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<?php |
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|
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/** |
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* Holds the XMLTagClass |
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* |
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* $Id: XMLTagClass.inc,v 1.33 2003/07/31 23:06:53 hemna Exp $ |
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* |
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* @author Walter A. Boring IV <waboring@buildabetterweb.com> |
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* @package phpHtmlLib |
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* |
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* @copyright LGPL - See LICENCE |
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* |
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*/ |
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|
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/** |
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* make sure we include the parent class |
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*/ |
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require_once( $phphtmllib."/ContainerClass.inc" ); |
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|
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|
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/** |
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* |
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* This class is used for building and rendering |
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* an XML tag. |
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* |
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* This class is the base class for the |
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* HTMLTagClass. |
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* |
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* This is part of the phphtmllib libraries |
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* released under the LGPL license. |
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* |
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* @author Walter A. Boring IV <waboring@buildabetterweb.com> |
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* @package phpHtmlLib |
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*/ |
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class XMLTagClass extends Container { |
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|
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|
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/** |
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* Tag definition for class. |
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* subclass defines this value. |
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* ie var $tag = "<TABLE>"; |
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* @var string |
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* @access private |
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*/ |
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var $_tag = ""; |
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|
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/** |
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* Tag attributes as an array |
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* of name value pairs. |
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* ie $attributes["cellspacing"]=2; |
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* @var array |
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* @access private |
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*/ |
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var $_attributes = array(); |
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|
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|
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/** |
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* The constructor |
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* |
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* @param string - the tag name |
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* @param array - the attributes array |
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* can be in name => value |
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* or just value |
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* @param mixed - n items of content to |
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* add |
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* |
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*/ |
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function XMLTagClass($name, $attributes=array() ) { |
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$this->set_tag_name( $name ); |
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$this->set_tag_attributes( $attributes ); |
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|
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$num_args = func_num_args(); |
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for ($i=2;$i<$num_args;$i++) { |
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$this->add(func_get_arg($i)); |
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} |
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|
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$this->_set_flags(); |
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} |
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|
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|
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/** |
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* This function is responsible |
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* for rendering the tag and |
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* its contents |
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* |
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* @param int - the current indentation |
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* level for the tag |
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*/ |
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function render( $indent_level=0 ) { |
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|
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//try and guess the indentation flags |
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//based on the data |
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$this->_prepare_flags(); |
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|
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//return $xml; |
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return $this->_render_open_tag( $indent_level ) . |
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$this->_render_content( $indent_level ) . |
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$this->_render_close_tag( $indent_level ); |
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} |
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|
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|
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/****************************************/ |
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/* Some helper routines for building */ |
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/* pieces of the xml tag, its */ |
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/* attributes and PCDATA */ |
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/****************************************/ |
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|
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/** |
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* This method is used to set the bitmask |
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* flags for this tag. It tells the |
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* class how to render the tag. |
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* |
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* NOTE: the child class can override this |
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* to set the options |
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*/ |
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function _set_flags() { |
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parent::_set_flags(); |
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$this->_flags |= _NEWLINEAFTEROPENTAG | _NEWLINEAFTERCLOSETAG | |
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_CONTENTREQUIRED | _CLOSETAGREQUIRED; |
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} |
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|
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/** |
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* This method sets the name of the tag |
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* |
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* @param string - the tag name |
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*/ |
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function set_tag_name( $name ) { |
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$this->_tag = $name; |
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} |
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|
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/** |
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* This method gets the name of the tag |
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* |
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* @return string - the tag name |
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*/ |
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function get_tag_name() { |
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return $this->_tag; |
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} |
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|
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/** |
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* This returns the tag declared for this class. |
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* This should be used in favor of |
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* accessing the $this->_tag directly. |
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* |
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* @return string - the _tag var for this class. |
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*/ |
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function get_tag() { |
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//for compatibility only |
