tag.php

来自「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:」· PHP 代码 · 共 1,418 行 · 第 1/3 页

         */
        function SimpleRadioButtonTag($attributes) {
            $this->SimpleWidget('input', $attributes);
            if ($this->getAttribute('value') === false) {
                $this->_setAttribute('value', 'on');
            }
        }
        
        /**
         *    Tag contains no content.
         *    @return boolean        False.
         *    @access public
         */
        function expectEndTag() {
            return false;
        }
        
        /**
         *    The only allowed value sn the one in the
         *    "value" attribute.
         *    @param string $value      New value.
         *    @return boolean           True if allowed.
         *    @access public
         */
        function setValue($value) {
            if ($value === false) {
                return parent::setValue($value);
            }
            if ($value !== $this->getAttribute('value')) {
                return false;
            }
            return parent::setValue($value);
        }
        
        /**
         *    Accessor for starting value.
         *    @return string        Parsed value.
         *    @access public
         */
        function getDefault() {
            if ($this->getAttribute('checked') !== false) {
                return $this->getAttribute('value');
            }
            return false;
        }
    }
    
    /**
     *    Checkbox widget.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleCheckboxTag extends SimpleWidget {
        
        /**
         *    Starts with attributes only.
         *    @param hash $attributes    Attribute names and
         *                               string values.
         */
        function SimpleCheckboxTag($attributes) {
            $this->SimpleWidget('input', $attributes);
            if ($this->getAttribute('value') === false) {
                $this->_setAttribute('value', 'on');
            }
        }
        
        /**
         *    Tag contains no content.
         *    @return boolean        False.
         *    @access public
         */
        function expectEndTag() {
            return false;
        }
        
        /**
         *    The only allowed value in the one in the
         *    "value" attribute. The default for this
         *    attribute is "on". If this widget is set to
         *    true, then the usual value will be taken.
         *    @param string $value      New value.
         *    @return boolean           True if allowed.
         *    @access public
         */
        function setValue($value) {
            if ($value === false) {
                return parent::setValue($value);
            }
            if ($value === true) {
                return parent::setValue($this->getAttribute('value'));
            }
            if ($value != $this->getAttribute('value')) {
                return false;
            }
            return parent::setValue($value);
        }
        
        /**
         *    Accessor for starting value. The default
         *    value is "on".
         *    @return string        Parsed value.
         *    @access public
         */
        function getDefault() {
            if ($this->getAttribute('checked') !== false) {
                return $this->getAttribute('value');
            }
            return false;
        }
    }
    
    /**
     *    A group of multiple widgets with some shared behaviour.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleTagGroup {
        var $_widgets = array();

        /**
         *    Adds a tag to the group.
         *    @param SimpleWidget $widget
         *    @access public
         */
        function addWidget(&$widget) {
            $this->_widgets[] = &$widget;
        }
        
        /**
         *    Accessor to widget set.
         *    @return array        All widgets.
         *    @access protected
         */
        function &_getWidgets() {
            return $this->_widgets;
        }

        /**
         *    Accessor for an attribute.
         *    @param string $label    Attribute name.
         *    @return boolean         Always false.
         *    @access public
         */
        function getAttribute($label) {
            return false;
        }
        
        /**
         *    Fetches the name for the widget from the first
         *    member.
         *    @return string        Name of widget.
         *    @access public
         */
        function getName() {
            if (count($this->_widgets) > 0) {
                return $this->_widgets[0]->getName();
            }
        }
        
        /**
         *    Scans the widgets for one with the appropriate
         *    ID field.
         *    @param string $id        ID value to try.
         *    @return boolean          True if matched.
         *    @access public
         */
        function isId($id) {
            for ($i = 0, $count = count($this->_widgets); $i < $count; $i++) {
                if ($this->_widgets[$i]->isId($id)) {
                    return true;
                }
            }
            return false;
        }
        
        /**
         *    Scans the widgets for one with the appropriate
         *    attached label.
         *    @param string $label     Attached label to try.
         *    @return boolean          True if matched.
         *    @access public
         */
        function isLabel($label) {
            for ($i = 0, $count = count($this->_widgets); $i < $count; $i++) {
                if ($this->_widgets[$i]->isLabel($label)) {
                    return true;
                }
            }
            return false;
        }
        
        /**
         *    Dispatches the value into the form encoded packet.
         *    @param SimpleEncoding $encoding    Form packet.
         *    @access public
         */
        function write(&$encoding) {
            $encoding->add($this->getName(), $this->getValue());
        }
    }

    /**
     *    A group of tags with the same name within a form.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleCheckboxGroup extends SimpleTagGroup {
        
        /**
         *    Accessor for current selected widget or false
         *    if none.
         *    @return string/array     Widget values or false if none.
         *    @access public
         */
        function getValue() {
            $values = array();
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                if ($widgets[$i]->getValue() !== false) {
                    $values[] = $widgets[$i]->getValue();
                }
            }
            return $this->_coerceValues($values);
        }
        
        /**
         *    Accessor for starting value that is active.
         *    @return string/array      Widget values or false if none.
         *    @access public
         */
        function getDefault() {
            $values = array();
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                if ($widgets[$i]->getDefault() !== false) {
                    $values[] = $widgets[$i]->getDefault();
                }
            }
            return $this->_coerceValues($values);
        }
        
