tag.php.svn-base

来自「PHP 知识管理系统（基于树结构的知识管理系统）, 英文原版的PHP源码。」· SVN-BASE 代码 · 共 1,418 行 · 第 1/3 页

     *    @access public
     */
    function getLabel() {
        if ($this->getAttribute('title')) {
            return $this->getAttribute('title');
        }
        return $this->getAttribute('alt');
    }
    
    /**
     *    Test for a label match when searching.
     *    @param string $label     Label to test.
     *    @return boolean          True on match.
     *    @access public
     */
    function isLabel($label) {
        return trim($label) == trim($this->getLabel());
    }
    
    /**
     *    Dispatches the value into the form encoded packet.
     *    @param SimpleEncoding $encoding    Form packet.
     *    @param integer $x                  X coordinate of click.
     *    @param integer $y                  Y coordinate of click.
     *    @access public
     */
    function write(&$encoding, $x, $y) {
        if ($this->getName()) {
            $encoding->add($this->getName() . '.x', $x);
            $encoding->add($this->getName() . '.y', $y);
        } else {
            $encoding->add('x', $x);
            $encoding->add('y', $y);
        }
    }
}
    
/**
 *    Submit button as button tag.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleButtonTag extends SimpleWidget {
    
    /**
     *    Starts with a named tag with attributes only.
     *    Defaults are very browser dependent.
     *    @param hash $attributes    Attribute names and
     *                               string values.
     */
    function SimpleButtonTag($attributes) {
        $this->SimpleWidget('button', $attributes);
    }
    
    /**
     *    Check to see if the tag can have both start and
     *    end tags with content in between.
     *    @return boolean        True if content allowed.
     *    @access public
     */
    function expectEndTag() {
        return true;
    }
    
    /**
     *    Disables the setting of the button value.
     *    @param string $value       Ignored.
     *    @return boolean            True if allowed.
     *    @access public
     */
    function setValue($value) {
        return false;
    }
    
    /**
     *    Value of browser visible text.
     *    @return string        Visible label.
     *    @access public
     */
    function getLabel() {
        return $this->getContent();
    }
    
    /**
     *    Test for a label match when searching.
     *    @param string $label     Label to test.
     *    @return boolean          True on match.
     *    @access public
     */
    function isLabel($label) {
        return trim($label) == trim($this->getLabel());
    }
}

/**
 *    Content tag for text area.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleTextAreaTag extends SimpleWidget {
    
    /**
     *    Starts with a named tag with attributes only.
     *    @param hash $attributes    Attribute names and
     *                               string values.
     */
    function SimpleTextAreaTag($attributes) {
        $this->SimpleWidget('textarea', $attributes);
    }
    
    /**
     *    Accessor for starting value.
     *    @return string        Parsed value.
     *    @access public
     */
    function getDefault() {
        return $this->_wrap(SimpleHtmlSaxParser::decodeHtml($this->getContent()));
    }
    
    /**
     *    Applies word wrapping if needed.
     *    @param string $value      New value.
     *    @return boolean            True if allowed.
     *    @access public
     */
    function setValue($value) {
        return parent::setValue($this->_wrap($value));
    }
    
    /**
     *    Test to see if text should be wrapped.
     *    @return boolean        True if wrapping on.
     *    @access private
     */
    function _wrapIsEnabled() {
        if ($this->getAttribute('cols')) {
            $wrap = $this->getAttribute('wrap');
            if (($wrap == 'physical') || ($wrap == 'hard')) {
                return true;
            }
        }
        return false;
    }
    
    /**
     *    Performs the formatting that is peculiar to
     *    this tag. There is strange behaviour in this
     *    one, including stripping a leading new line.
     *    Go figure. I am using Firefox as a guide.
     *    @param string $text    Text to wrap.
     *    @return string         Text wrapped with carriage
     *                           returns and line feeds
     *    @access private
     */
    function _wrap($text) {
        $text = str_replace("\r\r\n", "\r\n", str_replace("\n", "\r\n", $text));
        $text = str_replace("\r\n\n", "\r\n", str_replace("\r", "\r\n", $text));
        if (strncmp($text, "\r\n", strlen("\r\n")) == 0) {
            $text = substr($text, strlen("\r\n"));
        }
        if ($this->_wrapIsEnabled()) {
            return wordwrap(
                    $text,
                    (integer)$this->getAttribute('cols'),
                    "\r\n");
        }
        return $text;
    }
    
    /**
     *    The content of textarea is not part of the page.
     *    @return boolean        True.
     *    @access public
     */
    function isPrivateContent() {
        return true;
    }
}

/**
 *    File upload widget.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleUploadTag extends SimpleWidget {
    
    /**
     *    Starts with attributes only.
     *    @param hash $attributes    Attribute names and
     *                               string values.
     */
    function SimpleUploadTag($attributes) {
        $this->SimpleWidget('input', $attributes);
    }
    
    /**
     *    Tag contains no content.
     *    @return boolean        False.
     *    @access public
     */
    function expectEndTag() {
        return false;
    }
    
    /**
     *    Dispatches the value into the form encoded packet.
     *    @param SimpleEncoding $encoding    Form packet.
     *    @access public
     */
    function write(&$encoding) {
        if (! file_exists($this->getValue())) {
            return;
        }
        $encoding->attach(
                $this->getName(),
                implode('', file($this->getValue())),
                basename($this->getValue()));
    }
}

/**
 *    Drop down widget.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleSelectionTag extends SimpleWidget {
    var $_options;
    var $_choice;
    
