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jonen |
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<?php |
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/** |
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* Holds the Container class. |
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* |
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* $Id: ContainerClass.inc,v 1.15 2003/02/20 23:23:42 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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* This class is nothing more then a |
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* container widget. It lets you |
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* push data into it, and it will |
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* render each item indented properly |
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* so it works with the rest of the libs. |
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* |
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* This is helpfull when you have a function |
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* that wants to return multiple Tag Objects |
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* or widgets. Just wrap them in this container |
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* and they will all get rendered with the |
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* current indentation level. |
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* |
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* Base Class for phpHtmlLib |
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* |
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* @link http://phphtmllib.sourceforge.net |
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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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*/ |
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class Container { |
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/** |
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* Tag content as a stack |
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* ie <span> content here </span> |
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* @var array |
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* @access private |
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*/ |
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var $_content = array(); |
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/** |
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* This keeps track of how much content |
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* data has been pushed into the content |
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* portion of the tag. |
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* |
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* @var int |
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* @access private |
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*/ |
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var $_data_count = 0; |
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/** |
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* The flags that tell us |
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* how to render the tag |
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* its contents, and the close |
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*/ |
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var $_flags = _NEWLINEAFTERCONTENT; |
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|
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/** |
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* The constructor. |
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* |
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* This lets you pass in data |
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* that you want automatically |
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* added to the container. This |
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* works in the same manner as |
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* the push() method. |
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*/ |
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function Container() { |
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//We do the adding to the content var |
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//here instead of calling $this->push() |
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//to save some cpu cycles. |
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$num = func_num_args(); |
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for ($i=0;$i<$num;$i++) { |
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$arg = func_get_arg($i); |
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array_push($this->_content, $arg); |
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} |
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$this->_data_count += $num; |
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//set the flag bitmask |
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$this->_set_flags(); |
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} |
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/** |
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* This function is compatible with the |
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* rest of the phpHtmllib API spec. |
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* It just walks through each of the |
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* class' data and renders it with the |
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* appropriate indentation. |
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* |
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* @param int - the indentation level for |
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* the container. |
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* @param int - the output debug flag to |
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* maintain compatibility w/ the API. |
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* |
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* @return string the raw html output. |
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*/ |
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function render($indent_level=0, $output_debug=0) { |
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$html = ''; |
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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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$html .= $item->render($indent_level, $output_debug); |
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} else { |
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if ($this->_flags & _COLLAPSE) { |
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$html .= $item; |
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} else { |
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$indent = $this->_render_indent($indent_level, $output_debug); |
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$html .= $indent.$item; |
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if ($this->_flags & _NEWLINEAFTERCONTENT) { |
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$html .= "\n"; |
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} |
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} |
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} |
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} |
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if ($this->_flags & _COLLAPSE) { |
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$indent = $this->_render_indent($indent_level, $output_debug); |
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if ($this->_flags & _NEWLINEAFTERCONTENT) { |
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if ($output_debug) { |
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$html = $indent . $html . "<br>\n"; |
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} else { |
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$html = $indent . $html . "\n"; |
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} |
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} else { |
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$html = $indent . $html; |
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} |
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} |
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return $html; |
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} |
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/***************************/ |
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/* DATA specific functions */ |
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/***************************/ |
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/** |
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* Same as add(). |
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* NOTE: only exists for 1.1.x compatibility |
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* |
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* @deprecated |
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* @param mixed $content - either string, or tag object. |
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* @access public |
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*/ |
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function push( ) { |
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$args = func_get_args(); |
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call_user_func_array( array(&$this, "add"), $args); |
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} |
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/** |
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* add content onto content stack |
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* |
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* adds content to tag as a FIFO. |
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* You can have n number of parameters. |
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* each one will get added in succession to the content. |
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* @param mixed $content - either string, or tag object. |
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* @access public |
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*/ |
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function add( ) { |
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$args = func_get_args(); |
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$num = 0; |
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foreach( $args as $arg ) { |
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$this->_content[] = $arg; |
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$num++; |
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} |
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//keep track of how much data we have added. |
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$this->_data_count += $num; |
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} |
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/** |
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* Same as add_reference |
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* NOTE : only exists for compatibility with 1.1.x |
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* |
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* @deprecated |
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* |
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* @access public |
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* @param mixed - a reference to some variable. |
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*/ |
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function push_reference( &$content ) { |
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$this->add_reference( $content ); |
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} |
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/** |
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* Add content onto content stack |
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* so you can change the item later. |
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* |
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* adds content to tag as a FIFO |
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* You can only add 1 element at a time, and |
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* it will be added as a reference. So you can't do |
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* push_reference("something");, since "something" is a |
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* static. |
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* |
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* @access public |
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* |
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* @param mixed $content - either string, or tag object. |
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* the tag object gets stored as a |
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* reference to the original, so you |
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* can push it, then modify it later. |
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*/ |
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function add_reference( &$content ) { |
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$this->_content[] = &$content; |
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$this->_data_count++; |
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} |
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/** |
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* destroy existing content and start with new content. |
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* |
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* @access public |
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* @param mixed $content can be tag object, or raw (string). |
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*/ |
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function reset_content( ) { |
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$this->_content = array(); |
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$this->_data_count = 0; |
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$args = func_get_args(); |
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call_user_func_array( array(&$this, "add"), $args); |
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} |
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/** |
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* counts the number of content objects |
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* |
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* @access public |
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* @return int |
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*/ |
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function count_content( ) { |
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return $this->_data_count; |
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} |
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/** |
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* This method is used to set the bitmask |
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* flags for this tag. It tells the |
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* class how to render the tag. |
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* |
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* NOTE: the child class can override this |
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* to set the options |
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*/ |
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function _set_flags() { |
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$this->_flags = _NEWLINEAFTERCONTENT | _INDENT; |
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} |
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/** |
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* function to set the indent flag |
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* |
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* @access public |
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* @param boolean $flag TRUE or FALSE |
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*/ |
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function set_indent_flag( $flag ) { |
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if ($flag) { |
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$this->_flags |= _INDENT; |
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} else { |
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$this->_flags &= ~_INDENT; |
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} |
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} |
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/** |
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* This flag gets the current value |
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* of the indent flag |
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* |
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* @access public |
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* |
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* @return boolean |
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*/ |
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function get_indent_flag() { |
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return $this->_flags & _INDENT; |
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} |
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/** |
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* This function turns on the collapse flag |
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* |
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* @access public |
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* |
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* @param boolean - the collapse flag |
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* @param boolean - the indent flag |
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* DEFAULT: TRUE; |
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*/ |
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function set_collapse($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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if (!$indent) { |
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$this->set_indent_flag($indent); |
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$this->_flags &= ~_NEWLINEAFTERCONTENT; |
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} |
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} |
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/** |
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* returns leading indent for tag |
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* |
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* @access private |
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* |
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* @param int the indentation level for this tag. |
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* @return string |
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*/ |
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function _render_indent($indent_level, $debug_flag=0) { |
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$indent = ""; |
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if ( $debug_flag && $indent_level > 0) { |
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$indent_level *=2; |
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} |
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if ( ($this->_flags & _INDENT) && $indent_level > 0) { |
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$indent = str_repeat(_INDENT_STR, $indent_level); |
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} |
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if ( $debug_flag && $indent_level > 0) { |
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$indent = str_replace(_INDENT_STR, " ", $indent); |
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} |
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return $indent; |
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} |
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} |
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?> |