        /**
         *    Accessor for current set values.
         *    @param string/array/boolean $values   Either a single string, a
         *                                          hash or false for nothing set.
         *    @return boolean                       True if all values can be set.
         *    @access public
         */
        function setValue($values) {
            $values = $this->_makeArray($values);
            if (! $this->_valuesArePossible($values)) {
                return false;
            }
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                $possible = $widgets[$i]->getAttribute('value');
                if (in_array($widgets[$i]->getAttribute('value'), $values)) {
                    $widgets[$i]->setValue($possible);
                } else {
                    $widgets[$i]->setValue(false);
                }
            }
            return true;
        }
        
        /**
         *    Tests to see if a possible value set is legal.
         *    @param string/array/boolean $values   Either a single string, a
         *                                          hash or false for nothing set.
         *    @return boolean                       False if trying to set a
         *                                          missing value.
         *    @access private
         */
        function _valuesArePossible($values) {
            $matches = array();
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                $possible = $widgets[$i]->getAttribute('value');
                if (in_array($possible, $values)) {
                    $matches[] = $possible;
                }
            }
            return ($values == $matches);
        }
        
        /**
         *    Converts the output to an appropriate format. This means
         *    that no values is false, a single value is just that
         *    value and only two or more are contained in an array.
         *    @param array $values           List of values of widgets.
         *    @return string/array/boolean   Expected format for a tag.
         *    @access private
         */
        function _coerceValues($values) {
            if (count($values) == 0) {
                return false;
            } elseif (count($values) == 1) {
                return $values[0];
            } else {
                return $values;
            }
        }
        
        /**
         *    Converts false or string into array. The opposite of
         *    the coercian method.
         *    @param string/array/boolean $value  A single item is converted
         *                                        to a one item list. False
         *                                        gives an empty list.
         *    @return array                       List of values, possibly empty.
         *    @access private
         */
        function _makeArray($value) {
            if ($value === false) {
                return array();
            }
            if (is_string($value)) {
                return array($value);
            }
            return $value;
        }
    }

    /**
     *    A group of tags with the same name within a form.
     *    Used for radio buttons.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleRadioGroup extends SimpleTagGroup {
        
        /**
         *    Each tag is tried in turn until one is
         *    successfully set. The others will be
         *    unchecked if successful.
         *    @param string $value      New value.
         *    @return boolean           True if any allowed.
         *    @access public
         */
        function setValue($value) {
            if (! $this->_valueIsPossible($value)) {
                return false;
            }
            $index = false;
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                if (! $widgets[$i]->setValue($value)) {
                    $widgets[$i]->setValue(false);
                }
            }
            return true;
        }
        
        /**
         *    Tests to see if a value is allowed.
         *    @param string    Attempted value.
         *    @return boolean  True if a valid value.
         *    @access private
         */
        function _valueIsPossible($value) {
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                if ($widgets[$i]->getAttribute('value') == $value) {
                    return true;
                }
            }
            return false;
        }
        
        /**
         *    Accessor for current selected widget or false
         *    if none.
         *    @return string/boolean   Value attribute or
         *                             content of opton.
         *    @access public
         */
        function getValue() {
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                if ($widgets[$i]->getValue() !== false) {
                    return $widgets[$i]->getValue();
                }
            }
            return false;
        }
        
        /**
         *    Accessor for starting value that is active.
         *    @return string/boolean      Value of first checked
         *                                widget or false if none.
         *    @access public
         */
        function getDefault() {
            $widgets = &$this->_getWidgets();
            for ($i = 0, $count = count($widgets); $i < $count; $i++) {
                if ($widgets[$i]->getDefault() !== false) {
                    return $widgets[$i]->getDefault();
                }
            }
            return false;
        }
    }
    
    /**
     *    Tag to keep track of labels.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleLabelTag extends SimpleTag {
        
        /**
         *    Starts with a named tag with attributes only.
         *    @param hash $attributes    Attribute names and
         *                               string values.
         */
        function SimpleLabelTag($attributes) {
            $this->SimpleTag('label', $attributes);
        }
        
        /**
         *    Access for the ID to attach the label to.
         *    @return string        For attribute.
         *    @access public
         */
        function getFor() {
            return $this->getAttribute('for');
        }
    }
    
    /**
     *    Tag to aid parsing the form.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleFormTag extends SimpleTag {
        
        /**
         *    Starts with a named tag with attributes only.
         *    @param hash $attributes    Attribute names and
         *                               string values.
         */
        function SimpleFormTag($attributes) {
            $this->SimpleTag('form', $attributes);
        }
    }
    
    /**
     *    Tag to aid parsing the frames in a page.
	 *    @package SimpleTest
	 *    @subpackage WebTester
     */
    class SimpleFrameTag extends SimpleTag {
        
        /**
         *    Starts with a named tag with attributes only.
         *    @param hash $attributes    Attribute names and
         *                               string values.
         */
        function SimpleFrameTag($attributes) {
            $this->SimpleTag('frame', $attributes);
        }
        
        /**
         *    Tag contains no content.
         *    @return boolean        False.
         *    @access public
         */
        function expectEndTag() {
            return false;
        }
    }
?>