group.php

Piwik#Opensourcewebanalytics一款可以和GOOGLE媲美的开源统计系统,运用AJAX.功能强大.无色提示:按照需要PHP5.1以上和MySQL数据库支持。

     * @since       1.0
     * @access      public
     * @return      string
     */
    function toHtml()
    {
        include_once('HTML/QuickForm/Renderer/Default.php');
        $renderer = new HTML_QuickForm_Renderer_Default();
        $renderer->setElementTemplate('{element}');
        $this->accept($renderer);
        return $renderer->toHtml();
    } //end func toHtml
    
    // }}}
    // {{{ getElementName()

    /**
     * Returns the element name inside the group such as found in the html form
     * 
     * @param     mixed     $index  Element name or element index in the group
     * @since     3.0
     * @access    public
     * @return    mixed     string with element name, false if not found
     */
    function getElementName($index)
    {
        $this->_createElementsIfNotExist();
        $elementName = false;
        if (is_int($index) && isset($this->_elements[$index])) {
            $elementName = $this->_elements[$index]->getName();
            if (isset($elementName) && $elementName == '') {
                $elementName = $index;
            }
            if ($this->_appendName) {
                if (is_null($elementName)) {
                    $elementName = $this->getName();
                } else {
                    $elementName = $this->getName().'['.$elementName.']';
                }
            }

        } elseif (is_string($index)) {
            foreach (array_keys($this->_elements) as $key) {
                $elementName = $this->_elements[$key]->getName();
                if ($index == $elementName) {
                    if ($this->_appendName) {
                        $elementName = $this->getName().'['.$elementName.']';
                    }
                    break;
                } elseif ($this->_appendName && $this->getName().'['.$elementName.']' == $index) {
                    break;
                }
            }
        }
        return $elementName;
    } //end func getElementName

    // }}}
    // {{{ getFrozenHtml()

    /**
     * Returns the value of field without HTML tags
     * 
     * @since     1.3
     * @access    public
     * @return    string
     */
    function getFrozenHtml()
    {
        $flags = array();
        $this->_createElementsIfNotExist();
        foreach (array_keys($this->_elements) as $key) {
            if (false === ($flags[$key] = $this->_elements[$key]->isFrozen())) {
                $this->_elements[$key]->freeze();
            }
        }
        $html = $this->toHtml();
        foreach (array_keys($this->_elements) as $key) {
            if (!$flags[$key]) {
                $this->_elements[$key]->unfreeze();
            }
        }
        return $html;
    } //end func getFrozenHtml

    // }}}
    // {{{ onQuickFormEvent()

    /**
     * Called by HTML_QuickForm whenever form event is made on this element
     *
     * @param     string    $event  Name of event
     * @param     mixed     $arg    event arguments
     * @param     object    &$caller calling object
     * @since     1.0
     * @access    public
     * @return    void
     */
    function onQuickFormEvent($event, $arg, &$caller)
    {
        switch ($event) {
            case 'updateValue':
                $this->_createElementsIfNotExist();
                foreach (array_keys($this->_elements) as $key) {
                    if ($this->_appendName) {
                        $elementName = $this->_elements[$key]->getName();
                        if (is_null($elementName)) {
                            $this->_elements[$key]->setName($this->getName());
                        } elseif ('' === $elementName) {
                            $this->_elements[$key]->setName($this->getName() . '[' . $key . ']');
                        } else {
                            $this->_elements[$key]->setName($this->getName() . '[' . $elementName . ']');
                        }
                    }
                    $this->_elements[$key]->onQuickFormEvent('updateValue', $arg, $caller);
                    if ($this->_appendName) {
                        $this->_elements[$key]->setName($elementName);
                    }
                }
                break;

            default:
                parent::onQuickFormEvent($event, $arg, $caller);
        }
        return true;
    } // end func onQuickFormEvent

    // }}}
    // {{{ accept()