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return $this->get_tag_name(); |
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} |
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|
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/** |
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* add a single attribute (name="value") |
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* @param string $name attribute name |
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* @param mixed $value the value. |
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* @access public |
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*/ |
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function set_tag_attribute( $name, $value=NULL ) { |
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$this->_attributes[$name] = $value; |
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} |
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|
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/** |
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* add multiple attributes (name="value") |
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* @param array $attributes Associative array of name="value" pairs of |
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* tag atributes. |
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* ie array("border"=>"0", "class"=>"hover"); |
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* @access public |
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*/ |
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function set_tag_attributes( $attributes=array() ) { |
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$this->_attributes = array_merge($this->_attributes, $attributes); |
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} |
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|
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/** |
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* clear all attributes and start with new attributes |
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* @param array $attributes Associative array of name="value" pairs of |
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* tag atributes. |
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* ie array("border"=>"0", "class"=>"hover"); |
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* @access public |
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*/ |
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function reset_attributes( $attributes=array() ) { |
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$this->_attributes = array(); |
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$this->set_tag_attributes( $attributes ); |
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} |
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|
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/** |
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* get the nth element from content array |
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* @param int $cell the cell to get |
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* @return mixed |
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*/ |
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function _get_element( $cell ) { |
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return $this->_content[$cell]; |
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} |
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|
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|
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|
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//**************************************************************** |
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// Misc functions |
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//**************************************************************** |
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|
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/** |
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* set the newline_after_opentag flag |
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* @param boolean $flag TRUE or FALSE |
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*/ |
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function set_newline_after_opentag( $flag ) { |
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if ($flag) { |
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$this->_flags |= _NEWLINEAFTEROPENTAG; |
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} else{ |
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$this->_flags &= ~_NEWLINEAFTEROPENTAG; |
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} |
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} |
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|
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/** |
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* set the newline_after_content flag |
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* @param boolean $flag TRUE or FALSE |
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*/ |
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function set_newline_after_closetag( $flag ) { |
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if ($flag) { |
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$this->_flags |= _NEWLINEAFTERCLOSETAG; |
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} else{ |
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$this->_flags &= ~_NEWLINEAFTERCLOSETAG; |
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} |
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} |
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|
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/** |
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* This method turns on the automatic wrapping |
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* of the tag's content inside the CDATA wrapper |
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* for XML |
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* |
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* @param boolean $flag TRUE or FALSE |
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*/ |
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function set_cdata_flag($flag) { |
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if ($flag) { |
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$this->_flags |= _CDATACONTENTWRAP; |
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$this->set_collapse(TRUE); |
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} else{ |
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$this->_flags &= ~_CDATACONTENTWRAP; |
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} |
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} |
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|
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/** |
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* This function turns on the collapse flag |
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* |
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* @param boolean - the collapse flag |
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* @param boolean - the indent flag |
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* DEFAULT: TRUE; |
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*/ |
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function set_collapse($collapse=TRUE, $indent=TRUE) { |
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if ($collapse) { |
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$this->_flags |= _COLLAPSE; |
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} else { |
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$this->_flags &= ~_COLLAPSE; |
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} |
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|
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$this->set_newline_after_opentag(FALSE); |
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$this->set_indent_flag($indent); |
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if ($indent) { |
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$this->set_newline_after_closetag(TRUE); |
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} else { |
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$this->set_newline_after_closetag(FALSE); |
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} |
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} |
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|
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/** |
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* This function checks to see if |
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* there is only 1 content data, and |
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* its not an object, then it auto |
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* sets some of the indentation flags |
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* |
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*/ |
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function _prepare_flags() { |
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if ($this->_flags & _CONTENTREQUIRED) { |
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if ($this->count_content() == 1) { |
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if (!is_object($this->_content[0])) { |
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//ok looks like this object has only |
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//1 data for content and its a string. |
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if ( !strstr($this->_content[0], "\n") ) { |
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$this->_flags &= ~_NEWLINEAFTEROPENTAG; |
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} |
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} |
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} else if ($this->count_content() == 0) { |
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$this->_flags &= ~(_CONTENTREQUIRED | _CLOSETAGREQUIRED); |
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} |
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} |
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} |
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|
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|
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/****************************************/ |
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/* Some helper methods for rendering */ |
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/* the output xml tree. */ |
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/****************************************/ |
