.
if ($form instanceof JForm)
{
$this->form = $form;
$this->formControl = $form->getFormControl();
}
// Detect the field type if not set
if (!isset($this->type))
{
$parts = JStringNormalise::fromCamelCase(get_called_class(), true);
if ($parts[0] == 'J')
{
$this->type = JString::ucfirst($parts[count($parts) - 1], '_');
}
else
{
$this->type = JString::ucfirst($parts[0], '_') . JString::ucfirst($parts[count($parts) - 1], '_');
}
}
}
/**
* Method to get certain otherwise inaccessible properties from the form field object.
*
* @param string $name The property name for which to the the value.
*
* @return mixed The property value or null.
*
* @since 11.1
*/
public function __get($name)
{
switch ($name)
{
case 'description':
case 'formControl':
case 'hidden':
case 'id':
case 'multiple':
case 'name':
case 'required':
case 'disabled':
case 'readonly':
case 'type':
case 'validate':
case 'value':
case 'labelClass':
case 'fieldname':
case 'group':
return $this->$name;
case 'input':
// If the input hasn't yet been generated, generate it.
if (empty($this->input))
{
$this->input = $this->getInput();
}
return $this->input;
case 'label':
// If the label hasn't yet been generated, generate it.
if (empty($this->label))
{
$this->label = $this->getLabel();
}
return $this->label;
case 'title':
return $this->getTitle();
}
return null;
}
/**
* Method to attach a JForm object to the field.
*
* @param JForm $form The JForm object to attach to the form field.
*
* @return JFormField The form field object so that the method can be used in a chain.
*
* @since 11.1
*/
public function setForm(JForm $form)
{
$this->form = $form;
$this->formControl = $form->getFormControl();
return $this;
}
/**
* Method to attach a JForm object to the field.
*
* @param SimpleXMLElement $element The SimpleXMLElement object representing the <field /> tag for the form field object.
* @param mixed $value The form field value to validate.
* @param string $group The field name group control value. This acts as as an array container for the field.
* For example if the field has name="foo" and the group value is set to "bar" then the
* full field name would end up being "bar[foo]".
*
* @return boolean True on success.
*
* @since 11.1
*/
public function setup(SimpleXMLElement $element, $value, $group = null)
{
// Make sure there is a valid JFormField XML element.
if ((string) $element->getName() != 'field')
{
return false;
}
// Reset the input and label values.
$this->input = null;
$this->label = null;
// Set the XML element object.
$this->element = $element;
// Get some important attributes from the form field element.
$class = (string) $element['class'];
$id = (string) $element['id'];
$multiple = (string) $element['multiple'];
$name = (string) $element['name'];
$required = (string) $element['required'];
$disabled = (string) $element['disabled'];
$readonly = (string) $element['readonly'];
// Set the required, disabled and validation options.
$this->required = ($required == 'true' || $required == 'required' || $required == '1');
$this->disabled = ($disabled == 'true' || $disabled == 'disabled' || $disabled == '1');
$this->readonly = ($readonly == 'true' || $readonly == 'readonly' || $readonly == '1');
$this->validate = (string) $element['validate'];
// Add the required class if the field is required.
if ($this->required)
{
if ($class)
{
if (strpos($class, 'required') === false)
{
$this->element['class'] = $class . ' required';
}
}
else
{
$this->element->addAttribute('class', 'required');
}
}
// Set the multiple values option.
$this->multiple = ($multiple == 'true' || $multiple == 'multiple');
// Allow for field classes to force the multiple values option.
if (isset($this->forceMultiple))
{
$this->multiple = (bool) $this->forceMultiple;
}
// Set the field description text.
$this->description = (string) $element['description'];
// Set the visibility.
$this->hidden = ((string) $element['type'] == 'hidden' || (string) $element['hidden'] == 'true');
// Determine whether to translate the field label and/or description.
$this->translateLabel = !((string) $this->element['translate_label'] == 'false' || (string) $this->element['translate_label'] == '0');
$this->translateDescription = !((string) $this->element['translate_description'] == 'false'
|| (string) $this->element['translate_description'] == '0');
// Set the group of the field.
$this->group = $group;
// Set the field name and id.
$this->fieldname = $this->getFieldName($name);
$this->name = $this->getName($this->fieldname);
$this->id = $this->getId($id, $this->fieldname);
// Set the field default value.