   /**
    * Accepts a renderer
    *
    * @param HTML_QuickForm_Renderer    renderer object
    * @param bool                       Whether a group is required
    * @param string                     An error message associated with a group
    * @access public
    * @return void 
    */
    function accept(&$renderer, $required = false, $error = null)
    {
        $this->_createElementsIfNotExist();
        $renderer->startGroup($this, $required, $error);
        $name = $this->getName();
        foreach (array_keys($this->_elements) as $key) {
            $element =& $this->_elements[$key];
            
            if ($this->_appendName) {
                $elementName = $element->getName();
                if (isset($elementName)) {
                    $element->setName($name . '['. (strlen($elementName)? $elementName: $key) .']');
                } else {
                    $element->setName($name);
                }
            }

            $required = !$element->isFrozen() && in_array($element->getName(), $this->_required);

            $element->accept($renderer, $required);

            // restore the element's name
            if ($this->_appendName) {
                $element->setName($elementName);
            }
        }
        $renderer->finishGroup($this);
    } // end func accept

    // }}}
    // {{{ exportValue()

   /**
    * As usual, to get the group's value we access its elements and call
    * their exportValue() methods
    */
    function exportValue(&$submitValues, $assoc = false)
    {
        $value = null;
        foreach (array_keys($this->_elements) as $key) {
            $elementName = $this->_elements[$key]->getName();
            if ($this->_appendName) {
                if (is_null($elementName)) {
                    $this->_elements[$key]->setName($this->getName());
                } elseif ('' === $elementName) {
                    $this->_elements[$key]->setName($this->getName() . '[' . $key . ']');
                } else {
                    $this->_elements[$key]->setName($this->getName() . '[' . $elementName . ']');
                }
            }
            $v = $this->_elements[$key]->exportValue($submitValues, $assoc);
            if ($this->_appendName) {
                $this->_elements[$key]->setName($elementName);
            }
            if (null !== $v) {
                // Make $value an array, we will use it like one
                if (null === $value) {
                    $value = array();
                }
                if ($assoc) {
                    // just like HTML_QuickForm::exportValues()
                    $value = HTML_QuickForm::arrayMerge($value, $v);
                } else {
                    // just like getValue(), but should work OK every time here
                    if (is_null($elementName)) {
                        $value = $v;
                    } elseif ('' === $elementName) {
                        $value[] = $v;
                    } else {
                        $value[$elementName] = $v;
                    }
                }
            }
        }
        // do not pass the value through _prepareValue, we took care of this already
        return $value;
    }

    // }}}
    // {{{ _createElements()

   /**
    * Creates the group's elements.
    * 
    * This should be overriden by child classes that need to create their 
    * elements. The method will be called automatically when needed, calling
    * it from the constructor is discouraged as the constructor is usually
    * called _twice_ on element creation, first time with _no_ parameters.
    * 
    * @access private
    * @abstract
    */
    function _createElements()
    {
        // abstract
    }

    // }}}
    // {{{ _createElementsIfNotExist()

   /**
    * A wrapper around _createElements()
    *
    * This method calls _createElements() if the group's _elements array
    * is empty. It also performs some updates, e.g. freezes the created
    * elements if the group is already frozen.
    *
    * @access private
    */
    function _createElementsIfNotExist()
    {
        if (empty($this->_elements)) {
            $this->_createElements();
            if ($this->_flagFrozen) {
                $this->freeze();
            }
        }
    }

    // }}}
    // {{{ freeze()

    function freeze()
    {
        parent::freeze();
        foreach (array_keys($this->_elements) as $key) {
            $this->_elements[$key]->freeze();
        }
    }

    // }}}
    // {{{ unfreeze()

    function unfreeze()
    {
        parent::unfreeze();
        foreach (array_keys($this->_elements) as $key) {
            $this->_elements[$key]->unfreeze();
        }
    }

    // }}}
    // {{{ setPersistantFreeze()

    function setPersistantFreeze($persistant = false)
    {
        parent::setPersistantFreeze($persistant);
        foreach (array_keys($this->_elements) as $key) {
            $this->_elements[$key]->setPersistantFreeze($persistant);
        }
    }

    // }}}
} //end class HTML_QuickForm_group
?>