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<?php
/**
* @package dompdf
* @link http://www.dompdf.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
* @version $Id: frame_factory.cls.php 470 2012-02-06 19:36:13Z fabien.menager $
*/
/**
* Contains frame decorating logic
*
* This class is responsible for assigning the correct {@link Frame_Decorator},
* {@link Positioner}, and {@link Frame_Reflower} objects to {@link Frame}
* objects. This is determined primarily by the Frame's display type, but
* also by the Frame's node's type (e.g. DomElement vs. #text)
*
* @access private
* @package dompdf
*/
class Frame_Factory {
/**
* Decorate the root Frame
*
* @param $root Frame The frame to decorate
* @param $dompdf DOMPDF The dompdf instance
* @return Page_Frame_Decorator
*/
static function decorate_root(Frame $root, DOMPDF $dompdf) {
$frame = new Page_Frame_Decorator($root, $dompdf);
$frame->set_reflower( new Page_Frame_Reflower($frame) );
$root->set_decorator($frame);
return $frame;
}
/**
* Decorate a Frame
*
* @param $root Frame The frame to decorate
* @param $dompdf DOMPDF The dompdf instance
* @return Frame_Decorator
* FIXME: this is admittedly a little smelly...
*/
static function decorate_frame(Frame $frame, DOMPDF $dompdf) {
if ( is_null($dompdf) )
throw new Exception("foo");
$style = $frame->get_style();
switch ($style->display) {
case "block":
$positioner = "Block";
$decorator = "Block";
$reflower = "Block";
break;
case "inline-block":
$positioner = "Inline";
$decorator = "Block";
$reflower = "Block";
break;
case "inline":
$positioner = "Inline";
if ( $frame->is_text_node() ) {
$decorator = "Text";
$reflower = "Text";
}
else {
if ( DOMPDF_ENABLE_CSS_FLOAT && $style->float !== "none" ) {
$decorator = "Block";
$reflower = "Block";
}
else {
$decorator = "Inline";
$reflower = "Inline";
}
}
break;
case "table":
$positioner = "Block";
$decorator = "Table";
$reflower = "Table";
break;
case "inline-table":
$positioner = "Inline";
$decorator = "Table";
$reflower = "Table";
break;
case "table-row-group":
case "table-header-group":
case "table-footer-group":
$positioner = "Null";
$decorator = "Table_Row_Group";
$reflower = "Table_Row_Group";
break;
case "table-row":
$positioner = "Null";
$decorator = "Table_Row";
$reflower = "Table_Row";
break;
case "table-cell":
$positioner = "Table_Cell";
$decorator = "Table_Cell";
$reflower = "Table_Cell";
break;
case "list-item":
$positioner = "Block";
$decorator = "Block";
$reflower = "Block";
break;
case "-dompdf-list-bullet":
if ( $style->list_style_position === "inside" )
$positioner = "Inline";
else
$positioner = "List_Bullet";
if ( $style->list_style_image !== "none" )
$decorator = "List_Bullet_Image";
else
$decorator = "List_Bullet";
$reflower = "List_Bullet";
break;
case "-dompdf-image":
$positioner = "Inline";
$decorator = "Image";
$reflower = "Image";
break;
case "-dompdf-br":
$positioner = "Inline";
$decorator = "Inline";
$reflower = "Inline";
break;
default:
// FIXME: should throw some sort of warning or something?
case "none":
$positioner = "Null";
$decorator = "Null";
$reflower = "Null";
break;
}
// Handle CSS position
$position = $style->position;
if ( $position === "absolute" )
$positioner = "Absolute";
else if ( $position === "fixed" )
$positioner = "Fixed";
// Handle nodeName
$node_name = $frame->get_node()->nodeName;
if ( $node_name === "img" ) {
$style->display = "-dompdf-image";
$decorator = "Image";
$reflower = "Image";
}
$positioner .= "_Positioner";
$decorator .= "_Frame_Decorator";
$reflower .= "_Frame_Reflower";
$deco = new $decorator($frame, $dompdf);
$deco->set_positioner( new $positioner($deco) );
$reflow = new $reflower($deco);
$deco->set_reflower( $reflow );
return $deco;
}
}