$this->value = $value;
// Set the CSS class of field label
$this->labelClass = (string) $element['labelclass'];
return true;
}
/**
* Method to get the id used for the field input tag.
*
* @param string $fieldId The field element id.
* @param string $fieldName The field element name.
*
* @return string The id to be used for the field input tag.
*
* @since 11.1
*/
protected function getId($fieldId, $fieldName)
{
$id = '';
// If there is a form control set for the attached form add it first.
if ($this->formControl)
{
$id .= $this->formControl;
}
// If the field is in a group add the group control to the field id.
if ($this->group)
{
// If we already have an id segment add the group control as another level.
if ($id)
{
$id .= '_' . str_replace('.', '_', $this->group);
}
else
{
$id .= str_replace('.', '_', $this->group);
}
}
// If we already have an id segment add the field id/name as another level.
if ($id)
{
$id .= '_' . ($fieldId ? $fieldId : $fieldName);
}
else
{
$id .= ($fieldId ? $fieldId : $fieldName);
}
// Clean up any invalid characters.
$id = preg_replace('#\W#', '_', $id);
return $id;
}
/**
* Method to get the field input markup.
*
* @return string The field input markup.
*
* @since 11.1
*/
abstract protected function getInput();
/**
* Method to get the field title.
*
* @return string The field title.
*
* @since 11.1
*/
protected function getTitle()
{
$title = '';
if ($this->hidden)
{
return $title;
}
// Get the label text from the XML element, defaulting to the element name.
$title = $this->element['label'] ? (string) $this->element['label'] : (string) $this->element['name'];
$title = $this->translateLabel ? JText::_($title) : $title;
return $title;
}
/**
* Method to get the field label markup.
*
* @return string The field label markup.
*
* @since 11.1
*/
protected function getLabel()
{
$label = '';
if ($this->hidden)
{
return $label;
}
// Get the label text from the XML element, defaulting to the element name.
$text = $this->element['label'] ? (string) $this->element['label'] : (string) $this->element['name'];
$text = $this->translateLabel ? JText::_($text) : $text;
// Build the class for the label.
$class = !empty($this->description) ? 'hasTip' : '';
$class = $this->required == true ? $class . ' required' : $class;
$class = !empty($this->labelClass) ? $class . ' ' . $this->labelClass : $class;
// Add the opening label tag and main attributes attributes.
$label .= '<label id="' . $this->id . '-lbl" for="' . $this->id . '" class="' . $class . '"';
// If a description is specified, use it to build a tooltip.
if (!empty($this->description))
{
$label .= ' title="'
. htmlspecialchars(
trim($text, ':') . '::' . ($this->translateDescription ? JText::_($this->description) : $this->description),
ENT_COMPAT, 'UTF-8'
) . '"';
}
// Add the label text and closing tag.
if ($this->required)
{
$label .= '>' . $text . '<span class="star">&#160;*</span></label>';
}
else
{
$label .= '>' . $text . '</label>';
}
return $label;
}
/**
* Method to get the name used for the field input tag.
*
* @param string $fieldName The field element name.
*
* @return string The name to be used for the field input tag.
*
* @since 11.1
*/
protected function getName($fieldName)
{
$name = '';
// If there is a form control set for the attached form add it first.
if ($this->formControl)
{
$name .= $this->formControl;
}
// If the field is in a group add the group control to the field name.
if ($this->group)
{
// If we already have a name segment add the group control as another level.
$groups = explode('.', $this->group);
if ($name)
{
foreach ($groups as $group)
{
$name .= '[' . $group . ']';
}
}
else
{
$name .= array_shift($groups);
foreach ($groups as $group)
{
$name .= '[' . $group . ']';
}
}
}
// If we already have a name segment add the field name as another level.
if ($name)
{
$name .= '[' . $fieldName . ']';
}
else
{
$name .= $fieldName;
}
// If the field should support multiple values add the final array segment.
if ($this->multiple)
{
$name .= '[]';
}
return $name;
}
/**
* Method to get the field name used.
*
* @param string $fieldName The field element name.
*
* @return string The field name
*
* @since 11.1
*/
protected function getFieldName($fieldName)
{
if ($fieldName)
{
return $fieldName;
}
else
{
self::$count = self::$count + 1;
return self::$generated_fieldname . self::$count;
}
}
}
Jump to Line
Something went wrong with that request. Please try again.