    /**
     *    Starts with attributes only.
     *    @param hash $attributes    Attribute names and
     *                               string values.
     */
    function SimpleSelectionTag($attributes) {
        $this->SimpleWidget('select', $attributes);
        $this->_options = array();
        $this->_choice = false;
    }
    
    /**
     *    Adds an option tag to a selection field.
     *    @param SimpleOptionTag $tag     New option.
     *    @access public
     */
    function addTag(&$tag) {
        if ($tag->getTagName() == 'option') {
            $this->_options[] = &$tag;
        }
    }
    
    /**
     *    Text within the selection element is ignored.
     *    @param string $content        Ignored.
     *    @access public
     */
    function addContent($content) {
    }
    
    /**
     *    Scans options for defaults. If none, then
     *    the first option is selected.
     *    @return string        Selected field.
     *    @access public
     */
    function getDefault() {
        for ($i = 0, $count = count($this->_options); $i < $count; $i++) {
            if ($this->_options[$i]->getAttribute('selected') !== false) {
                return $this->_options[$i]->getDefault();
            }
        }
        if ($count > 0) {
            return $this->_options[0]->getDefault();
        }
        return '';
    }
    
    /**
     *    Can only set allowed values.
     *    @param string $value       New choice.
     *    @return boolean            True if allowed.
     *    @access public
     */
    function setValue($value) {
        for ($i = 0, $count = count($this->_options); $i < $count; $i++) {
            if ($this->_options[$i]->isValue($value)) {
                $this->_choice = $i;
                return true;
            }
        }
        return false;
    }
    
    /**
     *    Accessor for current selection value.
     *    @return string      Value attribute or
     *                        content of opton.
     *    @access public
     */
    function getValue() {
        if ($this->_choice === false) {
            return $this->getDefault();
        }
        return $this->_options[$this->_choice]->getValue();
    }
}

/**
 *    Drop down widget.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class MultipleSelectionTag extends SimpleWidget {
    var $_options;
    var $_values;
    
    /**
     *    Starts with attributes only.
     *    @param hash $attributes    Attribute names and
     *                               string values.
     */
    function MultipleSelectionTag($attributes) {
        $this->SimpleWidget('select', $attributes);
        $this->_options = array();
        $this->_values = false;
    }
    
    /**
     *    Adds an option tag to a selection field.
     *    @param SimpleOptionTag $tag     New option.
     *    @access public
     */
    function addTag(&$tag) {
        if ($tag->getTagName() == 'option') {
            $this->_options[] = &$tag;
        }
    }
    
    /**
     *    Text within the selection element is ignored.
     *    @param string $content        Ignored.
     *    @access public
     */
    function addContent($content) {
    }
    
    /**
     *    Scans options for defaults to populate the
     *    value array().
     *    @return array        Selected fields.
     *    @access public
     */
    function getDefault() {
        $default = array();
        for ($i = 0, $count = count($this->_options); $i < $count; $i++) {
            if ($this->_options[$i]->getAttribute('selected') !== false) {
                $default[] = $this->_options[$i]->getDefault();
            }
        }
        return $default;
    }
    
    /**
     *    Can only set allowed values. Any illegal value
     *    will result in a failure, but all correct values
     *    will be set.
     *    @param array $desired      New choices.
     *    @return boolean            True if all allowed.
     *    @access public
     */
    function setValue($desired) {
        $achieved = array();
        foreach ($desired as $value) {
            $success = false;
            for ($i = 0, $count = count($this->_options); $i < $count; $i++) {
                if ($this->_options[$i]->isValue($value)) {
                    $achieved[] = $this->_options[$i]->getValue();
                    $success = true;
                    break;
                }
            }
            if (! $success) {
                return false;
            }
        }
        $this->_values = $achieved;
        return true;
    }
    
    /**
     *    Accessor for current selection value.
     *    @return array      List of currently set options.
     *    @access public
     */
    function getValue() {
        if ($this->_values === false) {
            return $this->getDefault();
        }
        return $this->_values;
    }
}

/**
 *    Option for selection field.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleOptionTag extends SimpleWidget {
    
    /**
     *    Stashes the attributes.
     */
    function SimpleOptionTag($attributes) {
        $this->SimpleWidget('option', $attributes);
    }
    
    /**
     *    Does nothing.
     *    @param string $value      Ignored.
     *    @return boolean           Not allowed.
     *    @access public
     */
    function setValue($value) {
        return false;
    }
    
    /**
     *    Test to see if a value matches the option.
     *    @param string $compare    Value to compare with.
     *    @return boolean           True if possible match.
     *    @access public
     */
    function isValue($compare) {
        $compare = trim($compare);
        if (trim($this->getValue()) == $compare) {
            return true;
        }
        return trim($this->getContent()) == $compare;
    }
    
    /**
     *    Accessor for starting value. Will be set to
     *    the option label if no value exists.
     *    @return string        Parsed value.
     *    @access public
     */
    function getDefault() {
        if ($this->getAttribute('value') === false) {
            return $this->getContent();
        }
        return $this->getAttribute('value');
    }
    
    /**
     *    The content of options is not part of the page.
     *    @return boolean        True.
     *    @access public
     */
    function isPrivateContent() {
        return true;
    }
}

/**
 *    Radio button.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleRadioButtonTag extends SimpleWidget {
    
    /**
     *    Stashes the attributes.
     *    @param array $attributes        Hash of attributes.