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|
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/** |
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* this function is responsible for |
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* rendering the open tag. |
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* |
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* @param int - the indent level |
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* @param boolean - do we add the finish / if we have no |
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* close tag and no content? |
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*/ |
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function _render_open_tag( $indent_level, $finish_slash=TRUE ) { |
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//get the indent level |
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$indent = $this->_render_indent( $indent_level ); |
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|
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//build the tag |
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if ($this->_flags & _ALWAYS_LOWERCASE) { |
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$this->_tag = strtolower($this->_tag); |
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} else if ($this->_flags & _ALWAYS_UPPERCASE) { |
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$this->_tag = strtoupper($this->_tag); |
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} |
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//save on mem |
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$xml = $indent . (@$this->_tag_prefix ? $this->_tag_prefix : _TAG_PREFIX) . $this->_tag; |
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|
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foreach( $this->_attributes as $name => $value) { |
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$xml .= $this->_build_attribute_string($name, $value); |
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} |
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|
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if ( !($this->_flags & _CLOSETAGREQUIRED) && !($this->_flags & _NOFINISHSLASHXHTML) |
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&& $finish_slash ) { |
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$xml .= " /".(@$this->_tag_postfix ? $this->_tag_postfix : _TAG_SUFFIX); |
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} else { |
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$xml .= (@$this->_tag_postfix ? $this->_tag_postfix : _TAG_SUFFIX); |
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} |
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|
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if ($this->_flags & _NEWLINEAFTEROPENTAG) { |
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$xml .= "\n"; |
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} |
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|
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return $xml; |
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} |
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|
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|
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/** |
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* this function is reponsible for |
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* rendering the pcdata, or content |
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* of the tag (if any) |
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* |
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* @param int - the indent level |
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*/ |
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function _render_content( $indent_level, $output_debug=0 ) { |
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|
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//walk through the content |
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$xml = ''; |
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for ($x=0; $x<=$this->_data_count-1; $x++) { |
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$item = &$this->_content[$x]; |
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if (method_exists($item, "render")) { |
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if (($this->_flags & _COLLAPSE) && method_exists($item, "set_collapse")) { |
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$item->set_collapse(TRUE, FALSE); |
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} |
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if ($indent_level == INDENT_LEFT_JUSTIFY) { |
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$indent = INDENT_LEFT_JUSTIFY; |
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} else { |
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$indent = $indent_level + 1; |
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} |
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$xml .= $item->render($indent, $output_debug); |
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} else { |
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if ($this->_flags & _COLLAPSE) { |
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$xml .= $item; |
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} else { |
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if ($indent_level == INDENT_LEFT_JUSTIFY) { |
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$indent = INDENT_LEFT_JUSTIFY; |
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} else { |
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$indent = $indent_level + 1; |
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} |
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$indent = $this->_render_indent($indent); |
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if ($this->_flags & _NEWLINEAFTEROPENTAG) { |
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$item = str_replace("\n", "\n" . $indent, $item); |
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$xml .= $indent . $item . "\n"; |
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} else { |
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$item = str_replace("\n", "\n" . $indent, $item); |
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$xml .= $item; |
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} |
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} |
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} |
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} |
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if ($this->_flags & _CDATACONTENTWRAP) { |
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if ($this->_flags & _COLLAPSE) { |
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$xml = "<![CDATA[ ".$xml." ]]>"; |
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} else { |
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$indent = $this->_render_indent($indent+1); |
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$indent1 = $this->_render_indent($indent+2); |
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$indent2 = $this->_render_indent($indent+3); |
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$xml = "\n".$indent1."<![CDATA[\n".$xml."\n".$indent1."]]>\n".$indent; |
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} |
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|
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} |
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return $xml; |
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} |
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|
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|
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/** |
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* this function is reposnsible for |
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* rendering the closing tag (if any) |
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* |
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* @param int - the indent level |
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*/ |
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function _render_close_tag( $indent_level ) { |
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if (!($this->_flags & _CLOSETAGREQUIRED)) { |
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return ''; |
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} |
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|
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$indent = ""; |
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if (($this->_flags & _INDENT) && ($this->_flags & _NEWLINEAFTEROPENTAG)) { |
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$indent = $this->_render_indent($indent_level); |
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} |
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$str = $indent ."</".$this->_tag.">"; |
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|
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if ($this->_flags & _NEWLINEAFTERCLOSETAG) { |
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$str .= "\n"; |
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} |
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|
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return $str; |
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} |
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|
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/** |
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* this builds an attribute for an XML tag. |
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* XML attributes MUST have a name AND a |
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* value. |
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* |
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* @param string - $name attribute name |
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* @param mixed - $value attribute value |
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* @return the tag attribute name=value pair. |
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* to be added to the tag. |
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*/ |
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function _build_attribute_string($name, $value) { |
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return " ".$name."=\"".$value."\""; |
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} |
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} |
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?> |
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